阅读说明：本技术 一种保压设备及按键保压方法 (Pressure maintaining equipment and key pressure maintaining method ) 是由 袁帅 何华杰 何明峰 刘青云 于 2020-12-28 设计创作，主要内容包括：本申请涉及一种保压设备及按键保压方法。保压设备包括工作台和安装于工作台的按压机构、控制机构与定位机构。采用包括上压块与下压块的按压机构对刷柄设置的按键进行按压及保压,有效提高按键受力均匀,可改善按键翘起出现使用时脱离刷柄的问题；上压块与下压块相向或相背移动由移动组件控制,减少人工操控,可使得保压压力统一,提高保压效率。按键保压方法包括预设保压时间、保压作业和取卸刷柄等步骤,采用预设保压时间,使用保压设备对刷柄的按键进行保压,可使刷柄的按键统一且均匀安装于刷柄,有效改善按键翘起等问题。(The application relates to pressure maintaining equipment and a key pressure maintaining method. The pressure maintaining equipment comprises a workbench, and a pressing mechanism, a control mechanism and a positioning mechanism which are arranged on the workbench. The press mechanism comprising the upper press block and the lower press block is adopted to press and maintain the pressure of the keys arranged on the brush handle, so that the uniform stress of the keys is effectively improved, and the problem that the keys are separated from the brush handle when the keys are tilted to be used can be solved; go up the briquetting and move by removing the subassembly control with lower briquetting in opposite directions or back of the body mutually, reduce the manual control, can make the pressurize pressure unified, improve pressurize efficiency. The key pressure maintaining method comprises the steps of presetting pressure maintaining time, pressure maintaining operation, taking off and unloading the brush handle and the like, the preset pressure maintaining time is adopted, pressure maintaining equipment is used for maintaining the pressure of keys of the brush handle, the keys of the brush handle can be uniformly and evenly arranged on the brush handle, and the problems of key tilting and the like are effectively solved.)

1. A pressurize equipment which characterized in that: comprises a workbench (2), a pressing mechanism (3) and a control mechanism (4) which are arranged on the workbench (2); a control front plate (22) is arranged on the workbench (2); the pressing mechanism (3) comprises a lower pressing block (31), an upper pressing block (32) and a moving assembly (33); the lower pressing block (31) is arranged on the workbench (2); the upper pressing block (32) is arranged on the control front plate (22) and is positioned above the lower pressing block (31); an upper concave through groove (321) is formed in the lower surface of the upper pressing block (32), a lower concave through groove (311) located right below the upper concave through groove (321) is formed in the upper surface of the lower pressing block (31), the upper concave through groove (321) and the lower concave through groove (311) are pressed to form a pressing ring groove (34), and the pressing ring groove (34) is matched with a position, where the button (11) is installed, of the brush handle (1); the moving assembly (33) is arranged on the workbench (2) or on the control front plate (22) and is used for driving the upper pressing block (32) and the lower pressing block (31) to move in opposite directions or move back to back; the control mechanism (4) is connected with the moving assembly (33) and is used for driving and controlling the moving assembly (33).

2. The dwelling apparatus of claim 1, wherein: the workbench (2) is also provided with a positioning mechanism (5) which is used for limiting the brush handle (1) by matching with the pressing ring groove (34); the positioning mechanism (5) is positioned on one side of the lower pressing block (31).

3. The dwelling apparatus of claim 2, characterized by: the positioning mechanism (5) comprises a positioning block (52) matched with the end part of the brush handle (1); when the brush handle (1) is pressed on the pressing ring groove (34), the positioning block (52) and the pressing ring groove (34) are coaxially arranged.

4. The dwelling apparatus of claim 3, wherein: the positioning mechanism (5) further comprises a positioning seat (51), a movable plate (53) and a positioning driving assembly (54); the movable plate (53) is hinged to one side, close to the lower pressing block (31), of the positioning seat (51); the positioning block (52) is arranged on one side of the movable plate (53) close to the lower pressing block (31); the positioning driving assembly (54) is mounted on the positioning seat (51), and is abutted against one side of the movable plate (53) far away from the positioning block (52), so as to drive the movable plate (53) and the positioning block (52) to rotate along a hinge shaft of the movable plate (53) and the positioning seat (51).

5. The dwelling apparatus of claim 4, wherein: the positioning seat (51) is provided with a through hole (512); the positioning drive assembly (54) comprises a drive cylinder (541) and a drive rod (542); the middle of the driving rod (542) is hinged in the through hole (512), the front end of the driving rod (542) penetrates through the through hole (512) to abut against one side, away from the positioning seat (51), of the movable plate (53), and the rear end of the driving rod (542) is hinged to an output shaft of the driving cylinder (541).

6. The dwelling apparatus of claim 5, wherein: one side of the movable plate (53) close to the through opening (512) is provided with a sliding groove (531) matched with the front end of the driving rod (542).

7. The dwelling apparatus of claim 1, wherein: an extension elastic sheet (55) is arranged at the edge of one side of the positioning mechanism (5) close to the lower pressing block (31); when the brush handle (1) contacts with the positioning mechanism (5), the extending elastic sheet (55) is pressed against the inner wall of the brush handle (1).

8. The dwelling apparatus of claim 1, wherein: the inner diameter of the pressing ring groove (34) is gradually reduced from one end close to the positioning mechanism (5) to the other end.

9. The dwelling apparatus of claim 1, wherein: and protective cushion layers (37) are arranged on the surfaces of the upper concave through groove (321) and the lower concave through groove (311).

10. A method of pressure holding a key (11) of a pressure holding device according to any one of claims 1 to 9, comprising the steps of:

presetting pressure maintaining time;

a brush handle (1) pre-attached with a key (11) is arranged in the concave through groove (311), and the moving component (33) is controlled to move the upper pressing block (32) and the lower pressing block (31) relatively to compress the brush handle (1);

the moving component (33) is controlled to make the upper pressing block (32) and the lower pressing block (31) move away from each other, and the brush handle (1) is taken out.

Technical Field

The application relates to pressure maintaining equipment and a key pressure maintaining method.

Background

The electric toothbrush is an oral cavity cleaning tool which can lead the brush head to generate high-frequency vibration through the quick rotation or vibration of the electric motor core, instantly decompose toothpaste into fine foam and deeply clean teeth gaps. Wherein the control key for controlling the electric toothbrush is generally arranged on the brush handle, and when in use, the control key is contacted and pressed to realize the control of the electric toothbrush.

Currently, electric toothbrushes are mostly assembled manually. When the keys of the brush handle are installed, firstly, the keys are coated with adhesive at the positions where the keys are installed on the brush handle, then the keys are installed on the brush handle in a pressing mode, and the keys are kept for a period of time (namely pressure maintaining) during pressing, so that the keys are stably installed on the brush handle.

In view of the above-mentioned related technologies, the inventor believes that when the key is installed, the force is applied to the key manually, which is likely to cause uneven force application, the key may be tilted, and the problem of being separated from the brush holder may occur during use.

Disclosure of Invention

In order to improve the problem that the button is uniformly stressed and arranged on the brush handle and is separated from the brush handle when the button is tilted in use, the application provides pressure maintaining equipment and a button pressure maintaining method.

In a first aspect, the application provides a pressure maintaining device, which adopts the following technical scheme:

pressure maintaining equipment comprises a workbench, a pressing mechanism and a control mechanism, wherein the pressing mechanism and the control mechanism are arranged on the workbench; a control front plate is arranged on the workbench; the pressing mechanism comprises a lower pressing block, an upper pressing block and a moving assembly; the lower pressing block is arranged on the workbench; the upper pressing block is arranged on the control front plate and is positioned above the lower pressing block; the lower surface of the upper pressing block is provided with an upper concave through groove, the upper surface of the lower pressing block is provided with a lower concave through groove positioned right below the upper concave through groove, the upper concave through groove and the lower concave through groove are pressed to form a pressing ring groove, and the pressing ring groove is matched with the position of the brush handle provided with the keys; the moving assembly is arranged on the workbench or the control front plate and is used for driving the upper pressing block and the lower pressing block to move towards or away from each other; the control mechanism is connected with the moving assembly and used for driving and controlling the moving assembly.

By adopting the technical scheme, the press mechanism comprising the upper press block and the lower press block is adopted to press and maintain the pressure of the keys arranged on the brush handle, so that the uniform stress of the keys is effectively improved, and the problem that the keys are separated from the brush handle when the keys are tilted to be used can be solved; go up the briquetting and move by removing the subassembly control with lower briquetting in opposite directions or back of the body mutually, reduce the manual control, can make the pressurize pressure unified, improve pressurize efficiency.

Optionally, the workbench is further provided with a positioning mechanism for limiting the brush handle by matching with the pressing ring groove; the positioning mechanism is positioned on one side of the lower pressing block.

Through adopting above-mentioned technical scheme, positioning mechanism can further strengthen the brush holder and install in pressing mechanism's stability, improves the pressurize effect.

Optionally, the positioning mechanism comprises a positioning block matched with the end part of the brush handle; when the brush handle is pressed on the pressing ring groove, the positioning block and the pressing ring groove are coaxially arranged.

Through adopting above-mentioned technical scheme, the locating piece can improve the accurate location of brush holder, improves the pressurize effect.

Optionally, the positioning mechanism further comprises a positioning seat, a movable plate and a positioning driving assembly; the movable plate is hinged to one side, close to the lower pressing block, of the positioning seat; the positioning block is arranged on one side of the movable plate close to the lower pressing block; the positioning driving assembly is mounted on the positioning seat and is abutted against one side of the movable plate away from the positioning block, and the positioning driving assembly is used for driving the movable plate and the positioning block to rotate along the hinged shaft of the movable plate and the positioning seat.

Through adopting above-mentioned technical scheme, the locating piece passes through fly leaf and location drive assembly, and the relative positioning seat rotates, and then makes locating piece self axial produce the change. When the brush handle needs to be installed, the positioning block is controlled to rotate by the positioning driving component along with the movable plate, so that the positioning block is obliquely arranged, the brush handle can conveniently penetrate through the upper concave through groove and the lower concave through groove which are in a separated state, and the brush handle is installed on the positioning block; then the positioning block and the brush handle are restored along with the movable plate and the positioning driving component until the positioning block is reset axially; thereby the brush handle is contacted with the upper concave through groove and the lower concave through groove, and the axial direction of the brush handle is in the same direction with the axial direction of the pressing ring groove.

Optionally, the positioning seat is provided with a through hole; the positioning driving assembly comprises a driving cylinder and a driving rod; the middle of the driving rod is hinged in the through hole, the front end of the driving rod penetrates through the through hole to abut against one side, far away from the positioning seat, of the movable plate, and the rear end of the driving rod is hinged to an output shaft of the driving cylinder.

Through adopting above-mentioned technical scheme, when the actuating cylinder drives the actuating lever and promotes the fly leaf and towards keeping away from the positioning seat and rotate, the axial of locating piece is towards between briquetting and the lower briquetting, can be convenient for install or dismantle the brush holder in positioning mechanism.

Optionally, a sliding groove matched with the front end of the driving rod is formed in one side, close to the through opening, of the movable plate.

Through adopting above-mentioned technical scheme, the contact is matchd with the spout to the actuating lever front end, can make the fly leaf promote along with the actuating lever and the rotation process is more steady, reduces and rocks.

Optionally, an extending elastic sheet is arranged on the side edge of the positioning mechanism close to one side of the lower pressing block; when the brush handle contacts with the positioning mechanism, the extending elastic sheet is pressed against the inner wall of the brush handle.

By adopting the technical scheme, the extension elastic sheet can prolong the axial length of the positioning block, thereby being convenient for improving the efficiency of mounting or dismounting the brush handle on the positioning mechanism, and the like.

Optionally, the inner diameter of the pressing ring groove is gradually reduced from one end close to the positioning mechanism to the other end.

Through adopting above-mentioned technical scheme, the inner wall of pressing the annular forms the inclined plane, and at the installation brush holder, the brush holder can more firmly be installed in recessed logical groove and positioning mechanism between.

Optionally, the surfaces of the upper concave through groove and the lower concave through groove are both provided with a protective cushion layer.

Through adopting above-mentioned technical scheme, the protection bed course can make brush holder and last concave through groove, recessed through groove in close contact with, improves the brush holder installation and stabilizes, reduces pressurize in-process brush holder and appears rotating, improves the pressurize effect.

In a second aspect, the application provides a key pressure maintaining method, which adopts the following technical scheme:

a key pressure maintaining method based on pressure maintaining equipment comprises the following steps:

presetting pressure maintaining time;

the brush handle with the pre-attached keys is arranged in the concave through groove, and the moving assembly is controlled to move the upper pressing block and the lower pressing block relatively to compress the brush handle;

the moving assembly is controlled to lead the upper pressing block and the lower pressing block to deviate and move, and the brush handle is taken out.

Through adopting above-mentioned technical scheme, adopt and predetermine the pressurize time, use the pressurize equipment to carry out the pressurize to the button of brush holder, can make the button of brush holder unified and evenly install in the brush holder, effectively improve button perk scheduling problem.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the press mechanism comprising the upper press block and the lower press block is adopted to press and maintain the pressure of the keys arranged on the brush handle, so that the uniform stress of the keys is effectively improved, and the problem that the keys are separated from the brush handle when the keys are tilted to be used can be solved;

2. when in use, manual operation can be reduced, the pressure maintaining pressure can be unified, and the pressure maintaining efficiency can be improved;

3. the pressure maintaining device is used for maintaining the pressure of the buttons of the brush holder by adopting the preset pressure maintaining time, so that the buttons of the brush holder can be uniformly and uniformly arranged on the brush holder, and the problems of button tilting and the like are effectively solved.

Drawings

FIG. 1 is a schematic structural diagram of a pressure maintaining device in embodiment 1 of the present application;

fig. 2 is a partial structural schematic diagram of a pressure maintaining device in embodiment 1 of the present application, which mainly embodies the structures of a positioning mechanism and a pressing mechanism;

FIG. 3 is a front view of the pressure maintaining apparatus of the present application;

FIG. 4 is a cross-sectional view of the upper and lower compacts of FIG. 3 taken along the direction A-A;

FIG. 5 is a block diagram of a process of a key pressure maintaining method in embodiment 1 of the present application;

FIG. 6 is a schematic structural view of a pressure maintaining apparatus in embodiment 2 of the present application;

fig. 7 is a partial structural schematic view of a pressure maintaining device in embodiment 2 of the present application, which mainly shows the structure of a positioning mechanism;

fig. 8 is a schematic structural view of a positioning mechanism and a pressing mechanism in embodiment 2 of the present application;

FIG. 9 is an enlarged view of portion B of FIG. 8; mainly embodies the structure of the positioning mechanism;

fig. 10 is a schematic structural view of a positioning drive assembly, a movable plate, and the like in embodiment 2 of the present application.

Description of reference numerals: 1. a brush handle; 11. pressing a key; 12. a tail port;

2. a work table; 21. a tailgate; 22. controlling the front plate; 23. a side plate; 24. a top plate; 25. a pressing block mounting groove; 26. positioning the mounting groove; 27. an operation port; 28. a fixed block; 29. a calibration rod;

3. a pressing mechanism; 31. pressing the block; 311. a concave through groove; 32. pressing the blocks; 321. an upper concave through groove; 33. a moving assembly; 331. a telescopic cylinder; 332. a controller; 333. a movable seat; 34. pressing the ring groove; 35. a guide plate; 36. a guide bar; 37. a protective cushion layer;

4. a control mechanism; 41. a start key; 42. a power switch;

5. a positioning mechanism; 51. positioning seats; 511. a bump; 512. a port; 52. positioning blocks; 53. a movable plate; 531. a chute; 532. iron sheets; 54. positioning the driving assembly; 541. a drive cylinder; 542. a drive rod; 543. a bar hole; 544. a magnetic block; 55. the elastic sheet is extended.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The electric toothbrush comprises a toothbrush handle 1, wherein a key 11 for operation control is arranged on the surface of the toothbrush handle 1, and the key 11 is generally arranged in the middle of the toothbrush handle 1. One end of the brush holder 1 close to the brush head is provided with a head port through which a telescopic rod of the motor passes. The end of the brush holder 1 far away from the key 11 is provided with a tail port 12, and the through hole is used for installing a motor, a machine body PCB, a battery and the like into the brush holder 1. The outer diameters of the parts of the brush holders 1 provided with the keys 11 are different from the outer diameters of the two ends of the brush holders 1, the outer diameters of some brush holders 1 are gradually increased or decreased from the parts corresponding to the keys 11 to the tail end port 12, and the outer diameters of some brush holders 1 are gradually increased or decreased from the parts corresponding to the keys 11 to the head end port. The application takes as an example that the outer diameter of the brush holder 1 gradually increases from the corresponding part of the key 11 to the tail port 12.

Example 1

The embodiment of the application discloses pressurize equipment.

Referring to fig. 1, the pressure holding apparatus includes a table 2, a pressing mechanism 3, a control mechanism 4, and a positioning mechanism 5.

Referring to fig. 1, a rear baffle 21, a control front plate 22, side plates 23 and a top plate 24 are provided on the table 2. The number of the side plates 23 is two, and the two side plates are respectively detachably arranged on two opposite sides between the rear baffle plate 21 and the control front plate 22, and the top plate 24 is arranged on the rear baffle plate 21, the control front plate 22 and the side plates 23. A pressing block mounting groove 25 and a positioning mounting groove 26 are arranged on the workbench 2; the positioning installation groove 26 is located between the rear baffle 21 and the control front plate 22, the briquetting installation groove 25 is located on one side of the control front plate 22 far away from the positioning installation groove 26, and an operation opening 27 is arranged between the control front plate 22 and the workbench 2.

Referring to fig. 2, the pressing mechanism 3 includes a lower pressing piece 31, an upper pressing piece 32, and a moving assembly 33. The lower pressing block 31 is detachably mounted in the pressing block mounting groove 25 of the table 2.

Referring to fig. 1, the moving assembly 33 is mounted on the control front plate 22, and the moving assembly 33 includes a telescopic cylinder 331, a controller 332 and a moving seat 333; the telescoping cylinder 331 may be a hydraulic or pneumatic cylinder. The controller 332 is mounted on the control front plate 22, connected to the telescopic cylinder 331, and configured to control the telescopic cylinder 331 to extend and retract. The movable seat 333 is fixed to the output end of the telescopic cylinder 331. The telescopic cylinder 331 in this embodiment is a cylinder, preferably a three-axis cylinder, and the controller 332 is a time relay, and can drive the cylinder at regular time. The three-axis cylinder can drive the movable seat 333 to move more stably.

Referring to fig. 1, the upper press 32 is installed at a side of the moving seat 333 adjacent to the lower press 31. And the upper pressing block 32 is located right above the lower pressing block 31. The lower surface of the upper pressing block 32 is provided with a plurality of upper concave through grooves 321, and the upper surface of the lower pressing block 31 is provided with lower concave through grooves 311 which are positioned right below the upper concave through grooves 321. The axial length of the upper concave through groove 321 and the axial length of the lower concave through groove 311 are both larger than the length of the key 11 of the brush holder 1, so that the upper pressing block 32 can completely cover and press the key 11, the lower pressing block 31 can sufficiently support the position of the key 11 on the brush holder 1, and the pressure maintaining effect is improved.

Referring to fig. 3, upper press 32 is driven and controlled by moving assembly 33 to move toward lower press 31 or move away from lower press 31. When the upper pressing block 32 moves to abut against the lower pressing block 31, the upper concave through groove 321 and the lower concave through groove 311 are pressed together to form a pressing ring groove 34, and the pressing ring groove 34 is matched with the position of the brush handle 1 where the key 11 is installed.

Referring to fig. 1, when the upper pressing block 32 moves away from the lower pressing block 31 and retracts, the distance between the upper concave through groove 321 and the lower concave through groove 311 is larger than the maximum outer diameter of the brush handle 1, and the upper concave through groove communicates with the operation opening 27.

Referring to fig. 3 and 4, the surface of the upper concave groove 321 and the surface of the lower concave groove 311 are both provided with a protective pad 37, so that the brush handle 1 can be more tightly connected with the pressing ring groove 34.

Referring to fig. 1 and 2, the positioning mechanism 5 includes a positioning seat 51 and a positioning block 52; the positioning seat 51 is detachably mounted in the positioning mounting groove 26 of the workbench 2; the positioning block 52 is mounted on the side of the positioning seat 51 facing the lower press block 31. Locating block 52 mates with rear port 12 of handle 1.

Referring to fig. 3, when handle 1 is pressed against pressing ring groove 34, positioning block 52, pressing ring groove 34 and handle 1 are in the same axial direction. The positioning block 52 can quickly position and mount the brush holder 1 to be pressure-maintained on the lower pressing block 31, and the side of the brush holder 1 with the key 11 faces the same direction, so that the rotation of the brush holder 1 in the pressure maintaining process is reduced, and the influence on the pressure maintaining effect is reduced.

Referring to fig. 1, the control mechanism 4 is mounted on the worktable 2 and includes a start key 41 and a power switch 42, and the power switch 42 is used for controlling the power on/off of the pressure maintaining device and the external circuit. The number of actuation keys 41 is equal to the number of moving members 33 for manipulating the moving members 33.

In this embodiment, the lower pressing block 31 has three lower through grooves 311, and each lower through groove 311 corresponds to an independent upper pressing block 32 and positioning block 52.

The embodiment of the application also discloses a pressure maintaining method for the key 11.

Referring to fig. 2, a method for maintaining pressure of a key 11 includes the following steps:

presetting pressure maintaining time; after the pressure maintaining equipment is powered on, the pressure maintaining time is preset for the time relay according to the required pressure maintaining time.

Pressure maintaining operation; the brush holder 1 with the keys 11 attached in advance is arranged in the concave through groove 311, and the moving assembly 33 is controlled to move the upper pressing block 32 and the lower pressing block 31 relatively to compress the brush holder 1, so that the pressure maintaining of the brush holder 1 with the keys 11 is realized.

Taking and disassembling the brush handle; the moving assembly 33 is controlled to move the upper pressing block 32 and the lower pressing block 31 away from each other, and the brush holder 1 is taken out. After the preset pressure maintaining time, the moving assembly 33 is reset, the upper pressing block 32 is separated from the brush holder 1 and the lower pressing block 31, and the brush holder 1 is conveniently taken out from the lower pressing block 31.

Example 2

The embodiment discloses a pressure maintaining device.

Referring to fig. 4, the present embodiment of the pressure holding apparatus differs from embodiment 1 in that: the inner diameter of the concave through slot 311 gradually decreases from one side close to the positioning seat 51 to the other side to form an inclined surface matched with the position of the brush holder 1 with the key 11, so that the inner diameter of the pressing ring slot 34 gradually decreases from one end close to the positioning mechanism 5 to the other end. Because the brush holder 1 is a tubular structure made by injection molding and has a certain elastic deformation amount, the brush holder 1 can be arranged between the lower concave through groove 311 and the positioning block 52 in a matching way, and the upper pressing block 32 acts on the keys 11 of the brush holder 1 to uniformly apply force and press the keys 11, thereby effectively improving the problems of tilting and the like existing in the use of the keys 11.

Referring to fig. 6 and 7, the positioning mechanism 5 further includes a movable plate 53 and a positioning driving assembly 54.

The upper part of one side of the positioning seat 51 close to the lower pressing block 31 is provided with a convex block 511. The upper part of the movable plate 53 is hinged to the protrusion 511, and one side of the movable plate 53 away from the lower pressing block 31 can tightly abut against the positioning seat 51. The positioning block 52 is detachably mounted on one side of the movable plate 53 close to the lower pressing block 31 by bolts.

Referring to fig. 8, the positioning socket 51 is provided with a through hole 512, and the through hole 512 penetrates through the positioning socket 51.

Referring to fig. 8 and 9, the positioning driving assembly 54 includes a driving cylinder 541 and a driving rod 542, the driving rod 542 is hinged in the through hole 512 in the middle, and the front end of the driving rod 542 passes through the through hole 512 and abuts against one side of the movable plate 53 away from the positioning seat 51; the rear end of the driving rod 542 passes through the through hole 512 and is located on one side of the positioning seat 51 far away from the movable plate 53; the rear end of the driving lever 542 is provided with a bar hole 543, and the longitudinal direction of the bar hole 543 is parallel to the longitudinal direction of the driving lever 542.

The driving cylinder 541 is installed on one side of the positioning seat 51 far away from the movable plate 53, and the output shaft of the driving rod 542 is hinged to the strip hole 543 and moves along the strip hole 543. In this embodiment, drive cylinder 541 is mounted directly above the rear end of drive rod 542. The driving cylinder 541 is an air cylinder in this embodiment.

The rear end of the driving rod 542 can be driven to move along the axial direction of the output shaft of the driving cylinder 541, namely to move up and down, through the driving cylinder 541; thereby driving the driving rod 542 to rotate, so that the front end of the driving rod 542 pushes the movable plate 53 to rotate away from the side of the protrusion 511, and the positioning block 52 tilts upward toward the operation opening 27, thereby facilitating the assembly or disassembly of the brush handle 1.

Referring to fig. 9, a sliding groove 531 is disposed on one side of the movable plate 53 near the through opening 512 and is matched with the front end of the driving rod 542. Iron pieces 532 are embedded in the sliding grooves 531. A magnet 544 is fixed at the front end of the driving rod 542, so that the movable plate 53 is normally attracted to the front end of the driving rod 542. When the front end of the driving rod 542 is controlled by the driving cylinder 541 to rotate in the through hole 512, the movable plate 53 drives the positioning block 52 to move toward the through hole 512 until abutting against the positioning seat 51.

Referring to fig. 9 and 10, the positioning block 52 is provided with extending elastic pieces 55 at the edge thereof close to one side of the lower pressing block 31; in this embodiment, there are two extension elastic pieces 55, the two extension elastic pieces 55 are disposed vertically symmetrically, and a convex portion is disposed on the lower surface of the extension elastic piece 55 located below in a direction away from the extension elastic piece 55 located above. When the two extending elastic pieces 55 pass through the tail end port 12 and abut against the brush holder 1, the extending elastic pieces 55 located below are in interference contact with the brush holder 1 along with the downward concave through groove 311 of the brush holder 1 moving and contacting, under the action of the inclined surface of the downward concave through groove 311, so that the brush holder 1 is stably located between the positioning block 52 and the downward concave through groove 311, and the upper press block 32 is convenient to move downwards for pressure maintaining.

After the pressure maintaining of the button 11 is completed, the movable plate 53 is driven to rotate by the driving cylinder 541 and the driving rod 542, and the brush handle 1 is separated from the recessed through slot 311, so that the extending elastic sheet 55 located below is released from the inner wall of the brush handle 1, and the brush handle 1 is conveniently taken away by the positioning mechanism 5.

Referring to fig. 6 and 8, the upper pressing block 32 is provided with a guide plate 35 extending toward the adjacent upper pressing block 32. A guide rod 36 parallel to the extension direction of the triaxial cylinder is arranged in the guide plate 35 in a penetrating manner; the lower end of the guide rod 36 is mounted to the lower press block 31.

Referring to fig. 6, a fixed block 28 and a calibration rod 29 are also arranged on the worktable 2; the calibration rod 29 is arranged through the fixed block 28; the positioning seat 51 is connected to one end of the calibration rod 29 by a screw, and the lower pressing block 31 is connected to the other end of the calibration rod 29 by a screw. Therefore, the positioning seat 51 and the lower pressing block 31 can be accurately connected, and the alignment of the positioning block 52 and the concave through groove 311 is improved.

The implementation principle of the pressure maintaining equipment in the embodiment of the application is as follows:

installing the brush handle 1, firstly controlling the driving cylinder 541, driving the driving rod 542 to drive the movable plate 53 and the positioning block 52 to rotate until the positioning block 52 faces the operation opening 27; then the brush handle 1 to be pressure-maintained is sleeved with the extension elastic sheet 55 and the positioning block 52 and is connected with the positioning mechanism 5; at the moment, one end of the brush holder 1 far away from the positioning block 52 is positioned between the upper pressing block 32 and the lower pressing block 31; then, the driving cylinder 541 is controlled to drive the movable plate 53 and the positioning block 52 to move toward the positioning seat 51, so that the brush holder 1 gradually contacts the concave through groove 311, and the brush holder 1 gradually moves toward the positioning block 52 under the action of the inclined surface of the concave through groove 311, so that the brush holder 1 is stably and fittingly mounted on the positioning mechanism 5 and the lower pressing block 31.

And (4) pressure maintaining operation, namely presetting pressure maintaining time in the time relay, controlling the starting key 41, driving the upper pressing block 32 to move towards the lower pressing block 31 along the guide rod 36 until the upper concave through groove 321 abuts against the key 11 of the brush holder 1, applying force to the key 11 for pressure maintaining, and at the moment, pressing the lower surface of the upper pressing block 32 against the upper surface of the lower pressing block 31.

The brush handle 1 is disassembled, and after the preset pressure maintaining time is up, the upper pressing block 32 is automatically separated from the lower pressing block 31 and the brush handle 1; then, the driving cylinder 541 and the driving rod 542 are controlled to push the movable plate 53 to turn over, so as to drive the brush handle 1 to separate from the recessed through slot 311; when the brush holder 1 is completely separated from the concave through slot 311, the external force between the extension spring 55 and the inner wall of the brush holder 1 is released, so that the brush holder 1 can be conveniently detached from the positioning mechanism 5.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.