CN210289330U

CN210289330U - Limiting and locking device of mast tripod support frame

Info

Publication number: CN210289330U
Application number: CN201921055775.3U
Authority: CN
Inventors: 宋明; 于震川
Original assignee: Changzhou Langdragon Electrical And Mechanical Technology Co ltd
Current assignee: Changzhou Langdragon Electrical And Mechanical Technology Co ltd
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2020-04-10
Anticipated expiration: 2029-07-08

Abstract

The utility model relates to a mast technical field especially relates to a spacing locking device of mast tripod support frame, it includes the sliding sleeve of suit on the mast, the pivoted is installed in catch and the three support frame support body at sliding sleeve top, support frame support body hinge dress is on the sliding sleeve and the support frame support body middle part and mast between the hinge be equipped with the telescopic link, on the mast with every support frame support body corresponding position fixed two salient muscle respectively, be equipped with the catch breach on the catch, the catch breach cooperatees with the salient muscle and makes catch and sliding sleeve slide from top to bottom along the mast, be equipped with salient muscle breach and lower protruding muscle breach on the salient muscle respectively. The device provided by the utility model simple structure just guarantees that the tripod is all more firm in packing up and the expansion state.

Description

Limiting and locking device of mast tripod support frame

Technical Field

The utility model relates to a mast technical field especially relates to a spacing locking device of mast tripod support frame.

Background

The mast is used for installing the cloud platform or lamps and lanterns at the top, because the mast height is higher, if only fix at mast bottom and ground, its stability is relatively poor, generally need increase the stability of tripod support frame in order to increase the mast at the bottom. The triangular support frame needs to be retracted and unfolded in the using process, the triangular support frame is in a retracted state when the mast is not used, and the triangular support frame supports the mast in an unfolded state when the mast is used, so that the mast cannot overturn. The triangular support frame and the mast are connected together, and the triangular support frame is folded and unfolded by up-and-down sliding of the sliding sleeve on the triangular support frame on the mast. Since the triangular support frame sliding sleeve can slide up and down on the mast, the sliding sleeve needs to be stopped after the mast does not work and is retracted, so that the triangular support frame is prevented from being opened due to sliding of the sliding sleeve to influence storage and transportation of the mast. Meanwhile, the sliding sleeve is required to be stopped when the mast is unfolded to work, so that the triangular support frame structure is stable and the mast is prevented from overturning.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a spacing locking device of mast tripod frame of easy operation and assurance tripod frame in pack up and the expansion state all relatively more firm is provided.

The utility model discloses a realize through following technical scheme:

the limiting locking device of the mast tripod support frame comprises a sliding sleeve sleeved on a mast, a lock ring and three support frame bodies, wherein the lock ring is rotatably installed at the top of the sliding sleeve, the support frame bodies are hinged on the sliding sleeve, a telescopic rod is hinged between the middle of each support frame body and the bottom of the mast, two protruding ribs are fixedly arranged on the mast corresponding to each support frame body respectively, a lock ring notch is arranged on each lock ring, the lock ring notch is matched with the protruding ribs to enable the lock ring and the sliding sleeve to slide up and down along the mast, and an upper protruding rib notch and a lower protruding rib notch are arranged on each protruding rib respectively.

Furthermore, a plurality of limiting screws are fixedly mounted at the top of the sliding sleeve, arc-shaped holes are formed in the positions, corresponding to the limiting screws, of the lock ring, and the limiting screws penetrate through the arc-shaped holes.

Beneficial effects of the utility model

A limit locking device of a mast tripod supporting frame utilizes the matching of a convex rib on a mast and a lock ring notch, the sliding sleeve of the triangular support frame is limited and locked, the lock ring can rotate on the sliding sleeve, when the sliding sleeve and the lock ring slide up and down along the outer surface of the mast, the lock ring notch on the lock ring slides up and down along the two convex ribs on the outer surface of the mast, the convex ribs are respectively provided with an upper convex rib notch and a lower convex rib notch, when the lock ring reaches the notch position of the upper convex rib, the lock ring is rotated, the retraction position of the tripod can be locked, the triangular support frame is prevented from being influenced by the sliding opening of the sliding sleeve after the mast is retracted without work, when the lock ring reaches the position of the lower protruding rib notch, the lock ring is rotated, so that the unfolding position of the triangular frame can be locked, the triangular support frame structure of the mast is more stable during unfolding work, the mast is prevented from overturning, and the operation is very simple.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an enlarged view of the locked state;

in the figure, 1, a mast, 2, a lock ring, 3, a sliding sleeve, 4, a support frame body, 5, a telescopic rod, 6, a lower convex rib notch, 7, a lock ring notch, 8, an arc hole, 9, a limiting screw, 10, a convex rib and 11, an upper convex rib notch are arranged.

Detailed Description

The utility model provides a spacing locking device of mast tripod support frame, its includes that the sliding sleeve 3 of suit on mast 1, pivoted install catch 2 and three support frame support body 4 at the sliding sleeve top, the support frame support body hinge is adorned on the sliding sleeve and the support frame support body middle part and mast bottom between the hinge be equipped with telescopic link 5, make the tripod support firm and be convenient for shrink, on the mast with every support frame support body corresponding position respectively fixed be equipped with two protruding muscle 10, protruding muscle can with mast integrated into one piece, make the preparation simpler, the structure is more firm, be equipped with catch breach 7 on the catch, catch breach and protruding muscle cooperate and make catch and sliding sleeve slide from top to bottom along the mast, be equipped with protruding muscle breach 11 and protruding muscle breach 6 down on the protruding muscle respectively.

Furthermore, a plurality of limiting screws 9 are fixedly mounted at the top of the sliding sleeve, arc-shaped holes 8 are formed in the positions, corresponding to the limiting screws, of the locking ring, the limiting screws penetrate through the arc-shaped holes, the locking ring and the sliding sleeve are convenient to fix, the locking ring can rotate relative to the sliding sleeve along the arc-shaped holes, locking and limiting are facilitated, and the locking ring is prevented from being damaged due to rotation transition.

Because the protruding muscle through on the mast and the cooperation of catch breach, carry on spacing and locking to the sliding sleeve of triangular support frame, make the catch rotate on the sliding sleeve, when sliding sleeve and catch slide up along the mast surface, catch breach on the catch slides from top to bottom along two protruding muscle of mast surface, be equipped with protruding muscle breach and protruding muscle breach down on the protruding muscle respectively, the catch rotates when catch reachs protruding muscle breach position, just can realize the locking that the tripod packed up the position, prevent to pack up the back triangular support frame at the inoperative of mast and open because of the sliding sleeve slides and influence the storage and the transportation of mast, rotate the catch when catch reachs protruding muscle breach position down, just can realize the locking that the tripod opened the position, make the mast when the work of expansion triangular support frame structure more stable, prevent that the mast from toppling.

To sum up, the utility model discloses a spacing locking device of mast tripod support frame, simple structure just guarantees that the tripod support frame is all more firm in packing up and the expansion state.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The limiting locking device of the mast tripod support frame is characterized by comprising a sliding sleeve sleeved on a mast, a lock ring and three support frame bodies, wherein the lock ring is rotatably installed at the top of the sliding sleeve, the support frame bodies are hinged on the sliding sleeve, a telescopic rod is hinged between the middle part of each support frame body and the bottom of the mast, two convex ribs are fixedly arranged on the mast at positions corresponding to each support frame body respectively, a lock ring notch is arranged on each lock ring, the lock ring notch is matched with the convex ribs to enable the lock ring and the sliding sleeve to slide up and down along the mast, and an upper convex rib notch and a lower convex rib notch are arranged on each convex rib respectively.

2. The limit locking device of a mast tripod stand as claimed in claim 1, wherein a plurality of limit screws are fixedly mounted on the top of the sliding sleeve, and arc-shaped holes are formed on the locking ring at positions corresponding to the limit screws, and the limit screws pass through the arc-shaped holes.