Gate valve of bidirectional sealing structure
By designing a bidirectional sealing structure in the plug-in valve, and using the sealing plate and spring plate that are matched with guide blocks and rollers, the problems of high manufacturing difficulties and complex assembly in the prior art are solved, achieving more efficient sealing performance and convenience of use .
Patent Information
- Application Number
- CN202420637817.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Existing double-sealed valves have too many control characteristics during the manufacturing and forming process, resulting in problems such as difficult manufacturing and complex assembly.
A plug-in valve with a bidirectional sealing structure is designed. By providing a first sealing plate and a second sealing plate on the left and right sides of the valve body, and using the cooperation of the guide block and the roller, the sealing plate is pushed toward the left and right under the push of the driving assembly. The two sides move, combined with the connection and reset mechanism of the spring plate, achieve a bidirectional seal of the valve body opening and reduce friction.
It improves the sealing performance and flexibility of the valve, simplifies the manufacturing and assembly process, reduces the manufacturing difficulty, and enhances the reliability and convenience of the valve.
Smart Images
Figure CN222277523U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of valve sealing, in particular to a plug-in valve with a bidirectional sealing structure. Background Art
[0002] The gate valve is a commonly used industrial valve, also known as the butterfly valve. Its main components include the valve body, valve plate (butterfly plate), valve stem, valve seat, etc. The structure of the gate valve is relatively simple, consisting of a valve body and a valve plate. By driving the valve stem, the movement of the valve plate can be achieved, thereby controlling the flow or cutoff of the medium. Gate valves are widely used in various industrial fields, such as chemical, petroleum, food, pharmaceutical, etc.
[0003] In the prior art, for example, the technical solution described in the patent with publication number: CN115929932A: an electric gate valve with an air-sealing structure, which realizes sealing of the end of the connecting pipe through the electric gate valve with an air-sealing structure, includes components such as an electric telescopic rod, a gate device, a pushing device, an anti-leakage device and a reset device. The electric telescopic rod pushes the gate device downward by extending to block the end of the connecting pipe, and presses the anti-leakage device under the thrust of the pushing device, so that the outer surface of the sealing extension edge is closely fitted with the outer surface of the gate device.
[0004] In the prior art, there are too many characteristics that need to be controlled during the manufacturing process of the double-seal valve, which makes the valve difficult to manufacture and the assembly process complicated, making it inconvenient to manufacture and use the valve. Therefore, a gate valve with a two-way sealing structure is urgently needed to improve the problem of complex assembly. Utility Model Content
[0005] The utility model aims to provide a plug valve with a bidirectional sealing structure to solve the problem in the prior art mentioned in the background art that too many characteristics need to be controlled during the manufacturing process, resulting in great difficulty in manufacturing the valve.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A gate valve with a bidirectional sealing structure, comprising a valve core, a valve body and a drive assembly; wherein the valve core is slidably arranged inside the valve body, one end of the drive assembly is arranged on the valve body, and the other end of the drive assembly extends into the inside of the valve body and is fixedly connected to the valve core;
[0008] The valve core includes a valve plate and a sealing plate; a slide groove is arranged in the middle of the valve plate, a slider is fixedly arranged on the sealing plate, and the slider is arranged inside the slide groove; guide blocks are also arranged on the upper and lower sides of the sealing plate; the guide block is fixedly connected to the sealing plate, and a roller cooperating with the guide block is arranged on the valve plate; the guide block cooperates with the roller to push the sealing plate to move;
[0009] The sealing plate includes a first sealing plate and a second sealing plate, which are respectively arranged on the left and right sides of the valve plate, and are connected by a spring plate. An opening is arranged on the valve body, and the opening passes through the valve body. The first sealing plate and the second sealing plate are respectively used to seal the openings on the left and right sides of the valve body.
[0010] According to the above technical solution, the guide block is fixedly mounted on the sealing plate by bolts, and one end of the guide block is tilted downward.
[0011] According to the above technical solution, a groove is further provided on the valve plate, and the spring plate is arranged inside the groove.
[0012] According to the above technical solution, a plurality of grooves and spring plates are provided, and the plurality of spring plates and grooves are evenly arranged.
[0013] According to the above technical solution, a connecting seat is further provided above the valve plate, the lower end of the connecting seat is fixedly connected to the valve plate, and a mounting hole is provided at the upper end of the connecting seat, through which the connecting seat is connected to the driving assembly.
[0014] According to the above technical solution, a first connecting block is arranged on the first sealing plate, and a second connecting block is arranged on the second sealing plate. The first connecting block and the second connecting block are respectively used for installing the rotating wheel.
[0015] According to the above technical solution, the rotor includes a first rotor and a second rotor, and the first rotor and the second rotor are respectively slidably connected to the inner wall of the valve body.
[0016] According to the above technical solution, a slide groove is further arranged on the inner wall of the valve body, and the slide groove includes a first limiting groove and a second limiting groove; the first rotating wheel and the second rotating wheel are respectively arranged inside the first limiting groove and the second limiting groove.
[0017] According to the above technical solution, a protrusion is further provided on the valve plate, and the protrusion is used to install the third runner, and the third runner slides on the inner wall of the valve body.
[0018] According to the above technical solution, two sets of protrusions and third rotating wheels are provided, and the two sets of protrusions and third rotating wheels are respectively provided on both sides of the valve plate.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] This two-way sealing structure of the gate valve has the following benefits:
[0021] In the utility model, by setting the first sealing plate and the second sealing plate, bidirectional sealing of the left and right openings of the valve body can be achieved. By cooperating with the guide block and the roller, the first sealing plate and the second sealing plate are squeezed so that the first sealing plate and the second sealing plate move toward the left and right sides respectively, thereby sealing the valve, effectively preventing leakage of the medium, and improving the sealing performance of the valve.
[0022] The first sealing plate and the second sealing plate are connected by a spring plate, so that a certain displacement can occur between the first sealing plate and the second sealing plate, thereby improving the sealing performance of the valve body; and through the elasticity of the spring plate, the first sealing plate and the second sealing plate are reset, so that the sealing plate remains stable when moving up and down, reducing friction and improving the flexibility and stability of the valve.
[0023] The overall design of the solution in the utility model is compact, space-saving, convenient to install and maintain, and improves the reliability and convenience of use of the valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is one of the internal structure diagrams of the utility model;
[0025] Figure 2 This is the second schematic diagram of the internal structure of the utility model;
[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;
[0027] Figure 4 This is the third schematic diagram of the internal structure of the utility model;
[0028] Figure 5 It is a schematic diagram of the three-dimensional structure of the valve core of the utility model.
[0029] Markings in the figure: 100-valve body, 200-valve plate, 300-first sealing plate, 400-second sealing plate, 500-slide groove, 600-slider, 700-guide block, 800-roller, 900-spring plate, 110-opening, 111-groove, 112-drive assembly, 113-first connecting block, 114-second connecting block, 115-first rotating wheel, 116-second rotating wheel, 117-first limiting groove, 118-second limiting groove, 119-protrusion, 120-third rotating wheel, 121-connecting seat. DETAILED DESCRIPTION
[0030] 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.
[0031] Embodiment 1
[0032] like Figure 1 As shown, a gate valve with a bidirectional sealing structure includes a valve core, a valve body 100 and a drive assembly 112; wherein the valve core is slidably arranged inside the valve body 100, one end of the drive assembly 112 is arranged on the valve body 100, and the other end of the drive assembly 112 extends into the interior of the valve body 100 and is fixedly connected to the valve core;
[0033] like Figure 2 and Figure 5 As shown, the valve core includes a valve plate 200 and a sealing plate; a slide groove 500 is provided in the middle of the valve plate 200, a slider 600 is fixedly provided on the sealing plate, and the slider 600 is arranged inside the slide groove 500; guide blocks 700 are also provided on the upper and lower sides of the sealing plate; the guide block 700 is fixedly connected to the sealing plate, and a roller 800 cooperating with the guide block 700 is provided on the valve plate 200; the guide block 700 cooperates with the roller 800 to push the sealing plate to move;
[0034] like Figure 2 As shown, the sealing plate includes a first sealing plate 300 and a second sealing plate 400, the first sealing plate 300 and the second sealing plate 400 are respectively arranged on the left and right sides of the valve plate 200, the first sealing plate 300 and the second sealing plate 400 are connected by a spring plate 900, and an opening 110 (such as Figure 3 As shown in FIG. 1 , the opening 110 is arranged through the valve body 100 , and the first sealing plate 300 and the second sealing plate 400 are used to seal the openings 110 on the left and right sides of the valve body 100 , respectively.
[0035] In the utility model, by setting the first sealing plate 300 and the second sealing plate 400, bidirectional sealing of the openings 110 on the left and right sides of the valve body 100 can be achieved. Through the cooperation of the guide block 700 and the roller 800, the first sealing plate 300 and the second sealing plate 400 are squeezed so that the first sealing plate 300 and the second sealing plate 400 move to the left and right sides respectively, thereby sealing the valve, effectively preventing leakage of the medium, and improving the sealing performance of the valve.
[0036] The first sealing plate 300 and the second sealing plate 400 are connected by the spring plate 900, so that a certain displacement can occur between the first sealing plate 300 and the second sealing plate 400, thereby improving the sealing performance of the valve body 100; and through the elasticity of the spring plate 900, the first sealing plate 300 and the second sealing plate 400 are reset, so that the sealing plates remain stable when moving up and down, reducing friction and improving the flexibility and stability of the valve.
[0037] The overall design of the solution in the utility model is compact, space-saving, convenient to install and maintain, and improves the reliability and convenience of use of the valve.
[0038] Embodiment 2
[0039] This embodiment is a further refinement of the first embodiment.
[0040] like Figure 5 As shown, the guide block 700 is fixedly mounted on the sealing plate by bolts, and one end of the guide block 700 is tilted downward.
[0041] A guide block 700 is disposed between the first sealing plate 300 and the second sealing plate 400 , and the guide blocks 700 between the first sealing plate 300 and the second sealing plate 400 are disposed opposite to each other.
[0042] like Figure 2 As shown, the guide blocks 700 are arranged opposite to each other, and one end of the guide blocks 700 is arranged to be tilted downward, so that the gap between the first sealing plate 300 and the second sealing plate 400 is gradually reduced from large to small. When the valve is closed, the valve plate 200 is pushed downward by the driving assembly 112, and the roller 800 arranged on the valve plate 200 also moves downward, thereby gradually spreading the first sealing plate 300 and the second sealing plate 400 apart, so that the first sealing plate 300 and the second sealing plate 400 move outward to seal the valve.
[0043] like Figure 1 As shown, a groove 111 is further provided on the valve plate 200 , and the spring plate 900 is arranged inside the groove 111 .
[0044] Specifically, the spring plate 900 is disposed inside the groove 111 . When the valve plate 200 moves up and down, the spring plate 900 will not hinder the movement of the valve plate 200 , so that the valve can operate smoothly.
[0045] There are multiple grooves 111 and spring plates 900, and the multiple spring plates 900 and grooves 111 are evenly arranged.
[0046] Specifically, the number of spring plates 900 and grooves 111 is 5 to 8; preferably, the number of spring plates 900 and grooves 111 is 6.
[0047] like Figure 4 and Figure 5 As shown, a first connection block 113 is provided on the first sealing plate 300, and a second connection block 114 is provided on the second sealing plate 400. The first connection block 113 and the second connection block 114 are respectively used to install the runner. The runner includes a first runner 115 and a second runner 116, and the first runner 115 and the second runner 116 are respectively slidably connected to the inner wall of the valve body 100. A slide groove 500 is also provided on the inner wall of the valve body 100, and the slide groove 500 includes a first limiting groove 117 and a second limiting groove 118; the first runner 115 and the second runner 116 are respectively arranged inside the first limiting groove 117 and the second limiting groove 118.
[0048] Specifically, a first rotating wheel 115 is arranged on the first sealing plate 300, a second rotating wheel 116 is arranged on the second sealing plate 400, and a first limiting groove 117 and a second limiting groove 118 are arranged inside the valve body 100; the first rotating wheel 115 is arranged inside the first limiting groove 117, and the second rotating wheel 116 is arranged inside the second limiting groove 118, so that the first rotating wheel 115 slides inside the first limiting groove 117, and the second rotating wheel 116 slides inside the second limiting groove 118.
[0049] When the valve body 100 moves downward, the first rotating wheel 115 and the second rotating wheel 116 move inside the first limiting groove 117 and the second limiting groove 118 respectively. After moving a certain distance, the first rotating wheel 115 contacts the inner wall of the first limiting groove 117, and the second rotating wheel 116 contacts the inner wall of the second limiting groove 118, completing the limiting of the first sealing plate 300 and the second sealing plate 400, so that the first sealing plate 300 and the second sealing plate 400 stop moving.
[0050] The working principle of the utility model is as follows: when the valve is closed, the driving assembly 112 drives the valve plate 200 to move downward, and when the valve plate 200 moves downward, it drives the first sealing plate 300 and the second sealing plate 400 to move downward together. The first sealing plate 300 and the second sealing plate 400 respectively drive the first rotating wheel 115 and the second rotating wheel 116 to move. After moving a certain distance, the first rotating wheel 115 contacts the inner wall of the first limiting groove 117, and the second rotating wheel 116 contacts the inner wall of the second limiting groove 118, so that the first sealing plate 300 and the second sealing plate 400 stop moving. At this time, the valve plate 200 continues to move downward under the action of the driving assembly 112, so that the slider 600 slides inside the slide groove 500, and the first sealing plate 300 and the second sealing plate 400 are propped open by the roller 800 to complete the closing of the valve.
[0051] 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.
[0052] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A gate valve with a bidirectional sealing structure, characterized in that: The valve core comprises a valve body (100) and a drive assembly (112); wherein the valve core is slidably arranged inside the valve body (100), one end of the drive assembly (112) is arranged on the valve body (100), and the other end of the drive assembly (112) extends into the interior of the valve body (100) and is fixedly connected to the valve core; The valve core comprises a valve plate (200) and a sealing plate; a slide groove (500) is arranged in the middle of the valve plate (200); a slider (600) is fixedly arranged on the sealing plate, and the slider (600) is arranged inside the slide groove (500); guide blocks (700) are also arranged on the upper and lower sides of the sealing plate; the guide block (700) is fixedly connected to the sealing plate, and a roller (800) cooperating with the guide block (700) is arranged on the valve plate (200); the guide block (700) cooperates with the roller (800) to push the sealing plate to move; The sealing plate comprises a first sealing plate (300) and a second sealing plate (400), the first sealing plate (300) and the second sealing plate (400) are respectively arranged on the left and right sides of the valve plate (200), the first sealing plate (300) and the second sealing plate (400) are connected via a spring plate (900), an opening (110) is arranged on the valve body (100), and the opening (110) passes through the valve body (100), and the first sealing plate (300) and the second sealing plate (400) are respectively used to seal the openings (110) on the left and right sides of the valve body (100).
2. A gate valve with a bidirectional sealing structure according to claim 1, characterized in that: The guide block (700) is fixedly mounted on the sealing plate by means of bolts, and one end of the guide block (700) is tilted downward.
3. The gate valve with a bidirectional sealing structure according to claim 1, characterized in that: A groove (111) is also provided on the valve plate (200), and the spring plate (900) is arranged inside the groove (111).
4. A gate valve with a bidirectional sealing structure according to claim 3, characterized in that: A plurality of grooves (111) and spring plates (900) are provided, and the plurality of spring plates (900) and grooves (111) are evenly arranged.
5. The gate valve with a bidirectional sealing structure according to claim 1, characterized in that: A connecting seat (121) is also provided above the valve plate (200), the lower end of the connecting seat (121) is fixedly connected to the valve plate (200), and a mounting hole is provided at the upper end of the connecting seat (121), and the connecting seat (121) is connected to the driving assembly (112) via the mounting hole.
6. The gate valve with a bidirectional sealing structure according to claim 1, characterized in that: A first connection block (113) is arranged on the first sealing plate (300), and a second connection block (114) is arranged on the second sealing plate (400). The first connection block (113) and the second connection block (114) are respectively used for installing a rotating wheel.
7. A gate valve with a bidirectional sealing structure according to claim 6, characterized in that: The rotating wheel comprises a first rotating wheel (115) and a second rotating wheel (116), and the first rotating wheel (115) and the second rotating wheel (116) are respectively connected to the inner wall of the valve body (100) in a sliding manner.
8. The gate valve with a bidirectional sealing structure according to claim 7, characterized in that: A slide groove (500) is also provided on the inner wall of the valve body (100), and the slide groove (500) comprises a first limiting groove (117) and a second limiting groove (118); the first rotating wheel (115) and the second rotating wheel (116) are respectively arranged inside the first limiting groove (117) and the second limiting groove (118).
9. The gate valve with a bidirectional sealing structure according to claim 1, characterized in that: A protrusion (119) is also provided on the valve plate (200). The protrusion (119) is used to install a third rotating wheel (120). The third rotating wheel (120) slides on the inner wall of the valve body (100).
10. The gate valve with a bidirectional sealing structure according to claim 9, characterized in that: Two sets of protrusions (119) and third rotating wheels (120) are provided, and the two sets of protrusions (119) and third rotating wheels (120) are respectively provided on both sides of the valve plate (200).