Self-control partition type corrugated pipe gate valve

Abstract

The utility model relates to the technical field of gate valves, in particular to a self-control partition type corrugated pipe gate valve, which mainly comprises a main body, an inlet, an outlet, a baffle, a partition mechanism, an adjusting mechanism and a control mechanism, the device is used for manually adjusting the device. According to the self-control partition type corrugated pipe gate valve, elastic force is applied to the movable plate through the spring, the movable plate drives the valve rod to move, the valve rod drives the valve clack to block the through hole and meanwhile drives the corrugated pipe to extend, and when a medium is introduced for circulation, the medium pushes the valve clack to move upwards, drives the corrugated pipe to contract and drives the valve rod and the movable plate to extrude the spring; when a medium needs to be introduced for circulation, the spring enables the valve clack to block the through hole, the medium at the outlet does not flow back, blocking can be achieved without manual adjustment, and the flexibility of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a self-controlled isolating bellows gate valve. Background Art

[0002] With the development of science and technology, various industries have higher and higher requirements for valves. Bellows valves such as high-temperature, high-pressure, and corrosion-resistant alloys are emerging in an endless stream. While material selection is improved, structural design should also be continuously improved to achieve high-reliability design. Valves for toxic and harmful media in some special occasions, valves for nuclear media, etc., will cause great harm once they leak. The main difficulty in valve sealing is the sealing structure of the valve stem, because the valve needs to be opened and closed frequently.

[0003] Most of the existing bellows gate valves are opened or closed by manual control. When in use, when the medium does not need to be transported, the medium cannot be automatically cut off from being transported or the backflow of the medium cannot be prevented. Manual operation of the device is required, which is cumbersome and less flexible.

[0004] Therefore, a self-controlled isolating bellows gate valve is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a self-controlled isolating bellows gate valve to solve the problems raised by the above background technology.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A self-controlled isolating bellows gate valve, comprising: a main body;

[0008] an inlet, arranged on the right side of the main body;

[0009] an exit, arranged on the left side of the main body;

[0010] a baffle, disposed inside the main body;

[0011] A partition mechanism, arranged above the baffle, for automatically isolating the device;

[0012] The adjusting mechanism is arranged above the partition mechanism and is used for manually adjusting the device.

[0013] Preferably, the partition mechanism includes a fixing plate fixedly mounted on the top surface of the main body, a fixing sleeve fixedly mounted on the top surface of the fixing plate, three connecting bars fixedly mounted on the outer wall of the fixing sleeve, and fixing boxes fixedly mounted on the upper ends of the three connecting bars.

[0014] Preferably, a movable plate is slidably connected inside the fixed box, a spring is fixedly installed on the top surface of the movable plate, the upper end of the spring is fixedly connected to the inner wall of the upper end of the fixed box, and a valve stem is fixedly installed on the bottom surface of the movable plate.

[0015] Preferably, the lower end of the valve stem slides through the inner wall of the lower end of the fixed box and the top surface of the fixed plate to extend into the interior of the main body, and three limit rods are fixedly installed on the outer wall of the valve stem. Limit grooves are respectively provided on the sides of the three connecting strips, and the outer walls of one end of the three limit rods are respectively slidably connected to the inner walls of the three limit grooves.

[0016] Preferably, a sliding sleeve is slidably sleeved on the outer wall of the valve stem, the top surface of the sliding sleeve is fixedly connected to the bottom surface of the fixed plate, a bellows is fixedly installed on the bottom surface of the sliding sleeve, and a valve disc is fixedly installed on the bottom surface of the valve stem.

[0017] Preferably, the bottom surface of the bellows is fixedly connected to the top surface of the valve disc, a through hole is formed through the top surface of the baffle, and the outer wall of the lower end of the valve disc abuts against the inner wall of the through hole.

[0018] Preferably, the adjustment mechanism comprises an L-shaped bar mounted on the top surface of the fixing box by bolts, a threaded sleeve is fixedly mounted on the upper end of the L-shaped bar, and a threaded rod is threadedly connected to the inner wall of the threaded sleeve.

[0019] Preferably, a handle is fixedly mounted on the upper end of the threaded rod, a through slot is provided on the top surface of the fixed box, and the lower end of the threaded rod is rotatably connected to the top surface of the movable plate via a bearing seat.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] The utility model applies elastic force to the movable plate through the spring, and the movable plate drives the valve stem to move, and the valve stem drives the valve disc to block the through hole and drives the bellows to extend. When the medium is passed through, the medium pushes the valve disc to move upward, drives the bellows to contract and moves the valve stem and the movable plate to squeeze the spring. When the medium needs to be passed through, the spring causes the valve disc to block the through hole, and the medium at the outlet will not flow back. It can be blocked without manual adjustment, thereby improving the flexibility of the device.

[0022] When manual adjustment is not required, loosen the bolts to make the L-shaped bar movable. When manual adjustment is required, tighten the bolts to fix the L-shaped bar on the fixed box. By turning the handle, the threaded rod is driven to rotate. The threaded rod rotates and moves at the same time, driving the movable plate to move, and then driving the valve disc to move. The blocking of the device can be manually adjusted to further improve the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic cross-sectional view of the three-dimensional structure of the utility model;

[0025] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 For the utility model Figure 2 Enlarged view of point B in the middle.

[0027] In the figure: 1. Main body; 101. Inlet; 102. Outlet; 103. Baffle; 2. Partitioning mechanism; 201. Fixed plate; 202. Fixed sleeve; 203. Connecting strip; 204. Fixed box; 205. Moving plate; 206. Spring; 207. Valve stem; 208. Limiting groove; 209. Limiting rod; 210. Sliding sleeve; 211. Bellows; 212. Valve disc; 3. Adjusting mechanism; 301. L-shaped strip; 302. Threaded sleeve; 303. Threaded rod; 304. Through groove; 305. Handle; 306. Bolt. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention 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, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0030] Example 1: Please refer to Figure 1-4 The utility model provides a technical solution: an automatic isolation type bellows gate valve, comprising: a main body 1, an inlet 101, arranged on the right side of the main body 1, an outlet 102, arranged on the left side of the main body 1, and a baffle 103, arranged inside the main body 1;

[0031] The partition mechanism 2 is arranged above the baffle 103 and is used to automatically partition the device. The partition mechanism 2 includes a fixed plate 201 fixedly mounted on the top surface of the main body 1. A fixed sleeve 202 is fixedly mounted on the top surface of the fixed plate 201. Three connecting strips 203 are fixedly mounted on the outer wall of the fixed sleeve 202. A fixed box 204 is fixedly mounted on the upper end of the three connecting strips 203. A movable plate 205 is slidably connected to the interior of the fixed box 204. A spring 206 is fixedly mounted on the top surface of the movable plate 205. The upper end of the spring 206 is fixedly connected to the inner wall of the upper end of the fixed box 204. A valve stem 207 is fixedly mounted on the bottom surface of the movable plate 205. The lower end of the valve stem 207 slides through the inner wall of the lower end of the fixed box 204. The top surface of the fixed plate 201 extends to the interior of the main body 1. Three limiting rods 209 are fixedly installed on the outer wall of the valve stem 207. Limiting grooves 208 are respectively provided on the sides of the three connecting strips 203. The outer walls of one end of the three limiting rods 209 are respectively slidably connected with the inner walls of the three limiting grooves 208. A sliding sleeve 210 is slidably sleeved on the outer wall of the valve stem 207. The top surface of the sliding sleeve 210 is fixedly connected to the bottom surface of the fixed plate 201. A bellows 211 is fixedly installed on the bottom surface of the sliding sleeve 210. A valve disc 212 is fixedly installed on the bottom surface of the valve stem 207. The bottom surface of the bellows 211 is fixedly connected to the top surface of the valve disc 212. A through hole is opened through the top surface of the baffle 103. The outer wall of the lower end of the valve disc 212 abuts against the inner wall of the through hole.

[0032] The spring 206 applies elastic force to the movable plate 205, and the movable plate 205 drives the valve stem 207 to move. The valve stem 207 drives the valve flap 212 to block the through hole, and at the same time drives the bellows 211 to extend. When the medium is passed through, the medium pushes the valve flap 212 to move upward, drives the bellows 211 to contract and moves the valve stem 207 and the movable plate 205 to squeeze the spring 206. When the medium needs to be passed through, the spring 206 causes the valve flap 212 to block the through hole, and the medium at the outlet 102 will not flow back. It can be blocked without manual adjustment, thereby improving the flexibility of the device.

[0033] Example 2: Figure 1-4 As shown, a self-controlled isolating bellows gate valve disclosed in Example 2 of the present invention has a structure basically the same as that in Example 1, except that the adjusting mechanism 3 is arranged above the isolating mechanism 2 and is used for a manual adjustment device. The adjusting mechanism 3 includes an L-shaped bar 301 installed on the top surface of the fixed box 204 by a bolt 306, and a threaded sleeve 302 is fixedly installed on the upper end of the L-shaped bar 301. The inner wall of the threaded sleeve 302 is threadedly connected to a threaded rod 303, and a handle 305 is fixedly installed on the upper end of the threaded rod 303. A through groove 304 is provided on the top surface of the fixed box 204, and the lower end of the threaded rod 303 is rotatably connected to the top surface of the movable plate 205 through a bearing seat.

[0034] When manual adjustment is not required, the bolt 306 is loosened to make the L-shaped bar 301 movable. When manual adjustment is required, the bolt 306 is tightened to fix the L-shaped bar 301 on the fixing box 204. By turning the handle 305, the threaded rod 303 is driven to rotate. The threaded rod 303 rotates and moves at the same time, driving the movable plate 205 to move, and then driving the valve disc 212 to move. The blocking of the device can be manually adjusted, further improving the flexibility of the device.

[0035] The specific solution is as follows: when manual adjustment is not required, the bolt 306 is loosened to make the L-shaped bar 301 movable, and the spring 206 applies elastic force to the movable plate 205, and the movable plate 205 drives the valve stem 207 to move, and the valve stem 207 drives the valve disc 212 to block the through hole, and at the same time drives the bellows 211 to extend. When the medium is passed through, the medium pushes the valve disc 212 to move upward, drives the bellows 211 to contract and moves the valve stem 207 and the movable plate 205 to squeeze the spring 206. When the medium needs to be passed through, the spring 206 The valve flap 212 blocks the through hole, and the medium at the outlet 102 will not flow back. It can be blocked without manual adjustment, thereby improving the flexibility of the device. When manual adjustment is required, tighten the bolt 306 to fix the L-shaped bar 301 on the fixing box 204, and by turning the handle 305, the threaded rod 303 is driven to rotate. The threaded rod 303 rotates and moves at the same time, driving the movable plate 205 to move, and then the valve flap 212 can be driven to move. The blocking of the device can be manually adjusted, further improving the flexibility of the device.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative; within the spirit of the present invention, the technical features of the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0037] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An automatic isolation bellows gate valve, characterized in that: include: Subject (1); An inlet (101) is provided on the right side of the main body (1); An outlet (102) is provided on the left side of the main body (1); A baffle (103) is arranged inside the main body (1); A partition mechanism (2) is arranged above the baffle (103), and the partition mechanism (2) includes a fixed plate (201) fixedly mounted on the top surface of the main body (1), a fixed sleeve (202) fixedly mounted on the top surface of the fixed plate (201), three connecting strips (203) fixedly mounted on the outer wall of the fixed sleeve (202), a fixed box (204) fixedly mounted on the upper ends of the three connecting strips (203), a movable plate (205) slidably connected inside the movable box (204), a spring (206) fixedly mounted on the top surface of the movable plate (205), the upper end of the spring (206) fixedly connected to the inner wall of the upper end of the movable box (204), and a valve stem (207) fixedly mounted on the bottom surface of the movable plate (205), for automatically partitioning the device; An adjustment mechanism (3) is provided above the partition mechanism (2), the adjustment mechanism (3) comprising an L-shaped bar (301) mounted on the top surface of the fixing box (204) via a bolt (306), a threaded sleeve (302) being fixedly mounted on the upper end of the L-shaped bar (301), and a threaded rod (303) being threadedly connected to the inner wall of the threaded sleeve (302) for use in a manual adjustment device.

2. The automatic isolation bellows gate valve according to claim 1, characterized in that: The lower end of the valve stem (207) slides through the inner wall of the lower end of the fixed box (204) and the top surface of the fixed plate (201) and extends to the inside of the main body (1). Three limiting rods (209) are fixedly installed on the outer wall of the valve stem (207). The side surfaces of the three connecting strips (203) are respectively provided with limiting grooves (208). The outer walls of one end of the three limiting rods (209) are respectively slidably connected to the inner walls of the three limiting grooves (208).

3. The automatic isolation bellows gate valve according to claim 2, characterized in that: The outer wall of the valve stem (207) is slidably sleeved with a sliding sleeve (210), the top surface of the sliding sleeve (210) is fixedly connected to the bottom surface of the fixed plate (201), the bottom surface of the sliding sleeve (210) is fixedly mounted with a bellows (211), and the bottom surface of the valve stem (207) is fixedly mounted with a valve flap (212).

4. The automatic isolation bellows gate valve according to claim 3, characterized in that: The bottom surface of the bellows (211) is fixedly connected to the top surface of the valve flap (212); a through hole is formed through the top surface of the baffle (103); and the outer wall of the lower end of the valve flap (212) abuts against the inner wall of the through hole.

5. The automatic isolation bellows gate valve according to claim 1, characterized in that: A handle (305) is fixedly mounted on the upper end of the threaded rod (303), a through slot (304) is provided on the top surface of the fixed box (204), and the lower end of the threaded rod (303) is rotatably connected to the top surface of the movable plate (205) via a bearing seat.

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