CN212080257U - A simple and quick installation type anti-return valve - Google Patents

Abstract

The utility model discloses a simple quick-installation type anti-return valve, which comprises a valve body, wherein a liquid passage port and a flow stop port are opened in the valve body; An installation device is connected to the outlet, a plurality of through holes are annularly arranged on the stop port, a connection port is opened in the middle of the valve body, and a sealing flange is sealed and connected in the connection port, and the sealing flange is located in the valve body A first spring and a sleeve are welded on one side of the valve plate, a valve plate is welded to the first spring, and a buffer device is connected to the valve plate. In the utility model, a plurality of triangular grooves are arranged on the outer wall of the pipeline, and the inflation piston in the gas cylinder can be continuously compressed so that the abutment block connected with the air outlet of the gas cylinder can fully abut against the outer wall of the nozzle, so as to realize the stable fixation of the nozzle; The joints between the valve plate, the sleeve and the valve body are connected with each other by magnetic substances, and the flexible contact will not cause great damage to the sleeve or the valve body under the impact of water.

Description

A simple and quick installation type anti-return valve

technical field

The utility model relates to the technical field of check valves, in particular to a simple quick-installation type anti-return valve.

Background technique

Check valve refers to a valve whose opening and closing part is a circular disc and acts by its own weight and medium pressure to block the backflow of the medium. It is an automatic valve, also known as a check valve, a one-way valve, a return valve or an isolation valve. The movement mode of the valve disc is divided into lift type and swing type. The check valve is often used as the bottom valve of the pumping device, which can prevent the backflow of water. The solid-stop valve is used in combination with the globe valve, which can play the role of safety isolation.

The check valve is often used for the anti-backflow effect of fire pipelines, but in the anti-return valve in the prior art, since the two outlets of the check valve are connected and fixed by the connecting flange, in life due to fire emergency, It is more complicated to install the sealing flange. At the same time, since the impact between the valve plate, the sleeve and the valve body is a rigid impact, during use, due to the large water flow and fast flow rate during fire fighting, it will continuously impact the inside of the valve body. , causing damage to the sleeve and the valve body, and even destroying the internal structure of the valve.

Utility model content

The purpose of the utility model is to solve the shortcomings of the prior art, and propose a simple and quick-installation type anti-return valve.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A simple and quick-installation type anti-return valve, comprising a valve body, a liquid passage port and a flow stop port are opened in the valve body, the outlet of the liquid passage port is sealed and connected with a connecting pipe, and the outlet of the liquid passage port is connected with a quick-release port. The installation device for installing the nozzle, the stop port is annularly provided with a plurality of through holes, the middle part of the valve body is provided with a connection port, and the connection port is sealed and connected with a sealing flange, and the sealing flange is located in the valve body. A first spring and a sleeve are welded on one side, the sleeve is sleeved on the outside of the first spring, a valve plate is welded on the side of the first spring away from the sealing flange, and a buffer device is connected to the valve plate .

Preferably, the installation device includes a connecting plate welded on the liquid port, a chute is formed in the connecting plate, a pressure plate is slidably connected in the chute, and a transmission block is welded to the part of the pressure plate outside the chute. The transmission block penetrates the outer wall of the valve body, a layer of sealing tape is glued at the connection between the transmission block and the valve body, and the bottom of the transmission block is connected with the outer wall of the connecting pipe.

Preferably, the outer wall of the nozzle is provided with a plurality of triangular grooves, and one end of the transmission block close to the nozzle is provided with an arc-shaped triangular structure, and the arc-shaped triangular structure is in clearance fit with the triangular grooves.

Preferably, a part of the bottom of the pressure plate in the chute is provided with an air cylinder, the air cylinder is provided with an inflatable piston, the inflatable piston is welded to the bottom of the pressure plate, and a second spring is connected to the outside of the air cylinder, and the second spring The bottom is welded on the bottom of the chute, the air outlet of the gas cylinder is sealed and connected with abutting block, and the abutting block is provided with a gas valve.

Preferably, the buffer device includes a plurality of magnetic coils, the magnetic coils are glued to the bottom of the sleeve, the material of the valve plate is set to be a magnetic material, and a small magnetic block is provided at the position where the valve body and the valve plate abut.

Preferably, the sealing flange is annularly provided with a plurality of threaded holes, and each of the threaded holes is threadedly connected with a bolt, and the plurality of bolts are bolted to connect the sealing flange and the valve body at the same time.

Compared with the prior art, the advantages of the present utility model are:

1. The utility model is provided with a plurality of triangular grooves on the outer wall of the pipe, so that when the pipe extends inward, the pipe wall and the plurality of triangular grooves collide repeatedly, so that the transmission block on the connecting plate does a reciprocating linear motion, And realize the function of continuously compressing the inflation piston in the air cylinder, so that the block connected to the air outlet of the air cylinder fully offsets the outer wall of the nozzle, and the in-depth adjustment of the depth can realize the stability of the nozzle. The deeper the depth, the more stable the nozzle is fixed. , and because of the simple operation, the installation is quicker and the preparation time is short, which is beneficial to the emergency situation of fire fighting.

2. The utility model also designs a buffer device, and uses magnetic substances to connect each other at the joints between the valve plate, the sleeve and the valve body. Because the contact between the magnetic substances is flexible contact, the valve plate is in the water. When the valve body is turned on and off, it will not cause great damage to the sleeve or the valve body under the impact of water.

Description of drawings

Fig. 1 is the structural representation of a kind of simple and quick installation type anti-return valve proposed by the utility model;

Figure 2 is an enlarged schematic diagram of part A in a simple quick-installation type anti-return valve proposed by the utility model;

FIG. 3 is a schematic view of the mechanism of a connecting plate in a simple quick-installation type anti-return valve proposed by the utility model.

FIG. 4 is an enlarged schematic view of part B of a simple quick-installation type anti-return valve proposed by the present invention.

In the figure: 1 valve body, 2 sealing flange, 3 bolts, 4 valve plate, 5 sleeve, 6 first spring, 7 connecting plate, 8 sliding groove, 9 pressing plate, 10 transmission block, 11 connecting pipe, 12 triangular groove, 13 Inflatable piston, 14 gas cylinder, 15 second spring, 16 block, 17 valve, 18 magnetic coil, 19 small magnetic block.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Example

Referring to Figures 1-4, a simple quick-installation type anti-return valve includes a valve body 1. The valve body 1 is provided with a liquid port and a stop port. The liquid port is sealed and connected with a connecting pipe 11. The installation device is connected with the quick-installation nozzle 11, the stop port is annularly provided with a plurality of through holes, the middle of the valve body 1 is provided with a connection port, and the connection port is sealed and connected with a sealing flange 2, and the sealing flange 2 is located in the valve body 1. A first spring 6 and a sleeve 5 are welded on one side of the first spring 6, the sleeve 5 is sleeved on the outside of the first spring 6, and a valve plate 4 is welded on the side of the first spring 6 away from the sealing flange 2, and the valve plate 4 is connected There are buffers.

The installation device includes a connecting plate 7 welded on the liquid port, a chute 8 is opened in the connecting plate 7, a pressure plate 9 is slidably connected in the chute 8, and a transmission block 10 is welded to the part of the pressure plate 9 outside the chute 8, and the transmission block 10 runs through the outer wall of the valve body 1, a layer of sealing tape is glued at the connection between the transmission block 10 and the valve body 1, the bottom of the transmission block 10 is connected with the outer wall of the connecting pipe 11, the outer wall of the connecting pipe 11 is provided with a plurality of triangular grooves 12, the transmission block 10 The end close to the nozzle 11 is set as an arc-shaped triangular structure, and the arc-shaped triangular structure is in clearance fit with the triangular groove 12. When the nozzle 11 moves into the valve body 1, the arc-shaped triangular structure will be matched with the triangular groove 12. Move and move down again, so as to realize the reciprocating motion of the inflation piston 13 fixedly connected below the pressure plate 9 .

A gas cylinder 14 is provided at the bottom of the part of the pressure plate 9 in the chute 8, and the gas cylinder 14 is provided with an inflatable piston 13. The inflatable piston 13 is welded with the bottom of the pressure plate 9, and the gas cylinder 14 is externally connected with a second spring 15. At the bottom of the chute 8, the air outlet of the air cylinder 14 is sealed and connected with a block 16, and the second spring 15 is set so that the elastic modulus is greater than the inflation resistance of the air cylinder 14, so that when the second spring 15 is in a stretched state, the pressure plate is subjected to the first Under the combined force of the downward resistance of the two springs 15 and the inflation piston 13, the inflation piston 13 is pressed downwardly, so that the inflation piston 13 realizes the reciprocating motion, and the air cylinder 14 is provided with a one-way valve, during the reciprocating motion of the inflation piston 13, it is continuously The outside air is pressed into the air cylinder 14, and enters the abutment block 16 through the air outlet of the air cylinder 14, so as to realize the function of inflating the abutment block 16. The abutment block 16 is hollow and has elasticity. It will gradually expand, and make the side close to the nozzle 11 fully abut against the outer wall of the nozzle 11 to achieve the fixing effect of the nozzle 11. At the same time, the abutment block 16 is sealed and connected with the valve 17, and the gas in the abutment block 16 can be released by pulling out the valve 17. , so as to achieve the effect of breaking away from the fixed.

The buffer device includes a plurality of magnetic coils 18. The magnetic coils 18 are glued to the bottom of the sleeve 5. The material of the valve plate 4 is set to be a magnetic material. A small magnetic block 19 is set at the position where the valve body 1 and the valve plate 4 are in contact. The magnetic coil 18 and The surfaces of the small magnetic block 19 opposite to the valve plate 4 are respectively set to N pole and S pole, and the opposite surfaces of the valve plate 4 to the magnetic coil 18 and the small magnetic block 19 are all set to the same level, so that no matter when the valve plate 4 is exposed to water, the When the pressure is displaced upward or downward, there will be no direct rigid collision, so as to reduce the damage to the valve body 1 and the sleeve 5. The sealing flange 2 is annularly provided with a plurality of threaded holes, and each threaded hole is threadedly connected. There are bolts 3, and multiple bolts 3 are bolted to connect the sealing flange 2 and the valve body 1 at the same time.

In the present invention, the way of installing the connecting pipe 11 and the valve body 1 only needs to move the connecting pipe 11 to the side of the valve body 1 , and under the action of the triangular groove 12 and the transmission block 10 for many times, the inflation piston 13 keeps moving up and down. , so as to realize the inflation operation of the abutment block 16, and the side of the abutment block 16 opposite to the nozzle 11 is provided with a non-slip layer, and a layer of sealing ring is glued outside the nozzle 11, so that when the abutment block 16 fixes the nozzle 11, the nozzle 11 has been Installed in the valve body 1, thus avoiding the use of bolts and sealing flanges, reducing the workload and improving the fire efficiency.

The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Equivalent replacement or modification of the technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (6)

1. The utility model provides a simple and easy ready-package fire control check valve, includes valve body (1), its characterized in that, logical liquid mouth and flow stopping mouth have been seted up in valve body (1), logical liquid mouth goes out sealing connection and takes over (11), logical liquid mouth goes out to be connected with the installation device who installs fast and take over (11), the flow stopping mouth ring shape is provided with a plurality of through-holes, the connector has been seted up at the middle part of valve body (1), sealing connection has sealing flange (2) in the connector, one side welding that sealing flange (2) are located valve body (1) has first spring (6) and sleeve (5), sleeve (5) cup joint in the outside of first spring (6), one side welding that sealing flange (2) were kept away from in first spring (6) has valve plate (4), be connected with buffer on valve plate (4).

2. The simple and easy ready-package fire control check valve of claim 1, characterized in that, the installation device includes a connecting plate (7) welded at the liquid through opening, a chute (8) is opened in the connecting plate (7), a pressing plate (9) is connected in the chute (8) in a sliding manner, a transmission block (10) is welded on the portion of the pressing plate (9) outside the chute (8), the transmission block (10) penetrates through the outer wall of the valve body (1), a layer of sealing rubber strip is glued at the joint of the transmission block (10) and the valve body (1), and the bottom of the transmission block (10) is connected with the outer wall of the connecting pipe (11).

3. The simple and easy ready-package fire control check valve of claim 2, characterized in that, the outer wall of the connecting pipe (11) is provided with a plurality of triangular grooves (12), one end of the transmission block (10) close to the connecting pipe (11) is provided with an arc-shaped triangular structure, and the arc-shaped triangular structure is in clearance fit with the triangular grooves (12).

4. The simple and quick-mounting fire-fighting check valve as recited in claim 2, characterized in that an air cylinder (14) is arranged at the bottom of a part of the pressure plate (9) in the chute (8), an inflating piston (13) is arranged on the air cylinder (14), the inflating piston (13) is welded to the bottom of the pressure plate (9), a second spring (15) is sleeved outside the air cylinder (14), the bottom of the second spring (15) is welded to the bottom of the chute (8), a gas outlet of the air cylinder (14) is hermetically connected with a resisting block (16), and a gas valve (17) is arranged on the resisting block (16).

5. A simple and quick-mounting fire-fighting check valve as recited in claim 1, characterized in that the damping device comprises a plurality of magnetic rings (18), the magnetic rings (18) are glued on the bottom of the sleeve (5), the valve plate (4) is made of magnetic material, and small magnetic blocks (19) are arranged at the positions where the valve body (1) and the valve plate (4) are abutted.

6. The simple and easy ready-package fire control check valve of claim 1, characterized in that, a plurality of screw holes are opened to sealing flange (2) ring form, and each screw hole all threaded connection has bolt (3), and a plurality of bolts (3) are bolted connection sealing flange (2) and valve body (1) simultaneously.

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