CN110367696B

CN110367696B - Curtain drying device

Info

Publication number: CN110367696B
Application number: CN201910661611.3A
Authority: CN
Inventors: 李晓红; 于海涛
Original assignee: Jiaxing Li'an Intelligent Technology Co ltd
Current assignee: Tongxiang Zhimeng Intellectual Property Operation Co ltd
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2021-10-01
Anticipated expiration: 2039-07-22
Also published as: CN110367696A

Abstract

The invention discloses a curtain drying device, which comprises a machine body, wherein a telescopic cavity with an opening facing right and communicated with an external space is arranged in the machine body, a movable drying main body is arranged in the telescopic cavity in a sliding manner, the drying main body is connected with the machine body through a moving device in a power manner so that the drying main body can move in the telescopic cavity, the curtain drying device has the advantages of simple structure and convenience in operation, the drying main body and the machine body are locked through a locking device, a curtain to be dried rotates in the drying cavity through a rotating device, the heat in the drying cavity can be uniformly distributed, the curtain can be dried uniformly in the rotating process, the drying area is large, the drying time is shortened, the drying main body is driven to move left and right by the moving device, the telescopic structure ensures that the utilization rate is high under the floor area of the device, the arranged cavity can be used as a wardrobe for placing the curtain, the device has ingenious structure and high automation degree, the drying device is convenient to install and use, high in drying efficiency and time-saving and cost-effective.

Description

Curtain drying device

Technical Field

The invention relates to the technical field of furniture, in particular to a curtain drying device.

Background

Present domestic (window) curtain all adopts intelligent control, however these (window) curtains will carry out the fast drying operation after clean, drying equipment that adopts at present mainly is square structure and circular structure, mainly use the design to thermal maximize in its structure, do not place the structure to it and improve, it treats that the fixed string of stoving (window) curtain is to drying equipment in, when making the stoving, the outside of (window) curtain contacts the heat at first with the stoving, but the inside of (window) curtain is not dried, then need increase the time of drying and just can make the (window) curtain by the complete drying, and simultaneously, the hanging of (window) curtain is inconvenient, take out need take out the (window) curtain in the middle earlier to the (window) curtain of (window) curtain corner or both sides and can take out inside (window) curtain.

Disclosure of Invention

The invention aims to provide a curtain drying device which is used for overcoming the defects in the prior art.

The invention relates to a curtain drying device, which comprises a machine body, wherein a telescopic cavity with an opening facing the right and communicated with an external space is arranged in the machine body, a movable drying main body is arranged in the telescopic cavity in a sliding manner, the drying main body is connected with the machine body through a moving device in a power manner so that the drying main body can move in the telescopic cavity, a locking device is arranged at the lower side of the telescopic cavity and used for stabilizing the moved drying main body, an annular drying cavity with the rear side communicated with the external space through an openable and closable sealing door is arranged in the drying main body, vent grooves which are symmetrical up and down are communicated with the external space at the right side of the drying cavity are arranged in the drying main body, an electromagnetic valve is fixedly arranged in each vent groove, a rotating device is arranged at the upper side of the drying cavity and can drive a curtain to rotate in the drying cavity, heating plates are fixedly arranged on the inner wall of the drying cavity, and a power supply device connected with an external power supply through a conducting wire is electrically connected between the heating plates, the power supply device enables the heating plate to work to generate heat through the conducting wire, so that the temperature in the drying cavity is increased to be used for drying the curtain, the power supply device is provided with cavities in an up-and-down symmetrical mode, and the cavities are used for placing the curtain under the effect of a wardrobe.

In a further technical scheme, the moving device comprises moving grooves which are symmetrical front and back and are communicated with the telescopic cavity with downward openings, a movable screw rod with the left end rotationally connected with the left end wall of the movable groove is rotationally arranged in the movable groove, the upper end of the movable screw rod is connected with a movable block with a lower end fixedly connected with the drying main body in a threaded manner, the right side of the movable groove is communicated with a belt groove, the right end of the movable screw rod is rotationally connected with the right end wall of the belt groove and is fixedly provided with a rotating belt wheel, a rotating groove with a downward opening communicated with the telescopic cavity is arranged between the moving grooves, a rotating gear is rotatably arranged in the rotating groove through a rotating shaft, the lower end face of the rotating gear is meshed with a driving device in the drying main body, the right end of the rotating shaft is rotatably connected with the right end wall of the belt groove, a connecting belt wheel is fixedly arranged on the right end of the rotating shaft, and the connecting belt wheel is in power connection with the rotating belt wheel through a transmission belt.

According to the technical scheme, a plurality of fixed locking teeth are fixedly arranged on the lower end face of the drying main body, the locking device comprises a lifting groove with an upward opening communicated with the telescopic cavity, a hydraulic cylinder is fixedly arranged on the lower end wall of the lifting groove, a push rod is dynamically connected to the upper end of the hydraulic cylinder, a locking rod which is connected with the fixed locking teeth in a locking mode is fixedly arranged at the upper end face of the push rod, and balance springs which are bilaterally symmetrical and are fixedly connected with the lower end wall of the lifting groove are fixedly arranged on the lower end face of the locking rod.

A further technical scheme, rotating device is including rotating the chamber, it just rotates the drive gear of connecting through first pivot to rotate the intracavity to be equipped with bilateral symmetry, and is left first pivot upper end with drive arrangement power is connected, drive gear front and back symmetry is equipped with and rotates the tensioning gear of connecting through the second pivot, the second pivot with connect through connecting belt power between the first pivot, tensioning gear periphery with drive gear periphery meshing is connected with the toothed belt, it is equipped with the downside through the spread groove intercommunication with the communicating ring channel in stoving chamber to rotate the chamber periphery, the end wall has set firmly the ring rail in the ring rail, the last slip of ring rail is equipped with a plurality of lower extremes and stretches into the sliding block in the stoving chamber, with the connecting rod of sliding block up end rotation symmetry around being equipped with, the connecting rod is close to the one end of rotating the chamber is run through the spread groove stretches into rotate the intracavity and with toothed belt upper end The surface is rotationally connected, and a through hole which penetrates through the sliding block from front to back and is used for hanging a clothes rack is arranged in the sliding block.

The driving device comprises a driving cavity, a driving block is arranged in the driving cavity in a sliding manner, a telescopic spring which is vertically symmetrical and has the right end fixedly connected with the right end wall of the driving cavity is fixedly arranged on the right end surface of the driving block, a first slide bar groove with a right opening is communicated with the left side of the driving cavity, a first slide bar with the right end extending into the driving cavity and abutted against the driving block is arranged in the first slide bar groove in a sliding manner, a first reset component is fixedly arranged on the upper end surface of the first slide bar, a second slide bar groove is communicated between the lower side of the first slide bar groove and the telescopic cavity, a second slide bar with the upper end abutted against the first slide bar is arranged in the second slide bar groove in a sliding manner, a second reset component is fixedly arranged on the left end surface of the second slide bar, a driving motor is fixedly arranged in the driving block, the right end of the driving motor is dynamically connected with a driving shaft, a meshing cavity with the lower side of which is communicated with the rotating cavity is arranged on the right side of the driving cavity, the upper end of the first rotating shaft on the left side extends into the meshing cavity and is fixedly provided with a first bevel gear, the right side of the meshing cavity is communicated with a transmission cavity with an upward opening and communicated with the telescopic cavity through a sliding cavity, the right end of the driving shaft penetrates through the meshing cavity and the sliding cavity in sequence and extends into the transmission cavity, and a spline block is fixedly arranged on the right end of the driving shaft, a second bevel gear with the lower end surface in meshed connection with the first bevel gear is fixedly arranged on the driving shaft in the meshing cavity, a stabilizing block which is connected with the sliding cavity in a sliding way is rotationally arranged on the driving shaft in the sliding cavity, the right end face of the stabilizing block is fixedly provided with top pressure springs which are symmetrical up and down and the right end of each top pressure spring is fixedly connected with the right end wall of the sliding cavity, a spline sleeve with an inner wall in spline connection with the spline block is rotationally arranged in the transmission cavity through an annular rotating shaft, and a transmission gear with the upper end surface meshed with the rotating gear is fixedly arranged on the periphery of the spline sleeve.

The invention has the beneficial effects that: the curtain drying device is simple in structure and convenient to operate, the drying main body and the machine body are locked through the locking device, the rotating device enables a curtain to be dried to rotate in the drying cavity, heat in the drying cavity can be uniformly distributed, the curtain can be dried uniformly in the rotating process, the drying area is large, the drying time is shortened, the drying main body is driven to move left and right through the moving device, the requirement of a user for naturally drying and radiating after the curtain is dried is met, the curtain is convenient to take and place, the telescopic structure enables the utilization rate of the occupied area of the device to be high, the arranged cavity can be used as a wardrobe to place the curtain, and the curtain drying device is ingenious in structure, high in automation degree, convenient to install and use, high in drying efficiency and capable of saving time cost.

Drawings

FIG. 1 is a schematic view of the internal structure of a curtain drying device according to the present invention;

FIG. 2 is a schematic view of the structure in the direction "A-A" of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure in the direction "B-B" of FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of "C" in FIG. 1 according to the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1-4, a curtain drying device according to an embodiment of the present invention includes a machine body 10, a telescopic cavity 11 having an opening facing right and communicating with an external space is disposed in the machine body 10, a movable drying main body 17 is slidably disposed in the telescopic cavity 11, the drying main body 17 and the machine body 10 are connected by a moving device, so that the drying main body 17 can move in the telescopic cavity 11, a locking device is disposed at a lower side of the telescopic cavity 11, the locking device is configured to stabilize the moved drying main body 17, a drying cavity 12 having an annular shape and a rear side communicating with the external space through an openable and closable door is disposed in the drying main body 17, a vent slot 73 having a vertical symmetry is disposed at a right side of the drying cavity 12 and communicating with the external space, an electromagnetic valve 74 is fixedly disposed in the vent slot 73, a rotating device is disposed at an upper side of the drying cavity 12, and the rotating device can drive a curtain to rotate in the drying cavity 12, the inner wall of the drying cavity 12 is fixedly provided with heating plates 13, a power supply device 15 connected with an external power supply is electrically connected between the heating plates 13 through a conducting wire 14, the power supply device 15 enables the heating plates 13 to work to generate heat through the conducting wire 14, so that the temperature in the drying cavity 12 is increased to be used for drying curtains, cavities 16 are symmetrically arranged on the power supply device 15 from top to bottom, and the curtains are placed in the cavities 16 under the action of a wardrobe.

Beneficially or exemplarily, the moving device includes moving grooves 18 which are symmetrical front and back and have downward openings and are communicated with the telescopic cavity 11, a moving screw 20 with a left end rotatably connected with a left end wall of the moving groove 18 is rotatably disposed in the moving groove 18, a moving block 19 with a lower end fixedly connected with the drying body 17 is connected to the moving screw 20 through a screw thread, a belt groove 21 is disposed in the right side of the moving groove 18, a right end of the moving screw 20 is rotatably connected with a right end wall of the belt groove 21 and is fixedly provided with a rotating pulley 22, a rotating groove 27 with a downward opening and is communicated with the telescopic cavity 11 is disposed between the moving grooves 18, a rotating gear 24 is rotatably disposed in the rotating groove 27 through a rotating shaft 26, a lower end face of the rotating gear 24 is engaged with the driving device in the drying body 17, a right end of the rotating shaft 26 is rotatably connected with a right end wall of the belt groove 21 and is fixedly provided with a connecting pulley 25, the connecting belt wheel 25 is in power connection with the rotating belt wheel 22 through a transmission belt 23.

Beneficially or exemplarily, a plurality of fixed locking teeth 71 are fixedly arranged on the lower end surface of the drying main body 17, the locking device includes a lifting groove 28 with an upward opening communicated with the telescopic cavity 11, a hydraulic cylinder 29 is fixedly arranged on the lower end wall of the lifting groove 28, a push rod 30 is dynamically connected to the upper end of the hydraulic cylinder 29, a locking rod 31 which is fixedly connected with the fixed locking teeth 71 is fixedly arranged on the upper end surface of the push rod 30, and balancing springs 32 which are bilaterally symmetrical and fixedly connected with the lower end wall of the lifting groove 28 are fixedly arranged on the lower end surface of the locking rod 31.

Beneficially or exemplarily, the rotating device includes a rotating chamber 33, a driving gear 34 which is bilaterally symmetrical and is rotatably connected through a first rotating shaft 35 is arranged in the rotating chamber 33, the upper end of the first rotating shaft 35 on the left side is in power connection with the driving device, tensioning gears 37 which are rotatably connected through a second rotating shaft 36 are symmetrically arranged in front and back of the driving gear 34, the second rotating shaft 36 is in power connection with the first rotating shaft 35 through a connecting belt, a toothed belt 38 is engaged and connected to the periphery of the tensioning gear 37 and the periphery of the driving gear 34, an annular groove 42 with the lower side communicated with the drying chamber 12 is arranged on the periphery of the rotating chamber 33 through a connecting groove 39, an annular rail 43 is fixedly arranged on the inner end wall of the annular groove 42, a plurality of sliding blocks 41 with the lower ends extending into the drying chamber 12 are slidably arranged on the annular rail 43, and a connecting rod 40 which is rotationally symmetrical in front and back is arranged on the upper end face of the sliding blocks 41, one end of the connecting rod 40 close to the rotating cavity 33 penetrates through the connecting groove 39 and extends into the rotating cavity 33 and is rotatably connected with the upper end face of the toothed belt 38, and a through hole 45 which penetrates through the sliding block 41 in the front-back direction and is used for hanging a clothes hanger is arranged in the sliding block.

Beneficially or exemplarily, the driving device includes a driving cavity 49, a driving block 50 is slidably disposed in the driving cavity 49, a vertically symmetrical expansion spring 58 whose right end is fixedly connected to a right end wall of the driving cavity 49 is fixedly disposed on a right end face of the driving block 50, a first slide bar slot 51 whose opening faces right is disposed in the left side of the driving cavity 49 in a communicating manner, a first slide bar 52 whose right end extends into the driving cavity 49 and abuts against the driving block 50 is slidably disposed in the first slide bar slot 51, a first reset component 53 is fixedly disposed on an upper end face of the first slide bar 52, a second slide bar slot 55 is disposed between a lower side of the first slide bar slot 51 and the expansion cavity 11 in a communicating manner, a second slide bar 56 whose upper end abuts against the first slide bar 52 is slidably disposed in the second slide bar slot 55, a second reset component 54 is fixedly disposed on a left end face of the second slide bar 56, a driving motor 57 is fixedly disposed in the driving block 50, the right end of the driving motor 57 is in power connection with a driving shaft 59, the right side of the driving cavity 49 is communicated with a meshing cavity 60, the lower side of the driving cavity is communicated with the rotating cavity 33, the upper end of the first rotating shaft 35 at the left side of the driving cavity extends into the meshing cavity 60 and is fixedly provided with a first bevel gear 62, the right side of the meshing cavity 60 is communicated with a transmission cavity 66, the opening of which is upward and is communicated with the telescopic cavity 11, through a sliding cavity 63, the right end of the driving shaft 59 sequentially penetrates through the meshing cavity 60 and the sliding cavity 63 to extend into the transmission cavity 66 and is fixedly provided with a spline block 69, the driving shaft 59 in the meshing cavity 60 is fixedly provided with a second bevel gear 61, the lower end face of which is in meshing connection with the first bevel gear 62, the driving shaft 59 in the sliding cavity 63 is rotatably provided with a stabilizing block 64 in sliding connection with the sliding cavity 63, the right end face of the stabilizing block 64 is fixedly provided with a jacking spring 65, the jacking spring is vertically symmetrical, and the right end of which is fixedly connected with the right end wall of the sliding cavity 63, a spline sleeve 68 with an inner wall in spline connection with the spline block 69 is rotatably arranged in the transmission cavity 66 through an annular rotating shaft 70, and a transmission gear 67 with an upper end surface in meshed connection with the rotating gear 24 is fixedly arranged on the periphery of the spline sleeve 68.

In the initial state, the drying main body 17 is located in the telescopic cavity 11, the second bevel gear 61 is meshed with the first bevel gear 62, the spline block 69 is not splined with the spline sleeve 68, and the heating plate 13 is not heated.

When the device is required to work, the openable closing door is opened, the clothes hanger of the curtain to be dried is hung on the sliding block 41 through the through hole 45 to be placed in the drying cavity 12, the closing door is closed to seal the drying cavity 12, the power supply 15 enables the heating plate 13 to work through the conducting wire 14 to generate heat, the temperature in the drying cavity 12 is raised to dry the curtain, then the driving motor 57 works, the driving shaft 59 rotates, the second bevel gear 61 drives the first bevel gear 62 to rotate to drive the first rotating shaft 35 to rotate, the driving gear 34 rotates to enable the toothed belt 38 to rotate, the sliding block 41 is driven by the connecting rod 40 to slide along the annular track 43, the curtain on the sliding block 41 is driven to rotate and dry in the drying cavity 12, meanwhile, the heat in the drying cavity 12 is uniform to dry the curtain uniformly and efficiently, and then, when the dried taste needs to be removed by natural air drying and heat dissipation after drying is finished, the hydraulic cylinder 29 works, the push rod 30 pulls the locking rod 31 to descend to be separated from locking connection with the fixed locking tooth 71, the second sliding rod 56 descends under the action of the second reset component 54, the first sliding rod 52 moves leftwards under the action of the first reset component 53, when the driving block 50 moves leftwards to enable the spline block 69 to be in spline connection with the spline sleeve 68, the driving shaft 59 rotates to enable the second bevel gear 61 to be separated from meshing connection with the first bevel gear 62 and the spline block 69 to be in spline connection with the spline sleeve 68, the driving motor 57 works, the driving shaft 59 rotates to enable the spline sleeve 68 to drive the transmission gear 67 to rotate, the rotating gear 24 rotates to enable the connecting belt wheel 25 to rotate, the rotating belt wheel 22 drives the moving screw rod 20 to rotate through the transmission belt 23, the moving block 19 drives the drying main body 17 to move rightwards to the outside space, then the hydraulic cylinder 29 drives the push rod 30 to push the locking rod 31 to ascend to enable the locking connection with the fixed locking tooth 71 to lock the drying main body 17 When the second slide bar 56 is fixed and pushed to rise to the initial position, the first slide bar 52 moves rightwards to push the driving block 50 to move rightwards to the initial position, the driving motor 57 works, the driving shaft 59 rotates, the second bevel gear 61 drives the first bevel gear 62 to rotate so as to drive the first rotating shaft 35 to rotate, the driving gear 34 rotates, the toothed belt 38 rotates, the sliding block 41 is driven by the connecting rod 40 to slide along the annular track 43, the curtain on the sliding block 41 is driven to rotate and dry, and the curtain is convenient to take out.

It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.

Claims

1. A curtain drying device comprises a machine body, wherein a telescopic cavity with an opening facing the right and communicated with an external space is arranged in the machine body, a movable drying main body is arranged in the telescopic cavity in a sliding mode, the drying main body is connected with the machine body through a moving device in a power mode so that the drying main body can move in the telescopic cavity, a locking device is arranged on the lower side of the telescopic cavity and used for stabilizing the moved drying main body, an annular drying cavity with the rear side communicated with the external space through an openable and closable sealing door is arranged in the drying main body, vent grooves which are symmetrical up and down are communicated with the external space are formed in the right side of the drying cavity, an electromagnetic valve is fixedly arranged in each vent groove, a rotating device is arranged on the upper side of the drying cavity and can drive a curtain to rotate in the drying cavity, heating plates are fixedly arranged on the inner wall of the drying cavity, and a power supply device connected with an external power supply is electrically connected between the heating plates through a conducting wire, the power supply device enables the heating plate to work to generate heat through the conducting wire, so that the temperature in the drying cavity is increased to be used for drying the curtain, the power supply device is symmetrically provided with cavities up and down, and the cavities are used for placing the curtain under the action of a wardrobe;

the moving device comprises moving grooves which are symmetrical front and back and are communicated with the telescopic cavity with downward openings, a moving screw rod with the left end rotatably connected with the left end wall of the moving groove is rotatably arranged in the moving grooves, the upper end of the movable screw rod is connected with a movable block with a lower end fixedly connected with the drying main body in a threaded manner, the right side of the movable groove is communicated with a belt groove, the right end of the movable screw rod is rotationally connected with the right end wall of the belt groove and is fixedly provided with a rotating belt wheel, a rotating groove with a downward opening communicated with the telescopic cavity is arranged between the moving grooves, a rotating gear is rotatably arranged in the rotating groove through a rotating shaft, the lower end face of the rotating gear is meshed with a driving device in the drying main body, the right end of the rotating shaft is rotatably connected with the right end wall of the belt groove and is fixedly provided with a connecting belt wheel, and the connecting belt wheel is in power connection with the rotating belt wheel through a transmission belt;

the lower end face of the drying main body is fixedly provided with a plurality of fixed locking teeth, the locking device comprises a lifting groove with an upward opening communicated with the telescopic cavity, the lower end wall of the lifting groove is fixedly provided with a hydraulic cylinder, the upper end of the hydraulic cylinder is in power connection with a push rod, the upper end face of the push rod is fixedly provided with a locking rod, the upper end of the locking rod is fixedly provided with a locking rod, the locking rod is in locking connection with the fixed locking teeth, and the lower end face of the locking rod is fixedly provided with balance springs which are bilaterally symmetrical and the lower ends of the balance springs are fixedly connected with the lower end wall of the lifting groove;

the rotating device comprises a rotating cavity, a driving gear which is bilaterally symmetrical and is connected through rotation of a first rotating shaft is arranged in the rotating cavity, the upper end of the first rotating shaft at the left side is connected with the driving device through power, tensioning gears which are connected through rotation of a second rotating shaft are symmetrically arranged in the front and back of the driving gear, the second rotating shaft is connected with the first rotating shaft through power of a connecting belt, the periphery of the tensioning gear is meshed with the periphery of the driving gear and is connected with a toothed belt, the periphery of the rotating cavity is provided with a ring groove communicated with the drying cavity through a connecting groove, the inner end wall of the ring groove is fixedly provided with a ring rail, the ring rail is provided with a plurality of sliding blocks with lower ends extending into the drying cavity in a sliding mode, a connecting rod which is symmetrical in the front and back mode is arranged on the upper end face of the sliding block in a rotating mode, one end, close to the rotating cavity, of the connecting rod penetrates through the connecting groove extending into the rotating cavity and is connected with the upper end face of the toothed belt in a rotating mode, a through hole which penetrates through the sliding block from front to back and is used for hanging a clothes rack is formed in the sliding block;

the driving device comprises a driving cavity, a driving block is arranged in the driving cavity in a sliding manner, a telescopic spring which is vertically symmetrical and has the right end fixedly connected with the right end wall of the driving cavity is fixedly arranged on the right end face of the driving block, a first slide bar groove with a right opening is communicated with the left side of the driving cavity, a first slide bar with the right end extending into the driving cavity and abutted against the driving block is arranged in the first slide bar groove in a sliding manner, a first reset component is fixedly arranged on the upper end face of the first slide bar, a second slide bar groove is communicated between the lower side of the first slide bar groove and the telescopic cavity, a second slide bar with the upper end abutted against the first slide bar is arranged in the second slide bar groove in a sliding manner, a second reset component is fixedly arranged on the left end face of the second slide bar, a driving motor is fixedly arranged in the driving block, the right end of the driving motor is connected with a driving shaft in a power manner, and a meshing cavity with the lower side of the driving cavity is communicated with the rotating cavity, the upper end of the first rotating shaft on the left side extends into the meshing cavity and is fixedly provided with a first bevel gear, the right side of the meshing cavity is communicated with a transmission cavity with an upward opening and communicated with the telescopic cavity through a sliding cavity, the right end of the driving shaft penetrates through the meshing cavity and the sliding cavity in sequence and extends into the transmission cavity, and a spline block is fixedly arranged on the right end of the driving shaft, a second bevel gear with the lower end surface in meshed connection with the first bevel gear is fixedly arranged on the driving shaft in the meshing cavity, a stabilizing block which is connected with the sliding cavity in a sliding way is rotationally arranged on the driving shaft in the sliding cavity, the right end face of the stabilizing block is fixedly provided with top pressure springs which are symmetrical up and down and the right end of each top pressure spring is fixedly connected with the right end wall of the sliding cavity, a spline sleeve with an inner wall in spline connection with the spline block is rotationally arranged in the transmission cavity through an annular rotating shaft, and a transmission gear with the upper end surface meshed with the rotating gear is fixedly arranged on the periphery of the spline sleeve.