CN215917912U

CN215917912U - Paint spraying equipment for surface of plastic component

Info

Publication number: CN215917912U
Application number: CN202122221630.XU
Authority: CN
Inventors: 王林爱; 李俊松
Original assignee: Linhai Huichang Plastic Co ltd
Current assignee: Linhai Huichang Plastic Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-03-01
Anticipated expiration: 2031-09-14

Abstract

The utility model discloses paint spraying equipment for the surface of a plastic component, which comprises a bottom plate, wherein a connecting plate is fixedly connected to the middle part of the left end face of the bottom plate, a paint box is arranged on the upper part of the left end face of the connecting plate, a hose is communicated with the right end of the paint box, a nozzle is communicated with the right end of the hose, a first motor is fixedly connected to the upper part of the left end face of the connecting plate, a third threaded rod is fixedly connected to the output end of the first motor, a first threaded block is connected to the outer part of the third threaded rod in a threaded manner, the nozzle is fixedly connected to the lower end face of the first threaded block, a chute plate is slidably connected to the upper part of the threaded block, and the connecting plate is fixedly connected to the left end face of the chute plate. The utility model relates to the field of plastic component processing, and solves the problems that the existing paint spraying equipment for the surface of a plastic component is easy to have paint spraying dead angles, poor in paint spraying effect and small in clamping application range.

Description

Paint spraying equipment for surface of plastic component

Technical Field

The utility model relates to the field of plastic component processing, in particular to paint spraying equipment for the surface of a plastic component.

Background

The spraying equipment is a product in an environment where the development automation of industrial technology is more and more common after the innovation is opened. With the higher degree of automation, the application of the spraying production line is wider and wider, and the spraying production line is deep into multiple fields of national economy. The spraying equipment on the market can be divided into the following according to the degree of automation: manual spraying equipment, semi-automatic spraying equipment and full-automatic spraying equipment.

The existing paint spraying equipment for the surface of the plastic component is easy to have paint spraying dead angles when the plastic component is sprayed with paint, so that the paint spraying effect is poor, and only a single type of plastic component can be clamped, so that the application range is small.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides paint spraying equipment for the surface of a plastic component, which solves the problems that the existing paint spraying equipment for the surface of the plastic component is easy to have paint spraying dead angles, poor in paint spraying effect and small in clamping application range.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a paint spraying apparatus for plastic component surface, includes the bottom plate, bottom plate left end face middle part fixedly connected with connecting plate, connecting plate left end face upper portion is equipped with the paint box, paint box right-hand member intercommunication has the hose, hose right-hand member intercommunication has the shower nozzle, the first motor of connecting plate left end face upper portion fixedly connected with, first motor output end fixedly connected with third threaded rod, the outside threaded connection of third threaded rod has first thread block, terminal surface fixedly connected with under the first thread block the shower nozzle, thread block upper portion sliding connection has the spout board, spout board left end face fixedly connected with the connecting plate.

Preferably, bottom plate up end middle part fixedly connected with motor board, motor board left end face upper portion fixedly connected with second motor, second motor output end fixedly connected with dwang, dwang right-hand member face fixedly connected with owner changes bevel gear, bottom plate up end right side middle part fixedly connected with mounting panel, mounting panel up end middle part fixedly connected with third motor, third motor output end fixedly connected with owner changes gear.

Preferably, the middle part of the right side of the upper end face of the bottom plate is fixedly connected with a connecting rod, the left end face of one end, far away from the bottom plate, of the connecting rod is fixedly connected with a fixed sleeve, the outer part of the fixed sleeve is rotatably connected with a slave rotating gear, the slave rotating gear is connected with a master rotating gear in a meshing manner, and the upper end face of the connecting rod is slidably connected with the slave rotating gear.

Preferably, from the equal fixedly connected with sleeve in the change gear up end left and right sides, sleeve inner chamber sliding connection has the telescopic link, telescopic link up end fixedly connected with rotor plate, the rotor plate middle part is rotated and is connected with the thread bush, thread bush inner chamber threaded connection has first threaded rod, first threaded rod sub-unit is rotated and is connected with fixed cover, terminal surface fixedly connected with is from changeing bevel gear under the first threaded rod, be connected with from changeing bevel gear meshing main change bevel gear, thread bush right-hand member fixedly connected with goes up the sliding cavity piece, fixed cover right-hand member upper portion fixedly connected with gliding cavity piece, go up sliding cavity piece and gliding cavity piece middle part sliding connection have the gag lever post.

Preferably, the front end face and the rear end face of the rotating plate are fixedly connected with a sliding cavity plate, the left end face and the right end face of the inner cavity of the sliding cavity plate are rotatably connected with a second threaded rod, the outer part of the second threaded rod is connected with a second threaded block in a threaded manner, the upper end surface of the second threaded block is fixedly connected with a hinge block, the upper end of the hinge block is rotationally connected with a rotating block through a pin shaft, the right end face of the rotating block is fixedly connected with a placing plate, the middle parts of the front and rear end surfaces of the placing plate are rotationally connected with an extrusion rod through the pin shaft, the end surfaces of the right ends of the extrusion rods, which are close to each other, are rotationally connected with a rotating shaft, the middle part of the rotating shaft is rotatably connected with a connecting block, the left end surface of the connecting block is fixedly connected with the rotating plate, the right end surface of the rear sliding cavity plate is fixedly connected with a fifth motor, and the output end of the fifth motor is fixedly connected with the second threaded rod, and the middle part of the placing plate is provided with a sliding groove.

Preferably, a clamping groove is arranged in the middle of the placing plate, a bidirectional threaded rod is rotatably connected to the left end and the right end of the clamping groove, a fourth motor is fixedly connected to the left end face of the bidirectional threaded rod, the fourth motor is fixedly connected to the placing plate through an L-shaped rod, sliders are respectively and threadedly connected to the left side and the right side of the outer portion of the bidirectional threaded rod, a clamping block is fixedly connected to the upper end face of each slider, a telescopic groove is arranged in the middle of each clamping block, a sliding plate is slidably connected to the inner cavity of the telescopic groove, a V-shaped block is fixedly connected to the end face, close to each other, of each sliding plate, a pressure spring is fixedly connected to the middle of the end face, far away from each sliding plate, one end, far away from each sliding plate, of the telescopic groove is fixedly connected to one end of each pressure spring, jacks are uniformly arranged at the upper end of each sliding plate, clamping posts are slidably connected to clamping blocks, and the pressure springs are sleeved on the clamping posts, the clamping block is fixedly connected to the lower end of the pressure spring, and the clamping column is fixedly connected to the upper end of the pressure spring.

(III) advantageous effects

The utility model provides a paint spraying device for the surface of a plastic component. The method has the following beneficial effects:

(1) this a paint spraying apparatus for plastic component surface, it rotates to drive main bevel gear through the second motor, it rotates from rotating bevel gear to drive, thereby it rotates to drive first threaded rod, first threaded rod makes the thread bush rise or descend, the telescopic link is flexible in the sleeve, lift up or put down the rotor plate, then start the third motor, the third motor drives main gear rotation that changes, it rotates from rotating bevel gear to drive main gear, the sleeve rotates, it is rotatory to drive the rotor plate, thereby also can go up and down when rotating bevel gear pivoted, and then be convenient for spray paint to plastic component different positions. The fifth motor drives the second thread block to move rightwards, the extrusion rod rotates clockwise, the placing plate rotates, and when the second thread block reaches the leftmost end, the placing plate is perpendicular to the rotating plate, so that the plastic component can be conveniently overturned by ninety degrees, and the paint spraying dead angle is avoided.

(2) This a paint spraying apparatus for plastic component surface, through starting the fourth motor, drive two-way threaded rod and rotate, make the slider slide, the grip block is close to each other and grasps plastic component, if plastic component is the arcwall face, then pulls the block post, and the block post stretches out from the jack in, and V type piece stretches out, then loosens the block post and recovers, inserts in the jack, accomplishes fixedly to it is fixed to be more convenient for carry out the centre gripping to the plastic component of plane or arcwall face.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is an enlarged view of the area B of FIG. 1 according to the present invention;

FIG. 4 is a schematic view of a half-section structure of the present invention;

FIG. 5 is an enlarged view of the area C of FIG. 4 according to the present invention;

FIG. 6 is a schematic side view of the present invention.

In the figure: 1. a base plate; 2. a connecting plate; 3. a first motor; 4. a paint box; 5. a chute plate; 6. a spray head; 7. a first thread block; 8. a hose; 9. a motor plate; 10. a second motor; 11. rotating the rod; 12. a main bevel gear; 13. a driven bevel gear; 14. mounting a plate; 15. a third motor; 16. a main rotating gear; 17. fixing a sleeve; 18. a first threaded rod; 19. a lower sliding cavity block; 20. a limiting rod; 21. an upper sliding cavity block; 22. a threaded sleeve; 23. a sleeve; 24. a telescopic rod; 25. a driven gear; 26. a rotating plate; 27. a sliding cavity plate; 28. a second thread block; 29. rotating the block; 30. a second threaded rod; 31. a hinged block; 32. a pin shaft; 33. placing the plate; 34. a fourth motor; 35. an L-shaped rod; 36. a clamping block; 37. a V-shaped block; 38. a chute; 39. a slider; 40. a slide plate; 41. a jack; 42. a telescopic groove; 43. a snap post; 44. a pressure spring; 45. an extrusion stem; 46. a rotating shaft; 47. connecting blocks; 48. a clamping groove; 49. a bidirectional threaded rod; 50. a fifth motor; 51. a connecting rod; 52. a third threaded rod.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

the first embodiment is as follows:

the utility model provides a paint spraying apparatus for plastic component surface, comprising a base plate 1, 1 left end face middle part fixedly connected with connecting plate 2 of bottom plate, 2 left end face upper portions of connecting plate are equipped with

paint box

4, 4 right-hand members intercommunication of paint box have

hose

8, 8 right-hand members intercommunication of hose have

shower nozzle

6, 2 left end face upper portion fixedly connected with first motor 3 of connecting plate, 3 output end fixedly connected with third threaded rod 52 of first motor, the outside threaded connection of third threaded rod 52 has first thread block 7, terminal surface fixedly connected with shower nozzle 6 under 7 first thread blocks, 7 upper portion sliding connection of first thread block have

spout board

5, 5 left end face fixedly connected with connecting plate 2 of spout board. The upper end face middle part of the bottom plate 1 is fixedly connected with a motor plate 9, the upper part of the left end face of the motor plate 9 is fixedly connected with a second motor 10, the output end of the second motor 10 is fixedly connected with a rotating rod 11, the right end face of the rotating rod 11 is fixedly connected with a main rotating bevel gear 12, the middle part of the right end face of the bottom plate 1 is fixedly connected with a mounting plate 14, the upper end face middle part of the mounting plate 14 is fixedly connected with a third motor 15, and the output end of the third motor 15 is fixedly connected with a main rotating gear 16. Connecting rod 51 is fixedly connected with in the middle part of bottom plate 1 up end right side, and connecting rod 51 keeps away from the fixed cover 17 of the one end left end face fixedly connected with of bottom plate 1, and fixed cover 17 outside is rotated and is connected with from commentaries on classics gear 25, and from commentaries on classics gear 25 meshing is connected with main commentaries on classics gear 16, and connecting rod 51 up end sliding connection has from commentaries on classics gear 25.

Example two: the difference between this embodiment and the first embodiment lies in that, wherein, the sleeve 23 is fixedly connected to the left and right sides of the upper end face of the secondary rotating gear 25, the inner cavity of the sleeve 23 is slidably connected with the telescopic rod 24, the upper end face of the telescopic rod 24 is fixedly connected with the rotating plate 26, the middle part of the rotating plate 26 is rotatably connected with the threaded sleeve 22, the inner cavity of the threaded sleeve 22 is threadedly connected with the first threaded rod 18, the lower part of the first threaded rod 18 is rotatably connected with the fixed sleeve 17, the lower end face of the first threaded rod 18 is fixedly connected with the secondary rotating bevel gear 13, the secondary rotating bevel gear 13 is engaged with the primary rotating bevel gear 12, the right end of the threaded sleeve 22 is fixedly connected with the upper sliding cavity block 21, the upper end part of the right end of the fixed sleeve 17 is fixedly connected with the lower sliding cavity block 19, and the middle parts of the upper sliding cavity block 21 and the lower sliding cavity block 19 are slidably connected with the limiting rod 20. Drive main bevel gear 12 through second motor 10 and rotate, it rotates from bevel gear 13 to drive, thereby it rotates to drive first threaded rod 18, first threaded rod 18 makes thread bush 22 rise or descend, telescopic link 24 is flexible in sleeve 23, lift rotor plate 26 or put down, then start third motor 15, third motor 15 drives main gear 16 and rotates, main gear 16 that changes drives rotates from gear 25 and rotates, sleeve 23 rotates, it is rotatory to drive rotor plate 26, thereby also can go up and down to rotor plate 26 pivoted, and then be more convenient for spray paint to the different positions of plastic component. The equal fixedly connected with sliding cavity board 27 of rotor plate 26 front and back terminal surface, the terminal surface all rotates about sliding cavity board 27 inner chamber and is connected with second threaded rod 30, second threaded rod 30 outside threaded connection has second screw block 28, end fixedly connected with hinged block 31 on second screw block 28, hinged block 31 upper end rotates through round pin axle 32 and is connected with rotor block 29, rotor block 29 right-hand member face fixedly connected with places board 33, place board 33 front and back terminal surface middle part and rotate through round pin axle 32 and be connected with extrusion pole 45, the terminal surface that extrusion pole 45 right-hand member is close to each other rotates and is connected with pivot 46, pivot 46 middle part rotates and is connected with connecting block 47, connecting block 47 left end fixedly connected with rotor plate 26, rear sliding cavity board 27 right-hand member face fixedly connected with fifth motor 50, fifth motor 50 output end fixedly connected with second threaded rod 30, it is equipped with spout 38 to place board 33 middle part. The fifth motor 50 drives the second thread block 28 to move rightwards, the extrusion rod 45 rotates clockwise, the placing plate 33 rotates, when the second thread block 28 reaches the leftmost end, the placing plate 33 is perpendicular to the rotating plate 26, accordingly, the plastic component can be conveniently overturned by ninety degrees, and the painting dead angle is avoided. A clamping groove 48 is arranged in the middle of the placing plate 33, a bidirectional threaded rod 49 is rotatably connected to the left end and the right end of the clamping groove 48, a fourth motor 34 is fixedly connected to the left end face of the bidirectional threaded rod 49, the placing plate 33 is fixedly connected to the fourth motor 34 through an L-shaped rod 35, sliders 39 are respectively and fixedly connected to the left side and the right side of the outer portion of the bidirectional threaded rod 49, clamping blocks 36 are fixedly connected to the upper end faces of the sliders 39, a telescopic groove 42 is arranged in the middle of each clamping block 36, sliding plates 40 are slidably connected to the inner cavities of the telescopic grooves 42, V-shaped blocks 37 are fixedly connected to the end faces, close to each other, of the sliding plates 40, a pressure spring 44 is fixedly connected to the middle portions, far away from each other, of the end faces, far away from the sliding plate 40, of the pressure spring 44 is fixedly connected to the telescopic groove 42, jacks 41 are uniformly arranged at the upper ends of the sliding plates 40, inner cavities of the jacks 41 are slidably connected to clamping columns 43, the clamping blocks 36 are slidably connected to the clamping columns 43, and the pressure springs 44 are sleeved on the upper ends of the clamping columns 43, the lower end of the pressure spring 44 is fixedly connected with the clamping block 36, and the upper end of the pressure spring 44 is fixedly connected with the clamping column 43. Through starting fourth motor 34, drive two-way threaded rod 49 and rotate, make slider 39 slide, grip block 36 is close to each other and grasps plastic component, if plastic component is the arcwall face, then stimulates block post 43, and block post 43 stretches out from jack 41, and V type piece 37 stretches out, then loosens block post 43 and recovers, inserts in jack 41, accomplishes fixedly to be more convenient for carry out the centre gripping fixedly to the plastic component of plane or arcwall face.

When the plastic component fixing device works, a plastic component is placed between the clamping blocks 36, the fourth motor 34 is started to drive the bidirectional threaded rod 49 to rotate, the sliding block 39 slides, the clamping blocks 36 approach to each other to clamp the plastic component, if the plastic component is an arc-shaped surface, the clamping column 43 is pulled, the clamping column 43 extends out of the insertion hole 41, the V-shaped block 37 extends out, then the clamping column 43 is loosened to restore, the clamping column 43 is inserted into the insertion hole 41 to complete fixing, then the second motor 10 is started to drive the main rotary bevel gear 12 to rotate, the auxiliary rotary bevel gear 13 is driven to rotate, so that the first threaded rod 18 is driven to rotate, the first threaded rod 18 enables the threaded sleeve 22 to ascend or descend, the telescopic rod 24 stretches in the sleeve 23 to lift or lower the rotating plate 26, then the third motor 15 is started, the third motor 15 drives the main rotary gear 16 to rotate, the main rotary gear 16 drives the auxiliary rotary gear 25 to rotate, the sleeve 23 rotates, and drives the rotating plate 26 to rotate, thereby also can go up and down to the rotor plate 26 pivoted, fifth motor 50 drives second screw thread piece 28 and moves right, the extrusion stem 45 rotates clockwise, the messenger places the board 33 and rotates, when second screw thread piece 28 reachs the leftmost end, it is perpendicular with rotor plate 26 to place board 33, carry out ninety degrees upsets to the plastics subassembly, start first motor 3 and drive first screw thread piece 7 and remove, drive the shower nozzle 6 and remove the lacquer blowout with in the lacquer case 4 behind the suitable position, can accomplish whole work of spraying paint. Whole device drives main bevel gear 12 through second motor 10 and rotates, it rotates from bevel gear 13 to drive, thereby it rotates to drive first threaded rod 18, first threaded rod 18 makes thread bush 22 rise or descend, telescopic link 24 is flexible in sleeve 23, lift rotor plate 26 or put down, then start third motor 15, third motor 15 drives main gear 16 and rotates, main gear 16 that changes drives rotates from gear 25, sleeve 23 rotates, it is rotatory to drive rotor plate 26, thereby also can go up and down when rotating rotor plate 26 pivoted, and then be convenient for spray paint to the different positions of plastic component more. The fifth motor 50 drives the second thread block 28 to move rightwards, the extrusion rod 45 rotates clockwise, the placing plate 33 rotates, when the second thread block 28 reaches the leftmost end, the placing plate 33 is perpendicular to the rotating plate 26, accordingly, the plastic component can be conveniently overturned by ninety degrees, and the painting dead angle is avoided. Through starting fourth motor 34, drive two-way threaded rod 49 and rotate, make slider 39 slide, grip block 36 is close to each other and grasps plastic component, if plastic component is the arcwall face, then stimulates block post 43, and block post 43 stretches out from jack 41, and V type piece 37 stretches out, then loosens block post 43 and recovers, inserts in jack 41, accomplishes fixedly to be more convenient for carry out the centre gripping fixedly to the plastic component of plane or arcwall face.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

Claims

1. Paint spraying apparatus for the surfaces of plastic components, comprising a base plate (1), characterized in that: bottom plate (1) left end face middle part fixedly connected with connecting plate (2), connecting plate (2) left end face upper portion is equipped with paint box (4), paint box (4) right-hand member intercommunication has hose (8), hose (8) right-hand member intercommunication has shower nozzle (6), the first motor (3) of connecting plate (2) left end face upper portion fixedly connected with, first motor (3) output end fixedly connected with third threaded rod (52), third threaded rod (52) outside threaded connection has first thread piece (7), terminal surface fixedly connected with under first thread piece (7) shower nozzle (6), first thread piece (7) upper portion sliding connection has spout board (5), spout board (5) left end face fixedly connected with connecting plate (2).

2. A painting installation for the surfaces of plastic components according to claim 1, characterized in that: bottom plate (1) up end middle part fixedly connected with motor board (9), motor board (9) left end face upper portion fixedly connected with second motor (10), second motor (10) output end fixedly connected with dwang (11), dwang (11) right-hand member face fixedly connected with owner changes bevel gear (12), bottom plate (1) up end right side middle part fixedly connected with mounting panel (14), mounting panel (14) up end middle part fixedly connected with third motor (15), third motor (15) output end fixedly connected with owner changes gear (16).

3. A painting installation for the surfaces of plastic components according to claim 2, characterized in that: bottom plate (1) up end right side middle part fixedly connected with connecting rod (51), the fixed cover (17) of one end left end face fixedly connected with of bottom plate (1) is kept away from in connecting rod (51), fixed cover (17) outside is rotated and is connected with from commentaries on classics gear (25), from commentaries on classics gear (25) meshing connection have main commentaries on classics gear (16), connecting rod (51) up end sliding connection has from commentaries on classics gear (25).

4. A painting installation for the surfaces of plastic components according to claim 3, characterized in that: the left side and the right side of the upper end surface of the driven rotating gear (25) are fixedly connected with sleeves (23), an inner cavity of the sleeve (23) is connected with a telescopic rod (24) in a sliding way, the upper end surface of the telescopic rod (24) is fixedly connected with a rotating plate (26), the middle part of the rotating plate (26) is rotationally connected with a threaded sleeve (22), the inner cavity of the threaded sleeve (22) is connected with a first threaded rod (18) in a threaded manner, the lower part of the first threaded rod (18) is rotationally connected with the fixed sleeve (17), the lower end surface of the first threaded rod (18) is fixedly connected with a secondary bevel gear (13), the auxiliary bevel gear (13) is connected with the main bevel gear (12) in a meshing way, the right end of the threaded sleeve (22) is fixedly connected with an upper sliding cavity block (21), the upper part of the right end of the fixed sleeve (17) is fixedly connected with a lower sliding cavity block (19), the middle parts of the upper sliding cavity block (21) and the lower sliding cavity block (19) are connected with a limiting rod (20) in a sliding manner.

5. A painting installation for the surfaces of plastic components according to claim 4, characterized in that: the sliding cavity plate (27) is fixedly connected to the front end face and the rear end face of the rotating plate (26), the left end face and the right end face of the inner cavity of the sliding cavity plate (27) are rotatably connected with a second threaded rod (30), a second threaded block (28) is in threaded connection with the outer portion of the second threaded rod (30), an articulated block (31) is fixedly connected to the upper end face of the second threaded block (28), the upper end of the articulated block (31) is rotatably connected with the rotating block (29) through a pin shaft (32), a placing plate (33) is fixedly connected to the right end face of the rotating block (29), an extrusion rod (45) is rotatably connected to the middle of the front end face and the rear end face of the placing plate (33) through the pin shaft (32), a rotating shaft (46) is rotatably connected to the end face, the middle of the rotating shaft (46) is rotatably connected with a connecting block (47), and the left end face of the connecting block (47) is fixedly connected with the rotating plate (26), the rear side right end face of the sliding cavity plate (27) is fixedly connected with a fifth motor (50), the output end of the fifth motor (50) is fixedly connected with the second threaded rod (30), and the middle of the placing plate (33) is provided with a sliding groove (38).

6. A painting installation for the surfaces of plastic components according to claim 5, characterized in that: the novel electric shock absorber is characterized in that a clamping groove (48) is formed in the middle of the placing plate (33), a bidirectional threaded rod (49) is rotatably connected to the left end face and the right end of the clamping groove (48), a fourth motor (34) is fixedly connected to the left end face of the bidirectional threaded rod (49), the placing plate (33) is fixedly connected to the fourth motor (34) through an L-shaped rod (35), sliders (39) are respectively and fixedly connected to the left side and the right side of the outer portion of the bidirectional threaded rod (49) in a threaded mode, clamping blocks (36) are fixedly connected to the upper end faces of the sliders (39), a telescopic groove (42) is formed in the middle of each clamping block (36), a sliding plate (40) is slidably connected to the inner cavity of each telescopic groove (42), V-shaped blocks (37) are fixedly connected to the end faces, close to the sliding plates (40), of the middle end faces, far away from each other, of the sliding plates (40) are fixedly connected to pressure springs (44), one ends, far away from the sliding plates (40), of the pressure springs (44) are fixedly connected to the telescopic grooves (42), slide (40) upper end evenly is equipped with jack (41), jack (41) inner chamber sliding connection has block post (43), block post (43) sliding connection has grip block (36), the pot head is equipped with on block post (43) pressure spring (44), pressure spring (44) lower extreme fixedly connected with grip block (36), pressure spring (44) upper end fixedly connected with block post (43).