Belt type rigging guiding device

Abstract

The utility model relates to a belt type rigging guiding device which comprises a shell, a guiding piece is installed at the bottom of the shell, a guiding opening is formed in the guiding piece, a belt type rigging is arranged in the guiding opening in a penetrating mode in the vertical direction, and one end, stretching out of the guiding opening, of the belt type rigging is connected with a lifting hook. The width of the belt type rigging is matched with the length of the guide opening in the horizontal direction; the guiding part and the shell are in sliding fit in the width direction of the belt type rigging, when the belt type rigging is in a vertical state, the guiding part is located at the initial position relative to the shell, and when the belt type rigging is subjected to oblique pulling force, the guiding part deviates in the width direction of the belt type rigging relative to the initial position of the guiding part; a guide part is arranged on the shell, a limiting part is arranged on the guide part, a detection unit matched with the limiting part is arranged on the shell, and when the guide part deviates, the limiting part triggers the detection unit. Whether the belt type rigging is in a cable-stayed stress state or not can be judged conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hoists, in particular to a belt-type rigging guide device. Background Art

[0002] The rigging of existing electric hoists are all chain or wire rope, but not belt type. In the process of designing belt electric hoists, it is found that belt rigging is prone to diagonal tension when in use. When diagonally tensioned, the winding of the belt rigging is affected and the wear of the belt rigging is easily aggravated. In order to prevent the belt rigging from being diagonally tensioned, it is first necessary to detect whether the belt rigging is in a diagonal tension state. Therefore, how to design a guide device for the belt rigging to detect whether the belt rigging is diagonally tensioned is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0003] In view of the defects in the prior art, the technical problem to be solved by the utility model is to provide a belt rigging guide device so as to judge whether the belt rigging is in an oblique tension state.

[0004] In order to solve the above technical problems, the utility model provides a belt rigging guide device, comprising a shell, a guide piece is installed at the bottom of the shell, a guide opening is arranged on the guide piece, the belt rigging is inserted into the guide opening along the vertical direction, one end of the belt rigging extending out of the guide opening is connected with a hook, and the width of the belt rigging is adapted to the length of the guide opening in the horizontal direction; the guide piece and the shell are slidably matched in the width direction of the belt rigging, when the belt rigging is in a vertical state, the guide piece is located at an initial position relative to the shell, and when the belt rigging is subjected to an oblique pulling force, the guide piece is offset relative to its initial position in the width direction of the belt rigging; a limiting portion is arranged on the guide piece, and a detection unit matched with the limiting portion is arranged on the shell, and when the guide piece is offset, the limiting portion triggers the detection unit.

[0005] Preferably, the detection unit includes a first detection unit and a second detection unit. When the guide member is offset in the first direction, the limit portion triggers the first detection unit, and when the guide member is offset in the second direction, the limit portion triggers the second detection unit. The first direction and the second direction are both in the width direction of the belt rigging and in opposite directions.

[0006] Preferably, the first detection unit and the second detection unit are both micro switches, the free end of the movable arm of the first detection unit faces the first direction, and the free end of the movable arm of the second detection unit faces the second direction; the guide member is provided with a limiting portion, which cooperates with the movable arms of the first detection unit and the second detection unit at the same time; or, the guide member is provided with two limiting portions, and the two limiting portions cooperate with the movable arms of the first detection unit and the second detection unit respectively.

[0007] Preferably, when the limiting portion is provided on the guide member, the limiting portion is in a strip shape, and its length direction is arranged along the width direction of the belt rigging, and the movable arms of the first detection unit and the second detection unit are respectively abutted against the two ends of the length direction of the limiting portion.

[0008] Preferably, two reset members are installed on the shell, and the two reset members are respectively abutted against two ends of the sliding direction of the guide member, and when the guide member is at its initial position, the resultant force of the forces applied by the two reset members to the guide member is zero.

[0009] Preferably, the reset member is a spring ejector.

[0010] Preferably, the guide member includes a base, the guide port is provided on the base, and fixing plates are provided on both sides of the base, and the two fixing plates are respectively located on both sides of the guide port; two sliding grooves are provided on the shell, and the two fixing plates are respectively slidably matched with the two sliding grooves in the width direction of the belt rigging, and in the width direction of the belt rigging, the size of the sliding groove is larger than the size of the fixing plate.

[0011] Preferably, the base includes a mounting plate and a guide seat that are fixedly connected, the guide port passes through the mounting plate and the guide seat, the fixing plate is fixedly connected to the mounting plate, and in the width direction of the belt rigging, the size of the mounting plate is larger than the size of the guide seat and the fixing plate; the shell includes end plates located at both ends of the belt rigging in the width direction, and the two end plates are provided with a

[0012] The mounting plate passes through a gap, and a distance is left between the guide seat and the fixing plate and the two end plates.

[0013] Preferably, a limiting device is provided on the guide member, and the limiting device includes a trigger rod slidably penetrated on the guide member, and one end of the trigger rod extends out of the guide member to form a trigger head, and the trigger head is located on the movement trajectory of the hook; the limiting device also includes a limit switch installed on the guide member, and the limit switch cooperates with the trigger rod. When the trigger head abuts against the hook, the trigger rod triggers the limit switch.

[0014] Preferably, there are two limiting devices, and the trigger heads of the two limiting devices have different lengths.

[0015] The utility model has the following beneficial effects: the width of the belt sling is adapted to the length of the guide opening in the horizontal direction, and when the belt sling is subjected to an oblique tension, the belt sling applies a horizontal force to the guide member, causing the guide member to slide relative to the housing, resulting in the guide member being offset in the width direction of the belt sling, and when the belt sling is in a vertical state, the force direction thereof is along the vertical direction, and the guide member is not subjected to a horizontal force and can be maintained in its initial position. When the guide member is offset, the limiting part on the guide member also moves synchronously, thereby triggering the detection unit, and the detection unit can send a signal that the belt sling is in an oblique tension state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a structural schematic diagram of a belt-type rigging guide device according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of

[0019] Figure 3 It is an exploded view of the connection structure between the guide member and the fixed block of the embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the limit part and the detection unit of an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the guide member and the fixed block of an embodiment of the utility model;

[0022] Figure 6 The figure is a schematic diagram of the connection structure between the guide member and the reset member according to an embodiment of the utility model.

[0023] Reference numerals:

[0024] 1-housing; 11-lifting ring; 12-main body; 13-end plate; 131-notch; 14-fixing block; 141-insertion block; 142-slide groove; 2-guide member; 21-guide opening; 22-mounting plate; 23-guide seat; 24-fixing plate; 3-belt rigging; 31-hook; 4-first detection unit; 5-second detection unit; 6-reset member; 7-trigger rod; 8-limit switch. DETAILED DESCRIPTION

[0025] Here, it should be noted that the functions and methods involved in the present invention are merely conventional adaptive applications of the prior art. Therefore, the improvement of the present invention on the prior art is essentially the connection relationship between the hardware, rather than the functions and methods themselves. That is, although the present invention involves some functions and methods, it does not include improvements to the functions and methods themselves. The description of the functions and methods in the present invention is to better illustrate the present invention so as to better understand the present invention.

[0026] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0027] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, this embodiment provides a belt rigging guide device, including a housing 1, the top of which is connected to a lifting ring 11, which is used to hoist the housing 1 as a whole at a high place for easy use. A guide member 2 is installed at the bottom of the housing 1, and a guide opening 21 is provided on the guide member 2. The belt rigging 3 is vertically inserted into the guide opening 21, and one end of the belt rigging 3 extending out of the guide opening 21 is connected to a hook 31, and the width of the belt rigging 3 is adapted to the length of the guide opening 21 in the horizontal direction. In this embodiment, the belt rigging guide device is a local structure of a belt electric hoist. When the belt electric hoist is in use, it is hoisted at a high place using the lifting ring 11. At this time, the belt rigging 3 naturally droops in the vertical direction, and its hook 31 is used to hoist heavy objects.

[0029] In this embodiment, the housing 1 includes a body 12 and end plates 13 located at both ends of the belt rigging 3 in the width direction. The two end plates 13 are arranged in parallel and spaced apart, and the guide member 2 is installed between the two end plates 13. The housing 1 also includes fixed blocks 14 located on both sides of the guide member 2. The fixed blocks 14 are located between the two end plates 13, and plug blocks 141 are protrudingly provided at both ends of the fixed blocks 14. Sockets that are plugged and fixed with the plug blocks 141 are provided on the end plates 13. The two plug blocks 141 of the same fixed block 14 are plugged and matched with the two sockets respectively, so that the fixed block 14 is fixedly connected between the two end plates 13. In this embodiment, in order to facilitate processing, the fixed block 14 is designed as an independent structure. In practice, the fixed block 14 can also be designed as a structure integrally formed with the body 12.

[0030] The guide member 2 is slidably matched with the housing 1 in the width direction of the belt rigging 3. Specifically, a slide groove 142 is provided on the side of the fixed block 14 close to the guide member 2, and the slide groove 2 is provided through the width direction of the belt rigging 3. The guide member 2 includes a base, which specifically includes a fixedly connected mounting plate 22 and a guide seat 23. The guide opening 21 is provided through the mounting plate 22 and the guide seat 23. A fixing plate 24 is fixedly connected on both sides of the mounting plate 22. The two fixing plates 24 are respectively located on both sides of the guide opening 21. The two fixing plates 24 are slidably matched with the two slide grooves 142 in the width direction of the belt rigging 3. In the width direction of the belt rigging 3, the size of the slide groove 142 is larger than the size of the fixing plate 24, and the size of the mounting plate 22 is larger than the size of the guide seat 23 and the fixing plate 24.

[0031] In this embodiment, when the belt rigging 3 is in a vertical state, the guide member 2 is located at an initial position relative to the shell 1. When the belt rigging 3 is subjected to an oblique pulling force, since the width of the belt rigging 3 and the length of the guide opening 21 in the horizontal direction are adapted, the belt rigging 3 will apply a horizontal force to the guide member 2, causing the guide member 2 to slide relative to the shell 1. At this time, the fixing plate 24 slides in the slide groove 142, and the guide member 2 is offset in the width direction of the belt rigging 3 relative to its initial position; and when the belt rigging 3 is in a vertical state, the force direction thereof is along the vertical direction, and the guide member 2 is not subjected to a horizontal force and can be maintained in the initial position.

[0032] Specifically, a notch 131 is provided on each of the two end plates 13 for the mounting plate 22 to pass through, and a distance is left between the guide seat 23 and the fixing plate 24 and the two end plates 13.

[0033] The mounting plate 22 also slides in the notch 131 accordingly, and the distances between the guide seat 23 and the fixing plate 24 and the end plate 13 can reserve enough space for the sliding of the guide member 2 .

[0034] Furthermore, the present embodiment is also provided with a structure for judging whether the belt rigging 3 is subjected to an oblique tension, so as to control the belt electric hoist to stop working when the belt rigging 3 is subjected to an oblique tension. Specifically, a limit portion is provided on the guide member 2, and a detection unit cooperating with the limit portion is provided on the housing 1. When the guide member 2 is offset, the limit portion triggers the detection unit, and the detection unit sends a signal to the controller of the belt electric hoist to control the power supply device (generally a motor) of the electric hoist to stop working, so as to prevent the belt rigging 3 from working under an oblique tension state.

[0035] In this embodiment, the detection unit includes a first detection unit 4 and a second detection unit 5. When the guide member 2 deviates in the first direction, the limiter triggers the first detection unit 4, and when the guide member 2 deviates in the second direction, the limiter triggers the second detection unit 5. The first direction and the second direction mentioned in this embodiment are both in the width direction of the belt rigging 3 and in opposite directions.

[0036] Specifically, the first detection unit 4 and the second detection unit 5 are both micro switches and are connected to the fixed block 14 by screws. The free end of the movable arm of the first detection unit 4 faces the first direction, and the free end of the movable arm of the second detection unit 5 faces the second direction.

[0037] In this embodiment, only one limiting portion is provided on the guide member 2, which is formed by the portion of the fixed plate 24 located outside the slide groove 142. The fixed plate 24 is in a strip shape. Correspondingly, the limiting portion is also in a strip shape, and its length direction is arranged along the width direction of the belt rigging 3. The two movable arms of the first detection unit 4 and the second detection unit 5 are respectively abutted against the two ends of the length direction of the limiting portion (i.e., the fixed plate 24). In practice, an independent limiting portion structure can also be added to the guide member 2, and its two ends are respectively matched with the movable arms of the first detection unit 4 and the second detection unit 5, such as providing a limiting convex strip arranged parallel to the fixed plate 24 and spaced apart on the guide member 2. In both cases, a limiting portion is provided on the guide member 2, and the limiting portion is simultaneously matched with the movable arms of the first detection unit 4 and the second detection unit 5.

[0038] Of course, in practice, two limiting parts may be provided on the guide member 2 , such as two limiting parts protruding from the guide member 2 to respectively cooperate with the movable arms of the first detection unit 4 and the second detection unit 5 .

[0039] In addition, in practice, only one limit part and one detection unit may be provided. The detection unit may be a proximity sensor switch, such as an ultrasonic proximity sensor switch, which can sense whether the limit part on the guide member is in the initial position. If the ultrasonic proximity sensor switch can detect the limit part, it is assumed that it has not been offset, and when the limit part cannot be detected, it is assumed that it has been offset. When the belt sling 3 is subjected to an oblique pulling force and the guide member 2 is offset, the limit part is also offset accordingly. At this time, whether it is offset in the first direction or in the second direction, the ultrasonic proximity sensor switch cannot sense its existence. At this time, the ultrasonic proximity sensor switch will send a signal to the controller.

[0040] Furthermore, a reset member 6 is respectively installed on the two end plates 13 of the housing 1, and the two reset members 6 are respectively in contact with the two ends of the sliding direction of the guide member 2, and when the guide member 2 is in its initial position, the resultant force of the two reset members 6 on the guide member 2 is zero. Specifically, when the guide member 2 is in the initial position, the forces applied to the guide member 2 by the two reset members 6 are both zero, that is, the reset members 6 are in a free state. Of course, in practice, when the guide member 2 is in the initial position, the two reset members 6 can also be in a compressed state, but the elastic forces generated by the compression of the two reset members 6 are of the same magnitude and opposite directions, so that the resultant force of the forces applied to the guide member 2 by the two reset members 6 is zero.

[0041] In this embodiment, the reset member 6 is specifically a spring ejector pin, which is threadedly connected to the end plate 13 , and the reset member 6 abuts against the guide seat 23 .

[0042] Furthermore, two limit devices are arranged on the guide member 2, and the limit device includes a trigger rod 7 that is slidably penetrated on the mounting plate 22 of the guide member 2, and the trigger rod 7 extends out of one end of the guide member 2 to form a trigger head, and the trigger head is located on the movement track of the hook 31. The limit device also includes a limit switch 8 installed on the guide seat 23, and the limit switch 8 is specifically a micro switch, and its movable arm abuts against the trigger rod 7. When the trigger head abuts against the hook 31 and continues to apply pressure to the trigger rod 7, the trigger rod 7 moves in the direction of the limit switch 8 and triggers the limit switch 8. At this time, the limit switch 8 sends a signal to the controller of the belt electric hoist, and the controller controls the motor of the belt electric hoist to stop working to prevent the hook 31 from continuing to move upward and damaging the housing 1, thereby limiting the maximum rising position of the hook 31. In this embodiment, the lengths of the trigger heads of the trigger rods 7 of the two limit devices are different, so as to play a double limit protection role to prevent the limit failure caused by the failure of one of the limit switches 8.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A belt rigging guide device, characterized in that: include: A shell, a guide piece is installed at the bottom of the shell, a guide opening is arranged on the guide piece, a belt sling is passed through the guide opening in a vertical direction, a hook is connected to one end of the belt sling extending out of the guide opening, and a width of the belt sling is adapted to a length of the guide opening in a horizontal direction; The guide member is slidably matched with the shell in the width direction of the belt rigging. When the belt rigging is in a vertical state, the guide member is located at an initial position relative to the shell. When the belt rigging is subjected to an oblique pulling force, the guide member is offset relative to its initial position in the width direction of the belt rigging. A limiting portion is arranged on the guide member, and a detection unit cooperating with the limiting portion is arranged on the housing. When the guide member deviates, the limiting portion triggers the detection unit.

2. The belt rigging guide device according to claim 1, characterized in that: The detection unit includes a first detection unit and a second detection unit. When the guide member deviates in the first direction, the limiter triggers the first detection unit. When the guide member deviates in the second direction, the limiter triggers the second detection unit. The first direction and the second direction are both in the width direction of the belt rigging and are in opposite directions.

3. The belt-type rigging guide device according to claim 2, characterized in that: The first detection unit and the second detection unit are both micro switches, the free end of the movable arm of the first detection unit faces the first direction, and the free end of the movable arm of the second detection unit faces the second direction; The guide member is provided with a limiting portion, which cooperates with the movable arms of the first detection unit and the second detection unit at the same time; or, the guide member is provided with two limiting portions, which cooperate with the movable arms of the first detection unit and the second detection unit respectively.

4. The belt rigging guide device according to claim 3, characterized in that: When the limiting portion is provided on the guide member, the limiting portion is in a strip shape, and its length direction is provided along the width direction of the belt rigging, and the movable arms of the first detection unit and the second detection unit are respectively abutted against both ends of the length direction of the limiting portion.

5. The belt-type rigging guide device according to claim 1, characterized in that: Two reset members are installed on the shell, and the two reset members are respectively in contact with the two ends of the guide member in the sliding direction, and when the guide member is at its initial position, the resultant force of the forces applied by the two reset members to the guide member is zero.

6. The belt rigging guide device according to claim 5, characterized in that: The reset element is a spring ejector pin.

7. The belt rigging guide device according to claim 1, characterized in that: The guide member comprises a base, the base is provided with the guide opening, and both sides of the base are provided with fixing plates, and the two fixing plates are respectively located on both sides of the guide opening; Two slide grooves are arranged on the shell, and the two fixing plates are respectively slidably matched with the two slide grooves in the width direction of the belt rigging, and in the width direction of the belt rigging, the size of the slide groove is larger than the size of the fixing plate.

8. The belt rigging guide device according to claim 7, characterized in that: The base comprises a mounting plate and a guide seat which are fixedly connected, the guide opening passes through the mounting plate and the guide seat, the fixing plate is fixedly connected to the mounting plate, and in the width direction of the belt rigging, the size of the mounting plate is larger than the size of the guide seat and the fixing plate; The shell includes end plates located at both ends of the belt rigging in the width direction, and the two end plates are both provided with notches for the mounting plate to pass through, and a distance is left between the guide seat and the fixing plate and the two end plates.

9. The belt rigging guide device according to claim 1, characterized in that: A limiting device is provided on the guide member, the limiting device comprises a trigger rod slidably penetrated on the guide member, one end of the trigger rod extends out of the guide member to form a trigger head, and the trigger head is located on the motion track of the hook; The limit device also includes a limit switch installed on the guide member, and the limit switch cooperates with the trigger rod. When the trigger head abuts against the hook, the trigger rod triggers the limit switch.

10. The belt rigging guide device according to claim 9, characterized in that: The number of the limiting devices is two, and the lengths of the trigger heads of the two limiting devices are different.

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