Throttle valve

Abstract

According to the scheme, the throttling valve comprises a valve body which is hollow, a plurality of oil holes are formed in the side face of the valve body, and an oil inlet and outlet is formed in the front end of the valve body; at least part of the valve element is arranged in the valve body, one end of the valve element is in threaded connection with the inner wall of the rear end of the valve body, the other end of the valve element is located in the oil inlet and outlet of the valve body, and an oil inlet channel is formed between the outer wall of the valve element and the inner wall of the valve body; the size of the opening of the oil inlet channel is adjusted by adjusting the position of the valve element in the valve body. An oil return channel and an oil return hole are formed in the valve element, and the oil return hole is communicated with the oil inlet channel; the ejector head is located at an opening of the oil return channel of the valve element; the steel ball is arranged between the ejector head and the oil return channel and used for blocking and opening the space between the ejector head and the oil return channel; the elastic reset piece is arranged between the steel ball and the inner end face of the oil return channel. According to the multi-channel oil return device, the oil inlet flow can be controlled, oil return is not affected, and multi-channel backflow is achieved.

Description

Technical Field

[0001] The present application relates to a valve structure, in particular to a throttle valve. Background Art

[0002] A throttle valve is a valve that controls the flow of a fluid by changing the throttle section or throttle length. Most of the current throttle valves can only achieve the function of two-way flow conditions, and cannot achieve the function of one-way flow regulation and unaffected return flow.

[0003] Therefore, a throttle valve is needed that can control the oil inlet and uncontrol the oil return to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of this application is to provide a throttle valve to address the above-mentioned problems in the prior art.

[0005] In order to achieve the above application purpose, the present application adopts the following technical solution: the throttle valve includes:

[0006] The valve body is hollow, with multiple oil holes on the side and oil inlet and outlet ports at the front end;

[0007] The valve core is at least partially disposed in the valve body, one end of which is threadedly connected to the rear end inner wall of the valve body, and the other end is located in the oil inlet and outlet of the valve body, and an oil inlet channel is formed between the outer wall of the valve core and the inner wall of the valve body; the size of the opening of the oil inlet channel can be adjusted by adjusting the position of the valve core in the valve body; and an oil return channel and an oil return hole are provided in the valve core, and the oil return hole is connected to the oil inlet channel;

[0008] The top head is located at the opening of the oil return passage of the valve core;

[0009] A steel ball is arranged between the top head and the oil return passage, and is used to block and open the top head and the oil return passage;

[0010] The elastic reset member is arranged between the steel ball and the inner end surface of the oil return channel.

[0011] Working principle and beneficial effects: Compared with the prior art, the present application adjusts the positional relationship between the valve core and the valve body to adjust the size of the oil inlet channel to achieve the flow condition of the oil inlet. When reflux is required, oil is introduced into the oil inlet and outlet ports, and the valve body is adjusted to close the oil inlet channel. Only the oil return channel of the valve core can be connected to the oil inlet and outlet ports. The oil can push open the steel ball, causing the oil return channel to be stuck, so that the oil can flow back from the oil return hole to the oil inlet channel and then be discharged from the oil hole. In this way, the flow rate of the return oil will not be restricted, and multi-channel reflux can be achieved, with excellent flow control capabilities.

[0012] Furthermore, it also includes a fixing ring arranged at the oil inlet and outlet of the valve body, and the fixing ring is at least partially located outside the valve body. In this way, it can be applied to a variety of structures and can be installed on various pipe openings, expanding the scope of application of the present application. Moreover, the fixing ring can better cooperate with the top head to realize the control of the oil inlet flow rate.

[0013] Furthermore, one end of the mandrel facing the oil inlet and outlet is chamfered and provided with a plurality of oil inlet notches. The provision of the oil inlet notches can more precisely control the flow rate of the oil inlet.

[0014] Furthermore, the oil inlet notches are evenly spaced along the circumferential direction of the mandrel to achieve multi-channel oil inlet control.

[0015] Furthermore, the oil inlet notch is a V-shaped structure.

[0016] Furthermore, the oil return holes are evenly spaced along the circumferential direction of the valve core to achieve multi-channel oil return.

[0017] Furthermore, a sealing ring is provided between the valve core and the valve body to improve the sealing performance.

[0018] Furthermore, a nut is included, which is arranged on the part of the valve core exposed from the valve body and is used to fix and seal the valve core, thereby preventing the valve core from leaking and reinforcing the valve core.

[0019] Furthermore, a connection groove is provided on the end surface of the valve core away from the valve body. The valve core can be easily adjusted by inserting a tool into the connection groove.

[0020] Furthermore, the inner wall of one end of the top head facing the valve body is chamfered, and the inner diameter of the valve body is smaller than the diameter of the steel ball, and the outer diameter of the valve body is larger than the diameter of the steel ball, so as to better cooperate with the steel ball and improve the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of Example 1 of the present application;

[0022] Figure 2 It is a structural diagram of Example 2 of the present application.

[0023] In the figure, 1. valve body; 2. valve core; 3. top head; 4. steel ball; 5. elastic reset member; 6. fixing ring; 7. nut; 8. sealing ring; 11. oil hole; 12. oil inlet and outlet; 13. oil inlet channel; 21. oil return channel; 22. oil return hole; 23. connecting groove; 31. oil inlet notch. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0025] Those skilled in the art should understand that, in the disclosure of the present application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present application.

[0026] Example 1

[0027] like Figure 1 As shown, the throttle valve includes:

[0028] The valve body 1 is hollow, with multiple oil holes 11 on the side and an oil inlet and outlet 12 at the front end;

[0029] The valve core 2 is at least partially disposed in the valve body 1, one end of which is screwed to the rear end inner wall of the valve body 1, and the other end is located in the oil inlet and outlet 12 of the valve body 1, and an oil inlet channel 13 is formed between the outer wall of the valve core 2 and the inner wall of the valve body 1; the size of the opening of the oil inlet channel 13 can be adjusted by adjusting the position of the valve core 2 in the valve body 1; and an oil return channel 21 and an oil return hole 2211 are provided in the valve core 2, and the oil return hole 2211 is communicated with the oil inlet channel 13;

[0030] In this embodiment, the oil return hole 2211 is closer to the oil channel 13 than the steel ball 4. The oil return holes 2211 are evenly spaced along the circumferential direction of the valve core 2. Preferably, the portion of the valve core 2 exposed from the valve body 1 is fixed with a nut 7 to achieve sealing and reinforcement. When adjustment is required, the nut 7 is loosened. Preferably, a sealing ring 8 is provided between the valve core 2 and the valve body 1.

[0031] In order to facilitate the operation of the valve core 2, a connection groove 23 is provided on the end surface of the valve core 2 away from the valve body 1. The valve core 2 can be conveniently adjusted by inserting a tool into the connection groove 23.

[0032] The top head 3 is located at the opening of the oil return passage 21 of the valve core 2;

[0033] In this embodiment, the end of the plug 3 facing the oil inlet and outlet 12 is chamfered and provided with a plurality of V-shaped oil inlet notches 31 evenly spaced along the circumference of the plug 3. The provision of the oil inlet notches 31 can more precisely control the flow rate of the oil inlet.

[0034] Preferably, the inner wall of one end of the plug 3 facing the valve body 1 is chamfered, and the inner diameter of the valve body 1 is smaller than the diameter of the steel ball 4, and the outer diameter of the valve body 1 is larger than the diameter of the steel ball 4, so as to better cooperate with the steel ball 4 and improve the sealing effect.

[0035] The steel ball 4 is disposed between the plug 3 and the oil return passage 21 and is used to block and open the plug 3 and the oil return passage 21;

[0036] The elastic reset member 5 is arranged between the steel ball 4 and the inner end surface of the oil return channel 21;

[0037] In this embodiment, the elastic reset member 5 is a common spring, and a spring treated with corrosion and rust resistance may be selected.

[0038] The fixing ring 6 is arranged at the oil inlet and outlet 12 of the valve body 1, and at least part of the fixing ring 6 is located outside the valve body 1. In this way, it can be applied to various structures and can be installed on various pipe openings, expanding the application scope of the present application. Moreover, the fixing ring 6 can better cooperate with the mandrel 3 to realize the oil inlet flow control.

[0039] Example 2

[0040] like Figure 2 As shown, in order to achieve reflux flow control and unrestricted oil inlet, a simple change can be made on the basis of Example 1, that is, the return oil channel 21 of the valve body 1 is changed so that the installation directions of the steel ball 4 and the spring are opposite. In this way, the steel ball 4 will be pushed open when the oil is inlet, so that the return oil channel 21 of Example 1 becomes the oil inlet channel 13 and will not be restricted, and the original oil inlet channel 13 becomes the return oil channel 21. Restricted by the movement of the valve core 2, the size of the oil inlet and outlet 12 can be adjusted by the valve core 2 to achieve flow regulation, thereby achieving reflux flow control and unrestricted oil inlet, and the remaining parts do not need to be changed or changed too much.

[0041] The parts not described in detail in this application are prior art, so this application does not describe them in detail.

[0042] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0043] Although this article uses more terms such as valve body 1, valve core 2, top head 3, steel ball 4, elastic reset member 5, fixing ring 6, nut 7, sealing ring 8, oil hole 11, oil inlet and outlet 12, oil inlet channel 13, oil return channel 21, oil return hole 2211, connecting groove 23, oil inlet notch 31, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of this application; interpreting them as any additional restrictions is contrary to the spirit of this application.

[0044] The present application is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present application. However, no matter what changes are made in the shape or structure, any technical solution that is the same or similar to that of the present application falls within the protection scope of the present application.

Claims

1. A throttle valve, characterized in that: include: The valve body is hollow, with multiple oil holes on the side and oil inlet and outlet ports at the front end; A valve core is at least partially disposed in the valve body, one end of which is threadedly connected to the rear end inner wall of the valve body, and the other end is located in the oil inlet and outlet of the valve body, and an oil inlet channel is formed between the outer wall of the valve core and the inner wall of the valve body; the size of the opening of the oil inlet channel can be adjusted by adjusting the position of the valve core in the valve body; and an oil return channel and an oil return hole are provided in the valve core, and the oil return hole is communicated with the oil inlet channel; A top head, located at the opening of the oil return passage of the valve core; A steel ball is disposed between the plug and the oil return passage, and is used to block and open the space between the plug and the oil return passage; The elastic reset member is arranged between the steel ball and the inner end surface of the oil return channel.

2. The throttle valve according to claim 1, characterized in that: It also includes a fixing ring arranged at the oil inlet and outlet of the valve body, and the fixing ring is at least partially located outside the valve body.

3. The throttle valve according to claim 1, characterized in that: One end of the top head facing the oil inlet and outlet is provided with a chamfer and a plurality of oil inlet notches.

4. The throttle valve according to claim 3, characterized in that: The oil inlet notches are evenly spaced along the circumferential direction of the mandrel.

5. The throttle valve according to claim 3, characterized in that: The oil inlet notch is a V-shaped structure.

6. The throttle valve according to claim 1, characterized in that The oil return holes are evenly spaced along the circumferential direction of the valve core.

7. The throttle valve according to claim 1, characterized in that A sealing ring is arranged between the valve core and the valve body.

8. The throttle valve according to any one of claims 1 to 7, characterized in that: It also includes a nut, which is arranged on the portion of the valve core exposed from the valve body and is used to fix and seal the valve core.

9. The throttle valve according to any one of claims 1 to 7, characterized in that: A connecting groove is provided on an end surface of the valve core away from the valve body.

10. The throttle valve according to any one of claims 1 to 7, characterized in that: The inner wall of one end of the top head facing the valve body is provided with a chamfer, and the inner diameter of the valve body is smaller than the diameter of the steel ball, and the outer diameter of the valve body is larger than the diameter of the steel ball.

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