CN112265868A

CN112265868A - Guide wheel thread falling prevention mechanism for spinning winding

Info

Publication number: CN112265868A
Application number: CN202011057412.0A
Authority: CN
Inventors: 宋旭
Original assignee: Jinfeng Hardware Factory Juzhen Dashi City Xinchang County
Current assignee: Zaoyang Zhengyue Textile Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-01-26
Anticipated expiration: 2040-09-29
Also published as: CN112265868B

Abstract

The invention relates to the technical field of textile winding falling prevention, in particular to a guide wheel falling prevention mechanism for textile winding, which comprises a rotating plate, a wire guide wheel, a balancing weight, a vertical plate and a rubber plate, wherein the rotating plate is rotated to separate the rotating plate from the wire guide wheel, then a spinning thread is placed on the wire guide wheel through a gap between the rotating plate and the wire guide wheel, then the rotating plate is loosened, the rotating plate rotates downwards under the action of the gravity of the balancing weight until the lower end of the rotating plate is attached to the upper end of the wire guide wheel, the upper side and the left side and the right side of the guided spinning thread are limited through the rotating plate and the vertical plate, the spinning thread is prevented from jumping over the wire guide wheel in the moving process, in addition, the rubber plate can be arranged at the upper end of the spinning thread to limit the range of the vertical jumping of the spinning thread and can buffer the spinning thread jumping up and down, and the universal use can be realized only by adjusting the angles of the rotating plate and the vertical plate, the application range is enlarged, and the use effect is good.

Description

Guide wheel thread falling prevention mechanism for spinning winding

Technical Field

The invention discloses a guide wheel anti-falling mechanism for textile winding, and belongs to the technical field of textile winding anti-falling.

Background

In order to guarantee that the spinning thread is not wound during the spinning winding, the spinning thread needs to be wound around one to two groups of guide wheels and then wound after being straightened, the winding compactness is improved, but most of the existing guide wheels are not provided with a device for preventing the spinning thread from falling off, and the spinning thread falls off from the guide wheels easily when the guide wheels rotate, so that the reliability of the winding is reduced.

China patent publication No. CN108840168A prevents that line is taken turns to through square board and two sets of little spring in weaving wire winding guide pulley prevents that the line is spacing in the wire winding device, realize preventing the line function, this technical scheme has two problems, firstly, the line of spinning is beated between two sets of little springs and square board and when contacting with little spring, the line of spinning is blocked into in the little spring easily, the use of line is prevented in the influence, secondly, this prevents that horizontal interval between two little springs is the same in the wire winding device, can not adjust, to the wire winding wheel of different thickness, can not be general, application range is narrow.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a guide wheel anti-falling mechanism for spinning winding.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a mechanism of preventing falling line for wire-wound leading wheel weaves, includes the curb plate, the curb plate left end passes through the center pin and rotates installation wire wheel, the fixed vertical board of curb plate left end, vertical board slidable mounting is in wire wheel upper end, vertical board left end rotates and connects the rotor plate, rotor plate lower extreme and wire wheel upper end left side position laminating, the fixed balancing weight of rotor plate left side lower extreme, the balancing weight is established in the wire wheel left side, be equipped with the rubber slab between rotor plate lower extreme right part position and the vertical board left end, the rubber slab is installed at the wire wheel upside.

Specifically, a first groove is formed in the lower end of the vertical plate and penetrates through the front end and the rear end of the vertical plate, a roller is arranged inside the first groove and is arranged at the upper right end of the wire guide wheel, a first rotating shaft is arranged inside the roller and is rotatably connected with the vertical plate.

Specifically, a shaft lever is fixed at the left end of the rotating plate, a cylindrical barrel is installed at the annular outer end of the shaft lever through a bearing and is arranged at the left end of the rotating plate, the cylindrical barrel is attached to the left part of the upper end of the wire guide wheel, the left lower end of the shaft lever is fixedly connected with a balancing weight through a connecting rope, and the cylindrical barrel is arranged at the lower side of the rubber plate.

Specifically, the left end of the side plate is fixedly connected with a connecting plate through a bolt, the left end of the connecting plate is fixedly provided with a transverse connecting plate, and the transverse connecting plate is fixedly arranged at the right end of the vertical plate.

Specifically, a second groove is formed in the upper end of the vertical plate and penetrates through the left end and the right end of the vertical plate, a second rotating shaft horizontally arranged is arranged inside the rotating plate, and the front end and the rear end of the second rotating shaft are respectively connected with the front wall and the rear wall inside the second groove in a rotating mode.

Specifically, the left end of the rubber plate is detachably connected with the rotating plate, and the right end of the rubber plate is detachably connected with the vertical plate.

Specifically, first draw-in groove is seted up to the rotor plate lower extreme, the rubber slab left end extends to inside the first draw-in groove, the second draw-in groove is seted up to the rotor plate upper end, the second draw-in groove is established in first draw-in groove upper end, the even post of rubber slab left end installation, even the post is established and is extended from second draw-in groove upper end in the second draw-in groove is inside, rotor plate upper end fixed locking piece, and retaining member and even post locking connection.

Specifically, the locking piece is including fixing the fixed block in the rotor plate upper end, the fixed first spring of fixed block left end, the couple is fixed to first spring left end, even upper portion position sets up the hanging hole in the post, the couple hook is inside to the hanging hole.

Specifically, first spread groove, second spread groove and third spread groove are seted up to vertical board left end, first spread groove is established at second spread groove left end, the third spread groove is established in first spread groove and second spread groove upper end, and first spread groove, second spread groove and third spread groove intercommunication, rubber slab right-hand member lower part position inserted block, the rubber slab upper end is leaned on right side position fixed dog, the fixed second spring in the inside top of third spread groove, second spring lower extreme fixed pressing plate, both ends all laminate with inside front and back two walls of third spread groove around the clamp plate, the fixed hand push pedal of clamp plate left end and hand push plate are established at the rubber slab upside, the rubber slab right-hand member extends to inside the first spread groove, the clamp plate dress is in rubber slab and dog upper end, the inserted block extends to inside the second spread groove.

The invention has the beneficial effects that: 1. the guide wheel anti-falling mechanism for spinning winding of the invention rotates the rotating plate when in use to separate the rotating plate from the guide wheel, then the spinning thread is arranged on the wire guide wheel through the gap between the rotating plate and the wire guide wheel, then the rotating plate is loosened, the rotating plate rotates downwards under the action of the gravity of the balancing weight until the lower end of the rotating plate is attached to the upper end of the wire guide wheel, the upper side and the left and the right sides of the guided spinning thread are limited by the rotating plate and the vertical plate, so that the spinning thread is prevented from jumping from the thread guide wheel in the moving process, in addition, the rubber plate can be arranged at the upper end of the spinning line to limit the range of the vertical jumping of the spinning line and can buffer the vertical jumping spinning line, for the wire guide wheels with different widths, the universal use can be realized only by adjusting the angles of the rotating plate and the vertical plate, the use range is expanded, and the use effect is good.

2. According to the guide wheel anti-falling mechanism for spinning and winding, when the guide wheel rotates under the action of spinning, the roller wheel is in rolling connection with the guide wheel, the friction force is small, the abrasion of the guide wheel and the roller wheel is reduced, the service lives of the guide wheel and the roller wheel are prolonged, the cylindrical barrel can rotate relative to the shaft lever and the rotating plate, when the guide wheel rotates under the action of spinning, the cylindrical barrel is in rolling connection with the guide wheel, the friction force is small, the abrasion of the guide wheel and the cylindrical barrel is reduced, and the service lives of the guide wheel and the cylindrical barrel are prolonged.

3. According to the guide wheel anti-falling mechanism for textile winding, the rubber plate is detachably connected with the rotating plate and the vertical plate, the first spring is in a pulling state, the pulling force of the first spring acts on the hook to enable the hook to be stably hooked with the connecting column, the hook is separated from the connecting column during dismounting, the second spring is in a compression state, the elastic force of the second spring acts on the pressing plate, the pressing plate is used for extruding the rubber plate and the hand push plate, the inserting block is pressed into the second connecting groove, the connection of the rubber plate and the vertical plate is achieved, during dismounting, the pressing plate only needs to be moved upwards, then the rubber plate is moved upwards until the inserting block is moved out of the second connecting groove, and then the rubber plate is horizontally moved leftwards to separate the rubber plate from the vertical plate.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a perspective view of a guide wheel thread-dropping prevention mechanism for textile winding according to the present invention;

FIG. 2 is a front view of a guide wheel thread drop prevention mechanism for textile winding according to the present invention;

FIG. 3 is a first state view of a guide wheel thread drop prevention mechanism for textile winding according to the present invention;

FIG. 4 is a second state view of a guide wheel thread drop prevention mechanism for textile winding according to the present invention;

FIG. 5 is a cross-sectional view of the connection of a rubber plate, a vertical plate and a rotating plate in the guide wheel thread-dropping prevention mechanism for spinning winding according to the present invention;

FIG. 6 is a perspective view of a vertical plate of the guide wheel thread-dropping prevention mechanism for textile winding according to the present invention;

FIG. 7 is a cross-sectional view of a vertical plate of a guide wheel thread falling prevention mechanism for textile winding according to the present invention.

In the figure: 1. curb plate, 2, wire guide wheel, 3, balancing weight, 4, a cylinder, 5, rotor plate, 6, vertical board, 7, horizontal board, 8, rubber slab, 21, center pin, 41, axostylus axostyle, 60, gyro wheel, 61, first connecting groove, 62, second connecting groove, 63, third connecting groove, 81, even post, 82, couple, 83, first spring, 84, fixed block, 85, inserted block, 86, dog, 87, clamp plate, 88, second spring, 89, hand push pedal.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-7, the present invention provides a technical solution: a guide wheel anti-falling mechanism for spinning winding comprises a side plate 1, wherein a guide wire wheel 2 is rotatably installed at the left end of the side plate 1 through a central shaft 21, a vertical plate 6 is fixed at the left end of the side plate 1, the vertical plate 6 is slidably installed at the upper end of the guide wire wheel 2, a rotating plate 5 is rotatably connected at the left end of the vertical plate 6, the lower end of the rotating plate 5 is attached to the left position of the upper end of the guide wire wheel 2, a balancing weight 3 is fixed at the left end of the guide wire wheel 5, a rubber plate 8 is arranged between the right position of the lower end of the rotating plate 5 and the left end of the vertical plate 6, the rubber plate 8 is installed at the upper side of the guide wire wheel 2, the guide wire wheel 2 is rotatably supported through the central shaft 21, the spinning is wound around the upper end of the guide wire wheel 2, the spinning is guided, the rotating plate 5 is rotatably installed at the left end of the vertical plate 6, the rotating plate 5 is attached to the upper end of the guide wire wheel 2, avoid the spinning to move the in-process and jump the wire from wire wheel 2, rubber slab 8 can be established in the spinning upper end in addition, the scope of jumping from top to bottom of spinning can be restricted on one hand, the spinning that jumps from top to bottom can be cushioned on the other hand, make the spinning stably transmit, in addition, to the wire wheel 2 of different width, as shown in fig. 3 and fig. 4, only need the angle of adjustment rotor plate 5 and vertical board 6 to realize the universalization and use, the application range has been enlarged, excellent in use effect.

First recess and first recess run through vertical 6 front and back ends of board are seted up to vertical 6 lower extremes of board, the inside gyro wheel 60 that is equipped with of first recess, gyro wheel 60 is established in wire wheel 2 upper right portions upper end, the inside first pivot that is equipped with of gyro wheel 60, first pivot is rotated with vertical board 6 and is connected, make gyro wheel 60 rotate with vertical board 6 through first pivot and be connected, wire wheel 2 takes place to rotate under the effect of spinning line when, gyro wheel 60 and 2 roll connection of wire wheel, frictional force is less, the wearing and tearing of wire wheel 2 and gyro wheel 60 have been reduced, the two life has been prolonged.

The axostylus axostyle 41 is fixed to 5 left ends of rotor plate, 41 annular outer ends of axostylus axostyle pass through bearing installation cylinder section of thick bamboo 4, cylinder section of thick bamboo 4 is established at 5 left ends of rotor plate, 4 laminating of cylinder section of thick bamboo are put at 2 upper ends left parts of wire wheel, 41 left ends of axostylus axostyle are through linking rope and 3 fixed connection of balancing weight, cylinder section of thick bamboo 4 is established at 8 downside of rubber slab, support cylinder section of thick bamboo 4 through axostylus axostyle 41, cylinder section of thick bamboo 4 can rotate 41 and rotor plate 5 relatively, when wire wheel 2 takes place to rotate under the effect of spinning, cylinder section of

thick bamboo

4 and 2 roll connection of wire wheel, frictional force is less, the.

The left end of the side plate 1 is fixedly connected with the connecting plate through a bolt, the left end of the connecting plate is fixedly provided with a transverse connecting plate 7, and the transverse connecting plate 7 is fixedly arranged at the right end of the vertical plate 6, so that the side plate 1 is fixedly connected with the vertical plate 6.

A second groove is formed in the upper end of the vertical plate 6 and penetrates through the left end and the right end of the vertical plate 6, a second rotating shaft arranged horizontally is arranged inside the rotating plate 5, the front end and the rear end of the second rotating shaft are respectively connected with the front wall and the rear wall inside the second groove in a rotating mode, the second groove is convenient for the connection of the rotating plate 5 and the vertical plate 6, and the rotating plate 5 is convenient to rotate.

8 left ends of rubber slab can be dismantled with rotor plate 5 and be connected, and 8 right-hand members of rubber slab can be dismantled with vertical board 6 and be connected, when 8 take place to damage as the rubber slab, can separate rubber slab 8 and rotor plate 5 and vertical board 6, realize removable function.

First draw-in groove is seted up to 5 lower extremes of rotor plate, 8 left ends of rubber slab extend to inside the first draw-in groove, the second draw-in groove is seted up to 5 upper ends of rotor plate, the second draw-in groove is established in first draw-in groove upper end, 8 left ends of rubber slab installation even post 81, even post 81 is established inside the second draw-in groove and is extended from second draw-in groove upper end, the fixed locking piece in 5 upper ends of rotor plate, and the retaining member is connected with even post 81 locking, the locking piece locks rubber slab 8, when needing to demolish rubber slab 8, remove the locking piece, then remove rubber slab 8 and even post 81 towards the direction of keeping away from rotor plate 5, make rubber slab 8 and even post 81 all shift out from rotor plate 5 is inside, realized

rotor plate

5 and 8 locking and unblock of rubber slab.

The locking piece comprises a fixing block 84 fixed at the upper end of the rotating plate 5, a first spring 83 is fixed at the left end of the fixing block 84, a hook 82 is fixed at the left end of the first spring 83, a hanging hole is formed in the upper portion of the connecting column 81, the hook 82 is hooked inside the hanging hole, the first spring 83 is in a pulling state, the pulling force of the first spring 83 acts on the hook 82, the hook 82 and the connecting column 81 are stably hooked together, when the rubber plate 8 needs to be removed, the hook 82 is held and the hook 82 is moved out of the hanging hole, and the locking of the connecting column 81 and the rubber plate 8 is released.

The left end of the vertical plate 6 is provided with a first connecting groove 61, a second connecting groove 62 and a third connecting groove 63, the first connecting groove 61 is arranged at the left end of the second connecting groove 62, the third connecting groove 63 is arranged at the upper ends of the first connecting groove 61 and the second connecting groove 62, the first connecting groove 61, the second connecting groove 62 and the third connecting groove 63 are communicated, the lower part of the right end of the rubber plate 8 is provided with an insertion block 85, the upper end of the rubber plate 8 is close to a right position fixing stop 86, the top end inside the third connecting groove 63 is provided with a second spring 88, the lower end of the second spring 88 is provided with a fixed pressing plate 87, the front end and the rear end of the pressing plate 87 are respectively attached to the front wall and the rear wall inside the third connecting groove 63, the left end of the pressing plate 87 is provided with a hand-push plate 89 and a hand-push plate 89 is arranged at the upper side of the rubber plate 8, the right end of the, the second spring 88 is in a compressed state, the elastic force of the second spring 88 acts on the pressing plate 87, the pressing plate 87 is used for extruding the rubber plate 8 and the hand pushing plate 89, the inserting block 85 is pressed into the second connecting groove 62, and the connection between the rubber plate 8 and the vertical plate 6 is realized.

The specific implementation mode is as follows: when the device is used, the rotating plate 5 is rotated along the rotating connection point of the rotating plate 5 and the vertical plate 6, so that the rotating plate 5 is separated from the wire guide wheel 2, then the spinning yarns pass through the gap between the rotating plate 5 and the wire guide wheel 2 and are placed on the wire guide wheel 2, the wire guide wheel 2 guides the spinning yarns, then the rotating plate 5 is loosened, the rotating plate 5 rotates downwards under the action of the gravity of the counterweight block 3 until the lower end of the rotating plate 5 is attached to the upper end of the wire guide wheel 2, the upper side and the left side and the right side of the guided spinning yarns are limited by the rotating plate 5 and the vertical plate 6, so that the spinning yarns are prevented from jumping over the wire guide wheel 2 in the moving process, in addition, the rubber plate 8 can be arranged at the upper end of the spinning yarns, so that the vertical jumping range of the spinning yarns can be limited, and the vertical jumping spinning yarns can be buffered, so that the spinning yarns can be stably transmitted, and in addition, for the wire guide wheels 2 with, the universal use can be realized only by adjusting the angles of the rotating plate 5 and the vertical plate 6, the use range is enlarged, and the use effect is good.

Make gyro wheel 60 and vertical board 6 rotate through first pivot and be connected, when wire wheel 2 takes place to rotate under the effect of spinning, gyro wheel 60 and wire wheel 2 roll connection, frictional force is less, the wearing and tearing of wire wheel 2 and gyro wheel 60 have been reduced, the life of the two has been prolonged, support cylinder section of thick bamboo 4 through axostylus axostyle 41, cylinder section of thick bamboo 4 can be axostylus axostyle 41 and rotor plate 5 rotation relatively, when wire wheel 2 takes place to rotate under the effect of spinning, cylinder section of thick bamboo 4 and wire wheel 2 roll connection, frictional force is less, the wearing and tearing of wire wheel 2 and cylinder section of thick bamboo 4 have been reduced, the life of the two has been prolonged.

Wherein the rubber plate 8 is detachably connected with the rotating plate 5 and the vertical plate 6, the first spring 83 is in a pulling state, the pulling force of the first spring 83 acts on the hook 82 to enable the hook 82 to be stably hooked with the connecting column 81, when the rubber plate 8 needs to be removed, the hook 82 is held and moved out of a hanging hole to realize the unlocking of the connecting column 81 and the rubber plate 8, in addition, the second spring 88 is in a compression state, the elastic force of the second spring 88 acts on the pressing plate 87, the pressing plate 87 is utilized to extrude the rubber plate 8 and the hand pushing plate 89, the inserting block 85 is pressed and installed in the second connecting groove 62 to realize the connection of the rubber plate 8 and the vertical plate 6, the vertical plate 6 and the rubber plate 8 need to be separated, the pressing plate 87 can be driven to move upwards only by moving the hand pushing plate 89 upwards to drive the pressing plate 87 to move upwards, the pressing on the rubber plate 8 is released, the rubber plate 8 is moved upwards until the inserting block 85 is moved out of the second connecting groove 62, the rubber sheet 8 is then separated from the vertical plate 6 by moving the rubber sheet 8 horizontally to the left.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a wire falling mechanism is prevented to leading wheel for weaving wire winding, includes curb plate (1), curb plate (1) left end is passed through center pin (21) and is rotated installation wire guide wheel (2), its characterized in that: curb plate (1) left end fixed vertical board (6), vertical board (6) slidable mounting is in wire wheel (2) upper end, vertical board (6) left end is rotated and is connected rotor plate (5), rotor plate (5) lower extreme and wire wheel (2) upper end left side position laminating, fixed balancing weight (3) of rotor plate (5) left side lower extreme, establish in wire wheel (2) left side balancing weight (3), be equipped with rubber slab (8) between rotor plate (5) lower extreme right part position and vertical board (6) left end, install at wire wheel (2) upside rubber slab (8).

2. A guide wheel thread-drop prevention mechanism for textile winding according to claim 1, characterized in that: the wire guide wheel is characterized in that a first groove is formed in the lower end of the vertical plate (6) and penetrates through the front end and the rear end of the vertical plate (6), a roller (60) is arranged in the first groove, the roller (60) is arranged at the upper right end of the wire guide wheel (2), a first rotating shaft is arranged in the roller (60), and the first rotating shaft is rotatably connected with the vertical plate (6).

3. A guide wheel thread-drop prevention mechanism for textile winding according to claim 1, characterized in that: the left end of the rotating plate (5) is fixedly provided with a shaft lever (41), the annular outer end of the shaft lever (41) is provided with a cylindrical barrel (4) through a bearing, the cylindrical barrel (4) is arranged at the left end of the rotating plate (5), the cylindrical barrel (4) is attached to the left end of the upper end of the wire guide wheel (2), the left lower end of the shaft lever (41) is fixedly connected with the balancing weight (3) through a connecting rope, and the cylindrical barrel (4) is arranged at the lower side of the rubber plate (8).

4. A guide wheel thread-drop prevention mechanism for textile winding according to claim 1, characterized in that: the left end of the side plate (1) is fixedly connected with a connecting plate through a bolt, the left end of the connecting plate is fixedly provided with a transverse connecting plate (7), and the transverse connecting plate (7) is fixedly arranged at the right end of the vertical plate (6).

5. A guide wheel thread-drop prevention mechanism for textile winding according to claim 1, characterized in that: the upper end of the vertical plate (6) is provided with a second groove, the second groove penetrates through the left end and the right end of the vertical plate (6), a second rotating shaft horizontally arranged is arranged inside the rotating plate (5), and the front end and the rear end of the second rotating shaft are respectively connected with the front wall and the rear wall inside the second groove in a rotating mode.

6. A guide wheel thread-drop prevention mechanism for textile winding according to claim 1, characterized in that: the left end of the rubber plate (8) is detachably connected with the rotating plate (5), and the right end of the rubber plate (8) is detachably connected with the vertical plate (6).

7. A guide wheel thread-drop prevention mechanism for textile winding according to claim 6, characterized in that: first draw-in groove is seted up to rotor plate (5) lower extreme, inside rubber slab (8) left end extended to first draw-in groove, the second draw-in groove was seted up to rotor plate (5) upper end, the second draw-in groove was established in first draw-in groove upper end, even post (81) of rubber slab (8) left end installation, even post (81) establish in second draw-in groove inside and extend from second draw-in groove upper end, fixed locking piece in rotor plate (5) upper end, and retaining member and even post (81) locking connection.

8. A guide wheel thread-drop prevention mechanism for textile winding according to claim 7, characterized in that: the locking piece is including fixing fixed block (84) in rotor plate (5) upper end, fixed first spring (83) are fixed to fixed block (84) left end, couple (82) are fixed to first spring (83) left end, the hanging hole is seted up to upper portion position in even post (81), couple (82) hook is inside to the hanging hole.

9. A guide wheel thread-drop prevention mechanism for textile winding according to claim 6, characterized in that: a first connecting groove (61), a second connecting groove (62) and a third connecting groove (63) are formed in the left end of the vertical plate (6), the first connecting groove (61) is formed in the left end of the second connecting groove (62), the third connecting groove (63) is formed in the upper ends of the first connecting groove (61) and the second connecting groove (62), the first connecting groove (61), the second connecting groove (62) and the third connecting groove (63) are communicated, an insertion block (85) is arranged at the lower portion of the right end of the rubber plate (8), a fixed stop block (86) is arranged at the upper end of the rubber plate (8) close to the right side, a second spring (88) is fixed at the top end inside the third connecting groove (63), a pressing plate (87) is fixed at the lower end of the second spring (88), the front end and the rear end of the pressing plate (87) are attached to the front wall and the rear wall inside the third connecting groove (63), a hand pushing plate (89) and a hand pushing plate (89) are fixed at the left end of the, the right end of the rubber plate (8) extends into the first connecting groove (61), the pressing plate (87) is clamped at the upper ends of the rubber plate (8) and the stop block (86), and the inserting block (85) extends into the second connecting groove (62).