Double-gate pressurized locking leakproof umbrella valve

Abstract

The utility model discloses a double-gate pressurized locking leakproof umbrella valve, which relates to the field of umbrella valves and comprises an umbrella valve casing and a connecting pipe, umbrella valve pipes are fixedly mounted on two sides of the umbrella valve casing, the outer ends of the umbrella valve pipes are fixedly connected with first flanges, a bevel gear is arranged on the front surface of the top of the umbrella valve casing, and a second flange is arranged on the top of the umbrella valve casing. A valve rod penetrates through the interior of the umbrella valve shell, and the outer wall of the umbrella valve pipe is sleeved with a second fixing sleeve. A valve seat is fixedly installed at the bottom of the valve rod, double-gate-plate bodies are fixedly installed on the two sides of the valve seat, and the double-gate-plate bodies are located at the inner end of the umbrella valve pipe. According to the umbrella valve, the sealing gasket and the positioning bolt are arranged, the umbrella valve pipe connected with the umbrella valve shell and an external connecting pipe can be installed in a sealed mode, the clamping rod and the spring are arranged, the installation fixity of the umbrella valve pipe and the external connecting pipe can be improved, the leakage condition of the umbrella valve in the follow-up process is prevented, and the umbrella valve shell and the double-gate-plate body are arranged, so that the service life of the umbrella valve is prolonged. And the leakage prevention condition can be further increased.

Description

Technical Field

[0001] The utility model relates to the technical field of umbrella valves, and particularly relates to an umbrella valve with double gate plates for pressurization and locking to prevent leakage. Background Technique

[0002] An umbrella valve is a special valve, and its functions are mainly reflected in flow control and check functions. The umbrella valve controls the flow rate of the medium through pressure changes, and is particularly suitable for scenarios where precise adjustment of the medium flow rate is required. It can be divided into two types: manual umbrella valves and automatic control umbrella valves.

[0003] When the existing umbrella valve is in use, it is generally installed at the inlet and outlet pipes of various equipment. Usually, a threaded connection method is adopted. One end or both ends of the umbrella valve will have threads, and the valve is connected to the threaded interface on the pipe by rotating the valve. Due to the gaps in the threaded connection, if the sealing is not tight or affected by external pressure changes, the umbrella valve may have a leakage risk.

[0004] In order to overcome the defect of anti-leakage of the globe valve, the prior art (Chinese patent with application number: 202223320817.6, and application date of December 8, 2022) discloses an anti-leakage globe valve, which can make the globe valve have a good sealing effect, facilitate improving the sealing between the valve stem and the valve body, and at the same time improve the sealing between the globe valve and the pipe connection, effectively improving the anti-leakage effect of the globe valve during use, thereby making the practicality of the globe valve be improved to a certain extent.

[0005] Although the prior art can solve the anti-leakage of the globe valve, the globe valve is installed on the valve body and the pipe through fixing bolts. During long-term use, the positioning bolts may be affected by alternating loads, resulting in fatigue failure. Fatigue failure will gradually reduce the strength and stiffness of the fixing bolts, and may ultimately lead to connection failure. In the application of the globe valve, if the pipeline system needs to be frequently opened and closed or bear periodically changing pressures, the fatigue failure problem of the fixing bolt connection may be more prominent, resulting in gaps and leakage.

[0006] Therefore, we propose an umbrella valve with double gate plates for pressurization and locking to prevent leakage, which can well solve the above problems. Content of the Utility Model

[0007] The purpose of the present utility model is to provide a double - gate pressurized locking anti - leakage umbrella valve, so as to solve the problem proposed in the above - mentioned background technology. When a double - gate pressurized locking anti - leakage umbrella valve on the current market is in use, since the globe valve is installed on the valve body and the pipeline through fixing bolts, during the long - term use process, the fixing bolts may be affected by alternating loads, resulting in fatigue failure. Fatigue failure will gradually reduce the strength and stiffness of the fixing bolts, and ultimately may lead to connection failure. In the application of the globe valve, if the pipeline system needs to be frequently opened and closed or withstand periodic pressure changes, the problem of fatigue failure of the fixing bolt connection may be more prominent, thus resulting in gaps and causing leakage problems.

[0008] To achieve the above - mentioned purpose, the present utility model provides the following technical solutions: A double - gate pressurized locking anti - leakage umbrella valve, including an umbrella valve housing and a connecting pipe. On both sides of the umbrella valve housing, umbrella valve pipes are fixedly installed. The outer ends of the umbrella valve pipes are fixedly connected with first flanges. On the front of the top of the umbrella valve housing, a bevel gear is arranged. A valve rod penetrates through the inside of the umbrella valve housing. A second fixing sleeve is sleeved on the outer wall of the umbrella valve pipe;

[0009] It further includes: A valve seat is fixedly installed at the bottom of the valve rod. On both sides of the valve seat, double - gate bodies are fixedly installed, and the double - gate bodies are located at the inner ends of the umbrella valve pipes;

[0010] A second flange is fixedly installed on the right side of the connecting pipe. A sealing gasket is fixedly connected to the right side of the second flange. A number of positioning bolts penetrate through the inside of the second flange, and the ends of the positioning bolts are inserted into the first flange. A first fixing sleeve is sleeved on the outer wall of the connecting pipe.

[0011] As a preferred technical solution of the present application, clamping plates are fixedly installed on the front and rear sides of the first fixing sleeve, and the ends of the clamping plates are inserted into the second fixing sleeve. Card slots are opened inside the clamping plates.

[0012] As a preferred technical solution of the present application, fixing cylinders penetrate through the inside of the front and rear sides of the second fixing sleeve. Expansion rods penetrate through the inside of the fixing cylinders. Springs are sleeved on the outer walls of the expansion rods. A moving plate is fixedly installed behind the expansion rod. A clamping rod is fixedly connected to the back of the moving plate, and the end of the clamping rod is inserted into the card slot.

[0013] As a preferred technical solution of the present application, the connection between the umbrella valve pipe and the connecting pipe is a detachable connection. The central axes of the umbrella valve pipe and the double - gate body coincide. The umbrella valve pipe connected to the umbrella valve housing is connected to the external connecting pipe by the staff.

[0014] As a preferred technical solution of the present application, the clamping plate and the second fixing sleeve are matched with each other. The clamping plate is set in a semi - circular arc structure. The clamping plate connected to the first fixing sleeve by the connecting pipe is inserted into the inner wall of the second fixing sleeve.

[0015] As a preferred technical solution of the present application, both ends of the spring are fixedly connected between the telescopic rod and the inner wall of the fixed cylinder, and the telescopic rod is movably connected to the fixed cylinder. By loosening the pulled telescopic rods, the resilience of the spring drives the latch connected to the moving plate to insert into the card slot.

[0016] As a preferred technical solution of the present application, the latch is detachably connected to the card slot, and the card slot and the card plate are integrally provided. The resilience of the spring drives the latch connected to the moving plate to insert into the card slot, so that the card plate connected to the first fixing sleeve is fixed in the second fixing sleeve.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] For the double-gate pressurized locking leak-proof umbrella valve, by providing a gasket and positioning bolts, the umbrella valve pipe connected to the umbrella valve housing can be hermetically installed with the external connecting pipe, and by providing a latch and a spring, the fixing of the connection between the umbrella valve pipe and the external connecting pipe can be increased, preventing leakage of the umbrella valve in subsequent processes. And by providing an umbrella valve housing and a double-gate body, the leak-proof situation can be further increased. The specific content is as follows:

[0019] 1. A gasket and positioning bolts are provided. The umbrella valve pipe is connected to the external connecting pipe, so that the first flange connected to the umbrella valve pipe fits on the gasket connected to the connecting pipe through the second flange. Then, manually pass the positioning bolts through the second flange and the first flange to hermetically install the umbrella valve pipe connected to the umbrella valve housing with the external connecting pipe;

[0020] Furthermore, a latch and a spring are provided. Through the mutual cooperation of the telescopic rod, the moving plate, the latch, the fixed cylinder and the spring, the card plate connected to the first fixing sleeve is fixed in the second fixing sleeve, increasing the fixing of the connection between the umbrella valve pipe and the external connecting pipe and preventing leakage of the umbrella valve in subsequent processes;

[0021] 2. A valve stem is provided. By driving the double-gate body connected to the valve seat to open or close in the umbrella valve housing through the valve stem, the flow of fluid in the umbrella valve pipe can be controlled;

[0022] Furthermore, an umbrella valve housing and a double-gate body are provided. Since the bottoms of the umbrella valve housing and the double-gate body are both provided with an umbrella-shaped structure, it is convenient for the double-gate body to form good sealing or separation with the umbrella valve housing during the opening and closing processes, further increasing the leak-proof situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the main structure of the present utility model;

[0024] Figure 2Schematic diagram of the partial structure of the umbrella valve housing of the present utility model;

[0025] Figure 3 Schematic diagram of the partial sectional structure of the umbrella valve housing of the present utility model;

[0026] Figure 4 Schematic diagram of the partial structure of the umbrella valve pipe and the connecting pipe of the present utility model;

[0027] Figure 5 Schematic diagram of the partial structure of the valve stem, valve seat and double gate plate body of the present utility model;

[0028] Figure 6 Schematic diagram of the partial structure of the first fixing sleeve and the second fixing sleeve of the present utility model;

[0029] Figure 7 For the present utility model Figure 6 Enlarged structure diagram at position A in

[0030] In the figure: 1. Umbrella valve housing; 2. Umbrella valve pipe; 3. First flange; 4. Bevel gear; 5. Valve stem; 6. Valve seat; 7. Double gate plate body; 8. Connecting pipe; 9. Second flange; 10. Positioning bolt; 11. Sealing gasket; 12. First fixing sleeve; 13. Clamping plate; 14. Second fixing sleeve; 15. Fixed cylinder; 16. Telescopic rod; 17. Spring; 18. Moving plate; 19. Clamping rod. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Please refer to Figures 1-7 , the present utility model provides the following technical solutions:

[0033] Embodiment 1: To solve the problem that in the use of an umbrella valve with double gate plate pressurization and locking to prevent leakage in the market, since the globe valve is installed on the valve body and the pipeline through fixing bolts, but during long-term use, the fixing bolts may be affected by alternating loads, resulting in fatigue failure. Fatigue failure will gradually reduce the strength and stiffness of the fixing bolts, and ultimately may lead to connection failure. In the application of the globe valve, if the pipeline system needs to be frequently opened and closed or withstand periodic pressure changes, the problem of fatigue failure of the fixing bolt connection may be more prominent, and thus there may be gaps causing leakage. Reference can be made to the attached Figure 1 - attached Figure 2 、attached Figure 4 and attachedFigure 6 - Appendix Figure 7 On the right side of the connecting pipe 8, a second flange 9 is fixedly installed. On the right side of the second flange 9, a gasket 11 is fixedly connected. A plurality of positioning bolts 10 penetrate through the interior of the second flange 9, and the ends of the positioning bolts 10 are inserted into the first flange 3. A first fixing sleeve 12 is sleeved on the outer wall of the connecting pipe 8. On the front and rear sides of the first fixing sleeve 12, clamping plates 13 are fixedly installed, and the ends of the clamping plates 13 are inserted into the second fixing sleeve 14. A clamping groove is formed inside the clamping plate 13. Fixing cylinders 15 penetrate through the interior of the front and rear sides of the second fixing sleeve 14. A telescopic rod 16 penetrates through the interior of the fixing cylinder 15. A spring 17 is sleeved on the outer wall of the telescopic rod 16. A moving plate 18 is fixedly installed behind the telescopic rod 16. A clamping rod 19 is fixedly connected to the rear of the moving plate 18, and the end of the clamping rod 19 is inserted into the clamping groove. The clamping plate 13 and the second fixing sleeve 14 are matched with each other, and the clamping plate 13 is arranged in a semi-circular arc structure. Both ends of the spring 17 are fixedly connected between the telescopic rod 16 and the inner wall of the fixing cylinder 15, and the telescopic rod 16 and the fixing cylinder 15 are movably connected. The clamping rod 19 and the clamping groove are detachably connected, and the clamping groove and the clamping plate 13 are integrally arranged.

[0034] By the staff connecting the umbrella valve pipe 2 connected to the umbrella valve housing 1 with the external connecting pipe 8, making the first flange 3 connected to the umbrella valve pipe 2 fit on the gasket 11 connected to the connecting pipe 8 through the second flange 9, and then manually passing each positioning bolt 10 through the second flange 9 and the first flange 3, the umbrella valve pipe 2 connected to the umbrella valve housing 1 and the external connecting pipe 8 are hermetically installed. During the installation of the umbrella valve pipe 2 and the external connecting pipe 8, manually pull each telescopic rod 16 outwards, so that while the telescopic rod 16 drives the moving plate 18 connected to the clamping rod 19 to move into the fixing cylinder 15, the spring 17 is compressed. Then, after the connecting pipe 8 drives the clamping plate 13 connected to the first fixing sleeve 12 to be inserted into the inner wall of the second fixing sleeve 14, release the pulled telescopic rods 16, so that the resilience of the spring 17 drives the clamping rod 19 connected to the moving plate 18 to be inserted into the clamping groove, thereby fixing the clamping plate 13 connected to the first fixing sleeve 12 inside the second fixing sleeve 14, increasing the fixing property of the installation of the umbrella valve pipe 2 and the external connecting pipe 8, and preventing leakage of the umbrella valve in the subsequent process.

[0035] Embodiment 2: The situation of preventing leakage can be further increased. For reference, see Appendix Figure 1 - Appendix Figure 3 and Appendix Figure 5, including an umbrella valve housing 1 and a connecting pipe 8. Two umbrella valve pipes 2 are fixedly installed on both sides of the umbrella valve housing 1. The outer ends of the umbrella valve pipes 2 are fixedly connected with first flanges 3. A bevel gear 4 is arranged on the front of the top of the umbrella valve housing 1. A valve rod 5 penetrates through the inside of the umbrella valve housing 1. A second fixing sleeve 14 is sleeved on the outer wall of the umbrella valve pipe 2; further comprising: a valve seat 6 is fixedly installed at the bottom of the valve rod 5. Two double gate plate bodies 7 are fixedly installed on both sides of the valve seat 6, and the double gate plate bodies 7 are located at the inner ends of the umbrella valve pipes 2; the connection between the umbrella valve pipes 2 and the connecting pipe 8 is a detachable connection, and the central axes of the umbrella valve pipes 2 and the double gate plate bodies 7 coincide.

[0036] The valve seat 6 connected with the double gate plate bodies 7 is driven by the valve rod 5 to open or close inside the umbrella valve housing 1, so as to control the fluid flow in the umbrella valve pipes 2. The bottoms of the umbrella valve housing 1 and the double gate plate bodies 7 are both arranged in an umbrella shape, so that the double gate plate bodies 7 can form good sealing or separation with the umbrella valve housing 1 during the opening and closing processes, further increasing the anti-leakage situation.

[0037] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0038] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double-disc pressure-locked anti-leakage umbrella valve, comprising an umbrella valve housing (1) and a connecting pipe (8), wherein umbrella valve tubes (2) are fixedly mounted on both sides of the umbrella valve housing (1), a first flange (3) is fixedly connected to the outer end of the umbrella valve tube (2), a bevel gear (4) is arranged on the front of the top of the umbrella valve housing (1), a valve stem (5) penetrates the interior of the umbrella valve housing (1), and a second fixing sleeve (14) is sleeved on the outer wall of the umbrella valve tube (2); It is characterized in that Also includes: A valve seat (6) is fixedly mounted on the bottom of the valve stem (5), and a double gate body (7) is fixedly mounted on both sides of the valve seat (6), and the double gate body (7) is located at the inner end of the umbrella valve tube (2); A second flange (9) is fixedly installed on the right side of the connecting pipe (8), a sealing gasket (11) is fixedly connected to the right side of the second flange (9), a plurality of positioning bolts (10) pass through the interior of the second flange (9), and the ends of the positioning bolts (10) are inserted into the first flange (3), and the outer wall of the connecting pipe (8) is sleeved with a first fixing sleeve (12).

2. A double-disc pressure-locked anti-leakage umbrella valve according to claim 1, characterized in that: A clamping plate (13) is fixedly mounted on both the front and rear sides of the first fixing sleeve (12), and the end of the clamping plate (13) is inserted into the second fixing sleeve (14), and a clamping groove is provided inside the clamping plate (13).

3. A double-disc pressure-locked anti-leakage umbrella valve according to claim 2, characterized in that: A fixing tube (15) is passed through the interior of the front and rear sides of the second fixing sleeve (14), a telescopic rod (16) is passed through the interior of the fixing tube (15), a spring (17) is sleeved on the outer wall of the telescopic rod (16), a movable plate (18) is fixedly installed behind the telescopic rod (16), a clamping rod (19) is fixedly connected to the rear of the movable plate (18), and the end of the clamping rod (19) is inserted into the clamping slot.

4. The double-disc pressure-locked anti-leakage umbrella valve according to claim 1, characterized in that: The umbrella valve tube (2) and the connecting tube (8) are detachably connected, and the center axis of the umbrella valve tube (2) coincides with the center axis of the double gate body (7).

5. The double-disc pressure-locked anti-leakage umbrella valve according to claim 2, characterized in that: The clamping plate (13) matches the second fixing sleeve (14), and the clamping plate (13) is configured as a semicircular arc structure.

6. The double-disc pressure-locked anti-leakage umbrella valve according to claim 3, characterized in that: The two ends of the spring (17) are fixedly connected to the telescopic rod (16) and the inner wall of the fixed cylinder (15), and the telescopic rod (16) and the fixed cylinder (15) are movably connected.

7. The double-disc pressure-locked anti-leakage umbrella valve according to claim 3, characterized in that: The clamping rod (19) and the clamping slot are detachably connected, and the clamping slot and the clamping plate (13) are integrally arranged.

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