IP Library › Granted Patent US 12,546,437
Granted Patent B2
US 12,546,437 · App. 18/630,646 · Granted Feb 10, 2026

Telescopic tripod with linkage locking

Inventor: Longfeng Xu (Cixi, CN)
Assignee: Ningbo Langrui Technology Co., Ltd.
F16M11/34F16B7/1427F16M2200/025
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,546,437
App. No.
18/630,646
Granted
Feb 10, 2026
Kind
B2
Abstract

A telescopic tripod with linkage locking is provided, which includes a support base, and three sets of first support tubes are hinged on the support base along a circumferential direction, wherein a sliding seat is slidably installed on the first support tube, a second support tube is fixedly installed on a lower side of the sliding seat, an installation seat is installed at a lower end of the second support tube, and a third support tube is slidably installed inside the installation seat. The sliding seat is provided with a first compression member controlled by a locking member, the installation seat is provided with a second compression member connected to the locking member through a first steel cable, and the second compression member is in contact with the third support tube. The telescopic tripod can realize a joint locking effect and make the operation more convenient.

Claims (10)

1 . A telescopic tripod with linkage locking, comprising a support base ( 1 ), and three sets of support tubes are hinged on the support base ( 1 ) along a circumferential direction, wherein each set of the three sets of the support tubes comprises a first support tube ( 2 ), a second support tube ( 4 ) and a third support tube ( 5 ), a sliding seat ( 3 ) is slidably installed on the first support tube ( 2 ), the second support tube ( 4 ) is fixedly installed on a lower side of the sliding seat ( 3 ), an installation seat ( 13 ) is installed at a lower end of the second support tube ( 4 ), and the third support tube ( 5 ) is slidably installed inside the installation seat ( 13 ); the sliding seat ( 3 ) is provided with a first compression member ( 7 ) controlled by a locking member ( 6 ), the first compression member ( 7 ) is in contact with the first support tube ( 2 ), the installation seat ( 13 ) is provided with a second compression member ( 8 ) connected to the locking member ( 6 ) through a first steel cable ( 9 ), and the second compression member ( 8 ) is in contact with the third support tube ( 5 );

the number of the first support tube ( 2 ) in each set of the three sets of the support tubes is two, the sliding seat ( 3 ) is provided with a sleeve portion ( 10 ) in symmetrical arrangement corresponding to the first support tube ( 2 ), the sleeve portion ( 10 ) is sleeved on the first support tube ( 2 ), a rear side of the sliding seat ( 3 ) is provided with a first opening, the first compression member ( 7 ) is installed on the first opening, the sliding seat ( 3 ) is provided with an installation groove ( 11 ), the locking member ( 6 ) is rotatably installed in the installation groove ( 11 ), and the locking member ( 6 ) is connected to the first compression member ( 7 ) through a second steel cable ( 12 ).

2 . The telescopic tripod with linkage locking according to claim 1 , wherein a hinge member ( 23 ) is installed at an upper end of the first support tube ( 2 ), a hinge seat is provided on the support base ( 1 ) corresponding to the hinge member ( 23 ), and the hinge member ( 23 ) is hinged on the hinge seat.

3 . The telescopic tripod with linkage locking according to claim 1 , wherein a slot ( 14 ) is provided on the locking member ( 6 ), one end of the second steel cable ( 12 ) corresponding to the slot ( 14 ) is provided with a clamp mounting part ( 15 ); the clamp mounting part ( 15 ) is installed inside the slot ( 14 ), and an other end of the second steel cable ( 12 ) is fixedly connected to the first compression member ( 7 ).

4 . The telescopic tripod with linkage locking according to claim 1 , wherein a handle portion ( 16 ) for rotating the locking member ( 6 ) is installed on an outer side of the sliding seat ( 3 ).

5 . The telescopic tripod with linkage locking according to claim 1 , wherein one end of the locking member ( 6 ) is provided with a camshaft ( 24 ), and an upper end of the first steel cable ( 9 ) is provided with a sleeve part ( 25 ) corresponding to the camshaft ( 24 ), the sleeve part ( 25 ) is fixedly connected to the camshaft ( 24 ), and a lower end of the first steel cable ( 9 ) is fixedly connected to the second compression member ( 8 ).

6 . The telescopic tripod with linkage locking according to claim 1 , wherein a top surface of the second compression member ( 8 ) is provided with a first inclined surface ( 17 ), a second inclined surface ( 18 ) is provided in the installation seat ( 13 ) corresponding to the first inclined surface ( 17 ), and the first inclined surface ( 17 ) is in contact with the second inclined surface ( 18 ).

7 . The telescopic tripod with linkage locking according to claim 1 , wherein a guide block ( 19 ) is provided at an upper end of the third support tube ( 5 ), the guide block ( 19 ) is provided with a notch corresponding to the second support tube ( 4 ), and the notch is clamped on the second support tube ( 4 ).

8 . The telescopic tripod with linkage locking according to claim 1 , wherein a foot pad ( 20 ) is installed at a lower end of the third support tube ( 5 ).

9 . The telescopic tripod with linkage locking according to claim 1 , wherein the telescopic tripod further comprises a lifting ring ( 21 ), a plug ( 29 ) is installed at a lower end of the first support tube ( 2 ), the rear side of the plug ( 29 ) is hinged with a connecting bracket ( 22 ), and the other end of the connecting bracket ( 22 ) is hinged on the lifting ring ( 21 ).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 21, 2026
From: XU, LONGFENG
To: NINGBO LANGRUI TECHNOLOGY CO., LTD.
Reel/Frame 073525/0439 →
Priority Claims (1)
CN 202323123997.3 · Nov 20, 2023 · national
Continuity (1)
Related Publication 20250164066A1 · May 22, 2025
References Cited (33)
US 544466A · Fisher · 1895 [cited by examiner]
US 663535A · Essner et al. · 1900 [cited by examiner]
US 757766A · Palmer · 1904 [cited by examiner]
US 821335A · Butler · 1906 [cited by examiner]
US 1495458A · Thalhammer · 1924 [cited by examiner]
US 2519549A · Coutant · 1950 [cited by examiner]
US 3963207A · Guasti · 1976 [cited by examiner]
US 5320316A · Baker · 1994 [cited by examiner]
US 6286795B1 · Johnson · 2001 [cited by examiner]
US 7654494B2 · Cartoni · 2010 [cited by examiner]
US 8317141B2 · Fischer · 2012 [cited by examiner]
US 8534620B2 · Zierer · 2013 [cited by examiner]
US 9027895B2 · Hunter · 2015 [cited by examiner]
US 10281081B2 · Busarow · 2019 [cited by examiner]
US 11608934B2 · Speggiorin · 2023 [cited by examiner]
US 20010010764A1 · Sherwin · 2001 [cited by examiner]
US 20040188575A1 · Speggiorin · 2004 [cited by examiner]
US 20090072100A1 · Zierer · 2009 [cited by examiner]
US 20100064739A1 · Lu · 2010 [cited by examiner]
US 20130270405A1 · Hunter · 2013 [cited by examiner]
US 20140301730A1 · Johnson · 2014 [cited by examiner]
US 20150233521A1 · Hida · 2015 [cited by examiner]
US 20180274717A1 · Busarow · 2018 [cited by examiner]
US 20190195419A1 · Fiore · 2019 [cited by examiner]
US 20210010637A1 · He · 2021 [cited by examiner]
US 20210254783A1 · Speggiorin · 2021 [cited by examiner]
US 20210396349A1 · Speggiorin · 2021 [cited by examiner]
US 20230020970A1 · Zahariev · 2023 [cited by examiner]
US 20230184372A1 · Thomason · 2023 [cited by examiner]
US 20250084959A1 · Gorden · 2025 [cited by examiner]
US 20250155073A1 · Van Dongen · 2025 [cited by examiner]
US 20250164066A1 · Xu · 2025 [cited by examiner]
US 20250216752A1 · Zhang · 2025 [cited by examiner]