Safety type cutting equipment for automobile inner tube

Abstract

The utility model belongs to the technical field of safe cutting of automobile inner tubes, and particularly relates to safe cutting equipment for automobile inner tubes, which comprises a workbench, first sliding grooves are symmetrically formed in the top of the workbench, first threaded rods are rotatably mounted in the two first sliding grooves, and sliding plates are slidably mounted in the first sliding grooves and located on the first threaded rods. The sliding plate is in threaded connection with the first threaded rod, a first sliding rail is fixedly installed on the top of the sliding plate, a long plate is installed on the first sliding rail in a sliding mode, a second sliding rail is fixedly installed on the long plate, sliding blocks are symmetrically installed on the second sliding rail in a sliding mode, and second hand screws are installed on the portions, located on the two sides of the second sliding rail, of the long plate in a threaded mode. According to the inner tube raw material cutting device, inner tube raw materials of different sizes can be fixed, the situation of cutting deviation during cutting is avoided, a worker has a certain distance from the blade during working, the worker does not need to hold the inner tube raw materials for cutting, and danger is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of safe cutting of automobile inner tubes, and particularly relates to a safe cutting device for automobile inner tubes. Background Technique

[0002] The inner tube is commonly known as the inner tire. It refers to a circular elastic tube used to maintain the internal pressure of the tire and equipped with a tire valve. For example, the Chinese patent with the publication number CN207415474U discloses a safe cutting device for automobile tire inner tubes, which includes a housing and a cutting table. A motor seat is fixedly connected to the upper left inside the housing, a motor is fixedly connected below the motor seat, a bearing seat is fixedly connected above the inside of the housing, and the bearing seat is connected to the housing by bolts. The bearing seat is located on the right side of the motor, a horizontal rotating shaft is rotatably connected inside the bearing seat, the left end of the horizontal rotating shaft is connected to the output end of the motor, a cutting piece is fixedly connected to the right end of the horizontal rotating shaft, a first through hole is opened on the upper right side of the housing, and the cutting piece passes through the first through hole and is located outside the first through hole. A second through hole is opened on the cutting table. Compared with the prior art, the beneficial effect of the utility model is that the utility model is used to cut the automobile inner tube to obtain the inner tube shape of the required shape, without using manual cutting such as scissors, and at the same time, the device can effectively avoid accidents when not cutting, which is worthy of popularization.

[0003] The above patent has the following problems:

[0004] There are some disadvantages in the use of this patent. For example, when using this device, it is not convenient to fix inner tube raw materials of different sizes, and cutting deviation may occur during cutting. Moreover, when personnel hold the inner tube raw materials to perform cutting work, there is still danger. In view of this, we propose a safe cutting device for automobile inner tubes. Summary of the Invention

[0005] The purpose of the utility model is to provide a safe cutting device for automobile inner tubes to solve the problems raised in the above background technique.

[0006] In view of this, the utility model provides a safe cutting device for automobile inner tubes, including:

[0007] Workbench, on the top of which symmetrically opened are first chutes. In both of the two first chutes, a first threaded rod is rotatably installed. In the first chutes and on the first threaded rods, sliding plates are slidably installed. The sliding plates are in threaded connection with the first threaded rods. On the tops of the sliding plates, first slide rails are fixedly installed. On the first slide rails, long plates are slidably installed. On the long plates, second slide rails are fixedly installed. On the second slide rails, sliders are symmetrically slidably installed. On the long plates and on both sides of the second slide rails, second hand-tightening screws are threadedly installed. On the sliders, first hand-tightening screws are threadedly installed. On the workbench and between the two sliding plates, a cutting groove is opened. In the cutting groove, a blade is arranged. On one side of the slider close to the cutting groove, a second chute is opened. In the second chute, a second threaded rod is rotatably installed. In the second chute and on the second threaded rod, a first clamping plate is slidably installed. The first clamping plate is in threaded connection with the second threaded rod. On one side of the slider and at the bottom of the second chute, a second clamping plate is fixedly installed. The upper end of the second threaded rod penetrates through the top of the second chute and extends to the outside. Inside the workbench and on one side of the cutting groove, a cavity is opened;

[0008] Drive assembly, which is located inside the workbench and is used to drive the two first threaded rods to rotate;

[0009] Power assembly, which is located inside the cavity and is used to drive the blade to rotate.

[0010] In the present technical solution, when in use, the staff manually moves the two long boards according to the width of the inner tube raw material size, so that the two long boards slide on the corresponding slide rails 1 and approach each other until the two long boards are moved to appropriate positions. Then, the staff manually turns the two hand screws 2 on one of the long boards, so that the two hand screws 2 rotate on the long boards and move downward until the bottom of the hand screws 2 are in close contact with the top of the sliding board. At this time, one of the long boards will be fixed on one of the sliding boards and will no longer move. The position of the other long board can be fixed through the above operation. Then, the staff manually moves two of the sliders on one of the slide rails 2, so that the two sliders slide on one of the slide rails 2 and approach each other until the two sliders are moved to appropriate positions. Then, the staff manually turns the two sliders on one of the slide rails 2 The hand screw 1 is used to make the two hand screws 1 rotate on the corresponding sliders and move downward until the bottom of the hand screw 1 is in close contact with the top of the slide rail 2. At this time, two of the sliders will be fixed on one of the slide rails 2. Subsequently, the positions of the other two sliders can be adjusted and fixed through the above operation. Subsequently, the staff will place the four corners of the inner tube material on the top of the four clamping plates 2 and under the four clamping plates 1 respectively. Subsequently, the handles on the four threaded rods 2 are turned by hand to drive the corresponding threaded rods 2 to rotate. Under the action of the thread, the threaded rod 2 will drive the clamping plate 1 to move downward until the clamping plate 1 squeezes a corner of the inner tube material on the top of the clamping plate 2. At this time, the four corners of the inner tube material will be clamped to fix it, ensuring that inner tube materials of different sizes can be fixed to avoid cutting offset during cutting.

[0011] Subsequently, the power assembly is set up to drive the blade to rotate, and then the driving assembly is used to drive the two threaded rods to rotate. Under the action of the threads, the two threaded rods will drive the corresponding sliding plates to move simultaneously and approach the blades. Subsequently, the fixed inner tube material will also approach the blades. Continue to rotate the rocker on one of the bevel gears until the blade is able to cut the inner tube material, and the two sliding plates will continue to move until the two sliding plates move from one side of the blade to the other side of the blade, thereby completing the cutting of the inner tube material. During this process, the staff are at a distance from the blade when working, and there is no need for staff to hold the inner tube material for cutting, which effectively avoids the occurrence of danger.

[0012] In the above technical solution, further, the driving component includes:

[0013] Power chamber, the power chamber is opened in the workbench and located on one side of the two first chutes. Two first bevel gears are rotatably installed in the power chamber, and the two first bevel gears are coaxially connected. On one side of the two first bevel gears in the power chamber, two second bevel gears are rotatably installed respectively. The first bevel gear meshes with the second bevel gear. One end of each of the two second bevel gears penetrates through one side of the power chamber and extends into the corresponding first chute, and one end of the second bevel gear is coaxially connected with the first threaded rod. One end of one of the first bevel gears penetrates through the other side of the power chamber and extends to the outside.

[0014] In this technical solution, the operator manually rotates the rocker on one of the first bevel gears to drive one of the first bevel gears to rotate. Subsequently, one of the first bevel gears will drive the other first bevel gear to rotate. Under the action of meshing, the two first bevel gears will drive the corresponding second bevel gears. Then, the two second bevel gears will drive the corresponding first threaded rods to rotate, ensuring that the two first threaded rods can rotate simultaneously.

[0015] In the above technical solution, further, one end of the second bevel gear is rotatably connected to the first chute.

[0016] In this technical solution, it is ensured that one end of the second bevel gear can rotate in the first chute.

[0017] In the above technical solution, further, the power assembly includes:

[0018] Motor, the motor is fixedly installed in the cavity, and the output shaft of the motor penetrates through one side of the cavity and extends into the cutting groove and is coaxially connected with the blade. The output shaft of the motor is rotatably connected to the cavity.

[0019] In this technical solution, it is ensured that the output shaft of the motor can rotate normally. Start the motor, and the output shaft of the motor will drive the blade to rotate.

[0020] In the above technical solution, further, the bottom of the first hand-tightening screw contacts the top of the second slide rail, and the bottom of the second hand-tightening screw contacts the top of the sliding plate.

[0021] In this technical solution, it is ensured that the bottom of the first hand-tightening screw can contact the top of the second slide rail, so that the slider can be fixed on the second slide rail; it is ensured that the bottom of the second hand-tightening screw can contact the top of the sliding plate, so that the long board can be fixed on the sliding plate.

[0022] In the above technical solution, further, a collection box is inserted and installed at the bottom of the workbench and directly below the cutting groove, and the collection box is located below the blade. The cross-sectional dimension of the collection box is larger than the cross-sectional dimension of the cutting groove.

[0023] In this technical solution, it is ensured that the debris generated by cutting can enter the collection box through the cutting groove.

[0024] The beneficial effects of the present utility model are as follows:

[0025] 1. For the safety cutting device for automobile inner tubes, through the mutual cooperation of the two first slide rails, two second slide rails, two long plates, four first hand-tightening screws, four second hand-tightening screws, four sliders and four clamping components, it is ensured that inner tube raw materials of different sizes can be fixed, avoiding the situation of cutting deviation during cutting.

[0026] 2. For the safety cutting device for automobile inner tubes, through the action of the two threaded rods, two sliding plates, two first chutes and the driving component, it is ensured that the staff has a certain distance from the blade during work, and moreover, there is no need for personnel to hold the inner tube raw material for cutting, effectively avoiding the occurrence of danger. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the present utility model;

[0028] Figure 2 is one of the internal structural schematic diagrams of the workbench in the present utility model;

[0029] Figure 3 For the present utility model Figure 1 is the enlarged structural schematic diagram at A;

[0030] Figure 4 is the internal structural schematic diagram of the slider in the present utility model;

[0031] Figure 5 For the present utility model Figure 2 is the enlarged structural schematic diagram at B;

[0032] Figure 6 is the other internal structural schematic diagram of the workbench in the present utility model.

[0033] The marks in the figure are indicated as:

[0034] 1. Workbench; 2. Sliding plate; 3. First chute; 4. Cutting groove; 5. Blade; 6. First slide rail; 7. Long plate; 8. Second slide rail; 9. Slider; 10. Second chute; 11. First clamping plate; 12. First hand-tightening screw; 13. Second hand-tightening screw; 14. Collection box; 15. First threaded rod; 16. First bevel gear; 17. Second bevel gear; 18. Power chamber; 19. Motor; 20. Second clamping plate; 21. Second threaded rod. Detailed Embodiments

[0035] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0036] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, rather than intending to limit the exemplary embodiments of the present application. For the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0037] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0038] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the orientation terms such as "front, rear, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary explanation, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0039] It should be noted that in this application, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples. Embodiment

[0040] Please refer to Figure 1 - Figure 6 As shown, this embodiment provides a safety cutting device for automobile inner tubes, including:

[0041] A workbench 1, on the top of which symmetrically arranged sliding grooves 3 are provided. In both of the two sliding grooves 3, a first threaded rod 15 is rotatably installed. In the sliding groove 3 and on the first threaded rod 15, a sliding plate 2 is slidably installed. The sliding plate 2 is threadedly connected to the first threaded rod 15. On the top of the sliding plate 2, a first slide rail 6 is fixedly installed. On the first slide rail 6, a long plate 7 is slidably installed. On the long plate 7, a second slide rail 8 is fixedly installed. On the second slide rail 8, symmetrically arranged sliders 9 are slidably installed. On the long plate 7 and on both sides of the second slide rail 8, a second hand-tightening screw 13 is threadedly installed. On the slider 9, a first hand-tightening screw 12 is threadedly installed. On the workbench 1 and between the two sliding plates 2, a cutting groove 4 is provided. In the cutting groove 4, a blade 5 is arranged. On one side of the slider 9 close to the cutting groove 4, a second sliding groove 10 is provided. In the second sliding groove 10, a second threaded rod 21 is rotatably installed. In the second sliding groove 10 and on the second threaded rod 21, a first clamping plate 11 is slidably installed. The first clamping plate 11 is threadedly connected to the second threaded rod 21. On one side of the slider 9 and at the bottom of the second sliding groove 10, a second clamping plate 20 is fixedly installed. The upper end of the second threaded rod 21 penetrates through the top of the second sliding groove 10 and extends to the outside. Inside the workbench 1 and on one side of the cutting groove 4, a cavity is provided;

[0042] A driving assembly, which is located inside the workbench 1 and is used to drive the two first threaded rods 15 to rotate;

[0043] A power assembly, which is located inside the cavity and is used to drive the blade 5 to rotate.

[0044] When in use, the staff manually moves the two long boards 7 according to the width of the inner tube raw material size, so that the two long boards 7 slide on the corresponding slide rails 6 and approach each other until the two long boards 7 are moved to appropriate positions. Then, the staff manually turns the two hand screws 2 13 on one of the long boards 7, so that the two hand screws 2 13 rotate and move downward on the long boards 7 until the bottom of the hand screws 2 13 is in close contact with the top of the sliding plate 2. At this time, one of the long boards 7 will be fixed on one of the sliding plates 2 and will no longer move. The position of the other long board 7 can be fixed through the above operation. Then, the staff manually moves two of the sliders 9 on one of the slide rails 2 8, so that the two sliders 9 slide on one of the slide rails 2 8 and approach each other until the two sliders 9 are moved to appropriate positions. Then, the staff manually turns the hand screws on the two sliders 9. 12, make the two hand screws 12 rotate on the corresponding sliders 9 and move downward until the bottom of the hand screws 12 is in close contact with the top of the slide rail 2 8. At this time, two of the sliders 9 will be fixed on one of the slide rails 28. Then, the positions of the other two sliders 9 can be adjusted and fixed through the above operation. Then, the staff will place the four corners of the inner tube material on the top of the four clamping plates 20 and under the four clamping plates 11 respectively. Then, turn the handles on the four threaded rods 21 by hand and drive the corresponding threaded rods 21 to rotate. Under the action of the thread, the threaded rods 21 will drive the clamping plates 11 to move downward until the clamping plates 11 squeeze one corner of the inner tube material on the top of the clamping plates 20. At this time, the four corners of the inner tube material will be clamped to fix it, ensuring that inner tube materials of different sizes can be fixed to avoid cutting offset during cutting.

[0045] Subsequently, the power component is set to drive the blade 5 to rotate, and then the driving component is used to drive the two threaded rods 15 to rotate. Under the action of the thread, the two threaded rods 15 will drive the corresponding sliding plates 2 to move at the same time and approach the blade 5. Subsequently, the fixed inner tube material will also approach the blade 5, and the rocker on one of the bevel gears 16 will continue to rotate until the blade 5 is able to cut the inner tube material. In addition, the two sliding plates 2 will continue to move until the two sliding plates 2 move from one side of the blade 5 to the other side of the blade 5, thereby completing the cutting of the inner tube material. During this process, the staff is at a distance from the blade 5 when working, and there is no need for personnel to hold the inner tube material for cutting, which effectively avoids the occurrence of danger. Example

[0046] This embodiment provides a safety cutting device for automobile inner tubes, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0047] The power chamber 18 is opened in the workbench 1 and is located on one side of the two first chutes 3. Two first bevel gears 16 are rotatably installed in the power chamber 18, and the two first bevel gears 16 are coaxially connected. Two second bevel gears 17 are rotatably installed on one side of the two first bevel gears 16 in the power chamber 18. The first bevel gear 16 meshes with the second bevel gear 17. One end of each of the two second bevel gears 17 penetrates through one side of the power chamber 18 and extends into the corresponding first chute 3. One end of the second bevel gear 17 is coaxially connected to the first threaded rod 15. One end of one of the first bevel gears 16 penetrates through the other side of the power chamber 18 and extends to the outside.

[0048] Among them, the operator manually rotates the rocker on one of the first bevel gears 16 to drive one of the first bevel gears 16 to rotate. Subsequently, one of the first bevel gears 16 will drive the other first bevel gear 16 to rotate. Under the action of meshing, the two first bevel gears 16 will drive the corresponding second bevel gears 17. Subsequently, the two second bevel gears 17 will drive the corresponding first threaded rods 15 to rotate; it is ensured that the two first threaded rods 15 can rotate simultaneously. Embodiment

[0049] This embodiment provides a safety cutting device for automobile inner tubes. In addition to including the technical solutions of the above embodiments, it also has the following technical features: one end of the second bevel gear 17 is rotatably connected to the first chute 3.

[0050] Among them, it is ensured that one end of the second bevel gear 17 can rotate in the first chute 3. Embodiment

[0051] This embodiment provides a safety cutting device for automobile inner tubes. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the power assembly includes:

[0052] The motor 19 is fixedly installed in the cavity, and the output shaft of the motor 19 penetrates through one side of the cavity and extends into the cutting groove 4 and is coaxially connected to the blade 5. The output shaft of the motor 19 is rotatably connected to the cavity.

[0053] Among them, it is ensured that the output shaft of the motor 19 can rotate normally. Start the motor 19, and the output shaft of the motor 19 will drive the blade 5 to rotate. Embodiment

[0054] This embodiment provides a safety cutting device for automobile inner tubes. In addition to including the technical solutions of the above embodiments, it also has the following technical features: the bottom of the first hand-tightening screw 12 contacts the top of the second slide rail 8, and the bottom of the second hand-tightening screw 13 contacts the top of the sliding plate 2.

[0055] Among them, ensure that the bottom of the hand screw 12 can contact the top of the slide rail 8, so that the slider 9 can be fixed on the slide rail 8; ensure that the bottom of the hand screw 13 can contact the top of the sliding plate 2, so that the long plate 7 can be fixed on the sliding plate 2. Example

[0056] The present embodiment provides a safety cutting device for automobile inner tubes. In addition to the technical solutions of the above-mentioned embodiments, the present invention also has the following technical features: a collecting box 14 is installed at the bottom of the workbench 1 and is located directly below the cutting groove 4, and the collecting box 14 is located below the blade 5, and the cross-sectional dimensions of the collecting box 14 are larger than the cross-sectional dimensions of the cutting groove 4.

[0057] It is ensured that the debris generated by cutting can enter the collection box 14 through the cutting groove 4.

[0058] Working principle: when in use, the staff manually moves the two long boards 7 according to the width of the inner tube raw material size, so that the two long boards 7 slide on the corresponding slide rail 6 and approach each other until the two long boards 7 are moved to appropriate positions, and then the staff manually turns the two hand screws 2 13 on one of the long boards 7, so that the two hand screws 2 13 rotate and move downward on the long board 7 until the bottom of the hand screw 2 13 is in close contact with the top of the sliding plate 2. At this time, one of the long boards 7 will be fixed on one of the sliding plates 2 and will no longer move. The position of the other long board 7 can be fixed through the above operation. Then, the staff manually moves two of the sliders 9 on one of the slide rails 2 8, so that the two sliders 9 slide on one of the slide rails 2 8 and approach each other until the two sliders 9 are moved to appropriate positions, and then manually turns the hand screws on the two sliders 9. The two hand screws 12 are used to rotate and move downward on the corresponding sliders 9 until the bottom of the hand screws 12 is in close contact with the top of the slide rail 28. At this time, two of the sliders 9 will be fixed on one of the slide rails 28. Subsequently, the positions of the other two sliders 9 can be adjusted and fixed through the above operation. Subsequently, the staff will place the four corners of the inner tube material on the top of the four clamping plates 20 and below the four clamping plates 11 respectively. Subsequently, the handles on the four threaded rods 21 are turned by hand to drive the corresponding threaded rods 21 to rotate. Under the action of the thread, the threaded rods 21 will drive the clamping plates 11 to move downward until the clamping plates 11 squeeze one corner of the inner tube material on the top of the clamping plates 20. At this time, the four corners of the inner tube material will be clamped to fix it, ensuring that inner tube materials of different sizes can be fixed to avoid cutting offset during cutting.

[0059] Subsequently, start the motor 19 so that the output shaft of the motor 19 drives the blade 5 to rotate. Subsequently, the staff manually rotates the rocker on one of the first bevel gears 16 to drive one of the first bevel gears 16 to rotate. Then, one of the first bevel gears 16 drives the other first bevel gear 16 to rotate. Under the meshing action, the two first bevel gears 16 drive the corresponding second bevel gears 17. Subsequently, the two second bevel gears 17 drive the corresponding first threaded rods 15 to rotate. Under the action of the threads, the two first threaded rods 15 drive the corresponding sliding plates 2 to displace simultaneously and approach the blade 5. Then, the fixed inner tube raw material also approaches the blade 5. Continue to rotate the rocker on one of the first bevel gears 16 until the blade 5 can cut the inner tube raw material. Moreover, the two sliding plates 2 will continue to displace until the two sliding plates 2 displace from one side of the blade 5 to the other side of the blade 5, thereby completing the cutting of the inner tube raw material. During this process, the staff is at a certain distance from the blade 5 when working, and there is no need for personnel to hold the inner tube raw material for cutting, effectively avoiding the occurrence of danger.

[0060] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them belong to the protection scope of the present application.

Claims

1. A safety cutting device for automobile inner tubes, characterized in that: include: A workbench (1), wherein a slide groove (3) is symmetrically provided on the top of the workbench (1), a threaded rod (15) is rotatably installed in each of the two slide grooves (3), a sliding plate (2) is slidably installed in the slide groove (3) and located on the threaded rod (15), the sliding plate (2) is threadedly connected to the threaded rod (15), a slide rail (6) is fixedly installed on the top of the sliding plate (2), a long plate (7) is slidably installed on the slide rail (6), a slide rail (8) is fixedly installed on the long plate (7), a slider (9) is symmetrically slidably installed on the slide rail (8), two hand screws (13) are threadedly installed on the long plate (7) and located on both sides of the slide rail (8), and a hand screw (12) is threadedly installed on the slider (9), A cutting groove (4) is provided on the workbench (1) and located between the two sliding plates (2), a blade (5) is arranged in the cutting groove (4), a second slide groove (10) is provided on the side of the slider (9) close to the cutting groove (4), a second threaded rod (21) is rotatably installed in the second slide groove (10), a first clamping plate (11) is slidably installed in the second slide groove (10) and located on the second threaded rod (21), the first clamping plate (11) is threadedly connected to the second threaded rod (21), the second clamping plate (20) is fixedly installed on one side of the slider (9) and located at the bottom of the second slide groove (10), the upper end of the second threaded rod (21) passes through the top of the second slide groove (10) and extends to the outside, and a cavity is provided in the workbench (1) and located on one side of the cutting groove (4); A drive assembly, the drive assembly being located in the workbench (1) and being used to drive the two threaded rods (15) to rotate; A power assembly is located in the cavity and is used to drive the blade (5) to rotate.

2. A safety cutting device for automobile inner tubes according to claim 1, characterized in that: The drive assembly comprises: A power chamber (18), the power chamber (18) is opened in the workbench (1) and is located on one side of the two slide grooves (3), two bevel gears (16) are rotatably installed in the power chamber (18), the two bevel gears (16) are coaxially connected, and bevel gears (17) are rotatably installed in the power chamber (18) and on one side of the two bevel gears (16), the bevel gears (16) are meshed with the bevel gears (17), one end of the two bevel gears (17) passes through one side of the power chamber (18) and extends into the corresponding slide groove (3), one end of the bevel gears (17) is coaxially connected to the threaded rod (15), and one end of one of the bevel gears (16) passes through the other side of the power chamber (18) and extends to the outside.

3. A safety cutting device for automobile inner tubes according to claim 2, characterized in that: One end of the bevel gear 2 (17) is rotatably connected to the slide groove 1 (3).

4. A safety cutting device for automobile inner tubes according to claim 1, characterized in that: The power assembly comprises: A motor (19), wherein the motor (19) is fixedly mounted in the cavity, and an output shaft of the motor (19) passes through one side of the cavity, extends into the cutting groove (4) and is coaxially connected to the blade (5), and the output shaft of the motor (19) is rotationally connected to the cavity.

5. The safety cutting device for automobile inner tube according to claim 1, characterized in that: The bottom of the first hand screw (12) contacts the top of the second slide rail (8), and the bottom of the second hand screw (13) contacts the top of the sliding plate (2).

6. A safety cutting device for automobile inner tubes according to claim 1, characterized in that: A collecting box (14) is installed and inserted at the bottom of the workbench (1) and located directly below the cutting groove (4), and the collecting box (14) is located below the blade (5), and the cross-sectional dimensions of the collecting box (14) are larger than the cross-sectional dimensions of the cutting groove (4).

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