Mechanical lock hook for improving safety of suspension cage

Abstract

The utility model discloses a mechanical latch hook for improving the safety of a cage, which comprises a fence, the cage is arranged in the fence, the fence is connected with a fence door through a door frame, a locking piece is arranged on one side of the fence, which is positioned on the door frame, and the locking piece is used for releasing / locking the fence door when the cage moves downwards / upwards. By means of the locking piece, it can be ensured that the fence door is always kept in the locked state when the lifting cage moves downwards or ascends, the fence door can be opened until the lifting cage moves downwards to the bottommost end, and therefore the fence door is prevented from being opened by mistake when the lifting cage does not descend completely, and the safety of a working place is improved. And the components such as the guide groove plate, the extrusion plate and the padlock plate are adopted, and a reliable locking function is provided through a specific structural design and an action mechanism, so that the safety of a working place is guaranteed. The guide groove plate, the extrusion plate, the buckling lock plate and other components are introduced into the mechanical lock hook, so that the operation of the locking piece is more flexible and stable, the service life of the mechanical lock hook is prolonged, and the reliability is improved.

Description

Technical Field

[0001] The utility model relates to a mechanical lock hook for improving the safety of a hanging cage. Background Art

[0002] A hanging cage is a device used for aerial work, also known as a hanging basket. It is a structure similar to a cage or basket that can be hoisted to a high place so that workers can perform maintenance, cleaning or construction operations.

[0003] The cage is usually made of metal material, with a sturdy frame and a safe bottom plate. It can lift workers and tools to where they need to work through lifting machinery such as cranes or tower cranes. The cage is usually equipped with safety belts, guardrails and other protective facilities to ensure the safety of workers when working at height.

[0004] In the prior art, the mechanical lock hook of the fence protection door is mostly set at the bottom of the cage. When the cage moves up and down, it can be opened when it touches the cage but before the cage reaches the bottom, which poses a risk of people accidentally entering. Therefore, a mechanical lock hook is proposed to improve the safety of the cage. Utility Model Content

[0005] The purpose of the utility model is to provide a mechanical lock hook for improving the safety of a cage, so as to solve the problem in the prior art proposed in the above-mentioned background technology that the mechanical lock hook of the fence protection door can be opened before the cage runs to the bottom, posing a risk of people accidentally entering.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a mechanical lock hook for improving the safety of a cage, comprising a fence, a cage is arranged inside the fence, a fence is connected to a gate through a door frame, and a locking member is arranged on one side of the door frame.

[0007] The locking member is used to release / lock the gate when the cage moves down / up.

[0008] Preferably, the locking component includes a guide groove plate arranged inside the fence, an open groove is opened on one side of the guide groove plate, an extrusion plate is arranged inside the open groove, the extrusion plate is connected to the rotating shaft through a connecting rod, and a locking plate is arranged on the side of the rotating shaft away from the connecting rod.

[0009] Preferably, the width of the extrusion plate is larger than that of the guide groove plate, so that the cage can move downward to press the extrusion plate.

[0010] Preferably, a return spring is provided on the guide groove plate directly below the extrusion plate, so that the extrusion plate can move elastically inside the open groove through the return spring.

[0011] Preferably, the inner wall of the enclosure is provided with a limit plate for the upward and downward movement of the connecting plate.

[0012] Preferably, a hook plate is provided at one end of the snap lock plate, a snap lock groove is formed between the hook plate and the snap lock plate, and the snap lock groove matches the thickness of the fence so that the snap lock plate can be snapped onto the top of the fence through the snap lock groove.

[0013] Preferably, the fence is located above the door frame and is provided with a bearing plate for the locking plate to abut against.

[0014] Preferably, a pressure-bearing support plate for abutting against a bearing plate is provided at the lower portion of the locking plate, and the pressure-bearing support plate is used for the locking plate to abut against the bearing plate to drive the locking plate to rotate through the rotating shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model can ensure that the fence door is always locked when the cage moves down / up by means of the locking parts, and the fence door can not be opened until the cage moves down to the bottom, thereby preventing the fence door from being opened by mistake when the cage is not completely lowered, thereby improving the safety of the workplace.

[0017] The guide groove plate, extrusion plate and lock plate are used as components to provide a reliable locking function through specific structural design and action mechanism to ensure the safety of the workplace.

[0018] The mechanical lock hook introduces components such as guide groove plates, extrusion plates and lock plates, making the operation of the locking parts more flexible and stable, and improving the service life and reliability of the mechanical lock hook.

[0019] By introducing designs such as a reset spring, an extrusion plate and a limit plate, the extrusion plate moves elastically inside the opening groove through the action of the reset spring, driving the connecting rod to move linearly inside the limit plate, thereby ensuring the stability of the locking part. At the same time, when the cage rises, the reset spring elastically stretches, and the extrusion plate can automatically reset, reducing the complexity of the operation while further enhancing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the fence structure of an embodiment of the utility model;

[0022] Figure 3 It is an enlarged schematic diagram of the structure at location A of an embodiment of the utility model.

[0023] In the figure: 1. fence; 2. cage; 3. door frame; 4. gate; 5. locking piece; 501. guide groove plate; 502. opening groove; 503. extrusion plate; 504. connecting rod; 505. rotating shaft; 506. locking plate; 5061. hook plate; 5062. locking groove; 5063. bearing plate; 507. reset spring; 508. limit plate; 509. pressure support plate. DETAILED DESCRIPTION

[0024] In order to solve the problem in the prior art that the mechanical lock hook of the fence protection door can be opened before the cage runs to the bottom, which poses a risk of people entering by mistake, the embodiment of the utility model provides a mechanical lock hook that improves the safety of the cage. The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-3 The utility model provides a mechanical lock hook for improving the safety of a cage, comprising a fence 1, a cage 2 is arranged inside the fence 1, a fence door 4 is connected to the fence 1 through a door frame 3, and a locking member 5 is arranged on one side of the door frame 3 of the fence 1.

[0026] The locking member 5 includes a guide groove plate 501 arranged inside the fence 1, an open groove 502 is opened on one side of the guide groove plate 501, an extrusion plate 503 is arranged inside the open groove 502, the extrusion plate 503 is connected to the rotating shaft 505 through a connecting rod 504, and a locking plate 506 is arranged on the side of the rotating shaft 505 away from the connecting rod 504; the width of the extrusion plate 503 is larger than that of the guide groove plate 501, so that the cage 2 moves down and presses the extrusion plate 503; the guide groove plate 501 is provided with a return spring 507 directly below the extrusion plate 503, so that the extrusion plate 503 moves elastically inside the open groove 502 through the return spring 507; the inner wall of the enclosure is provided with a limit plate 508 for the up and down movement of the connecting plate;

[0027] A hook plate 5061 is provided at one end of the locking plate 506, and a locking groove 5062 is formed between the hook plate 5061 and the locking plate 506, and the locking groove 5062 matches the thickness of the fence 4, so that the locking plate 506 is clamped to the upper part of the fence through the locking groove 5062; the fence 1 is provided with a bearing plate 5063 for the locking plate 506 to abut against the bearing plate 5063 above the door frame 3; the lower part of the locking plate 506 is provided with a pressure support plate 509 for abutting against the bearing plate 5063, and the pressure support plate 509 is used for the locking plate 506 to abut against the bearing plate 5063 to drive the locking plate 506 to rotate through the rotating shaft 505;

[0028] The locking member 5 is used to release / lock the gate 4 when the cage 2 moves down / up.

[0029] The working principle of a mechanical lock hook for improving the safety of a cage provided by the utility model is as follows: when in use, when the cage 2 moves to the inside of the fence 1, the extrusion plate 503 is pressed together, so that it is pressed down inside the guide groove plate 501 through the opening groove 502, squeezing the reset spring 507, generating compression deformation, and the connecting rod 504 drives the buckle lock plate 506, and one end of the buckle lock plate 506 squeezes the pressure support plate 509 located on the side of the door frame 3 through the bearing plate 5063, so that it deflects through the rotating shaft 505 and the connecting rod 504 until the cage 2 moves down to the lowest end, at which time, the buckle lock groove 5062 of the buckle lock plate 506 deflects out from above the fence gate 4, removing the obstruction to the fence gate 4, and then the fence gate 4 can be released;

[0030] When the cage 2 moves upward, the return spring 507 continues to extend, and the connecting rod 504 moves upward through the limit plate 508. At this time, the locking plate 506 is deflected downward due to the gravity of the front hook plate 5061 until the hook plate 5061 is attached to the outside of the gate 4. At this time, the locking plate 506 is engaged with the top of the gate 4 through the locking groove 5062 to lock the gate 4.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanical lock hook for improving the safety of a cage, characterized in that: The invention comprises a fence (1), wherein a cage (2) is arranged inside the fence (1), wherein the fence (1) is connected to a fence door (4) via a door frame (3), wherein a locking member (5) is arranged on one side of the fence (1) located on the door frame (3), wherein the locking member (5) comprises a guide groove plate (501) arranged inside the fence (1), wherein an opening groove (502) is provided on one side of the guide groove plate (501), wherein an extrusion plate (503) is arranged inside the opening groove (502), wherein the extrusion plate (503) is connected to a rotating shaft (505) via a connecting rod (504), and wherein a locking plate (506) is arranged on the side of the rotating shaft (505) away from the connecting rod (504); The locking member (5) is used to release / lock the gate (4) when the cage (2) moves downward / upward.

2. A mechanical lock hook for improving the safety of a cage according to claim 1, characterized in that: The width of the extrusion plate (503) is greater than that of the guide groove plate (501), so that the cage (2) moves downward to press the extrusion plate (503).

3. A mechanical lock hook for improving the safety of a cage according to claim 2, characterized in that: The guide slot plate (501) is provided with a return spring (507) located directly below the extrusion plate (503), so that the extrusion plate (503) can move elastically inside the opening slot (502) via the return spring (507).

4. A mechanical lock hook for improving the safety of a cage according to claim 3, characterized in that: The inner wall of the fence (1) is provided with a limiting plate (508) for the connecting rod (504) to move up and down.

5. A mechanical lock hook for improving the safety of a cage according to claim 4, characterized in that: A hook plate (5061) is provided at one end of the locking plate (506), a locking groove (5062) is formed between the hook plate (5061) and the locking plate (506), and the locking groove (5062) matches the thickness of the fence (4), so that the locking plate (506) is snap-connected to the top of the fence through the locking groove (5062).

6. A mechanical lock hook for improving the safety of a cage according to claim 5, characterized in that: The fence (1) is located above the door frame (3) and is provided with a bearing plate (5063) for the locking plate (506) to abut against.

7. A mechanical lock hook for improving the safety of a cage according to claim 6, characterized in that: A pressure-bearing support plate (509) for abutting against the bearing plate (5063) is provided at the lower part of the locking plate (506); the pressure-bearing support plate (509) is used for the locking plate (506) to abut against the bearing plate (5063) to drive the locking plate (506) to rotate via the rotating shaft (505).

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