Valve element assembly suitable for high-pressure environment

Abstract

The utility model discloses a valve core assembly suitable for a high pressure environment, which relates to the technical field of valve core assemblies and comprises a valve body, a rotating shaft is rotatably mounted at the top of the valve body, a hand wheel is fixed at the top end of the rotating shaft, a horizontal storage box is fixed on the side surface of the rotating shaft, and one end of the storage box extends out of the outer side of the hand wheel. A storage groove is formed in the upper end face of the first-stage extension handle, and a second-stage extension handle is movably installed at the end, away from the storage box, in the storage groove through a torque spring. A vertical positioning bolt is elastically installed at the lower end of the fixing cylinder, and a positioning hole is formed in the position, corresponding to the lower end of the positioning bolt, of the upper end face of the valve body. The valve is reasonable in structure and simple in force arm extension structure, a user can operate opening and closing of the valve body in a more labor-saving mode, when the force arm is held, the limiting mechanism can be conveniently and smoothly operated, operation is easy, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the field of valve core assembly technology, and in particular to a valve core assembly suitable for high-pressure environments. Background Technology

[0002] Valves are pipeline accessories used to open and close pipelines, control flow direction, and regulate and control the parameters of the transported medium. Based on their function, they can be classified as shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid transport systems, possessing functions such as shut-off, regulation, flow diversion, backflow prevention, pressure stabilization, flow splitting, or overflow pressure relief.

[0003] Currently, Chinese patent CN219866373U discloses a high-pressure ball valve that increases the handle length to change the lever arm, thereby saving effort and increasing the rotational force. This solves the problem that traditional high-pressure valves have high torque and are difficult to open and close when used in high-pressure media environments.

[0004] However, the existing technology has an overly complex telescopic handle structure, which is inconvenient to use in practice. It also has a flexible pin for limiting the turntable, which needs to be continuously pressed down to separate from the hole on the lower end of the turntable during actual use. Otherwise, it will affect the rotation of the turntable. This means that the operator needs to free up one hand to operate it, which is inconvenient to use.

[0005] Therefore, this application provides a valve core assembly suitable for high-pressure environments to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this application is to provide a valve core assembly suitable for high-pressure environments. The lever arm extension structure is simple, which makes it easier for users to operate the valve body opening and closing with less effort. When holding the lever arm, it is convenient to operate the limit mechanism. The operation is simple and easy to use.

[0007] To achieve the above objectives, this application provides the following technical solution: a valve core assembly suitable for high-pressure environments, comprising a valve body, a rotating shaft rotatably mounted on the top of the valve body, a handwheel fixed to the top of the rotating shaft, a horizontal storage box fixed to the side of the rotating shaft, one end of the storage box extending out of the outside of the handwheel and horizontally inserted with a primary extension handle, a storage groove formed on the upper end face of the primary extension handle, and a secondary extension handle movably mounted in the storage groove at the end away from the storage box via a torque spring.

[0008] As a further preferred embodiment, a fixing cylinder is fixed to the lower end face of the handwheel, and a vertical positioning pin is elastically installed at the lower end of the fixing cylinder. A positioning hole is opened on the upper end face of the valve body corresponding to the lower end of the positioning pin.

[0009] As a further preferred embodiment, a drive plate that is horizontally parallel to the storage box is fixed to the side of the positioning pin.

[0010] As a further preferred embodiment, the bottom sides of the valve body are symmetrically fixed with connecting pipes, and the end of the connecting pipes away from the valve body is fixed with a fixing flange.

[0011] As a further preferred embodiment, one end of the primary extension handle inserted into the storage box is symmetrically provided with anti-detachment protrusions, which are slidably positioned inside the storage box.

[0012] As a further preferred embodiment, a pull tab is fixed to the end of the primary extension handle away from the storage box, and the pull tab is located on the lower end face of the primary extension handle.

[0013] As a further preferred embodiment, the top end of the positioning pin is provided with a fixing groove, a return spring is fixed in the fixing groove, and the top end of the return spring is fixed inside the fixing cylinder.

[0014] In summary, the technical effects and advantages of this utility model are as follows:

[0015] 1. This utility model benefits from the cooperation of the handwheel, storage box, primary extension handle and secondary extension handle. After the primary extension handle extends out of the end of the storage box, the primary extension handle loses the limitation of the inner top wall of the storage box and automatically unfolds the secondary extension handle. This makes the storage box, primary extension handle and secondary extension handle form a longer lever arm, which makes it easier for users to open and close valves used in high-pressure media environments. The overall structure is simple and easy to use.

[0016] 2. Thanks to the cooperation of the fixed cylinder, positioning pin, drive plate and positioning hole, this utility model allows the user to easily lift the drive plate and fit it together with the lever arm formed by the storage box, the first-level extension handle and the second-level extension handle while holding the lever arm. At this time, the positioning pin disengages from the positioning hole, which facilitates the rotation of the rotating shaft. After the drive plate is released, the positioning pin will be reset by the action of the return spring to align with the positioning hole and form a fixed position, which can prevent the rotating shaft from loosening and has a good performance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the primary extension handle and the secondary extension handle of this utility model.

[0020] Figure 3 This is a schematic diagram of the structure of the rotating shaft of this utility model;

[0021] Figure 4 This is a schematic diagram of the positioning pin of this utility model.

[0022] In the diagram: 1. Valve body; 2. Connecting pipe; 201. Fixed flange; 3. Rotating shaft; 4. Handwheel; 5. Storage box; 6. Primary extension handle; 601. Storage slot; 602. Anti-detachment protrusion; 603. Pull lug; 7. Secondary extension handle; 8. Fixed cylinder; 9. Positioning pin; 901. Drive plate; 902. Fixed slot; 903. Return spring; 10. Positioning hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Reference Figure 1 and Figure 2 The valve core assembly shown is suitable for high-pressure environments and includes a valve body 1. A connecting pipe 2 is symmetrically fixed on both sides of the bottom of the valve body 1. A fixing flange 201 is fixed at the end of the connecting pipe 2 away from the valve body 1, which can be used to connect to a high-pressure medium pipeline.

[0025] A rotating shaft 3 is rotatably mounted on the top of the valve body 1. A handwheel 4 is fixed to the top of the rotating shaft 3. A horizontal storage box 5 is fixed to the side of the rotating shaft 3. One end of the storage box 5 extends out of the outside of the handwheel 4 and is horizontally inserted into a primary extension handle 6. A storage groove 601 is opened on the upper end face of the primary extension handle 6. A secondary extension handle 7 is movably mounted in the storage groove 601 away from the storage box 5 through a torque spring. This allows the primary extension handle 6 to be extended from the storage box 5 for primary extension. At this time, the secondary extension handle 7 loses the restriction of the storage box 5, and the secondary extension handle 7 will pop out from the storage groove 601 under the action of the torque spring and unfold horizontally to form a secondary extension. This makes the storage box 5, the primary extension handle 6, and the secondary extension handle 7 form a lever arm for easy gripping and effortless operation.

[0026] In this specific implementation, the end of the primary extension handle 6 inserted into the storage box 5 is symmetrically equipped with anti-detachment protrusions 602. The anti-detachment protrusions 602 are slidably placed inside the storage box 5 to prevent the primary extension handle 6 from slipping out of the storage box 5. The end of the primary extension handle 6 away from the storage box 5 is fixed with a pull ear 603. The pull ear 603 is located on the lower end face of the primary extension handle 6, which allows the user to easily pull the primary extension handle 6 out of the storage box 5.

[0027] refer to Figure 1 , Figure 3 and Figure 4 As shown, a fixing cylinder 8 is fixed to the lower end face of the handwheel 4, and a vertical positioning pin 9 is elastically installed at the lower end of the fixing cylinder 8. A positioning hole 10 is opened on the upper end face of the valve body 1 corresponding to the lower end of the positioning pin 9. In a specific implementation, a fixing groove 902 is provided at the top end of the positioning pin 9, and a return spring 903 is fixed in the fixing groove 902, with the top end of the return spring 903 fixed inside the fixing cylinder 8.

[0028] Meanwhile, a drive plate 901, which is horizontally parallel to the storage box 5, is fixed on the side of the positioning pin 9. This allows the user to lift the drive plate 901 to move the positioning pin 9 upward when holding the storage box 5, the first-level extension handle 6, and the second-level extension handle 7 to form a lever arm, so as to release the positioning pin 9 from the positioning hole 10.

[0029] The working principle of this utility model is as follows: When using this valve core assembly suitable for high-pressure environments, the first-stage extension handle 6 can be extended from the end of the storage box 5 by pulling the lug 603. After the first-stage extension handle 6 is extended, it loses the restriction of the inner top wall of the storage box 5, and the second-stage extension handle 7 in the storage groove 601 will automatically unfold horizontally, so that the storage box 5, the first-stage extension handle 6 and the second-stage extension handle 7 form a longer lever arm, thereby making it easier for users to open and close the valve body 1 in high-pressure media environments, which is convenient to use.

[0030] Meanwhile, when the user holds the lever arm formed by the storage box 5, the first-level extension handle 6, and the second-level extension handle 7, the drive plate 901 can be easily lifted and aligned with the lever arm. At this time, the positioning pin 9 disengages from the positioning hole 10, making it easy to rotate the rotating shaft 3. After the operation is completed, when the drive plate 901 is released, the positioning pin 9 will be reset under the action of the return spring 903 to align with the positioning hole 10 and form a fixed position, which can prevent the rotating shaft 3 from loosening and has a good performance.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A valve core assembly suitable for high-pressure environments, comprising a valve body (1), wherein a rotating shaft (3) is rotatably mounted on the top of the valve body (1), and a handwheel (4) is fixed to the top of the rotating shaft (3), characterized in that: A horizontal storage box (5) is fixed to the side of the rotating shaft (3). One end of the storage box (5) extends out of the outside of the handwheel (4) and is horizontally inserted with a first-stage extension handle (6). A storage groove (601) is opened on the upper end face of the first-stage extension handle (6). A second-stage extension handle (7) is movably installed in the storage groove (601) away from the storage box (5) through a torque spring.

2. A valve core assembly suitable for high-pressure environments according to claim 1, characterized in that: The lower end face of the handwheel (4) is fixed with a fixing cylinder (8), and the lower end of the fixing cylinder (8) is elastically installed with a vertical positioning pin (9). The upper end face of the valve body (1) is provided with a positioning hole (10) corresponding to the lower end of the positioning pin (9).

3. A valve core assembly suitable for high-pressure environments according to claim 1, characterized in that: A drive plate (901) that is horizontally parallel to the storage box (5) is fixed to the side of the positioning pin (9).

4. A valve core assembly suitable for high-pressure environments according to claim 1, characterized in that: The valve body (1) has connecting pipes (2) symmetrically fixed on both sides of its bottom. The end of the connecting pipe (2) away from the valve body (1) is fixed with a fixing flange (201).

5. A valve core assembly suitable for high-pressure environments according to claim 1, characterized in that: One end of the primary extension handle (6) inserted into the storage box (5) is symmetrically constructed with anti-detachment protrusions (602), and the anti-detachment protrusions (602) are slidably placed inside the storage box (5).

6. A valve core assembly suitable for high-pressure environments according to claim 1, characterized in that: A pull tab (603) is fixed to one end of the first-stage extension handle (6) away from the storage box (5), and the pull tab (603) is located on the lower end face of the first-stage extension handle (6).

7. A valve core assembly suitable for high-pressure environments according to claim 1, characterized in that: The top end of the positioning pin (9) is provided with a fixing groove (902), and a return spring (903) is fixed in the fixing groove (902), and the top end of the return spring (903) is fixed in the fixing cylinder (8).

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