A kind of open retaining ring press-fitting equipment

Abstract

A split retaining ring press-fitting device is used to assemble a valve core, wherein the valve core has a valve core shaft and a spring and a plug sleeved on the valve core shaft; it includes: a fixed seat for supporting the valve core; a pressing mechanism, wherein the pressing mechanism is arranged on the fixed seat, and the pressing mechanism has a pressure head, and the pressure head moves along the axis of the valve core shaft; wherein after the pressure head moves and abuts against the plug, the spring is compressed. Thus, when assembling the valve core, the worker can support the valve core through the fixed seat, and then the pressure head is driven by the pressing mechanism to press the plug, so as to facilitate the installation of the split retaining ring on the valve core shaft. Thus, the worker no longer needs to press the plug manually, thereby improving work efficiency, reducing the labor intensity of the worker, and facilitating the worker to assemble the valve core.

Description

Technical Field

[0001] The invention relates to the technical field of equipment installation, in particular to an open retaining ring press-fitting device. Background Art

[0002] During production, the valve core usually needs to be pressed with an opening retaining ring on the valve core shaft to limit the plug and prevent the plug from detaching from the valve core shaft, while allowing the plug to move freely within the range of spring movement.

[0003] In the process of producing valve cores, when installing the split retaining ring, workers usually press one end of the plug with one hand, and use the other hand to hold the circlip pliers to open the installation opening of the split retaining ring, and install the split retaining ring to the notch of the valve core shaft. Since the above operations are all done manually, there are problems such as low work efficiency, high labor intensity, and inconvenient operation. Therefore, there is an urgent need for a split retaining ring press-fitting equipment that can improve work efficiency, reduce the labor intensity of workers, and facilitate workers to assemble the valve core. Summary of the invention

[0004] The present application provides an open retaining ring pressing device, which can improve work efficiency, reduce the labor intensity of workers, and facilitate workers to assemble the valve core.

[0005] In order to achieve the above-mentioned purpose, the present application provides an open retaining ring pressing device for assembling a valve core, wherein the valve core has a valve core shaft and a spring and a plug sleeved on the valve core shaft; including: a fixed seat for supporting the valve core; a pressing mechanism, wherein the pressing mechanism is arranged on the fixed seat, and the pressing mechanism has a pressing head, and the pressing head moves along the axis of the valve core shaft; wherein, after the pressing head moves and abuts against the plug, the spring is compressed.

[0006] From the above, when assembling the valve core, the worker can support the valve core through the fixed seat, and then use the pressing mechanism to drive the pressure head to press the plug to facilitate the installation of the open retaining ring on the valve core shaft. As a result, the worker no longer needs to press the plug manually, thereby improving work efficiency, reducing the labor intensity of the workers, and facilitating the workers to assemble the valve core.

[0007] In some embodiments, the pressure head includes: an abutment head, which is arranged around the edge of the plug and has a first accommodating cavity formed therein; and an installation port, which is arranged on the abutment head and connected to the first accommodating cavity.

[0008] As described above, by providing the installation opening on the abutment joint, workers can install the open retaining ring on the valve core shaft through the installation opening, thereby facilitating the workers to install the open retaining ring, thereby improving work efficiency.

[0009] In some embodiments, the pressure head further includes: a second accommodating chamber, the second accommodating chamber is arranged along the axial direction of the valve core shaft, and one end of the second accommodating chamber is connected to the first accommodating chamber.

[0010] From the above, by setting the second accommodating chamber, when the abutting joint presses the plug, the valve core shaft can pass through the first accommodating chamber and enter the second accommodating chamber to prevent the valve core shaft from causing obstruction when the abutting joint presses the plug.

[0011] In some embodiments, the pressing mechanism includes: a guide tube, the pressure head is arranged in the guide tube, the guide tube is arranged along the axial direction of the valve core shaft, and a first guide port is arranged on the guide tube along the guide tube; a cam, the axis of the cam is parallel to the axis of the valve core shaft, and a groove-shaped first guide rail is arranged on the outer peripheral surface of the cam, and the first guide rail is inclined along the outer peripheral surface of the cam; a motor, the motor is transmission-connected to the cam; a pull rod, the pull rod is arranged in the guide port and connected to the pressure head, and the end of the pull rod extends into the first guide rail.

[0012] Since the end of the pull rod extends into the first guide rail, when the motor drives the cam to rotate, the pull rod can move along the first guide rail. Since the first guide rail is inclined along the outer peripheral surface of the cam, the pull rod can move along the guide port, thereby driving the pressure head to move along the axial direction of the valve core shaft to press the plug on the valve core shaft, so as to facilitate workers to install the opening retaining ring.

[0013] In some embodiments, two first guide rails are provided, and the two first guide rails are inclined in the same rotation direction; a groove-shaped second guide rail and a third guide rail are also provided on the outer peripheral surface of the cam, and the second guide rail and the third guide rail are respectively located on two planes, and the two planes are parallel and perpendicular to the axis of the cam; wherein, the two ends of one first guide rail are respectively connected to one end of the second guide rail and the third guide rail, and the two ends of the other first guide rail are respectively connected to the other end of the second guide rail and the third guide rail.

[0014] From the above, the second guide rail and the third guide rail are connected through the two first guide rails to form a closed track. Since the second guide rail and the third guide rail are respectively on two planes, when the pull rod moves along the first guide rail, the second guide rail, and the third guide rail, it will reciprocate in the axial direction of the valve core shaft. Therefore, the motor only needs to rotate in one direction to drive the abutment head to press and release the plug on the valve core shaft. Therefore, the control of the pressing mechanism can be simplified.

[0015] In some embodiments, it also includes: a fixed cover, the cam is arranged in the fixed cover, a second guide port is arranged on the fixed cover, the second guide port extends along the axial direction of the valve core shaft, and the end of the pull rod passes through the second guide port and extends into the first guide rail; a ball, a plurality of balls are arranged and located between the end of the cam and the fixed cover.

[0016] From the above, by arranging a ball between the cam and the fixed cover, the sliding friction between the cam and the fixed cover is converted into rolling friction, thereby reducing the friction between the cam and the fixed cover and reducing the noise of the pressing mechanism during operation.

[0017] In some embodiments, a groove is provided at the end of the cam, the groove is annular, and the groove is coaxially arranged with the cam; a plurality of recesses are provided at positions corresponding to the groove in the fixed cover; wherein the ball is arranged in the recess and moves along the groove.

[0018] From the above, by providing the recess, the position of the ball in the recess can be prevented from moving, and by moving the ball along the groove, the position between the cam and the ball can be prevented from shifting, thereby improving the stability of the cam when rotating.

[0019] In some embodiments, it also includes: a controller, which is electrically connected to the motor; and an angle sensor, which is electrically connected to the controller and is used to detect the rotation angle of the drive shaft of the motor.

[0020] From the above, the rotation angle of the motor drive shaft can be detected by the angle sensor, and the controller can determine the angle of the cam according to the information detected by the angle sensor, and then determine the position of the abutment head. Therefore, when the press-fitting device is used for assembly, the position of the abutment head can be accurately controlled.

[0021] In some embodiments, the valve core also has an open retaining ring, a press-fit port is provided on the open retaining ring, and the size of the press-fit port is smaller than the diameter of the valve core shaft; it also includes: a press-fitting handle, a retaining ring groove is provided on the end of the press-fitting handle, and the retaining ring groove is adapted to the end of the open retaining ring facing away from the press-fitting port.

[0022] From the above, the split retaining ring can be installed in the retaining ring groove of the press-fitting handle, so that the installation opening of the split retaining ring faces outward. Thus, the worker can press-fit the split retaining ring onto the valve core shaft conveniently and labor-savingly. This improves work efficiency, reduces the labor intensity of the workers, and facilitates the workers to assemble the valve core.

[0023] In some embodiments, the retaining ring groove is magnetic.

[0024] As described above, by making the retaining ring groove magnetic, the open retaining ring can be adsorbed to prevent the open retaining ring from falling out of the retaining ring groove when the open retaining ring is installed using the press-fitting handle. This facilitates the operation of workers, improves work efficiency, and reduces the labor intensity of workers.

[0025] These and other aspects of the invention will become apparent from the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The following further illustrates the various features of the present invention and the relationship between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, some features are not shown in actual proportion, and some drawings may omit the conventional features in the field involved in the present application and are not necessary for the present application, or additionally show the features that are not necessary for the present application. The combination of the various features shown in the accompanying drawings is not intended to limit the present application. In addition, throughout this specification, the same figure numerals refer to the same content. The specific description of the drawings is as follows:

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of a valve core;

[0028] Figure 2 for Figure 1 Schematic diagram of the exploded view of the middle valve core;

[0029] Figure 3 It is a three-dimensional structural schematic diagram of another valve core;

[0030] Figure 4 for Figure 3 Exploded diagram of the middle valve core;

[0031] Figure 5 This is a schematic diagram of the three-dimensional structure of the press-fitting device in the embodiment of the present application;

[0032] Figure 6 for Figure 5 Schematic diagram of the front structure of the medium voltage equipment;

[0033] Figure 7 for Figure 5 The left side structural diagram of the medium voltage equipment;

[0034] Figure 8 for Figure 5 Schematic diagram of the top structure of the medium-pressure equipment;

[0035] Fig. 9 for Figure 5 A partial cross-sectional schematic diagram of a medium-pressure installation;

[0036] Fig.10 for Figure 5 Exploded diagram of medium-pressure equipment;

[0037] Fig.11 for Figure 5 Schematic diagram of the structure of the medium pressure handle.

[0038] Description of Reference Numerals

[0039] 10 valve core; 11 valve core shaft; 11a notch; 12 plug; 13 spring; 14 open retaining ring; 14a press-fitting port; 15 gasket; 16 retaining plate; 20 press-fitting device; 100 fixed seat; 110 supporting groove; 200 pressing mechanism; 210 pressing head; 211 abutting head; 212 first accommodating chamber; 213 installation port; 214 second accommodating chamber; 220 guide tube; 221 first guide port; 230 cam; 231 first guide rail; 232 second guide rail; 233 third guide rail; 234 groove; 240 motor; 250 pull rod; 260 fixed cover; 261 recess; 262 second guide port; 270 ball; 300 bracket; 400 controller; 500 angle sensor; 600 press-fitting handle; 610 retaining ring groove. DETAILED DESCRIPTION

[0040] The words "first, second, third, etc." or module A, module B, module C and other similar terms in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of the objects. It is understandable that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0041] In the following description, the numbers representing the steps, such as S110, S120, etc., do not necessarily mean that the steps must be executed in this manner. If permitted, the order of the previous and next steps can be interchanged, or they can be executed simultaneously.

[0042] The term "comprising" as used in the description and claims should not be interpreted as being limited to what is listed thereafter; it does not exclude other elements or steps. Therefore, it should be interpreted as specifying the presence of the features, integers, steps or components mentioned, but does not exclude the presence or addition of one or more other features, integers, steps or components and groups thereof. Therefore, the expression "a device comprising means A and B" should not be limited to a device consisting of components A and B only.

[0043] References to "one embodiment" or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places in this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the particular features, structures, or characteristics can be combined in any appropriate manner, as would be apparent to one of ordinary skill in the art from this disclosure.

[0044] First, with reference to the accompanying drawings, the specific structure of the valve core 10 in the embodiment of the present application is described in detail.

[0045] Figure 1 It is a schematic diagram of a three-dimensional structure of a valve core 10; Figure 2 for Figure 1 Schematic diagram of the exploded view of the valve core 10. Figure 1 , Figure 2 A valve core 10 in the form of a single plug 12 is shown. Figure 1 , Figure 2 As shown, in one embodiment, the valve core 10 includes a valve core shaft 11, and a plug 12, a spring 13, an open retaining ring 14, a gasket 15 and a retaining plate 16 arranged on the valve core shaft 11. Among them, the retaining plate 16 is fixedly arranged on the valve core shaft 11, and is located near one end of the valve core shaft 11. The plug 12, the gasket 15 and the spring 13 are sleeved on the valve core shaft 11, and the distances from them to the retaining plate 16 from near to far are respectively the spring 13, the gasket 15, and the plug 12. The retaining ring 14 is provided with a press-fit port 14a, and the size of the press-fit port 14a is smaller than the diameter of the valve core shaft 11. The retaining ring 14 can be fixed on the valve core shaft 11, and the plug 12 and the spring 13 are fixed between the retaining ring 14 and the retaining plate 16. Specifically, a notch 11 a is provided on the valve core shaft 11 , and the notch 11 a is an annular depression extending along the circumference of the valve core shaft 11 . The opening retaining ring 14 can be installed in the notch 11 a , and the notch 11 a prevents the opening retaining ring 14 from moving along the valve core shaft 11 .

[0046] Figure 3 is a schematic diagram of a three-dimensional structure of another valve core 10; Figure 4 for Figure 3 Schematic diagram of the exploded view of the valve core 10. Figure 3 , Figure 4 A valve core 10 in the form of a double plug 12 is shown. Figure 3 , Figure 4As shown, in another embodiment, the valve core 10 includes: a valve core shaft 11, and a plug 12, a spring 13, an open retaining ring 14 and a gasket 15 sleeved on the valve core shaft 11. Among them, there are two plugs 12, open retaining rings 14 and gaskets 15, which are symmetrically arranged on both sides of the spring 13, and the specific order is open retaining ring 14, plug 12, gasket 15, spring 13, gasket 15, plug 12, open retaining ring 14. The way the open retaining ring 14 is fixed on the valve core shaft 11 is the same as Figure 1 , Figure 2 The same as shown in , will not be repeated here.

[0047] The specific structure of the press-fitting device 20 in the embodiment of the present application is described in detail below in conjunction with the accompanying drawings.

[0048] Figure 5 The three-dimensional structural schematic diagram of the press-fitting device 20 in the embodiment of the present application is shown by taking the assembly of the valve core 10 in the form of a double plug 12 as an example to demonstrate the press-fitting device 20 in the embodiment of the present application; Figure 6 for Figure 5 A schematic diagram of the front structure of the medium-pressure device 20; Figure 7 for Figure 5 A schematic diagram of the left side structure of the medium pressure equipment 20; Figure 8 for Figure 5 A schematic diagram of the top structure of the medium-pressure installation equipment 20; Fig. 9 for Figure 5 A partial cross-sectional schematic diagram of the medium pressure installation equipment 20;

[0049] Fig.10 for Figure 5 An exploded schematic diagram of the medium pressure equipment 20; Fig.11 for Figure 5 A schematic structural diagram of a medium pressure handle 600.

[0050] like Figure 5-Figure 10 As shown, the press-fitting device 20 in the embodiment of the present application includes a fixed seat 100 and a pressing mechanism 200. The fixed seat 100 is used to support the valve core 10, and the pressing mechanism 200 is arranged on the fixed seat 100. The pressing mechanism 200 has a pressure head 210, which moves along the axis of the valve core shaft 11. After the pressure head 210 moves and abuts against the plug 12, the spring 13 is compressed. Therefore, when the worker assembles the valve core 10, the valve core 10 can be supported by the fixed seat 100, and then the pressing mechanism 200 drives the pressure head 210 to press the plug 12, so that the notch 11a on the valve core shaft 11 is exposed, so as to facilitate the installation of the open retaining ring 14 on the valve core shaft 11. Therefore, the worker no longer needs to press the plug 12 manually, thereby improving the work efficiency, reducing the labor intensity of the workers, and facilitating the workers to assemble the valve core 10.

[0051] like Figure 5 As shown, a support groove 110 is provided on the fixing seat 100, and the notch 11a of the support groove 110 faces upward, and the horizontal cross section of the support groove 110 is funnel-shaped, and the larger end of the support groove 110 is connected to the front surface of the fixing seat 100, so that the valve core 10 enters the support groove 110. The size of the smaller end of the support groove 110 is adapted to the diameter of the valve core shaft 11, so that the valve core shaft 11 remains in a vertical state, so that the support groove 110 provides support for the valve core 10.

[0052] like Figure 5 , Figure 6 As shown, the pressure head 210 includes an abutment head 211, which is arranged around the edge of the plug 12, and a first accommodating chamber 212 is formed in the abutment head 211. An installation port 213 is provided on the abutment head 211, and the installation port 213 is connected to the first accommodating chamber 212. By providing the installation port 213 on the abutment head 211, a worker can install the open retaining ring 14 on the valve core shaft 11 through the installation port 213. Therefore, it is convenient for workers to install the open retaining ring 14, thereby improving work efficiency.

[0053] like Fig. 9 As shown, the pressure head 210 further includes a second accommodating chamber 214, which is arranged along the axial direction of the valve core shaft 11, and one end of the second accommodating chamber 214 is connected to the first accommodating chamber 212. By providing the second accommodating chamber 214, when the abutting joint 211 presses the plug 12, the valve core shaft 11 can pass through the first accommodating chamber 212 and enter the second accommodating chamber 214, so as to prevent the valve core shaft 11 from causing obstruction when the abutting joint 211 presses the plug 12.

[0054] In some other embodiments, the abutment 211 may also be C-shaped, extending forward from the end of the pressure head 210, so that the pressure head 210 is L-shaped. Thus, when the abutment 211 presses the plug 12, the valve core shaft 11 will not hinder the movement of the pressure head 210.

[0055] like Fig. 9 , Fig.10As shown, the pressing mechanism 200 includes a guide tube 220, a cam 230, a motor 240 and a pull rod 250. Among them, the pressure head 210 is arranged in the guide tube 220 and can move along the guide tube in the guide tube 220. The guide tube 220 is arranged along the axial direction of the valve core shaft 11, and a first guide port 221 is arranged on the guide tube 220 along the guide tube 220. The axis of the cam 230 is parallel to the axis of the valve core shaft 11, and a groove-shaped first guide rail 231 is arranged on the outer peripheral surface of the cam 230, and the first guide rail 231 is inclined along the outer peripheral surface of the cam 230. The motor 240 is connected to the cam 230 in transmission connection, and can drive the cam 230 to rotate around the axis of the cam 230. The pull rod 250 is connected to the pressure head 210, and the pull rod 250 is arranged in the first guide port 221, and the end of the pull rod 250 extends into the first guide rail 231.

[0056] Since the end of the pull rod 250 extends into the first guide rail 231, when the motor 240 drives the cam 230 to rotate, the pull rod 250 can move along the first guide rail 231. Since the first guide rail 231 is inclined along the outer peripheral surface of the cam 230, the pull rod 250 can move along the first guide port 221, thereby driving the pressure head 210 to move along the axial direction of the valve core shaft 11, pressing the plug 12 on the valve core shaft 11, so as to facilitate the workers to install the opening retaining ring 14.

[0057] Furthermore, two first guide rails 231 may be provided, and the two first guide rails 231 are inclined toward the same rotation direction, that is, the first guide rails 231 spirally extend upward on the outer circumference of the cam 230 along the same rotation direction. A groove-shaped second guide rail 232 and a third guide rail 233 are also provided on the outer circumference of the cam 230. The second guide rail 232 and the third guide rail 233 are respectively located on two planes, and the two planes are arranged in parallel and perpendicular to the axis of the cam 230. Among them, the two ends of one first guide rail 231 are respectively connected to one end of the second guide rail 232 and the third guide rail 233, and the two ends of the other first guide rail 231 are respectively connected to the other end of the second guide rail 232 and the third guide rail 233. Thus, the second guide rail 232 and the third guide rail 233 are connected through the two first guide rails 231 to form a closed track. Since the second guide rail 232 and the third guide rail 233 are respectively on two planes, the pull rod 250 will reciprocate in the axial direction of the valve core shaft 11 when moving along the first guide rail 231, the second guide rail 232, and the third guide rail 233. Therefore, the motor 240 only needs to rotate in one direction to drive the abutment head 211 to press and release the plug 12 on the valve core shaft 11. Therefore, the control of the pressing mechanism 200 can be simplified.

[0058] like Figure 5-Figure 10As shown, the support groove 110, the pressure head 210, the pull rod 250 and the guide tube 220 are two symmetrically arranged on the left and right sides, the two first guide rails 231 are symmetrically arranged with the axis of the cam 230 as the center, and the second guide rail 232 and the third guide rail 233 have the same length. Therefore, when the motor 240 drives the cam 230 to rotate, the two pull rods 250 move in the first guide rail 231, the second guide rail 232 and the third guide rail 233 at the same time. When the end of the pull rod 250 on one side is located in the second guide rail 232, the pull rod 250 on the other side is located in the third guide rail 233. When the end of the pull rod 250 on one side is located in one first guide rail 231 and moves upward, the end of the pull rod 250 on the other side is located in the other first guide rail 231 and moves downward. That is, when one pressure head 210 is located at the lowest position, the other pressure head 210 is located at the highest position. When one pressure head 210 moves upward, the other pressure head 210 moves downward. Thus, the two pressing heads 210 can press the plug 12 alternately, thereby improving the installation rhythm and the production efficiency.

[0059] like Figure 5-Figure 10 As shown, the press-fitting device 20 in the embodiment of the present application further includes a bracket 300 , which is disposed on the fixing seat 100 , and the pressing mechanism 200 is fixedly disposed on the bracket 300 , and the bracket 300 provides support for the pressing mechanism 200 .

[0060] like Figure 5-Figure 10 As shown, the press-fitting device 20 in the embodiment of the present application further includes a fixed cover 260 and a ball 270. The fixed cover 260 may be fixed on the bracket 300, and the cam 230 is arranged in the fixed cover 260. The fixed cover 260 is provided with a second guide opening 262, which extends along the axial direction of the valve core shaft 11, and the end of the pull rod 250 extends into the first guide rail 231 through the opening. There are a plurality of ball 270, which are located between the end of the cam 230 and the fixed cover 260. Therefore, by arranging the ball 270 between the cam 230 and the fixed cover 260, the sliding friction between the cam 230 and the fixed cover 260 can be converted into rolling friction, thereby reducing the friction between the cam 230 and the fixed cover 260, and reducing the noise of the pressing mechanism 200 during operation.

[0061] like Fig. 9As shown, a groove 234 is provided at the end of the cam 230, and the groove 234 is annular and is coaxially arranged with the cam 230. A plurality of recesses 261 are provided at positions corresponding to the recesses 234 in the fixed cover 260, and the specific plurality of recesses 261 can be evenly arranged along the recesses 234. A plurality of balls 270 are provided in the plurality of recesses 261 in a one-to-one correspondence and move along the recesses 234. Thus, by providing the recesses 261, the position of the balls 270 in the recesses 261 can be prevented from moving, and by moving the balls 270 along the recesses 234, the position between the cam 230 and the balls 270 can be prevented from shifting, thereby improving the stability of the cam 230 when rotating.

[0062] In some other embodiments, the pressing mechanism 200 can also drive the pressing head 210 to move along the axial direction of the valve core shaft 11 by means of a cylinder, a hydraulic cylinder or a motor driving a ball screw, which is not limited to this.

[0063] like Fig. 9 , Fig.10 As shown, the press-fitting device 20 in the embodiment of the present application further includes a controller 400 and an angle sensor 500. The controller 400 may be a control device such as a control circuit board, a PLC, etc. The controller 400 is electrically connected to the motor 240. The angle sensor 500 is electrically connected to the controller 400 and is used to detect the angle of rotation of the drive shaft of the motor 240. Thus, the rotation angle of the drive shaft of the motor 240 can be detected by the angle sensor 500, and the controller 400 can determine the angle of the cam 230 based on the information detected by the angle sensor 500, and further determine the position of the abutment 211. Thus, when the press-fitting device 20 is used for assembly, the position of the abutment 211 can be accurately controlled.

[0064] like Figure 5-Figure 11 As shown, the open retaining ring 14 is provided with a press-fitting port 14a, and the size of the press-fitting port 14a is smaller than the diameter of the valve core shaft 11. Specifically, the size of the press-fitting port 14a is smaller than the size of the slot 11a. After the open retaining ring 14 abuts against the slot 11a, the press-fitting port 14a can be opened by pressing the open retaining ring 14, so that the open retaining ring 14 is engaged into the slot 11a. The press-fitting device 20 in the embodiment of the present application also includes a press-fitting handle 600, and the end of the press-fitting handle 600 is provided with a retaining ring groove 610, and the retaining ring groove 610 is adapted to the end of the open retaining ring 14 facing away from the press-fitting port 213. Thus, the open retaining ring 14 can be installed in the retaining ring groove 610 of the press-fitting handle 600, so that the press-fitting port 14a of the open retaining ring 14 faces outward. Thus, the worker can press-fit the open retaining ring 14 onto the valve core shaft 11 conveniently and labor-savingly. Thereby, the working efficiency is improved, the labor intensity of the workers is reduced, and it is convenient for the workers to assemble the valve core 10 .

[0065] Furthermore, the retaining ring groove 610 is magnetic, so that the open retaining ring 14 can be adsorbed to prevent the open retaining ring 14 from falling out of the retaining ring groove 610 when the open retaining ring 14 is installed using the press-fitting handle 600. This facilitates the operation of workers, improves work efficiency, and reduces the labor intensity of workers.

[0066] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present application is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present invention, all of which belong to the protection scope of the present invention.

Claims

1. An open retaining ring press-fitting device, characterized in that: Used for assembling a valve core, the valve core has a valve core shaft and a spring and a plug sleeved on the valve core shaft; including: A fixed seat, used for supporting the valve core; A pressing mechanism, the pressing mechanism is arranged on the fixing seat, the pressing mechanism has a pressing head, the pressing head moves along the axis of the valve core shaft; after the pressing head moves and abuts against the plug, the spring is compressed; a pressing handle, the end of the pressing handle is provided with a retaining ring groove; The pressure head comprises: An abutment head, the abutment head is arranged around the edge of the plug, and a first accommodating cavity is formed in the abutment head; An installation opening, the installation opening being arranged on the abutment head and communicating with the first accommodating cavity; A second accommodating chamber, wherein the second accommodating chamber is arranged along the axial direction of the valve core shaft, and one end of the second accommodating chamber is communicated with the first accommodating chamber; The pressing mechanism comprises: A guide tube, the pressure head is arranged in the guide tube, the guide tube is arranged along the axial direction of the valve core shaft, and a first guide port is arranged on the guide tube along the guide tube; A cam, wherein the axis of the cam is parallel to the axis of the valve core shaft, and a first guide rail in the shape of a groove is arranged on the outer peripheral surface of the cam, and the first guide rail is arranged obliquely along the outer peripheral surface of the cam; A motor, the motor being drivingly connected to the cam; A pull rod, the pull rod is arranged in the guide opening and connected to the pressure head, and an end of the pull rod extends into the first guide rail; Two first guide rails are provided, and the two first guide rails are inclined in the same rotation direction; a groove-shaped second guide rail and a third guide rail are also provided on the outer peripheral surface of the cam, and the second guide rail and the third guide rail are respectively located on two planes, and the two planes are parallel and perpendicular to the axis of the cam; wherein, the two ends of one first guide rail are respectively connected to one end of the second guide rail and the third guide rail, and the two ends of the other first guide rail are respectively connected to the other end of the second guide rail and the third guide rail.

2. The split retaining ring press-fitting device according to claim 1, characterized in that: Also includes: A fixed cover, the cam is arranged in the fixed cover, a second guide opening is arranged on the fixed cover, the second guide opening extends along the axial direction of the valve core shaft, and the end of the pull rod passes through the second guide opening and extends into the first guide rail; A plurality of balls are provided and are located between the end of the cam and the fixed cover.

3. The split retaining ring press-fitting device according to claim 2, characterized in that: A groove is arranged at the end of the cam, the groove is annular and is coaxially arranged with the cam; a plurality of recesses are arranged at positions corresponding to the groove in the fixed cover; wherein the ball is arranged in the recess and moves along the groove.

4. The split retaining ring press-fitting device according to claim 1, characterized in that: Also includes: A controller, the controller being electrically connected to the motor; An angle sensor is electrically connected to the controller and is used to detect the rotation angle of the drive shaft of the motor.

5. The split retaining ring press-fitting device according to any one of claims 1 to 4, characterized in that: The valve core also has an open retaining ring, on which a press-fitting port is arranged, and the size of the press-fitting port is smaller than the diameter of the valve core shaft; the retaining ring groove is adapted to an end of the open retaining ring facing away from the press-fitting port.

6. The split retaining ring press-fitting device according to claim 5, characterized in that: The retaining ring groove is magnetic.

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