CN115122366A

CN115122366A - Spring bed net clamping device

Info

Publication number: CN115122366A
Application number: CN202210863976.6A
Authority: CN
Inventors: 陶志兴; 何有添; 江德明; 王嘉豪; 梁德贤
Original assignee: Foshan City Kehua Smart Quilting Equipment Co Ltd
Current assignee: Foshan City Kehua Smart Quilting Equipment Co Ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-09-30

Abstract

The invention provides a spring bed net clamping device, which comprises a driving mechanism, wherein the driving mechanism is rotationally connected with a clamping mechanism, a carrier roller mechanism and a sensing module are arranged on the clamping mechanism, the sensing module is used for controlling the driving mechanism and the clamping mechanism to work, the driving mechanism drives the clamping mechanism to stop working when pressing down to the top surface of a bed net, then a motor in the clamping mechanism is controlled to run to drive clamping plates at two sides to extrude the bed net, the bed net is clamped to a certain height by virtue of friction force between the clamping plates and the bed net, then the carrier roller mechanism is controlled to support the bottom of the bed net, the added carrier roller mechanism ensures the safety of the carrying process of the bed net, the carrier roller support bottom of the bed net can not fall off, the problems that the existing spring bed net mainly adopts manual carrying for loading and unloading are solved, the working efficiency is low, the spring bed net is heavy, if the spring bed net is loaded and unloaded in a mechanical clamping mode, the clamping force is easy to deform when the bed net is clamped, the bed net is easy to fall off due to too small clamping force, and the product quality is influenced.

Description

Spring bed net clamping device

Technical Field

The invention relates to the technical field of spring cushion preparation, in particular to a spring bed net clamping device.

Background

The spring bed net is a high-grade mattress, and is formed by pressing each independent spring, then wrapping the spring by using folded non-woven fabrics, welding the spring, then connecting and arranging the spring, and finally gluing the spring and the non-woven fabrics together to form a bed net. The sponge layer is generally laid on the bed net, so that each bag of spring can be uniformly stressed, and the bed net feels more comfortable when being used. The utility model is characterized in that each spring body operates independently, supports independently and can stretch independently, so that one person in two persons lying on the mattress can turn over or leave, and the other person can not be influenced by any more, thereby ensuring the stable and comfortable sleep.

The existing spring bed net mainly adopts manual carrying to carry and feed and discharge, is low in working efficiency, is heavy, and if the spring bed net is fed and discharged in a mechanical clamping mode, the clamping force is too large and is easy to deform when the spring bed net is clamped, and the spring bed net is easy to drop due to the too small clamping force, so that the product quality is influenced.

Disclosure of Invention

The invention provides a spring bed net clamping device which is used for solving the problems that the existing spring bed net mainly adopts manual carrying for feeding and discharging, the working efficiency is low, the spring bed net is heavy, if the spring bed net is fed and discharged in a mechanical clamping mode, the clamping force is too large and is easy to deform when the spring bed net is clamped, and the bed net is easy to fall off when the clamping force is too small, so that the product quality is influenced.

In order to solve the technical problem, the invention discloses a spring bed net clamping device which comprises a driving mechanism, wherein the driving mechanism is rotationally connected with a clamping mechanism, a carrier roller mechanism and an induction module are arranged on the clamping mechanism, and the induction module is used for controlling the driving mechanism and the clamping mechanism to work.

Preferably, the driving mechanism comprises a base, the base is rotatably connected with a first supporting block, the first supporting block is rotatably connected with a first supporting arm through a first driving shaft, the first supporting arm is rotatably connected with a second supporting arm through a second driving shaft, the second supporting arm is rotatably connected with the second supporting block through a guide shaft, and the second supporting block is rotatably connected with the clamping mechanism through a mounting block.

Preferably, a first stabilizing mechanism is arranged between the first supporting block and the second supporting arm and comprises a fourth guide rod, the fourth guide rod is rotatably connected with the second supporting arm, one end, far away from the second supporting arm, of the fourth guide rod is rotatably connected with a fifth guide rod, the fifth guide rod is rotatably connected with a sixth guide rod, and the sixth guide rod is rotatably connected with the first supporting block.

Preferably, the first driving shaft and the second driving shaft are fixedly connected with the first motor, the second motor is arranged inside the second supporting block, the third driving shaft fixedly connected with the second motor is fixedly connected with the mounting block, and the mounting block is rotatably connected with the second supporting block.

Preferably, a stabilizing mechanism II is arranged between the support arm II and the support block II, the stabilizing mechanism II comprises a guide rod I, the guide rod I is rotatably connected with the support arm II, one end, far away from the support arm II, of the guide rod I is rotatably connected with the guide rod II, the guide rod II is rotatably connected with the guide rod III, and the guide rod III is rotatably connected with the support block II.

Preferably, fixture includes the frame, and the middle part fixedly connected with mounting panel one of frame, fixedly connected with installation piece on the mounting panel one, and induction module includes a plurality of photoelectric sensor, and a plurality of photoelectric sensor pass through the controller and are connected with motor two.

Preferably, fixture still includes double-end motor, double-end motor is fixed to be set up on mounting panel one, both ends are connected with the lead screw respectively around double-end motor, the screw thread section and the cooperation of lead screw cover threaded connection, cooperation cover and cooperation board fixed connection, the cylinder section and the backup pad of lead screw rotate to be connected, backup pad and frame fixed connection, cooperation board and link fixed connection, and the link about both ends symmetry be equipped with the L template, the horizontal end and the slide rail sliding connection of L template, the slide rail symmetry sets up both ends left and right sides around the frame, the vertical end and the two fixed connection of mounting panel of L template, the mounting panel two and the splint fixed connection of the left and right sides, install a plurality of photoelectric sensor on the splint of one side wherein, a plurality of photoelectric sensor pass through the controller and are connected with double-end motor.

Preferably, the roller mechanism includes two bearing rollers, and two bearing roller symmetries set up both sides around the frame, and the bearing roller about both ends respectively with a turning block fixed connection, the middle part of turning block is passed through connecting axle one and is rotated with mounting panel two and be connected, the vertical end fixed connection of mounting panel two and L template, the one end that the bearing roller was kept away from to the turning block is rotated with the driving piece and is connected, driving piece fixed mounting is served at the vertical of L template.

Preferably, the driving member is a synchronous working mechanism, and the synchronous working mechanism comprises:

the rack is fixedly connected with the frame and is arranged corresponding to the L-shaped plate, the rack is meshed with the first gear, the first gear is rotatably connected with the vertical end of the L-shaped plate through a second connecting shaft, the second connecting shaft is fixedly connected with the first bevel gear, and the first bevel gear is meshed with the second bevel gear;

the mounting plate III is fixedly connected with the vertical end of the L-shaped plate, a sliding hole for the mounting rod to penetrate through is formed in the middle of the mounting plate III, the mounting rod is fixedly connected with the mounting block III, and the mounting block III is slidably connected with the vertical end of the L-shaped plate;

the third spring is fixedly arranged between the third mounting block and the third mounting plate and sleeved on the mounting rod;

the two rotating rods are symmetrically arranged on the upper side and the lower side of the mounting block III, are rotatably connected with the sliding block, and are slidably connected with the mounting block III;

one end of the pushing rod is fixedly connected with the third mounting block, and the end, far away from the third mounting block, of the pushing rod is rotatably connected with the end, far away from the carrier roller, of the rotating block;

the meshing block is arranged on the vertical end of the L-shaped plate in a sliding mode and is arranged on one side, far away from the mounting block III, of the mounting plate III, a thread groove in the meshing block is in threaded connection with a thread block, the thread block is fixedly connected with a connecting shaft III, and the connecting shaft III is fixedly connected with the bevel gear II.

Preferably, the base is inside to be equipped with stable actuating mechanism, and stable actuating mechanism includes:

the fixing cavity is arranged inside the base and is communicated with the second through hole, the second through hole penetrates through the upper end of the base, a stabilizing shell is fixedly arranged in the fixing cavity, a stabilizing cavity is arranged inside the stabilizing shell and is communicated with the fixing cavity through the first through hole, buffer grooves are symmetrically formed in the left end and the right end of the first through hole, and the stabilizing cavity is communicated with the buffer grooves through the third through hole;

the rotating shaft is fixedly connected with the first supporting block and is rotatably connected with the first through hole and the second through hole in the base, a plurality of clamping grooves are uniformly distributed in the circumferential direction of the side end of the rotating shaft, and the clamping grooves are arranged corresponding to the buffer grooves;

the two matching blocks are respectively arranged in the buffer groove in a sliding mode, a spring IV is fixedly connected between the matching blocks and the buffer groove, one end, far away from the spring IV, of each matching block is fixedly connected with the fixture block, and the fixture block is matched with the clamping groove;

the first sliding plate is arranged in the stable cavity in a sliding mode, connecting seats are symmetrically arranged on the left side and the right side of the upper end of the first sliding plate, the connecting seats are rotatably connected with the matching wheels, the connecting seats and the matching wheels penetrate through the third through holes to enter the buffer grooves, and the matching wheels are matched with the matching grooves in the matching blocks;

the second springs are fixedly arranged between the upper end of the first sliding plate and the upper end of the stable cavity;

the rotating rod is rotatably connected with the stable cavity and fixedly connected with the cam, and the cam is in contact with the lower end of the first sliding plate;

the second gear is arranged in the fixed cavity and is fixedly connected with the rotating shaft, the second gear is meshed with the third gear, the third gear is rotatably connected with the upper end of the fixed cavity through a fixed shaft, and one end of the fixed shaft, far away from the upper end of the fixed cavity, is fixedly connected with the third bevel gear;

the driving motor is fixedly arranged at the side end of the first connecting block and fixedly connected with the motor shaft, the motor shaft penetrates through a sliding hole formed in the side end of the base to enter the fixing cavity, the motor shaft is fixedly connected with the first belt wheel and the fourth bevel gear, and the fourth bevel gear is meshed with the third bevel gear;

the second belt wheel is fixedly connected with a rotating rod penetrating through the side end of the stabilizing cavity, one end of the second belt wheel, far away from the rotating rod, is fixedly connected with a rotating sleeve, the rotating sleeve is rotatably connected with the side end of the fixing cavity, and limiting grooves I are symmetrically arranged on the upper side and the lower side of an inner cavity of the rotating sleeve;

the fixed end of the electric telescopic rod is fixedly connected with the side end of the base, the telescopic end of the electric telescopic rod is fixedly connected with the vertical end of the L-shaped block, the vertical end of the L-shaped block is fixedly connected with the second connecting block, the second connecting block is slidably connected with the first connecting block, and the first connecting block is slidably connected with the side end of the base;

the conveying belt is used for connecting the first belt wheel and the second belt wheel, tensioning wheels are symmetrically arranged on the front side and the rear side of the conveying belt, the tensioning wheels are fixedly connected with an installation seat, the installation seat is fixedly connected with the second sliding plate, the second sliding plate is slidably connected with the side end of the stabilizing shell, a second control block is slidably connected between the second sliding plates on the front side and the rear side, the second control block is fixedly connected with the first control block, and the first control block penetrates through the side end of the base and is fixedly connected with the vertical end of the L-shaped block;

the through hole penetrates through the side end of the base, the upper end and the lower end of the through hole are symmetrically provided with a second limiting groove, the through hole is correspondingly communicated with the inner cavity of the rotating sleeve, the inner cavity of the through hole and the rotating sleeve are in sliding connection with the horizontal end of the L-shaped block, the upper end and the lower end of the horizontal end of the L-shaped block are symmetrically provided with grooves, a fourth spring is fixedly arranged inside the grooves, the fourth spring is fixedly connected with a first limiting block, and the limiting block is matched with the first limiting groove or the second limiting groove.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic view of a clamping mechanism according to the present invention;

FIG. 3 is a side view of the clamping mechanism of the present invention;

FIG. 4 is a schematic structural diagram of a synchronous working mechanism of the present invention;

FIG. 5 is a schematic view of the stable driving mechanism of the present invention;

fig. 6 is a schematic view of a second top connection structure of the sliding plate of the present invention.

In the figure: 1. a first supporting block; 11. a first supporting arm; 12. a second supporting arm; 13. a second supporting block; 14. mounting blocks; 2. a clamping mechanism; 21. a frame; 22. a first mounting plate; 23. a double-headed motor; 24. a screw rod; 25. a fitting sleeve; 26. a mating plate; 27. an L-shaped plate; 28. a splint; 29. a drive member; 210. rotating the block; 211. a carrier roller; 212. a support plate; 213. a slide rail; 214. a first connecting shaft; 3. a fourth guide rod; 31. a fifth guide rod; 32. a guide rod six; 4. a first driving shaft; 41. a second driving shaft; 42. a second motor; 43. a guide shaft; 44. a first guide rod; 45. a second guide rod; 46. a third guide rod; 5. a rack; 51. a first gear; 52. a third connecting shaft; 53. a first bevel gear; 54. a second bevel gear; 55. an engagement block; 56. a thread block; 57. a thread groove; 58. mounting a rod; 59. mounting a plate III; 510. mounting a third block; 511. rotating the rod; 512. a slider; 513. a third spring; 514. a push rod; 6. a base; 61. a fixed cavity; 62. a rotating shaft; 63. a second gear; 64. a card slot; 65. a stabilizing shell; 66. a buffer tank; 67. a matching block; 68. a stability chamber; 69. a first sliding plate; 610. a second spring; 611. a connecting seat; 612. a mating wheel; 613. a third through hole; 614. a tension pulley; 615. rotating the rod; 616. a cam; 617. a matching block; 618. a clamping block; 619. a first through hole; 620. a fixed shaft; 621. a third gear; 622. a third bevel gear; 623. a fourth bevel gear; 624. a first belt wheel; 625. a drive motor; 626. a first connecting block; 627. a second connecting block; 628. a conveyor belt; 629. an L-shaped block; 630. an electric telescopic rod; 631. a through hole; 632. a second limiting groove; 633. a fourth spring; 634. a limiting block; 635. rotating the sleeve; 636. a second belt wheel; 637. a second sliding plate; 638. a second control block; 639. a mounting seat; 640. and controlling the first control block.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

In addition, the descriptions related to "first", "second", etc. in the present invention are used for descriptive purposes only, do not specifically refer to an order or sequence, and do not limit the present invention, but merely distinguish components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions and technical features between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the protection scope of the present invention.

Example 1

The embodiment of the invention provides a spring bed net clamping device, which comprises a driving mechanism, wherein the driving mechanism is rotatably connected with a clamping mechanism 2, a carrier roller mechanism and an induction module are arranged on the clamping mechanism 2, and the induction module is used for controlling the driving mechanism and the clamping mechanism 2 to work.

The working principle and the beneficial effects of the technical scheme are as follows:

by arranging the induction module, the motor in the clamping mechanism 2 and the motor connected with the clamping mechanism 2 in the driving mechanism are controlled to run simultaneously, the positions of the clamping plates on the two sides in the clamping mechanism 2 are adjusted, the clamping plates are positioned at the parallel positions on the two sides of the bed net, the driving mechanism drives the clamping mechanism 2 to stop working when pressing down to the top surface of the bed net, then the motor in the clamping mechanism 2 is controlled to run, the clamping plates on the two sides are driven to extrude the bed net, the bed net is clamped to a certain height by means of friction force between the clamping plates and the bed net, then the supporting roller mechanism is controlled to support the bottom of the bed net, the bed net is lifted and conveyed to an operation station through the driving mechanism, the deformation condition of the bed net which is greatly clamped and conveyed by an original mechanical clamp is improved, the added supporting roller mechanism ensures the safety of the conveying process of the bed net, the bed net cannot fall off due to the supporting roller support bottom, the problem that the existing spring bed net is mainly conveyed manually is solved, work efficiency is low, and the spring bed net is heavier moreover, if adopt the mechanical clamping's mode to go up the unloading to the spring bed net, the too big easy deformation of clamp force when pressing from both sides tight to the bed net, the clamp force undersize makes the bed net drop easily, influences product quality's technical problem.

Example 2

On the basis of the embodiment 1, as shown in fig. 1, the driving mechanism comprises a base 6, the base 6 is rotatably connected with a first supporting block 1, the first supporting block 1 is rotatably connected with a first supporting arm 11 through a first driving shaft 4, the first supporting arm 11 is rotatably connected with a second supporting arm 12 through a second driving shaft 41, the second supporting arm 12 is rotatably connected with a second supporting block 13 through a guiding shaft 43, and the second supporting block 13 is rotatably connected with the clamping mechanism 2 through a mounting block 14;

a first stabilizing mechanism is arranged between the first supporting block 1 and the second supporting arm 12, the first stabilizing mechanism comprises a fourth guide rod 3, the fourth guide rod 3 is rotatably connected with the second supporting arm 12, one end, far away from the second supporting arm 12, of the fourth guide rod 3 is rotatably connected with a fifth guide rod 31, the fifth guide rod 31 is rotatably connected with a sixth guide rod 32, and the sixth guide rod 32 is rotatably connected with the first supporting block 1;

the first driving shaft 4 and the second driving shaft 41 are both fixedly connected with a first motor, a second motor 42 is arranged inside the second supporting block 13, a third driving shaft fixedly connected with the second motor 42 is fixedly connected with the mounting block 14, and the mounting block 14 is rotatably connected with the second supporting block 13;

a second stabilizing mechanism is arranged between the second support arm 12 and the second support block 13 and comprises a first guide rod 44, the first guide rod 44 is rotatably connected with the second support arm 12, one end, far away from the second support arm 12, of the first guide rod 44 is rotatably connected with a second guide rod 45, the second guide rod 45 is rotatably connected with a third guide rod 46, and the third guide rod 46 is rotatably connected with the second support block 13.

when the driving mechanism works, a driving piece in the base 6 controls the first supporting block 1 to rotate, the first supporting block 1 is rotationally connected with the first driving shaft 4, the first driving shaft 4 is fixedly connected with the first supporting arm 11, the first motor connected with the first driving shaft 4 can drive the first supporting arm 11 to rotate when working, the first supporting arm 11 is rotationally connected with the second driving shaft 41, the second driving shaft 41 is fixedly connected with the second supporting arm 12, the first motor connected with the second driving shaft 41 can drive the second supporting arm 12 to rotate, the second supporting block 13 is always kept vertically downwards through the arrangement of the guide shaft 43, the clamping mechanism 2 is vertically downwards, the first stabilizing mechanism is arranged to improve the connection stability between the first supporting block 1 and the second supporting arm 12 and keep stable when the second supporting arm 12 rotates, and the second stabilizing mechanism is arranged to improve the connection stability between the second supporting arm 12 and the second supporting block 13, the second motor 42 can drive the third driving shaft to rotate so as to drive the installation block 14 to rotate, so that the clamping mechanism 2 rotates, the rotation of the second supporting arm 11 and the rotation of the second supporting arm 13 are respectively controlled, and the working range of the driving mechanism is enlarged.

Example 3

On the basis of the embodiment 2, as shown in fig. 1 to 3, the clamping mechanism 2 comprises a frame 21, a first mounting plate 22 is fixedly connected to the middle of the frame 21, a mounting block 14 is fixedly connected to the first mounting plate 22, the sensing module comprises a plurality of photoelectric sensors, and the photoelectric sensors are connected with a second motor 42 through a controller;

fixture still includes double-end motor 23, double-end motor 23 is fixed to be set up on mounting panel 22, double-end motor 23 both ends are connected with lead screw 24 respectively around, the screw thread section and the cooperation of lead screw 24 cover 25 threaded connection, cooperation cover 25 and cooperation board 26 fixed connection, the cylinder section and the backup pad 212 of lead screw 24 rotate to be connected, backup pad 212 and frame 21 fixed connection, cooperation board 26 and link fixed connection, and the both ends symmetry is equipped with L template 27 about the link, the horizontal end and the slide rail 213 sliding connection of L template 27, the slide rail 213 symmetry sets up the both ends left and right sides around frame 21, the vertical end and the two fixed connection of mounting panel of L template 27, the two mounting panels and the splint 28 fixed connection of the left and right sides, install a plurality of photoelectric sensor on the splint 28 of one side wherein, photoelectric sensor passes through the controller and is connected with double-end motor 23.

The carrier roller mechanism comprises two carrier rollers 211, the two carrier rollers 211 are symmetrically arranged on the front side and the rear side of the frame 21, the left end and the right end of each carrier roller 211 are fixedly connected with a rotating block 210, the middle part of each rotating block 210 is rotatably connected with a mounting plate II through a connecting shaft I214, one end, far away from the carrier roller 211, of each rotating block 210 is rotatably connected with a driving part 29, and the driving part 29 is fixedly arranged on the vertical end of the L-shaped plate 27;

the driver 29 is a drive cylinder.

the photoelectric sensors are arranged on the clamping plates 28, firstly, whether the distance between the clamping plates 28 on the front side and the rear side reaches a preset distance is detected, if not, the distance between the clamping plates 28 on the rear side is smaller than the distance between the two ends of the to-be-clamped surface of the bed net is detected, the controller controls the double-end motor 23 to work, so that the clamping plates 28 on the front side and the rear side reach the preset distance, the framework 21 can be enabled to be pressed down to the top surface of the bed net when the driving mechanism drives the clamping mechanism 2 to move downwards, after the clamping mechanism 2 moves downwards to a target position, the photoelectric sensors detect the distance between the clamping plates 28 and the to-be-clamped surface of the bed net, the detection values of the photoelectric sensors are kept consistent, the clamping plates 28 are located at the parallel positions on the two sides of the bed net, the detection values of the photoelectric sensors are different, the motor two 42 drives the clamping mechanism 2 to rotate, the clamping plates 28 are located at the parallel positions on the two sides of the bed net, and the position of the clamping plates 28 is adjusted, the double-end motor 23 is started to drive the screw rod 24 to rotate, the screw rod 24 drives the matching sleeve 25 to move in opposite directions, the matching sleeve 25 drives the matching plate 26 to move, the matching plate 26 drives the L-shaped plate 27 to move through the connecting frame, the slide rail 213 plays a role in guiding the movement of the L-shaped plate 27, the L-shaped plate 27 drives the clamping plate 28 and the connecting shaft 214 to move through the mounting plate two, the clamping plate 28 extrudes and fixes the bed net, the driving mechanism drives the clamping mechanism 2 to rise by a certain height, then the driving piece 29 is controlled to work, the rotating block 210 is driven to rotate, the rotating block 210 drives the carrier roller 211 to move to the lower end of the bed net, a supporting effect is achieved on the lower end of the bed net, and safety of the carrying process of the bed net is guaranteed.

Example 4

On the basis of embodiment 3, as shown in fig. 4, the driving member 29 is a synchronous working mechanism, and the synchronous working mechanism includes:

the rack 5 is fixedly connected with the frame 21, the rack 5 is arranged corresponding to the L-shaped plate 27, the rack 5 is meshed with the first gear 51, the first gear 51 is rotatably connected with the vertical end of the L-shaped plate 27 through the second connecting shaft, the second connecting shaft is fixedly connected with the first bevel gear 53, and the first bevel gear 53 is meshed with the second bevel gear 54;

the mounting plate III 59 is fixedly connected with the vertical end of the L-shaped plate 27, a sliding hole for the mounting rod 58 to pass through is formed in the middle of the mounting plate III 59, the mounting rod 58 is fixedly connected with the mounting block III 510, and the mounting block III 510 is slidably connected with the vertical end of the L-shaped plate 27;

a third spring 513, wherein the third spring 513 is fixedly arranged between the third mounting block 510 and the third mounting plate 59, and the third spring 513 is sleeved on the mounting rod 58;

the two rotating rods 511 are symmetrically arranged at the upper side and the lower side of the mounting block III 510, the rotating rods 511 are rotatably connected with the sliding block 512, and the sliding block 512 is slidably connected with the mounting block III 59;

one end of the pushing rod 514 is fixedly connected with the third mounting block 510, and one end of the pushing rod 514, which is far away from the third mounting block 510, is rotatably connected with one end of the rotating block 210, which is far away from the carrier roller 211;

the engaging block 55 is arranged at the vertical end of the L-shaped plate 27 in a sliding mode, the engaging block 55 is arranged on one side, far away from the mounting block III 510, of the mounting plate III 59, a thread groove 57 in the engaging block 55 is in threaded connection with the thread block 56, the thread block 56 is fixedly connected with the connecting shaft III 52, and the connecting shaft III 52 is fixedly connected with the bevel gear II 54.

when the spring bed net is clamped and fixed by the clamping plate 28, the clamping plate 28 moves along with the L-shaped plate 27 fixed with the second mounting plate, when the L-shaped plate 27 moves, the synchronous working mechanism is driven to move, a first gear 51 in the synchronous working mechanism is meshed with the rack 5, when the first gear 51 moves along with the L-shaped plate 27, the first gear 51 drives a first bevel gear 53 to rotate through a second connecting shaft, the first bevel gear 53 drives a second bevel gear 54 to rotate, the second bevel gear 54 drives a third connecting shaft 52 to rotate, the third connecting shaft 52 drives a threaded block 56 to rotate, the threaded block 56 rotates to drive a meshing block 55 to slide along the vertical end of the L-shaped plate 27, the meshing block 55 drives a mounting rod 58 to move, a third mounting plate 59 plays a role in guiding the movement of the mounting rod 58, the mounting rod 58 drives a third mounting block 510 to slide along the vertical end of the L-shaped plate 27, and when the third mounting block 510 moves, the rotating rod 511 rotates, the rotating rod 511 drives the sliding block 512 to slide along the mounting plate III 59, which is beneficial to improving the moving stability of the mounting block III 510, the spring III 513 is always in a compressed state, the mounting block III 510 drives the pushing rod 514 to move, the pushing rod 514 drives the rotating block 210 to rotate, the rotating block 210 drives the carrier roller 211 to move to the lower side of the spring bed net, the lower side of the spring bed net is supported, and the synchronous working mechanism is arranged to replace a driving cylinder, so that the cost is saved, when the spring bed net is clamped and fixed by the clamping plates 28 and the carrier rollers 211, the spring bed net is driven to move upwards after the spring bed net is clamped and fixed by the clamping plates 28, at the moment, the carrier rollers 211 do not move to the lower side of the spring bed net, then the clamping plates 28 move again, further centre gripping is fixed to the spring bed net, drives bearing roller 211 through synchronous operating mechanism simultaneously and removes the downside to the spring bed net, supports the downside of spring bed net.

Example 5

On the basis of embodiment 2, as shown in fig. 5 to 6, a stabilizing driving mechanism is provided inside the base 6, and the stabilizing driving mechanism includes:

the fixing cavity 61 is arranged inside the base 6, the fixing cavity 61 is communicated with the second through hole, the second through hole penetrates through the upper end of the base 6, a stabilizing shell 65 is fixedly arranged in the fixing cavity 61, a stabilizing cavity 68 is arranged inside the stabilizing shell 65, the stabilizing cavity 68 is communicated with the fixing cavity 61 through a first through hole 619, buffer grooves 66 are symmetrically arranged at the left end and the right end of the first through hole 619, and the stabilizing cavity 68 is communicated with the buffer grooves 66 through a third through hole 613;

the rotating shaft 62 is fixedly connected with the first supporting block 1, the rotating shaft 62 is rotatably connected with the first through hole 619 and the second through hole 619 in the base 6, a plurality of clamping grooves 64 are uniformly distributed on the circumferential direction of the side end of the rotating shaft 62, and the clamping grooves 64 are arranged corresponding to the buffer grooves 66;

the two matching blocks 617 are respectively arranged in the buffer groove 66 in a sliding manner, a spring IV 67 is fixedly connected between the matching blocks 617 and the buffer groove 66, one end of the matching block 617, which is far away from the spring IV 67, is fixedly connected with a fixture block 618, and the fixture block 618 is matched with the clamping groove 64;

the first sliding plate 69 is slidably arranged in the stable cavity 68, connecting seats 611 are symmetrically arranged on the left side and the right side of the upper end of the first sliding plate 69, the connecting seats 611 are rotatably connected with the matching wheel 612, the connecting seats 611 and the matching wheel 612 penetrate through the third through hole 613 to enter the buffer groove 66, and the matching wheel 612 is matched with the matching groove in the matching block 617;

a plurality of second springs 610, wherein the plurality of second springs 610 are fixedly arranged between the upper end of the sliding plate I69 and the upper end of the stable cavity 68;

a rotating rod 615, wherein the rotating rod 615 is rotatably connected with the stabilizing cavity 68, the rotating rod 615 is fixedly connected with a cam 616, and the cam 616 is contacted with the lower end of the first sliding plate 69;

the second gear 63 is arranged in the fixed cavity 61, the second gear 63 is fixedly connected with the rotating shaft 62, the second gear 63 is meshed with the third gear 621, the third gear 621 is rotatably connected with the upper end of the fixed cavity 61 through a fixed shaft 620, and one end, away from the upper end of the fixed cavity 61, of the fixed shaft 620 is fixedly connected with a third bevel gear 622;

the driving motor 625 is fixedly installed at the side end of the first connecting block 626, the driving motor 625 is fixedly connected with a motor shaft, the motor shaft penetrates through a sliding hole formed in the side end of the base 6 to enter the fixing cavity 61, the motor shaft is fixedly connected with the first belt wheel 624 and a fourth bevel gear 623, and the fourth bevel gear 623 is meshed with the third bevel gear 622;

the second belt wheel 636 is fixedly connected with a rotating rod 615 penetrating through the side end of the stabilizing cavity 68, one end, far away from the rotating rod 615, of the second belt wheel 636 is fixedly connected with a rotating sleeve 635, the rotating sleeve 635 is rotatably connected with the side end of the fixing cavity 61, and limiting grooves I are symmetrically formed in the upper side and the lower side of an inner cavity of the rotating sleeve 635;

the fixed end of the electric telescopic rod 630 is fixedly connected with the side end of the base 6, the telescopic end of the electric telescopic rod 630 is fixedly connected with the vertical end of the L-shaped block 629, the vertical end of the L-shaped block 629 is fixedly connected with the second connecting block 627, the second connecting block 627 is slidably connected with the first connecting block 626, and the first connecting block 626 is slidably connected with the side end of the base 6;

the conveying belt 628 is used for connecting the first belt wheel 624 with the second belt wheel 636, tensioning wheels 614 are symmetrically arranged on the front side and the rear side of the conveying belt 628, the tensioning wheels 614 are fixedly connected with an installation seat 639, the installation seat 639 is fixedly connected with the second sliding plates 637, the second sliding plates 637 are slidably connected with the side end of the stabilizing shell 65, a second control block 638 is slidably connected between the second sliding plates 637 on the front side and the rear side, the second control block 638 is fixedly connected with the first control block 640, and the first control block 640 penetrates through the side end of the base 6 and is fixedly connected with the vertical end of the L-shaped block 629;

through-hole 631, through-hole 631 runs through the setting at the side of base 6, and the upper and lower both ends symmetry of through-hole 631 is equipped with two spacing grooves 632, through-hole 631 corresponds the intercommunication with the inside cavity of rotating cover 635, and through-hole 631, the inside cavity of rotating cover 635 and the horizontal end sliding connection of L type piece 629, the upper and lower both ends symmetry of the horizontal end of L type piece 629 is equipped with the recess, the recess is inside to be fixed to be equipped with spring four 633, spring four 633 and stopper 634 fixed connection, stopper 634 and the cooperation of spacing groove one or two spacing grooves 632.

when the first support block 1 is controlled to rotate, the driving motor 625 works to drive the motor shaft to drive, the motor shaft drives the first belt wheel 624 and the fourth bevel gear 623 to rotate, the fourth bevel gear 623 drives the third bevel gear 622 to rotate, the third bevel gear 622 drives the fixed shaft 620 to rotate, the fixed shaft 620 drives the third gear 621 to rotate, the third gear 621 drives the second gear 63 to rotate, the second gear 63 drives the rotating shaft 62 to rotate, the rotating shaft 62 can drive the first support block 1 to rotate, the first belt wheel 624 idles, the second belt wheel 636 cannot be driven by the conveyor belt 628 to rotate, after the first support block 1 rotates by a target angle, the electric telescopic rod 630 extends to drive the L-shaped block 629 to move, the L-shaped block 629 drives the first control block 640 and the second connection block 627 to move, the second connection block 627 moves to drive the first connection block 626 to slide downwards along the side end of the base 6, so as to drive the driving motor 625 to move downwards, and enable the fourth bevel gear 623 to be disengaged from the third bevel gear 622, the phenomenon that the driving motor 625 is started by mistake to cause the first supporting block 1 to deflect is avoided, the first control block 640 moves to drive the second control block 638 to move, so that the second sliding plate 637 is driven to slide along the side end of the stabilizing shell 65 to drive the tensioning wheel 614 to move, the conveying belt 628 is in a tensioning state, the L-shaped block 629 drives the limiting block 634 to be separated from the first limiting groove and matched with the second limiting groove 632, so that the rotating sleeve 635 can rotate freely, then the first belt wheel 624 is controlled to rotate, the second belt wheel 636 is driven to rotate by the conveying belt 628, the second belt wheel 636 drives the rotating rod 615 to rotate, the rotating rod 615 drives the cam 616 to rotate, the protruding end of the cam 616 is contacted with the lower end of the first sliding plate 69, the first sliding plate 639 is pushed to slide upwards along the stabilizing cavity 68 to drive the connecting seat 611 to move upwards, the connecting seat 611 drives the matching wheel 612 to move upwards, the matching wheel 612 is matched with the matching groove, so that the matching blocks 617 move towards each other, the engaging block 617 drives the latching block 618 to move, so that the latching block 618 is engaged with the latching groove 64, the rotating shaft 62 is kept fixed, the stability of the rotating shaft 62 is improved, thereby improving the stability of the supporting block I1, avoiding the deflection of the supporting block I1 from affecting the clamping effect of the spring bed net clamping device, if the rotating shaft 62 needs to be controlled to rotate again, the convex end of the control cam 616 is separated from being contacted with the lower end of the sliding plate I69, under the elastic action of the fourth spring 67 and the second spring 610, the latch 618 and the sliding plate one 69 are restored to the original positions, then the electric telescopic rod 630 is controlled to shorten, the bevel gear four 623 is driven to be meshed with the bevel gear three 622, the limit block 634 is matched with the limit groove I, such that the rotating sleeve 635 cannot rotate, the tension wheel 614 moves, the conveyor 628 is allowed to relax, the first belt wheel 624 cannot rotate to drive the second belt wheel 636 to rotate, and the normal rotation of the rotating shaft 62 is ensured.

Example 6

On the basis of embodiment 2, the method further comprises the following steps:

a rotation speed sensor: the rotating speed sensor is arranged on the output shaft of the double-head motor 23 and is used for detecting the rotating speed of the output shaft of the double-head motor 23;

an alarm device: the alarm is arranged outside the second supporting arm 13;

an alarm controller: the alarm controller is electrically connected with the force sensor and the alarm;

the alarm controller controls the alarm to work based on the detection value of the force sensor, and comprises the following steps:

step 1: the alarm controller calculates the theoretical extrusion force of the clamping plate 28 on the spring bed net according to the rotating speed of the output shaft of the double-head motor 23 detected by the rotating speed sensor and a formula (1);

wherein F is the theoretical extrusion force of the clamping plate 28 on the spring bed net, P is the working power of the double-head motor 23, N is the detection value of the rotating speed sensor, R is the thread pitch diameter of the screw rod 24, tan is the tangent, alpha is the helix angle of the screw rod 24, and beta is the friction angle between the screw rod 24 and the matching sleeve 25;

step 2: the alarm controller calculates the clamping stability coefficient of the clamping mechanism 2 to the spring bed net according to the theoretical extrusion force of the clamping plate 28 to the spring bed net calculated in the step 1 and a formula (2), compares the clamping stability coefficient of the clamping mechanism 2 to the spring bed net with a preset stability coefficient, and controls the alarm to alarm if the clamping stability coefficient is smaller than the preset stability coefficient;

wherein K is the clamping stability coefficient of the clamping mechanism 2 to the spring bed net, mu is the friction coefficient between the clamping plate 28 and the clamping spring bed net, M is the weight of the spring bed net, g is the gravity acceleration, and the value is 9.8M/s ² ；

Wherein, in the formula (1), p is 200W, and N is 1S ^-1 (ii) a R is 5cm, alpha is 30 degrees, beta is 10 degrees, and F is calculated to obtain 6712.8N;

mu in the formula (2) is 0.2, M is 50Kg, K is calculated to obtain 2.68, the clamping stability coefficient of the clamping mechanism 2 to the spring bed net is the ratio of the connecting force of the clamping plate 28 and the spring bed net to the gravity of the spring bed net, if the connecting force of the clamping plate 28 and the spring bed net is greater than the gravity of the spring bed net, the spring bed net cannot fall, and the alarm does not give an alarm.

a rotating speed sensor is arranged on an output shaft of the double-head motor 23 and is used for detecting the rotating speed of the output shaft of the double-head motor 23; the alarm controller calculates theoretical extrusion force of the clamping plate 28 on the spring bed net according to the rotating speed of the output shaft of the double-end motor 23 detected by the rotating speed sensor and a formula (1), then calculates the clamping stability coefficient of the clamping mechanism 2 on the spring bed net according to the theoretical extrusion force of the clamping plate 28 on the spring bed net calculated in the step 1 and the formula (2), compares the clamping stability coefficient of the clamping mechanism 2 on the spring bed net with a preset stability coefficient, controls the alarm to give an alarm if the clamping stability coefficient is smaller than the preset stability coefficient, reminds a user that the clamping plate 28 does not clamp the spring bed net, the spring bed net has a falling risk, adjusts the rotating speed of the double-end motor 23, and controls the clamping plate 28 to slowly clamp the spring bed net, so that the theoretical extrusion force of the clamping plate 28 on the spring bed net is improved, and the spring bed net is prevented from falling.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The spring bed net clamping device is characterized by comprising a driving mechanism, wherein the driving mechanism is rotatably connected with a clamping mechanism (2), a carrier roller mechanism and an induction module are installed on the clamping mechanism (2), and the induction module is used for controlling the driving mechanism and the clamping mechanism (2) to work.

2. The device for clamping the net of the spring bed as claimed in claim 1, wherein the driving mechanism comprises a base (6), the base (6) is rotatably connected with the first supporting block (1), the first supporting block (1) is rotatably connected with the first supporting arm (11) through the first driving shaft (4), the first supporting arm (11) is rotatably connected with the second supporting arm (12) through the second driving shaft (41), the second supporting arm (12) is rotatably connected with the second supporting block (13) through the guiding shaft (43), and the second supporting block (13) is rotatably connected with the clamping mechanism (2) through the mounting block (14).

3. The device for clamping the net of the spring bed as claimed in claim 2, wherein a first stabilizing mechanism is arranged between the first supporting block (1) and the second supporting arm (12), the first stabilizing mechanism comprises a fourth guide rod (3), the fourth guide rod (3) is rotatably connected with the second supporting arm (12), one end of the fourth guide rod (3) far away from the second supporting arm (12) is rotatably connected with a fifth guide rod (31), the fifth guide rod (31) is rotatably connected with a sixth guide rod (32), and the sixth guide rod (32) is rotatably connected with the first supporting block (1).

4. The spring bed net clamping device as claimed in claim 2, characterized in that the first driving shaft (4) and the second driving shaft (41) are fixedly connected with a first motor, the second motor (42) is arranged in the second supporting block (13), a third driving shaft fixedly connected with the second motor (42) is fixedly connected with the mounting block (14), and the mounting block (14) is rotatably connected with the second supporting block (13).

5. The device for clamping the net of the spring bed as claimed in claim 2, wherein a second stabilizing mechanism is arranged between the second supporting arm (12) and the second supporting block (13), the second stabilizing mechanism comprises a first guiding rod (44), the first guiding rod (44) is rotatably connected with the second supporting arm (12), one end of the first guiding rod (44) far away from the second supporting arm (12) is rotatably connected with a second guiding rod (45), the second guiding rod (45) is rotatably connected with a third guiding rod (46), and the third guiding rod (46) is rotatably connected with the second supporting block (13).

6. The device for clamping the spring bed net according to claim 4, wherein the clamping mechanism (2) comprises a frame (21), a first mounting plate (22) is fixedly connected to the middle of the frame (21), a mounting block (14) is fixedly connected to the first mounting plate (22), the sensing module comprises a plurality of photoelectric sensors, and the photoelectric sensors are connected with a second motor (42) through a controller.

7. The spring bed net clamping device as claimed in claim 6, characterized in that the clamping mechanism further comprises a double-head motor (23), the double-head motor (23) is fixedly arranged on the first mounting plate (22), the front end and the rear end of the double-head motor (23) are respectively connected with a screw rod (24), the thread section of the screw rod (24) is in threaded connection with a matching sleeve (25), the matching sleeve (25) is fixedly connected with a matching plate (26), the cylindrical section of the screw rod (24) is rotatably connected with a support plate (212), the support plate (212) is fixedly connected with the frame (21), the matching plate (26) is fixedly connected with the connecting frame, the left end and the right end of the connecting frame are symmetrically provided with L-shaped plates (27), the horizontal end of the L-shaped plates (27) is slidably connected with a slide rail (213), the slide rail (213) is symmetrically arranged on the left side and the right side of the front end and the rear end of the frame (21), and the vertical end of the L-shaped plates (27) is fixedly connected with the second mounting plate, the mounting plates II on the left side and the right side are fixedly connected with the clamping plate (28), a plurality of photoelectric sensors are mounted on the clamping plate (28) on one side, and the photoelectric sensors are connected with the double-head motor (23) through the controller.

8. The spring bed net clamping device as claimed in claim 7, characterized in that the roller mechanism comprises two rollers (211), the two rollers (211) are symmetrically arranged at the front and rear sides of the frame (21), the left and right ends of the rollers (211) are respectively and fixedly connected with a rotating block (210), the middle part of the rotating block (210) is rotatably connected with a mounting plate I (214) through a connecting shaft I, the mounting plate II is fixedly connected with the vertical end of the L-shaped plate (27), one end of the rotating block (210) far away from the rollers (211) is rotatably connected with a driving part (29), and the driving part (29) is fixedly arranged at the vertical end of the L-shaped plate (27).

9. A device for clamping a spring bed wire as defined in claim 8, characterized in that the drive member (29) is a synchronous operating mechanism comprising:

the rack (5) is fixedly connected with the frame (21), the rack (5) is arranged corresponding to the L-shaped plate (27), the rack (5) is meshed with the first gear (51), the first gear (51) is rotatably connected with the vertical end of the L-shaped plate (27) through the second connecting shaft, the second connecting shaft is fixedly connected with the first bevel gear (53), and the first bevel gear (53) is meshed with the second bevel gear (54);

the mounting plate III (59) is fixedly connected with the vertical end of the L-shaped plate (27), a sliding hole for the mounting rod (58) to penetrate through is formed in the middle of the mounting plate III (59), the mounting rod (58) is fixedly connected with the mounting block III (510), and the mounting block III (510) is slidably connected with the vertical end of the L-shaped plate (27);

the spring III (513) is fixedly arranged between the mounting block III (510) and the mounting plate III (59), and the spring III (513) is sleeved on the mounting rod (58);

the two rotating rods (511) are symmetrically arranged on the upper side and the lower side of the mounting block III (510), the rotating rods (511) are rotatably connected with the sliding block (512), and the sliding block (512) is slidably connected with the mounting block III (59);

one end of the pushing rod (514) is fixedly connected with the third mounting block (510), and one end, far away from the third mounting block (510), of the pushing rod (514) is rotatably connected with one end, far away from the carrier roller (211), of the rotating block (210);

the meshing block (55) is arranged at the vertical end of the L-shaped plate (27) in a sliding mode, the meshing block (55) is arranged on one side, away from the mounting block III (510), of the mounting plate III (59), a thread groove (57) in the meshing block (55) is in threaded connection with the thread block (56), the thread block (56) is fixedly connected with the connecting shaft III (52), and the connecting shaft III (52) is fixedly connected with the bevel gear II (54).

10. A trampoline net holding device according to claim 2, wherein a stabilizing drive mechanism is provided inside the base (6), the stabilizing drive mechanism comprising:

the fixing cavity (61) is arranged inside the base (6), the fixing cavity (61) is communicated with the second through hole, the second through hole penetrates through the upper end of the base (6), a stabilizing shell (65) is fixedly arranged in the fixing cavity (61), a stabilizing cavity (68) is arranged inside the stabilizing shell (65), the stabilizing cavity (68) is communicated with the fixing cavity (61) through a first through hole (619), buffer grooves (66) are symmetrically arranged at the left end and the right end of the first through hole (619), and the stabilizing cavity (68) is communicated with the buffer grooves (66) through a third through hole (613);

the rotating shaft (62) is fixedly connected with the first supporting block (1), the rotating shaft (62) is rotatably connected with the first through hole (619) and the second through hole in the base (6), a plurality of clamping grooves (64) are uniformly distributed in the circumferential direction of the side end of the rotating shaft (62), and the clamping grooves (64) are arranged corresponding to the buffer grooves (66);

the two matching blocks (617) are respectively arranged in the buffer groove (66) in a sliding mode, a spring IV (67) is fixedly connected between each matching block (617) and the buffer groove (66), one end, far away from the spring IV (67), of each matching block (617) is fixedly connected with the fixture block (618), and the fixture block (618) is matched with the clamping groove (64);

the first sliding plate (69), the first sliding plate (69) is arranged in the stable cavity (68) in a sliding mode, connecting seats (611) are symmetrically arranged on the left side and the right side of the upper end of the first sliding plate (69), the connecting seats (611) are rotatably connected with the matching wheels (612), the connecting seats (611) and the matching wheels (612) penetrate through the third through holes (613) to enter the buffer groove (66), and the matching wheels (612) are matched with the matching grooves in the matching blocks (617);

the springs (610) are fixedly arranged between the upper end of the sliding plate I (69) and the upper end of the stable cavity (68);

the rotating rod (615), the rotating rod (615) is rotatably connected with the stable cavity (68), the rotating rod (615) is fixedly connected with the cam (616), and the cam (616) is contacted with the lower end of the sliding plate I (69);

the second gear (63) is arranged in the fixed cavity (61), the second gear (63) is fixedly connected with the rotating shaft (62), the second gear (63) is meshed with the third gear (621), the third gear (621) is rotatably connected with the upper end of the fixed cavity (61) through a fixed shaft (620), and one end, far away from the upper end of the fixed cavity (61), of the fixed shaft (620) is fixedly connected with the third bevel gear (622);

the driving motor (625), the driving motor (625) is fixedly installed at the side end of the first connecting block (626), the driving motor (625) is fixedly connected with a motor shaft, the motor shaft penetrates through a sliding hole formed in the side end of the base (6) to enter the fixing cavity (61), the motor shaft is fixedly connected with the first belt wheel (624) and the fourth bevel gear (623), and the fourth bevel gear (623) is meshed with the third bevel gear (622);

the second belt wheel (636), the second belt wheel (636) is fixedly connected with a rotating rod (615) penetrating through the side end of the stabilizing cavity (68), one end, far away from the rotating rod (615), of the second belt wheel (636) is fixedly connected with a rotating sleeve (635), the rotating sleeve (635) is rotatably connected with the side end of the fixing cavity (61), and limiting grooves I are symmetrically formed in the upper side and the lower side of an inner cavity of the rotating sleeve (635);

the fixing end of the electric telescopic rod (630) is fixedly connected with the side end of the base (6), the telescopic end of the electric telescopic rod (630) is fixedly connected with the vertical end of the L-shaped block (629), the vertical end of the L-shaped block (629) is fixedly connected with the second connecting block (627), the second connecting block (627) is slidably connected with the first connecting block (626), and the first connecting block (626) is slidably connected with the side end of the base (6);

the conveying belt (628) is used for connecting a first belt wheel (624) with a second belt wheel (636), tensioning wheels (614) are symmetrically arranged on the front side and the rear side of the conveying belt (628), the tensioning wheels (614) are fixedly connected with an installation seat (639), the installation seat (639) is fixedly connected with a second sliding plate (637), the second sliding plate (637) is slidably connected with the side end of the stabilizing shell (65), a second control block (638) is slidably connected between the second sliding plates (637) on the front side and the rear side, the second control block (638) is fixedly connected with a first control block (640), and the first control block (640) penetrates through the side end of the base (6) and is fixedly connected with the vertical end of the L-shaped block (629);

through hole (631), through hole (631) run through the setting in the side of base (6), and the upper and lower both ends symmetry of through hole (631) is equipped with spacing groove two (632), through hole (631) corresponds the intercommunication with the inside cavity of rotating sleeve (635), and through hole (631), the inside cavity of rotating sleeve (635) and the horizontal end sliding connection of L type piece (629), the upper and lower both ends symmetry of the horizontal end of L type piece (629) are equipped with the recess, the fixed spring four (633) that is equipped with in recess inside, spring four (633) and stopper (634) fixed connection, stopper (634) and spacing groove one or the cooperation of spacing groove two (632).