Valve element, valve and manufacturing method of valve element

Abstract

The invention relates to the technical field of control elements, in particular to a valve element, a valve and a manufacturing method of the valve element, the valve element comprises a first movable piece, a second movable piece and a sealing piece, the first movable piece and the second movable piece are detachably connected, and a mounting part is arranged on the first movable piece and / or the second movable piece; the sealing piece is provided with a first end and a second end which are oppositely arranged, and a mounting hole penetrating through the first end and the second end is formed in the sealing piece; moreover, the mounting part is arranged in the mounting hole in a penetrating manner, and is in surface connection fit with the mounting hole, so that the sealing piece is hermetically connected with the mounting part, and the sealing piece is at least detachably matched with one of the first movable piece and the second movable piece; in conclusion, according to the valve element, after the sealing piece is abraded to a certain degree, the normal function of the valve can be restored in the mode that the sealing piece is independently replaced, and the maintenance cost of the valve is low.

Description

Technical Field

[0001] The present invention relates to the technical field of control elements, and in particular to a valve core, a valve and a method for manufacturing the valve core. Background Art

[0002] A valve is a component used to control the flow of a medium. In some valves, when the valve core moves to a specific position, the sealant of the valve core abuts against the valve body to block two specific channels on the valve body, preventing the medium from flowing between the two channels. Whenever the sealant abuts against the valve body, the sealant will be worn. After long-term and multiple uses of the valve, the sealant will be worn to failure, resulting in inaccurate or inability to control the flow of the medium. Furthermore, since the sealant is connected to the valve stem of the valve core through a rubber encapsulation process, after the sealant is worn to failure, it is impossible to replace the sealant alone, and the normal function of the valve needs to be restored by replacing the entire valve core, which makes the maintenance cost of the valve high. Summary of the invention

[0003] The purpose of the present invention is to provide a valve core, a valve and a method for manufacturing the valve core, so as to solve the technical problem that after the sealant of the valve core is worn to failure, the normal function of the valve can only be restored by replacing the entire valve core, resulting in high maintenance costs of the valve.

[0004] In order to achieve the above object, the present invention provides a valve core, comprising: a first moving member, a second moving member and a sealing member;

[0005] The first movable member and the second movable member are detachably connected, and a mounting portion is provided on the first movable member and / or the second movable member;

[0006] The seal has a first end and a second end arranged opposite to each other, and a mounting hole penetrating the first end and the second end is provided in the seal; and the mounting portion is passed through the mounting hole and forms a surface connection with the mounting hole, so that the seal is sealed and connected to the mounting portion, and the seal forms a detachable fit with at least one of the first movable member and the second movable member.

[0007] Optionally, the first movable member is provided with a first stop shoulder, and the first stop shoulder is located on a side of the first end away from the second end, so as to limit the movement of the sealing member in a direction from the second end to the first end;

[0008] And / or, the second movable member is provided with a second stop shoulder, and the second stop shoulder is located on a side of the second end away from the first end, so as to limit the movement of the sealing member in a direction from the first end to the second end.

[0009] Optionally, when the first movable member is provided with a first stop shoulder and the second movable member is provided with a second stop shoulder, the first stop shoulder is arranged around the mounting hole, the first stop shoulder is connected to the first end, so that the first stop shoulder and the seal form a sealing fit, and the second stop shoulder is arranged around the mounting hole, the second stop shoulder is connected to the second end, so that the second stop shoulder and the seal form a sealing fit.

[0010] Optionally, the first end of the sealing member is provided with a first stop groove, the first stop groove is arranged on the end surface of the first end, the notch of the first stop groove is oriented from the second end to the first end, and the first movable member is provided with a first stop block matched with the first stop groove, and the first stop block extends into the first stop groove;

[0011] And / or, the second end of the seal is provided with a second stop groove, the second stop groove is arranged on the end surface of the second end, the groove opening of the second stop groove is oriented from the first end to the second end, and the second movable member is provided with a second stop block matching with the second stop groove, and the second stop block extends into the second stop groove.

[0012] Optionally, when a first stop groove is provided at the first end of the sealing member, and a first stop block is provided on the first movable member, the first stop groove is provided around the mounting hole and forms a sealing fit with the first stop block;

[0013] And / or, when a second stop groove is provided at the second end of the sealing member and a second stop block is provided on the second movable member, the second stop groove is arranged around the mounting hole and forms a sealing fit with the second stop block.

[0014] Optionally, in the case where a first retaining groove is provided at the first end of the sealing member, the first retaining groove is communicated with the mounting hole and is coaxial with the mounting hole;

[0015] And / or, in the case where a second retaining groove is provided at the second end of the sealing member, the second retaining groove is communicated with the mounting hole and is coaxial with the mounting hole.

[0016] Optionally, when the first end of the seal is provided with a first stop groove, the first movable member is provided with a first stop block, the second end of the seal is provided with a second stop groove, and the second movable member is provided with a second stop block, the first stop block is connected to the bottom of the first stop groove, so that the first stop shoulder is connected to the first end of the seal to form a sealing fit, and the second stop block is connected to the bottom of the second stop groove, so that the second stop shoulder is connected to the second end of the seal to form a sealing fit;

[0017] Or, when the second movable member is provided with a second stop shoulder, the first movable member is provided with a first stop block, and the sealing member is provided with a first stop groove, the first stop block is connected to the bottom of the first stop groove, so that the first stop shoulder is connected to the first end of the sealing member to form a sealing fit;

[0018] Alternatively, when the first movable member is provided with a first stop shoulder, the second movable member is provided with a second stop block, and the sealing member is provided with a second stop groove, the second stop block is connected to the bottom of the second stop groove, so that the second stop shoulder is connected to the second end of the sealing member to form a sealing fit.

[0019] Optionally, one of the first movable member and the second movable member is provided with a connecting portion, and the other of the first movable member and the second movable member is provided with a connecting hole, and the connecting portion is detachably connected to the connecting hole, so that the first movable member and the second movable member are detachably connected.

[0020] Optionally, the connecting hole is provided with a first hole segment and a second hole segment in sequence along its axial direction, and the end of the second hole segment away from the first hole segment is formed with an orifice of the connecting hole, and the outer wall of the connecting portion is provided with a first connecting segment and a second connecting segment in sequence along the axial direction of the connecting hole, the first connecting segment is detachably connected to the first hole segment, so that the first movable member and the second movable member are detachably connected, and the outer wall of the second connecting segment is cooperatively connected to the hole wall of the second hole segment to improve the concentricity of the first movable member and the second movable member.

[0021] Optionally, a first guide portion is provided between the first connecting section and the second connecting section, and an outer diameter of the first guide portion gradually decreases along a direction from the second connecting section to the first connecting section;

[0022] And / or, a second guide portion is provided at the opening of the connecting hole, and an inner diameter of the second guide portion gradually decreases along a direction from outside the connecting hole to inside the connecting hole.

[0023] Optionally, the mounting portion and the connecting portion are jointly provided on one of the first movable member and the second movable member.

[0024] Optionally, the connecting portion is arranged on the outer peripheral side of the mounting portion; or, the connecting portion and the mounting portion are arranged coaxially.

[0025] The present application also relates to a valve, comprising a valve body and the aforementioned valve core, wherein the valve core is installed in the valve body.

[0026] Optionally, the valve body is provided with a communicating accommodation channel, a first flow channel, and a second flow channel, the accommodation channel has a first position and a second position, the valve core is arranged to reciprocate between the first position and the second position, and a sealing area is provided at the junction of the first flow channel and the accommodation channel, the interior of the first flow channel, or the interior of the accommodation channel;

[0027] When the valve core moves to the first position, the sealing member forms a sealing cooperation with the sealing area to block the communication between the first flow channel and the second flow channel;

[0028] When the valve core moves to the second position, the sealing member is separated from the sealing area, so that the first flow channel is connected to the second flow channel.

[0029] The present application also relates to a method for manufacturing the aforementioned valve core, comprising the following steps:

[0030] Selecting the sealing member, the first movable member and the second movable member;

[0031] Insert the mounting portion into the sealing member so that the sealing member and the mounting portion form a sealing fit;

[0032] The first movable member and the second movable member are connected so that the first movable member, the second movable member and the sealing member form a valve core.

[0033] Compared with the prior art, the valve core, valve and valve core manufacturing method of the embodiment of the present invention have the following beneficial effects:

[0034] (1) In the valve core of the present invention, the mounting portion is inserted into the mounting hole so that the sealing member is mounted on the mounting portion and is sealed with the sealing member, so that the mounting hole is tightly sleeved on the mounting portion, thereby limiting the random movement of the sealing member on the mounting portion, and forming a first seal between the sealing member and the mounting portion to prevent the medium from flowing between the mounting portion and the mounting hole;

[0035] In addition, the first movable member and the second movable member are detachably connected, and the sealing member is detachably matched with at least one of the first movable member and the second movable member, so that the first movable member, the second movable member and the sealing member are all independently detachable components. The staff can first install the sealing member on the mounting portion, and then connect the first movable member to the second movable member to form the valve core. The valve core can be disassembled by disassembling the first movable member and the second movable member, and then removing the sealing member installed on the mounting portion. The sealing member in the valve core can be replaced by disassembling the first movable member and the second movable member, and then removing the old sealing member installed on the mounting portion, and then installing a new sealing member on the mounting portion, and finally connecting the first movable member to the second movable member. Therefore, after the sealing member is worn to a certain extent, the normal function of the valve can be restored by replacing the sealing member alone, so that the maintenance cost of the valve equipped with the valve core of the present application is low.

[0036] (2) The valve core may also be provided with a stop shoulder on the moving part, and the stop shoulder and the end of the sealing part form a second seal. A stop block may also be provided on the moving part, and a stop groove may be provided on the sealing part, and the stop block and the stop groove form a third seal, so that multiple seals are formed between the sealing part and the moving part to prevent the medium from flowing between the moving part and the sealing part.

[0037] (3) After the seal of the valve equipped with the above-mentioned valve core of the present invention is worn to a certain extent, the valve core can be removed from the valve body first, and then the seal in the valve core can be replaced separately, and then the valve core can be installed in the valve body to restore the normal function of the valve. In addition, the valve can also be used as an independent valve, and can also be installed in a large solenoid valve as a small solenoid valve.

[0038] (4) The method for manufacturing the aforementioned valve core of the present invention is to select the first movable member, the second movable member and the sealing member in sequence, insert the mounting portion into the mounting hole of the sealing member, and then connect the first movable member and the second movable member to complete the manufacturing of the valve core. The manufacturing is convenient, fast and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic structural diagram of the valve core in the first embodiment of the present invention.

[0040] Figure 2 It is an exploded view of the valve core in the first embodiment of the present invention.

[0041] Figure 3 It is a front view of the valve core in the first embodiment of the present invention.

[0042] Figure 4 for Figure 3 Schematic diagram of the local structure of the AA section.

[0043] Figure 5 It is a partial cross-sectional view of the valve core in the second embodiment of the present invention.

[0044] Figure 6 It is a partial cross-sectional view of the valve core in the third embodiment of the present invention.

[0045] Figure 7 It is a schematic diagram of the structure of a valve in one embodiment of the present invention.

[0046] Figure 8 This is a front view of a valve in one embodiment of the present invention.

[0047] Fig. 9 for Figure 8 Cross-sectional view of BB.

[0048] Fig.10 The present invention is a flow chart of the steps of the valve core manufacturing method.

[0049] 1. Valve core; 11. First movable member; 111. First stop shoulder; 112. First stop block; 12. Second movable member; 121. Second stop shoulder; 122. Second stop block; 13. Mounting portion; 14. Sealing member; 141. First end; 142. Second end; 143. Mounting hole; 144. First stop groove; 145. Second stop groove; 15. Connecting portion; 151. First connecting section; 152. Second connecting section; 16. Connecting hole; 161. First hole section; 162. Second hole section; 17. First guide portion; 18. Second guide portion; 2. Valve body; 21. Accommodating channel; 22. First flow channel; 23. Second flow channel; 24. Sealing area. DETAILED DESCRIPTION

[0050] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0051] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] Embodiment 1

[0054] Reference Figures 1 to 4 As shown, a valve core 1 includes: a first movable member 11, a second movable member 12 and a sealing member 14; the first movable member 11 and the second movable member 12 are detachably connected, and a mounting portion 13 is provided on the first movable member 11; the sealing member 14 has a first end 141 and a second end 142 arranged opposite to each other, and a mounting hole 143 passing through the first end 141 and the second end 142 is provided in the sealing member 14; and the mounting portion 13 is penetrated through the mounting hole 143, and forms a surface connection with the mounting hole 143, so that the sealing member 14 is sealed and connected to the mounting portion 13, and the sealing member 14 forms a detachable fit with the first movable member 11.

[0055] In the above technical solution, the first movable member 11 can be used to connect to the driver on the valve body 2. The driver applies force to the first movable member 11 to move the valve core 1 in the valve body 2. The driver can be a magnetic device or a push-pull rod or other device. The second movable member 12 can be used to connect to the manual button on the valve body 2. The staff can press and pull the manual button to move the valve core 1 in the valve body 2. Specifically, one end of the first movable member 11 is used to connect to the driver on the valve body 2, and the other end of the first movable member 11 is connected to one end of the second movable member 12. The other end of the second movable member 12 is used to connect to the manual button on the valve body 2. It can also be the other way around. The second movable member 12 is used to connect to the driver on the valve body 2, and the first movable member 11 can be used to connect to the manual button on the valve body 2. This is not limited, and other structures of the first movable member 11, the second movable member 12 and the sealing member 14 are not limited. It is only necessary to ensure that the first movable member 11, the second movable member 12 and the sealing member 14 are independent components, which can be detachably connected to each other, and have a sealing structure.

[0056] In addition, the mounting portion 13 is penetrated through the mounting hole 143 so that the sealing member 14 is mounted on the mounting portion 13 and is sealed with the sealing member 14. By virtue of the setting that the size of the outer wall of the mounting portion 13 is larger than the size of the mounting hole 143 and the elasticity of the sealing member 14, the mounting hole 143 can be tightly sleeved on the mounting portion 13, thereby limiting the random movement of the sealing member 14 on the mounting portion 13, and forming a first seal between the sealing member 14 and the mounting portion 13, thereby preventing the medium from flowing between the mounting portion 13 and the mounting hole 143.

[0057] In addition, the first movable member 11 and the second movable member 12 are detachably connected, and the sealing member 14 is detachably matched with at least one of the first movable member 11 and the second movable member 12, so that the first movable member 11, the second movable member 12 and the sealing member 14 are all independent detachable parts. Different from the existing rubber encapsulation process, the staff can first install the sealing member 14 on the mounting portion 13, and then connect the first movable member 11 to the second movable member 12 to form the valve core 1, and can disassemble the first movable member 11 and the second movable member 12, and then remove the sealing member 14 installed on the mounting portion 13. The valve core 1 can be disassembled in this way, by disassembling the first movable member 11 and the second movable member 12, then removing the old seal 14 installed on the mounting portion 13, then installing the new seal 14 on the mounting portion 13, and finally connecting the first movable member 11 to the second movable member 12 to replace the seal 14 in the valve core 1. Therefore, after the seal 14 is worn to a certain extent, the normal function of the valve can be restored by replacing the seal 14 in the valve core 1 alone, while the use of the rubber encapsulation process requires the replacement of the entire valve core 1, so that the maintenance cost of the valve equipped with the valve core 1 of the present application is low.

[0058] As an example of this embodiment, refer to Figures 1 to 6 As shown, the first movable member 11 is provided with a first stop shoulder 111, and the first stop shoulder 111 is located on a side of the first end 141 away from the second end 142 to limit the movement of the sealing member 14 in the direction from the second end 142 to the first end 141, and the second movable member 12 is provided with a second stop shoulder 121, and the second stop shoulder 121 is located on a side of the second end 142 away from the first end 141 to limit the movement of the sealing member 14 in the direction from the first end 141 to the second end 142; the valve core 1 of this embodiment is not limited to the above-mentioned example scheme, and in some valve core 1 structures, only the first movable member 11 may be provided with a stop shoulder, or only the second movable member 12 may be provided with a stop shoulder;

[0059] Among them, when the seal 14 is subjected to a large thrust or pull, causing the seal 14 to move to a certain distance in the direction from the second end 142 to the first end 141 or from the first end 141 to the second end 142, the shoulder abuts against the end face of one end of the seal 14 to prevent the seal 14 from further moving, thereby ensuring that the seal 14 cannot move beyond a certain range during operation, thereby ensuring that the valve core 1 can work effectively.

[0060] As an example of this embodiment, refer to Figures 1 to 6As shown, when the first movable member 11 is provided with a first stop shoulder 111, and the second movable member 12 is provided with a second stop shoulder 121, the first stop shoulder 111 is arranged around the mounting hole 143, the first stop shoulder 111 is connected to the first end 141, so that the first stop shoulder 111 and the sealing member 14 form a sealing fit, and the second stop shoulder 121 is arranged around the mounting hole 143, the second stop shoulder 121 is connected to the second end 142, so that the second stop shoulder 121 and the sealing member 14 form a sealing fit;

[0061] Among them, the elasticity of the seal 14 and the setting that the distance between the first shoulder 111 and the second shoulder 121 is smaller than the distance from the first end 141 to the second end 142 can prevent the seal 14 from moving in the direction from the first end 141 to the second end 142 and the direction from the second end 142 to the first end 141, so as to improve the stability of the seal 14 on the mounting portion 13, thereby improving the accuracy and effectiveness of the action of the valve core 1, and also can form a second seal between the end faces of the first shoulder 111 and the first end 141, and between the second shoulder 121 and the second end 142, so as to enhance the sealing between the seal 14 and the first movable member 11 and the second movable member 12.

[0062] As an example of this embodiment, refer to Figures 1 to 6 As shown, the first end 141 of the sealing member 14 is provided with a first retaining groove 144, the first retaining groove 144 is provided on the end surface of the first end 141, the notch of the first retaining groove 144 is oriented from the second end 142 to the first end 141, and the first movable member 11 is provided with a first retaining block 112 matched with the first retaining groove 144, the first retaining block 112 extends into the first retaining groove 144, the second end 142 of the sealing member 14 is provided with a second retaining groove 145, the second retaining groove 145 is provided at the end surface of the second end 142 end surface, the notch of the second retaining groove 145 is oriented from the first end 141 to the second end 142, and the second movable member 12 is provided with a second retaining block 122 matched with the second retaining groove 145, and the second retaining block 122 extends into the second retaining groove 145; the valve core 1 of this embodiment is not limited to the above-mentioned example scheme, and in some valve core 1 structures, only the first end 141 of the sealing member 14 may be provided with a retaining groove, and the first movable member 11 may be provided with a retaining block, or only the second end 142 of the sealing member 14 may be provided with a retaining groove, and the second movable member 12 may be provided with a retaining block;

[0063] Among them, when installing the seal 14, the staff can extend the stop block into the corresponding stop groove to conveniently realize the alignment installation operation of the seal 14 to improve the accuracy and efficiency of installing the seal 14, and the stop block can also abut against the bottom of the stop groove when the seal 14 is subjected to a large thrust or pull force, causing the seal 14 to move a certain distance in the direction from the second end 142 to the first end 141 or from the first end 141 to the second end 142, to prevent the seal 14 from further movement, thereby ensuring that the seal 14 cannot move beyond a certain range during operation, thereby ensuring that the valve core 1 can work effectively, and having a similar effect to the aforementioned stop shoulder.

[0064] As an example of this embodiment, refer to Figures 1 to 6 As shown, in the case where the first end 141 of the sealing member 14 is provided with a first retaining groove 144, and the first movable member 11 is provided with a first retaining block 112, the first retaining groove 144 is provided around the mounting hole 143 and forms a sealing match with the first retaining block 112, and in the case where the second end 142 of the sealing member 14 is provided with a second retaining groove 145, and the second movable member 12 is provided with a second retaining block 122, the second retaining groove 145 is provided around the mounting hole 143 and forms a sealing match with the second retaining block 122; the valve core 1 of this embodiment is not limited to the above-mentioned example scheme, and in some valve core 1 structures, only the first retaining groove 144 may be provided around the mounting hole 143 and forms a sealing match with the first retaining block 112, or only the second retaining groove 145 may be provided around the mounting hole 143 and forms a sealing match with the second retaining block 122;

[0065] Among them, the second sealing fit between the stop block and the stop groove can be achieved by the stop block abutting against the stop groove to enhance the sealing between the seal 14 and the first movable member 11 and the second movable member 12. Specifically, the stop block can achieve sealing fit by abutting against the groove wall of the stop groove, the stop block can also achieve sealing fit by abutting against the groove bottom of the stop groove, and the stop block can also achieve sealing fit by abutting against the groove wall and groove bottom of the stop groove.

[0066] As an example of this embodiment, refer to Figures 1 to 6As shown, in the case where the first end 141 of the sealing member 14 is provided with a first retaining groove 144, the first retaining groove 144 is communicated with the mounting hole 143 and is coaxial with the mounting hole 143, and in the case where the second end 142 of the sealing member 14 is provided with a second retaining groove 145, the second retaining groove 145 is communicated with the mounting hole 143 and is coaxial with the mounting hole 143; the valve core 1 of this embodiment is not limited to the above-mentioned example scheme, and in some valve core 1 structures, only the first retaining groove 144 may be communicated with the mounting hole 143 and is coaxial with the mounting hole 143, or only the second retaining groove 145 may be communicated with the mounting hole 143 and is coaxial with the mounting hole 143;

[0067] Among them, the retaining groove is connected to the mounting hole 143 and is coaxial with the mounting hole 143, so that after the mounting hole 143 is processed, the retaining groove can be conveniently processed to simplify the production and processing technology of the seal 14, and it is convenient for the staff to extend the retaining block into the retaining groove accordingly, so as to improve the accuracy and efficiency of the installation of the seal 14 on the mounting part 13.

[0068] As an example of this embodiment, refer to Figures 1 to 6 As shown, in the case where the first end 141 of the sealing member 14 is provided with a first retaining groove 144, the first movable member 11 is provided with a first retaining block 112, the second end 142 of the sealing member 14 is provided with a second retaining groove 145, and the second movable member 12 is provided with a second retaining block 122, the first retaining block 112 is connected to the bottom of the first retaining groove 144, so that the first retaining shoulder 111 is connected to the first end 141 of the sealing member 14 to form a sealing fit, and the second retaining block 122 is connected to the bottom of the second retaining groove 145, so that the second retaining shoulder 121 is connected to the second end 142 of the sealing member 14 to form a sealing fit; the valve core 1 of this embodiment is not limited to the above-mentioned example scheme, and in some valve core 1 structures, it can be In the case where the second movable member 12 is provided with a second stop shoulder 121, the first movable member 11 is provided with a first stop block 112, and the sealing member 14 is provided with a first stop groove 144, the first stop block 112 is connected to the groove bottom of the first stop groove 144, so that the first stop shoulder 111 is connected to the first end 141 of the sealing member 14 to form a sealing fit. Alternatively, in the case where the first movable member 11 is provided with a first stop shoulder 111, the second movable member 12 is provided with a second stop block 122, and the sealing member 14 is provided with a second stop groove 145, the second stop block 122 is connected to the groove bottom of the second stop groove 145, so that the second stop shoulder 121 is connected to the second end 142 of the sealing member 14 to form a sealing fit.

[0069] Among them, a third sealing cooperation is achieved between the groove bottom of the retaining groove and the stopper to further improve the sealing performance between the seal 14 and the first movable member 11 and the second movable member 12. When the first stopper 112 and the second stopper 122 are provided at the same time, the first stopper 112 and the second stopper 122 respectively abut against the groove bottom of the first retaining groove 144 and the groove bottom of the second retaining groove 145 in opposite directions, thereby achieving the function of fixing the position of the seal 14 and realizing the third sealing cooperation at the groove bottoms of the two retaining grooves. At this time, the distance between the first stopper 112 and the second stopper 122 is smaller than the distance between the groove bottoms of the first retaining groove 144 and the second retaining groove 145. When only one stopper is provided, the end face of one end of the seal 14 is limited by the stop shoulder, and the end face of the other end is provided with a stop groove, the groove bottom of the stop groove abuts against the stopper, and the third sealing cooperation is realized at the groove bottom of the stop groove. At this time, the distance between the stopper and the stop shoulder at the other end is smaller than the distance between the stop groove and the end face of the other end.

[0070] As an example of this embodiment, refer to Figures 1 to 6 As shown, the first movable member 11 is provided with a connecting portion 15, and the second movable member 12 is provided with a connecting hole 16, and the connecting portion 15 is detachably connected to the connecting hole 16, so that the first movable member 11 and the second movable member 12 are detachably connected; the valve core 1 of this embodiment is not limited to the above-mentioned example scheme, and in some valve core 1 structures, the second movable member 12 can also be provided with a connecting portion 15, and the first movable member 11 can be provided with a connecting hole 16; wherein, the first movable member 11 and the second movable member 12 are detachably connected, and after the first movable member 11 and the second movable member 12 are detached, the sealing member 14 can be removed from the mounting portion 13.

[0071] As an example of this embodiment, refer to Figures 1 to 6As shown, the connecting hole 16 is provided with a first hole section 161 and a second hole section 162 in sequence along its axial direction, and the end of the second hole section 162 away from the first hole section 161 is formed with the orifice of the connecting hole 16, and the outer wall of the connecting portion 15 is provided with a first connecting section 151 and a second connecting section 152 in sequence along the axial direction of the connecting hole 16, the first connecting section 151 is detachably connected to the first hole section 161, so that the first movable member 11 and the second movable member 12 are detachably connected, and the outer wall of the second connecting section 152 is cooperatively connected to the hole wall of the second hole section 162 to improve the concentricity of the first movable member 11 and the second movable member 12; wherein, the first connecting section 151 and the first hole section 1 61 is used to realize a detachable connection between the first movable member 11 and the second movable member 12. After the first movable member 11 and the second movable member 12 are detached, the sealing member 14 can be removed from the mounting portion 13. The first connecting section 151 and the first hole section 161 can be detachably connected by connection methods including threaded connection, snap connection, pin connection, wedge connection, magnetic connection, etc. As an example of this embodiment, the outer wall of the second connecting section 152 and the hole wall of the second hole section 162 are matched to ensure the concentricity of the first movable member 11 and the second movable member 12 after each disassembly and assembly, thereby ensuring the accuracy of the movement of the valve core 1 after each disassembly and assembly. The outer wall of the second connecting section 152 and the hole wall of the second hole section 162 can be a clearance fit or a transition fit.

[0072] As an example of this embodiment, refer to Figures 1 to 6 As shown, a first guide portion 17 is provided between the first connecting section 151 and the second connecting section 152, and the outer diameter of the first guide portion 17 gradually decreases along the direction from the second connecting section 152 to the first connecting section 151, and a second guide portion 18 is provided at the opening of the connecting hole 16, and the inner diameter of the second guide portion 18 gradually decreases along the direction from the outside of the connecting hole 16 to the inside of the connecting hole 16; the valve core 1 of this embodiment is not limited to the above-mentioned example scheme, and in some valve core 1 structures, only the first guide portion 17 may be provided between the first connecting section 151 and the second connecting section 152, or only the opening of the connecting hole 16 may be provided with the second guide portion 18;

[0073] Among them, when the connecting part 15 extends into the connecting hole 16, the first connecting section 151 first passes through the second hole section 162, and then extends into the first hole section 161 for connection. After the first connecting section 151 passes through the second hole section 162, the second connecting part 15 extends into the connecting hole 16 again, and then extends into the second hole section 162 for connection. When the second connecting part 15 extends into the connecting hole 16, the first guide part 17 and the second guide part 18 abut against each other, the first guide part 17 abuts against the orifice of the connecting hole 16 or the second guide part 18 abuts against the outer edge of the second connecting part 15, so that the connecting part 15 moves along its radial direction, so that the second connecting section 152 corresponds to the second hole section 162, and then smoothly extends into the second hole section 162.

[0074] As an example of this embodiment, the mounting portion 13 and the connecting portion 15 are jointly provided on one of the first movable member 11 and the second movable member 12, so as to facilitate sequentially processing the connecting portion 15 and the mounting portion 13 on one movable member, so as to ensure that the connecting portion 15 and the mounting portion 13 have a high concentricity, thereby improving the concentricity of the first movable member 11, the second movable member 12 and the sealing member 14, and improving the accuracy of the movement of the valve core 1.

[0075] As an example of this embodiment, refer to Figures 1 to 5 As shown, the connecting portion 15 is arranged on the outer peripheral side of the mounting portion 13, so that the mounting portion 13 and the connecting portion 15 are located together on a movable part, so as to facilitate the processing of the connecting portion 15 on the mounting portion 13, so as to ensure that the connecting portion 15 and the mounting portion 13 have a high concentricity, thereby improving the concentricity of the first movable part 11, the second movable part 12 and the sealing part 14, and improving the accuracy of the movement of the valve core 1.

[0076] As an example of this embodiment, refer to Figures 1 to 6 As shown, the connecting portion 15 and the mounting portion 13 are coaxially arranged, wherein the connecting portion 15 and the mounting portion 13 can be jointly provided on one movable member, or respectively located on two different movable members, and the coaxial arrangement is used to ensure that the first movable member 11, the second movable member 12 and the sealing member 14 have a certain concentricity, so as to improve the accuracy of the movement of the valve core 1.

[0077] As an example of this embodiment, the sealing member 14 may be made of a soft material such as rubber.

[0078] Reference Figures 7 to 9 As shown, the present application also relates to a valve, comprising a valve body 2 and the aforementioned valve core 1 , wherein the valve core 1 is installed in the valve body 2 .

[0079] In the above technical solution, after the seal 14 is worn to a certain extent, the valve core 1 can be removed from the valve body 2 first, and then the seal 14 in the valve core 1 can be replaced separately, and then the valve core 1 can be installed in the valve body 2 to restore the normal function of the valve; further, the valve can be used as an independent valve, and can also be installed in a large solenoid valve as a small solenoid valve.

[0080] As an example of this embodiment, refer to Figures 7 to 9 As shown, the valve body 2 is provided with a connected accommodating channel 21, a first flow channel 22, and a second flow channel 23, the accommodating channel 21 has a first position and a second position, the valve core 1 is arranged to reciprocate between the first position and the second position, and a sealing area 24 is provided at the junction of the first flow channel 22 and the accommodating channel 21, the inside of the first flow channel 22, or the inside of the accommodating channel 21; when the valve core 1 moves to the first position, the sealing member 14 forms a sealing match with the sealing area 24 to block the communication between the first flow channel 22 and the second flow channel 23; when the valve core 1 moves to the second position, the sealing member 14 is separated from the sealing area 24 to make the first flow channel 22 communicate with the second flow channel 23;

[0081] Among them, the valve body 2 has the function of opening and closing the circulation channel through the movement of the valve core 1. Furthermore, after the valve core 1 is forced to move to the first position, it will continue to be stressed, so that the seal 14 is continuously pressed on the sealing area 24 to continuously block the connection between the two channels. The valve core 1 can be stressed by magnetic force or mechanical pulling force. After the valve core 1 is forced to move to the second position, there is no restriction on whether the valve core 1 continues to be stressed, and the first circulation channel and the second circulation channel can be connected.

[0082] Reference Fig.10 As shown, the present application also relates to a method for manufacturing the valve core 1, comprising the following steps:

[0083] Step 1, select the sealing member 14, the first movable member 11 and the second movable member 12; Step 2, insert the mounting portion 13 into the sealing member 14, so that the sealing member 14 and the mounting portion 13 form a sealing fit; Step 3, connect the first movable member 11 and the second movable member 12, so that the first movable member 11, the second movable member 12 and the sealing member 14 form a valve core 1.

[0084] The above technical scheme provides a convenient method for manufacturing the valve core 1, which can be completed by sequentially implementing the three steps of selecting, inserting and connecting. The manufacturing is convenient, fast and efficient. For the valve core 1 manufactured by this manufacturing method, after the seal 14 of the valve core 1 is worn to a certain extent, the normal function of the valve can be restored by replacing it separately, so that the maintenance cost of the valve is low.

[0085] As an example of this embodiment, a detachable connection means that two components can be repeatedly disassembled and assembled, including but not limited to fixation by connecting parts, snap connection, pin connection, slot connection, sleeve connection, retaining ring connection, mortise and tenon connection, magnetic connection, and wedge connection.

[0086] As an example of this embodiment, the connecting parts include but are not limited to fasteners, pins, straps, chains, ties, hooks, latches, rivets, ropes, gas-liquid connecting elements, flange plates, webbing, Velcro, and buttons.

[0087] Embodiment 2

[0088] The difference between the second embodiment and the first embodiment is that, referring to Figure 5 As shown, a valve core 1 includes: a first movable member 11, a second movable member 12 and a sealing member 14; the first movable member 11 and the second movable member 12 are detachably connected, and a mounting portion 13 is provided on the second movable member 12; the sealing member 14 has a first end 141 and a second end 142 arranged opposite to each other, and a mounting hole 143 passing through the first end 141 and the second end 142 is provided in the sealing member 14; and the mounting portion 13 is penetrated through the mounting hole 143 and forms a surface connection with the mounting hole 143, so that the sealing member 14 is sealed and connected to the mounting portion 13, and the sealing member 14 forms a detachable fit with the second movable member 12.

[0089] Embodiment 3

[0090] The difference between the third embodiment and the first embodiment is that, referring to Figure 5 As shown, refer to Figure 6As shown, a valve core 1 includes: a first movable member 11, a second movable member 12 and a sealing member 14; the first movable member 11 and the second movable member 12 are detachably connected, and a mounting portion 13 is provided on the first movable member 11 and the second movable member 12; the sealing member 14 has a first end 141 and a second end 142 arranged opposite to each other, and a mounting hole 143 is provided in the sealing member 14, which passes through the first end 141 and the second end 142; and the mounting portion 13 is passed through the mounting hole 143 and forms a surface connection with the mounting hole 143, so that the sealing member 14 is sealed and connected with the mounting portion 13, and the sealing member 14 forms a detachable fit with the first movable member 11 and the second movable member 12, wherein the mounting portion 13 on the first movable member 11 and the mounting portion 13 on the second movable member 12 are arranged correspondingly, and the sealing member 14 is simultaneously tightly sleeved on the mounting portion 13 on the first movable member 11 and the mounting portion 13 on the second movable member 12.

[0091] In summary, the embodiment of the present invention provides a valve core 1, a valve, and a method for manufacturing the valve core 1, and the technical effects thereof are:

[0092] (1) In the valve core 1 of the present invention, the mounting portion 13 is penetrated through the mounting hole 143 so that the sealing member 14 is mounted on the mounting portion 13 and is sealed with the sealing member 14, so that the mounting hole 143 is tightly sleeved on the mounting portion 13, thereby limiting the random movement of the sealing member 14 on the mounting portion 13, and forming a first seal between the sealing member 14 and the mounting portion 13, thereby preventing the medium from flowing between the mounting portion 13 and the mounting hole 143;

[0093] In addition, the first movable member 11 and the second movable member 12 are detachably connected, and the sealing member 14 is detachably matched with at least one of the first movable member 11 and the second movable member 12, so that the first movable member 11, the second movable member 12 and the sealing member 14 are all independent detachable components. The staff can first install the sealing member 14 on the mounting portion 13, and then connect the first movable member 11 to the second movable member 12 to form the valve core 1, and can disassemble the first movable member 11 and the second movable member 12, and then remove the sealing member installed on the mounting portion 13. The valve core 1 can be disassembled by disassembling the first movable member 11 and the second movable member 12, and then removing the old sealing member 14 installed on the mounting portion 13, and then installing a new sealing member 14 on the mounting portion 13, and finally replacing the sealing member 14 in the valve core 1 by connecting the first movable member 11 to the second movable member 12; therefore, after the sealing member 14 is worn to a certain extent, the normal function of the valve can be restored by replacing the sealing member 14 alone, so that the maintenance cost of the valve equipped with the valve core 1 of the present application is low;

[0094] (2) The valve core 1 may also be provided with a stopper on the moving part, and the stopper and the end of the sealing member 14 form a second seal. A stopper may also be provided on the moving part, and a stopper groove may be provided on the sealing member 14, and the stopper and the stopper groove form a third seal, so that multiple seals are formed between the sealing member 14 and the moving part to prevent the medium from flowing between the moving part and the sealing member 14.

[0095] (3) After the seal 14 of the valve equipped with the above-mentioned valve core 1 of the present invention is worn to a certain extent, the valve core 1 can be removed from the valve body 2 first, and then the seal 14 in the valve core 1 can be replaced separately, and then the valve core 1 can be installed in the valve body 2 to restore the normal function of the valve. In addition, the valve can also be used as an independent valve, and can also be installed in a large solenoid valve as a small solenoid valve.

[0096] (4) The method of manufacturing the aforementioned valve core 1 of the present invention is to select the first movable member 11, the second movable member 12 and the sealing member 14 in sequence, insert the mounting portion 13 into the mounting hole 143 of the sealing member 14, and then connect the first movable member 11 and the second movable member 12, so that the manufacturing of the valve core 1 is completed. The manufacturing is convenient, fast and efficient.

[0097] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A valve core (1), characterized in that: include: A first movable member (11) and a second movable member (12) that are detachably connected, wherein a mounting portion (13) is provided on the first movable member (11) and / or the second movable member (12); A sealing member (14), the sealing member (14) having a first end (141) and a second end (142) arranged opposite to each other, a mounting hole (143) penetrating the first end (141) and the second end (142) being provided in the sealing member (14); and The mounting portion (13) is inserted into the mounting hole (143) and forms a surface connection with the mounting hole (143), so that the sealing member (14) is sealedly connected to the mounting portion (13), and the sealing member (14) forms a detachable connection with at least one of the first movable member (11) and the second movable member (12).

2. The valve core (1) according to claim 1, characterized in that: The first movable member (11) is provided with a first stop shoulder (111), and the first stop shoulder (111) is located on a side of the first end (141) away from the second end (142) to limit the movement of the sealing member (14) in a direction from the second end (142) to the first end (141); And / or, the second movable member (12) is provided with a second stop shoulder (121), and the second stop shoulder (121) is located on a side of the second end (142) away from the first end (141) to limit the movement of the sealing member (14) in a direction from the first end (141) to the second end (142).

3. The valve core (1) according to claim 2, characterized in that: When the first movable member (11) is provided with a first stop shoulder (111), and the second movable member (12) is provided with a second stop shoulder (121), the first stop shoulder (111) is arranged around the mounting hole (143), the first stop shoulder (111) is connected to the first end (141), so that the first stop shoulder (111) and the sealing member (14) form a sealing fit, and the second stop shoulder (121) is arranged around the mounting hole (143), the second stop shoulder (121) is connected to the second end (142), so that the second stop shoulder (121) and the sealing member (14) form a sealing fit.

4. The valve core (1) according to claim 1, characterized in that: The first end (141) of the sealing member (14) is provided with a first stop groove (144), the first stop groove (144) is arranged on the end surface of the first end (141), the notch of the first stop groove (144) is oriented from the second end (142) to the first end (141), and the first movable member (11) is provided with a first stop block (112) matched with the first stop groove (144), the first stop block (112) extends into the first stop groove (144); And / or, the second end (142) of the sealing member (14) is provided with a second stop groove (145), the second stop groove (145) is arranged on the end surface of the second end (142), the notch of the second stop groove (145) is oriented from the first end (141) to the second end (142), and the second movable member (12) is provided with a second stop block (122) matching with the second stop groove (145), and the second stop block (122) extends into the second stop groove (145).

5. The valve core (1) according to claim 4, characterized in that: When a first end (141) of the sealing member (14) is provided with a first stop groove (144), and the first movable member (11) is provided with a first stop block (112), the first stop groove (144) is arranged around the mounting hole (143) and forms a sealing fit with the first stop block (112); And / or, when a second end (142) of the sealing member (14) is provided with a second stop groove (145), and the second movable member (12) is provided with a second stop block (122), the second stop groove (145) is arranged around the mounting hole (143) and forms a sealing fit with the second stop block (122).

6. The valve core (1) according to claim 4, characterized in that: When the first end (141) of the sealing element (14) is provided with a first retaining groove (144), the first retaining groove (144) is connected to the mounting hole (143) and is coaxial with the mounting hole (143); And / or, when the second end (142) of the sealing member (14) is provided with a second retaining groove (145), the second retaining groove (145) is connected to the mounting hole (143) and is coaxial with the mounting hole (143).

7. The valve core (1) according to claim 4, characterized in that: In the case where the first end (141) of the sealing member (14) is provided with a first stop groove (144), the first movable member (11) is provided with a first stop block (112), the second end (142) of the sealing member (14) is provided with a second stop groove (145), and the second movable member (12) is provided with a second stop block (122), the first stop block (112) is connected to the bottom of the first stop groove (144), so that the first stop shoulder (111) is connected to the first end (141) of the sealing member (14) to form a sealing fit, and the second stop block (122) is connected to the bottom of the second stop groove (145), so that the second stop shoulder (121) is connected to the second end (142) of the sealing member (14) to form a sealing fit; Alternatively, when the second movable member (12) is provided with a second stop shoulder (121), the first movable member (11) is provided with a first stop block (112), and the sealing member (14) is provided with a first stop groove (144), the first stop block (112) is connected to the bottom of the first stop groove (144), so that the first stop shoulder (111) is connected to the first end (141) of the sealing member (14), thereby forming a sealing fit; Alternatively, when the first movable member (11) is provided with a first stop shoulder (111), the second movable member (12) is provided with a second stop block (122), and the sealing member (14) is provided with a second stop groove (145), the second stop block (122) is connected to the bottom of the second stop groove (145), so that the second stop shoulder (121) is connected to the second end (142) of the sealing member (14) to form a sealing fit.

8. The valve core (1) according to claim 1, characterized in that: One of the first movable member (11) and the second movable member (12) is provided with a connecting portion (15), and the other of the first movable member (11) and the second movable member (12) is provided with a connecting hole (16); the connecting portion (15) is detachably connected to the connecting hole (16), so that the first movable member (11) and the second movable member (12) are detachably connected.

9. The valve core (1) according to claim 8, characterized in that: A first hole section (161) and a second hole section (162) are sequentially arranged in the connecting hole (16) along the axial direction thereof, and an orifice of the connecting hole (16) is formed at an end of the second hole section (162) away from the first hole section (161). A first connecting section (151) and a second connecting section (152) are sequentially arranged in the axial direction of the connecting hole (16). The first connecting section (151) is detachably connected to the first hole section (161) so that the first movable member (11) and the second movable member (12) are detachably connected. The outer wall of the second connecting section (152) is cooperatively connected to the hole wall of the second hole section (162) so as to improve the concentricity of the first movable member (11) and the second movable member (12).

10. The valve core (1) according to claim 9, characterized in that: A first guide portion (17) is provided between the first connecting section (151) and the second connecting section (152), and an outer diameter of the first guide portion (17) gradually decreases along a direction from the second connecting section (152) to the first connecting section (151); And / or, the opening of the connecting hole (16) is provided with a second guide portion (18), and the inner diameter of the second guide portion (18) gradually decreases along the direction from the outside of the connecting hole (16) to the inside of the connecting hole (16).

11. The valve core (1) according to claim 8, characterized in that The mounting portion (13) and the connecting portion (15) are jointly arranged on one of the first movable member (11) and the second movable member (12).

12. The valve core (1) according to claim 8, characterized in that The connecting portion (15) is arranged on the outer peripheral side of the mounting portion (13); or, the connecting portion (15) and the mounting portion (13) are coaxially arranged.

13. A valve, characterized in that: The invention comprises a valve body (2) and a valve core (1) according to any one of claims 1 to 12, wherein the valve core (1) is installed in the valve body (2).

14. The valve according to claim 13, characterized in that The valve body (2) is provided with a accommodating channel (21), a first flow channel (22) and a second flow channel (23) which are connected to each other; the accommodating channel (21) has a first position and a second position; the valve core (1) is arranged to reciprocate between the first position and the second position; and a sealing area (24) is provided at the junction of the first flow channel (22) and the accommodating channel (21), inside the first flow channel (22) or inside the accommodating channel (21); When the valve core (1) moves to the first position, the sealing member (14) forms a sealing fit with the sealing area (24) to block the communication between the first flow channel (22) and the second flow channel (23); When the valve core (1) moves to the second position, the sealing member (14) is separated from the sealing area (24), so that the first flow channel (22) is connected to the second flow channel (23).

15. A method for manufacturing a valve core (1) according to any one of claims 1 to 12, characterized in that: The following steps are involved: Selecting the sealing member (14), the first movable member (11) and the second movable member (12); The mounting portion (13) is inserted into the sealing member (14) so ​​that the sealing member (14) and the mounting portion (13) form a sealing fit; The first movable member (11) and the second movable member (12) are connected so that the first movable member (11), the second movable member (12) and the sealing member (14) form a valve core (1).

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