Flat valve convenient to install

Abstract

The utility model belongs to the technical field of flat valve installation, and particularly relates to a flat valve convenient to install, which comprises a connecting pipe, a connecting piece is arranged in front of the connecting pipe, a connector is arranged in front of the connecting piece, the connector is fixedly installed on a valve body, a hand wheel is fixedly arranged on the valve body, and the hand wheel is connected with the connecting piece. A water outlet pipe is arranged on the other side of the valve body, a water outlet flange is arranged at the other end of the water outlet pipe, and the connector convenient to install comprises an adjusting mechanism and a limiting installation mechanism. According to the flat valve convenient to install, the adjusting mechanism is arranged, the position of the blocking piece in the pipe body is controlled by controlling the jacking pipe so as to control on-off of liquid in a pipeline, when the valve body needs to be replaced, control over the blocking piece by the jacking pipe is relieved, under the high pressure intensity of the liquid, the blocking piece abuts against the position of the water outlet to seal the water outlet, and the liquid in the pipe body is prevented from flowing out; and the replacement personnel are injured.

Description

Technical Field

[0001] The utility model relates to the technical field of flat valve installation, in particular to a flat valve which is easy to install. Background Art

[0002] The slab valve is a special type of valve characterized by a sliding valve with parallel gates as the closing element. Its structural design makes it suitable for controlling high-pressure, high-temperature, and corrosive media. In the oil and gas industry, slab valves are widely used in pipelines as opening and closing devices to control the flow of fluids. They are also used in chemical, environmental, and municipal pipeline systems to control the treatment and discharge of fluids such as sewage and exhaust gases.

[0003] Slab valves can be designed with orifices and gate valves, or without orifices. Orifice-mounted gate valves are suitable for pipelines requiring a purge system, while non-orifice-mounted gate valves are suitable for pipelines without a purge system. Full-bore gate valves offer a smooth flow path and are suitable for ball-passing applications, such as shut-off valves in West-East Gas Pipeline projects. Venturi-mounted valves can reduce disc and seat dimensions, lower opening and closing forces or torque, and reduce actuator costs.

[0004] Structurally, flat plate valves typically utilize a floating seat, offering bidirectional opening and closing, reliable sealing, and flexible opening and closing. The gate disc features guide strips for precise guidance, and the sealing surface is spray-welded with carbide for erosion resistance. The valve body boasts a high load-bearing capacity and a straight-through flow passage. When fully open, the passage intersects the gate disc's guide hole, resembling a straight pipe, resulting in minimal flow resistance. The valve stem utilizes composite packing and multiple seals, ensuring a reliable seal and low friction.

[0005] According to the description on the patent website of a flat plate valve that is easy to install (authorization publication number: CN221569481U), "The utility model discloses a flat plate valve that is easy to install, which includes a valve body, a pipe and a fixing sleeve. The fixing sleeve includes an upper shell and a lower shell. The right end of the upper shell is hinged to the right end of the lower shell. A fastener is provided on the left end of the upper shell. The upper shell is fixedly connected to the lower shell by the fastener; limiting holes are respectively provided on both sides of the upper shell and the lower shell. The limiting holes are provided in three groups. A spring is provided in each limiting hole. The spring is fixedly connected to the upper shell and the lower shell. The other end of the spring is fixedly connected to the limiting plate. This device solves the problem that current flat plate valves are difficult to install."

[0006] In view of the above-mentioned related technologies, the inventors believe that when replacing or repairing the valve body, the residual liquid in the tube body is not taken into consideration, and these liquids may cause damage to the replacement personnel. Therefore, it is urgent to improve a flat valve that is easy to install to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to provide a flat plate valve that is easy to install, so as to solve the problem in the background art that residual liquid in the pipe body flows out and causes damage to the operator when replacing the flat plate valve.

[0008] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a flat valve that is easy to install, comprising a connecting pipe, a connecting piece is provided in front of the connecting pipe, a connecting head is provided in front of the connecting piece, the connecting head is fixedly installed on the valve body, a handwheel is fixedly provided on the upper part of the valve body, a water outlet pipe is provided on the other side of the valve body, and a water outlet flange is provided at the other end of the water outlet pipe, and the connection that is easy to install includes an adjustment mechanism and a limit installation mechanism.

[0009] Preferably, the connecting pipe and the connecting piece are fixedly connected by welding, the connecting head and the connecting piece are slidingly connected by a notch, the connecting head and the valve body are fixedly connected by welding, and the valve body and the water outlet pipe and the water outlet flange are all fixedly connected by welding.

[0010] Preferably, the adjustment mechanism includes a connecting flange, a through hole is fixedly provided on the connecting flange, the connecting flange is fixedly mounted on the connecting head by welding, and a limiting piece is provided at the bottom of the connecting flange.

[0011] Preferably, limiting grooves are provided at the top and bottom of the connector, fixing pieces are provided in the limiting grooves, threaded rods are provided above and below the connector, the threaded rods pass through the fixing pieces, and an adjusting nut is threadedly connected to the threaded rods.

[0012] Preferably, a bearing is fixedly installed in the valve body, one end of the threaded rod is fixedly installed on the inner side of the bearing, the outer side of the bearing is fixedly installed on the valve body, a top pipe is movably installed in the connecting head, and the fixing piece is fixedly connected to the top pipe.

[0013] Preferably, the position limiting installation mechanism includes a connecting piece, a notch is provided on the connecting piece, a position limiting hole is provided at the bottom of the notch, and a mounting hole is provided on the connecting piece.

[0014] Preferably, a limit plate is provided in the connecting pipe, a spring is fixedly connected to the limit plate, and a baffle is fixedly installed at the other end of the spring. The baffle is just larger than the water outlet and smaller than the inner diameter of the connecting piece, and seals the water inlet under the action of the spring.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This easy-to-install flat valve features an adjustment mechanism, including an adjusting nut, that controls the movement of a fixed component. The moving fixed component then drives the connected jacking pipe, pushing the baffle to control the flow of water. This saves time running back and forth to open and close the valve during installation. It also prevents the possibility of liquid leaking out of the water pipe when replacing the flat valve, which could pose a safety threat to the replacement personnel if the sealing mechanism is not installed. This structure effectively avoids such problems.

[0017] 2. This flat valve is easy to install. The connecting flange is stuck inside through the notch design. The limit block designed on the connecting flange cooperates with the limit hole designed at the bottom of the notch to better limit its entry and prevent deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the valve body adjustment mechanism of the utility model;

[0020] Figure 3 This is a partial cross-sectional view of the front portion of the valve body of the present utility model;

[0021] Figure 4 This is a schematic diagram of the appearance structure of the connection limit part of the utility model;

[0022] Figure 5 It is a half-section schematic diagram of the connecting part of the utility model.

[0023] In the figure: 1 connecting pipe, 2 connecting part, 3 connecting head, 4 valve body, 5 handwheel, 6 water outlet pipe, 7 water outlet flange, 201 connecting flange, 202 through hole, 203 top pipe, 204 limiter, 205 limit groove, 206 threaded rod, 207 fixing part, 208 adjusting nut, 209 bearing, 301 notch, 302 mounting hole, 303 limit hole, 304 baffle, 305 spring, 306 limit plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1:

[0026] See also Figure 1-Figure 3The utility model provides a technical solution: a flat valve that is easy to install, including a connecting pipe 1, characterized in that: a connecting piece 2 is provided in front of the connecting pipe 1, a connecting head 3 is provided in front of the connecting piece 2, the connecting head 3 is fixedly installed on the valve body 4, a hand wheel 5 is fixedly provided on the upper part of the valve body 4, a water outlet pipe 6 is provided on the other side of the valve body 4, and a water outlet flange 7 is provided at the other end of the water outlet pipe 6. The connection that is easy to install includes an adjustment mechanism and a limit installation mechanism.

[0027] The connecting pipe 1 and the connecting piece 2 are fixedly connected by welding, the connecting head 3 and the connecting piece 2 are slidingly connected through the notch 301, the connecting head 3 and the valve body 4 are fixedly connected by welding, and the valve body 4 and the water outlet pipe 6 and the water outlet flange are all fixedly connected by welding.

[0028] The adjustment mechanism includes a connecting flange 201 , on which a through hole 202 is fixedly provided. The connecting flange 201 is fixedly mounted on the connecting head 3 by welding, and a limiting member 204 is provided at the bottom of the connecting flange 201 .

[0029] Limiting grooves 205 are provided at the top and bottom of the connector 3, and fixing members 207 are provided in the limiting grooves 205. Threaded rods 206 are provided above and below the connector 3, and the threaded rods 206 pass through the fixing members 207. An adjusting nut 208 is threadedly connected to the threaded rods 206.

[0030] A bearing 209 is fixedly mounted within the valve body 4. One end of the threaded rod 206 is fixedly mounted on the inner side of the bearing 209, while the outer side of the bearing 209 is fixedly mounted on the valve body. A top pipe 203 is movably mounted within the connector 3, and a fixing member 207 is fixedly connected to the top pipe 203. The flat valve is inserted into the notch 301 of the connector 2, so that the stopper 204 fits in the stopper hole 303 and fits neatly within the stopper hole. The adjusting nut 208 is then screwed, and the fixing member 207, which is resting against the adjusting nut 208, is moved toward the connecting flange 201. The top pipe 203, which is fixedly connected to the fixing member 207, also moves toward the connecting flange 201. The front end of the top pipe 207 is a trapezoidal boss with a through hole to facilitate water flow through the flat valve.

[0031] Example 2:

[0032] See also Figure 4-Figure 5 The utility model provides a technical solution: a flat valve that is easy to install, a limit installation mechanism includes a connecting piece 2, a notch 301 is provided on the connecting piece, a limit hole 303 is provided at the bottom of the notch 301, and a mounting hole 302 is provided on the connecting piece 2.

[0033] A limit plate 306 is provided in the connecting pipe 1 , a spring 305 is fixedly connected to the limit plate 306 , and a blocking piece 304 is fixedly mounted on the other end of the spring 305 .

[0034] As the connecting flange is opened in the slot 301, the limit piece 204 cooperates with the limit hole 303, and the through hole 202 cooperates with the mounting hole 302 to assist in positioning it. At this time, the bolt is passed through the mounting hole 302 and the through hole 202 to fix it. In Example 1, the top pipe 203 moves toward the connecting flange and just against the baffle 304. The baffle 304 is pushed backward to make it connected. When the flat valve needs to be replaced, the adjusting nut is loosened, and the baffle 304 pushes the top pipe 203 back under the action of strong water pressure. At the same time, the baffle continues to seal the water outlet. At this time, the bolt is loosened again, and the flat valve is taken out of the slot 301 to complete the replacement. There is no need to find the main water valve to close it before replacing it.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A flat valve that is easy to install, comprising a connecting pipe (1), characterized in that: A connecting piece (2) is provided in front of the connecting pipe (1), a connecting head (3) is provided in front of the connecting piece (2), the connecting head (3) is fixedly mounted on the valve body (4), a hand wheel (5) is fixedly mounted on the upper portion of the valve body (4), a water outlet pipe (6) is provided on the other side of the valve body (4), and a water outlet flange (7) is provided at the other end of the water outlet pipe (6), and the connection for easy installation includes an adjustment mechanism and a limit installation mechanism.

2. A flat plate valve that is easy to install according to claim 1, characterized in that: The connecting pipe (1) and the connecting piece (2) are fixedly connected by welding, the connecting head (3) and the connecting piece (2) are slidably connected via a notch (301), the connecting head (3) and the valve body (4) are fixedly connected by welding, and the valve body (4) and the water outlet pipe (6) and the water outlet flange are all fixedly connected by welding.

3. The flat plate valve that is easy to install according to claim 1, characterized in that: The adjustment mechanism comprises a connecting flange (201), a through hole (202) is fixedly provided on the connecting flange (201), the connecting flange is fixedly mounted on the connecting head (3) by welding, and a limiting member (204) is provided at the bottom of the connecting flange (201).

4. The flat plate valve that is easy to install according to claim 3, characterized in that: Limiting grooves (205) are provided at the top and bottom of the connector (3), and fixing members (207) are provided in the limiting grooves (205). Threaded rods (206) are provided above and below the connector (3), and the threaded rods (206) pass through the fixing members (207). An adjusting nut (208) is threadedly connected to the threaded rods (206).

5. The flat plate valve that is easy to install according to claim 4, characterized in that: A bearing (209) is fixedly installed in the valve body (4), one end of the threaded rod (206) is fixedly installed on the inner side of the bearing (209), and the outer side of the bearing (209) is fixedly installed on the valve body. A top pipe (203) is movably installed in the connector (3), and the fixing member (207) is fixedly connected to the top pipe (203).

6. The flat plate valve that is easy to install according to claim 1, characterized in that: The position-limiting mounting mechanism comprises a connecting piece (2), a notch (301) is provided on the connecting piece, a position-limiting hole (303) is provided at the bottom of the notch (301), and a mounting hole (302) is provided on the connecting piece (2).

7. The flat plate valve that is easy to install according to claim 1, characterized in that: A limiting plate (306) is provided in the connecting pipe (1), a spring (305) is fixedly connected to the limiting plate (306), and a blocking piece (304) is fixedly mounted on the other end of the spring (305).

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