Stable-control PFA safety valve

Abstract

The utility model relates to the field of PFA safety valves, in particular to a stable-control PFA safety valve. Comprising a safety valve body, the safety valve body comprises a valve body, one side of the valve body is communicated with a water outlet, the other side of the valve body is communicated with a water inlet, an adjuster is installed on the upper surface of the valve body, adjusting devices are arranged on the arc surface of the water outlet and the arc surface of the water inlet, and each adjusting device comprises a fixing rod. The fixing rod is fixedly connected with the valve body, two clamping openings are formed in the end, away from the valve body, of the fixing rod, and one clamping opening is fixedly connected with the fixing rod. According to the PFA safety valve stable in control, when the pipe body needs to be connected with the safety valve, the pipe body can be firmly fixed to the safety valve through the adjusting device serving as a medium, the fixing effect is good, and the situation that the safety valve and the pipe body are loosened due to the fact that original waterproof adhesive tape is used for connection can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of PFA safety valves, in particular to a PFA safety valve with stable control. Background Art

[0002] The PFA safety valve can control the flow rate of water inside its valve body, the control is relatively stable, and the valve body has high corrosion resistance.

[0003] The utility model with announcement number CN213271177U discloses a full-open threaded safety valve, and the technical solution is as follows: it includes a valve body, the middle end of the top of the valve body is threadedly connected with a threaded rod, the bottom of the threaded rod is movably connected with a fixed block through a bearing, the bottom of the fixed block is fixedly connected with a second spring, and the bottom of the second spring is fixedly connected with a connecting rod. When the utility model rotates the threaded rod, the threaded rod moves downward along the valve body, the movement of the threaded rod drives the fixed block to move, the movement of the fixed block drives the second spring to move, the movement of the second spring drives the connecting rod to move, the movement of the connecting rod drives the first spring to move downward, the downward movement of the first spring drives the sealing valve seat and the sealing gasket to move downward, when the sealing gasket contacts the surface of the inner cavity of the valve body, under the continuous rotation of the threaded rod, the first spring and the second spring both produce elastic deformation, and at the same time, a relative force is exerted on the sealing valve seat and the sealing gasket, so that the sealing gasket is tightly attached to the inner surface of the valve body.

[0004] In view of the above-mentioned relevant contents, the following technical defects are considered to exist: the connection between the safety valve with relatively stable control and the water pipe is usually connected with waterproof tape. This connection method has poor stability, and the safety valve and the water pipe are very easy to loosen, which has poor practicality. Workers need to frequently check the connection of the pipe body to avoid looseness between the safety valve and the water pipe. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the connection between the safety valve and the water pipe, which is relatively stable in control, is usually connected with a waterproof tape, the stability of this connection method is poor, the safety valve and the water pipe are very easy to loosen, the practicality is poor, and the workers need to frequently check the connection of the pipe body to avoid the safety valve and the water pipe from loosening.

[0006] In order to solve the above technical problems, the utility model provides a PFA safety valve with stable control, including: a safety valve body, the safety valve body includes a valve body, one side of the valve body is connected to a water outlet, the other side of the valve body is connected to a water inlet, a regulator is installed on the upper surface of the valve body, the arc surfaces of the water outlet and the water inlet are provided with an adjusting device, the adjusting device includes a fixing rod, the fixing rod is fixedly connected to the valve body, and two clamps are provided at one end of the fixing rod away from the valve body, one of the clamps is fixedly connected to the fixing rod, one side of the two clamps is fixedly connected to a threaded ring, the inner walls of the two threaded rings are threaded with the same screw, the other sides of the two clamps are fixedly connected to a connecting block, the inner walls of the two connecting blocks are slidably penetrated with the same limiting rod, the inner wall of one of the clamps is fixedly connected to two magnetic blocks, and the inner wall of the other clamp is fixedly connected to a metal plate, and the two magnetic blocks are adsorbed to the metal plate.

[0007] The effect achieved by the above components is: by connecting the pipe body to the water outlet and the water inlet respectively, the water flow in the pipe body can be regulated by the safety valve body. When the water flow is large, the safety valve body will increase the water output of the valve body under the drive of the regulator, and will reduce the water output of the valve body when the water flow is weak. The pipe body and the safety valve body are usually connected by first wrapping waterproof tape around the water outlet and water inlet surfaces of the safety valve body and the inner wall of the pipe body, and then connecting the pipe body to the safety valve body by pressing. This method of connection has poor stability, is very easy to loosen, and has poor practicality. Workers need to frequently check the connection of the pipe body to avoid loosening. When the situation occurs and the pipe body needs to be connected to the safety valve body, first put the pipe body inside the two clamps and on the surface of the water outlet or the water inlet, push the clamp at the lower end of the water outlet or the water inlet toward the clamp at the upper end, and the movement of the lower clamp will move through the limit rod in the connecting block toward the upper clamp. At this time, the metal plate on the lower clamp will be adsorbed with the magnetic block on the upper clamp, so that the two can be temporarily fixed together, and the threaded rings installed on the sides of the two clamps are fixed with screws, so that the two clamps can be fixed, thereby completing the installation of the pipe body on the water outlet or the water inlet, with good stability and strong practicality.

[0008] Preferably, a plurality of protrusions are fixedly connected to one side of the two clamps that are close to each other, and the plurality of protrusions are evenly distributed on one side of the clamps.

[0009] The effect achieved by the above components is that after the clamp is in contact with the tube body, the protrusion installed on the clamp can increase the friction between the tube body and the clamp, thereby improving the stability of the connection between the tube body and the clamp.

[0010] Preferably, a sealing ring is fixedly connected to one side of the two clamping openings away from the valve body, and the cross section of the sealing ring is arc-shaped.

[0011] The effect achieved by the above components is that when the clamp is used to fix the pipe body connected to the safety valve body, the sealing ring installed on the clamp can improve the sealing effect between the pipe body and the clamp.

[0012] Preferably, the limiting rod is a titanium alloy rod.

[0013] The effect achieved by the above components is that the surface of the limit rod made of titanium alloy is relatively hard, which also makes it difficult for the surface of the limit rod to deform when the limit rod slides in the connecting block for a long time, and the service life is longer.

[0014] Preferably, the arc surface of the regulator is provided with an auxiliary device, and the auxiliary device includes a fixing ring, which is fixedly connected to the regulator, an adjusting rod is fixedly connected to one end of the arc surface of the fixing ring, a sleeve is threadedly connected to one end of the adjusting rod away from the fixing ring, the adjusting ring is rotatably connected to the side of the sleeve away from the fixing ring, a connecting rod is fixedly connected to one end of the arc surface of the adjusting ring, and the connecting rod is fixedly connected to the valve body.

[0015] The effect achieved by the above components is: the height of the regulator can control the size of the water flow between the water outlet and the water inlet. When the water flow is large, the spring inside the regulator will automatically drive the regulator to move upward to increase the size of the water flow in the safety valve. When it is necessary to adjust the height of the regulator to control the water flow in the safety valve, press the regulator downward, connect the adjusting rod with the sleeve, and then rotate the sleeve in the adjusting ring. The rotation of the sleeve can drive the adjusting rod to move in the direction of the adjusting ring, so that the height of the regulator can be adjusted through the fixed ring, so as to achieve the purpose of controlling the size of the water flow.

[0016] Preferably, the arc surface of the sleeve is provided with a plurality of anti-skid grooves, and the plurality of anti-skid grooves are evenly distributed on the arc surface of the sleeve.

[0017] The effect achieved by the above components is that when the sleeve needs to be rotated, the anti-slip grooves provided on the sleeve can increase the friction between the worker's hand and the sleeve, so that the effect of rotating the sleeve is better.

[0018] Preferably, one end of the adjusting rod away from the fixing ring is fixedly connected to a guide block, and the cross section of the guide block is arc-shaped.

[0019] The effect achieved by the above components is that when the adjusting rod is used to contact the sleeve, the guide block installed on the adjusting rod can reduce the angle required for the contact between the two, thereby increasing the speed when the adjusting rod is connected to the sleeve.

[0020] Compared with the related art, the PFA safety valve with stable control provided by the utility model has the following beneficial effects:

[0021] The utility model provides a PFA safety valve with stable control. By arranging an adjusting device, when it is necessary to connect a pipe body with the safety valve, the adjusting device can be used as a medium to firmly fix the pipe body on the safety valve, and the fixing effect is good, which can avoid using the original waterproof tape for connection, resulting in looseness between the safety valve and the pipe body.

[0022] By setting up auxiliary devices, the regulator can autonomously control the water flow inside the safety valve. When encountering special circumstances and the adjustment angle of the regulator needs to be fixed, the height of the regulator can be fixed through the auxiliary device, so as to achieve the purpose of controlling the water flow in special circumstances. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a PFA safety valve with stable control provided by the utility model;

[0024] Figure 2 for Figure 1 The structural schematic diagram of the regulating device shown;

[0025] Figure 3 for Figure 1 The schematic diagram of the split structure of the regulating device shown;

[0026] Figure 4 for Figure 1 A schematic diagram of the structure of the auxiliary device shown;

[0027] Figure 5 for Figure 1 Schematic diagram of the disassembled structure of the auxiliary device shown.

[0028] Numbers in the figure: 1. Safety valve body; 11. Water outlet; 12. Water inlet; 13. Valve body; 14. Regulator; 2. Adjusting device; 201. Fixing rod; 202. Clamp; 203. Threaded ring; 204. Connecting block; 205. Limiting rod; 206. Screw; 207. Magnetic block; 208. Metal plate; 209. Sealing ring; 210. Bump; 3. Auxiliary device; 31. Fixing ring; 32. Adjusting rod; 33. Connecting rod; 34. Adjusting ring; 35. Sleeve; 36. Anti-slip groove; 37. Guide block. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0031] See also Figures 1 to 5 The utility model provides a PFA safety valve with stable control, comprising: a safety valve body 1, the safety valve body 1 comprising a valve body 13, one side of the valve body 13 is connected to a water outlet 11, the other side of the valve body 13 is connected to a water inlet 12, a regulator 14 is installed on the upper surface of the valve body 13, the arc surfaces of the water outlet 11 and the water inlet 12 are both provided with an adjusting device 2, and the arc surface of the regulator 14 is provided with an auxiliary device 3.

[0032] In the embodiments of the present invention, please refer to Figure 2 and Figure 3The regulating device 2 includes a fixing rod 201, which is fixedly connected to the valve body 13. One end of the fixing rod 201 away from the valve body 13 is provided with two clamps 202, one of which is fixedly connected to the fixing rod 201, one side of the two clamps 202 is fixedly connected with a threaded ring 203, the inner wall threads of the two threaded rings 203 are penetrated with the same screw 206, the other sides of the two clamps 202 are fixedly connected with a connecting block 204, the inner walls of the two connecting blocks 204 are slidably penetrated with the same limiting rod 205, the inner wall of one of the clamps 202 is fixedly connected with two magnetic blocks 207, the inner wall of the other clamp 202 is fixedly connected with a metal plate 208, the two magnetic blocks 207 are adsorbed with the metal plate 208, and the pipe body is divided into The safety valve body 1 is connected to the water outlet 11 and the water inlet 12 respectively, and the water flow in the pipe body can be regulated by the safety valve body 1. When the water flow is large, the safety valve body 1 will increase the water output of the valve body 13 under the drive of the regulator 14, and will reduce the water output of the valve body 13 when the water flow is weak. The pipe body and the safety valve body 1 are usually connected by: firstly wrapping the waterproof tape around the surface of the water outlet 11 and the water inlet 12 of the safety valve body 1 and the inner wall of the pipe body, and then connecting the pipe body and the safety valve body 1 by pressing. This method has poor stability and is very easy to loosen. It has poor practicality. Workers need to frequently check the connection of the pipe body to avoid loosening. When the pipe body needs to be connected to the safety valve body 1, first put the pipe body on the two clamps. The inner part of 202, the surface of the water outlet 11 or the water inlet 12, pushes the clamp 202 at the lower end of the water outlet 11 or the water inlet 12 toward the clamp 202 at the upper end, and the movement of the lower clamp 202 will move through the limit rod 205 in the connecting block 204 toward the upper end clamp 202. At this time, the metal plate 208 on the lower clamp 202 will be adsorbed with the magnetic block 207 on the upper end clamp 202, so that the two can be temporarily fixed together, and the threaded ring 203 installed on the side of the two clamps 202 is fixed with the screw 206, so that the two clamps 202 can be fixed, thereby completing the installation of the pipe body on the water outlet 11 or the water inlet 12, and the stability effect is good, the practicability is strong, and the two clamps 202 are close to each other. The near side is fixedly connected with a plurality of protrusions 210, and the plurality of protrusions 210 are evenly distributed on one side of the clamp 202. After the clamp 202 is used to contact the tube body, the protrusions 210 installed on the clamp 202 can increase the friction between the tube body and the clamp 202, thereby improving the stability of the connection between the tube body and the clamp 202. The two clamps 202 are fixedly connected with a sealing ring 209 on the side away from the valve body 13. The cross section of the sealing ring 209 is arc-shaped. When the clamp 202 is used to fix the tube body connected to the safety valve body 1, the sealing ring 209 installed on the clamp 202 can improve the sealing effect between the tube body and the clamp 202. The limit rod 205 is a titanium alloy rod. The limit rod 205 made of titanium alloy has a relatively hard rod surface.This also makes it difficult for the surface of the limiting rod 205 to deform when it slides in the connecting block 204 for a long time, and the service life is longer.

[0033] In the embodiments of the present invention, please refer to Figure 4 and Figure 5 The auxiliary device 3 includes a fixing ring 31, which is fixedly connected to the regulator 14. An adjusting rod 32 is fixedly connected to one end of the circular arc surface of the fixing ring 31. A sleeve 35 is threadedly connected to one end of the adjusting rod 32 away from the fixing ring 31. An adjusting ring 34 is rotatably connected to the side of the sleeve 35 away from the fixing ring 31. A connecting rod 33 is fixedly connected to one end of the circular arc surface of the adjusting ring 34. The connecting rod 33 is fixedly connected to the valve body 13. The height of the regulator 14 can control the water flow between the water outlet 11 and the water inlet 12. When the water flow is large, the spring inside the regulator 14 will automatically drive the regulator 14 to move upward to increase the water flow in the safety valve. When it is necessary to adjust the height of the regulator 14 to control the water flow in the safety valve, the regulator 14 is pressed downward to connect the adjusting rod 32 with the sleeve 35, and then rotate in the adjusting ring 34. The movable sleeve 35 can drive the adjusting rod 32 to move in the direction of the adjusting ring 34 by rotating the sleeve 35, so that the height of the regulator 14 can be adjusted through the fixing ring 31, so as to achieve the purpose of controlling the size of the water flow. The arc surface of the sleeve 35 is provided with a plurality of anti-skid grooves 36, and the plurality of anti-skid grooves 36 are evenly distributed on the arc surface of the sleeve 35. When the sleeve 35 needs to be rotated, the anti-skid grooves 36 provided on the sleeve 35 can increase the friction between the worker's hand and the sleeve 35, so that the effect of rotating the sleeve 35 is better. The end of the adjusting rod 32 away from the fixing ring 31 is fixedly connected with a guide block 37, and the cross-section of the guide block 37 is arc-shaped. When the adjusting rod 32 is used to contact the sleeve 35, the guide block 37 installed on the adjusting rod 32 can reduce the angle required for the contact between the two, thereby increasing the speed when the adjusting rod 32 is connected to the sleeve 35.

[0034] The working principle of a PFA safety valve with stable control provided by the utility model is as follows: when it is necessary to connect the pipe body to the safety valve body 1, first put the pipe body inside the two clamps 202 and on the surface of the water outlet 11 or the water inlet 12, and push the clamp 202 at the lower end of the water outlet 11 or the water inlet 12 toward the clamp 202 at the upper end. The movement of the lower clamp 202 will move through the limit rod 205 in the connecting block 204 toward the upper clamp 202. At this time, the metal plate 208 on the lower clamp 202 will be adsorbed with the magnetic block 207 on the upper clamp 202, so that the two can be temporarily fixed together, and the threaded ring 203 installed on the side of the two clamps 202 is fixed by the screw 206, so that the two The clamp 202 is used to fix the pipe body, thereby completing the installation of the pipe body on the water outlet 11 or the water inlet 12, and the stability effect is good and the practicability is strong. After the clamp 202 is used to come into contact with the pipe body, the protrusion 210 installed on the clamp 202 can increase the friction between the pipe body and the clamp 202, thereby improving the stability of the connection between the pipe body and the clamp 202. When the clamp 202 is used to fix the pipe body connected to the safety valve body 1, the sealing ring 209 installed on the clamp 202 can improve the sealing effect between the pipe body and the clamp 202. The limit rod 205 made of titanium alloy has a relatively hard rod surface, which also makes it difficult for the limit rod 205 to deform when it slides in the connecting block 204 for a long time, and has a longer service life.

[0035] When it is necessary to adjust the height of the regulator 14 to control the water flow in the safety valve, the regulator 14 is pressed downward to connect the adjusting rod 32 with the sleeve 35, and then the sleeve 35 is rotated in the adjusting ring 34. The rotation of the sleeve 35 can drive the adjusting rod 32 to move in the direction of the adjusting ring 34, so that the height of the regulator 14 can be adjusted through the fixing ring 31, so as to achieve the purpose of controlling the size of the water flow. When it is necessary to rotate the sleeve 35, the anti-slip groove 36 provided on the sleeve 35 can increase the friction between the worker's hand and the sleeve 35, so that the effect of rotating the sleeve 35 is better. When the adjusting rod 32 is used to contact the sleeve 35, the guide block 37 installed on the adjusting rod 32 can reduce the angle required for the contact between the two, thereby increasing the speed when the adjusting rod 32 is connected to the sleeve 35.

[0036] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0037] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A PFA safety valve with stable control, characterized in that: include: A safety valve body (1), the safety valve body (1) comprising a valve body (13), one side of the valve body (13) being connected to a water outlet (11), the other side of the valve body (13) being connected to a water inlet (12), a regulator (14) being installed on the upper surface of the valve body (13), the arc surfaces of the water outlet (11) and the water inlet (12) being provided with a regulating device (2), the regulating device (2) comprising a fixing rod (201), the fixing rod (201) being fixedly connected to the valve body (13), the end of the fixing rod (201) being away from the valve body (13) being provided with two clamping openings (202), one of the clamping openings (202) being in contact with the fixing rod (201), and the other end of the fixing rod (201) being in contact with the fixing rod (201). The fixed rod (201) is fixedly connected, one side of the two clamps (202) is fixedly connected with a threaded ring (203), the inner wall of the two threaded rings (203) is threadedly penetrated with a same screw rod (206), the other side of the two clamps (202) is fixedly connected with a connecting block (204), the inner wall of the two connecting blocks (204) is slidably penetrated with a same limiting rod (205), the inner wall of one of the clamps (202) is fixedly connected with two magnetic blocks (207), the inner wall of the other clamp (202) is fixedly connected with a metal plate (208), and the two magnetic blocks (207) are adsorbed on the metal plate (208).

2. A PFA safety valve with stable control according to claim 1, characterized in that: A plurality of protrusions (210) are fixedly connected to one side of the two clamping openings (202) close to each other, and the plurality of protrusions (210) are evenly distributed on one side of the clamping openings (202).

3. A PFA safety valve with stable control according to claim 1, characterized in that: A sealing ring (209) is fixedly connected to one side of the two clamping openings (202) away from the valve body (13), and the cross section of the sealing ring (209) is arc-shaped.

4. A PFA safety valve with stable control according to claim 1, characterized in that: The limiting rod (205) is a titanium alloy rod.

5. A PFA safety valve with stable control according to claim 1, characterized in that: The arc surface of the regulator (14) is provided with an auxiliary device (3), and the auxiliary device (3) comprises a fixing ring (31), the fixing ring (31) is fixedly connected to the regulator (14), one end of the arc surface of the fixing ring (31) is fixedly connected to an adjusting rod (32), one end of the adjusting rod (32) away from the fixing ring (31) is threadedly connected to a sleeve (35), the side of the sleeve (35) away from the fixing ring (31) is rotatably connected to the adjusting ring (34), one end of the arc surface of the adjusting ring (34) is fixedly connected to a connecting rod (33), and the connecting rod (33) is fixedly connected to the valve body (13).

6. A PFA safety valve with stable control according to claim 5, characterized in that: The arc surface of the sleeve (35) is provided with a plurality of anti-skid grooves (36), and the plurality of anti-skid grooves (36) are evenly distributed on the arc surface of the sleeve (35).

7. A PFA safety valve with stable control according to claim 5, characterized in that: One end of the adjusting rod (32) away from the fixing ring (31) is fixedly connected to a guide block (37), and the cross section of the guide block (37) is arc-shaped.

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