Gulp valve of double-sealing mechanism

Abstract

The utility model discloses a double-sealing mechanism gulp valve which comprises a gulp valve body, the bottom end of the gulp valve body is in threaded connection with a first connecting pipe, a second connecting pipe is arranged at the bottom of the first connecting pipe, and the bottom end of the first connecting pipe is connected with the top end of the second connecting pipe in an inserted mode. A first flange plate is fixedly connected to the circumferential outer wall of the first connecting pipe, a second flange plate is fixedly connected to the circumferential outer wall of the second connecting pipe, a first clamping groove is formed in the bottom of the first flange plate, a first rubber protruding block is fixedly connected to the bottom of the first flange plate, and a second clamping groove is formed in the top of the second flange plate. According to the gulp valve sealing mechanism, the first rubber protruding block and the second clamping groove are connected in a clamped mode, the second rubber protruding block and the first clamping groove are connected in a clamped mode, the double functions can be achieved on the outer side of the connecting position of the first connecting pipe and the second connecting pipe, and the first rubber protruding block and the second rubber protruding block are staggered up and down, so that the sealing performance of the gulp valve sealing mechanism is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of valve sealing technology, and in particular to a double-sealing mechanism air supply valve. Background Technology

[0002] In most pneumatic conveying systems, materials are transported to their destination via differential pressure. Differential pressure conveying systems require a continuous supply of gas to maintain the pressure required for material transport, and similarly, gas must be supplied to the conveying pipeline to ensure the flow of materials within the pipeline.

[0003] Currently, most existing air-replenishing valve sealing mechanisms adopt a single-seal structure, which is susceptible to wear and pressure fluctuations during long-term use, leading to a decline in sealing performance and gas leakage. In order to advance industry technology, better achieve high airtightness sealing function, and improve core technology competitiveness, this application proposes a new implementation scheme that differs from the leakage present in existing air-replenishing valve sealing mechanisms. Utility Model Content

[0004] The purpose of this invention is to solve the leakage problem of the existing air replenishment valve sealing mechanism, and to propose a double-sealing air replenishment valve.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A double-sealing mechanism air replenishment valve includes an air replenishment valve body. The bottom end of the air replenishment valve body is threadedly connected to a first connecting pipe, and the bottom of the first connecting pipe is provided with a second connecting pipe. The bottom end of the first connecting pipe is inserted into the top end of the second connecting pipe. A first flange is fixedly connected to the outer circumference of the first connecting pipe, and a second flange is fixedly connected to the outer circumference of the second connecting pipe. The bottom of the first flange is provided with a first groove, and a first rubber protrusion is fixedly connected to the bottom of the first flange. The top of the second flange is provided with a second groove, and the first rubber protrusion engages with the second groove. The top of the second flange is fixedly connected with a second rubber protrusion, and the second rubber protrusion engages with the first groove.

[0007] Furthermore, a handle is fixedly connected to one end of the valve stem of the air replenishment valve body, and an anti-slip sleeve is fitted onto the outer wall of the handle.

[0008] Furthermore, the outer circumferential wall of the first connecting pipe is provided with an installation groove, and a sealing ring is snapped into the installation groove.

[0009] Furthermore, the sealing ring is a rubber ring, and the rubber ring is in contact with the inner wall of the second connecting pipe.

[0010] Furthermore, both the first flange and the second flange are provided with multiple mounting holes.

[0011] Furthermore, a fixing bolt is inserted into the mounting hole, and both ends of the fixing bolt are threaded with nuts.

[0012] Furthermore, a delivery pipe is fixedly connected to the bottom end of the second connecting pipe.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The design of the first rubber protrusion engaging with the second slot and the second rubber protrusion engaging with the first slot allows for a dual function on the outside of the connection between the first connecting pipe and the second connecting pipe. Furthermore, the staggered arrangement of the first and second rubber protrusions enhances the sealing performance of the air supply valve sealing mechanism.

[0015] 2. By inserting the fixing bolt into the mounting hole and tightening the nut, the connection between the first connecting pipe and the second connecting pipe is strengthened. The operation is simple, convenient and quick, which facilitates subsequent maintenance. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a double-sealing mechanism air supply valve proposed in this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of a double-sealing mechanism air supply valve proposed in this utility model;

[0018] Figure 3 This is an exploded structural diagram of a double-sealing mechanism air supply valve proposed in this utility model;

[0019] Figure 4 This is a partial three-dimensional structural diagram of a double-sealing mechanism air supply valve proposed in this utility model.

[0020] In the diagram: 1. Air supply valve body; 2. Handle; 3. First connecting pipe; 4. First flange; 5. Mounting groove; 6. Sealing ring; 7. First slot; 8. First rubber protrusion; 9. Delivery pipe; 10. Second connecting pipe; 11. Second flange; 12. Second slot; 13. Second rubber protrusion; 14. Fixing bolt; 15. Mounting hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figures 1-4A double-sealing air supply valve includes an air supply valve body 1. The bottom end of the air supply valve body 1 is threadedly connected to a first connecting pipe 3. A second connecting pipe 10 is provided at the bottom of the first connecting pipe 3. The bottom end of the first connecting pipe 3 is inserted into the top end of the second connecting pipe 10. The outer circumferential wall of the first connecting pipe 3 is provided with an installation groove 5. A sealing ring 6 is snapped into the installation groove 5. The sealing ring 6 is a rubber ring and contacts the inner wall of the second connecting pipe 10. The sealing ring 6 provides a basic seal between the first connecting pipe 3 and the second connecting pipe 10.

[0023] In this utility model, a first flange 4 is welded to the outer circumference of the first connecting pipe 3, a first groove 7 is provided at the bottom of the first flange 4, the first groove 7 is a stepped groove structure, and a first rubber protrusion 8 is bonded to the bottom of the first flange 4, the first rubber protrusion 8 is a stepped ring structure.

[0024] The second connecting pipe 10 has a second flange 11 welded to its outer circumference. The top of the second flange 11 is provided with a second slot 12. The second slot 12 has a stepped groove structure. The first rubber protrusion 8 is engaged with the second slot 12.

[0025] The top of the second flange 11 is bonded with a second rubber protrusion 13, which is a stepped ring structure and engages with the first slot 7.

[0026] The first rubber protrusion 8 engages with the second slot 12, and the second rubber protrusion 13 engages with the first slot 7, providing a double second layer of sealing at the connection between the first connecting pipe 3 and the second connecting pipe 10.

[0027] A handle 2 is welded to one end of the valve stem of the gas replenishment valve body 1. An anti-slip sleeve is fitted on the outer wall of the handle 2. The operation of the handle 2 drives the valve stem to move, thereby controlling the opening and closing state of the gas replenishment valve body 1. A delivery pipe 9 is welded to the bottom end of the second connecting pipe 10. Gas is transmitted to the delivery pipe 9 through the first connecting pipe 3 and the second connecting pipe 10, and finally delivered to the equipment or pipeline that needs gas replenishment.

[0028] The first flange 4 and the second flange 11 are each provided with a plurality of mounting holes 15. Fixing bolts 14 are inserted into the mounting holes 15. Nuts are threaded to both ends of the fixing bolts 14. The fixing bolts 14 are inserted into the mounting holes 15 and the nuts are tightened, thereby completing the connection between the first connecting pipe 3 and the second connecting pipe 10.

[0029] The working principle of this embodiment is as follows: In use, firstly, the first connecting pipe 3 is inserted into the second connecting pipe 10, then the fixing bolt 14 is inserted into the mounting hole 15, and the nut is tightened to complete the connection between the first connecting pipe 3 and the second connecting pipe 10. At this time, the sealing ring 6 plays a basic sealing role between the first connecting pipe 3 and the second connecting pipe 10. At the same time, the first rubber protrusion 8 is engaged with the second slot 12 and the second rubber protrusion 13 is engaged with the first slot 7 on the outside of the connection between the first connecting pipe 3 and the second connecting pipe 10, which plays a dual role. The first rubber protrusion 8 and the second rubber protrusion 13 are staggered to further improve the airtightness of the first connecting pipe 3 and the second connecting pipe 10.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-seal mechanism air supply valve comprising an air supply valve body (1), characterized in that, The bottom end of the air supply valve body (1) is threaded with a first connecting pipe (3), and the bottom of the first connecting pipe (3) is provided with a second connecting pipe (10). The bottom end of the first connecting pipe (3) is inserted into the top end of the second connecting pipe (10). The outer circumference of the first connecting pipe (3) is fixedly connected with a first flange (4), and the outer circumference of the second connecting pipe (10) is fixedly connected with a second flange (11). The bottom of the first flange (4) is provided with a first groove (7), and the bottom of the first flange (4) is fixedly connected with a first rubber protrusion (8). The top of the second flange (11) is provided with a second groove (12), and the first rubber protrusion (8) is engaged with the second groove (12). The top of the second flange (11) is fixedly connected with a second rubber protrusion (13), and the second rubber protrusion (13) is engaged with the first groove (7).

2. A dual seal mechanism air admission valve according to claim 1, wherein, The valve stem of the air replenishment valve body (1) is fixedly connected to a handle (2), and the outer wall of the handle (2) is fitted with an anti-slip sleeve.

3. The dual seal mechanism air admission valve of claim 1, wherein, The outer circumferential wall of the first connecting pipe (3) is provided with an installation groove (5), and a sealing ring (6) is snapped into the installation groove (5).

4. A dual seal mechanism air admission valve according to claim 3, wherein, The sealing ring (6) is a rubber ring, and the rubber ring is in contact with the inner wall of the second connecting pipe (10).

5. The dual seal mechanism air admission valve of claim 1, wherein, Both the first flange (4) and the second flange (11) are provided with multiple mounting holes (15).

6. A dual seal mechanism air admission valve according to claim 5, wherein, A fixing bolt (14) is inserted into the mounting hole (15), and nuts are threaded to both ends of the fixing bolt (14).

7. The dual seal mechanism air admission valve of claim 1, wherein, The bottom end of the second connecting pipe (10) is fixedly connected to the conveying pipe (9).

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