Furniture plate recycling device

Abstract

The utility model discloses a furniture plate recycling device which comprises an installation table, a smashing mechanism is arranged on the installation table and comprises an installation shell, a rotating shaft, a transmission gear, a driven wheel, a motor, a driving wheel, a transmission belt and a smashing wheel, and a protection mechanism is arranged on a main gear. The protection mechanism comprises a connecting sleeve, a clamping block, an idling rod, a clamping groove, a connecting ring, a pressure applying block, a sliding rod, a sliding hole, a connecting plate, a pressure adjusting block and a pressure applying spring, the connecting sleeve is installed on the driving wheel and can quickly respond when the crushing wheel encounters large resistance, and the clamping block can overcome preset tension, slide outwards and break away from the clamping groove in the idling rod under the action of a tension spring and the pressure applying spring, so that the crushing wheel is prevented from falling off. By means of the design, the driving wheel can idle in time, power transmission is cut off, the motor and the smashing component are effectively protected, after resistance is eliminated, the clamping block can be clamped into the clamping groove again through the tension spring and the pressing spring, and normal transmission is recovered.

Description

Technical Field

[0001] This utility model relates to the field of furniture manufacturing and recycling technology, and more specifically, it relates to a furniture board recycling device. Background Technology

[0002] In the furniture manufacturing and recycling industry, the recycling of old furniture boards is a crucial step, not only saving resources but also reducing environmental pollution. However, existing board recycling equipment often faces a thorny problem: old furniture boards frequently contain hard objects such as screws and metal parts. These foreign objects can easily get stuck in the crushing device during the crushing process, affecting the crushing effect and potentially damaging the equipment, severely impacting recycling efficiency and equipment lifespan.

[0003] In actual operation, when hard objects get stuck in the crushing device, it often leads to a sudden increase in the motor load. Without timely protection measures, it is easy to cause the motor to overload and burn out. This not only increases the equipment maintenance cost, but also prolongs the downtime and reduces production efficiency. At the same time, frequent equipment failures also increase the safety risks for operators. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a furniture board recycling device to solve the technical problem mentioned in the background art that when hard objects get stuck in the crushing device, it often leads to a sudden increase in motor load, and without timely protection measures, it is easy to cause the motor to overload and burn out.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a furniture board recycling device, including a mounting platform, on which a crushing mechanism is provided. The crushing mechanism includes a mounting shell, a rotating shaft, a transmission gear, a driven wheel, a motor, a driving wheel, a transmission belt, and crushing wheels. The mounting shell is fixed on a mounting base. Two sets of rotating shafts are rotatably mounted inside the mounting shell. The transmission gear is mounted on one end of each of the two sets of rotating shafts and meshes with it. The driven wheel is fixed to the top of the rotating shaft. The motor is fixed on the mounting platform. The driving wheel is located at the output end of the motor. The transmission belt is located outside the driving wheel and the driven wheel. Multiple sets of crushing wheels are mounted on the outer walls of the two sets of rotating shafts. The main gear is equipped with a protection mechanism, which includes a connecting sleeve, a locking block, a free-spinning rod, a locking groove, a connecting ring, a pressure block, a sliding rod, a sliding hole, a connecting plate, a pressure adjusting block, and a pressure spring. The connecting sleeve is installed on the drive wheel. The locking block has multiple sets that slide within the connecting sleeve. The free-spinning rod is installed at the motor output end. The locking groove is located on the outer wall of the free-spinning rod. The connecting ring is located within the connecting sleeve. The pressure block is installed on the connecting ring. The sliding rod is installed on the connecting ring. Multiple sets of sliding holes are distributed within the connecting sleeve. The connecting plate is installed at the bottom of multiple sets of sliding rods and connected to the sliding holes. The adjusting block is located within multiple sets of sliding holes. The pressure spring is installed on multiple sets of connecting plates and connected to the pressure adjusting block.

[0008] The present invention is further configured such that a bracket is mounted on the mounting platform, and a conveying assembly is connected to the bracket.

[0009] The support frame provides stable structural support, ensuring the smooth operation of the conveying components. The conveying components realize the automated transfer of the sheet material, improve feeding efficiency, reduce manual operation, and ensure the continuity and uniformity of feeding, laying the foundation for the subsequent crushing process.

[0010] The present invention is further configured such that a material hopper is installed at the top of the mounting shell.

[0011] The design of the material hopper enables the directional introduction of the material, preventing it from shifting or getting stuck during entry. It also serves as a preliminary screening mechanism, blocking excessively large materials or foreign objects from entering, thus improving crushing efficiency and equipment safety, and ensuring the smooth progress of the crushing process.

[0012] The present invention is further configured such that a material hopper is installed at the bottom end of the mounting shell, and a collection box is provided below the material hopper.

[0013] The hopper guides the crushed material to fall in a specific direction, preventing it from scattering and being wasted. The collection box facilitates the collection and subsequent processing of the crushed material. This combined design improves the efficiency and cleanliness of the entire recycling process, while also making it easier for operators to manage and process the crushed material.

[0014] The present invention is further provided that partitions are installed on both sides of the inner wall of the mounting shell.

[0015] The baffle effectively prevents material from splashing during the crushing process, protecting the safety of operators, avoiding the loss of crushed materials and environmental pollution, while also controlling the material flow in the crushing area, improving the crushing effect, and ensuring the high efficiency and safety of the entire crushing process.

[0016] The present invention is further configured such that each of the multiple sets of locking blocks is equipped with a tension spring, and the bottom end of each of the multiple sets of tension springs is connected to a connecting sleeve.

[0017] The tension spring keeps the locking block in close contact with the slot during normal operation, ensuring the stability of power transmission. When resistance is encountered, the locking block is allowed to slide to achieve the protection function. After the resistance is eliminated, the locking block can quickly return to its position to resume transmission. This design improves the response speed and reliability of the protection mechanism and effectively prevents equipment damage.

[0018] The present invention is further configured such that the outer sides of the multiple sets of card blocks and the inner sides of the pressure blocks are both arc-shaped and abut against each other.

[0019] The arc-shaped design of the locking block and pressure block increases the contact area, improves the efficiency of force transmission, reduces wear and extends the life of components. At the same time, it allows the locking block to slide more smoothly when under force, reducing the possibility of jamming, improving the sensitivity and reliability of the protection mechanism, and ensuring the efficient operation of the entire protection system.

[0020] The present invention is further configured such that a pressure regulating mechanism is provided on the outer side of the connecting sleeve. The pressure regulating mechanism includes a sliding groove, a sliding sleeve, a rotating sleeve, a locking block, a locking groove, a clearance groove, and a return spring. Multiple sets of sliding grooves are provided on the outer wall of the connecting sleeve. The sliding sleeve slides inside the sliding sleeve and is connected to multiple sets of pressure regulating blocks. The rotating sleeve rotates on the outer wall of the sliding sleeve. Multiple sets of locking blocks are provided and slide on the sliding sleeve. Multiple sets of locking grooves are provided on the outer wall of the connecting sleeve. Multiple sets of clearance grooves are provided on the inner wall of the rotating sleeve. Multiple sets of return springs are provided and are respectively installed on multiple sets of locking blocks and connected to the outer wall of the sliding sleeve.

[0021] (III) Beneficial Effects

[0022] Compared with the prior art, the present invention provides a furniture board recycling device, which has the following beneficial effects:

[0023] 1. The crushing mechanism is designed with a motor-driven drive wheel and transmission belt, which in turn drive the driven wheel and shaft to rotate. The transmission gears enable the two shafts to rotate synchronously in opposite directions, thereby driving multiple sets of crushing wheels to run at high speed. This design not only improves crushing efficiency but also ensures the uniformity of crushing. The hopper ensures the directional entry of the material, the baffle effectively prevents material splashing, and the combination of the discharge hopper and the collection box enables the orderly collection of crushed materials.

[0024] 2. The innovative design of the protection mechanism, through the ingenious cooperation of the connecting sleeve, locking block, idle rod, and locking slot, can react quickly when the crushing wheel encounters significant resistance. Under the action of the tension spring and the pressure spring, the locking block can overcome the preset tension, slide outward, and disengage from the locking slot on the idle rod, realizing the separation of the connecting sleeve and the idle rod. This design allows the drive wheel to idle in time, cutting off power transmission and effectively protecting the motor and crushing components. When the resistance is eliminated, the tension spring and the pressure spring can make the locking block re-engage in the locking slot, restoring normal transmission. This automatic protection and recovery mechanism not only improves the safety of the equipment but also reduces the need for manual intervention, greatly reducing the risk of equipment damage and operator injury.

[0025] 3. The design of the pressure regulating mechanism, through the ingenious combination of sliding grooves, sliding sleeves, rotating sleeves, locking blocks, locking grooves, and clearance grooves, achieves flexible adjustment of the trigger threshold of the protection mechanism. Operators can rotate the rotating sleeve to align the locking block with the clearance groove, releasing the locking of the sliding sleeve. Then, by adjusting the position of the sliding sleeve within the sliding groove, the pressure of the pressure regulating block on the pressure spring is changed, thereby adjusting the trigger threshold of the protection mechanism. After adjustment, rotating the rotating sleeve again causes the locking block to re-engage in the locking groove, fixing the position of the sliding sleeve. This design not only improves the adaptability of the equipment, enabling flexible adjustments based on different plate types and hard foreign objects, but also enhances the accuracy and reliability of the equipment, effectively avoiding false triggering and missed triggering, further improving the equipment's working efficiency and service life. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of a furniture board recycling device according to the present invention;

[0027] Figure 2 This is a schematic diagram of the crushing mechanism in this utility model;

[0028] Figure 3 This is a schematic diagram of the protective mechanism in this utility model;

[0029] Figure 4 This is a cross-sectional structural diagram of the protective mechanism in this utility model;

[0030] Figure 5 This is a cross-sectional view of the pressure regulating mechanism in this utility model.

[0031] In the diagram: 1. Mounting platform; 2. Mounting shell; 3. Rotating shaft; 4. Transmission gear; 5. Driven wheel; 6. Motor; 7. Driving wheel; 8. Transmission belt; 9. Crushing wheel; 10. Connecting sleeve; 11. Locking block; 12. Idle rod; 13. Locking groove; 14. Connecting ring; 15. Pressure block; 16. Sliding rod; 17. Sliding hole; 18. Connecting plate; 19. Pressure adjusting block; 20. Pressure spring; 21. Bracket; 22. Conveying assembly; 23. Gathering hopper; 24. Discharge hopper; 25. Collection box; 26. Partition plate; 27. Tension spring; 28. Sliding groove; 29. ​​Sliding sleeve; 30. Rotating sleeve; 31. Locking block; 32. Locking groove; 33. Relief groove; 34. Return spring. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0035] Please see Figures 1-5A furniture board recycling device includes a mounting platform 1, on which a crushing mechanism is installed. The crushing mechanism includes a mounting shell 2, a rotating shaft 3, a transmission gear 4, a driven wheel 5, a motor 6, a driving wheel 7, a transmission belt 8, and crushing wheels 9. The mounting shell 2 is fixed to a mounting base. Two sets of rotating shafts 3 are rotatably mounted inside the mounting shell 2. The transmission gear 4 is installed at one end of the two sets of rotating shafts 3 and meshes with them. The driven wheel 5 is fixed to the top of the rotating shaft 3. The motor 6 is fixed to the mounting platform 1. The driving wheel 7 is located at the output end of the motor 6. The transmission belt 8 is located outside the driving wheel 7 and the driven wheel 5. Multiple sets of crushing wheels 9 are installed on the outer walls of the two sets of rotating shafts 3. A protection mechanism is provided on the main gear, which includes a connecting sleeve 10, a locking block 11, and a hollow... The components include a rotating rod 12, a slot 13, a connecting ring 14, a pressure block 15, a sliding rod 16, a sliding hole 17, a connecting plate 18, a pressure adjusting block 19, and a pressure spring 20. A connecting sleeve 10 is installed on the drive wheel 7. Multiple sets of the locking block 11 slide within the connecting sleeve 10. The idle rotating rod 12 is installed at the output end of the motor 6. The slot 13 is located on the outer wall of the idle rotating rod 12. The connecting ring 14 is located within the connecting sleeve 10. The pressure block 15 is installed on the connecting ring 14. The sliding rod 16 is installed on the connecting ring 14. Multiple sets of the sliding hole 17 are distributed within the connecting sleeve 10. The connecting plate 18 is installed at the bottom of multiple sets of sliding rods 16 and connected to the sliding hole 17. The adjusting block is located within multiple sets of sliding holes 17. A pressure spring is installed on multiple sets of connecting plates 18 and connected to the pressure adjusting block 19.

[0036] A bracket 21 is installed on the mounting platform 1, and a conveyor assembly 22 is connected to the bracket 21.

[0037] The bracket 21 provides a stable installation foundation for the conveying component 22, which can realize the automatic conveying of the plate, improve the feeding efficiency and continuity, reduce manual operation, and also ensure the uniformity of feeding, which is conducive to the smooth progress of the subsequent crushing process.

[0038] A material hopper 23 is installed at the top of the mounting shell 2.

[0039] The design of the material hopper 23 ensures that the material can enter the crushing area in a directional manner, preventing the material from shifting or getting stuck during the process. It also plays a preliminary screening role, blocking excessively large materials or foreign objects from entering, thus improving crushing efficiency and equipment safety.

[0040] A material hopper 24 is installed at the bottom of the mounting shell 2, and a collection box 25 is located below the material hopper 24.

[0041] The combined design of the hopper 24 and the collection box 25 enables the orderly collection of crushed materials. The hopper 24 guides the crushed materials to fall in a directional manner to prevent them from scattering, while the collection box 25 facilitates the collection and subsequent processing of the crushed materials, thereby improving the efficiency and cleanliness of the entire recycling process.

[0042] Both sides of the inner wall of the mounting shell 2 are equipped with partitions 26.

[0043] The partition 26 effectively prevents material from splashing during the crushing process, which not only protects the safety of operators but also avoids the loss of crushed materials and environmental pollution. It also helps to control the material flow in the crushing area and improve the crushing effect.

[0044] Each of the multiple sets of locking blocks 11 is equipped with a tension spring 27, and the bottom end of each set of tension springs 27 is connected to a connecting sleeve 10.

[0045] The design of the tension spring 27 ensures that the locking block 11 maintains close contact with the locking slot 13 during normal operation, ensuring the stability of power transmission. When encountering resistance, the tension spring 27 allows the locking block 11 to slide outward to achieve the protection function. After the resistance is eliminated, the locking block 11 can quickly return to its original position and resume normal transmission, thus improving the response speed and reliability of the protection mechanism.

[0046] The outer sides of the multiple sets of card blocks 11 and the inner sides of the pressure blocks 15 are all set to be arc-shaped and abut against each other.

[0047] The arc-shaped design of the locking block 11 and the pressure block 15 increases the contact area, improves the force transmission efficiency, reduces wear, and extends the service life of the components. The arc-shaped design also allows the locking block 11 to slide more smoothly when under force, reducing the possibility of jamming and improving the sensitivity and reliability of the protection mechanism.

[0048] In this embodiment, after the motor 6 starts, it drives the driven wheel 5 to rotate via the driving wheel 7 and the transmission belt 8. The driven wheel 5 drives the rotating shaft 3 to rotate. The transmission gears 4 on the rotating shaft 3 mesh with each other, causing the two rotating shafts 3 to rotate synchronously in opposite directions. The multiple sets of crushing wheels 9 installed on the outer wall of the rotating shaft 3 rotate at high speed, crushing the plate material entering the mounting shell 2. The hopper 23 ensures that the plate material enters the crushing area in a directional manner, and the partition 26 prevents material from splashing. The crushed material enters the collection box 25 through the drop hopper 24. When the crushing wheel 9 encounters... When encountering significant resistance, the locking block 11 inside the connecting sleeve 10 overcomes the tension of the tension spring 27 and the preset tension of the pressure spring 20, slides outward to overcome the tension applied by the pressure spring 20 to the pressure block 15, and disengages from the slot 13 on the idle rod 12. At this time, the connecting sleeve 10 separates from the idle rod 12, the drive wheel 7 idles, cutting off power transmission and protecting the motor 6 and the crushing component. After the motor 6 is turned off, when the resistance is eliminated, the action of the tension spring 27 and the pressure spring 20 causes the locking block 11 to re-engage in the slot 13, restoring normal transmission.

[0049] Please see Figures 4-5As one embodiment of the pressure regulating mechanism: a pressure regulating mechanism is provided on the outer side of the connecting sleeve 10. The pressure regulating mechanism includes a sliding groove 28, a sliding sleeve 29, a rotating sleeve 30, a locking block 31, a locking groove 32, a clearance groove 33, and a return spring 34. Multiple sets of sliding grooves 28 are provided on the outer wall of the connecting sleeve 10. The sliding sleeve 29 slides inside the sliding sleeve 29 and is connected to multiple sets of pressure regulating blocks 19. The rotating sleeve 30 rotates on the outer wall of the sliding sleeve 29. Multiple sets of locking blocks 31 slide on the sliding sleeve 29. Multiple sets of locking grooves 32 are provided on the outer wall of the connecting sleeve 10. Multiple sets of clearance grooves 33 are provided on the inner wall of the rotating sleeve 30. Multiple sets of return springs 34 are provided and are respectively installed on multiple sets of locking blocks 31 and connected to the outer wall of the sliding sleeve 29.

[0050] More specifically, rotate the rotating sleeve 30 so that the relief groove 33 on its inner wall aligns with the locking block 31. The locking block 31 slides into the relief groove 33 under the action of the return spring 34, causing the bottom ends of multiple sets of locking blocks 31 to disengage from the locking groove 32, thus releasing the lock on the sliding sleeve 29. At this time, the position of the sliding sleeve 29 in the sliding groove 28 can be adjusted, thereby changing the pressure of the pressure regulating block 19 on the pressure spring 20, and thus adjusting the trigger threshold of the protection mechanism. After the adjustment is completed, rotate the rotating sleeve 30 so that the locking block 31 re-engages into the locking groove 32, fixing the position of the sliding sleeve 29.

[0051] In summary, during the use or operation of the overall equipment: after the motor 6 starts, it drives the driven wheel 5 to rotate via the drive wheel 7 and the transmission belt 8. The driven wheel 5 drives the rotating shaft 3 to rotate. The transmission gears 4 on the rotating shaft 3 mesh with each other, causing the two rotating shafts 3 to rotate synchronously in opposite directions. The multiple sets of crushing wheels 9 installed on the outer wall of the rotating shaft 3 rotate at high speed, crushing the plates that enter the installation shell 2. The hopper 23 ensures that the plates enter the crushing area in a directional manner. The baffle 26 prevents material from splashing. The crushed material enters the collection box 25 through the drop hopper 24. When the crushing wheel 9 encounters significant resistance, the locking block 11 inside the connecting sleeve 10 will overcome the tension of the tension spring 27 and the preset tension of the pressure spring 20, slide outward to overcome the tension of the pressure spring 20 on the pressure block 15, and disengage from the slot 13 on the idle rod 12. At this time, the connecting sleeve 10 separates from the idle rod 12, the drive wheel 7 idles, cutting off the power transmission and protecting the motor 6 and the crushing components. After the motor 6 is turned off, when the resistance is eliminated, the action of the tension spring 27 and the pressure spring 20 causes the locking block 11 to re-engage in the slot 13, restoring normal transmission.

[0052] Rotate the rotating sleeve 30 so that the relief groove 33 on its inner wall is aligned with the locking block 31. The locking block 31 slides into the relief groove 33 under the action of the return spring 34, so that the bottom of the multiple sets of locking blocks 31 disengages from the locking groove 32, releasing the lock on the sliding sleeve 29. At this time, the position of the sliding sleeve 29 in the sliding groove 28 can be adjusted, thereby changing the pressure of the pressure regulating block 19 on the pressure spring 20, and thus adjusting the trigger threshold of the protection mechanism. After the adjustment is completed, rotate the rotating sleeve 30 so that the locking block 31 is re-engaged into the locking groove 32, fixing the position of the sliding sleeve 29.

[0053] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A furniture board recycling device comprising a mounting table (1), characterized in that: The installation platform (1) is provided with a crushing mechanism, the crushing mechanism includes a mounting shell (2), a rotating shaft (3), a transmission gear (4), a driven wheel (5), a motor (6), a driving wheel (7), a transmission belt (8) and a crushing wheel (9), the mounting shell (2) is fixed on the mounting seat, the rotating shaft (3) is provided with two groups of rotating shafts (3) which are rotatably installed in the mounting shell (2), the transmission gear (4) is installed at one end of the two rotating shafts (3) and is engaged, the driven wheel (5) is fixed at the top end of the rotating shaft (3), the motor (6) is fixed on the installation platform (1), the driving wheel (7) is arranged at the output end of the motor (6), the transmission belt (8) is arranged outside the driving wheel (7) and the driven wheel (5), the crushing wheel (9) is provided with a plurality of groups of installation on the outer wall of the two rotating shafts (3), the main gear is provided with a protection mechanism, the protection mechanism includes a connecting sleeve (10), a clamping block (11), an idling rod (12), a clamping groove (13), a connecting ring (14), a pressing block (15), a sliding rod (16), a sliding hole (17), a connecting plate (18), an adjusting block (19) and a pressing spring (20), the connecting sleeve (10) is installed on the driving wheel (7), the clamping block (11) is provided with a plurality of groups of sliding in the connecting sleeve (10), the idling rod (12) is installed at the output end of the motor (6), the clamping groove (13) is arranged on the outer wall of the idling rod (12), the connecting ring (14) is arranged in the connecting sleeve (10), the pressing block (15) is installed on the connecting ring (14), the sliding rod (16) is installed on the connecting ring (14), the sliding hole (17) is provided with a plurality of groups of distributed in the connecting sleeve (10), the connecting plate (18) is installed at the bottom end of the plurality of sliding rods (16) and is connected with the sliding hole (17), the adjusting block is arranged in the plurality of sliding holes (17), and the pressing spring is installed on the plurality of connecting plates (18) and is connected with the adjusting block (19).

2. The furniture board recycling device according to claim 1, characterized in that: The mounting platform (1) is provided with a support (21), and the support (21) is connected with a conveying assembly (22).

3. The furniture board recycling device according to claim 2, characterized in that: The top end of the mounting shell (2) is provided with a material collecting hopper (23).

4. The furniture board recycling device according to claim 3, characterized in that: The bottom end of the mounting shell (2) is provided with a material falling hopper (24), and the material falling hopper (24) is provided with a collecting box (25) below.

5. The furniture board recycling device according to claim 4, characterized in that: The inner wall of the mounting shell (2) is provided with a baffle (26) on both sides.

6. The furniture board recycling device according to claim 5, characterized in that the plurality of groups The clamping block (11) is provided with a tension spring (27), and the bottom end of the plurality of tension springs (27) is connected with the connecting sleeve (10).

7. The furniture board recycling device according to claim 6, characterized in that the plurality of groups The outer side of the clamping block (11) and the inner side of the pressing block (15) are both arc-shaped and abut.

8. The furniture board recycling device according to claim 7, characterized in that: The connecting sleeve (10) is externally provided with a pressure regulating mechanism, which comprises a sliding groove (28), a sliding sleeve (29), a rotating sleeve (30), a locking block (31), a locking groove (32), a position giving groove (33) and a reset spring (34). The sliding groove (28) is provided with a plurality of groups of pressure regulating blocks (19) distributed on the outer wall of the connecting sleeve (10). The sliding sleeve (29) is slidably arranged in the sliding sleeve (29) and connected with the plurality of groups of pressure regulating blocks (19). The rotating sleeve (30) is rotatably arranged on the outer wall of the sliding sleeve (29). The locking block (31) is provided with a plurality of groups of locking blocks (31) slidably arranged on the sliding sleeve (29). The locking groove (32) is provided with a plurality of groups of locking grooves (32) distributed on the outer wall of the connecting sleeve (10). The position giving groove (33) is provided with a plurality of groups of position giving grooves (33) distributed on the inner wall of the rotating sleeve (30). The reset spring (34) is provided with a plurality of groups of reset springs (34) respectively mounted on the plurality of groups of locking blocks (31) and connected with the outer wall of the sliding sleeve (29).

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