Lifting mechanism with improved quick locking structure

Abstract

The utility model discloses a lifting mechanism with an improved quick locking structure, and belongs to the field of lifting equipment. According to the lifting mechanism, a lifting chain is arranged in a machine box in a transmission mode, one end of the lifting chain is fixedly connected with the machine box through a rapid locking mechanism, the rapid locking mechanism comprises a containing cavity, the containing cavity is located in the machine box, the lower end of the containing cavity is open and exposed out of the machine box, and two sections of lifting chain rings are contained in the containing cavity; the locking piece is inserted between the lifting chains, and the upper side and the lower side of the locking piece are each provided with at least one lifting chain ring. By resetting the case and adopting a simple structure, the lifting chain can be quickly locked, and the locking stability can be ensured during long-time working; and meanwhile, by means of the mode, mounting and dismounting are extremely simple, the assembly efficiency of a factory can be effectively improved, the labor cost is reduced for large-scale assembly, the qualified rate of products is increased, and meanwhile the service life of the lifting mechanism is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of lifting equipment, in particular to a lifting mechanism with an improved quick locking structure. Background Art

[0002] Lifting is an industrial process of transporting machinery or other objects from one place to another. Most lifting machines start a vertical or vertical and horizontal working stroke after the spreader picks up the material, unloads after reaching the destination, and then travels to the material picking location to complete a working cycle, and then performs a second lifting. Lifting machines generally lift or lift and move heavy objects through a lifting hook or other picking device.

[0003] The hook is often suspended on the wire rope or chain of the lifting mechanism with the help of pulleys and other components. In electric hoists, chains are usually used as connecting carriers. The chain is composed of multiple rings connected end to end. When lifting, it needs to be lifted slowly. When descending, the chain will accelerate under the action of its own gravity. The connection position between the chain and the gear box will frequently collide, resulting in unstable connection. At the same time, this instability will also reduce the lifting accuracy.

[0004] Therefore, in view of the above problems, the present application aims to provide a lifting mechanism with an improved quick locking structure. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a lifting mechanism with an improved quick locking structure.

[0006] The technical solution of the utility model is: a lifting mechanism with an improved quick locking structure, comprising:

[0007] A chassis, wherein a lifting chain is provided for transmission inside the chassis, one end of the lifting chain is fixedly connected to the chassis through a quick locking mechanism, and the other end of the lifting chain is connected to a lifting drive mechanism provided in a working chamber of the chassis, the middle part of the lifting chain is located outside the chassis, and under the drive of the lifting drive mechanism, the length of the lifting chain outside the chassis becomes smaller or larger, and at the same time, a lifting hook is connected to the lifting chain through a movable pulley; wherein:

[0008] The quick locking mechanism comprises:

[0009] An accommodating chamber, the accommodating chamber is located in the chassis, and the lower end of the accommodating chamber is open and exposed from the chassis, and the accommodating chamber accommodates at least two lifting chain links; and

[0010] A locking member is inserted between the lifting chains, and has at least one lifting chain ring on both the upper and lower sides of the locking member, and the corresponding lifting chain ring is defined as a locking chain ring when inserted.

[0011] Further, the locking member is arranged in a U shape, and locking chain links are arranged vertically in the U-shaped hole, and the lifting chain links are clamped on the upper and lower sides of the U-shaped hole. The outer shape of the lifting chain link has three parameters: length, width, and height. The width direction is smaller than the U-shaped hole, and the length direction is larger than the U-shaped hole.

[0012] Further, a locking channel is arranged on the side wall corresponding to the accommodation cavity, and the locking member is inserted into the locking channel. This ensures the stable arrangement of the locking member.

[0013] Further, the locking member is inserted horizontally or obliquely from top to bottom. This can prevent accidents caused by the dropping of the locking member. Generally, the inclination angle is controlled within 5 degrees, and a slight inclination is sufficient.

[0014] Further, the locking member is inserted from the working cavity towards the accommodation cavity. After insertion, the distance between the locking member and the lifting chain in the working cavity is smaller than the length of the locking member. Even if the locking member moves, it can only move towards the working cavity, and then touches the lifting chain. Due to the length limitation, it is still clamped on the locking chain link, ensuring the quality of locking.

[0015] Further, the lifting chain includes a plurality of annular lifting chain links, which are connected end to end in sequence, and the planes where two adjacent lifting chain links are located are perpendicular to each other. The end connected to the quick locking mechanism is called the fixed end, the end connected to the lifting driving mechanism is called the free end, and the middle is connected to the lifting hook through a movable pulley. At the same time, the locking chain link can make a certain buffer along the U-shaped hole until it touches the upper and lower lifting chain links, which can effectively improve safety and avoid safety accidents.

[0016] Further, the lower end of the accommodation cavity is arranged in a cross shape. This facilitates the smooth insertion of the lifting chain.

[0017] Further, the lifting driving mechanism includes: a lifting motor, the output shaft of the lifting motor is connected to a lifting shaft, a sprocket is arranged on the lifting shaft, and the sprocket engages with the lifting chain. This realizes the lifting of the lifting chain.

[0018] Further, a connecting housing is arranged above the lifting hook, a movable pulley is arranged in the connecting housing, and the lifting chain is wound around the movable pulley. This realizes the lifting of the lifting hook.

[0019] Further, a safety lock is arranged at the opening of the hook body of the lifting hook. The safety lock includes:

[0020] A connecting ear, the connecting ear is fixed on the hook body, and the middle part of the connecting ear is a through hole;

[0021] A safety shrapnel, the upper end of the safety shrapnel is rotatably connected to a connecting ear through a connecting shaft, the lower end of the safety shrapnel contacts the hook body, and the safety shrapnel covers the opening of the hook body;

[0022] A return spring, the return spring is arranged between the hook body and the safety shrapnel, and always makes the lower end of the safety shrapnel contact the hook body. When an external force acts, the opening is opened, and when the external force is lost, the opening is covered, which can effectively improve safety.

[0023] Furthermore, an arc-shaped notch is provided at the lower end of the safety shrapnel, and the arc-shaped notch is arranged in cooperation with the hook body. This ensures the stable setting of the safety shrapnel.

[0024] The beneficial technical effects of the present utility model are: through the re-setting of the chassis, the quick locking of the lifting chain is realized through a simple structure, and the locking stability can also be ensured during long-term operation; at the same time, this method is extremely simple for installation and disassembly, which can effectively improve the assembly efficiency of the factory, reduce the labor cost for large-scale assembly, improve the qualification rate of products, and also ensure the service life of the lifting mechanism. Description of the Drawings

[0025] Figure 1 is an overall schematic diagram of a lifting mechanism with an improved quick locking structure.

[0026] Figure 2 is an overall schematic diagram of the quick locking mechanism.

[0027] Figure 3 is Figure 2 a cross-sectional view of

[0028] Figure 4 is a cross-sectional view of the accommodation cavity.

[0029] Figure 5 is a schematic diagram of the operation of the quick locking mechanism.

[0030] Figure 6 is a schematic diagram of the lifting hook.

[0031] Wherein:

[0032] 1. Chassis, 2. Lifting chain, 21. Lifting chain link, 22. Locking chain link,

[0033] 3. Quick locking mechanism, 31. Accommodation cavity, 32. Locking member, 33. Locking channel,

[0034] 4. Working cavity,

[0035] 5. Lifting hook,

[0036] 6. Connecting housing,

[0037] 7. Safety lock, 71. Connecting ear, 72. Safety spring, 73. Arc-shaped notch. DETAILED DESCRIPTION

[0038] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0039] See attached Figures 1-6 The lifting mechanism with improved quick locking structure shown comprises:

[0040] A chassis 1 is provided with a lifting chain 2 for transmission inside the chassis 1. One end of the lifting chain 2 is fixedly connected to the chassis 1 through a quick locking mechanism 3. The other end of the lifting chain 2 is connected to a lifting drive mechanism provided in a working chamber 4 of the chassis 1. The middle part of the lifting chain 2 is located outside the chassis 1. Under the drive of the lifting drive mechanism, the length of the lifting chain 2 outside the chassis 1 becomes smaller or larger. At the same time, a lifting hook 5 is connected to the lifting chain 2 through a movable pulley; wherein:

[0041] The quick locking mechanism 3 comprises:

[0042] An accommodating chamber 31, the accommodating chamber 31 is located in the chassis 1, and the lower end of the accommodating chamber 31 is open and exposed from the chassis 1, and the accommodating chamber 31 accommodates at least two lifting chain rings 21; and

[0043] The locking member 32 is inserted between the lifting chains 2 , and there is at least one lifting chain ring 21 on both the upper and lower sides of the locking member 32 , and the corresponding lifting chain ring 21 is defined as the locking chain ring 22 when inserted.

[0044] Furthermore, the locking member 32 is arranged in a U-shape, and the locking chain ring 22 is arranged in the upper and lower parts of the U-shaped hole, and the lifting chain ring 21 is clamped on the upper and lower sides of the U-shaped hole. The lifting chain ring 21 has three parameters of length, width and height, and the width direction is smaller than the U-shaped hole, and the length direction is larger than the U-shaped hole.

[0045] Furthermore, a locking channel 33 is provided on the side wall corresponding to the accommodating cavity 31, and the locking member 32 is inserted into the locking channel 33, so that the locking member 32 is stably arranged.

[0046] Furthermore, the locking member 32 is inserted horizontally or tilted from top to bottom to avoid accidents caused by the locking member 32 falling off. Generally, the angle of the tilt setting is controlled within 5 degrees, and a slight tilt is sufficient.

[0047] Furthermore, the locking member 32 is inserted from the working chamber 4 towards the receiving chamber 31. After insertion, the distance between the locking member 32 and the lifting chain 2 in the working chamber 4 is less than the length of the locking member 32. Even if the locking member 32 moves, it can only move towards the working chamber 4, and then touches the lifting chain 2. Due to the length limitation, it is still clamped on the locking link 22, ensuring the quality of locking.

[0048] Furthermore, the lifting chain 2 includes a plurality of annular lifting links 21, which are connected end to end in sequence, and the planes of two adjacent lifting links 21 are perpendicular to each other. The end connected to the quick locking mechanism 3 is called the fixed end, and the end connected to the lifting driving mechanism is called the free end. The middle is connected to the lifting hook 5 through a movable pulley. At the same time, the locking link 22 can make a certain buffer along the U-shaped hole until it touches the upper and lower lifting links 21, which can effectively improve safety and avoid safety accidents.

[0049] Furthermore, the lower end of the receiving chamber 31 is arranged in a cross shape, which is convenient for the smooth insertion of the lifting chain 2.

[0050] Furthermore, the lifting driving mechanism includes: a lifting motor, the output shaft of the lifting motor is connected to a lifting shaft, a sprocket is arranged on the lifting shaft, and the sprocket engages with the lifting chain 2, realizing the lifting of the lifting chain 2.

[0051] Furthermore, a connecting housing 6 is arranged above the lifting hook 5, a movable pulley is arranged in the connecting housing 6, and the lifting chain 2 is wound around the movable pulley, realizing the lifting of the lifting hook 5.

[0052] Furthermore, a safety lock 7 is arranged at the opening of the hook body of the lifting hook 5. The safety lock 7 includes:

[0053] A connecting ear 71, the connecting ear 71 is fixed on the hook body, and the middle part of the connecting ear 71 is a through hole;

[0054] A safety spring piece 72, the upper end of the safety spring piece 72 is rotationally connected to the connecting ear 71 through a connecting shaft, the lower end of the safety spring piece 72 contacts the hook body, and the safety spring piece 72 covers the opening of the hook body;

[0055] A return spring, the return spring is arranged between the hook body and the safety spring piece 72, and always makes the lower end of the safety spring piece 72 contact the hook body. When an external force acts, the opening is opened, and when the external force is lost, the opening is covered, which can effectively improve safety.

[0056] Furthermore, an arc-shaped notch 73 is also arranged at the lower end of the safety spring piece 72, and the arc-shaped notch 73 is arranged in cooperation with the hook body, ensuring the stable setting of the safety spring piece 72.

[0057] By resetting the chassis 1, rapid locking of the lifting chain 2 is achieved through a simple structure, and the locking can be ensured to be stable even during long-term operation. At the same time, in this way, the installation and disassembly are extremely simple, which can effectively improve the assembly efficiency of the factory, reduce the labor cost for large-scale assembly, improve the qualification rate of products, and also ensure the service life of the lifting mechanism.

[0058] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An elevating mechanism with an improved quick locking structure, characterized in that, Comprising: A chassis (1), inside which a hoisting chain (2) is drivingly arranged. One end of the hoisting chain (2) is fixedly connected to the chassis (1) through a quick locking mechanism (3), and the other end of the hoisting chain (2) is connected to a hoisting driving mechanism arranged in the working chamber (4) of the chassis (1). The middle part of the hoisting chain (2) is located outside the chassis (1), and driven by the hoisting driving mechanism, the length of the hoisting chain (2) outside the chassis (1) becomes smaller or larger. Meanwhile, a hoisting hook (5) is connected to the hoisting chain (2) through a movable pulley; wherein: The quick locking mechanism (3) includes: a receiving cavity (31), which is located inside the chassis (1), and the lower end of the receiving cavity (31) is open and exposes the chassis (1), and at least two hoisting chain links (21) are received in the receiving cavity (31); and A locking member (32), which is inserted between the hoisting chains (2). There is at least one hoisting chain link (21) on both the upper and lower sides of the locking member (32), and the corresponding hoisting chain link (21) when inserted is defined as a locking chain link (22).

2. The lifting mechanism with an improved quick-locking structure according to claim 1, characterized in that: The locking member (32) is arranged in a U shape, and locking chain links (22) are arranged vertically in the U-shaped hole, and the hoisting chain links (21) are clamped on both the upper and lower sides of the U-shaped hole.

3. The lifting mechanism with an improved quick locking structure according to claim 1, characterized in that: A locking channel (33) is arranged on the corresponding side wall of the receiving cavity (31), and the locking member (32) is inserted into the locking channel (33).

4. The lifting mechanism with an improved quick-locking structure according to claim 1, characterized in that: The locking member (32) is inserted horizontally or obliquely from top to bottom.

5. The lifting mechanism with an improved quick-locking structure according to claim 1, characterized in that: The locking member (32) is inserted from the working chamber (4) towards the receiving cavity (31). After insertion, the distance between the locking member (32) and the hoisting chain (2) in the working chamber (4) is less than the length of the locking member (32).

6. The lifting mechanism with an improved quick locking structure according to claim 1, characterized in that: The hoisting chain (2) includes a plurality of annular hoisting chain links (21), which are connected end to end in sequence, and the planes where two adjacent hoisting chain links (21) are located are perpendicular to each other.

7. The lifting mechanism with an improved quick-locking structure according to claim 1, characterized in that: The lower end of the receiving cavity (31) is arranged in a cross shape.

8. The lifting mechanism with an improved quick locking structure according to claim 1, characterized in that: The hoisting driving mechanism includes: a hoisting motor, the output shaft of the hoisting motor is connected to a hoisting shaft, and a sprocket is arranged on the hoisting shaft, and the sprocket engages with the hoisting chain (2).

9. The lifting mechanism with an improved quick-locking structure according to claim 1, characterized in that: A connecting housing (6) is arranged above the hoisting hook (5), and a movable pulley is arranged inside the connecting housing (6), and the hoisting chain (2) is wound around the movable pulley.

10. The lifting mechanism with an improved quick-locking structure according to claim 1, characterized in that: A safety lock (7) is arranged at the opening of the hook body of the hoisting hook (5), and the safety lock (7) includes: A connecting ear (71) fixed on the hook body, and the middle part of the connecting ear (71) is a through hole; A safety elastic piece (72), the upper end of the safety elastic piece (72) is rotatably connected to the connecting ear (71) through a connecting shaft, the lower end of the safety elastic piece (72) contacts the hook body, and the safety elastic piece (72) covers the opening of the hook body; A return spring, which is arranged between the hook body and the safety elastic piece (72), and always makes the lower end of the safety elastic piece (72) contact the hook body.

Images