Valve with pressure reduction function

Abstract

The utility model relates to the technical field of valves, and discloses a valve with a pressure reduction function, which comprises a valve body, a circulation hole is arranged inside the valve body, the inner wall of the circulation hole is fixedly connected with a valve seat, the inner wall of the valve seat is fitted with a valve core, the upper surface of the valve core is fixedly connected with a valve rod, and the surface of the valve rod is contacted with the inner wall of the valve body. A valve cover is fixedly connected to the upper surface of the valve body, a round hole is formed in the upper surface of the valve cover, a first strip-shaped hole is formed in the surface of the valve cover, and adjusting supports are arranged on the inner wall of the round hole and the upper surface of the valve cover in an attached mode. The four springs are arranged on the traction support, each spring can be independently separated from or connected with the adjusting support through matching of the connecting support and the connecting column, and then the pressure adjusting range of the valve can be changed by changing the number of the springs connected with the adjusting support. Therefore, the application range of the valve is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve with a pressure reducing function. Background Art

[0002] At present, valves with pressure reducing function on the market are composed of valve body, valve seat, valve core, valve stem, valve cover, spring and adjusting bracket, etc., wherein the valve core and valve seat are in close contact through the pulling force of the spring on the valve stem, and the flow hole in the valve body is closed through the cooperation of the valve core and the valve seat. When the liquid pressure in the valve body is greater than the pulling force of the spring on the valve stem, the valve core and valve seat are separated and the flow hole is opened through the pressure of the liquid on the valve core. At this time, the liquid can pass through the valve and reduce the hydraulic pressure at the valve outlet. For example, a pressure reducing valve disclosed in Chinese Patent Publication No. CN208719476U, but the number of springs on the valve stem is fixed, and the pressure adjustment range of the valve cannot be changed, resulting in a smaller application range of the valve. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings existing in the prior art, such as: at present, the valve with pressure reducing function on the market is composed of components such as valve body, valve seat, valve core, valve stem, valve cover, spring and adjustment bracket, but because the number of springs on the valve stem is fixed, the pressure adjustment range of the valve cannot be changed, resulting in a smaller application range of the valve, and a valve with pressure reducing function is proposed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A valve with a pressure reducing function comprises a valve body, a flow hole is provided inside the valve body, a valve seat is fixedly connected to the inner wall of the flow hole, a valve core is fitted on the inner wall of the valve seat, a valve stem is fixedly connected to the upper surface of the valve core, the surface of the valve stem contacts the inner wall of the valve body, a valve cover is fixedly connected to the upper surface of the valve body, a circular hole is provided on the upper surface of the valve cover, a first strip hole is provided on the surface of the valve cover, an adjusting bracket is fitted on the inner wall of the circular hole and the upper surface of the valve cover, a connecting bracket is fixedly connected to the surface of the adjusting bracket, the surface of the connecting bracket contacts the inner wall of the first strip hole, a second strip hole is provided on the surface of the valve cover, a traction bracket is fitted on the inner wall of the second strip hole and the inner wall of the connecting bracket, and the bottom of the traction bracket is fixedly connected to the upper surface of the valve stem.

[0006] Preferably, the adjusting bracket includes a first transverse plate, the surface of the first transverse plate is fixedly connected to the surface of the connecting bracket, the upper surface of the first transverse plate is fixedly connected with a bolt, the surface of the bolt is threadedly connected with a nut, and the bottom of the nut is in contact with the upper surface of the valve cover.

[0007] Preferably, the connecting bracket includes a first slip ring, the surface of the first slide plate is fixedly connected to the surface of the first cross plate, the inner wall of the first slide plate contacts the inner wall of the first strip hole, a rectangular hole is opened inside the first slide plate, a cylinder is fixedly connected to the inner wall of the rectangular hole, a flip plate is fitted on the surface of the cylinder and the inner wall of the rectangular hole, a hook is fixedly connected to the bottom of the flip plate, and the inner wall of the hook contacts the surface of the traction bracket.

[0008] Preferably, the traction bracket includes a second transverse plate, the bottom of the second transverse plate is fixedly connected to the upper surface of the valve stem, the surface of the second transverse plate is fixedly connected to a second slide plate, the surface of the second slide plate contacts the inner wall of the second strip hole, the upper surface of the second slide plate is fixedly connected to a spring, the surface of the spring is fixedly connected to a cylinder, the inner wall of the cylinder is fixedly connected to a connecting column, and the surface of the connecting column contacts the inner wall of the hook.

[0009] Preferably, a U-shaped plate is fixedly connected to the upper surface of the valve cover, an L-shaped plate is fitted on the inner wall of the U-shaped plate, a groove is opened on the left side of the L-shaped plate, a U-shaped rubber strip is bonded to the bottom of the L-shaped plate, the bottom of the U-shaped rubber strip is in contact with the upper surface of the nut, the inner wall of the groove is in contact with the surface of the bolt, a magnetic block is fitted on the left side of the L-shaped plate, and the bottom of the magnetic block is fixedly connected to the upper surface of the valve cover.

[0010] Preferably, the number of the springs is four, and the four springs are symmetrically distributed with the valve cover as the center.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model arranges four springs on the traction bracket, and through the cooperation of the connecting bracket and the connecting column, each spring can be separated from or connected to the adjustment bracket individually, and then by changing the number of springs connected to the adjustment bracket, the pressure adjustment range of the valve can be changed, thereby improving the application range of the valve.

[0013] (2) The utility model provides a U-shaped plate, an L-shaped plate, a groove, a U-shaped rubber strip and a magnetic block. When the L-shaped plate contacts the magnetic block, the magnetic block can attract the L-shaped plate to fix the L-shaped plate in the U-shaped plate, and make the U-shaped rubber strip and the nut in close contact. At this time, the friction between the U-shaped rubber strip and the nut can prevent the nut from rotating easily after being vibrated, thereby preventing the tension on the valve core from changing due to the vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 It is a schematic diagram of the interior of the valve body in the utility model;

[0017] Figure 4 It is a schematic diagram of the interior of the valve cover in the utility model;

[0018] Figure 5 It is a front view of the adjusting bracket in the utility model;

[0019] Figure 6 It is a schematic diagram of the connecting bracket in the utility model;

[0020] Figure 7 It is a front view of the traction bracket in the utility model;

[0021] Figure 8 It is a bottom view of the U-shaped plate in the utility model;

[0022] Fig. 9 It is a bottom view of the L-shaped plate in the utility model;

[0023] Fig.10 It is a top view of the U-shaped rubber strip in the utility model.

[0024] In the figure: 1. valve body; 2. flow hole; 3. valve seat; 4. valve core; 5. valve stem; 6. valve cover; 7. round hole; 8. first strip hole; 9. adjustment bracket; 91. first horizontal plate; 92. bolt; 93. nut; 10. connecting bracket; 101. first slide plate; 102. rectangular hole; 103. cylinder; 104. flip plate; 105. hook; 11. second strip hole; 12. traction bracket; 121. second horizontal plate; 122. second slide plate; 123. spring; 124. cylinder; 125. connecting column; 13. U-shaped plate; 14. L-shaped plate; 15. groove; 16. U-shaped rubber strip; 17. magnetic block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] Embodiment 1:

[0028] Reference Figure 1-7 A valve with a pressure reducing function comprises a valve body 1, a flow hole 2 is opened inside the valve body 1, a valve seat 3 is fixedly connected to the inner wall of the flow hole 2, a valve core 4 is fitted on the inner wall of the valve seat 3, when the valve seat 3 is in close contact with the valve core 4, the flow hole 2 can be closed by the cooperation of the valve seat 3 and the valve core 4, when the valve seat 3 is separated from the valve core 4, the flow hole 2 is opened, a valve stem 5 is fixedly connected to the upper surface of the valve core 4, the surface of the valve stem 5 is in contact with the inner wall of the valve body 1, and a valve cover 6 is fixedly connected to the upper surface of the valve body 1, A circular hole 7 is provided on the upper surface of the valve cover 6, a first strip hole 8 is provided on the surface of the valve cover 6, an adjusting bracket 9 is fitted on the inner wall of the circular hole 7 and the upper surface of the valve cover 6, a connecting bracket 10 is fixedly connected to the surface of the adjusting bracket 9, and the surface of the connecting bracket 10 contacts the inner wall of the first strip hole 8, a second strip hole 11 is provided on the surface of the valve cover 6, a traction bracket 12 is fitted on the inner wall of the second strip hole 11 and the inner wall of the connecting bracket 10, and the bottom of the traction bracket 12 is fixedly connected to the upper surface of the valve stem 5.

[0029] The adjusting bracket 9 includes a first transverse plate 91, the surface of which is fixedly connected to the surface of the connecting bracket 10, the upper surface of the first transverse plate 91 is fixedly connected with a bolt 92, the surface of the bolt 92 is threadedly connected with a nut 93, the bottom of the nut 93 is in contact with the upper surface of the valve cover 6, and through the cooperation of the bolt 92 and the nut 93, the user can change the position of the first transverse plate 91 by rotating the nut 93.

[0030] The connecting bracket 10 includes a first slip ring, the surface of the first slide plate 101 is fixedly connected to the surface of the first cross plate 91, the inner wall of the first slide plate 101 contacts the inner wall of the first strip hole 8, a rectangular hole 102 is opened inside the first slide plate 101, the inner wall of the rectangular hole 102 is fixedly connected to a cylinder 103, the surface of the cylinder 103 and the inner wall of the rectangular hole 102 are both fitted with a flip plate 104, the bottom of the flip plate 104 is fixedly connected to a hook 105, the inner wall of the hook 105 contacts the surface of the traction bracket 12, when the user pushes the flip plate 104, the cooperation of the flip plate 104 and the cylinder 103 can make the hook 105 rotate and separate from the traction bracket 12.

[0031] The traction bracket 12 includes a second transverse plate 121, the bottom of which is fixedly connected to the upper surface of the valve stem 5, the surface of the second transverse plate 121 is fixedly connected to a second slide plate 122, the surface of the second slide plate 122 contacts the inner wall of the second strip hole 11, the upper surface of the second slide plate 122 is fixedly connected to a spring 123, the number of springs 123 is four, and the four springs 123 are symmetrically distributed with the valve cover 6 as the center, the surface of the spring 123 is fixedly connected to a cylinder 124, the inner wall of the cylinder 124 is fixedly connected to a connecting column 125, the surface of the connecting column 125 contacts the inner wall of the hook 105, when the connecting column 125 is hung on the hook 105, the spring 123 is connected to the adjusting bracket 9 through the cooperation of the connecting column 125 and the hook 105, and when the hook 105 is separated from the connecting column 125, the spring 123 is separated from the adjusting bracket 9.

[0032] Embodiment 2:

[0033] Reference Figure 1-10 The upper surface of the valve cover 6 is fixedly connected with a U-shaped plate 13, and the inner wall of the U-shaped plate 13 is fitted with an L-shaped plate 14. A groove 15 is opened on the left side of the L-shaped plate 14, and a U-shaped rubber strip 16 is bonded to the bottom of the L-shaped plate 14. The bottom of the U-shaped rubber strip 16 contacts the upper surface of the nut 93, and the inner wall of the groove 15 contacts the surface of the bolt 92. A magnetic block 17 is fitted on the left side of the L-shaped plate 14, and the bottom of the magnetic block 17 is fixedly connected to the upper surface of the valve cover 6. When the L-shaped plate 14 contacts the magnetic block 17, the suction force of the magnetic block 17 on the L-shaped plate 14 can fix the L-shaped plate 14 in the U-shaped plate 13, and make the U-shaped rubber strip 16 and the nut 93 in close contact. At this time, the friction between the U-shaped rubber strip 16 and the nut 93 can make the nut 93 difficult to rotate after being vibrated, so that the tension on the valve core 4 will not change due to vibration.

[0034] In the utility model, when the user uses the valve, firstly, the two ends of the valve body 1 are connected to the pipeline respectively, and the valve core 4 is closely contacted with the valve seat 3 through the pulling force of the spring 123 on the second transverse plate 121, and the flow hole 2 is closed through the cooperation of the valve core 4 and the valve seat 3. When the pressure of the liquid in the valve body 1 on the valve core 4 is greater than the pulling force of the spring 123 on the second transverse plate 121, the valve core 4 can be separated from the valve seat 3 through the pressure of the liquid on the valve core 4, and the flow hole 2 is opened. When the user needs the pressure adjustment range of the valve, the spring 123 can be connected to the adjustment bracket 9 by hanging the connecting column 125 on the hook 105. At the same time, when the user turns the flip plate 104, the hook 105 can be rotated with the cylinder 103 as the center through the cooperation of the flip plate 104 and the cylinder 103, and the hook 105 can be automatically separated from the connecting column 125. Moreover, when the connecting column 125 is separated from the hook 105, the spring 123 can be separated from the adjustment bracket 9.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A valve with a pressure reducing function, comprising a valve body (1), characterized in that: The valve body (1) is provided with a flow hole (2) inside, the inner wall of the flow hole (2) is fixedly connected to a valve seat (3), the inner wall of the valve seat (3) is fitted with a valve core (4), the upper surface of the valve core (4) is fixedly connected to a valve stem (5), the surface of the valve stem (5) is in contact with the inner wall of the valve body (1), the upper surface of the valve body (1) is fixedly connected to a valve cover (6), the upper surface of the valve cover (6) is provided with a circular hole (7), the surface of the valve cover (6) is provided with a first strip hole (8), the circular hole The inner wall of the valve stem (7) and the upper surface of the valve cover (6) are both fitted with an adjusting bracket (9), the surface of the adjusting bracket (9) is fixedly connected with a connecting bracket (10), the surface of the connecting bracket (10) is in contact with the inner wall of the first strip hole (8), the surface of the valve cover (6) is provided with a second strip hole (11), the inner wall of the second strip hole (11) and the inner wall of the connecting bracket (10) are both fitted with a traction bracket (12), the bottom of the traction bracket (12) is fixedly connected to the upper surface of the valve stem (5).

2. A valve with a pressure reducing function according to claim 1, characterized in that: The adjusting bracket (9) comprises a first transverse plate (91), the surface of the first transverse plate (91) is fixedly connected to the surface of the connecting bracket (10), the upper surface of the first transverse plate (91) is fixedly connected to a bolt (92), the surface of the bolt (92) is threadedly connected to a nut (93), and the bottom of the nut (93) is in contact with the upper surface of the valve cover (6).

3. A valve with pressure reducing function according to claim 2, characterized in that: The connecting bracket (10) comprises a first slide plate (101), the surface of the first slide plate (101) is fixedly connected to the surface of the first transverse plate (91), the inner wall of the first slide plate (101) contacts the inner wall of the first strip hole (8), a rectangular hole (102) is provided inside the first slide plate (101), a cylinder (103) is fixedly connected to the inner wall of the rectangular hole (102), a flip plate (104) is fitted on the surface of the cylinder (103) and the inner wall of the rectangular hole (102), a hook (105) is fixedly connected to the bottom of the flip plate (104), and the inner wall of the hook (105) contacts the surface of the traction bracket (12).

4. A valve with pressure reducing function according to claim 3, characterized in that: The traction bracket (12) comprises a second transverse plate (121), the bottom of the second transverse plate (121) is fixedly connected to the upper surface of the valve stem (5), the surface of the second transverse plate (121) is fixedly connected to a second slide plate (122), the surface of the second slide plate (122) contacts the inner wall of the second strip hole (11), the upper surface of the second slide plate (122) is fixedly connected to a spring (123), the surface of the spring (123) is fixedly connected to a cylinder (124), the inner wall of the cylinder (124) is fixedly connected to a connecting column (125), and the surface of the connecting column (125) contacts the inner wall of the hook (105).

5. A valve with pressure reducing function according to claim 2, characterized in that: A U-shaped plate (13) is fixedly connected to the upper surface of the valve cover (6), an L-shaped plate (14) is fitted on the inner wall of the U-shaped plate (13), a groove (15) is provided on the left side of the L-shaped plate (14), a U-shaped rubber strip (16) is bonded to the bottom of the L-shaped plate (14), the bottom of the U-shaped rubber strip (16) is in contact with the upper surface of the nut (93), the inner wall of the groove (15) is in contact with the surface of the bolt (92), a magnetic block (17) is fitted on the left side of the L-shaped plate (14), and the bottom of the magnetic block (17) is fixedly connected to the upper surface of the valve cover (6).

6. A valve with pressure reducing function according to claim 4, characterized in that: The number of the springs (123) is four, and the four springs (123) are symmetrically distributed with the valve cover (6) as the center.

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