A quick locking and unlocking device for a folding shed and frame

Abstract

The utility model belongs to rail transit equipment technical field relates to a quick locking and unlocking device of folding shed and frame, main body structure includes locking frame and its bottom welding lock seat and inside setting locking batten, the lock block that is set in lock seat, lock block stretches into locking frame and is contacted with locking batten, through the connecting structure between folding shed and frame of optimization, lock seat and locking frame are welded together, and the locking batten of long circular hole is placed in locking frame, and the lock block is fixedly connected with lock seat through lock post and shaft with baffle ring, rotates lock post, and lock block is rotated into the long circular hole of locking batten and drives locking batten to rise and props up rubber strip and shed cloth, realizes locking, and lock post is rotated reversely, and lock block is rotated out of the long circular hole of locking batten, and locking batten falls back, realizes unlocking, fixed connection and quick unlocking are fast, and locking and connection are reliable, and locking is not easy to appear loose, and its structure is compact and simple, and installation is convenient, and the sealing property is good, and the waterproof performance is excellent, and the maintainability is strong.

Description

Technical fields:

[0001] This utility model belongs to the field of rail transit equipment technology, specifically relating to a quick locking and unlocking device for a folding canopy and frame, used to quickly lock and unlock the folding canopy and frame of a through passage. Background technology:

[0002] A connecting passageway is an internal passageway through which passengers can freely walk from one carriage of a rail transit vehicle to another and feel safe and comfortable. The folding canopy frame is one of the important components of the connecting passageway. The locking device is used to connect the main body of the connecting passageway with the two vehicles or the connecting passageway itself, and plays the role of fixing the connecting passageway.

[0003] Currently, the locking and unlocking devices for folding frames on the market involve welding the locking tongue fixing seat to the frame, fixing the locking tongue, locking tongue washer and locking tongue fixing seat with hexagonal head screws, and fixing the spring piece to the locking tongue fixing seat with a pop rivet. The spring piece presses against the outside of the locking tongue, and rotating the locking tongue makes it screw into the folding frame to achieve the locking function. Reverse rotation of the locking tongue makes it screw out of the folding frame to achieve the unlocking function. Not only is the installation and disassembly cumbersome, the locking is prone to loosening, the cost is high, and the failure rate is high, but the axial movement is restrained by screws, and loosening often occurs due to vibration or external force. For example, Chinese Patent 201822020635.4 discloses a locking device, including a latch mounting seat for connection with a frame, a latch rotatably connected to the latch mounting seat, an elastic ball head disposed on the latch mounting seat, and a first groove disposed on the latch. The latch mounting seat has a front end near the latch and a rear end away from the latch. The latch mounting seat includes a receiving groove disposed on the front end, the elastic ball head is placed in the receiving groove and can be engaged in the first groove when the latch is locked. The latch mounting seat includes an adjustment hole that extends from the front end to the rear end and penetrates the latch mounting seat. The locking device also includes an adjustment stud screwed into the adjustment hole from the rear end. The end face of the adjustment stud near the front end and the hole wall of the adjustment hole together form the receiving groove. The latch mounting seat includes a blind hole opened at the front end, the blind hole forming the receiving groove, and an adjustment shim disposed in the receiving groove to adjust the receiving length of the receiving groove. The number of adjustment shims is at least [number missing]. One, also includes a ball-head plunger, the ball-head plunger including a shaft portion, a ball head portion and an elastic element connecting the two, the ball head portion and the elastic element together forming an elastic ball head, and also includes a second groove provided on the latch, the second groove being spaced apart from the first groove in the rotation path of the latch; the elastic ball head can be engaged into the second groove in the unhooked state of the latch, the latch includes a connecting portion for rotatably connecting with the latch mounting seat and a locking portion for cooperating with the frame to lock the folding canopy, the first groove and the second groove are both provided on the connecting portion and along the radial direction of the connecting portion, the first groove and / or the second groove extend from the center of the connecting portion to the edge of the connecting portion, the side of the locking portion near the elastic ball head is provided with a guide surface, the guide surface being used to guide the locking portion during the process of locking the folding canopy, the latch mounting seat is provided with a boss pin, the connecting portion is sleeved on the boss pin, the locking device also includes a fastener for pressing the connecting portion against the front end, the fastener being connected to the boss pin.

[0004] Therefore, there is an urgent need to develop and design a device for quick locking and unlocking of the folding canopy and frame to solve the above-mentioned technical problems. Utility Model Content:

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and to develop and design a quick locking and unlocking device for the folding canopy and the frame. By optimizing the structure, it avoids loosening of the lock and facilitates the quick installation and disassembly of the folding canopy.

[0006] To achieve the above objectives, the main structure of the quick locking and unlocking device for the folding frame and the frame involved in this utility model includes a locking frame and a lock seat welded to its bottom, a locking pressure strip set inside, and a locking block set in the lock seat. The locking block extends into the locking frame and contacts the locking pressure strip.

[0007] The bottom of the lock block involved in this utility model is connected to the lock seat through a lock post and a shaft retaining ring, and the top passes through a hole opened on the locking frame and contacts the locking pressure strip inside the locking frame. The lock post has a polygonal structure and makes multi-faceted contact with the lock block. The shaft retaining ring is used for fastening, which makes the locking and connection reliable and the locking is not easy to loosen. It is convenient for the quick installation and disassembly of the folding frame. The locking pressure strip has an elongated hole.

[0008] Compared with existing technologies, this utility model provides a simpler and more efficient quick locking and unlocking device by optimizing the connection structure between the folding tent and the frame. It achieves quick fixed connection and quick unlocking of the folding tent and the frame. The lock seat is welded to the locking frame, and a locking strip with an elongated hole is placed inside the locking frame. The lock block is fixedly connected to the lock seat via a lock post and a retaining ring. Rotating the lock post causes the lock block to screw into the elongated hole of the locking strip, causing the locking strip to rise and press against the rubber strip and the tent fabric, thus locking. Reverse rotation of the lock post causes the lock block to unscrew from the elongated hole of the locking strip, and the locking strip falls back, thus unlocking. The fixed connection and quick unlocking are fast, the locking and connection are reliable, and the locking is not prone to loosening. Its structure is compact and simple, easy to install, has good sealing performance, excellent waterproof performance, facilitates quick installation and disassembly of the folding tent, is highly maintainable, and saves costs. Attached image description:

[0009] Figure 1 This is a schematic diagram of the main structure principle of this utility model.

[0010] Figure 2 This is an exploded view of the main structure of this utility model.

[0011] Figure 3 This is a schematic diagram of the main structure of the locking pressure strip involved in this utility model.

[0012] Figure 4 This is a schematic diagram of the locked state of this utility model.

[0013] Figure 5 This is a schematic diagram of the unlocked state of this utility model.

[0014] Figure 6 This is a schematic diagram of the usage state of this utility model. Detailed implementation method:

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] Example 1:

[0017] The main structure of the quick-locking and unlocking device for the folding canopy and frame involved in this embodiment is as follows: Figure 1 As shown, it includes a locking frame 1, a locking seat 2, a locking block 3, a locking pin 4, a shaft retaining ring 5, a locking pressure strip 6, and an elongated hole 7. The locking frame 1 is welded to the bottom of the locking seat 2, and the locking block 3 is provided in the locking seat 2. The bottom of the locking block 3 is connected to the locking seat 2 through the locking pin 4 and the shaft retaining ring 5, and the top passes through the hole opened on the locking frame 1 and contacts the locking pressure strip 6 inside the locking frame 1. The locking pressure strip 6 is provided with an elongated hole 7.

[0018] When using the quick locking and unlocking device for the folding canopy and frame involved in this embodiment:

[0019] When the locking pin 4 is rotated and the locking block 3 is screwed into the elongated hole 7 of the locking pressure strip 6, the locking pressure strip 6 is driven to rise and press against the rubber strip 8 and the canopy 9 to achieve locking.

[0020] Rotate the locking pin 4 in the opposite direction, and the locking block 3 will rotate out of the elongated hole 7 of the locking pressure bar 6. The locking pressure bar 6 will fall back, releasing the rubber strip 8 and the canopy 9, thus unlocking the device.

Claims

1. A device for quick locking and unlocking of a folding canopy and a frame, characterized in that, The main structure includes a locking frame and a lock seat welded to its bottom, a locking pressure strip installed inside, and a lock block installed in the lock seat. The lock block extends into the locking frame and contacts the locking pressure strip.

2. The quick locking and unlocking device for the folding canopy and frame according to claim 1, characterized in that, The bottom of the lock block is connected to the lock seat via a lock pin and a retaining ring.

3. The quick locking and unlocking device for the folding canopy and frame according to claim 1, characterized in that, The top of the locking block passes through the hole in the locking frame and contacts the locking pressure strip inside the locking frame.

4. The quick locking and unlocking device for the folding canopy and frame according to claim 2, characterized in that, The locking pin has a polygonal structure and makes multi-faceted contact with the locking block.

5. The quick locking and unlocking device for the folding canopy and frame according to claim 3, characterized in that, The locking strip has an elongated hole.

Images