Oil immersion device for wear-resistant and corrosion-resistant gear machining

Abstract

The invention relates to the field of gear machining, in particular to an oil immersion device for machining a wear-resistant and corrosion-resistant gear. A supporting table is fixed to the output end of an air cylinder, a rotating lantern ring movably sleeves the outer surface of a guide rod, a fixed plate and a tooth block are fixed to the outer surface of the rotating lantern ring, a movable plate movably sleeves the outer surface of the rotating lantern ring, the movable plate is located between the fixed plate and the tooth block, a top plate is movably arranged on the surface of one side of the movable plate, and a gear to be machined is arranged on the outer surface of the top plate. The gear oil immersion device has the beneficial effects that according to the gear oil immersion mode to be machined, multiple sets of gears to be machined are fixed to a rotating lantern ring in an array arrangement mode, the side surfaces of the multiple sets of gears to be machined are not attached, the gear oil immersion device is not prone to damage, the gear oil immersion device is not prone to damage, and the gear oil immersion device is convenient to use. Complete oil immersion of the outer surfaces of the to-be-machined gears can be achieved, and surface damage caused by attachment of multiple sets of to-be-machined gears is avoided.

Description

Technical Field

[0001] The invention relates to the field of gear processing, in particular to an oil immersion device for processing wear-resistant and corrosion-resistant gears. Background Art

[0002] A gear is a mechanical element with a tooth shape, which is mainly used to transmit motion and power.

[0003] In the prior art, gears are very common mechanical components, which have multiple functions such as transmitting mechanical power and reducing speed. In order to enhance the protection of the gears after manufacturing, the gears are often required to be immersed in oil to form an oil film on their surface. The gears are placed in a hollow container, and then the container and the gears are immersed in an oil pool. After soaking for a certain period of time, the staff lifts the container and takes out the gears, and the oil immersion process is completed.

[0004] However, in order to facilitate batch oiling, traditional gear oiling usually stacks transmission gears together for easy uniform placement and removal. However, this method does not allow the sides of the transmission gears to fully contact the oil in the oil immersion pool, affecting the effect of the oil immersion. On the other hand, the stacked gears are prone to wear, affecting the subsequent use of the gears. Summary of the invention

[0005] The object of the present invention is to provide an oil immersion device for wear-resistant and corrosion-resistant gear processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oil immersion device for wear-resistant and corrosion-resistant gear processing, an oil immersion tank, a cylinder is fixed on the side surface of the oil immersion tank, a support platform is fixed on the output end of the cylinder, a motor is fixed on the upper surface of the support platform, a support column is fixed on the output end of the motor, a transmission sleeve is movably provided on the outer surface of the support column, a fixed sleeve is fixed on the lower end of the support platform, the transmission sleeve is located inside the fixed sleeve, and a vertical plate is movably provided inside the oil immersion tank;

[0007] A guide rod, a rotating ring is movably sleeved on the outer surface of the guide rod, a fixed plate and a gear block are fixed on the outer surface of the rotating ring, a movable plate is movably sleeved on the outer surface of the rotating ring, the movable plate is located between the fixed plate and the gear block, a top plate is movably provided on one side of the movable plate, a gear to be processed is provided on the outer surface of the top plate, a storage block is fixed on the other side of the movable plate, a telescopic ring and a spring are movably provided inside the storage block, and a second tooth groove is opened at the end of the telescopic ring.

[0008] Preferably, a first positioning groove is formed on the outer surface of the support column, a first positioning track is fixed on the inner wall surface of the transmission sleeve, a transmission rod is fixed on the upper end of the outer surface of the transmission sleeve, and a transmission groove is formed on the inner wall of the fixed sleeve.

[0009] Preferably, the first positioning track corresponds to the first positioning groove and is movably clamped, the transmission rod corresponds to the transmission groove and is movably clamped, the guide rod is fixed to the outer surface of the lower end of the transmission sleeve, and a second positioning groove is opened at the end of the guide rod.

[0010] Preferably, a turntable is movably provided on the bottom surface of the inner wall of the oil immersion bin, the vertical plate is fixed to the upper surface of the turntable end, an annular groove is provided on the side surface of the inner wall of the oil immersion bin, a fan-shaped block is fixed on the outer surface of the vertical plate, a groove is provided on the inner surface of the vertical plate, and an inner groove is provided on the side surface of the inner wall of the groove.

[0011] Preferably, a second positioning track is fixed to the bottom surface of the inner wall of the groove, a first tooth groove is opened on one side surface of the inner wall of the inner groove, the fan-shaped block corresponds to the annular groove and is movably clamped, and the second positioning track corresponds to the second positioning groove and is movably clamped.

[0012] Preferably, a transmission gear is fixed at one end of the rotating ring, the transmission gear corresponds to the first tooth groove and is movably clamped, a limiting block is fixed on the outer surface of the rotating ring, and a limiting groove is provided on the inner surface of the movable plate, and the limiting groove corresponds to the limiting block and is movably clamped.

[0013] Preferably, the fixed plate is fixed with a third positioning rail on the side surface of the tooth block, the side surface of the movable plate is provided with an arc groove, the top plate is fixed with a fixed block and a positioning rod on the side surface of the lower end, the fixed block and the positioning rod are symmetrically distributed, and the surface of the fixed block is provided with a third positioning groove.

[0014] Preferably, the third positioning rail corresponds to the third positioning groove and is movably locked, and the positioning rod corresponds to the arc groove and is movably locked.

[0015] Preferably, a storage groove is provided inside the storage block, a notch is provided near the end of the storage groove, a baffle is fixed at one end of the telescopic ring, the baffle is movably clamped inside the storage groove, a movable ring is fixed at the other end of the telescopic ring, and the second tooth groove is provided on the inner surface of the movable ring.

[0016] Preferably, the baffle has the same diameter as the storage groove, the telescopic ring has the same diameter as the slot, the spring is movably sleeved on the outer surface of the telescopic ring, the movable ring has the same diameter as the storage block, and the tooth block corresponds to the second tooth groove and is movably clamped.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The cylinder is started to drive the support platform to move up, and the support platform will also drive the guide rod to move up. When the distance between the guide rod and the end of the vertical plate is slightly larger than the radius of the gear to be processed, the cylinder is closed. At this time, the gear to be processed can be sleeved on the outer surface of the top plate, and then the movable ring is pulled outward to disengage the second tooth groove from the tooth block, so that the movable plate loses its limit and can rotate on the outer surface of the rotating sleeve ring. Since the arc groove on the surface of the movable plate is an arc groove, and the arc groove is opened outward from the axis, the movable plate will drive the top plate to move outward through the positioning rod when it rotates, and since the top plate is restricted To the limit of the third positioning track, the top plate moves in a straight line, so that multiple groups of top plates support the inner ring surface of the gear to be processed. At this time, the starting cylinder drives the support table to descend, and the gear to be processed is put back into the oil immersion tank. The oil in the oil immersion tank will immerse the gear to be processed. This oil immersion method of the gear to be processed fixes multiple groups of gears to be processed on the rotating ring in an array arrangement. The side surfaces of the multiple groups of gears to be processed are not fitted together, so the outer surface of the gear to be processed can be completely immersed in oil, and the surface damage caused by the fitting of multiple groups of gears to be processed can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a three-dimensional schematic diagram of the structure of the up and down circular moving component of the present invention;

[0021] Figure 3 This is an exploded three-dimensional schematic diagram of the up-and-down cyclic moving component structure of the present invention;

[0022] Figure 4 It is a cutaway perspective schematic diagram of the fixing collar structure of the present invention;

[0023] Figure 5 It is a three-dimensional schematic diagram of the structure of the oil-immersed component of the present invention;

[0024] Figure 6 This is an exploded three-dimensional schematic diagram of the oil immersion bunker structure of the present invention;

[0025] Figure 7 It is a cutaway perspective schematic diagram of the vertical plate structure of the present invention;

[0026] Figure 8 It is a cutaway perspective schematic diagram of the rotating assembly structure of the present invention;

[0027] Fig. 9 It is a cutaway exploded perspective schematic diagram of the rotating assembly structure of the present invention;

[0028] Fig.10 It is a cutaway perspective schematic diagram of the rotating collar structure of the present invention;

[0029] Fig.11It is a three-dimensional schematic diagram of the rotating collar structure of the present invention;

[0030] Fig.12 It is a cutaway exploded perspective schematic diagram of the clamping assembly structure of the present invention;

[0031] Fig.13 It is a three-dimensional schematic diagram of the top plate structure of the present invention;

[0032] Fig.14 It is a partially cutaway exploded perspective schematic diagram of the movable panel assembly structure of the present invention.

[0033] In the figure: 1. Motor; 2. Support platform; 3. Cylinder; 4. Oil immersion tank; 5. Fixed sleeve; 6. Guide rod;

[0034] 7. Transmission sleeve; 8. First positioning groove; 9. Support column; 10. First positioning track; 11. Transmission rod; 12. Transmission groove; 13. Vertical plate; 14. Gear to be processed; 15. Annular groove; 16. Turntable; 17. Fan-shaped block; 18. Inner groove; 19. Groove; 20. Second positioning track; 21. First tooth groove; 22. Transmission gear; 23. Rotating collar; 24. Second positioning groove; 25. Storage groove; 26. Limiting groove; 27. Fixed plate; 28. Third positioning track; 29. ​​Limiting block; 30. Gear block; 31. Top plate; 32. Arc groove; 33. Movable plate; 34. Fixed block; 35. Third positioning groove; 36. Positioning rod; 37. Storage block;

[0035] 38. Spring; 39. Baffle; 40. Telescopic ring; 41. Movable ring; 42. Second tooth groove; 43. Notch. DETAILED DESCRIPTION

[0036] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1

[0038] See also Figure 1-Figure 14The present invention provides a technical solution: an oil immersion device for processing wear-resistant and corrosion-resistant gears, wherein a cylinder 3 is fixed to the side surface of an oil immersion tank 4, a support platform 2 is fixed to the output end of the cylinder 3, a motor 1 is fixed to the upper surface of the support platform 2, a support column 9 is fixed to the output end of the motor 1, a transmission sleeve 7 is movably provided on the outer surface of the support column 9, a fixed sleeve 5 is fixed to the lower end of the support platform 2, the transmission sleeve 7 is located inside the fixed sleeve 5, a vertical plate 13 is movably provided inside the oil immersion tank 4, and since the transmission gear 22 is clamped with the first tooth groove 21, the rotating sleeve 23 will rotate while moving up and down inside the vertical plate 13, and the rotation of the rotating sleeve 23 will drive the gear 14 to be processed to rotate, thereby further accelerating the speed of the gear 14 to be processed during oil immersion, and improving the efficiency of the gear 14 to be processed during oil immersion.

[0039] A rotating collar 23 is movably sleeved on the outer surface of the guide rod 6, a fixed plate 27 and a tooth block 30 are fixed on the outer surface of the rotating collar 23, a movable plate 33 is movably sleeved on the outer surface of the rotating collar 23, the movable plate 33 is located between the fixed plate 27 and the tooth block 30, a top plate 31 is movably provided on one side surface of the movable plate 33, a gear 14 to be processed is provided on the outer surface of the top plate 31, and the gear 14 to be processed is fixed on the rotating collar 23 in an array arrangement by an oil-immersed manner, and the side surfaces of the multiple groups of gears 14 to be processed are not fitted , which can achieve complete oil immersion of the outer surface of the gear 14 to be processed, and avoid surface damage caused by the adhesion of multiple groups of gears 14 to be processed. A storage block 37 is fixed to the other side surface of the movable plate 33. A telescopic ring 40 and a spring 38 are movably arranged inside the storage block 37. A second tooth groove 42 is opened at the end of the telescopic ring 40. The movable ring 41 is loosened. Due to the elasticity of the spring 38, the spring 38 is reset to push the baffle 39 to re-engage the second tooth groove 42 and the tooth block 30, so that the gear 14 to be processed is fixed on the outer surface of the rotating ring 23.

[0040] On the basis of Example 1, in order to achieve complete oil immersion of the outer surface of the gear 14 to be processed, a first positioning groove 8 is opened on the outer surface of the support column 9, a first positioning track 10 is fixed to the inner wall surface of the transmission sleeve 7, a transmission rod 11 is fixed to the upper end of the outer surface of the transmission sleeve 7, and a transmission groove 12 is opened on the inner wall of the fixed sleeve 5.

[0041] The first positioning track 10 corresponds to the first positioning groove 8 and is movably clamped, the transmission rod 11 corresponds to the transmission groove 12 and is movably clamped, the guide rod 6 is fixed to the outer surface of the lower end of the transmission sleeve 7, and a second positioning groove 24 is opened at the end of the guide rod 6.

[0042] A turntable 16 is movably provided on the bottom surface of the inner wall of the oil immersion bin 4, and a vertical plate 13 is fixed to the upper surface of the end of the turntable 16. An annular groove 15 is provided on the side surface of the inner wall of the oil immersion bin 4, and a fan-shaped block 17 is fixed on the outer surface of the vertical plate 13. A groove 19 is provided on the inner surface of the vertical plate 13, and an inner groove 18 is provided on the inner wall side surface of the groove 19.

[0043] A second positioning track 20 is fixed to the bottom surface of the inner wall of the groove 19, a first tooth groove 21 is opened on one side surface of the inner wall of the inner groove 18, the sector block 17 corresponds to the annular groove 15 and is movably clamped, and the second positioning track 20 corresponds to the second positioning groove 24 and is movably clamped.

[0044] A transmission gear 22 is fixed to one end of the rotating ring 23, and the transmission gear 22 corresponds to the first tooth groove 21 and is movably clamped. A limit block 29 is fixed to the outer surface of the rotating ring 23, and a limit groove 26 is provided on the inner surface of the movable plate 33, and the limit groove 26 corresponds to the limit block 29 and is movably clamped.

[0045] A third positioning rail 28 is fixed to the fixed plate 27 on the side surface of the tooth block 30, an arc groove 32 is provided on the side surface of the movable plate 33, a fixed block 34 and a positioning rod 36 are fixed to the side surface of the lower end of the top plate 31, the fixed block 34 and the positioning rod 36 are symmetrically distributed, and a third positioning groove 35 is provided on the surface of the fixed block 34.

[0046] The third positioning rail 28 corresponds to the third positioning groove 35 and is movably arranged, and the positioning rod 36 corresponds to the arc groove 32 and is movably arranged.

[0047] A storage groove 25 is provided inside the storage block 37, and a notch 43 is provided near the end of the storage groove 25. A baffle 39 is fixed to one end of the telescopic ring 40, and the baffle 39 is movably clamped inside the storage groove 25. A movable ring 41 is fixed to the other end of the telescopic ring 40, and a second tooth groove 42 is provided on the inner surface of the movable ring 41.

[0048] The baffle 39 has the same diameter as the receiving groove 25, the telescopic ring 40 has the same diameter as the notch 43, the spring 38 is movably mounted on the outer surface of the telescopic ring 40, the movable ring 41 has the same diameter as the receiving block 37, and the tooth block 30 corresponds to the second tooth groove 42 and is movably mounted.

[0049] In actual use, the groove on the surface of the baffle 39 is correspondingly locked with the block fixed on the inner wall of the storage groove 25, so that a limit is formed between the movable ring 41 and the movable plate 33 and they cannot rotate relative to each other. First, the cylinder 3 is started to drive the support platform 2 to move up. When the support platform 2 moves up, it will also drive the guide rod 6 to move up. When the distance between the guide rod 6 and the end of the vertical plate 13 is slightly larger than the radius of the gear 14 to be processed, the cylinder 3 is closed. At this time, the gear 14 to be processed can be sleeved on the outer surface of the top plate 31, and then the movable ring 41 is pulled outward to disengage the second tooth groove 42 from the tooth block 30, so that the movable plate 33 loses the limit and can rotate on the outer surface of the rotating sleeve ring 23. The arc groove 32 opened on the surface is an arc groove, and the arc groove 32 is opened outward from the axis, so when the movable plate 33 rotates, the top plate 31 will be driven to move outward through the positioning rod 36, and because the top plate 31 is limited by the third positioning track 28, the top plate 31 moves in a straight line, so that multiple groups of top plates 31 hold the inner ring surface of the gear 14 to be processed. At this time, the movable ring 41 is released. Due to the elasticity of the spring 38, the spring 38 is reset to push the baffle 39 to re-set the second tooth groove 42 and the tooth block 30, so that the gear 14 to be processed is fixed on the outer surface of the rotating ring 23. At this time, the cylinder 3 is started to drive the support table 2 to descend, and the gear to be processed is The gear 14 is put back into the oil immersion tank 4, and the oil in the oil immersion tank 4 will immerse the gear 14 to be processed. This oil immersion method of the gear 14 to be processed fixes multiple groups of gears 14 to be processed on the rotating ring 23 in an array arrangement. The side surfaces of the multiple groups of gears 14 to be processed are not in contact with each other, which can achieve complete oil immersion of the outer surface of the gear 14 to be processed and avoid surface damage caused by the contact of multiple groups of gears 14 to be processed; when the gear 14 to be processed is placed in the oil immersion tank 4 for oil immersion, the motor 1 is started to drive the support column 9 to rotate. Since the first positioning groove 8 is clamped with the first positioning track 10, the support column 9 will drive the transmission sleeve while rotating 7 rotates, and because the transmission rod 11 is clamped with the transmission groove 12, and the transmission groove 12 is up and down, the transmission sleeve 7 will move up and down along the transmission groove 12 while rotating, and the transmission sleeve 7 will drive the gear 14 to be processed fixed on the rotating sleeve ring 23 to rotate and move up and down while rotating and moving up and down. On the one hand, the rotating gear 14 to be processed will stir the oil in the oil immersion tank 4, so that the concentration of the oil immersion tank 4 is evenly distributed, which is more conducive to the oil immersion of the gear 14 to be processed. On the other hand, the gear 14 to be processed moves during oil immersion, which speeds up the oil immersion speed of the gear 14 to be processed and improves the oil immersion efficiency of the gear 14 to be processed.When the transmission sleeve 7 rotates and moves up and down in a circular motion, it will drive the guide rod 6 to rotate and move up and down in a circular motion. Since the second positioning track 20 is clamped with the second positioning groove 24, and the turntable 16 is movably arranged inside the oil immersion tank 4, the guide rod 6 will drive the vertical plate 13 to rotate in the oil immersion tank 4 on the one hand, and the guide rod 6 will move up and down in a circular motion along the second positioning track 20 on the inner wall of the groove 19 on the other hand. The guide rod 6 moves up and down on the vertical plate 13, which will drive the rotating collar 23 to move up and down inside the vertical plate 13. Since the transmission gear 22 is clamped with the first tooth groove 21, the rotating collar 23 will rotate while moving up and down inside the vertical plate 13. The rotation of the rotating collar 23 will drive the gear 14 to be processed to rotate, thereby further accelerating the speed of the gear 14 to be processed when it is immersed in oil, and improving the efficiency of the gear 14 to be processed when it is immersed in oil. ;

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil immersion device for wear-resistant and corrosion-resistant gear processing, characterized in that: include: An oil immersion tank (4), wherein a cylinder (3) is fixed on the side surface of the oil immersion tank (4), a support platform (2) is fixed on the output end of the cylinder (3), a motor (1) is fixed on the upper surface of the support platform (2), a support column (9) is fixed on the output end of the motor (1), a transmission sleeve (7) is movably provided on the outer surface of the support column (9), a fixed sleeve (5) is fixed on the lower end of the support platform (2), the transmission sleeve (7) is located inside the fixed sleeve (5), and a vertical plate (13) is movably provided inside the oil immersion tank (4); A guide rod (6), wherein a rotating sleeve (23) is movably sleeved on the outer surface of the guide rod (6), a fixed plate (27) and a tooth block (30) are fixed on the outer surface of the rotating sleeve (23), a movable plate (33) is movably sleeved on the outer surface of the rotating sleeve (23), the movable plate (33) is located between the fixed plate (27) and the tooth block (30), a top plate (31) is movably sleeved on one side surface of the movable plate (33), a gear (14) to be processed is provided on the outer surface of the top plate (31), a storage block (37) is fixed on the other side surface of the movable plate (33), a telescopic sleeve (40) and a spring (38) are movably provided inside the storage block (37), and a second tooth groove (42) is provided at the end of the telescopic sleeve (40).

2. The oil immersion device for wear-resistant and corrosion-resistant gear processing according to claim 1, characterized in that: The outer surface of the support column (9) is provided with a first positioning groove (8), the inner wall surface of the transmission sleeve (7) is fixed with a first positioning track (10), the outer surface of the transmission sleeve (7) is fixed with a transmission rod (11) at the upper end, and the inner wall of the fixed sleeve (5) is provided with a transmission groove (12).

3. The oil immersion device for wear-resistant and corrosion-resistant gear processing according to claim 2, characterized in that: The first positioning track (10) corresponds to the first positioning groove (8) and is movably mounted, the transmission rod (11) corresponds to the transmission groove (12) and is movably mounted, the guide rod (6) is fixed to the outer surface of the lower end of the transmission sleeve (7), and a second positioning groove (24) is formed at the end of the guide rod (6).

4. The oil immersion device for wear-resistant and corrosion-resistant gear processing according to claim 3 is characterized in that: A rotating disk (16) is movably provided on the bottom surface of the inner wall of the oil immersion bin (4); the vertical plate (13) is fixed to the upper surface of the end of the rotating disk (16); an annular groove (15) is provided on the side surface of the inner wall of the oil immersion bin (4); a fan-shaped block (17) is fixed on the outer surface of the vertical plate (13); a groove (19) is provided on the inner surface of the vertical plate (13); and an inner groove (18) is provided on the inner wall side surface of the groove (19).

5. The oil immersion device for wear-resistant and corrosion-resistant gear processing according to claim 4, characterized in that: A second positioning track (20) is fixed on the bottom surface of the inner wall of the groove (19), a first tooth groove (21) is opened on one side surface of the inner wall of the inner groove (18), the sector block (17) corresponds to the annular groove (15) and is movably clamped, and the second positioning track (20) corresponds to the second positioning groove (24) and is movably clamped.

6. The oil immersion device for wear-resistant and corrosion-resistant gear processing according to claim 5, characterized in that: A transmission gear (22) is fixed to one end of the rotating collar (23), the transmission gear (22) corresponds to the first tooth groove (21) and is movably mounted, a limiting block (29) is fixed to the outer surface of the rotating collar (23), and a limiting groove (26) is provided on the inner surface of the movable plate (33), the limiting groove (26) corresponds to the limiting block (29) and is movably mounted.

7. The oil immersion device for wear-resistant and corrosion-resistant gear processing according to claim 6, characterized in that: The fixed plate (27) is fixed with a third positioning track (28) on the side surface close to the tooth block (30), the movable plate (33) is provided with an arc groove (32) on the side surface, and the top plate (31) is fixed with a fixed block (34) and a positioning rod (36) on the side surface close to the lower end, the fixed block (34) and the positioning rod (36) are symmetrically distributed, and the surface of the fixed block (34) is provided with a third positioning groove (35).

8. The oil immersion device for wear-resistant and corrosion-resistant gear processing according to claim 7, characterized in that: The third positioning track (28) corresponds to the third positioning groove (35) and is movably locked, and the positioning rod (36) corresponds to the arc groove (32) and is movably locked.

9. The oil immersion device for wear-resistant and corrosion-resistant gear processing according to claim 8, characterized in that: A storage groove (25) is provided inside the storage block (37), a notch (43) is provided near the end of the storage groove (25), a baffle (39) is fixed at one end of the telescopic ring (40), the baffle (39) is movably clamped inside the storage groove (25), a movable ring (41) is fixed at the other end of the telescopic ring (40), and the second tooth groove (42) is provided on the inner surface of the movable ring (41).

10. The oil immersion device for wear-resistant and corrosion-resistant gear processing according to claim 9, characterized in that: The baffle (39) has the same diameter as the storage groove (25), the telescopic ring (40) and the notch (43) have the same diameter, the spring (38) is movably sleeved on the outer surface of the telescopic ring (40), the movable ring (41) has the same diameter as the storage block (37), and the tooth block (30) corresponds to the second tooth groove (42) and is movably clamped.

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