Anti-freezing device for building water supply and drainage

Abstract

The utility model relates to the technical field of water supply and drainage anti-freezing, and discloses a building water supply and drainage anti-freezing device which comprises a valve body, a water inlet pipe is fixedly connected to the outer portion of the valve body, a water outlet pipe is fixedly connected to the bottom of the valve body, and a connecting pipe is fixedly connected to the side, away from the water inlet pipe, of the valve body. The top of the valve body is in threaded connection with a connecting flange, the top of the connecting flange is rotationally connected with a handle, an anti-freezing mechanism is designed outside the valve body and used for injecting anti-freezing liquid into a rotating shaft of the handle to prevent the handle from being frozen, and a lever mechanism is arranged at the bottom of the handle. The lever mechanism is used for enabling more labor to be saved when the handle is rotated to open and close the valve body. According to the anti-freezing liquid pump, the push rod is pushed through the push handle regularly to enable the piston to compress the reset spring, the reset spring rebounds to push the piston back, the anti-freezing liquid in the liquid storage box is pumped out by reciprocating for several times, normal work of the valve is ensured, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water supply and drainage antifreeze, especially to the antifreeze device of building water supply and drainage. BACKGROUND

[0002] The antifreeze device of building water supply and drainage is particularly important in cold regions, especially in extremely low temperature environments, water pipes and drainage systems may freeze due to low temperature, causing pipe rupture, water leakage and other problems. In order to avoid these problems, different antifreeze measures are usually used in building water supply and drainage systems.

[0003] The antifreeze device of building water supply and drainage effectively prevents pipes from freezing due to low temperature through reasonable design. For different building types, climate environment and use requirements, these antifreeze measures can be used comprehensively to ensure the safety and normal operation of the water supply and drainage system.

[0004] The antifreeze device of building water supply and drainage in the prior art does not set a valve handle antifreeze mechanism, only the water supply pipeline is treated for antifreeze, and once the valve handle freezes, the valve cannot be controlled, affecting the operation of the entire water supply system and reducing the practicability of the device. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides an antifreeze device for building water supply and drainage, aiming at improving the problem of low practicability of the device caused by the fact that the antifreeze device for building water supply and drainage in the prior art does not set a valve handle antifreeze mechanism, resulting in the valve being uncontrollable.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: an antifreeze device for building water supply and drainage, comprising a valve body, an inlet pipe fixedly connected to the outside of the valve body, an outlet pipe fixedly connected to the bottom of the valve body, a connecting pipe fixedly connected to the side of the valve body away from the inlet pipe, a connecting flange threadedly connected to the top of the valve body, a handle rotatably connected to the top of the connecting flange, a negative pressure mechanism provided at the end of the connecting pipe away from the valve body, the negative pressure mechanism being used to inject air into the inside of the valve body to extrude water and avoid pipe freezing, an antifreeze mechanism designed on the outside of the valve body, the antifreeze mechanism being used to inject antifreeze into the inside of the shaft of the handle to avoid the handle being frozen, a lever mechanism provided at the bottom of the handle, the lever mechanism being used to make it more labor-saving to open and close the valve body by rotating the handle.

[0007] Further description of the above technical scheme:

[0008] The negative pressure mechanism comprises an air inlet pipe, the air inlet pipe is threadedly connected at one end of the connecting pipe away from the valve body, a timing valve is threadedly connected at one end of the air inlet pipe away from the connecting pipe, a gas delivery pipe is threadedly connected at one end of the timing valve away from the air inlet pipe, and a gas nozzle is threadedly connected at one end of the gas delivery pipe away from the timing valve.

[0009] As a further description of the above technical solution:

[0010] The anti-freezing mechanism comprises a liquid storage box and a pump box, the liquid storage box is fixedly connected to the outside of the valve body, the pump box is fixedly connected to the outside of the valve body, a liquid delivery pipe is fixedly connected to the top of the liquid storage box, the top of the liquid delivery pipe is fixedly connected to the bottom of the pump box, two return springs are fixedly connected in the pump box, a piston is fixedly connected to one end of the return springs, a push rod is fixedly connected to the side of the piston away from the return springs, a liquid injection pipe is fixedly connected to the top of the pump box, and the top of the liquid injection pipe abuts against the bottom of the handle.

[0011] As a further description of the above technical solution:

[0012] The piston is slidingly connected in the pump box, and the push rod penetrates through the side of the pump box away from the return springs.

[0013] As a further description of the above technical solution:

[0014] The push rod is fixedly connected with a push handle at one end away from the pump box.

[0015] As a further description of the above technical solution:

[0016] The top of the liquid delivery pipe is fixedly connected with a one-way valve one, and the bottom of the liquid injection pipe is fixedly connected with a one-way valve two.

[0017] As a further description of the above technical solution:

[0018] The lever mechanism comprises two U-shaped frames, a handle is rotatably connected in each of the U-shaped frames, two limiting blocks are slidingly connected in the handle, a compression spring is fixedly connected between the two limiting blocks, a clamping rod is fixedly connected to the opposite side of each of the limiting blocks, and a clamping hole is formed in the outer portion of each of the handles.

[0019] As a further description of the above technical solution:

[0020] The clamping rod is clamped in the clamping hole.

[0021] The utility model has the advantages of:

[0022] 1. In this utility model, antifreeze is injected into the reservoir. Periodically, the piston is compressed by pushing the push rod with the push handle. The return spring rebounds and pushes the piston back. After repeating this process several times, the antifreeze in the reservoir is pumped out and delivered to the injection pipe through the liquid delivery pipe and injected into the handle shaft. This achieves the effect of injecting antifreeze into the handle shaft through the antifreeze mechanism to prevent it from freezing, effectively protecting the handle, ensuring the normal operation of the valve, and improving the practicality of the device.

[0023] 2. In this utility model, when opening and closing the valve body, the locking rod is pushed into the handle to push the limiting block to compress the compression spring. The handle is rotated upward until the locking rod moves to the locking hole position. Under the influence of the spring's rebound force, the limiting block pushes the locking rod outward to engage and fix it with the locking hole. At this time, the two handles form a long lever, making it easier to turn the handle. The lever mechanism makes the valve body handle easier to use, reduces the labor intensity of manually opening and closing the valve body, and improves the practicality of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of the antifreeze device for building water supply and drainage proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the negative pressure mechanism of the antifreeze device for building water supply and drainage proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the antifreeze mechanism of the antifreeze device for building water supply and drainage proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the lever mechanism of the antifreeze device for building water supply and drainage proposed in this utility model.

[0028] Legend:

[0029] 1. Valve body; 2. Inlet pipe; 3. Outlet pipe; 4. Connecting pipe; 5. Air inlet pipe; 6. Timer valve; 7. Air delivery pipe; 8. Air nozzle; 9. Connecting flange; 10. Handle; 11. Liquid storage box; 12. Liquid delivery pipe; 13. Pump box; 14. Return spring; 15. Piston; 16. Push rod; 17. Push handle; 18. Injection pipe; 19. Check valve one; 20. Check valve two; 21. U-shaped bracket; 22. Handle; 23. Limiting block; 24. Compression spring; 25. Locking rod; 26. Locking hole. Detailed Implementation

[0030] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0031] With reference to Figure 1 - Figure 3The utility model provides an embodiment: building water supply and drainage's anti -freezing device, the outside fixed connection has water inlet pipe 2 to valve body 1, the bottom fixed connection has water outlet pipe 3 to valve body 1, the side fixed connection has connecting pipe 4 to valve body 1 away from water inlet pipe 2, the top screw thread connection has connecting flange 9 to valve body 1, the top rotationally connects to handle 10 of connecting flange 9, handle 10 plays the role of opening and closing valve body 1, one end of connecting pipe 4 away from valve body 1 is provided with negative pressure mechanism, and negative pressure mechanism is used for the inside injection of valve body 1 to air extrusion water and avoids pipeline freezing in time, and the outside of valve body 1 is designed with anti -freezing mechanism, and anti -freezing mechanism is used for the inside injection of handle 10 pivot to antifreezing liquid and avoids handle 10 frozen, the bottom of handle 10 is provided with lever mechanism, and lever mechanism is used for when rotating handle 10 opening and closing valve body 1 more laborsaving. Negative pressure mechanism includes air inlet pipe 5, and air inlet pipe 5 plays the role of input air, and air inlet pipe 5 screw thread connection is in the one end of connecting pipe 4 away from valve body 1, and the one end screw thread connection has timing valve 6 to air inlet pipe 5 away from connecting pipe 4, and timing valve 6 plays the role of timing input air, and the one end screw thread connection has gas pipe 7 to timing valve 6 away from air inlet pipe 5, and gas pipe 7 plays the role of gas transmission, and the one end screw thread connection has gas nozzle 8 to gas pipe 7 away from timing valve 6, and gas nozzle 8 plays the role of connecting external air pump gas transmission. Anti -freezing mechanism includes liquid storage box 11 and pump box 13, and liquid storage box 11 plays the role of storing antifreezing liquid, and pump box 13 plays the role of pumping antifreezing liquid, and liquid storage box 11 fixed connection is in the outside of valve body 1, and pump box 13 fixed connection is in the outside of valve body 1, and the top fixed connection has liquid delivery pipe 12 to liquid storage box 11, and liquid delivery pipe 12 plays the role of conveying antifreezing liquid, and the top fixed connection is in the bottom of pump box 13 to liquid delivery pipe 12, and the inside fixed connection has two reset springs 14 to pump box 13, and reset spring 14 plays the role of providing elastic force and pushing piston 15, and one end fixed connection has piston 15 to reset spring 14, and piston 15 plays the role of pumping liquid, and the one side fixed connection has push rod 16 to piston 15 away from reset spring 14, and push rod 16 plays the role of pushing piston 15, and the top fixed connection has injection pipe 18 to pump box 13, and injection pipe 18 plays the role of injecting antifreezing liquid to the pivot of handle 10, and the top of injection pipe 18 and the bottom of handle 10 are in contact, and piston 15 is slidably connected in the inside of pump box 13, and push rod 16 penetrates the one side of pump box 13 away from reset spring 14, and the one end fixed connection has push handle 17 to push rod 16 away from pump box 13, and the top fixed connection has one-way valve 1 9 to liquid delivery pipe 12, and one-way valve 1 9 plays the role of avoiding antifreezing liquid backflow, and the bottom fixed connection has one-way valve 2 0 to injection pipe 18, and one-way valve 2 0 plays the role of avoiding antifreezing liquid backflow.

[0032] Refer to Figure 1 , Figure 4The lever mechanism comprises two U-shaped frames 21, which are used to connect the handles 22, the handles 22 are rotatably connected in the interiors of the two U-shaped frames 21, the handles 22 are used to extend the handle 10 to form a long lever, two limiting blocks 23 are slidably connected in the interiors of the handles 22, the limiting blocks 23 are used to prevent the extrusion spring 24 from falling off, the extrusion spring 24 is fixedly connected between the two limiting blocks 23, the extrusion spring 24 is used to provide elastic force to push the clamping rod 25, the clamping rod 25 is fixedly connected to the opposite sides of the two limiting blocks 23, the clamping rod 25 is used to be clamped and fixed, and clamping holes 26 are formed in the exteriors of the two handles 22, the clamping holes 26 are used to be clamped and fixed. The clamping rod 25 is clamped with the clamping hole 26.

[0033] Working principle: when the outdoor temperature is normal, the valve body 1 normally supplies water through the water inlet pipe 2 and the water outlet pipe 3; when the outdoor temperature decreases to minus zero, the timing valve 6 is automatically opened, the external air pump injects air into the air inlet pipe 5 through the air outlet pipe 7 and the air outlet 8, so that the water in the valve body 1 is extruded through the water inlet pipe 2, and negative pressure is formed in the valve body 1 to avoid freezing.

[0034] The anti-freezing liquid is injected into the liquid storage box 11, the push rod 16 is pushed by the push handle 17 at regular time, so that the piston 15 compresses the reset spring 14, the reset spring 14 rebounds to push the piston 15 back, and the anti-freezing liquid in the liquid storage box 11 is pumped out through the liquid delivery pipe 12 and injected into the rotating shaft of the handle 10 through the liquid injection pipe 18.

[0035] When the opening and closing valve body 1 is opened and closed, the clamping rod 25 is pushed to push the limiting block 23 into the handle 22 to compress the extrusion spring 24, the handle 22 is rotated upwards until the clamping rod 25 moves to the position of the clamping hole 26, the limiting block 23 is pushed outwards to be clamped and fixed with the clamping hole 26 under the influence of the rebound force of the extrusion spring 24, and the two handles 22 form a long lever, so that the handle 10 is more labor-saving to rotate.

[0036] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A frost protection device for building water supply and drainage, comprising a valve body (1), characterized in that: The outside of the valve body (1) is fixedly connected with a water inlet pipe (2), the bottom of the valve body (1) is fixedly connected with a water outlet pipe (3), one side of the valve body (1) away from the water inlet pipe (2) is fixedly connected with a connecting pipe (4), the top of the valve body (1) is threadedly connected with a connecting flange (9), the top of the connecting flange (9) is rotatably connected with a handle (10), one end of the connecting pipe (4) away from the valve body (1) is provided with a negative pressure mechanism, the negative pressure mechanism is used for injecting air into the inside of the valve body (1) to squeeze out water and avoid pipeline freezing, the outside of the valve body (1) is designed with an anti-freezing mechanism, the anti-freezing mechanism is used for injecting anti-freezing liquid into the inside of the pivot of the handle (10) to avoid the handle (10) being frozen, the bottom of the handle (10) is provided with a lever mechanism, the lever mechanism is used for making the handle (10) more labor-saving when being rotated to open and close the valve body (1).

2. The anti-freezing device for building water supply and drainage according to claim 1, characterized in that: The negative pressure mechanism comprises an air inlet pipe (5), the air inlet pipe (5) is threadedly connected at one end of the connecting pipe (4) away from the valve body (1), one end of the air inlet pipe (5) away from the connecting pipe (4) is threadedly connected with a timing valve (6), one end of the timing valve (6) away from the air inlet pipe (5) is threadedly connected with a gas conveying pipe (7), one end of the gas conveying pipe (7) away from the timing valve (6) is threadedly connected with a gas nozzle (8).

3. The anti-freezing device for building water supply and drainage according to claim 1, characterized in that: The anti-freezing mechanism comprises a liquid storage box (11) and a pump box (13), the liquid storage box (11) is fixedly connected to the outside of the valve body (1), the pump box (13) is fixedly connected to the outside of the valve body (1), the top of the liquid storage box (11) is fixedly connected with a liquid feeding pipe (12), the top of the liquid feeding pipe (12) is fixedly connected to the bottom of the pump box (13), the inside of the pump box (13) is fixedly connected with two return springs (14), one end of the return spring (14) is fixedly connected with a piston (15), one side of the piston (15) away from the return spring (14) is fixedly connected with a push rod (16), the top of the pump box (13) is fixedly connected with a liquid injection pipe (18), the top of the liquid injection pipe (18) abuts against the bottom of the handle (10).

4. The anti-freezing device for building water supply and drainage according to claim 3, characterized in that: The piston (15) is slidably connected in the inside of the pump box (13), the push rod (16) penetrates through one side of the pump box (13) away from the return spring (14).

5. The anti-freezing device for building water supply and drainage according to claim 3, characterized in that: One end of the push rod (16) away from the pump box (13) is fixedly connected with a push handle (17).

6. The anti-freezing device for building water supply and drainage according to claim 3, characterized in that: The top of the liquid feeding pipe (12) is fixedly connected with a one-way valve one (19), the bottom of the liquid injection pipe (18) is fixedly connected with a one-way valve two (20).

7. The anti-freezing device for building water supply and drainage according to claim 1, characterized in that: The lever mechanism comprises two U-shaped frames (21), the inner part of each of the two U-shaped frames (21) is rotationally connected with a handle (22), the inner part of the handle (22) is slidably connected with two limiting blocks (23), the two limiting blocks (23) are fixedly connected with an extrusion spring (24) between them, the opposite sides of the two limiting blocks (23) are fixedly connected with clamping rods (25), and the outer part of each of the two handles (22) is provided with a clamping hole (26).

8. The anti-freezing device for building water supply and drainage according to claim 7, characterized in that: The clamping rod (25) is clamped with the clamping hole (26).

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