Single-hand quick disassembly and assembly mechanism and brush winding assembly for endoscope decontamination machine

Abstract

The invention discloses a single-hand quick disassembling and assembling mechanism which comprises a driving shaft, a lifting disc, a rotating disc, a working piece and a compression spring. The driving shaft is a telescopic shaft; the device comprises a spline shaft, a spline shaft sleeve and a step shaft, the spline shaft sleeve is slidably sleeved on the spline shaft; the step shaft comprises a connecting disc; the spline shaft sleeve is fixedly connected with the connecting disc from below; a pin is transversely arranged at the top end of the step shaft; the top end of the spline shaft is inserted into the shaft hole; the lifting disc sleeves the driving shaft, a plurality of inclined surface grooves are formed in the edge of the top of the lifting disc, and one end of each inclined surface groove is an inclined surface; a stepped hole is formed in the center of the lifting disc, and the connecting disc is located below the stepped hole; the rotating disc sleeves the driving shaft and is positioned above the lifting disc, and the bottom edge of the rotating disc is correspondingly provided with the same number of inclined surface bumps; and the compression spring sleeves the spline shaft. The device is easy and convenient to operate and accurate in positioning, and single-hand disassembly and assembly can be achieved. The invention further provides a brush winding assembly for the endoscope decontamination machine.

Description

Technical Field

[0001] This invention relates to a single-handed quick assembly / disassembly mechanism and a brush winding assembly for the brush device of an endoscope cleaning and disinfection machine. Background Technology

[0002] Many devices have components that need to be repeatedly disassembled and reassembled. In most cases, the faster the disassembly and reassembly, the better. However, how to achieve both speed and precision while ensuring integration has become a problem that needs to be solved.

[0003] In the prior art, Chinese Patent 201610233107.X discloses a tooling device for a nuclear radiation environment, particularly a rapid assembly and disassembly system for an articulated robotic arm in a nuclear radiation environment. This system mainly includes a robotic arm linkage system, robotic arm assemblies, a loading and unloading mechanism, and a control system. The robotic arm linkage system is linked to the robotic arm assemblies. The loading and unloading mechanism is the tool for assembling and disassembling the robotic arm assemblies. The robotic arm linkage system mainly consists of a cantilevered linkage moving frame, a suspended linkage telescopic cylinder, and a connector. The robotic arm assemblies consist of multiple articulated robotic arms, including a braking part and a driving part. The braking part mainly includes a large arm, a middle arm, and a small arm connected from top to bottom. The driving part mainly includes a servo drive motor, a reducer, and a worm gear transmission mechanism. The loading and unloading mechanism mainly includes upper and lower housing loading and unloading structures, a cylinder-driven lifting platform, a loading and unloading support frame, and a moving base.

[0004] Chinese Patent 202223242122.0 discloses a quick-release and disassembly structure for a latch assembly and a quick-release and disassembly structure. The quick-release and disassembly structure includes a box, a module, and a latch assembly. The latch assembly includes a housing, a latch, a push rod, a top block, and a fixed shaft. Both the latch and the push rod are telescopically mounted on the housing. The telescopic direction of the latch is perpendicular to the telescopic direction of the push rod. The top block is rotatably mounted on the housing via the fixed shaft. The push rod is used to push the latch to retract and, after the latch retracts, to push the top block to rotate around the fixed shaft.

[0005] Chinese Patent 202420480062.6 discloses a one-click quick-release structure and a one-click quick-release steering wheel structure, including: a connector and a quick-release device. The connector is detachably mounted on the quick-release device and has multiple ball grooves. The quick-release device includes a fixed seat, a neck ring, a handle, and a connecting rod. The fixed seat has multiple slots relative to the ball grooves, and steel balls are placed in the slots. The neck ring is fitted around the fixed seat to restrict the movement of the steel balls, and the neck ring has multiple oblique grooves relative to the slots. One end of the handle is connected to the fixed seat, and the other end of the handle is connected to one end of the connecting rod. The other end of the connecting rod is rotatably connected to the neck ring. Rotating the handle causes the neck ring to rotate, thereby locking / unlocking the connector and the quick-release device.

[0006] The drawback of the above technical solutions is that they require two hands to operate and the disassembly and assembly process is cumbersome. Therefore, how to provide a one-handed, quick disassembly and assembly mechanism that can be disassembled and assembled with a simple process has become a problem that the industry needs to solve. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the main objective of this invention is to provide a one-handed quick assembly / disassembly mechanism that is simple to assemble and disassemble and enables quick assembly / disassembly with one hand.

[0008] To achieve the aforementioned main objectives, this invention discloses a one-handed quick assembly / disassembly mechanism for inserting a pin at the top of a drive shaft into a pin receiving groove in a working part; it includes:

[0009] The drive shaft is a telescopic shaft; it includes a lower spline shaft, a spline bushing, and an upper stepped shaft; the spline bushing is slidably fitted onto the spline shaft; the stepped shaft includes a connecting plate at the bottom; the spline bushing is fixedly connected to the connecting plate from below; the top of the stepped shaft is provided with a horizontally arranged pin; the bottom of the stepped shaft is provided with a shaft hole, into which the top of the spline shaft is inserted;

[0010] The lifting plate is fitted onto the drive shaft, and its top edge is provided with several sloping grooves, one end of which is a sloping surface; the center of the lifting plate is provided with a stepped hole that is smaller at the top and larger at the bottom, and the connecting plate is located below the stepped hole.

[0011] A rotating disk is fitted onto a drive shaft and located above a lifting disk. The bottom edge of the rotating disk has the same number of inclined protrusions. The inclined protrusions are located within corresponding inclined grooves. One end of the inclined protrusion is an inclined surface. The inclined surface of the inclined protrusion and the inclined surface of the inclined groove face each other and fit together. The size of the inclined groove is larger than the size of the inclined protrusion. The top edge of the rotating disk has a positioning groove.

[0012] The workpiece is detachably mounted on a rotating disk; it includes a handle and a cylindrical groove wall; the bottom end of the cylindrical groove wall is slotted to form a pin receiving groove with the opening facing downward and at least two wall segments, the bottom end of each wall segment being a bevel; corresponding to the positioning groove, a positioning protrusion is provided on the outer circumference of the bottom of the workpiece.

[0013] A compression spring is fitted onto the splined shaft, located below the splined shaft sleeve.

[0014] In this invention, there are at least two pins so that the stepped shaft can drive the working part to rotate.

[0015] In this invention, the lifting plate can be raised and lowered but cannot be rotated, while the rotating plate can be rotated but is not driven by the drive shaft.

[0016] In this invention, both the inclined protrusions and the inclined grooves are evenly distributed along the circumference.

[0017] In this invention, after the positioning protrusion is inserted into the positioning groove, rotating the handle can cause the working part to drive the rotating disk to rotate.

[0018] In this invention, the bottom end of the compression spring is fixed, while the top end is connected to the splined bushing.

[0019] The single-handed quick assembly and disassembly mechanism of the present invention integrates the components involved in assembly and disassembly longitudinally onto the drive shaft, but does not interfere with the horizontal rotation of the drive shaft. It has a compact structure, saves space, provides precise positioning, and is easy to operate.

[0020] According to another specific embodiment of the present invention, the pin receiving groove is cross-shaped; there are four wall sections.

[0021] According to another specific embodiment of the present invention, a handle is provided at the top of the working part.

[0022] According to another specific embodiment of the present invention, the single-handed quick assembly and disassembly mechanism further includes a frame, on which the lifting plate and the rotating plate are mounted; the frame is also provided with a rotating plate pressure block, which is shaped like a "7" and includes a column and a cantilever block, with the column located outside the rotating plate and the cantilever block located above the rotating plate; after the working part is installed in place, the positioning protrusion faces the rotating plate pressure block.

[0023] In this design, after the working part is installed in place, the distance between the cantilever block and the positioning protrusion is relatively close to prevent the positioning protrusion from falling out of the positioning groove.

[0024] According to another specific embodiment of the present invention, there are two positioning grooves, spaced 180° apart.

[0025] According to another specific embodiment of the present invention, the frame is provided with a lifting plate outer shell, which is annular; the inner wall of the outer shell is provided with a limiting groove, and the outer wall of the lifting plate is provided with a corresponding limiting block; the limiting block is engaged with the limiting groove to ensure that the lifting plate does not rotate while lifting.

[0026] In this design, both the limiting groove and the limiting block are evenly distributed along the circumference.

[0027] According to another specific embodiment of the present invention, the side of the spline shaft is provided with an elongated groove, the cross-section of which is semi-circular; the center of the spline bushing is provided with a circular shaft hole, and the edge of the circular shaft hole is provided with a semi-circular protrusion; the semi-circular protrusion is embedded in the elongated groove, so that the spline shaft can drive the spline bushing to rotate.

[0028] In this design, the spline shaft passes through a circular shaft hole; the spline bushing can move up and down along the long groove.

[0029] On the other hand, the present invention also provides a brush winding assembly for an endoscope cleaning and disinfection machine, which uses the above-mentioned single-hand quick assembly and disassembly mechanism; the working part is a winding box, which includes a winding component and a box cover; the box cover is fitted over the winding component, and a handle is provided on the box cover; the winding component is a cylindrical shape with a closed top and an open bottom, and the cylindrical groove wall is provided at the top of the inside of the winding component.

[0030] In this design, the winding component is provided with a wire groove for placing the brush and a wire post for winding the brush; the outer circumference of the bottom of the box cover is provided with positioning protrusions that correspond one-to-one with the positioning grooves.

[0031] According to another specific embodiment of the present invention, the brush winding assembly further includes a drive motor, which drives a spline shaft via a driving bevel gear and a driven bevel gear.

[0032] According to another specific embodiment of the present invention, the driven bevel gear is connected to the spline shaft via a gear connecting shaft, and a one-way bearing is provided on the gear connecting shaft.

[0033] In this design, when the drive motor rotates forward, the driven bevel gear drives the spline shaft to rotate through the one-way bearing; when the drive motor rotates in reverse, the one-way bearing disengages the driven bevel gear from the spline shaft, and the driven bevel gear cannot drive the spline shaft to rotate.

[0034] The brush winding assembly is driven by a single motor, achieving both forward and reverse rotation. Its power transmission direction is: drive motor - one-way bearing - spline shaft - spline bushing - stepped shaft.

[0035] The operating procedure for the one-handed quick assembly / disassembly mechanism is as follows:

[0036] 1. Insert the positioning protrusion into the positioning groove and make the pin enter the pin receiving groove; each pin is located inside the wall section and in contact with the bottom end of the wall section;

[0037] 2. Turn the handle to make the workpiece rotate counterclockwise, which in turn drives the rotating disk to rotate counterclockwise; at this time, the inclined surface of the inclined protrusion will move away from the inclined surface groove, and a gap will appear between the two.

[0038] 3. Due to the gap between the inclined surface of the inclined protrusion and the inclined surface of the inclined groove, under the action of the compression spring, the spline bushing, connecting plate, and lifting plate rise in sequence until the inclined surface of the inclined protrusion and the inclined surface of the inclined groove come into contact again.

[0039] 4. As the connecting plate rises, the step shaft also rises, which in turn pushes the pin upwards; due to the obstruction at the bottom of the wall section, the pin will move up along the slope at the bottom of the wall section (at this time, the step shaft will rotate accordingly) until it is fully inserted into the wall section.

[0040] 5. When it is necessary to disassemble the workpiece, turn the handle to make the workpiece rotate clockwise, which in turn drives the rotating plate to rotate clockwise; at this time, the inclined surface of the inclined protrusion will move towards the inclined surface of the inclined groove, and the inclined surface of the inclined protrusion will press against the inclined surface of the inclined groove, thereby forcing the lifting plate to move down.

[0041] 6. The lifting plate moves down, which will push the connecting plate down, and the step shaft will also move down, causing the pin to move down; the pin will leave the wall section and move down along the inclined surface at the bottom of the wall section (at this time, the step shaft will rotate accordingly); at this time, the positioning protrusion can be disengaged from the positioning groove and the working part can be removed.

[0042] The present invention has the following beneficial effects:

[0043] The single-handed quick assembly and disassembly mechanism of the present invention can realize single-handed assembly and disassembly. It has a compact structure, saves space, has precise positioning, and is easy to operate.

[0044] To more clearly illustrate the purpose, technical solution, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the overall structure of the brush device in Embodiment 1;

[0046] Figure 2 This is a partial structural schematic diagram of the brush winding assembly in Embodiment 1;

[0047] Figure 3 This is a partial structural diagram of the single-handed quick assembly / disassembly mechanism in Embodiment 1;

[0048] Figure 4 This is a partial structural diagram of the single-handed quick assembly / disassembly mechanism in Embodiment 1;

[0049] Figure 5 This is a schematic diagram of the spline bushing structure in Example 1;

[0050] Figure 6 This is a schematic diagram of the stepped shaft structure in Example 1;

[0051] Figure 7 This is a schematic diagram of the lifting plate structure in Example 1;

[0052] Figure 8 This is a schematic diagram of the pin receiving groove in Example 1;

[0053] Figure 9 This is an exploded view of the single-handed quick assembly / disassembly mechanism in Embodiment 1;

[0054] Figure 10 This is a schematic diagram of the outer shell of the lifting plate in Embodiment 1. Detailed Implementation

[0055] Many specific details are set forth in the following description in conjunction with embodiments in order to provide a full understanding of the invention. However, it should be understood that the following embodiments and detailed descriptions are for illustrative purposes only and do not limit the scope of protection of the invention.

[0056] Example 1

[0057] like Figures 1-10 As shown, this embodiment provides a brush winding assembly 8 for a brush device 7 used in an endoscope cleaning and disinfection machine, which includes a one-handed quick-release mechanism. The one-handed quick-release mechanism is used to insert the pin at the top of the drive shaft into the pin receiving groove of the working part; it includes a drive shaft 1, a lifting plate 2, a rotating plate 3, a working part (winding box 4), a compression spring 5, and a frame 6.

[0058] The drive shaft 1 is a telescopic shaft, which includes a lower spline shaft 101, a spline bushing 102, and an upper stepped shaft 103. The spline bushing 102 is slidably fitted onto the spline shaft 101. The stepped shaft 103 includes a bottom connecting plate 104. The spline bushing 102 is fixedly connected to the connecting plate 104 from below. The top of the stepped shaft 103 is provided with a horizontally arranged pin 105. The bottom of the stepped shaft 103 is provided with a shaft hole 106, into which the top of the spline shaft 101 is inserted. There are two pins 105, spaced 180° apart. The side of the spline shaft 101 is provided with two elongated grooves 107 spaced 180° apart, and the cross-section of the elongated grooves 107 is semi-circular. The center of the spline bushing 102 is provided with a circular shaft hole 108, and the edge of the circular shaft hole 108 is provided with two semi-circular protrusions 109 spaced 180° apart. The semi-circular protrusions 109 are embedded in the elongated grooves 107.

[0059] The lifting plate 2 is mounted on the drive shaft 1, and its top edge is provided with 4 inclined grooves 201, one end of which is inclined; the center of the lifting plate 2 is provided with a stepped hole 202 that is smaller at the top and larger at the bottom, and the connecting plate 104 is located below the stepped hole 202.

[0060] The rotating disk 3 is mounted on the drive shaft 1 and is located above the lifting disk 2. The bottom edge of the disk has the same number of inclined protrusions 301. The inclined protrusions 301 are located within the corresponding inclined grooves 201. One end of the inclined protrusion 301 is inclined, and the inclined surface of the inclined protrusion 301 faces and fits with the inclined surface of the inclined groove 201. The size of the inclined groove 201 is larger than the size of the inclined protrusion 301. The top edge of the rotating disk 3 has a positioning groove 302. The inclined protrusions 301 and the inclined grooves 201 are evenly distributed along the circumference.

[0061] The winding box 4 is detachably mounted on the rotating disk 3. It includes a handle 401, a cover 402, a winding component 403, and a cylindrical groove wall. The cover 402 is fitted over the winding component 403, and the handle 401 is located at the top of the cover 402. The winding component 403 is a cylindrical shape with a closed top and an open bottom. The cylindrical groove wall is located at the top of the inside of the winding component 403. The bottom of the cylindrical groove wall is slotted to form a cross-shaped pin receiving groove 404 with the opening facing downward and four wall segments 405. The bottom of each wall segment 405 is a bevel. The pin receiving groove 404 is located at the top of the inside of the winding component 403. The outer circumference of the bottom of the cover 402 is provided with positioning protrusions 406 that correspond one-to-one with the positioning grooves 302. There are two positioning grooves 302, spaced 180° apart. The winding component 403 is provided with a wire groove 407 for placing a brush and a wire post 408 for winding the brush.

[0062] The compression spring 5 is sleeved on the splined shaft 101 and is located below the splined shaft sleeve 102; the bottom end of the compression spring 5 is fixed and the top end is connected to the splined shaft sleeve 102.

[0063] The lifting plate 2 and the rotating plate 3 are both installed on the frame 6; the frame 6 is provided with a rotating plate pressure block 601, which is in the shape of a "7" and includes a column 602 and a cantilever block 603. The column 602 is located outside the rotating plate 3, and the cantilever block 603 is located above the rotating plate 3; after the winding box 4 is installed in place, the positioning protrusion 406 is directly opposite the rotating plate pressure block 601.

[0064] The frame 6 is provided with a lifting plate outer shell 604, which is annular; the inner wall of the outer shell 604 is provided with 4 limiting grooves 605, and the outer wall of the lifting plate 2 is provided with corresponding limiting blocks 606; the limiting blocks 606 are inserted into the limiting grooves 605, and the limiting grooves 605 and the limiting blocks 606 are evenly distributed along the circumference.

[0065] The brush winding assembly 8 further includes a drive motor (not shown in the figure), which drives the spline shaft 101 through a driving bevel gear 801 and a driven bevel gear 802; the driven bevel gear 802 is connected to the spline shaft 101 through a gear connecting shaft (not shown in the figure), and a one-way bearing (not shown in the figure) is provided on the gear connecting shaft.

[0066] Although the present invention has been described above by way of embodiments, the above embodiments are only used to exemplify possible implementations of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent substitutions or changes made by those skilled in the art in accordance with the present invention should also be covered by the scope of protection defined by the claims of the present invention.

Claims

1. A single-handed quick-release mechanism for inserting a pin at the top of a drive shaft into a pin receiving groove in a working part; characterized in that, The single-handed quick assembly / disassembly mechanism includes: A drive shaft, which is a telescopic shaft, includes a lower spline shaft, a spline bushing, and an upper stepped shaft; the spline bushing is slidably fitted onto the spline shaft; the stepped shaft includes a bottom connecting plate; the spline bushing is fixedly connected to the connecting plate from below; the top of the stepped shaft is provided with a horizontally arranged pin; the bottom of the stepped shaft is provided with a shaft hole, and the top of the spline shaft is inserted into the shaft hole; The lifting plate is sleeved on the drive shaft, and its top edge is provided with several inclined grooves, one end of which is an inclined surface; the center of the lifting plate is provided with a stepped hole that is smaller at the top and larger at the bottom, and the connecting plate is located below the stepped hole; A rotating disk, fitted onto the drive shaft and positioned above the lifting disk, has the same number of beveled protrusions on its bottom edge; the beveled protrusions are located within corresponding beveled grooves, one end of each beveled protrusion is beveled, and the beveled surfaces of the beveled protrusions and the beveled surfaces of the beveled grooves face each other and engage; the size of the beveled grooves is larger than the size of the beveled protrusions; the top edge of the rotating disk has a positioning groove. The working part is detachably mounted on the rotating disk; it includes a handle and a cylindrical groove wall; the bottom end of the cylindrical groove wall is slotted to form a pin receiving groove with the opening facing downward and at least two wall segments, the bottom end of each wall segment being a bevel; corresponding to the positioning groove, a positioning protrusion is provided on the outer circumference of the bottom of the working part; A compression spring is fitted onto the splined shaft and is located below the splined shaft sleeve.

2. The single-handed quick assembly / disassembly mechanism according to claim 1, characterized in that, The pin receiving groove is cross-shaped; there are four wall sections.

3. The single-handed quick assembly / disassembly mechanism according to claim 1, characterized in that, The handle is located at the top of the workpiece.

4. The single-handed quick assembly / disassembly mechanism according to claim 1, characterized in that, The system further includes a frame, on which the lifting plate and the rotating plate are mounted; the frame is also provided with a rotating plate pressure block, which is shaped like a "7" and includes a column and a cantilever block. The column is located outside the rotating plate, and the cantilever block is located above the rotating plate; after the working part is installed in place, the positioning protrusion faces the rotating plate pressure block.

5. The single-handed quick assembly / disassembly mechanism according to claim 1, characterized in that, There are two positioning grooves, spaced 180° apart.

6. The single-handed quick assembly / disassembly mechanism according to claim 4, characterized in that, The frame is provided with a lifting plate outer shell, which is annular; the inner wall of the outer shell is provided with a limiting groove, and the outer wall of the lifting plate is provided with a corresponding limiting block, which is engaged in the limiting groove.

7. The single-handed quick assembly / disassembly mechanism according to claim 1, characterized in that, The side of the spline shaft is provided with an elongated groove, the cross-section of which is semi-circular; the center of the spline shaft sleeve is provided with a circular shaft hole, the edge of which is provided with a semi-circular protrusion, which is embedded in the elongated groove.

8. A brush winding assembly for an endoscope cleaning and disinfection machine, comprising a single-handed quick-release mechanism as described in any one of claims 1-7, characterized in that, The working part is a winding box, which includes a winding component and a box cover; the box cover is fitted over the winding component, and the handle is provided on the box cover; the winding component is a cylindrical shape with a closed top and an open bottom, and the cylindrical groove wall is provided at the top of the inside of the winding component.

9. The brush winding assembly according to claim 8, characterized in that, It further includes a drive motor that drives the splined shaft via a driving bevel gear and a driven bevel gear.

10. The brush winding assembly according to claim 9, characterized in that, The driven bevel gear is connected to the splined shaft via a gear connecting shaft, and a one-way bearing is provided on the gear connecting shaft.

Images