Tablet segmenting and grinding equipment

Abstract

The invention belongs to the technical field of crushing, and particularly relates to tablet cutting and grinding equipment which comprises a base, a side plate is connected to one side of the base through bolts, supporting shafts are welded to the two ends of one side of the side plate, a supporting frame is welded between the two supporting shafts, and a containing mechanism is slidably connected to the inner wall of the supporting frame; threaded holes are formed in the two sides of the supporting frame in a penetrating mode, fastening bolts are connected to the inner walls of the threaded holes in a threaded mode, the containing mechanism is composed of a connecting cylinder, a collecting box and a sealing cover, external threads are formed in the top and the bottom of the connecting cylinder, and internal threads matched with the external threads are formed in the inner wall of the collecting box and the inner wall of the sealing cover. According to the tablet crushing device, the tablet crushing effect can be improved conveniently, and the situation that due to the fact that the tablet grinding effect of equipment is poor, tablet powder is doped with chipping particles, and when a liquid food patient is subjected to medicine feeding treatment, due to the small inner diameter of a stomach tube, the interior of the stomach tube is blocked by the chipping particles is avoided.

Description

Technical Field

[0001] The invention relates to the field of crushing, in particular to a tablet splitting and grinding device. Background Art

[0002] In the intensive care unit of a hospital, some patients need to be fed liquid food. When feeding medicine to patients, the crushed medicine powder needs to be mixed with warm water through a syringe and delivered to the patient's body through a gastric tube. Therefore, when feeding medicine to patients, the tablets need to be ground through a separate grinding device.

[0003] After searching, the Chinese patent application with application publication number CN107520001B discloses a tablet splitting mill, including an upper cover and a lower cover connected to each other by a rotating shaft, a sealing plate is arranged at the upper opening of the lower cover, a vertical partition is arranged below the sealing plate to divide the lower cover into a front chamber and a rear chamber, and a medicine powder storage box and a cut tablet storage box are arranged in the front chamber and the rear chamber respectively; a tablet positioning device for fixing the tablets to be cut is arranged behind the vertical partition and above the cut tablet storage box, a grinding device for grinding the cut tablets is arranged in front of the vertical partition, and the lower end of the grinding device extends into the medicine powder storage box; a switching device for switching different cutters is arranged on the upper cover, and a knife holder for cutting tablets is fixedly connected below the switching device. The present invention occupies less height space, has a tablet positioning function, can divide and cut tablets into multiple equal parts and effectively grind tablets into fine powder, and can store cut medicine particles and grinded medicine powder respectively.

[0004] When existing equipment divides and grinds tablets, multiple tablets are placed inside the equipment and crushed manually. However, during the crushing process, some tablets are not crushed thoroughly, resulting in fine particles mixed in the powder, which can block the gastric tube during injection. Summary of the invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A tablet splitting and grinding device comprises a base, one side of the base is connected to a side plate by bolts, and both ends of one side of the side plate are welded with support shafts, a support frame is welded between the two support shafts, and the inner wall of the support frame is slidably connected with a containing mechanism, threaded holes are penetrated on both sides of the support frame, and the inner walls of the threaded holes are threadedly connected with fastening bolts, the containing mechanism consists of a connecting cylinder, a collecting box and a sealing cover, and the top and bottom of the connecting cylinder are provided with external threads, the inner wall of the collecting box and the inner wall of the sealing cover are provided with internal threads matching the external threads, the collecting box is threadedly connected to the bottom of the connecting cylinder, the sealing cover is threadedly connected to the top of the connecting cylinder, a medicine inlet is provided on one side of the top of the sealing cover, a splitting mechanism is provided at the bottom of the sealing cover, and a grinding mechanism is provided at the bottom of the inner wall of the connecting cylinder, and the grinding mechanism and the splitting mechanism are matched with each other.

[0007] Preferably, the dividing mechanism includes a rotating rod, a connecting sleeve, a plurality of dividing knives and a driving mechanism, and the top of the rotating rod and the top of the sealing cover are rotationally connected through a bearing, the connecting sleeve is fixedly sleeved on the outer wall of the rotating rod, the plurality of dividing knives are spirally fixed on the outer wall of the connecting sleeve, and the rotating rod and the top of the sealing cover are connected through a driving mechanism.

[0008] Preferably, the driving mechanism consists of a motor, a driving wheel and a driven wheel, and the bottom of the motor is fixedly connected to the top of the sealing cover, one end of the motor is fixedly connected to the driving wheel, the driven wheel is fixedly sleeved on the outer wall of the rotating rod, and the driving wheel and the driven wheel are meshed.

[0009] Preferably, the grinding mechanism includes a connecting plate, a sliding rod, a first top sleeve, a second top sleeve and a grinding head, and the two ends of the connecting plate are fixedly connected to the inner wall of the connecting cylinder, the cross-section of the connecting plate is triangular, support blocks are welded on both sides of the second top sleeve, a first spring is arranged between the bottom of the support block and the top of the connecting plate, a sliding opening is opened through the top of the connecting plate, the inner wall of the sliding opening is slidably connected to the sliding rod, the top of the sliding rod is welded to the bottom of the second top sleeve, the top of the first top sleeve is welded to the bottom of the rotating rod, the bottom of the first top sleeve and the top of the second top sleeve are both provided with annular raised ends, the first top sleeve and the second top sleeve are matched with each other, the bottom of the second top sleeve is connected to the top of the grinding head by bolts, and the bottom of the grinding head is adapted to the bottom inner wall of the collecting box.

[0010] Preferably, an impact mechanism is provided on the top of the base, and one end of the impact mechanism is located directly below the collection box, so that the impact mechanism is matched with the dividing mechanism.

[0011] Preferably, the impact mechanism consists of an impact assembly, a push plate and a transmission assembly, and the push plate is located between the impact assembly and the transmission assembly, a slide groove is provided on one side of the side plate, the inner wall of the slide groove is slidably connected to the push plate, positioning grooves are provided on the inner walls on both sides of the opposite sides of the slide groove, and the inner walls of the two positioning grooves are slidably connected with positioning plates, the two positioning plates are connected to the push plate by bolts, a second spring is connected between the bottom of the push plate and the slide groove by bolts, and a pressure block is connected to the bottom position of one side of the push plate by bolts.

[0012] Preferably, the impact assembly consists of a bracket, a swing plate and an impact block, and the bottom of the bracket is connected to the top of the base by bolts, the opposite sides of the bracket are rotatably connected to the swing plate by bearings, the impact block is welded to one side of the top of the swing plate, and the bottom of the pressure block is in contact with the other side of the top of the swing plate.

[0013] Preferably, the transmission assembly consists of a turntable, a pin shaft, a support sleeve, a push rod and a shaft sleeve, and the turntable and the top of the side plate are rotatably connected through a bearing, one side of the top of the turntable is welded to the pin shaft, the support sleeve is rotatably sleeved on the outer wall of the pin shaft, a protrusion is provided on one side of the top of the turntable, and the shaft sleeve is rotatably sleeved on the outer wall of the protrusion, both ends of the push rod are respectively connected to the shaft sleeve and the pin shaft through hinges, and a top block is provided on one side of the bottom of the turntable, and the cross-section of the top block is triangular.

[0014] The beneficial effects of the present invention are:

[0015] 1. The present invention provides a splitting mechanism and a grinding mechanism. When grinding the tablets, a plurality of tablets are placed inside the containing mechanism through the medicine inlet. At this time, the splitting mechanism is started to cut and crush the tablets. The crushed tablets are collected at the bottom of the collecting box. During this period, the first top cover rotates with the rotation of the splitting mechanism. Since the outer walls of the first top cover and the second top cover on the opposite side are both provided with annular protruding ends, the second top cover drives the sliding rod and the grinding head to move downward under the action of the first top cover, so that the crushed tablets are ground by the grinding head. Grinding treatment is performed. The cooperation between the splitting mechanism and the grinding mechanism can improve the crushing effect of the tablets, so that the tablets are in powder form, and the tablet powder is prevented from being mixed with debris particles due to the poor grinding effect of the device on the tablets, so that when feeding the patient with liquid food, the debris particles may block the inside of the stomach tube due to the small inner diameter of the stomach tube. In addition, when feeding the patient with liquid food, the tablet powder is usually mixed with warm water and injected into the stomach tube through a syringe. When the syringe draws the liquid medicine, the debris particles will remain, which will reduce the dosage of the patient's medicine and affect the patient's recovery.

[0016] 2. The present invention provides a dividing mechanism, a grinding mechanism and an impact mechanism. When the tablets are ground, the raised portion will rotate with the rotation of the rotating rod. At this time, the turntable will rotate under the action of the raised portion, the shaft sleeve, the push rod, the pin shaft and the support sleeve. When the top block rotates to one side of the push plate, the push plate will slide downward under the action of the top block. At this time, the pressing block will move synchronously with the movement of the push plate. When the pressing block moves downward, it will push one end of the swing plate to deflect downward, and the other end of the swing plate will deflect upward under the action of the bracket. At this time, the other end of the swing plate will drive the impact block to push up when it deflects upward, so that the impact block hits the bottom of the collecting box, so that the debris adhering to the inner wall of the collecting box can be processed through the impact of the impact block, so as to improve the grinding effect of the tablets and prevent the tablet powder and debris from adhering to the inner wall of the collecting box due to pressure, thereby affecting the grinding effect of the tablets. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a tablet splitting and grinding device proposed by the present invention;

[0018] Figure 2 A schematic diagram of the structure of a containing mechanism of a tablet splitting and grinding device proposed by the present invention;

[0019] Figure 3 A schematic diagram of the structure of a splitting mechanism and a grinding mechanism of a tablet splitting and grinding device proposed by the present invention;

[0020] Figure 4 A schematic diagram of the milling mechanism structure of a tablet splitting and milling device proposed by the present invention;

[0021] Figure 5 A partial structural schematic diagram of a tablet splitting and grinding device proposed by the present invention;

[0022] Figure 6 A schematic diagram of the impact mechanism structure of a tablet splitting and grinding device proposed by the present invention;

[0023] Figure 7 This is a schematic diagram of the partial structure of the impact mechanism of the tablet splitting and grinding equipment proposed by the present invention.

[0024] In the attached drawings: 1. base; 2. side plate; 3. support shaft; 4. dividing mechanism; 5. containing mechanism; 6. support frame; 7. impact mechanism; 8. connecting tube; 9. collecting box; 10. sealing cover; 11. medicine inlet; 12. motor; 13. driving wheel; 14. rotating rod; 15. driven wheel; 16. connecting sleeve; 17. dividing knife; 18. first top sleeve; 19. connecting plate; 20. sliding rod; 21. second top sleeve; 22. supporting block; 23. first spring; 24. grinding head; 25. raised part; 26. bushing; 27. push rod; 28. turntable; 29. ​​pin; 30. supporting sleeve; 31. push plate; 32. positioning plate; 33. bracket; 34. swing plate; 35. impact block; 36. pressure block; 37. second spring; 38. top block. DETAILED DESCRIPTION

[0025] Example 1, reference Figure 1-Figure 5 A tablet splitting and grinding device comprises a base 1, one side of the base 1 is connected with a side plate 2 by bolts, and both ends of one side of the side plate 2 are welded with support shafts 3, a support frame 6 is welded between the two support shafts 3, and the inner wall of the support frame 6 is slidably connected with a containing mechanism 5, both sides of the support frame 6 are penetrated with threaded holes, the inner walls of the threaded holes are threadedly connected with fastening bolts, the containing mechanism 5 is composed of a connecting tube 8, a collecting box 9 and a sealing cover 10, and the top and bottom of the connecting tube 8 are provided with external threads, the inner walls of the collecting box 9 and the inner walls of the sealing cover 10 are provided with internal threads adapted to the external threads, the collecting box 9 is threadedly connected to the bottom of the connecting tube 8, the sealing cover 10 is threadedly connected to the top of the connecting tube 8, and one side of the top of the sealing cover 10 is provided with a medicine inlet The opening 11 and the bottom of the sealing cover 10 are provided with a splitting mechanism 4, and the inner wall of the connecting tube 8 is provided with a grinding mechanism at the bottom. The grinding mechanism cooperates with the splitting mechanism 4, which can improve the crushing effect of the tablets, so as to make the tablets powdery, and prevent the tablet powder from being mixed with debris particles due to the poor grinding effect of the equipment on the tablets, so that when the patient taking liquid food is fed with medicine, the debris particles may block the inside of the stomach tube due to the small inner diameter of the stomach tube. In addition, when the patient taking liquid food is fed with medicine, the tablet powder is usually mixed with warm water and injected into the stomach tube through a syringe. When the syringe draws the medicine, the debris particles will remain, which may reduce the dosage of the patient's medicine and affect the patient's recovery.

[0026] On the basis of the above, the dividing mechanism 4 includes a rotating rod 14, a connecting sleeve 16, a plurality of dividing knives 17 and a driving mechanism, and the top of the rotating rod 14 is rotatably connected with the top of the sealing cover 10 through a bearing, the connecting sleeve 16 is fixedly sleeved on the outer wall of the rotating rod 14, and the plurality of dividing knives 17 are spirally fixed on the outer wall of the connecting sleeve 16, and the rotating rod 14 and the top of the sealing cover 10 are connected through a driving mechanism.

[0027] On the basis of the above, the driving mechanism is composed of a motor 12, a driving wheel 13 and a driven wheel 15, and the bottom of the motor 12 is fixedly connected to the top of the sealing cover 10, one end of the motor 12 is fixedly connected to the driving wheel 13, and the driven wheel 15 is fixedly sleeved on the outer wall of the rotating rod 14, and the driving wheel 13 and the driven wheel 15 are meshed.

[0028] On the basis of the above, the grinding mechanism includes a connecting plate 19, a sliding rod 20, a first top sleeve 18, a second top sleeve 21 and a grinding head 24, and the two ends of the connecting plate 19 are fixedly connected to the inner wall of the connecting tube 8, the cross-section of the connecting plate 19 is triangular, and support blocks 22 are welded on both sides of the second top sleeve 21, and a first spring 23 is arranged between the bottom of the support block 22 and the top of the connecting plate 19, and a sliding opening is opened through the top of the connecting plate 19, and the inner wall of the sliding opening is slidably connected to the sliding rod 20, the top of the sliding rod 20 is welded to the bottom of the second top sleeve 21, and the top of the first top sleeve 18 is welded to the bottom of the rotating rod 14. The bottom of the first top sleeve 18 and the top of the second top sleeve 21 are both provided with annular raised ends, and the first top sleeve 18 and the second top sleeve 21 are matched with each other, and the bottom of the second top sleeve 21 is connected to the top of the grinding head 24 by bolts, and the bottom of the grinding head 24 is adapted to the bottom inner wall of the collecting box 9.

[0029] Example 2, reference Figure 1-Figure 7 , a tablet splitting and grinding device. Compared with Example 1, on the basis of Example 1, an impact mechanism 7 is provided on the top of the base 1, and one end of the impact mechanism 7 is located directly below the collecting box 9, and the impact mechanism 7 and the splitting mechanism 4 are matched.

[0030] On the basis of the above, the impact mechanism 7 is composed of an impact assembly, a push plate 31 and a transmission assembly, and the push plate 31 is located between the impact assembly and the transmission assembly. A slide groove is opened on one side of the side plate 2, and the inner wall of the slide groove is slidably connected to the push plate 31. Positioning grooves are opened on the inner walls on both sides of the opposite sides of the slide groove. The inner walls of the two positioning grooves are slidably connected with positioning plates 32. The two positioning plates 32 are connected to the push plate 31 by bolts. A second spring 37 is bolted between the bottom of the push plate 31 and the slide groove, and a pressure block 36 is bolted to the bottom of one side of the push plate 31.

[0031] On the basis of the above, the impact assembly consists of a bracket 33, a swing plate 34 and an impact block 35, and the bottom of the bracket 33 is connected to the top of the base 1 by bolts, the opposite sides of the bracket 33 are rotatably connected to the swing plate 34 by bearings, the impact block 35 is welded to one side of the top of the swing plate 34, and the bottom of the pressure block 36 is in contact with the other side of the top of the swing plate 34.

[0032] On the basis of the above, the transmission assembly consists of a turntable 28, a pin 29, a support sleeve 30, a push rod 27 and a sleeve 26, and the turntable 28 is rotatably connected to the top of the side plate 2 through a bearing, one side of the top of the turntable 28 is welded to the pin 29, the support sleeve 30 is rotatably sleeved on the outer wall of the pin 29, a protrusion 25 is provided on one side of the top of the rotating rod 14, the sleeve 26 is rotatably sleeved on the outer wall of the protrusion 25, the two ends of the push rod 27 are respectively connected to the sleeve 26 and the pin 29 through hinges, a top block 38 is provided on one side of the bottom of the turntable 28, the cross-section of the top block 38 is triangular, and the debris adhering to the inner wall of the collection box 9 can be processed by the impact of the impact block 35, so as to improve the grinding effect of the tablets and prevent the tablet powder and debris from adhering to the inner wall of the collection box 9 due to pressure, thereby affecting the grinding effect of the tablets.

[0033] In summary, with the aid of the above technical solution of the present invention: when the tablets are ground, a plurality of tablets are placed inside the containing mechanism 5 through the drug inlet 11. At this time, the splitting mechanism 4 is started, and the splitting mechanism 4 cuts and crushes the tablets. The crushed tablets are collected at the bottom of the collecting box 9. During this period, the first top cover 18 rotates with the rotation of the splitting mechanism 4. Since the outer walls of the first top cover 18 and the second top cover 21 on the opposite side are both provided with an annular protruding end, as the first top cover 18 rotates, at this time, the second top cover 21 is on the first top cover 1 The sliding rod 20 and the grinding head 24 are driven to move downward by the action of the dividing mechanism 4, so that the crushed tablets are ground by the grinding head 24. The cooperation between the dividing mechanism 4 and the grinding mechanism can improve the crushing effect of the tablets, so that the tablets are powdered, and the tablet powder is prevented from being mixed with debris particles due to the poor grinding effect of the device on the tablets, so that the debris particles may block the inside of the stomach tube due to the small inner diameter of the stomach tube when feeding the patient with liquid food. In addition, when feeding the patient with liquid food, the tablet powder is usually mixed with warm water and injected The syringe is injected into the stomach tube, and when the syringe extracts the liquid medicine, debris particles will remain, which will reduce the dosage of the patient's medicine and affect the patient's recovery. When the tablets are ground, the protrusion 25 will rotate with the rotation of the rotating rod 14. At this time, the turntable 28 will rotate under the action of the protrusion 25, the sleeve 26, the push rod 27, the pin 29 and the support sleeve 30. When the top block 38 rotates to one side of the push plate 31, the push plate 31 will slide downward under the action of the top block 38. At this time, the pressing block 36 will move synchronously with the movement of the push plate 31. When the pressing block 36 moves downward, it will push one end of the swing plate 34 to deflect downward, and the other end of the swing plate 34 will deflect upward under the action of the bracket 33. At this time, the other end of the swing plate 34 will drive the impact block 35 to push upward when it deflects upward, so that the impact block 35 hits the bottom of the collecting box 9, so that the debris adhering to the inner wall of the collecting box 9 can be processed by the impact of the impact block 35, so as to improve the grinding effect of the tablets and prevent the tablet powder and debris from adhering to the inner wall of the collecting box 9 due to pressure, thereby affecting the grinding effect of the tablets.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A tablet splitting and grinding device, comprising a base (1), one side of the base (1) is connected to a side plate (2) by bolts, and both ends of one side of the side plate (2) are welded with support shafts (3), a support frame (6) is welded between the two support shafts (3), and the inner wall of the support frame (6) is slidably connected to a containing mechanism (5), both sides of the support frame (6) are penetrated by threaded holes, and the inner wall of the threaded hole is threadedly connected to a fastening bolt, characterized in that: The containing mechanism (5) is composed of a connecting tube (8), a collecting box (9) and a sealing cover (10), and the top and bottom of the connecting tube (8) are provided with external threads, the inner wall of the collecting box (9) and the inner wall of the sealing cover (10) are provided with internal threads matching the external threads, the collecting box (9) is threadedly connected to the bottom of the connecting tube (8), the sealing cover (10) is threadedly connected to the top of the connecting tube (8), a drug inlet (11) is provided on one side of the top of the sealing cover (10), a splitting mechanism (4) is provided at the bottom of the sealing cover (10), and a grinding mechanism is provided at the bottom of the inner wall of the connecting tube (8), and the grinding mechanism and the splitting mechanism (4) are matched with each other.

2. The tablet splitting and grinding equipment according to claim 1, characterized in that: The dividing mechanism (4) comprises a rotating rod (14), a connecting sleeve (16), a plurality of dividing knives (17) and a driving mechanism, wherein the top of the rotating rod (14) is rotatably connected to the top of the sealing cover (10) via a bearing, the connecting sleeve (16) is fixedly sleeved on the outer wall of the rotating rod (14), the plurality of dividing knives (17) are spirally fixed on the outer wall of the connecting sleeve (16), and the rotating rod (14) and the top of the sealing cover (10) are connected via the driving mechanism.

3. The tablet splitting and grinding equipment according to claim 2, characterized in that: The driving mechanism is composed of a motor (12), a driving wheel (13) and a driven wheel (15), wherein the bottom of the motor (12) is fixedly connected to the top of the sealing cover (10), one end of the motor (12) is fixedly connected to the driving wheel (13), the driven wheel (15) is fixedly sleeved on the outer wall of the rotating rod (14), and the driving wheel (13) and the driven wheel (15) are meshed.

4. The tablet splitting and grinding equipment according to claim 2, characterized in that: The grinding mechanism comprises a connecting plate (19), a sliding rod (20), a first top sleeve (18), a second top sleeve (21) and a grinding head (24), and the two ends of the connecting plate (19) are fixedly connected to the inner wall of the connecting tube (8), the cross section of the connecting plate (19) is triangular, support blocks (22) are welded on both sides of the second top sleeve (21), a first spring (23) is arranged between the bottom of the support block (22) and the top of the connecting plate (19), a sliding opening is opened through the top of the connecting plate (19), and the inner wall of the sliding opening is connected to the connecting tube (8). The slide rod (20) is slidably connected, the top of the slide rod (20) is welded to the bottom of the second top sleeve (21), the top of the first top sleeve (18) is welded to the bottom of the rotating rod (14), the bottom of the first top sleeve (18) and the top of the second top sleeve (21) are both provided with annular raised ends, the first top sleeve (18) and the second top sleeve (21) are matched, the bottom of the second top sleeve (21) is connected to the top of the grinding head (24) by bolts, and the bottom of the grinding head (24) is adapted to the bottom inner wall of the collecting box (9).

5. The tablet splitting and grinding equipment according to claim 3, characterized in that: The top of the base (1) is provided with an impact mechanism (7), and one end of the impact mechanism (7) is located directly below the collection box (9), and the impact mechanism (7) is matched with the dividing mechanism (4).

6. The tablet splitting and grinding equipment according to claim 5, characterized in that: The impact mechanism (7) is composed of an impact assembly, a push plate (31) and a transmission assembly, and the push plate (31) is located between the impact assembly and the transmission assembly. A slide groove is provided on one side of the side plate (2), and the inner wall of the slide groove is slidably connected to the push plate (31). Positioning grooves are provided on the inner walls of the two opposite sides of the slide groove. Positioning plates (32) are slidably connected to the inner walls of the two positioning grooves. The two positioning plates (32) are connected to the push plate (31) by bolts. A second spring (37) is connected between the bottom of the push plate (31) and the slide groove by bolts. A pressure block (36) is connected to the bottom of one side of the push plate (31) by bolts.

7. The tablet splitting and grinding equipment according to claim 6, characterized in that: The impact assembly is composed of a bracket (33), a swing plate (34) and an impact block (35), wherein the bottom of the bracket (33) is connected to the top of the base (1) by bolts, the opposite sides of the bracket (33) are rotatably connected to the swing plate (34) by bearings, the impact block (35) is welded to one side of the top of the swing plate (34), and the bottom of the pressure block (36) is in contact with the other side of the top of the swing plate (34).

8. The tablet splitting and grinding equipment according to claim 6, characterized in that: The transmission assembly is composed of a rotating disk (28), a pin shaft (29), a support sleeve (30), a push rod (27) and a shaft sleeve (26), and the rotating disk (28) is rotatably connected to the top of the side plate (2) through a bearing, one side of the top of the rotating disk (28) is welded to the pin shaft (29), the support sleeve (30) is rotatably sleeved on the outer wall of the pin shaft (29), one side of the top of the rotating rod (14) is provided with a protrusion (25), the shaft sleeve (26) is rotatably sleeved on the outer wall of the protrusion (25), the two ends of the push rod (27) are respectively connected to the shaft sleeve (26) and the pin shaft (29) through hinges, and one side of the bottom of the rotating disk (28) is provided with a top block (38), and the cross section of the top block (38) is triangular.

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