Automatic check stop valve

Abstract

The utility model discloses an automatic check stop valve, which relates to the technical field of valves, and comprises a pipeline, a water inlet pipe arranged in the pipeline, a water outlet pipe arranged in the pipeline, a first connecting plate arranged in the pipeline, a first mounting mechanism arranged above the first connecting plate, and a telescopic rod fixedly connected to the bottom surface of the first connecting plate, the telescopic end of the telescopic rod is fixedly connected with a second connecting plate, two symmetrical second mounting mechanisms are arranged below the telescopic rod, two symmetrical springs are arranged below the telescopic rod, and the bottom face of the second connecting plate is fixedly connected with a plugging block. By arranging the second mounting mechanism and the spring, the spring can be efficiently disassembled through the elaborately-designed second mounting mechanism in practical application, the innovative measure greatly facilitates rapid replacement of the damaged spring by workers, the problem of pain in the aspects of maintenance and replacement of an existing device is effectively solved, and the service life of the device is prolonged. And the working efficiency is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to an automatic non-return stop valve. Background Art

[0002] The stop check valve is a multi-purpose valve that has the functions of both a stop valve and a check valve. Its structure is similar to that of a stop valve, but the valve stem and the valve disc are not fixedly connected. On pipelines where both stop valves (or gate valves) and check valves need to be installed (such as the outlet of a water pump), or in places where the installation position is restricted (such as ships), the use of stop check valves can save installation costs and space. Traditional stop check valves usually use two methods for checking. The first is through the coordination of the valve stem and the valve disc, and the second is through the coordination of the valve core and the spring. The principle of the second method is that the valve core is subjected to the reaction force of the spring, so that the valve core blocks the check circuit. When the water pressure is too high and reaches the point where the valve core can be lifted, the water can flow through. Similarly, when the water pressure is too low, the valve core blocks the check circuit, achieving a cut-off effect.

[0003] According to the patent publication number CN221003939U, an automatic non-return stop valve is disclosed. The automatic non-return stop valve comprises a stop valve, one side of the stop valve is provided with a water inlet, and the other side of the stop valve is provided with a water outlet.

[0004] The above scheme can effectively prevent the spring from being affected by water pressure shock and causing the valve core to deviate, and can also effectively realize the automatic check valve. At the same time, the structure is simple and the coordination is smooth, which effectively improves the use effect of the automatic check stop valve. However, the above scheme still has certain limitations: in the operation of the automatic check stop valve, the spring plays a vital role. It needs to closely cooperate with the opening and closing actions of the valve to perform corresponding expansion and contraction adjustments. This process can easily lead to a reduction in the service life of the spring. The position of the spring in the above device determines that the disassembly of the spring is more difficult, and it is not convenient for the staff to replace the spring. To this end, we provide an automatic check stop valve to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and provide an automatic non-return stop valve.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic check valve, comprising a pipeline, a water inlet pipe is provided inside the pipeline, a water outlet pipe is provided inside the pipeline, a first connecting plate is provided inside the pipeline, a first mounting mechanism is provided above the first connecting plate, a telescopic rod is fixedly connected to the bottom surface of the first connecting plate, a telescopic end of the telescopic rod is fixedly connected to the second connecting plate, two symmetrical second mounting mechanisms are provided below the telescopic rod, two symmetrical springs are provided below the telescopic rod, and a blocking block is fixedly connected to the bottom surface of the second connecting plate.

[0007] Furthermore, the first mounting mechanism comprises a mounting groove, the mounting groove is provided on the upper surface of the pipeline, a sealing plate is inserted into the interior of the mounting groove, and the internal thread of the sealing plate is connected to two symmetrical fixing bolts.

[0008] Furthermore, the outer surfaces of the two fixing bolts are connected to the internal threads of the pipeline, the interior of the sealing plate is fixedly connected to a valve cover, and the upper surface of the valve cover is provided with a groove handle.

[0009] Furthermore, the outer surface of the valve cover is inserted into the interior of the pipeline, and the bottom surface of the valve cover is fixedly connected to the upper surface of the first connecting plate.

[0010] Furthermore, the second mounting mechanism includes two symmetrical mounting blocks, wherein the upper surface of one of the mounting blocks is fixedly connected to the bottom surface of the first connecting plate, and the bottom surface of the other mounting block is fixedly connected to the upper surface of the second connecting plate, and slots are provided on the outer surfaces of the two mounting blocks, and plug-in boards are inserted into the interiors of the two slots.

[0011] Furthermore, the outer surfaces of the two plug plates are fixedly connected with connecting blocks, the side surfaces of the two connecting blocks close to each other are fixedly connected with mounting plates, and both ends of the spring are fixedly connected with the outer surfaces of the mounting plates.

[0012] Furthermore, the interiors of the two mounting blocks are both threadedly connected with fixing screws, the outer surfaces of the two fixing screws are both fixedly connected with handles, and the outer surfaces of the two fixing screws are both threadedly connected to the interior of the plug plate.

[0013] Compared with the prior art, the automatic check valve has the following beneficial effects:

[0014] 1. The utility model provides a second mounting mechanism and a spring. In practical applications, the well-designed second mounting mechanism can realize efficient disassembly of the spring. This innovative measure greatly facilitates the staff to quickly replace the damaged spring, effectively solves the pain points of the existing device in maintenance and replacement, and significantly improves work efficiency.

[0015] 2. The utility model is provided with an installation groove, a sealing plate, a valve cover, a fixing bolt, a groove handle, a pipeline, a water inlet pipe, a water outlet pipe and a blocking block. When in use, the various components of the check valve are placed in the pipeline in sequence by holding the groove handle until the blocking block is completely inserted into the water flow openings opened on the surfaces of the water inlet pipe and the water outlet pipe. During the placement process, the valve cover will be inserted into the pipeline, and the sealing plate will be inserted into the installation groove. Subsequently, the fixing bolts will be screwed into the sealing plate and the inside of the pipeline to achieve the installation of the check valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of the first installation mechanism of the utility model;

[0019] Figure 4 It is a partial structural schematic diagram of the first installation mechanism of the utility model;

[0020] Figure 5 This is a schematic diagram of the second installation mechanism of the utility model;

[0021] Figure 6 It is a partial structural schematic diagram of the second mounting mechanism of the utility model.

[0022] In the figure: 1. pipeline; 2. water inlet pipe; 3. water outlet pipe; 4. first connecting plate; 5. first mounting mechanism; 501. mounting groove; 502. sealing plate; 503. valve cover; 504. fixing bolt; 505. groove handle; 6. second mounting mechanism; 601. mounting block; 602. slot; 603. plug plate; 604. connecting block; 605. mounting plate; 606. fixing screw; 607. handle; 7. telescopic rod; 8. spring; 9. second connecting plate; 10. blocking block. DETAILED DESCRIPTION

[0023] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0024] The present embodiment provides an automated check valve. By providing a second mounting mechanism 6 and a spring 8, in actual applications, the spring 8 can be efficiently disassembled through the carefully designed second mounting mechanism 6. This innovative measure greatly facilitates the staff to quickly replace the damaged spring 8, effectively solves the pain points of the existing device in terms of maintenance and replacement, and significantly improves work efficiency.

[0025] Embodiment 1

[0026] like Figure 1-6 As shown, the utility model provides an automatic non-return stop valve, comprising a pipeline 1, a water inlet pipe 2 is arranged inside the pipeline 1, and a water outlet pipe 3 is arranged inside the pipeline 1.

[0027] A water outlet is provided at the intersection of the water inlet pipe 2 and the water outlet pipe 3 .

[0028] A first connecting plate 4 is provided inside the pipeline 1, a first mounting mechanism 5 is provided above the first connecting plate 4, a telescopic rod 7 is fixedly connected to the bottom surface of the first connecting plate 4, a second connecting plate 9 is fixedly connected to the telescopic end of the telescopic rod 7, two symmetrical second mounting mechanisms 6 are provided below the telescopic rod 7, two symmetrical springs 8 are provided below the telescopic rod 7, and a blocking block 10 is fixedly connected to the bottom surface of the second connecting plate 9.

[0029] A layer of rubber material is provided on the bottom surface of the second connecting plate 9, which can seal the gap between the blocking block 10 and the water outlet to prevent water leakage. When the water pressure inside the pipeline 1 is too high, the blocking block 10 is lifted up. This process will cause the telescopic end of the telescopic rod 7 to shrink inward, compress the spring 8, and make the spring 8 produce elastic force, so that the water flow can be transported normally. When the water pressure is relatively low, the blocking block 10 will be subjected to the reaction force of the spring 8 to block the water outlet, which can be checked, thereby realizing automatic check processing.

[0030] Embodiment 2

[0031] like Figure 1-6 As shown, this embodiment further illustrates Example 1, the first mounting mechanism 5 includes a mounting groove 501, the mounting groove 501 is opened on the upper surface of the pipe 1, a sealing plate 502 is inserted into the interior of the mounting groove 501, and the internal thread of the sealing plate 502 is connected to two symmetrical fixing bolts 504.

[0032] The sealing plate 502 can seal the gap between the valve cover 503 and the pipeline 1 to avoid water leakage.

[0033] The outer surfaces of the two fixing bolts 504 are connected to the inner threads of the pipeline 1 . The inside of the sealing plate 502 is fixedly connected with a valve cover 503 . The upper surface of the valve cover 503 is provided with a groove handle 505 .

[0034] A layer of non-slip and non-irritating hard rubber material is disposed inside the groove handle 505 .

[0035] The outer surface of the valve cover 503 is inserted into the interior of the pipeline 1 , and the bottom surface of the valve cover 503 is fixedly connected to the upper surface of the first connecting plate 4 .

[0036] When in use, the various components of the check valve are placed into the pipe 1 in sequence by holding the groove handle 505 until the blocking block 10 is completely inserted into the water flow openings opened on the surfaces of the water inlet pipe 2 and the water outlet pipe 3. During the placement process, the valve cover 503 will be inserted into the pipe 1, and the sealing plate 502 will be inserted into the installation groove 501. Subsequently, the fixing bolts 504 are screwed into the sealing plate 502 and the inside of the pipe 1 to complete the installation of the check valve.

[0037] The second mounting mechanism 6 includes two symmetrical mounting blocks 601, wherein the upper surface of one mounting block 601 is fixedly connected to the bottom surface of the first connecting plate 4, and the bottom surface of the other mounting block 601 is fixedly connected to the upper surface of the second connecting plate 9. The outer surfaces of the two mounting blocks 601 are provided with slots 602, and the insides of the two slots 602 are plugged with plug-in boards 603.

[0038] The outer surfaces of the two plug plates 603 are fixedly connected with connecting blocks 604 , the side surfaces of the two connecting blocks 604 close to each other are fixedly connected with mounting plates 605 , and both ends of the spring 8 are fixedly connected with the outer surfaces of the mounting plates 605 .

[0039] When replacing, the plug plate 603, the connecting block 604 and the mounting plate 605 will be replaced together with the damaged spring 8, and the staff can remove the damaged spring 8 fixed on the mounting plate 605 at a later stage, weld a new spring 8, and reuse the removed plug plate 603, the connecting block 604 and the mounting plate 605.

[0040] The interiors of the two mounting blocks 601 are both threadedly connected with fixing screws 606 , the outer surfaces of the two fixing screws 606 are both fixedly connected with handles 607 , and the outer surfaces of the two fixing screws 606 are both threadedly connected to the interior of the plug plate 603 .

[0041] The components in the mechanism as well as the telescopic rod 7 and the spring 8 are all made of stainless steel.

[0042] When in use, turn the handle 607 to drive the fixed screw 606 to rotate until the fixed screw 606 is completely separated from the mounting block 601 and the plug plate 603, so that the limit on the plug plate 603 can be released. Then move the connecting block 604 and pull the plug plate 603 out of the slot 602 to achieve the disassembly of the spring 8. This innovative measure greatly facilitates the staff to quickly replace the damaged spring 8, effectively solves the pain points of the existing device in maintenance and replacement, and significantly improves work efficiency.

[0043] Working principle: When in use, turn the handle 607 to drive the fixed screw 606 to rotate until the fixed screw 606 is completely separated from the mounting block 601 and the plug plate 603, and then the limit of the plug plate 603 can be released. Then move the connecting block 604 to pull the plug plate 603 out of the slot 602, and then the spring 8 can be disassembled. This innovative measure greatly facilitates the staff to quickly replace the damaged spring 8, effectively solves the pain points of the existing device in maintenance and replacement, and significantly improves work efficiency. When in use, the various components of the check valve are placed in the pipeline 1 in sequence by holding the groove handle 505 until the blocking block 10 is completely inserted into the water flow openings opened on the surface of the water inlet pipe 2 and the water outlet pipe 3. During the placement process, the valve cover 503 will be inserted into the pipeline 1, and the sealing plate 502 will be inserted into the mounting groove 501. Then, the fixing bolt 504 is screwed into the sealing plate 502 and the inside of the pipeline 1 to achieve the installation of the check valve.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic non-return stop valve, comprising a pipeline (1), characterized in that: A water inlet pipe (2) is provided inside the pipeline (1), a water outlet pipe (3) is provided inside the pipeline (1), a first connecting plate (4) is provided inside the pipeline (1), a first mounting mechanism (5) is provided above the first connecting plate (4), a telescopic rod (7) is fixedly connected to the bottom surface of the first connecting plate (4), a telescopic end of the telescopic rod (7) is fixedly connected to a second connecting plate (9), two symmetrical second mounting mechanisms (6) are provided below the telescopic rod (7), two symmetrical springs (8) are provided below the telescopic rod (7), and a blocking block (10) is fixedly connected to the bottom surface of the second connecting plate (9).

2. The automatic check valve according to claim 1, characterized in that: The first mounting mechanism (5) comprises a mounting groove (501), the mounting groove (501) being opened on the upper surface of the pipeline (1), a sealing plate (502) being inserted into the interior of the mounting groove (501), and two symmetrical fixing bolts (504) being connected to the internal threads of the sealing plate (502).

3. The automatic check valve according to claim 2, characterized in that: The outer surfaces of the two fixing bolts (504) are connected to the internal threads of the pipeline (1), the interior of the sealing plate (502) is fixedly connected to a valve cover (503), and the upper surface of the valve cover (503) is provided with a groove handle (505).

4. The automatic check valve according to claim 3, characterized in that: The outer surface of the valve cover (503) is inserted into the interior of the pipeline (1), and the bottom surface of the valve cover (503) is fixedly connected to the upper surface of the first connecting plate (4).

5. The automatic check valve according to claim 1, characterized in that: The second mounting mechanism (6) comprises two symmetrical mounting blocks (601), wherein the upper surface of one of the mounting blocks (601) is fixedly connected to the bottom surface of the first connecting plate (4), and the bottom surface of the other mounting block (601) is fixedly connected to the upper surface of the second connecting plate (9), and slots (602) are provided on the outer surfaces of the two mounting blocks (601), and plug-in boards (603) are inserted into the interiors of the two slots (602).

6. The automatic check valve according to claim 5, characterized in that: The outer surfaces of the two plug plates (603) are fixedly connected to connecting blocks (604), the sides of the two connecting blocks (604) close to each other are fixedly connected to mounting plates (605), and both ends of the spring (8) are fixedly connected to the outer surfaces of the mounting plates (605).

7. An automatic check valve according to claim 6, characterized in that: The interiors of the two mounting blocks (601) are both threadedly connected with fixing screws (606), the outer surfaces of the two fixing screws (606) are both fixedly connected with handles (607), and the outer surfaces of the two fixing screws (606) are both threadedly connected with the interior of the plug plate (603).

Images