Safety belt control device

Abstract

The utility model provides a safety belt control device, which is arranged on a grid above a belt conveyor and comprises a guide rail, a safety belt, a safety belt, a safety belt, a safety belt, a safety belt and a safety belt, and the guide rail is arranged on the grid and extends along a first direction; the shell is provided with a sliding block, and the sliding block is connected to the guide rail in a sleeving mode and can slide along the guide rail in a reciprocating mode; the rope wheel is arranged on the shell and can rotate around the axis of the rope wheel, one end of the safety belt is fixedly connected with the rope wheel, and at least part of the safety belt is wound around the rope wheel; the first motor is arranged on the shell, and the driving end of the first motor is connected with the rope wheel and can drive the rope wheel to rotate in a reciprocating mode. The safety belt attachment body can be provided for the cleaning operation of the belt conveyor, and the safety of the cleaning operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silk-making workshop cleaning, in particular to a safety belt control device. Background Art

[0002] The belt conveyor of the tobacco storage cabinet cloth car needs to be cleaned regularly, including the belt, belt guard and the frame outside the belt guard. The frame height (about 3.9m) is lower than the height of the belt conveyor side plate (about 4.5m). When cleaning the frame, the staff needs to stand above the belt, lean their upper body out of the side plate and bend down to carry out the cleaning operation. According to Article 4.19.1.4 of the "Standardization Specifications for Safety Production of Tobacco Enterprises" YC / T384.2, "Other operations at heights of 2 to 5 meters can be defined as general risk high-altitude operations". The operating point for cleaning the frame is about 4.5 meters from the ground, which is a general risk high-altitude operation. Operators need to wear safety belts when carrying out cleaning operations. However, there is no attachment for wearing safety belts around the cloth belt conveyor, which poses a safety hazard to the cleaning operation. Utility Model Content

[0003] The utility model aims to solve the technical problem that a safety belt cannot be fastened when cleaning the frame of a belt conveyor. The utility model provides a safety belt control device, which can provide a safety belt attachment body for the cleaning operation of the belt conveyor and improve the safety of the cleaning operation.

[0004] In order to solve the above technical problems, the embodiment of the utility model provides a seat belt control device, which is arranged on a grille above a belt conveyor, and the seat belt control device includes:

[0005] A guide rail is provided on the grid, and extends along a first direction;

[0006] A housing is provided with a slider which is sleeved on the guide rail and can slide back and forth along the guide rail;

[0007] A rope wheel is arranged on the housing, the rope wheel can rotate around its own axis, one end of the safety belt is fixedly connected to the rope wheel, and the safety belt is at least partially wound around the rope wheel;

[0008] The first motor is arranged on the housing, and a driving end of the first motor is connected to the rope wheel and can drive the rope wheel to rotate reciprocatingly.

[0009] Optionally, a traveling mechanism is further provided on the shell, and the traveling mechanism is used to drive the control device to move back and forth along the guide rail.

[0010] Optionally, the walking mechanism includes:

[0011] A rack is provided on the grille, and the rack is parallel to the guide rail;

[0012] The gear is arranged on the housing, the gear can rotate around its own axis, and the gear is meshed with the rack;

[0013] The second motor is arranged on the housing, and the driving end of the second motor is connected to the gear. The second motor can drive the gear to rotate reciprocatingly.

[0014] Optionally, the first motor is a stepper motor and the second motor is a servo motor.

[0015] Optionally, the shell includes a bottom plate, the slider is fixedly connected to the bottom plate, a clearance hole is provided on the bottom plate, and the safety belt passes through the clearance hole and extends to the bottom of the shell.

[0016] Optionally, the shell also includes a first side plate and a second side plate, the first side plate and the second side plate are spaced apart along a second direction, the second direction is perpendicular to the first direction, and the casing of the first motor and the casing of the second motor are both fixedly connected to the first side plate.

[0017] Optionally, the first motor is arranged on the outer side of the first side plate, and the second motor is arranged between the first side plate and the second side plate.

[0018] Optionally, an anti-falling mechanism is further included, which is arranged on the second side plate and connected to the rope wheel. When the rope wheel rotates rapidly, the anti-falling mechanism can prevent the rope wheel from rotating.

[0019] Optionally, the anti-fall mechanism comprises:

[0020] A housing fixedly connected to the second side plate;

[0021] An inner ratchet wheel is fixed to the inner wall of the outer shell;

[0022] A fixed shaft is arranged inside the housing, and the axis of the fixed shaft coincides with the axis of the inner ratchet;

[0023] A turntable is sleeved on the fixed shaft, the turntable is connected to the rope wheel, the rope wheel can drive the turntable to rotate, and a connecting part protruding from the outer circumference of the turntable is provided on the outer circumference of the turntable;

[0024] A card needle, one end of which is hinged to the connecting portion, and the other end of which is connected to the outer circumference of the rotating disk through a tension spring, and the tension spring is used to apply elastic force to the card needle so that the card needle is kept close to the outer circumference of the rotating disk;

[0025] When the turntable rotates rapidly, the centrifugal force exerted on the card pin is greater than the elastic force exerted by the tension spring, so that the card pin moves away from the turntable and is inserted between the gear teeth of the inner ratchet to prevent the turntable from rotating.

[0026] Optionally, a circular opening is provided on the second side plate, the projection of the turntable along the second direction falls within the opening, a pin extending along the second direction is provided on the end face of the turntable, a pin hole extending along the second direction is provided on the end face of the rope wheel, and the pin is inserted into the pin hole.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] The present application sets a rope pulley on the grid above the conveyor belt, and connects one end of the safety belt to the rope pulley, so that the rope pulley can be used as an attachment body for hanging the safety belt to fix the safety belt. When the operator needs to perform cleaning operations, he only needs to connect the other end of the safety belt to his body, and the safety belt can be used to ensure the safety of the operation. In addition, the present application also sets a first motor to drive the rope pulley to rotate, so that the safety belt can be retracted and released, so as to lift the operator to different heights for cleaning operations. By setting a guide rail and a slider connected to the shell, the position of the rope pulley can be moved along the extension direction of the guide rail, so that it is convenient for the operator to clean different positions on the conveyor belt frame and improve the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A structural view of a seat belt control device provided by an embodiment of the utility model is shown;

[0030] Figure 2 A cross-sectional view of an anti-fall mechanism provided by an embodiment of the utility model is shown.

[0031] Reference numerals:

[0032] 1. Guide rail, 2. Housing, 3. Pulley, 4. First motor, 5. Rack, 6. Gear, 7. Second motor, 8. First side plate, 9. Second side plate, 10. Clearance hole, 11. Anti-fall mechanism, 12. Housing, 13. Inner ratchet, 14. Fixed shaft, 15. Turntable, 16. Bearing, 17. Connecting part, 18. Pin, 19. Tension spring, 20. Traveling mechanism, 21. Slider, 22. Pin, 23. Bottom plate, 24. Gear. DETAILED DESCRIPTION

[0033] The following is an explanation of the implementation of the present invention by specific specific embodiments. Those skilled in the art can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0034] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0035] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0036] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0037] In the description of this embodiment, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0038] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] The embodiment of the utility model provides a safety belt control device, which is arranged on the grille above the belt conveyor, such as Figure 1 As shown, the seat belt control device includes a guide rail 1, a housing 2, a rope pulley 3 and a first motor 4. The guide rail 1 is arranged on the grid, and the guide rail 1 is arranged along a first direction (such as Figure 1 The housing 2 is provided with a slider 21, which is sleeved on the guide rail 1 and can slide back and forth along the guide rail 1. The sheave 3 is provided on the housing 2, and the sheave 3 can rotate around its own axis. One end of the safety belt is fixedly connected to the sheave 3, and the safety belt is at least partially wound around the sheave 3. The first motor 4 is provided on the housing 2, and its driving end is connected to the sheave 3 and can drive the sheave 3 to rotate back and forth.

[0040] By adopting the above technical solution, by setting a rope pulley 3 on the grid above the conveyor belt, and connecting one end of the safety belt to the rope pulley 3, the rope pulley 3 can be used as an attachment body for hanging the safety belt to fix the safety belt. When the operator needs to perform cleaning operations, he only needs to connect the other end of the safety belt to the body, and the safety belt can be used to ensure the safety of the operation. In addition, the present application also drives the rope pulley 3 to rotate by setting a first motor 4, so that the safety belt can be retracted and released, so as to lift the operator to different heights for cleaning operations. By setting a guide rail 1 and a slider 21 connected to the housing 2, the position of the rope pulley 3 can be moved along the extension direction of the guide rail 1, so that it is convenient for the operator to clean different positions on the conveyor belt frame and improve the cleaning efficiency.

[0041] Furthermore, if Figure 1 As shown, the housing 2 is also provided with a traveling mechanism 20, which is used to drive the control device to move back and forth along the guide rail 1. Specifically, the traveling mechanism 20 includes a rack 5, a gear 6 and a second motor 7. Among them, the rack 5 is arranged on the grid, and the rack 5 is parallel to the guide rail 1. The gear 6 is arranged on the housing 2, and the gear 6 can rotate around its own axis, and the gear 6 is meshed with the rack 5. The second motor 7 is arranged on the housing 2, and the driving end of the second motor 7 is connected to the gear 6. The second motor 7 can drive the gear 6 to rotate back and forth, so as to drive the safety belt control device to reciprocate along the first direction, so as to facilitate the operator to clean different positions on the conveyor belt frame.

[0042] Furthermore, if Figure 1 As shown, the shell 2 includes a bottom plate 23, a slider 21 is fixedly connected to the bottom plate 23, a clearance hole 10 is provided on the bottom plate 23, and the safety belt passes through the clearance hole 10 and extends to the bottom of the shell 2, so that the operator can connect the lower end of the safety belt to the operator's body.

[0043] Furthermore, if Figure 1 As shown, the housing 2 further includes a first side plate 8 and a second side plate 9. The first side plate 8 and the second side plate 9 are arranged along a second direction (eg Figure 1 The first motor 4 and the second motor 7 are arranged at intervals (as shown in the Y direction in the figure), the second direction is perpendicular to the first direction, and the housings of the first motor 4 and the second motor 7 are both fixedly connected to the first side plate 8. Among them, the first motor 4 is a stepping motor, which is relatively large in size, so the first motor 4 is arranged on the outside of the first side plate 8, and the second motor 7 is a servo motor, which is relatively small in size, so the second motor 7 is arranged between the first side plate 8 and the second side plate 9, so that the seat belt control device has a compact structure.

[0044] Furthermore, if Figure 1 The figure also includes an anti-falling mechanism 11, which is arranged on the second side plate 9 and connected to the rope wheel 3. When the rope wheel 3 rotates rapidly, the anti-falling mechanism 11 can prevent the rope wheel 3 from rotating. Figure 2As shown, the anti-fall mechanism 11 includes an outer shell 12, an inner ratchet 13, a fixed shaft 14, a turntable 15 and a pin 18. The outer shell 12 is fixedly connected to the second side plate 9. The inner ratchet 13 is fixed to the inner wall of the outer shell 12. The fixed shaft 14 is arranged inside the outer shell 12, and the axis of the fixed shaft 14 coincides with the axis of the inner ratchet 13. The turntable 15 is sleeved on the fixed shaft 14, and a bearing 16 is arranged between the turntable 15 and the fixed shaft 14. The turntable 15 is connected to the rope wheel 3, and the rope wheel 3 can drive the turntable 15 to rotate (the direction of rotation is as shown in FIG. Figure 2 The outer circumference of the turntable 15 is provided with a connecting portion 17 protruding from the outer circumference. One end of the card pin 18 is hinged to the connecting portion 17, and the other end is connected to the outer circumference of the turntable 15 through a tension spring 19. The tension spring 19 is used to apply elastic force to the card pin 18 so that the card pin 18 remains close to the outer circumference of the turntable 15. When the turntable 15 rotates rapidly, the centrifugal force on the card pin 18 is greater than the elastic force applied by the tension spring 19, so that the card pin 18 is away from the turntable 15 and inserted between the gear teeth of the inner ratchet 13 to prevent the turntable 15 from rotating. Figure 2 As shown, a latching tooth 24 is provided on the side of the latching needle 18 away from the rotating disk 15 . When the latching needle 18 rotates toward the inner ratchet 13 , the latching tooth 24 can be inserted between the teeth of the ratchet.

[0045] Furthermore, a circular opening is provided on the second side plate 9, and the projection of the turntable 15 along the second direction falls within the opening. A pin 22 (such as Figure 2 As shown), a pin hole extending along the second direction is provided on the end face of the rope wheel 3, and a pin column 22 is inserted into the pin hole through the opening, so that the rope wheel 3 and the turntable 15 can rotate or stop synchronously, so that the turntable 15 is connected to the rope wheel 3.

[0046] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above contents are further detailed descriptions of the present invention in combination with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A safety belt control device, arranged on a grille above a belt conveyor, characterized in that: The seat belt control device comprises: A guide rail, disposed on the grille, the guide rail extending along a first direction; A housing, on which a slider is provided, the slider is sleeved on the guide rail and can slide back and forth along the guide rail; A rope wheel is arranged on the housing, the rope wheel can rotate around its own axis, one end of the safety belt is fixedly connected to the rope wheel, and the safety belt is at least partially wound around the rope wheel; The first motor is arranged on the housing, and a driving end of the first motor is connected to the rope wheel and can drive the rope wheel to rotate reciprocatingly.

2. The seat belt control device according to claim 1, characterized in that: The housing is also provided with a walking mechanism, and the walking mechanism is used to drive the control device to move back and forth along the guide rail.

3. The seat belt control device according to claim 2, characterized in that: The walking mechanism comprises: A rack, provided on the grille, wherein the rack is parallel to the guide rail; A gear, disposed on the housing, capable of rotating around its own axis, and meshing with the rack; The second motor is arranged on the housing, the driving end of the second motor is connected to the gear, and the second motor can drive the gear to rotate reciprocatingly.

4. The seat belt control device according to claim 3, characterized in that: The first motor is a stepper motor, and the second motor is a servo motor.

5. The seat belt control device according to claim 4, characterized in that: The shell comprises a bottom plate, the slider is fixedly connected to the bottom plate, a clearance hole is arranged on the bottom plate, and the safety belt passes through the clearance hole and extends to the bottom of the shell.

6. The seat belt control device according to claim 5, characterized in that: The shell also includes a first side plate and a second side plate, the first side plate and the second side plate are spaced apart along a second direction, the second direction is perpendicular to the first direction, and the casing of the first motor and the casing of the second motor are both fixedly connected to the first side plate.

7. The seat belt control device according to claim 6, characterized in that: The first motor is arranged on the outer side of the first side plate, and the second motor is arranged between the first side plate and the second side plate.

8. The seat belt control device according to claim 7, characterized in that: It also includes an anti-falling mechanism, which is arranged on the second side plate and connected to the rope wheel. When the rope wheel rotates rapidly, the anti-falling mechanism can prevent the rope wheel from rotating.

9. The seat belt control device according to claim 8, characterized in that: The anti-fall mechanism comprises: A housing fixedly connected to the second side plate; An inner ratchet wheel fixed to the inner wall of the outer shell; A fixed shaft, disposed inside the housing, wherein the axis of the fixed shaft coincides with the axis of the inner ratchet; A rotating disk is sleeved on the fixed shaft, the rotating disk is connected to the rope wheel, the rope wheel can drive the rotating disk to rotate, and a connecting portion protruding from the outer circumference of the rotating disk is provided on the outer circumference of the rotating disk; A card needle, one end of which is hinged to the connecting portion, and the other end of which is connected to the outer circumference of the rotating disk through a tension spring, wherein the tension spring is used to apply elastic force to the card needle so that the card needle is kept close to the outer circumference of the rotating disk; When the rotating disk rotates rapidly, the centrifugal force applied to the clamping pin is greater than the elastic force applied by the tension spring, so that the clamping pin is away from the rotating disk and inserted between the gear teeth of the inner ratchet to prevent the rotating disk from rotating.

10. The seat belt control device according to claim 9, characterized in that: A circular opening is provided on the second side plate, and the projection of the turntable along the second direction falls within the opening. A pin extending along the second direction is provided on the end surface of the turntable, and a pin hole extending along the second direction is provided on the end surface of the rope pulley. The pin passes through the opening and is inserted into the pin hole to connect the turntable to the rope pulley.

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