A press-in-place flow restriction valve

Abstract

The utility model relates to a kind of pressure riveting type flow limiting valve, including valve sleeve, valve core;The valve sleeve is equipped with jackplug in;The valve core includes insertion section, sealing section;Locking groove is equipped on the insertion section along outer wall, after the insertion section is adapted to insert the jackplug, the inner wall of the jackplug is extruded to the locking groove under the extrusion of flow channel of the valve sleeve, the end surface of the sealing section is abutted on the end surface of the valve sleeve;Coaxial flow hole is equipped along the axial direction in the valve core, and the flow hole passes through the insertion section, the sealing section.It is beneficial to effect that the design of locking groove on valve core, so that flow limiting valve in the process of pressure mounting, the inner wall of valve sleeve is deformed and enters locking groove under the extrusion of flow channel, even if the valve sleeve and valve core are separated by axial force and thermal expansion effect in later period, reach long-term stable work goal, and then improve the sealing property of valve sleeve and valve core pressure mounting, to achieve throttling effect.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically a press-fit type flow restrictor valve. Background Technology

[0002] A flow restrictor valve is a device used to control the flow rate of fluids. By controlling the flow rate of fluids to ensure that it does not exceed a set maximum value, it avoids system failures or equipment damage caused by excessive flow.

[0003] Improving the structure of the flow restrictor valve to enhance its sealing performance after installation in the flow channel and achieve the purpose of throttling is a technical problem that urgently needs to be solved. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a press-fit type flow limiting valve.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a press-fit type flow limiting valve, including a valve sleeve and a valve core;

[0006] The valve sleeve is provided with an insertion hole;

[0007] The valve core includes an insertion section and a sealing section;

[0008] The upper edge of the insertion section is provided with a locking groove. After the insertion section is adapted to be inserted into the insertion hole, the valve sleeve is squeezed by the flow channel to press the inner wall of the insertion hole into the locking groove, and one end face of the sealing section abuts against one end face of the valve sleeve.

[0009] A coaxial flow passage is provided along the axial direction inside the valve core, and the flow passage passes through the insertion section and the sealing section.

[0010] As a further technical solution, the outer diameter of the insertion section is smaller than the outer diameter of the sealing section.

[0011] As a further technical solution, the insertion section includes a compression section and a locking section;

[0012] The peripheral wall of the extrusion section is set as a conical surface, the locking groove is formed on the locking section, and the outer diameter of the extrusion section is larger than the outer diameter of the locking section.

[0013] As a further technical solution, the locking groove is connected to the extrusion section.

[0014] As a further technical solution, the insertion hole includes a communicating expansion hole and a limiting hole;

[0015] The extrusion section is inserted into the expansion hole, and the locking section is inserted into the limiting hole.

[0016] As a further technical solution, the flow passage includes an initial flow section, a transition section, a smooth section, and a discharge section connected in sequence;

[0017] The diameter of the initial flow section is larger than the diameter of the transition section. The peripheral walls of both the transition section and the discharge section are conical. The smaller diameter end of the transition section is connected to the smooth section, and the larger diameter end of the discharge section is connected to the smooth section.

[0018] The initial flow section is located within the sealing section and extends to the extrusion section.

[0019] As a further technical solution, the transition section is located in the extrusion section, and the smoothing section and the drainage section are both located in the locking section.

[0020] As a further technical solution, the outer wall of the valve sleeve is provided with a row of sealing ring grooves, and the sealing ring grooves are located at one end near the sealing section.

[0021] The beneficial effects of this utility model are:

[0022] 1. The design of the locking groove on the valve core allows the valve sleeve to deform under the pressure of the flow channel during the press-fitting process and enter the locking groove. Even if the valve sleeve and valve core are subjected to axial force and thermal expansion, they cannot be separated, thus achieving the goal of long-term stable operation. This improves the sealing performance of the press-fitting of the valve sleeve and valve core, thereby achieving the throttling effect.

[0023] 2. The outer diameter of the insertion section is smaller than the outer diameter of the sealing section, so that after the valve core and valve sleeve are installed in the flow channel, the valve core and valve sleeve are sealed together. At the same time, the fluid passes through the flow hole to control the fluid flow path and flow rate.

[0024] 3. The specific structural design of the insertion section facilitates the installation of the valve core into the valve sleeve by press fitting. At the same time, a sealing connection is achieved between the outer wall of the valve core and the inner wall of the valve sleeve, thereby improving the sealing performance and stability of the flow limiting valve.

[0025] 4. The specific structural design of the flow passage reduces the impact damage of the fluid on the valve core and improves the service life of the valve core. Attached Figure Description

[0026] Figure 1 This is an exploded schematic diagram of a press-fit type flow restrictor valve according to this utility model;

[0027] Figure 2 This is a schematic diagram of the structure of a press-fit type flow limiting valve of this utility model, with the valve core partially inserted into the valve sleeve.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] Valve sleeve 1, insertion hole 11, expansion hole 111, limiting hole 112, sealing ring groove 12;

[0030] Valve core 2, insertion section 21, locking groove 211, compression section 212, locking section 213, sealing section 22, flow passage 23, initial flow section 231, transition section 232, smooth section 233, and discharge section 234. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0034] Example 1

[0035] This embodiment provides a press-fit type flow restrictor valve to improve the sealing performance after installation in the flow channel, thereby achieving effective flow restriction and throttling.

[0036] This flow-limiting valve achieves press-fitting through impulse control, see reference. Figure 1 , Figure 2 Specifically, it includes a valve sleeve 1 and a valve core 2; the valve sleeve 1 is provided with an insertion hole 11; the valve core 2 includes an insertion section 21 and a sealing section 22;

[0037] The insertion section 21 has a locking groove 211 extending along its outer peripheral wall. After the insertion section 21 is adapted to be inserted into the insertion hole 11, the valve sleeve 1 is squeezed by the flow channel to press the inner wall of the insertion hole 11 into the locking groove 211. One end face of the sealing section 22 abuts against one end face of the valve sleeve 1. That is, after the valve core 2 is inserted into the valve sleeve 1, the sealing is achieved by the flow channel compression, thereby achieving the purpose of throttling. It should be noted that during the installation process, the insertion hole 11 in the valve sleeve 1 undergoes compression deformation when subjected to axial pressure, causing the diameter of the insertion hole 11 to become smaller and embed into the locking groove 211. Therefore, after the insertion hole 11 deforms under axial pressure, the width of the locking groove 211 pressed into it in the axial direction depends on the width of the locking groove 211. That is, during the compression process of the insertion hole 11, the part with the largest diameter change is the part corresponding to the locking groove 211.

[0038] A coaxial flow passage 23 is provided along the axial direction inside the valve core 2, and the flow passage 23 penetrates the insertion section 21 and the sealing section 22, so that the flow limiting valve installed after the flow channel can effectively control the fluid flow rate in the flow channel and flow according to the predetermined flow path.

[0039] It should be noted that during the installation of the flow limiting valve, the valve sleeve 1 is first installed on the installation platform inside the flow channel, and then the valve core 2 is pressed onto the valve sleeve 1 to install it inside the flow channel by means of press riveting.

[0040] Furthermore, the outer diameter of the insertion section 21 is smaller than the outer diameter of the sealing section 22, so that after the insertion section 21 is inserted into the valve sleeve 1, the sealing section 22 abuts against one end face of the valve sleeve 1 to complete the connection between the valve sleeve 1 and the valve core 2.

[0041] In the specific implementation process, refer to Figure 1 , Figure 2 The insertion section 21 includes a compression section 212 and a locking section 213. The peripheral wall of the compression section 212 is set as a conical surface, and the locking groove 211 is formed on the locking section 213. The outer diameter of the compression section 212 is larger than the outer diameter of the locking section 213. That is, during the installation process, the locking section 213 and the compression section 212 enter the valve sleeve 1 one after the other. At this time, the valve sleeve 1 is compressed and deformed under the pressure of the inner wall of the flow channel. The inner wall of the insertion hole 11 corresponding to the locking groove 211 is squeezed into the locking groove 211 under the action of axial pressure, so as to achieve the sealing of the connection between the valve core 2 and the valve sleeve 1.

[0042] For example, if the outer diameter of the extrusion section 212 is larger than the inner diameter of the corresponding part in the insertion hole 11, then under the action of the extrusion force, the extrusion section 212 enters the insertion hole 11 under the action of the external force, causing the inner wall of the corresponding part of the insertion hole 11 to deform simultaneously. Then, under the combined action of the flow channel, the inner wall of the flow hole 23 corresponding to the locking groove 211 is compressed and deformed and enters the locking groove 211, thereby realizing the sealed connection between the valve core 2 and the valve sleeve 1.

[0043] To improve sealing, the locking groove 211 is connected to the extrusion section 212. That is, during the process of the extrusion section 212 being inserted into the insertion hole 11, the part of the insertion hole 11 that is first subjected to force and deforms immediately enters the locking groove 211, so as to achieve a quick sealing connection between the valve core 2 and the valve sleeve 1.

[0044] Furthermore, the flow passage 23 includes an initial flow section 231, a transition section 232, a smooth section 233, and a discharge section 234 connected in sequence;

[0045] The diameter of the initial flow section 231 is larger than the diameter of the transition section 232. The peripheral walls of both the transition section 232 and the discharge section 234 are conical. The smaller diameter end of the transition section 232 connects to the smooth section 233, and the larger diameter end of the discharge section 234 connects to the smooth section 233. The initial flow section 231 is located within the sealing section 22 and extends to the extrusion section 212, allowing the fluid to first enter the initial flow section 231 and then the transition section 232. The fluid entering the transition section 232 converges and its flow rate slows down, reducing the impact damage of the fluid to the inner wall of the valve core 2. After that, the fluid enters the smooth section 233 and is discharged from the discharge section 234. The overall structural design of the flow passage 23 makes the fluid velocity and pressure stable when the fluid flows out of the flow limiting valve. At the same time, the eddy noise of the flow field is small, which improves the performance of the flow limiting valve equipment using this utility model. For example, if the flow limiting valve is used in the transmission oil passage, the noise generated during the operation of the transmission will be reduced.

[0046] The transition section 232 is located in the compression section 212, and the smooth section 233 and the discharge section 234 are both located in the locking section 213, so that after the fluid flows into the valve core 2, it gathers in the initial flow section 231 and then the flow rate is adjusted to enter the transition section 232.

[0047] In the specific implementation process, refer to Figure 1 , Figure 2The insertion hole 11 includes a communicating extrusion hole 111 and a limiting hole 112; the extrusion section 212 is inserted into the extrusion hole 111, and the locking section 213 is inserted into the limiting hole 112 to realize the installation of the valve sleeve 1 and the valve core 2. That is, during the installation process, the inner wall of the limiting hole 112 undergoes compression deformation under axial pressure, causing the inner diameter of the limiting hole 112 to decrease and embed into the locking groove 211. It should be noted that the length of the limiting hole 112 embedded in the locking groove 211 in the axial direction depends on the groove length of the groove 211 in the axial direction. The specific length is designed according to actual needs, so that the valve sleeve 1 and the valve core 2, after installation, cannot be separated even under axial force and thermal expansion, thus achieving the goal of long-term stable operation.

[0048] In the specific implementation process, refer to Figure 1 , Figure 2 To improve the sealing performance of the flow-limiting valve in the flow channel and achieve effective throttling, a row of sealing ring grooves 12 are provided on the outer wall of the valve sleeve 1, and the sealing ring grooves 12 are located at one end near the sealing section 22. That is, when the valve core 2 is inserted into the valve sleeve 1 under the action of external force, the inner wall of the flow channel corresponding to the sealing ring groove 12 deforms and enters the sealing ring groove 12 under the action of extrusion force, so as to achieve effective sealing between the flow-limiting valve and the flow channel, thereby achieving the purpose of effective throttling while achieving sealing.

[0049] To improve stability, an annular boss (not labeled in the figure) is provided on the side of the locking section 213 opposite to the extrusion section 212, and the locking groove 211 is located between the annular boss and the bottom end face of the extrusion section 212. Correspondingly, the insertion hole 11 in the valve sleeve 1 is adapted to the insertion section 21. During the pressing process, after the valve core 2 is pressed into the valve sleeve 1, the inner wall of the valve sleeve 1 is compressed and deformed under the extrusion force and locked into the locking groove 211. The other parts of the insertion section 21 are adapted to the insertion hole 11 to achieve a sealed connection between the valve sleeve 1 and the valve core 2.

[0050] This utility model is implemented as follows:

[0051] The valve sleeve 1 is mounted on an installation platform within the flow channel (for example, the flow channel has a boss for mounting the valve sleeve 1). Then, the valve core 2 is pressed into the valve sleeve 1, causing the inner wall of the insertion hole 11 to be compressed and deformed under axial pressure and squeezed into the locking groove 211. The inner wall of the flow channel deforms and squeezes into the sealing ring groove 12, thereby achieving a sealed installation of the valve sleeve 1 and the valve core 2. At the same time, the flow limiting valve is sealed and installed within the flow channel.

[0052] This utility model has a simple structure, is easy to install, and has good sealing performance, while allowing the fluid to flow along a predetermined path, thus improving the throttling effect.

[0053] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0054] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0055] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A press-fit type flow restrictor valve, characterized in that, Includes valve sleeve (1) and valve core (2); The valve sleeve (1) is provided with an insertion hole (11); The valve core (2) includes an insertion section (21) and a sealing section (22); The insertion section (21) has a locking groove (211) along its outer peripheral wall. After the insertion section (21) is adapted to be inserted into the insertion hole (11), the valve sleeve (1) is squeezed by the flow channel to press the inner wall of the insertion hole (11) into the locking groove (211). One end face of the sealing section (22) abuts against one end face of the valve sleeve (1). A coaxial flow hole (23) is provided along the axial direction inside the valve core (2), and the flow hole (23) passes through the insertion section (21) and the sealing section (22).

2. The press-fit type flow restrictor valve according to claim 1, characterized in that, The outer diameter of the insertion section (21) is smaller than the outer diameter of the sealing section (22).

3. A press-fit type flow restrictor valve according to claim 2, characterized in that, The insertion section (21) includes a compression section (212) and a locking section (213); The peripheral wall of the extrusion section (212) is set as a conical surface, the locking groove (211) is opened on the locking section (213), and the outer diameter of the extrusion section (212) is larger than the outer diameter of the locking section (213).

4. A press-fit type flow restrictor valve according to claim 3, characterized in that, The locking groove (211) is connected to the pressing section (212).

5. A press-fit type flow restrictor valve according to claim 3, characterized in that, The insertion hole (11) includes a communicating expansion hole (111) and a limiting hole (112). The extrusion section (212) is inserted into the extrusion hole (111), and the locking section (213) is inserted into the limiting hole (112).

6. A press-fit type flow restrictor valve according to claim 4, characterized in that, The flow passage (23) includes an initial flow section (231), a transition section (232), a smooth section (233), and a discharge section (234) connected in sequence. The diameter of the initial flow section (231) is larger than the diameter of the transition section (232). The peripheral walls of the transition section (232) and the discharge section (234) are both conical. The smaller diameter end of the transition section (232) is connected to the smooth section (233), and the larger diameter end of the discharge section (234) is connected to the smooth section (233). The initial flow section (231) is located within the sealing section (22) and extends to the extrusion section (212).

7. A press-fit type flow restrictor valve according to claim 6, characterized in that, The transition section (232) is located in the compression section (212), and the smooth section (233) and the discharge section (234) are both located in the locking section (213).

8. A press-fit type flow restrictor valve according to any one of claims 1-7, characterized in that, The outer wall of the valve sleeve (1) is provided with a row of sealing ring grooves (12), and the sealing ring grooves (12) are located at one end near the sealing section (22).

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