Safety mechanism and elevator backrest wheel

Abstract

The utility model relates to the technical field of hoister coupling wheels, in particular to a safety mechanism and a hoister coupling wheel, which comprises a nylon rod, and a supporting rod is inserted into the inner wall of the nylon rod; a telescopic block is inserted into the surface of the screw joint rod, a connecting rod is fixed to the surface of the telescopic block, a jacking ring is fixed to the end of the connecting rod, and a nut is screwed to the surface of the supporting rod; the extension plate is arranged on the surface of the supporting rod; the device has the beneficial effects that the supporting rod is inserted into the nylon rod, the two ends of the supporting rod are fixed through the insulating pad and the nut, the supporting rod is fixed into the nylon rod, the jacking ring is jacked on the surface of the nut, the nut drives the jacking ring to rotate in the rotating process, the jacking ring is connected with the telescopic block through the connecting rod, and the telescopic block rotates along with the jacking ring; the telescopic block drives the screw joint rod to rotate, the end of the screw joint rod is in screw joint with the interior of the supporting rod, after the screw joint rod rotates, the screw joint rod moves in the supporting rod, and the pushing ring moves along with the screw joint rod.

Description

Technical Field

[0001] The utility model relates to the technical field of hoist backrest wheels, in particular to a safety mechanism and a hoist backrest wheel. Background Art

[0002] The anode lifting mechanism plays an important role in driving the busbar to rise and fall in electrolytic production, and is an important part of electrolytic production. The backrest wheel plays an extremely important transmission role in the mechanism. Once a failure occurs, it is very easy to cause all the anodes on one side of the busbar to rise or fall, causing the horizontal large busbar to deform, which has a great impact on the tank condition.

[0003] The nylon rod is placed in the backrest wheel. There are crescent plates on both sides of the backrest wheel. When replacing, remove the crescent plates, take out the old nylon rod, replace it with a new one and install the crescent plates.

[0004] However, the inside of the nylon rod is hollow, and the support of the nylon rod is achieved by inserting a support rod into the inside of the nylon rod. However, since the support rod cannot completely fit into the inside of the nylon rod, the surface of the nylon rod is still prone to collapse. Utility Model Content

[0005] The purpose of the utility model is to provide a safety mechanism and a hoist backrest wheel to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safety mechanism, comprising:

[0007] A nylon rod, the inner wall of which is plugged with a support rod;

[0008] A screw-connected rod, a telescopic block is inserted on the surface of the screw-connected rod, a connecting rod is fixed on the surface of the telescopic block, a top holding ring is fixed on the end of the connecting rod, and a nut is screwed on the surface of the support rod; and

[0009] The extension plate is arranged on the surface of the support rod.

[0010] Preferably, the extension plate can move inside the support rod, the surface of the support rod is sleeved with an insulating pad, both ends of the screw rod are screwed inside the support rod, and a plurality of push rings are fixed on the surface of the screw rod.

[0011] Preferably, the extension plates are provided in multiple groups, and the surfaces of the multiple groups of extension plates are connected with stress rings, which are located inside the support rod. After the screw rod moves, the push ring on the surface of the screw rod is supported on the surface of the stress ring, so that the extension plates move.

[0012] Preferably, a spring is provided at the end of the telescopic block, and the spring is located inside the screw-connecting rod. The spring exerts a pulling force on the telescopic block, so that the telescopic block is retracted into the inside of the screw-connecting rod.

[0013] Preferably, the surface of the top holding ring is provided with teeth, and the surface of the nut is provided with teeth, and the teeth on the surface of the top holding ring mesh with the teeth on the surface of the nut.

[0014] Preferably, a supporting rod is hingedly connected to the surface of the connecting rod via a rotating shaft, and a supporting hole is opened on the surface of the screw-connecting rod, and the supporting rod can be inserted into the supporting hole.

[0015] A hoist backrest wheel comprises the above-mentioned safety mechanism.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The support rod proposed by the utility model is inserted into the interior of the nylon rod, and the two ends of the support rod are fixed by insulating pads and nuts, so that the support rod is fixed inside the nylon rod, and the top holding ring is held on the surface of the nut. During the rotation of the nut, the top holding ring is driven to rotate, and the top holding ring is connected to the telescopic block through a connecting rod. The telescopic block rotates with the top holding ring, and the telescopic block drives the screw-connected rod to rotate. The end of the screw-connected rod is screwed into the interior of the support rod. After the screw-connected rod rotates, the screw-connected rod moves inside the support rod, and the push ring moves with the screw-connected rod. After the push ring moves, it is held on the surface of the force ring, so that the extension plate moves on the surface of the support rod. After the extension plate moves, it is held on the inner wall of the nylon rod, thereby supporting the inner wall of the nylon rod. After the top holding rod swings, it is held in the top holding hole, and the top holding ring is pushed out from the surface of the nut, and the screw-connected rod no longer rotates with the nut. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a partial enlarged structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 4 for Figure 2 A schematic diagram of the enlarged structure in the middle.

[0022] In the figure: nylon rod 1, extension plate 2, support rod 3, insulating pad 4, nut 5, top holding ring 6, telescopic block 7, screw rod 8, connecting rod 9, force ring 11, push ring 12, top holding rod 13, top holding hole 14. DETAILED DESCRIPTION

[0023] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a safety mechanism, comprising:

[0025] A support rod 3 is inserted into the inner wall of the nylon rod 1; a telescopic block 7 is inserted into the surface of the screw-connected rod 8, a connecting rod 9 is fixed on the surface of the telescopic block 7, a top holding ring 6 is fixed on the end of the connecting rod 9, a nut 5 is screwed on the surface of the support rod 3, a spring is provided at the end of the telescopic block 7, the spring is located inside the screw-connected rod 8, the spring has a pulling force on the telescopic block 7, so that the telescopic block 7 is retracted into the inside of the screw-connected rod 8, the surface of the top holding ring 6 is provided with teeth, the surface of the nut 5 is provided with teeth, the teeth on the surface of the top holding ring 6 are meshed with the teeth on the surface of the nut 5, a top holding rod 13 is hinged on the surface of the connecting rod 9 through a rotating shaft, a top holding hole 14 is provided on the surface of the screw-connected rod 8, the top holding rod 13 can be inserted into the top holding hole 14, the top holding rod 13 is supported in the top holding hole 14 after swinging, the top holding ring 6 is pushed out from the surface of the nut 5, and the screw-connected rod 8 no longer rotates with the nut 5;

[0026] The extension plate 2 is arranged on the surface of the support rod 3, and the extension plate 2 can move inside the support rod 3. The surface of the support rod 3 is sleeved with an insulating pad 4. The two ends of the screw rod 8 are screwed inside the support rod 3. Multiple groups of push rings 12 are fixed on the surface of the screw rod 8. The extension plate 2 is provided with multiple groups, and the surfaces of the multiple groups of extension plates 2 are connected with force rings 11. The force ring 11 is located inside the support rod 3. After the screw rod 8 moves, the push ring 12 on the surface of the screw rod 8 is supported on the surface of the force ring 11, so that the extension plate 2 moves. After the screw rod 8 rotates, the screw rod 8 moves inside the support rod 3, and the push ring 12 moves with the screw rod 8. After the push ring 12 moves, it is supported on the surface of the force ring 11, so that the extension plate 2 moves on the surface of the support rod 3.

[0027] The support rod 3 is inserted into the interior of the nylon rod 1, and the two ends of the support rod 3 are fixed by insulating pads 4 and nuts 5 to fix the support rod 3 inside the nylon rod 1. The top holding ring 6 is held on the surface of the nut 5. The rotation of the nut 5 drives the top holding ring 6 to rotate. The top holding ring 6 is connected to the telescopic block 7 through a connecting rod 9. The telescopic block 7 rotates with the top holding ring 6. The telescopic block 7 drives the screw rod 8 to rotate. The end of the screw rod 8 is screwed into the interior of the support rod 3. After the screw rod 8 rotates, the screw rod 8 moves inside the support rod 3. The push ring 12 moves with the screw rod 8. After the push ring 12 moves, it is held on the surface of the force ring 11, so that the extension plate 2 moves on the surface of the support rod 3. After the extension plate 2 moves, it is held on the inner wall of the nylon rod 1 to support the inner wall of the nylon rod 1. After the support rod 13 swings, it is held in the support hole 14 to push the top holding ring 6 out from the surface of the nut 5, and the screw rod 8 no longer rotates with the nut 5.

[0028] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A safety mechanism, characterized in that: include: A nylon rod (1), the inner wall of which is plugged with a support rod (3); A screw rod (8), a telescopic block (7) is inserted into the surface of the screw rod (8), a connecting rod (9) is fixed to the surface of the telescopic block (7), a top holding ring (6) is fixed to the end of the connecting rod (9), and a nut (5) is screwed to the surface of the support rod (3); and The extension plate (2) is arranged on the surface of the support rod (3).

2. A safety mechanism according to claim 1, characterized in that: The extension plate (2) is movable inside the support rod (3); an insulating pad (4) is sleeved on the surface of the support rod (3); both ends of the screw-connecting rod (8) are screwed inside the support rod (3); and a plurality of push rings (12) are fixed on the surface of the screw-connecting rod (8).

3. A safety mechanism according to claim 2, characterized in that: The extension plates (2) are provided with a plurality of groups, and the surfaces of the plurality of extension plates (2) are connected with force rings (11), the force rings (11) are located inside the support rods (3), and after the screw rods (8) move, the push rings (12) on the surfaces of the screw rods (8) are supported on the surfaces of the force rings (11), so that the extension plates (2) move.

4. A safety mechanism according to claim 3, characterized in that: A spring is provided at the end of the telescopic block (7), and the spring is located inside the screw-connecting rod (8). The spring exerts a pulling force on the telescopic block (7), so that the telescopic block (7) is retracted into the inside of the screw-connecting rod (8).

5. A safety mechanism according to claim 4, characterized in that: The surface of the top holding ring (6) is provided with teeth, and the surface of the nut (5) is provided with teeth, and the teeth on the surface of the top holding ring (6) mesh with the teeth on the surface of the nut (5).

6. A safety mechanism according to claim 5, characterized in that: A supporting rod (13) is hingedly connected to the surface of the connecting rod (9) via a rotating shaft, and a supporting hole (14) is provided on the surface of the screw rod (8), and the supporting rod (13) can be inserted into the supporting hole (14).

7. A hoist backrest wheel, characterized in that: The invention comprises the safety mechanism described in any one of claims 1 to 6 above.

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