Gate valve easy to disassemble and assemble

Abstract

The utility model relates to the technical field of gate valves, and discloses a gate valve easy to disassemble and assemble, which comprises a valve body and flange plates, the flange plates are integrally formed on two sides of the valve body, a support is fixed at the top of the valve body, a hand wheel is rotatably connected at the top of the support, and a valve rod is in threaded connection with the inside of the hand wheel. Protruding blocks are fixed to the two sides of the flange plate, and guide columns are fixed to the inner sides of the protruding blocks. The valve can be mounted and dismounted through the rotating rod on the fixing pin without a special tool, after the valve is opened, the diameter difference between the threaded column and the fixing pin can be matched with the circular plate to limit the bolt so as to prevent the bolt from being lost, and the limiting rod is matched with the spring and the limiting groove to limit the hand wheel when the gate valve is opened. The use stability of the gate valve is improved, and the problems that bolts detached from an existing gate valve need to be placed in a temporary place by workers, the bolts needed for fixing are prone to being lost, and the installation speed is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to an easily disassembled gate valve. Background Art

[0002] The gate valve is a gate plate that opens and closes. The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate plate. Usually, the sealing surface will be welded with metal materials to increase wear resistance. The gate plate has a rigid gate plate and an elastic gate plate. According to the different gate plates, the gate valve is divided into a rigid gate valve and an elastic gate valve.

[0003] Most valves currently used are connected to pipelines by bolts. When performing internal maintenance on the valve, the valve needs to be removed from the pipeline. Before removing the valve cover, the staff needs to remove multiple bolts. The removed bolts need to be temporarily placed, which is not only time-consuming, but also easy to lose the bolts required for fixing. In addition, the fixing bolts need to be aligned one by one and tightened during installation, which affects the installation speed of the gate valve. Utility Model Content

[0004] The utility model aims to provide a gate valve which is easy to disassemble and assemble. The gate valve does not require special tools for installation. After opening, the bolts can be limited to prevent the bolts from being lost. The hand wheel can be limited when the gate valve is opened, thereby improving the use stability of the gate valve.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gate valve that is easy to disassemble and assemble, comprises a valve body and a flange, the flanges are integrally formed on both sides of the valve body, a bracket is fixed on the top of the valve body, the top of the bracket is rotatably connected to a handwheel, the internal thread of the handwheel is connected to a valve stem, protrusions are fixed on both sides of the flange, a guide column is fixed on the inner side of the protrusion, a moving block is slidably connected to the surface of the guide column, the inner side of the moving block is rotatably connected to an arc plate, the surface of the arc plate is movably connected to a fixing pin, a threaded column is fixed on the inner side of the fixing pin, a fixing column is fixed on the outer side of the fixing pin, a rotating rod is slidably connected to the inside of the fixing column, a limiting disk is fixed on the top of the bracket, a plurality of limiting grooves are provided on the surface of the limiting disk, and a limiting structure is fixed between the handwheel and the limiting groove.

[0006] Preferably, the limiting structure includes a sliding groove and a guide rod, the sliding groove is opened on the surface of the hand wheel, the guide rod is fixed on the inner side of the sliding groove, a spring is sleeved on the surface of the guide rod, a square block is slidably connected to the surface of the guide rod, a limiting rod is fixed to the bottom of the square block, and the limiting rod is movably connected to the limiting groove.

[0007] Preferably, the top of the square block is rotatably connected to a rotating column, and the rotating column is made of rubber material.

[0008] Preferably, positioning blocks are fixed to both ends of the rotating rod, and the diameter of the positioning blocks is larger than the diameter of the rotating rod.

[0009] Preferably, the diameter of the threaded column is greater than the diameter of the fixing pin, and a circular plate is fixed on the surface of the fixing pin.

[0010] Preferably, the arc-shaped plates are installed symmetrically, and the positions of the fixing pins correspond to the holes of the flange.

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

[0012] The utility model discloses to install and disassemble the valve body without special tools through the rotating rod on the fixing pin, and after opening, the diameter difference between the threaded column and the fixing pin can cooperate with the circular plate to limit the bolt to prevent the bolt from being lost, and the limiting rod cooperates with the spring and the limiting groove to limit the hand wheel when the gate valve is opened, thereby improving the stability of the gate valve and solving the problems that the bolts after the existing gate valve is disassembled need to be temporarily placed by the staff, the bolts required for fixing are easily lost, and the installation speed is slow. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0015] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model;

[0016] Figure 4 For this utility model Figure 1 A partial enlarged view of point A in the middle.

[0017] In the figure: 1. valve body; 2. flange; 3. bracket; 4. hand wheel; 5. valve stem; 6. bump; 7. guide column; 8. moving block; 9. arc plate; 10. fixing pin; 11. threaded column; 12. fixing column; 13. rotating rod; 14. limiting plate; 15. limiting groove; 16. limiting structure; 161. sliding groove; 162. guide rod; 163. spring; 164. square block; 165. limiting rod; 17. rotating column; 18. positioning block; 19. round plate. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-4 As shown, a gate valve that is easy to disassemble and assemble comprises a valve body 1 and a flange 2. The flange 2 is integrally formed on both sides of the valve body 1. A bracket 3 is fixed to the top of the valve body 1. A hand wheel 4 is rotatably connected to the top of the bracket 3. A valve stem 5 is connected to the internal thread of the hand wheel 4. Bumps 6 are fixed to both sides of the flange 2. A guide column 7 is fixed to the inner side of the bump 6. A moving block 8 is slidably connected to the surface of the guide column 7. An arc plate 9 is rotatably connected to the inner side of the moving block 8. A fixing pin 10 is movably connected to the surface of the arc plate 9. A threaded column 11 is fixed to the inner side of the fixing pin 10. A fixing column 12 is fixed to the outer side of the fixing pin 10. A rotating rod 13 is slidably connected to the inner side of the fixing column 12. A limiting disk 14 is fixed to the top of the bracket 3. A plurality of limiting grooves 15 are provided on the surface of the limiting disk 14. A limiting structure 16 is fixed between the hand wheel 4 and the limiting groove 15.

[0020] The limiting structure 16 includes a sliding groove 161 and a guide rod 162. The sliding groove 161 is opened on the surface of the hand wheel 4, and the guide rod 162 is fixed on the inner side of the sliding groove 161. The surface of the guide rod 162 is sleeved with a spring 163. The surface of the guide rod 162 is slidably connected with a square block 164. The bottom of the square block 164 is fixed with a limiting rod 165, and the limiting rod 165 is movably connected with the limiting groove 15. The limiting rod 165 cooperates with the spring 163 and the limiting groove 15 to limit the hand wheel 4 when the gate valve is opened, thereby improving the stability of the gate valve. The top of the square block 164 is rotatably connected with a rotating column 17, and the rotating column 17 is made of rubber material. The rotating column 17 can fit the fingers, which is convenient for the installer to squeeze the square block 164 outward and rotate the hand wheel 4.

[0021] Positioning blocks 18 are fixed at both ends of the rotating rod 13 . The diameter of the positioning blocks 18 is larger than the diameter of the rotating rod 13 . The positioning blocks 18 can limit the rotating rod 13 so that the rotating rod 13 slides between the positioning blocks 18 .

[0022] The diameter of the threaded column 11 is greater than the diameter of the fixing pin 10 . A circular plate 19 is fixed to the surface of the fixing pin 10 . The circular plate 19 can limit one end of the fixing pin 10 , while the diameter difference can limit the other end.

[0023] The arc plate 9 is installed symmetrically, and the position of the fixing pin 10 corresponds to the hole position of the flange 2. This design can ensure that the threaded column 11 is tightened to avoid the situation where the hole position cannot be aligned.

[0024] Working principle: When installing the gate valve, the staff first aligns the installation holes of the flanges 2 on both sides with the holes of the installation flanges in the pipeline. After alignment, the staff pulls the arc plates 9 at both ends to the outermost side, and then flips the arc plates 9 to a flush state. After flipping, each threaded column 11 can automatically align with the holes on the surface of the flange 2. At this time, the staff only needs to pinch the rotating rod 13 and rotate it to tighten the threaded columns 11 in turn to fix the flange 2. The circular plate 19 on the surface of the fixing pin 10 can limit one end of the fixing pin 10, and the diameter difference can limit the other end, which can ensure that the fixing pin 10 moves on the arc plate 9 and does not need to be stored after opening. When opening the valve, the staff first pinches the rotating column 17 to pull the square block 164 outward, and the square block 164 squeezes the spring 163 outward, and then continues to rotate to drive the handwheel 4 to rotate. After the rotation is completed, the staff releases the rotating column 17, and the rotating column 17 cooperates with the limiting groove 15 under the action of the spring 163 to limit the handwheel 4.

[0025] 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.

[0026] 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. An easily disassembled gate valve, comprising a valve body (1) and a flange (2), characterized in that: The flange (2) is integrally formed on both sides of the valve body (1); a bracket (3) is fixed on the top of the valve body (1); a hand wheel (4) is rotatably connected to the top of the bracket (3); a valve stem (5) is connected to the internal thread of the hand wheel (4); bumps (6) are fixed on both sides of the flange (2); a guide column (7) is fixed on the inner side of the bump (6); a moving block (8) is slidably connected to the surface of the guide column (7); and an arc plate (9) is rotatably connected to the inner side of the moving block (8). A fixing pin (10) is movably connected to the surface of the arc plate (9), a threaded column (11) is fixed to the inner side of the fixing pin (10), a fixing column (12) is fixed to the outer side of the fixing pin (10), a rotating rod (13) is slidably connected to the interior of the fixing column (12), a limiting plate (14) is fixed to the top of the bracket (3), a plurality of limiting grooves (15) are formed on the surface of the limiting plate (14), and a limiting structure (16) is fixed between the hand wheel (4) and the limiting grooves (15).

2. The easily disassembled gate valve according to claim 1, characterized in that: The limiting structure (16) comprises a sliding groove (161) and a guide rod (162); the sliding groove (161) is formed on the surface of the hand wheel (4); the guide rod (162) is fixed to the inner side of the sliding groove (161); a spring (163) is sleeved on the surface of the guide rod (162); a square block (164) is slidably connected to the surface of the guide rod (162); a limiting rod (165) is fixed to the bottom of the square block (164); and the limiting rod (165) is movably connected to the limiting groove (15).

3. The easily disassembled gate valve according to claim 2, characterized in that: The top of the square block (164) is rotatably connected to a rotating column (17), and the rotating column (17) is made of rubber material.

4. The easily disassembled gate valve according to claim 1, characterized in that: Positioning blocks (18) are fixed to both ends of the rotating rod (13), and the diameter of the positioning blocks (18) is larger than the diameter of the rotating rod (13).

5. The easily disassembled gate valve according to claim 1, characterized in that: The diameter of the threaded column (11) is greater than the diameter of the fixing pin (10), and a circular plate (19) is fixed to the surface of the fixing pin (10).

6. The easily disassembled gate valve according to claim 1, characterized in that: The arc-shaped plates (9) are installed symmetrically, and the positions of the fixing pins (10) correspond to the positions of the holes of the flange (2).

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