A new one-way adjustable plug-in throttle valve

Abstract

The utility model relates to throttle valve technical field discloses a new one -way adjustable type plug -in throttle valve, include: the knob, nut and valve seat are successively set up in adjusting spring seat top, adjusting spring seat bottom is provided with the accommodating cavity, and the spring is arranged in the accommodating cavity, the valve core is set up in adjusting spring seat bottom, and the valve core one end stretches into and the accommodating cavity and spring abuts, the valve shell is set up in the valve core outer wall, and the valve shell one end is set up in adjusting spring seat outer wall, and the valve seat one end is set up in the valve shell outer wall, the fixed pin is penetrated valve core, and both ends of fixed pin are inserted with adjusting spring seat, the utility model discloses the rotation knob drives adjusting spring seat movement, and then compresses or stretches the spring to promote the valve core removal, can realize the accurate regulation to fluid flow, satisfies the demand under different working conditions.

Description

Technical Field

[0001] This utility model relates to the field of throttle valve technology, and in particular to a novel one-way adjustable cartridge throttle valve. Background Technology

[0002] Precise control of fluid flow is crucial in various industrial equipment and hydraulic systems. Traditional throttle valves often suffer from problems such as insufficient adjustment flexibility, low precision, or complex structure. For example, some throttle valves are difficult to fine-tune, failing to meet the precise requirements of flow variation under different operating conditions; others have structural designs that make installation and maintenance difficult, increasing operating costs. Therefore, it is necessary to develop a new type of one-way adjustable cartridge throttle valve to overcome the shortcomings of existing technologies and provide a solution that is easy to adjust, highly precise, and easy to install and maintain. Utility Model Content

[0003] The purpose of this invention is to provide a novel one-way adjustable cartridge throttle valve, which solves the problems of traditional throttle valves, such as insufficient adjustment flexibility, low precision, or complex structure.

[0004] This utility model provides a novel one-way adjustable cartridge throttle valve, comprising: an adjusting spring seat, a spring, a valve seat, a valve core, a valve body, and a fixing pin; A knob is fixedly installed on the outer wall of one end of the adjusting spring seat, and a nut is sleeved below the knob. The valve seat is sleeved on the outer wall of the other end of the adjusting spring seat, and the nut abuts against the valve seat. A receiving cavity is provided at the bottom of the adjusting spring seat, and the spring is disposed in the receiving cavity. The valve core is disposed at the bottom of the adjusting spring seat, and one end of the valve core extends into the receiving cavity and abuts against the spring. The valve shell is sleeved on the outer wall of the valve core, and one end of the valve shell is sleeved on the outer wall of the adjusting spring seat, and one end of the valve seat is sleeved on the outer wall of the valve shell. The fixing pin passes through the valve core, and both ends of the fixing pin are inserted into the adjusting spring seat.

[0005] Preferably, the knob is fixedly mounted on the adjusting spring seat by screws.

[0006] Preferably, the valve seat has a valve seat groove on its outer side, and an O-ring is fitted inside the valve seat groove.

[0007] Preferably, the outer side of the adjusting spring seat is provided with a spring seat groove, and a retaining ring and an O-ring are sleeved inside the spring seat groove.

[0008] Preferably, a valve housing groove is provided on the outer side of the valve housing, and a retaining ring and an O-ring are sleeved inside the valve housing groove.

[0009] Preferably, the outer wall of the adjusting spring seat is provided with threads, and the inner side of the valve seat connected to the adjusting spring seat is provided with threads. The nut and the valve seat are connected to the adjusting spring seat through threads.

[0010] Preferably, one end of the valve core is provided with a through groove and the other end is provided with a long groove. The fixing pin is connected to the valve core through the through groove. The width of the through groove matches the diameter of the fixing pin, and the length of the through groove is greater than the diameter of the fixing pin.

[0011] Preferably, the valve housing is provided with threads on its outer side, and the valve seat is provided with threads at one end connected to the valve housing on its inner side, and the valve housing and the valve seat are connected by threads.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a rotating knob to move an adjusting spring seat, which in turn compresses or stretches the spring to move the valve core, enabling precise regulation of fluid flow to meet the needs of various operating conditions. Grooves and O-rings are provided on the adjusting spring seat, valve body, and valve seat, and threaded connections are employed to effectively prevent fluid leakage and improve the sealing performance of the device. The reasonable connection methods between components, such as threaded connections and fixing pins, ensure the structural stability of the entire device, preventing loosening or deformation during long-term use. The knob design allows operators to easily adjust the flow rate without complex tools or skills, lowering the barrier to entry. The throttle valve has a relatively simple structure, and the assembly and disassembly of components are easy, facilitating installation, debugging, and maintenance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a novel one-way adjustable cartridge throttle valve according to this utility model; Figure 2 This is a schematic diagram of the structure of the adjusting spring seat in an embodiment of this utility model; Figure 3 This is a schematic diagram of the valve core structure in an embodiment of this utility model; Figure 4 This is a schematic diagram of the fixing pin structure in an embodiment of this utility model; Figure 5This is a schematic diagram of the valve housing in an embodiment of this utility model.

[0015] In the diagram, 10 is the adjusting spring seat; 11 is the knob; 12 is the nut; 13 is the receiving cavity; 14 is the screw; 15 is the spring seat groove; 20 is the spring; 30 is the valve seat; 31 is the valve seat groove; 40 is the valve core; 41 is the through groove; 42 is the long groove; 50 is the valve body; 51 is the valve body groove; 60 is the fixing pin; 70 is the O-ring; and 80 is the retaining ring. Detailed Implementation

[0016] 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 of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0017] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0018] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0020] See Figure 1 , Figure 4 As shown, this utility model provides a novel one-way adjustable cartridge throttle valve, comprising: an adjusting spring seat 10, a spring 20, a valve seat 30, a valve core 40, a valve shell 50, and a fixing pin 60. A knob 11 is fixedly installed on the outer wall of one end of the adjusting spring seat 10, and a nut 12 is sleeved below the knob 11. A valve seat 30 is sleeved on the outer wall of the other end of the adjusting spring seat 10, and the nut 12 abuts against the valve seat 30. A receiving cavity 13 is provided at the bottom of the adjusting spring seat 10, and a spring 20 is disposed in the receiving cavity 13. A valve core 40 is disposed at the bottom of the adjusting spring seat 10, and one end of the valve core 40 extends into the receiving cavity 13 and abuts against the spring 20. A valve shell 50 is sleeved on the outer wall of the valve core 40, and one end of the valve shell 50 is sleeved on the outer wall of the adjusting spring seat 10. One end of the valve seat 30 is sleeved on the outer wall of the valve shell 50. A fixing pin 60 passes through the valve core 40, and both ends of the fixing pin 60 are inserted into the adjusting spring seat 10.

[0021] Specifically, the various components of this invention achieve unidirectional adjustment of the valve through precise fit. The adjusting spring seat 10, as one of the core components, has a knob 11 fixedly mounted on its outer wall at one end. The knob 11 is designed for easy manual operation by the user to precisely adjust the opening of the throttle valve. A nut 12 is fitted below the knob 11, serving to lock and secure it, ensuring that the knob 11 remains stable after adjustment and preventing positional displacement due to vibration or other external forces. The valve seat 30 is fitted onto the outer wall of the other end of the adjusting spring seat 10 and abuts against the nut 12, forming a tight connection. This design not only ensures the coaxiality between the adjusting spring seat 10 and the valve seat 30 but also effectively avoids leakage problems caused by loosening.

[0022] The bottom of the adjusting spring seat 10 has a receiving cavity 13 for mounting the spring 20. The spring 20, located within the receiving cavity 13, provides elastic force to control the movement of the valve core 40. The valve core 40 is positioned at the bottom of the adjusting spring seat 10, with one end extending into the receiving cavity 13 and abutting against the spring 20. Through the elastic force of the spring 20, the valve core 40 can reciprocate within a certain range, realizing the opening and closing function of the throttle valve. This design gives the throttle valve a sensitive response characteristic, enabling rapid flow adjustment according to actual needs.

[0023] The valve body 50 is fitted onto the outer wall of the valve core 40, providing protection and support. Simultaneously, one end of the valve body 50 is fitted onto the outer wall of the adjusting spring seat 10, further enhancing the overall structural stability. One end of the valve seat 30 is also fitted onto the outer wall of the valve body 50, forming a multi-layered nested structure to ensure sealing and reliability between components. Furthermore, the fixing pin 60 penetrates the valve core 40, and its two ends are inserted into the adjusting spring seat 10. The design of the fixing pin 60 not only restricts the radial movement of the valve core 40 but also allows it to slide freely in the axial direction, thereby ensuring the smoothness and accuracy of valve operation.

[0024] The novel one-way adjustable cartridge throttle valve provided by this utility model achieves the characteristics of compact structure, simple operation and reliable performance by rationally arranging the components and optimizing their connection method.

[0025] In some embodiments of this application, the knob 11 is fixedly mounted on the adjusting spring seat 10 by screws 14.

[0026] Specifically, the knob 11 is securely mounted to the adjusting spring seat 10 using screws 14. The knob 11 has threaded holes that match the screws 14, while the adjusting spring seat 10 has corresponding mounting holes. During installation, first place the knob 11 in the designated position on the adjusting spring seat 10, ensuring the holes are aligned. Then, use a suitable tool to screw in the screws 14 until the knob 11 is firmly fixed to the adjusting spring seat 10, thus achieving a reliable connection. This not only simplifies operation but also effectively ensures the stability of the knob 11 on the adjusting spring seat 10, preventing loosening or detachment due to external forces, thereby improving the overall durability and reliability of the structure.

[0027] See Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments of this application, a valve seat groove 31 is provided on the outer side of the valve seat 30, and an O-ring 70 is sleeved inside the valve seat groove 31.

[0028] The outer side of the adjusting spring seat 10 is provided with a spring seat groove 15, and a retaining ring 80 and an O-ring 70 are sleeved inside the spring seat groove 15.

[0029] A valve housing groove 51 is provided on the outer side of the valve housing 50, and a retaining ring 80 and an O-ring 70 are fitted inside the valve housing groove 51.

[0030] Specifically, the outer side of the valve seat 30 is designed with a specific valve seat groove 31. This groove structure can effectively accommodate the O-ring 70, thereby improving sealing performance and ensuring higher reliability at the connection. The O-ring 70 fills the tiny gap between the groove and the mating parts through elastic deformation, preventing fluid leakage. At the same time, it can also adapt to certain assembly errors and dimensional changes caused by thermal expansion and contraction, further optimizing the overall function.

[0031] Specifically, the outer side of the adjusting spring seat 10 is provided with a spring seat groove 15, in which a retaining ring 80 and an O-ring 70 are installed. The main function of the retaining ring 80 is to restrict the axial movement of the O-ring 70 under high pressure or dynamic conditions, preventing it from shifting due to force, thereby ensuring the stability of the sealing system. The O-ring 70, through its own elastic properties, achieves a more reliable radial sealing effect with the assistance of the retaining ring 80, providing excellent leak-proof performance for the adjusting spring seat 10.

[0032] Specifically, the valve housing 50 has a dedicated valve housing groove 51 on its outer side, and a retaining ring 80 and an O-ring 70 are fitted inside this groove. The retaining ring 80 is used to fix the position of the O-ring 70 and provide support to prevent it from falling off or being damaged under high pressure or vibration. The O-ring 70, with its excellent elasticity and adaptability, works in conjunction with the retaining ring 80 to ensure that the connection interface between the valve housing 50 and other components achieves a high degree of sealing, thereby meeting the needs of use under complex operating conditions.

[0033] In some embodiments of this application, the outer wall of the adjusting spring seat 10 is provided with threads, the inner side of the valve seat 30 is provided with threads at one end connected to the adjusting spring seat 10, and the nut 12 and the valve seat 30 are connected to the adjusting spring seat 10 by threads.

[0034] Specifically, the outer wall of the adjusting spring seat 10 is provided with a threaded structure, which ensures a secure connection with other components. Simultaneously, the inner side of the valve seat 30, at the end connected to the adjusting spring seat 10, also has a matching thread, achieving a tight fit with the adjusting spring seat 10. Furthermore, the nut 12 and the valve seat 30, through their own threaded structures, are respectively tightened to the threads on the outer wall of the adjusting spring seat 10, forming a complete assembly system. This threaded connection method not only facilitates installation and disassembly but also effectively ensures the sealing and stability between components, preventing loosening due to vibration or pressure changes.

[0035] See Figure 3 As shown, in some embodiments of this application, the valve core 40 is provided with a through groove 41 at one end and a long groove 42 at the other end. The fixing pin 60 is connected to the valve core 40 through the through groove 41. The width of the through groove 41 matches the diameter of the fixing pin 60, and the length of the through groove 41 is greater than the diameter of the fixing pin 60.

[0036] Specifically, the valve core 40 has a through groove 41 at one end and a long groove 42 at the other end. The through groove 41 is vertical, while the long groove 42 is horizontal. The fixing pin 60 is connected to the valve core 40 through the through groove 41. The width of the through groove 41 is precisely designed to ensure a perfect match with the diameter of the fixing pin 60, resulting in a tight and stable connection. Simultaneously, the length of the through groove 41 is designed to be greater than the diameter of the fixing pin 60. This structural feature allows the fixing pin 60 a certain amount of room to move within the through groove 41, enabling flexible movement or adjustment of the valve core 40 while ensuring the reliability and functionality of the connection. The long groove 42 ensures sufficient movement space for the valve core 40 within its adjustable range and provides a return oil channel.

[0037] In some embodiments of this application, the valve housing 50 is provided with threads on the outer side, and the valve seat 30 is provided with threads at the end connected to the valve housing 50 on the inner side, and the valve housing 50 and the valve seat 30 are connected by threads.

[0038] Specifically, the outer side of the valve body 50 is designed with a threaded structure. This thread has good machining precision and surface finish to ensure reliable connection and sealing. Simultaneously, the inner side of the valve seat 30, at the end connected to the valve body 50, also has a matching threaded structure. These threads are designed according to standard mechanical connection specifications, enabling a tight fit. During actual assembly, the valve body 50 and valve seat 30 are connected by threads. The tight thread engagement not only ensures mechanical strength but also effectively prevents fluid leakage, thereby improving the stability and functionality of the overall structure. This threaded connection method also facilitates disassembly and maintenance, further enhancing ease of use.

[0039] In actual production, assembly is carried out according to the following steps: First, place the spring into the receiving cavity at the bottom of the adjusting spring seat. Then, install the valve core at the bottom of the adjusting spring seat, with one end of the valve core abutting against the spring. Next, insert the fixing pin through the valve core and connect both ends of the fixing pin to the adjusting spring seat, ensuring the valve core is fixed in position and can move flexibly within a certain range. Place the valve seat and nut onto the outer wall of the adjusting spring seat, with the nut abutting against the valve seat, and secure the nut and valve seat to the adjusting spring seat using threads. Install a knob on the outer wall of one end of the adjusting spring seat and secure it with screws. Place the valve body onto the outer wall of the valve core, with one end of the valve body fitting onto the outer wall of the adjusting spring seat, and then place one end of the valve seat onto the outer wall of the valve body. Finally, connect the valve body and valve seat using threads. Install retaining rings and O-rings in the corresponding grooves, such as the spring seat groove on the outside of the adjusting spring seat, the valve body groove on the outside of the valve body, and the valve seat groove on the outside of the valve seat, to enhance the sealing effect.

[0040] When using this throttle valve, the operator only needs to rotate the knob to move the adjusting spring seat, thereby changing the compression or extension state of the spring, pushing the valve core to move, and thus regulating the fluid flow rate. When it is necessary to increase the flow rate, rotate the knob counterclockwise to extend the spring, move the valve core away from the valve seat, and increase the valve opening; when it is necessary to decrease the flow rate, rotate the knob clockwise to compress the spring, move the valve core closer to the valve seat, and decrease the valve opening.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of this utility model. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model should be covered within the protection scope of the claims of this utility model.

Claims

1. A novel one-way adjustable cartridge throttle valve, characterized in that, include: Adjusting spring seat, spring, valve seat, valve core, valve body and fixing pin; A knob is fixedly installed on the outer wall of one end of the adjusting spring seat, and a nut is sleeved below the knob. The valve seat is sleeved on the outer wall of the other end of the adjusting spring seat, and the nut abuts against the valve seat. A receiving cavity is provided at the bottom of the adjusting spring seat, and the spring is disposed in the receiving cavity. The valve core is disposed at the bottom of the adjusting spring seat, and one end of the valve core extends into the receiving cavity and abuts against the spring. The valve shell is sleeved on the outer wall of the valve core, and one end of the valve shell is sleeved on the outer wall of the adjusting spring seat, and one end of the valve seat is sleeved on the outer wall of the valve shell. The fixing pin passes through the valve core, and both ends of the fixing pin are inserted into the adjusting spring seat.

2. The novel one-way adjustable cartridge throttle valve according to claim 1, characterized in that, The knob is fixedly mounted on the adjusting spring seat by screws.

3. The novel one-way adjustable cartridge throttle valve according to claim 1, characterized in that, The valve seat has a valve seat groove on its outer side, and an O-ring is fitted inside the valve seat groove.

4. The novel one-way adjustable cartridge throttle valve according to claim 1, characterized in that, The outer side of the adjusting spring seat is provided with a spring seat groove, and a retaining ring and an O-ring are sleeved inside the spring seat groove.

5. The novel one-way adjustable cartridge throttle valve according to claim 1, characterized in that, A valve housing groove is provided on the outer side of the valve housing, and a retaining ring and an O-ring are fitted inside the valve housing groove.

6. The novel one-way adjustable cartridge throttle valve according to claim 1, characterized in that, The outer wall of the adjusting spring seat is provided with threads, and the inner side of the valve seat is provided with threads at the end connected to the adjusting spring seat. The nut and the valve seat are connected to the adjusting spring seat through threads.

7. The novel one-way adjustable cartridge throttle valve according to claim 1, characterized in that, The valve core has a through groove at one end and a long groove at the other end. The fixing pin is connected to the valve core through the through groove. The width of the through groove matches the diameter of the fixing pin, and the length of the through groove is greater than the diameter of the fixing pin.

8. The novel one-way adjustable cartridge throttle valve according to claim 1, characterized in that, The valve body has threads on its outer side, and the valve seat has threads on its inner side at the end connected to the valve body. The valve body and the valve seat are connected by threads.

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