H-shaped valve and assembling tool

Abstract

The utility model discloses an H-shaped valve and an assembling tool, and relates to the technical field of valves, the H-shaped valve comprises a valve body and two valve balls arranged in the valve body, the periphery of each valve ball is respectively provided with three first valve seats, the H-shaped valve further comprises a second valve seat and an adjusting piece, the second valve seat is arranged in the valve body, and the adjusting piece is arranged on the valve body. Each second valve seat is opposite to one first valve seat on the periphery of one valve ball, and the adjusting piece is arranged on one side of the second valve seat and can drive the second valve seat to move in the first direction. Through the arrangement of the second valve seat and the adjusting piece, the adjusting piece can drive the second valve seat to move, abut against the valve ball and be matched with the other three first valve seats, the adjusting piece can act on the ball valve in four directions, deformation force borne by the ball valve by the valve seats can be offset mutually, the balance state is achieved, the situation that the ball valve tends to deviate towards one side is avoided, and the service life of the ball valve is prolonged. Therefore, the condition of internal leakage caused by long-time use of the ball valve is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an H-shaped valve and an assembly tool. Background Art

[0002] Since the traditional H-shaped valve leaves the foundry, its function has been limited by its own structure. Users select different H-shaped valves according to the specific usage environment for control, and the practicability of the H-shaped valve is not high.

[0003] There are mainly two forms of the existing H-shaped valves. Refer to Figure 1 As shown, the first type of H-shaped valve is composed of three ball valves. However, this type of product has many connection points and uses a lot of materials. Refer to Figures 2-4 As shown, the second type is an H-shaped valve with an integral body. Due to structural limitations, this type of valve uses two three-way ball valves, and each sphere is equipped with three valve seats. When the valve seats are deformed by force, a force will be generated on the sphere. However, this structure will cause the fourth valve seat to be unable to be installed. When the three valve seats are deformed by force, one of the forces will inevitably not be offset, and this force will act on the ball valve, causing the ball valve to tend to deviate to one side. During long-term use, internal leakage is likely to occur. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an H-shaped valve and an assembly tool to solve the above technical problems.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An H-shaped valve includes a valve body and two valve balls installed in the valve body. Three first valve seats are respectively arranged around each valve ball. The H-shaped valve further includes second valve seats and adjusting members. The second valve seats are arranged in the valve body, and each second valve seat is respectively opposite to one of the first valve seats around one of the valve balls. The adjusting members are arranged on one side of the second valve seats, and the adjusting members can drive the second valve seats to move along a first direction.

[0007] Preferably, the adjusting members include adjusting plugs, and internal threads matched with the adjusting plugs are arranged on the inner wall of the valve body.

[0008] As a further preference, external threads matched with the internal threads are arranged on the outer peripheral wall of the adjusting plugs, and limiting holes are opened on the adjusting plugs.

[0009] Preferably, the valve body includes two first valve bodies and a connecting pipe for connecting the two first valve bodies. The second valve seats and the adjusting members are arranged in the connecting pipe.

[0010] As a further preference, it further includes a rotating shaft. A valve ball is respectively arranged in each of the first valve bodies. A rotating shaft is respectively arranged in each of the valve bodies, and the rotating shaft is connected to the valve ball.

[0011] As a further preference, it further includes a valve cover, a union nut, a gasket and a circlip. A valve cover is respectively arranged at one end of each of the first valve bodies. A union nut is arranged at the end of the valve cover away from the first valve body. A circlip is arranged between the union nut and the valve cover. A gasket is arranged inside the union nut, and the gasket abuts against the valve cover.

[0012] As a further preference, it further includes a first O-ring, and the first O-ring is arranged between the rotating shaft and the first valve body.

[0013] As a further preference, it further includes a handle and a plug. The handle is connected to the rotating shaft, and the plug is arranged on one side of the first valve body.

[0014] An assembly tool for driving an adjusting plug to move in a first direction includes a wrench assembly. The wrench assembly includes a connecting rod, a limiting head, a limiting sleeve and a connecting head. The limiting head is arranged at one end of the connecting rod, and the limiting head is matched with a limiting hole on the adjusting plug. The connecting head is arranged at the other end of the connecting rod. The limiting sleeve is arranged on the outer edge of the connecting rod, and the connecting rod is in limiting cooperation with the adjusting plug.

[0015] As a further preference, it further includes a retaining ring. The retaining ring is arranged on the outer edge of the connecting rod and can abut against the limiting sleeve.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] In the present utility model, through the arrangement of the second valve seat and the adjusting member, the adjusting member can drive the second valve seat to move, press against the valve ball, and cooperate with the other three first valve seats, so that the valve seat can act on the ball valve from four directions, enabling the deformation forces received by the ball valve from the valve seats to cancel each other out and reach a balanced state, avoiding the tendency of the ball valve to deviate to one side, and thus avoiding the occurrence of internal leakage after long-term use of the ball valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of an H-type valve in the prior art Figure 1 ;

[0019] Figure 2 is a schematic structural view of an H-type valve in the prior art Figure 2 ;

[0020] Figure 3 is Figure 2Cross-sectional view taken along line A-A;

[0021] Figure 4 It is a schematic diagram of a ball valve in the prior art under the deformation forces of three valve seats;

[0022] Figure 5 It is a schematic diagram of the structure of the H-shaped valve in the present invention;

[0023] Figure 6 It is Figure 5 Cross-sectional view taken along line B-B;

[0024] Figure 7 It is Figure 5 Cross-sectional view taken along line C-C;

[0025] Figure 8 It is a schematic diagram of the structure of the assembly tool in the present invention;

[0026] Figure 9 It is a schematic diagram of the structure of the assembly tool in the working state;

[0027] Figure 10 It is a schematic diagram of a ball valve in the present invention under the deformation forces of four valve seats.

[0028] In the figure: 1. Valve ball; 2. First valve seat; 3. Second valve seat; 4. Adjusting member; 5. Limit hole; 6. First valve body; 7. Connecting pipe; 8. Rotating shaft; 9. Valve cover; 10. Joint nut; 11. Gasket; 12. Wire snap ring; 13. First O-ring; 14. Second O-ring; 15. Handle; 16. Plug; 17. Wrench assembly; 18. Connecting rod; 19. Limit head; 20. Limit sleeve; 21. Connector; 22. Retaining ring. Detailed implementation manners

[0029] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] In the description of the present utility model, it should be noted that when terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, when terms such as "first", "second", "third" appear, they are only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, when terms such as "installation", "connection", "coupling" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Figure 5 is a schematic structural view of the H-type valve in the present utility model; Figure 6 is Figure 5 the sectional view taken along the line B-B in Figure 7 is Figure 5 the sectional view taken along the line C-C in Figure 8 is a schematic structural view of the assembly tool in the present utility model; Figure 9 is a schematic structural view of the assembly tool in the using state in the present utility model; Figure 10 is a schematic view of the ball valve in the present utility model under the deformation forces of four valve seats. Please refer to Figures 5 to 10 As shown, a preferred embodiment is shown. An H-type valve is shown, which includes a valve body and two valve balls 1 installed in the valve body. Three first valve seats 2 are respectively arranged around each valve ball 1. It also includes second valve seats 3 and an adjusting member 4. The second valve seats 3 are arranged in the valve body, and each second valve seat 3 is respectively opposite to one of the first valve seats 2 around a valve ball 1. The adjusting member 4 is arranged on one side of the second valve seat 3, and the adjusting member 4 can drive the second valve seat 3 to move in the first direction. In this embodiment, refer to Figure 6 and Figure 7As shown, the second valve seat 3 is in the first direction with one of the first valve seats 2, and the other two first valve seats 2 are in the second direction. The first direction and the second direction are in the same plane, and the first direction is perpendicular to the second direction. The other two first valve seats 2 are arranged opposite to each other, and the acting forces (deformation forces) on the valve ball 1 generated between them can cancel each other out. The acting forces of the second valve seat 3 and one of the first valve seats 2 on the valve ball 1 can cancel each other out, thus avoiding the tendency of the valve ball 1 to deviate to one side and preventing internal leakage from occurring during long-term use of the ball valve.

[0033] The installation positions and installation methods of the two valve balls 1 in the valve body in this embodiment are all prior arts and will not be specifically described here.

[0034] Among them, the adjusting member 4 is in threaded cooperation with the inner wall of the valve body and is used to drive the second valve seat to move in the first direction, so that the second valve seat 3 can squeeze the valve ball 1 or disengage from the valve ball 1.

[0035] In this embodiment, referring to Figure 5 the direction shown, the first direction is Figure 5 the up and down direction shown, and the second direction is Figure 5 the left and right direction shown.

[0036] The valve body in this embodiment is integrally arranged in an H shape and is of an integral structure.

[0037] In this embodiment, both the first valve seat 2 and the second valve seat 3 are sealing rings. The second valve seat 3 can be driven by the adjusting member 4 to move away from the ball valve, which is convenient for the assembly of the two first valve seats 2 in the second direction. The threaded cooperation between the adjusting member 4 and the valve body can prevent the second valve seat 3 from loosening when the first valve seat 2 in the first direction presses the valve ball 1.

[0038] Further, as a preferred embodiment, the adjusting member 4 includes an adjusting plug. The inner wall of the valve body is provided with an internal thread that cooperates with the adjusting plug. Among them, the outer peripheral wall of the adjusting plug is provided with an external thread that cooperates with the internal thread, and a limiting hole 5 is opened on the adjusting plug. The adjusting plug in this embodiment is integrally arranged in a ring shape, and the outer peripheral wall of the adjusting plug is in threaded cooperation with the inner wall of the connecting pipe 7 in the valve body. When the adjusting plug is rotated, the adjusting plug can move in the first direction (its own axial direction or the axial direction of the connecting pipe 7), thereby driving the second valve seat 3 to move.

[0039] The limiting hole 5 in this embodiment is opened in the middle of the adjusting plug. The limiting hole 5 can penetrate or not penetrate the adjusting plug, and the specific shape of the adjusting plug can be set as required, such as in a quadrilateral, pentagon, etc.

[0040] Further, as a preferred embodiment, the valve body includes two first valve bodies 6 and a connecting pipe 7 for connecting the two first valve bodies 6. The second valve seat 3 and the adjusting member 4 are disposed within the connecting pipe 7. Among them, the first valve body 6 and the connecting pipe 7 are integrally connected, reducing possible leakage points and reducing the amount of material used. The first valve body 6 and the connecting pipe 7 are distributed in an H shape. A rotating shaft 8 is provided at the upper end of the first valve body 6, and the lower end of the rotating shaft 8 is connected to the valve ball 1. The upper end of the rotating shaft 8 extends out of the first valve body 6 and is connected to the handle 15. The handle 15 and the rotating shaft 8 are connected by bolts / screws. By rotating the handle 15, the rotating shaft 8 can be driven to rotate, so that the rotating shaft 8 drives the ball valve to rotate, thereby realizing the opening or closing of the first valve body 6.

[0041] Further, as a preferred embodiment, it further includes a valve cover 9, a union nut 10, a gasket 11 and a circlip 12. A valve cover 9 is respectively provided at one end of each first valve body 6. A union nut 10 is provided at the end of the valve cover 9 away from the first valve body 6. A circlip 12 is provided between the union nut 10 and the valve cover 9. A gasket 11 is provided inside the union nut 10, and the gasket 11 abuts against the valve cover 9. Refer to Figure 6 As shown, the union nut 10 is provided on the valve cover 9, and the circlip 12 is embedded between the valve cover 9 and the union nut 10. When connecting to an external pipeline, the connection with the external pipeline can be achieved by rotating the union nut 10. The external pipeline can be inserted into the union nut 10 and is threadedly connected to the union nut 10. The end face of the external pipeline can abut against the gasket 11.

[0042] Further, as a preferred embodiment, it further includes a first O-ring 13. A first O-ring 13 is provided between the rotating shaft 8 and the first valve body 6. The provided first O-ring 13 is used for sealing between the rotating shaft 8 and the first valve body 6 to prevent fluid leakage.

[0043] Further, as a preferred embodiment, it further includes a plug 16. The plug 16 is disposed on one side of the first valve body 6. Among them, a second O-ring 14 is provided between the plug 16 and the first valve body 6 for sealing between the plug 16 and the first valve body 6.

[0044] The application scenario of the H-type valve in this embodiment is not limited to the HVAC field. Among them, the switching method between the two valve balls 1 in the valve body is prior art and will not be limited here.

[0045] In this embodiment, refer to Figure 10 As shown, the acting forces of the three first valve seats 2 on the valve ball 1 are F1, F2 and F3, and the acting force of the second valve seat 3 on the valve ball 1 is F4. The acting force F1 can cancel out the acting force F2, and the acting force F3 can cancel out the acting force F4.

[0046] The present utility model further discloses an assembly tool, which is used to cooperate with the adjusting member 4 (adjusting plug), and can drive the adjusting plug to move along the first direction, thereby driving the second valve seat 3 to move along the first direction, so that the second valve seat 3 presses against the valve ball 1 or moves away from the valve ball 1.

[0047] An assembly tool for driving an adjusting plug to move along a first direction, comprising a wrench assembly 17. The wrench assembly 17 includes a connecting rod 18, a limiting head 19, a limiting sleeve 20 and a connecting head 21. One end of the connecting rod 18 is provided with a limiting head 19, and the limiting head 19 is matched with the limiting hole 5 on the adjusting plug. The other end of the connecting rod 18 is provided with a connecting head 21. A limiting sleeve 20 is arranged on the outer edge of the connecting rod 18, and the connecting rod 18 is in limiting cooperation with the adjusting plug. Wherein, a retaining ring 22 is further arranged on the outer edge of the connecting rod 18. The retaining ring 22 can abut against the limiting sleeve 20. The retaining ring 22 is arranged on one side of the limiting sleeve 20. The retaining ring 22 is fixedly connected with the connecting rod 18, while the limiting sleeve 20 is movably connected with the connecting rod 18. A through hole is arranged in the middle of the limiting sleeve 20, and the connecting rod 18 movably passes through the through hole. The limiting sleeve 20 can be removed from the connecting rod 18.

[0048] See Figure 9 As shown, when in use, the limiting sleeve 20 is buckled on one side of the first valve body 6 to temporarily fix the position of the limiting sleeve 20. Then the connecting rod 18 passes through the round hole in the middle of the valve ball 1, and the limiting head 19 enters the limiting hole 5 in the middle of the adjusting plug to realize the limiting cooperation between the limiting head 19 and the adjusting plug. The surface of one end of the connecting rod 18 abuts against one side surface of the adjusting plug to realize the limiting cooperation between the connecting rod 18 and the adjusting plug. At this time, the wrench assembly 17 is already installed in place. Then, by rotating the connecting head 21, the connecting head 21 drives the connecting rod 18 to rotate, the connecting rod 18 drives the limiting head 19 to rotate, and the limiting head 19 can drive the adjusting plug to rotate, so that the adjusting plug moves along the direction close to the valve ball 1, thereby pushing the second valve seat 3 so that the second valve seat 3 abuts against the valve ball 1.

[0049] When the second valve seat 3 moves towards the valve ball 1, the retaining ring 22 on the connecting rod 18 moves towards the direction close to the limiting sleeve 20, that is Figure 9 the left direction shown. When the second valve seat 3 presses against the valve ball 1, the retaining ring 22 can just abut against the limiting sleeve 20. The specific position state between the retaining ring 22 and the limiting sleeve 20 can be seen in Figure 9 shown.

[0050] When the adjusting plug drives the second valve seat 3 to move away from the valve ball 1, the retaining ring 22 will move away from the limiting sleeve 20, that is Figure 9 the right direction shown.

[0051] In this embodiment, the outer diameter of the connecting rod 18 is larger than the inner diameter of the limiting hole 5, which facilitates the limiting fit between the connecting rod 18 and the adjusting plug.

[0052] In this embodiment, the wrench assembly 17 can be rotated manually or connected to an external electric head, and can be driven manually or electrically, and can be specifically selected according to needs.

[0053] In this embodiment, the second valve seat 3 can be assembled first, and then the other three first valve seats 2 can be assembled. The specific assembly sequence can be selected according to needs.

[0054] In this embodiment, the shape of the limiting head 19 matches the shape of the limiting hole 5.

[0055] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention. For those skilled in the art, it should be realized that all equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An H-type valve, comprising a valve body and two valve balls installed in the valve body, and three first valve seats are respectively arranged around each valve ball, characterized in that, It further includes a second valve seat and an adjusting member. The second valve seat is disposed in the valve body. Each of the second valve seats is respectively opposite to one of the first valve seats surrounding the valve ball. The adjusting member is disposed on one side of the second valve seat, and the adjusting member can drive the second valve seat to move in the first direction.

2. The H-type valve according to claim 1, characterized in that, The adjusting member includes an adjusting plug, and internal threads matching the adjusting plug are provided on the inner wall of the valve body.

3. The H-type valve according to claim 2, wherein, External threads matching the internal threads are provided on the outer peripheral wall of the adjusting plug, and a limiting hole is formed in the adjusting plug.

4. The H-type valve according to claim 1, wherein The valve body includes two first valve bodies and a connecting pipe for connecting the two first valve bodies. The second valve seat and the adjusting member are disposed in the connecting pipe.

5. The H-type valve according to claim 4, wherein It further includes a rotating shaft. Each of the first valve bodies is respectively provided with a valve ball, and each of the valve bodies is respectively provided with a rotating shaft. The rotating shaft is connected to the valve ball.

6. The H-type valve according to claim 4, characterized in that, It further includes a valve cover, a union nut, a gasket and a circlip. Each of the first valve bodies is respectively provided with a valve cover at one end. The union nut is provided at the end of the valve cover away from the first valve body. The circlip is provided between the union nut and the valve cover. The gasket is provided inside the union nut, and the gasket abuts against the valve cover.

7. The H-type valve according to claim 5, wherein It further includes a first O-ring. The first O-ring is provided between the rotating shaft and the first valve body.

8. The H-type valve according to claim 5, wherein It further includes a handle and a plug. The handle is connected to the rotating shaft, and the plug is disposed on one side of the first valve body.

9. An assembly tool for driving an adjusting plug to move in a first direction, characterized in that, It includes a wrench assembly. The wrench assembly includes a connecting rod, a limiting head, a limiting sleeve and a connecting head. The limiting head is provided at one end of the connecting rod. The limiting head is matched with the limiting hole on the adjusting plug. The connecting head is provided at the other end of the connecting rod. The limiting sleeve is provided on the outer edge of the connecting rod. The connecting rod is in limit cooperation with the adjusting plug.

10. The assembly tool according to claim 9, characterized in that, It further includes a retaining ring. The retaining ring is provided on the outer edge of the connecting rod and can abut against the limiting sleeve.

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