Operating valve with high sealing performance

Abstract

The utility model relates to an operating valve with strong sealing performance, which belongs to the field of operating valves and comprises a valve seat and a valve body, a limiting component is mounted on the valve body, a fixing component is mounted on the valve body, the limiting component comprises mounting plates fixedly mounted on two sides of the valve body, connecting frames are slidably mounted at the tops of the two mounting plates, and the connecting frames are fixedly mounted on the valve body. Sliding blocks are fixedly mounted at the bottoms of the two connecting frames correspondingly, and bearings are rotationally mounted in the two connecting frames correspondingly. According to the operating valve with the high sealing performance, by installing the limiting assembly, the sealing plate and the valve body can be conveniently and rapidly installed and connected, after the sealing plate is abraded after being used for a long time, the sealing plate can be conveniently and rapidly detached and replaced, and the sealing performance and the using quality of the device are improved; and when the sealing plate needs to be replaced, the sealing plate can be conveniently and rapidly replaced, and the replacement efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of control valves, in particular to a control valve with strong sealing performance. Background Art

[0002] The control valve is mainly composed of a valve body, a sliding valve, a double-acting cylinder, a piston, a safety valve, a return spring and a rear end cover. The control valve is a three-position, four-way, multi-piece valve group. Its working principle and function is to send high-pressure liquid to various actuators (such as columns, jacks, etc.) required by the design through a control handle. It has a high-pressure port and a return liquid port. When the handle is operated, the pressure liquid at the high-pressure port is supplied to the outlet on the controlled side to act on the lower cavity of the column, while the liquid in the upper cavity returns to the oil tank through the return liquid port and the return liquid pipe.

[0003] Please refer to a new type of control valve with announcement number CN201739598U, which includes a control valve body, which is assembled with a stainless steel ball valve through a valve seat, the valve seat is flange-connected to an external pipe, and a sealing plate is provided at the face seal between the valve seat and the valve core of the control valve body; the utility model has the following beneficial effects: the interface adopts the same flange connection method as the vehicle braking system, inherits the structural advantages of the existing control valve, maximizes the use of existing components, improves the standardization coefficient, reduces manufacturing costs, reduces the number of connections between the control valve and other accessories, improves assembly efficiency and overall sealing, improves the reliability of key accessories, reduces the impact of the outside world on the performance of the control valve, and extends the maintenance cycle and service life, and reduces maintenance and repair costs.

[0004] In the above patent, the sealing plate is installed between the valve seat and the valve body, which is not convenient for quick disassembly. During the use of the device, the valve core moves back and forth, and the unloading holes on the valve core often rub against the sealing plate, which easily causes the sealing plate to wear. In the long run, the sealing performance of the device is reduced, and the use effect of the device is reduced. This application proposes another technical solution to solve this technical problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a control valve with strong sealing performance, which has the advantages of limited quick disassembly, etc., and solves the problem that the valve core moves back and forth, the unloading holes on the valve core often rub against the sealing plate, which easily causes the sealing plate to wear, etc., which reduces the sealing performance of the device in the long run and reduces the use effect of the device.

[0006] To achieve the above object, the utility model provides the following technical solutions: a control valve with strong sealing performance, comprising a valve seat and a valve body, a limit position component is installed on the valve body, and a fixing component is installed on the valve body;

[0007] The limit assembly comprises mounting plates fixedly mounted on both sides of the valve body, the tops of the two mounting plates are slidably mounted with connection frames, the bottoms of the two connection frames are fixedly mounted with sliders, and the interiors of the two connection frames are rotatably mounted with bearings;

[0008] A rotating rod is installed on the opposite side of the two bearings, a rotating rod is fixedly installed on the opposite side of the two bearings, and an annular rotating block is fixedly installed on the outer sides of the two bearings.

[0009] Furthermore, the fixing assembly includes bolts movably installed inside the mounting plate, connecting blocks are fixedly installed inside the two connecting frames, a valve core is provided inside the valve body, a sealing plate is clamped inside the valve body, and two clamping blocks are fixedly installed on the top of the sealing plate.

[0010] Furthermore, extension holes are provided on one side opposite to the two connection frames and on both sides of the valve body, and the rotating rod extends to the interior of the valve body through the extension holes.

[0011] Furthermore, threads are engraved on opposite ends of the two rotating rods, a first threaded hole is opened inside the valve body, and the rotating rod is threadedly connected to the valve body through the first threaded hole.

[0012] Furthermore, a through hole is formed on the opposite sides of the two connection frames, and the rotating rod extends to the outside of the connection frame through the through hole.

[0013] Furthermore, a slide groove is provided on the top of the two mounting plates, and the sliding block is slidably connected to the mounting plates via the slide groove.

[0014] Furthermore, a clamping groove is provided inside the valve body, and the clamping block is clamped with the valve body through the clamping groove.

[0015] Furthermore, a second threaded hole is provided on the top of the valve seat, and the bolt is threadedly connected to the valve seat through the second threaded hole.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] This control valve with strong sealing performance is convenient for quickly installing and connecting the sealing plate and the valve body by installing a limiting component. When the sealing plate is worn out after long-term use, the sealing plate can be quickly disassembled and replaced, thereby improving the sealing performance and use quality of the device. By installing a fixing component, the valve body and the valve seat can be quickly installed. When the sealing plate needs to be replaced, the sealing plate can also be quickly replaced, thereby improving the efficiency of device replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 A magnified view of the structure in the middle;

[0020] Figure 3 It is a three-dimensional diagram of the structure of the utility model.

[0021] In the figure: 1. valve seat; 2. valve body; 3. mounting plate; 4. connecting frame; 5. slider; 6. bearing; 7. rotating rod; 8. rotating rod; 9. annular rotating block; 10. bolt; 11. connecting block; 12. valve core; 13. sealing plate; 14. clamping block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 In this embodiment, a control valve with strong sealing performance includes a valve seat 1 and a valve body 2, a limiting component is installed on the valve body 2, and a fixing component is installed on the valve body 2.

[0024] The limit assembly includes a mounting plate 3 fixedly mounted on both sides of the valve body 2, a connecting frame 4 is slidably mounted on the top of the two mounting plates 3, a slider 5 is fixedly mounted on the bottom of the two connecting frames 4, a slide groove is provided on the top of the two mounting plates 3, the slider 5 is slidably connected to the mounting plate 3 through the slide groove, providing a guide for the movement of the connecting frame 4, making the movement of the connecting frame 4 more convenient, and bearings 6 are rotatably mounted inside the two connecting frames 4.

[0025] Among them, a rotating rod 7 is installed on the opposite side of the two bearings 6, and a through hole is opened on the opposite side of the two connection frames 4. The rotating rod 7 extends to the outside of the connection frame 4 through the through hole, which is convenient for the user to rotate the two rotating rods 7.

[0026] In addition, a rotating rod 8 is fixedly installed on the opposite side of the two bearings 6, and an extension hole is opened on the opposite side of the two connecting frames 4 and both sides of the valve body 2, and the rotating rod 8 extends to the inside of the valve body 2 through the extension hole.

[0027] In this embodiment, threads are engraved on the opposite ends of the two rotating rods 8, and a first threaded hole is opened inside the valve body 2. The rotating rod 8 is threadedly connected to the valve body 2 through the first threaded hole, which is convenient for limiting and fixing the sealing plate 13, thereby improving the sealing quality of the device. Annular rotating blocks 9 are fixedly installed on the outer sides of the two bearings 6.

[0028] It should be noted that the operating valve with strong sealing performance can facilitate the quick installation and connection of the sealing plate 13 and the valve body 2 by installing a limit assembly. When the sealing plate 13 is worn out after long-term use, the sealing plate 13 can be quickly disassembled and replaced, thereby improving the sealing performance and use quality of the device.

[0029] Specifically, when the control valve with strong sealing performance is used, the two rotating rods 7 are rotated to drive the bearing 6 to rotate synchronously. The annular rotating block 9 makes it easier for the bearing 6 to rotate. The bearing 6 rotates to drive the rotating rod 8 to rotate synchronously, so that the rotating rod 8 is released from the threaded connection with the valve body 2. Then, the two connecting frames 4 are slid to move in opposite directions, and the rotating rod 8 is moved out of the sealing plate 13 to release the limit on the sealing plate 13, so that the user can better disassemble the sealing plate 13, especially to facilitate the installation of the sealing plate 13 more firmly, thereby improving the sealing quality of the device.

[0030] In this embodiment, the fixing assembly includes a bolt 10 movably mounted inside the mounting plate 3. A second threaded hole is provided on the top of the valve seat 1. The bolt 10 is threadedly connected to the valve seat 1 through the second threaded hole, so as to facilitate quick installation of the valve seat 1 and the valve body 2.

[0031] The two connection frames 4 are internally fixed with connection blocks 11 , and a rolling groove is provided on the opposite side of the connection block 11 . The annular rotating block 9 is rotatably connected to the connection block 11 through the rolling groove, providing a guide for the rotation of the bearing 6 .

[0032] In addition, a valve core 12 is provided inside the valve body 2, a sealing plate 13 is clamped inside the valve body 2, two clamping blocks 14 are fixedly installed on the top of the sealing plate 13, and a clamping groove is opened inside the valve body 2. The clamping block 14 is clamped with the valve body 2 through the clamping groove, which facilitates the initial limiting fixation of the sealing plate 13.

[0033] It should be noted that the control valve with strong sealing performance is easy to install the valve body 2 and the valve seat 1 quickly by installing a fixing component. When the sealing plate 13 needs to be replaced, it is also easy to quickly replace the sealing plate 13, thereby improving the efficiency of device replacement.

[0034] Specifically, when using the control valve with strong sealing performance, the threaded connection between the bolt 10 and the valve body 2 is released, the mounting plate 3 is separated from the valve seat 1, and then the limit on the sealing plate 13 is released, the clamping connection between the clamping block 14 and the valve body 2 is released, and then the sealing plate 13 is disassembled and replaced. After the sealing plate 13 is worn out due to long-term use, the sealing plate 13 can be quickly disassembled and replaced, thereby improving the sealing performance and use quality of the device.

[0035] The working principle of the above embodiment is:

[0036] (1) When the control valve with strong sealing performance is used, the two rotating rods 7 are rotated to drive the bearing 6 to rotate synchronously. The annular rotating block 9 makes it easier for the bearing 6 to rotate. The bearing 6 rotates to drive the rotating rod 8 to rotate synchronously, so that the rotating rod 8 is released from the threaded connection with the valve body 2. Then, the two connecting frames 4 are slid to move in opposite directions, and the rotating rod 8 is moved out of the sealing plate 13, releasing the limit on the sealing plate 13, making it easier for the user to disassemble the sealing plate 13, and more importantly, making it easier for the sealing plate 13 to be installed more firmly, thereby improving the sealing quality of the device.

[0037] (2) When using the control valve with strong sealing performance, the threaded connection between the bolt 10 and the valve body 2 is released, the mounting plate 3 is separated from the valve seat 1, and then the limit on the sealing plate 13 is released, and the clamping connection between the clamping block 14 and the valve body 2 is released, and then the sealing plate 13 is disassembled and replaced. When the sealing plate 13 is worn out due to long-term use, the sealing plate 13 can be quickly disassembled and replaced, thereby improving the sealing performance and use quality of the device.

[0038] 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. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A control valve with strong sealing performance, comprising a valve seat (1) and a valve body (2), characterized in that: A limit assembly is installed on the valve body (2), and a fixing assembly is installed on the valve body (2); The limit assembly comprises a mounting plate (3) fixedly mounted on both sides of the valve body (2); a connecting frame (4) is slidably mounted on the top of the two mounting plates (3); a sliding block (5) is fixedly mounted on the bottom of the two connecting frames (4); and bearings (6) are rotatably mounted inside the two connecting frames (4); A rotating rod (7) is installed on the opposite side of the two bearings (6), a rotating rod (8) is fixedly installed on the opposite side of the two bearings (6), and an annular rotating block (9) is fixedly installed on the outer side of the two bearings (6).

2. A control valve with strong sealing performance according to claim 1, characterized in that: The fixing assembly comprises a bolt (10) movably mounted inside the mounting plate (3), a connecting block (11) is fixedly mounted inside the two connecting frames (4), a valve core (12) is arranged inside the valve body (2), a sealing plate (13) is clamped inside the valve body (2), and two clamping blocks (14) are fixedly mounted on the top of the sealing plate (13).

3. A control valve with strong sealing performance according to claim 1, characterized in that: Extension holes are provided on opposite sides of the two connection frames (4) and on both sides of the valve body (2), and the rotating rod (8) extends to the interior of the valve body (2) through the extension holes.

4. A control valve with strong sealing performance according to claim 1, characterized in that: The opposite ends of the two rotating rods (8) are both engraved with threads, a first threaded hole is provided inside the valve body (2), and the rotating rod (8) is threadedly connected to the valve body (2) through the first threaded hole.

5. A control valve with strong sealing performance according to claim 1, characterized in that: A through hole is provided on the opposite sides of the two connection frames (4), and the rotating rod (7) extends to the outside of the connection frame (4) through the through hole.

6. A control valve with strong sealing performance according to claim 1, characterized in that: The tops of the two mounting plates (3) are each provided with a sliding groove, and the sliding block (5) is slidably connected to the mounting plates (3) via the sliding groove.

7. A control valve with strong sealing performance according to claim 2, characterized in that: A clamping groove is provided inside the valve body (2), and the clamping block (14) is clamped to the valve body (2) via the clamping groove.

8. A control valve with strong sealing performance according to claim 2, characterized in that: A second threaded hole is provided on the top of the valve seat (1), and the bolt (10) is threadedly connected to the valve seat (1) through the second threaded hole.

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