Anti-clamping hand tool of hoister

Abstract

The utility model discloses an elevator hand-clamping-preventing tool, and relates to the technical field of high-altitude transportation tool equipment, the elevator hand-clamping-preventing tool comprises an elevator body and a buffer assembly, one side of the elevator body is provided with a traction piece, a limiting blocking piece is connected to the traction piece in a sleeved mode, and the end, away from the elevator body, of the traction piece is connected with a hoisting part; the buffering assembly comprises a flexible piece, and the flexible piece is connected to the traction piece in a sleeving mode and located between the limiting blocking piece and the hoisting part. According to the technical scheme, the traction piece is sleeved with the buffering assembly, the buffering assembly comprises the flexible piece, and the flexible piece is located between the limiting blocking piece and the hoisting part, so that it is ensured that in the lifting process of the hoisting part, if an operator mistakenly touches the limiting blocking piece, the flexible piece can provide the buffering effect, the risk of hand clamping accidents is reduced, and the safety of the hoisting part is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-altitude transportation tool equipment, and particularly relates to a manual loading device for preventing the clamping of a hoist. Background Art

[0002] In the maintenance operation of wind power generation, the chain hoist plays a crucial role, especially inside the nacelle of a wind turbine generator. They are responsible for handling heavy materials and replacing equipment. These hoist devices usually consist of key components such as a mounting frame, guide rails, and an electric hoist.

[0003] In actual operation, due to the fluctuation of wind speed and the diversity of material volumes, interference may occur during the upward movement of the material in the hoisting part (i.e., when passing through the load hole), which requires manual adjustment by the operator to solve the problem. During this process, due to the need for frequent manual adjustment, the operator may face the risk of pinching their hands. To solve the above problems, in related technologies, a hand pinch prevention device is often set. The hand pinch prevention device usually includes a limit stop and a chain. By installing a limit stop on the chain, the limit stop can prevent the hook part from rising when it reaches the set position, so as to avoid equipment damage or installation accidents. However, this setting method may bring a risk of injury due to misoperation or accidental contact with the limit stop. Summary of the Utility Model

[0004] The main purpose of the utility model is to propose a manual loading device for preventing the clamping of a hoist, aiming to solve the technical problem of how to buffer the accidental injury risk brought by the hand pinch prevention device in related technologies.

[0005] To achieve the above purpose, the manual loading device for preventing the clamping of a hoist proposed by the utility model is a manual loading device for preventing the clamping of a hoist, which is applied to the nacelle hoist of a wind turbine generator. The nacelle hoist includes a limit stop and a hoisting part. In one embodiment, the manual loading device for preventing the clamping of a hoist includes:

[0006] A hoist body, with a traction member provided on one side of the hoist body. The limit stop is sleeved on the traction member, and the end of the traction member away from the hoist body is connected to the hoisting part;

[0007] A buffer assembly, which includes a flexible member. The flexible member is sleeved on the traction member and is located between the limit stop and the hoisting part.

[0008] In one embodiment, the buffer assembly further includes an elastic member. The elastic member is sleeved on the outside of the traction member, and one end of the flexible member is connected to the elastic member.

[0009] In one embodiment, the buffer assembly further includes a connecting member. The two ends of the connecting member are respectively connected to the elastic member and the flexible member.

[0010] In one embodiment, the buffer assembly includes two elastic members and two connecting members. The two elastic members are respectively sleeved on the traction member, and the two connecting members are sleeved on the traction member. One of the elastic members is located between the limit stop and one of the connecting members, and the other elastic member is located between the other connecting member and the lifting part. The flexible member is located between the two connecting members.

[0011] In one embodiment, one of the connecting members includes a first base. A first protrusion and a second protrusion are respectively formed on two sides of the first base. The first protrusion is connected to one end of one of the elastic members, and one end of the flexible member is sleeved on the second protrusion.

[0012] The other connecting member includes a second base. A third protrusion and a fourth protrusion are respectively formed on two sides of the second base. The third protrusion is connected to the other end of the flexible member, and one end of the other elastic member is sleeved on the fourth protrusion.

[0013] In one embodiment, the first protrusion and the second protrusion are integrally formed, and the third protrusion and the fourth protrusion are integrally formed.

[0014] In one embodiment, an internal thread is provided at one end of the flexible member facing the elastic member, and an external thread adapted to the internal thread is provided at one end of the elastic member facing the flexible member. The flexible member is threadedly connected to the elastic member.

[0015] In one embodiment, a groove is provided at one end of the flexible member facing the elastic member, and an adhesive member is installed in the groove. The elastic member is adhered to the groove.

[0016] In one embodiment, a receiving groove is provided on one side of the hoist body, and dot-shaped braking contacts are provided in the receiving groove.

[0017] In one embodiment, the shape of the receiving groove is adapted to the shape of the limit stop.

[0018] The technical solution of the present utility model is to sleeved a buffer assembly on the traction member. The buffer assembly includes a flexible member, and the flexible member is located between the limit stop and the lifting part, so as to ensure that during the rising process of the lifting part, if the operator accidentally touches the limit stop, the flexible member can provide a buffering effect, reduce the risk of pinching accidents, and improve its safety. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 Structural schematic diagram of the anti-pinch manual loading device for the hoist provided by the present invention;

[0021] Figure 2 Exploded view of the anti-pinch manual loading device for the hoist provided by the present invention;

[0022] Figure 3 Top view of the anti-pinch manual loading device for the hoist provided by the present invention.

[0023] Explanation of the reference numerals in the drawings:

[0024] 1000, anti-pinch manual loading device for the hoist; 1, hoist body; 11, traction member; 12, limit flap; 13, lifting part; 14, receiving groove; 2, buffer assembly; 21, flexible member; 22, elastic member; 23, connecting member; 231, first base; 232, first protrusion; 233, second protrusion; 234, second base; 235, third protrusion; 236, fourth protrusion.

[0025] The realization of the purpose, functional characteristics and advantages of the present invention will be further described in conjunction with the embodiments with reference to the drawings. Specific embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0027] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] The utility model provides a manual device for preventing clamping of a hoist.

[0030] See also Figures 1 to 3 In one embodiment of the utility model, the hoist anti-pinch manual device is applied to the wind turbine nacelle hoist, the nacelle hoist includes a limit baffle 12 and a hoisting part 13, the hoist anti-pinch manual device includes a hoist body 1 and a buffer assembly 2, a traction member 11 is provided on one side of the hoist body 1, the limit baffle 12 is sleeved on the traction member 11, and the end of the traction member 11 away from the hoist body 1 is connected to the hoisting part 13; the buffer assembly 2 includes a flexible member 21, the flexible member 21 is sleeved on the traction member 11, and is located between the limit baffle 12 and the hoisting part 13.

[0031] In this embodiment, the manual device for preventing pinching of the hoist is applied to the nacelle hoist of the wind turbine generator set. The buffer assembly 2 is used to prevent injury to the operator during the hoisting process. The traction member 11 is used to carry and lift the load. The hoisting part 13 is used to carry the load transported by the hoist and is connected to the driving system of the hoist through a chain. Accordingly, the flexible member 21 can be in the form of a rubber pad or a flexible rubber tube, and the traction member 11 is a chain. Preferably, the flexible member 21 is selected as a flexible rubber tube here, and the connection method between the flexible member 21 and the traction member 11 can be achieved by directly sleeve the flexible member 21 on the traction member 11, and can also be achieved by arranging a metal ring on the chain so that the flexible member 21 is sleeved on the metal ring for fixing, which is not limited here.

[0032] The technical solution of the utility model is to provide a buffer component 2 on the traction member 11, and the buffer component 2 includes a flexible member 21, and the flexible member 21 is located between the limit baffle 12 and the hoisting part 13 to ensure that during the rising process of the hoisting part 13, if the operator accidentally touches the limit baffle 12, the flexible member 21 can provide a buffering effect, reduce the risk of hand pinching accidents, and improve its safety.

[0033] In an embodiment of the present utility model, the buffer assembly 2 further includes an elastic member 22. The elastic member 22 is sleeved outside the traction member 11, and one end of the flexible member 21 is connected to the elastic member 22.

[0034] In this embodiment, the elastic member 22 can be deformed when stressed to achieve a buffering effect. The connection between the elastic member 22 and the flexible member 21 can be connected by direct socketing, bolts, buckles or fasteners, etc., which is not limited here. The above setting method combines the elastic member 22 and the flexible member 21 to provide additional buffering capacity. If an emergency stop occurs during the hoist's ascent, the combination of the elastic member 22 and the flexible member 21 can effectively buffer the harm to the operator.

[0035] In an embodiment of the present utility model, the buffer assembly 2 further includes a connecting member 23. The two ends of the connecting member 23 are respectively connected to the elastic member 22 and the flexible member 21.

[0036] In this embodiment, the connecting member 23 is used as an intermediate member to combine the elastic member 22 and the flexible member 21. Correspondingly, the connecting member 23 can be connected to the elastic member 22 and the flexible member 21 by bolts, buckles, etc. respectively. The above setting method integrates the buffering capacities of the two, can provide more effective shock absorption, and at the same time helps to maintain the stable positions of the elastic member 22 and the flexible member 21 on the traction member 11.

[0037] In an embodiment of the present utility model, the buffer assembly 2 includes two elastic members 22 and two connecting members 23. The two elastic members 22 are respectively sleeved on the traction member 11, and the two connecting members 23 are sleeved on the traction member 11. One of the elastic members 22 is located between the limit stop 12 and one of the connecting members 23, and the other elastic member 22 is located between the other connecting member 23 and the lifting part 13. The flexible member 21 is located between the two connecting members 23.

[0038] In this embodiment, in order to improve the buffering pre-tension of the anti-pinch manual loading device, two elastic members 22 are provided for buffering. The elastic member 22 is installed outside the traction member 11 by direct socketing. Here, the connecting member 23 can be in the form of a flange or a metal ring, which is not limited here. The above setting method enhances the buffering performance, disperses the direct impact force, and reduces the direct impact on the operator's misoperation.

[0039] In an embodiment of the present utility model, one of the connecting members 23 includes a first base 231. First protrusions 232 and second protrusions 233 are respectively formed on both sides of the first base 231. The first protrusion 232 is connected to one end of one of the elastic members 22, and the second protrusion 233 is sleeved on one end of the flexible member 21;

[0040] Wherein, the other connecting member 23 includes a second base 234. On both sides of the second base 234, a third protrusion 235 and a fourth protrusion 236 are respectively formed. The third protrusion 235 is connected to the other end of the flexible member 21, and the fourth protrusion 236 sleeves one end of the other elastic member 22.

[0041] In this embodiment, the first protrusion 232 and the fourth protrusion 236 are used to connect the elastic member 22, and the second protrusion 233 and the third protrusion 235 are used to connect the flexible member 21. The above arrangement effectively fixes the positions of the elastic member 22 and the flexible member 21, provides clear connection points, ensures the precise positioning of the elastic member 22 and the flexible member 21 on the connecting member 23, improves the connection strength, further optimizes the buffering performance, and provides more effective shock absorption.

[0042] In an embodiment of the present utility model, the first protrusion 232 and the second protrusion 233 are integrally formed, and the third protrusion 235 and the fourth protrusion 236 are integrally formed.

[0043] In this embodiment, the integrally formed form helps to provide a more stable structure, reduces the deformation and displacement of the connecting member 23 when stressed, reduces the assembly steps, and improves the strength and durability.

[0044] In an embodiment of the present utility model, an internal thread is provided at one end of the flexible member 21 facing the elastic member 22, and an external thread adapted to the internal thread is provided at one end of the elastic member 22 facing the flexible member 21. The flexible member 21 and the elastic member 22 are threadedly connected.

[0045] In this embodiment, the threaded connection method can withstand greater tensile and torsional forces, allows the relative position between the flexible member 21 and the elastic member 22 to be adjusted within a certain range to adapt to different installation requirements. At the same time, the combination of the flexible member 21 and the elastic member 22 enables the anti-pinch manual installation to have good buffering performance.

[0046] In an embodiment of the present utility model, a groove is provided at one end of the flexible member 21 facing the elastic member 22, and an adhesive member is installed in the groove. The elastic member 22 is bonded in the groove.

[0047] In this embodiment, the bonding method of the flexible member 21 and the elastic member 22 helps to ensure the firm connection between the two, simplifies the assembly process, eliminates the need for complex mechanical fasteners, and enables the anti-pinch manual installation to have good buffering performance.

[0048] In an embodiment of the present utility model, a receiving groove 14 is provided on one side of the elevator body 1, and a dot-shaped braking contact is provided in the receiving groove 14. The dot-shaped braking contact is electrically connected to the limit stop 12.

[0049] In this embodiment, the receiving groove 14 is used to install the dot-shaped braking contact and provide positioning for the limit retaining piece 12. The dot-shaped braking contact is used to provide precise braking control to ensure that the hoist stops accurately at a predetermined position. Through the above setting method, the dot-shaped braking contact is electrically connected to the limit retaining piece 12, which can reduce the impact and vibration when the hoist stops.

[0050] In an embodiment of the present utility model, the shape of the receiving groove 14 is adapted to the shape of the limit retaining piece 12.

[0051] In this embodiment, the above setting method provides stable positioning for the limit retaining piece 12 to ensure that the limit retaining piece 12 can contact the dot-shaped braking contact in the receiving groove 14 during the ascending process of the hoist, so as to ensure that the hoist stops accurately at a specific position.

[0052] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A manual hoisting device for preventing pinching of a hoist, applied to a nacelle hoist of a wind turbine generator set, the nacelle hoist comprising a limit stopper (12) and a hoisting part (13), characterized in that: The hoist anti-pinch manual device comprises: A hoist body (1), wherein a traction member (11) is provided on one side of the hoist body (1), the limit stopper (12) is sleeved on the traction member (11), and one end of the traction member (11) away from the hoist body (1) is connected to the hoisting portion (13); A buffer component (2), the buffer component (2) comprising a flexible member (21), the flexible member (21) being sleeved on the traction member (11) and located between the limit stopper (12) and the hoisting portion (13).

2. The anti-pinch manual device for hoisting machine according to claim 1, characterized in that: The buffer component (2) further comprises an elastic member (22), wherein the elastic member (22) is sleeved on the outside of the traction member (11), and one end of the flexible member (21) is connected to the elastic member (22).

3. The anti-pinch manual device for hoisting machine as claimed in claim 2, characterized in that: The buffer assembly (2) further comprises a connecting member (23), and two ends of the connecting member (23) are respectively connected to the elastic member (22) and the flexible member (21).

4. The anti-pinch manual device for hoisting machine as claimed in claim 3 is characterized in that: The buffer assembly (2) comprises two elastic members (22) and two connecting members (23), the two elastic members (22) are respectively sleeved on the traction member (11), the two connecting members (23) are sleeved on the traction member (11), one of the elastic members (22) is located between the limit stopper (12) and one of the connecting members (23), the other of the elastic members (22) is located between the other of the connecting members (23) and the hanging part (13), and the flexible member (21) is located between the two connecting members (23).

5. The anti-pinch manual device for hoisting machine as claimed in claim 4, characterized in that: One of the connecting members (23) comprises a first base (231), and two sides of the first base (231) respectively form a first protrusion (232) and a second protrusion (233), the first protrusion (232) is connected to one end of one of the elastic members (22), and the second protrusion (233) is sleeved on one end of the flexible member (21); The other connecting member (23) comprises a second base (234), and a third protrusion (235) and a fourth protrusion (236) are respectively formed on two sides of the second base (234), the third protrusion (235) is connected to the other end of the flexible member (21), and the fourth protrusion (236) is sleeved on one end of the other elastic member (22).

6. The anti-pinch manual device for hoisting machine as claimed in claim 5, characterized in that: The first protrusion (232) and the second protrusion (233) are integrally formed, and the third protrusion (235) and the fourth protrusion (236) are integrally formed.

7. The anti-pinch manual device for hoisting machine as claimed in claim 2, characterized in that: An end of the flexible member (21) facing the elastic member (22) is provided with an internal thread, and an end of the elastic member (22) facing the flexible member (21) is provided with an external thread matching the internal thread. The flexible member (21) is threadably connected to the elastic member (22).

8. The anti-pinch manual device for hoisting machine as claimed in claim 2, characterized in that: A groove is formed at one end of the flexible member (21) facing the elastic member (22), an adhesive member is installed in the groove, and the elastic member (22) is bonded in the groove.

9. The manual device for preventing hoisting machine from being clamped according to any one of claims 1 to 8, characterized in that: A receiving groove (14) is provided on one side of the elevator body (1), and a point-shaped braking contact is provided in the receiving groove (14), and the point-shaped braking contact is electrically connected to the limit stopper (12).

10. The anti-pinch manual device for hoist according to claim 9, characterized in that: The shape of the containing groove (14) is adapted to the shape of the limiting stopper (12).

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