Pressure balance valve

Abstract

The utility model discloses a pressure balance valve which comprises a valve body, a control chamber is fixedly arranged on one end face of the valve body, a threaded sleeve is rotatably installed on one end face of the control chamber, an installation piece is connected to the inner surface of the threaded sleeve in a threaded mode, and a limiting plate is installed in the installation piece in a sliding mode. A connecting rod is fixedly installed on one end face of the limiting plate, the connecting rod penetrates through one end, in the length direction, of the installation piece, the other end, in the length direction, of the installation piece is in threaded connection with a fixing block, and a spring is arranged between the fixing block and the limiting plate; by rotating the handle, the handle drives the threaded sleeve to rotate, the threaded sleeve drives the mounting piece in threaded connection with the threaded sleeve to move, the mounting piece drives the fixing block to move, when the mounting piece moves, under the action of the spring, the limiting plate does not move, and then the compression amount of the spring is changed; and further, the pressure threshold value of the valve plug is changed.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, and more specifically, particularly relates to a pressure balancing valve. Background Art

[0002] Since there is a large pressure difference or flow difference in various parts of the medium in the pipeline or container, in order to reduce or balance the difference, a valve is installed between the corresponding pipelines or containers to adjust the relative balance of pressure on both sides, or to achieve flow balance by diversion. This valve is called a balancing valve.

[0003] In the existing pressure balancing valve, the spring is fixed during installation, so the pressure threshold of the valve plug connected to the spring is fixed, and the pressure threshold of the valve plug cannot be adjusted according to actual usage. At the same time, since the spring has a service life, the spring needs to be replaced after a period of use. The spring of the existing pressure balancing valve is fixed during installation, which is inconvenient to disassemble and install.

[0004] In summary, the utility model provides a pressure balancing valve to solve the above problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a pressure balancing valve, which is achieved by the following specific technical means:

[0006] A pressure balancing valve comprises a valve body, a control chamber is fixedly provided on one end face of the valve body, a threaded sleeve is rotatably installed on one end face of the control chamber, a mounting piece is threadedly connected to the inner surface of the threaded sleeve, a limiting plate is slidably installed inside the mounting piece, a connecting rod is fixedly installed on one end face of the limiting plate, the connecting rod passes through one end of the mounting piece in the length direction, a fixing block is threadedly connected to the other end of the mounting piece in the length direction, a spring is provided between the fixing block and the limiting plate, and an extension rod is fixedly installed on the end face of the fixing block facing away from the spring.

[0007] Furthermore, a limiting rod is fixedly installed on the outer surface of one end of the mounting member away from the fixed block, a movable member is fixedly installed on the inner wall of the control chamber, a movable groove is opened inside the movable member, a slider is slidably installed inside the movable groove, and the slider is fixedly connected to the limiting rod.

[0008] Furthermore, a rotation groove is formed at one end of the extension rod away from the fixing block.

[0009] Furthermore, a handle is fixedly installed at one end of the threaded sleeve in the length direction outside the control chamber, and a stabilizing ring is fixedly installed inside the control chamber, and the stabilizing ring is rotatably connected to the outer surface of the threaded sleeve.

[0010] Furthermore, a baffle is fixedly installed inside the valve body, and a valve plug is fixedly installed on one end of the connecting rod away from the limiting plate, and the baffle corresponds to the valve plug.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The utility model rotates the handle when the pressure threshold of the valve plug is needed, so that the handle drives the threaded sleeve to rotate, and the threaded sleeve drives the mounting part threadedly connected thereto to move, and the mounting part drives the fixed block to move. When the mounting part moves, the limiting plate will not move under the action of the spring, thereby changing the compression amount of the spring, and thereby changing the pressure threshold of the valve plug.

[0013] 2. The utility model can be used for a long time, and when the spring needs to be replaced, the extension rod is rotated through the rotating groove, so that the extension rod drives the fixed block to rotate, so that the fixed block is no longer connected to the mounting part, and the spring can be taken out, replaced with a new spring, and then the fixed block is screwed on again, so that the spring can be easily replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the pressure balancing valve of the utility model.

[0015] Figure 2 It is a cross-sectional schematic diagram of the pressure balancing valve of the utility model.

[0016] Figure 3 It is an enlarged schematic diagram of part A of the pressure balancing valve of the utility model.

[0017] Figure 4 It is an enlarged schematic diagram of part B of the pressure balancing valve of the utility model.

[0018] Figure 5 It is an enlarged schematic diagram of the C part of the pressure balancing valve of the utility model.

[0019] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0020] 1. Valve body; 2. Control chamber; 3. Handle; 4. Threaded sleeve; 5. Extension rod; 6. Baffle; 7. Rotating groove; 8. Valve plug; 9. Stabilizing ring; 10. Mounting part; 11. Fixed block; 12. Spring; 13. Limiting plate; 14. Connecting rod; 15. Movable part; 16. Movable groove; 17. Slider; 18. Limiting rod. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Example:

[0025] like Figures 1 to 5 As shown, the utility model provides a pressure balancing valve, including a valve body 1, a control chamber 2 is fixedly arranged on one end face of the valve body 1, a threaded sleeve 4 is rotatably installed on one end face of the control chamber 2, a mounting piece 10 is threadedly connected to the inner surface of the threaded sleeve 4, a limiting plate 13 is slidably installed inside the mounting piece 10, a connecting rod 14 is fixedly installed on one end face of the limiting plate 13, the connecting rod 14 passes through one end of the mounting piece 10 in the length direction, a fixing block 11 is threadedly connected to the other end of the mounting piece 10 in the length direction, a spring 12 is arranged between the fixing block 11 and the limiting plate 13, an extension rod 5 is fixedly installed on one end face of the fixing block 11 away from the spring 12, and when a pressure threshold of the valve plug 8 is required, the handle 3 is turned, The handle 3 drives the threaded sleeve 4 to rotate, so that the threaded sleeve 4 drives the mounting piece 10 threadedly connected thereto to move, and the mounting piece 10 drives the fixing block 11 to move. When the mounting piece 10 moves, under the action of the spring 12, the limiting plate 13 will not move, thereby changing the compression amount of the spring 12, thereby changing the pressure threshold of the valve plug 8. After long-term use, when the spring 12 needs to be replaced, the extension rod 5 is rotated through the rotating groove 7, so that the extension rod 5 drives the fixing block 11 to rotate, so that the fixing block 11 is no longer connected to the mounting piece 10, so that the spring 12 can be taken out, replaced with a new spring 12, and then the fixing block 11 is screwed back on, so that the spring 12 can be easily replaced.

[0026] Wherein, a limiting rod 18 is fixedly installed on the outer surface of one end of the mounting member 10 facing away from the fixed block 11. The limiting plate 13 is located above the limiting rod 18 in the horizontal direction. An active member 15 is fixedly installed on the inner wall of the control room 2. An active groove 16 is formed inside the active member 15. A slider 17 is slidably installed inside the active groove 16. The slider 17 is fixedly connected to the limiting rod 18. By providing the limiting rod 18, the limiting rod 18 is fixedly connected to the mounting member 10, and the slider 17 is fixedly connected to the limiting rod 18, so that the mounting member 10 can move conveniently and avoid rotating along with the threaded sleeve 4.

[0027] Wherein, a rotating groove 7 is formed at one end of the extension rod 5 facing away from the fixed block 11. By providing the rotating groove 7, it is convenient for maintenance personnel to rotate the extension rod 5.

[0028] Wherein, a handle 3 is fixedly installed at one end of the threaded sleeve 4 in the length direction and is fixed to the outside of the control room 2. A stabilizing ring 9 is fixedly installed inside the control room 2. The stabilizing ring 9 is rotatably connected to the outer surface of the threaded sleeve 4. By providing the stabilizing ring 9, it is convenient to further limit the threaded sleeve 4.

[0029] Wherein, a baffle 6 is fixedly installed inside the valve body 1. A valve plug 8 is fixedly installed at one end of the connecting rod 14 facing away from the limiting plate 13. The baffle 6 corresponds to the valve plug 8. By providing the baffle 6 corresponding to the valve plug 8, it is convenient to use the device.

[0030] The working principle of this embodiment:

[0031] For this pressure balance valve of the present utility model, in actual use, when the pressure threshold of the valve plug 8 is required, the handle 3 is rotated, so that the handle 3 drives the threaded sleeve 4 to rotate, and the threaded sleeve 4 drives the mounting member 10 threadedly connected thereto to move, so that the mounting member 10 drives the fixed block 11 to move. When the mounting member 10 moves, under the action of the spring 12, the limiting plate 13 will not move, and thus the compression amount of the spring 12 is changed, and then the pressure threshold of the valve plug 8 is changed. After long-term use, when the spring 12 needs to be replaced, the extension rod 5 is rotated through the rotating groove 7, so that the extension rod 5 drives the fixed block 11 to rotate, so that the fixed block 11 is no longer connected to the mounting member 10, and thus the spring 12 can be taken out, a new spring 12 is replaced, and then the fixed block 11 is screwed on again, so that the spring 12 can be replaced conveniently.

[0032] The embodiments of the present utility model are given for the purpose of illustration and description. Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and deformations to the above embodiments within the scope of the present utility model.

Claims

1. Pressure balance valve, including a valve body (1), characterized in that: A control chamber (2) is fixedly arranged on one end face of the valve body (1), a threaded sleeve (4) is rotatably mounted on one end face of the control chamber (2), a mounting member (10) is threadedly connected to the inner surface of the threaded sleeve (4), a limiting plate (13) is slidably mounted inside the mounting member (10), a connecting rod (14) is fixedly mounted on one end of the limiting plate (13), the connecting rod (14) passes through one end of the mounting member (10) in the length direction, a fixing block (11) is threadedly connected to the other end of the mounting member (10) in the length direction, a spring (12) is arranged between the fixing block (11) and the limiting plate (13), and an extension rod (5) is fixedly mounted on one end face of the fixing block (11) facing away from the spring (12).

2. The pressure balance valve according to claim 1, characterized in that: A limiting rod (18) is fixedly mounted on the outer surface of one end of the mounting member (10) away from the fixed block (11); a movable member (15) is fixedly mounted on the inner wall of the control chamber (2); a movable groove (16) is provided inside the movable member (15); a slider (17) is slidably mounted inside the movable groove (16); and the slider (17) is fixedly connected to the limiting rod (18).

3. The pressure balance valve according to claim 1, wherein: A rotation groove (7) is formed at one end of the extension rod (5) which is away from the fixed block (11).

4. The pressure balance valve according to claim 1, characterized in that: A handle (3) is fixedly mounted on one end of the threaded sleeve (4) in the length direction and arranged outside the control chamber (2); a stabilizing ring (9) is fixedly mounted inside the control chamber (2); and the stabilizing ring (9) is rotatably connected to the outer surface of the threaded sleeve (4).

5. The pressure balance valve according to claim 1, characterized in that: A baffle plate (6) is fixedly installed inside the valve body (1), and a valve plug (8) is fixedly installed on one end of the connecting rod (14) away from the limiting plate (13), and the baffle plate (6) corresponds to the valve plug (8).

Images