Double-union type diaphragm valve capable of improving sealing performance

Abstract

The double-union type diaphragm valve comprises a diaphragm valve body, a protective cover is installed on the inner wall of a threaded installation groove in a rotating and inserted mode, a union is fixedly connected to one side of a sealing ring, a rotating sliding groove is formed in one side of the outer wall of the union, and a rotating ring is installed on the inner wall of the rotating sliding groove in a sliding and inserted mode. The outer wall of the rotating ring is sleeved with a diaphragm valve nut, and one side of the diaphragm valve nut is rotationally sleeved with the two sides of the outer wall of the diaphragm valve body. According to the double-union type diaphragm valve capable of improving the sealing performance, the diaphragm valve upper cover and the diaphragm valve handle can be covered and protected through the protective cover, corrosion is avoided, the use effect is poor, the diaphragm valve diaphragm can be subjected to double sealing through the waterproof groove, the positioning buckle groove and the positioning buckle block, the situation that the sealing effect is affected due to deformation after stress is avoided, and the service life is prolonged. And the union can be quickly disassembled and assembled through the diaphragm valve nut, the union can be driven to independently rotate through the rotating ring and the rotating sliding groove, and the mounting adaptability is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to diaphragm valve technical field, concretely is a double oil formula diaphragm valve of improving sealing performance. BACKGROUND

[0002] With the popular use of various valves, diaphragm valves are gradually popularized and used due to their good use characteristics. The structure of the diaphragm valve is very different from that of a general valve. It relies on a soft rubber membrane or plastic membrane to control fluid movement.

[0003] The existing diaphragm valve CN202022105647.4 can be conveniently and stably adjusted when the user needs to adjust the diaphragm valve. The user only needs to hold the butt joint handle and pull it upward along the middle end of the driving piece through the rectangular guide block to make it disengage from the clamping state with the limiting block. Then the valve adjustment work of the device can be conveniently and stably performed. At the same time, the device can be conveniently angle-locked by releasing the force of the butt joint handle, avoiding the deviation phenomenon when it is accidentally touched. However, there are some disadvantages. The existing equipment diaphragm and valve body end face are directly attached, which is easy to deform after stress, and will cause poor sealing and poor connectivity after a long time. In addition, the protection effect is not good, and it is not convenient to use. Therefore, a double oil formula diaphragm valve is needed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a double oil formula diaphragm valve to solve the problem of the diaphragm valve mentioned in the background technology, that is, the diaphragm and valve body end face are directly attached, which is easy to deform after stress, and will cause poor sealing and poor connectivity after a long time. In addition, the protection effect is not good, and it is not convenient to use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dual-oil diaphragm valve with improved sealing performance, comprising a diaphragm valve body, a diaphragm valve cover mounted on the upper end of the diaphragm valve body, and a diaphragm valve handle mounted on the upper end of the diaphragm valve cover. A diaphragm valve hardware is rotatably inserted into the inner wall of the diaphragm valve cover, and the upper end of the diaphragm valve hardware is fixedly connected to the diaphragm valve handle. A diaphragm valve diaphragm is inserted into the lower end of the diaphragm valve hardware. A waterproof groove is formed at the lower end of the diaphragm valve cover, and the diaphragm valve diaphragm is embedded in the inner wall of the waterproof groove. A positioning buckle is fixedly connected to the lower edge of the diaphragm valve diaphragm. The positioning buckle is inserted and installed, and the positioning buckle is opened at the upper end of the diaphragm valve body. The lower end of the outer wall of the diaphragm valve cover is fitted with a mounting base, and the upper outer wall of the mounting base is provided with a threaded mounting groove. The inner wall of the threaded mounting groove is fitted with a protective cover. The two sides of the diaphragm valve body are provided with sealing grooves, and the inner wall of the sealing groove is fitted with a sealing ring. One side of the sealing ring is fixedly connected to an oil reservoir, and one side of the outer wall of the oil reservoir is provided with a rotating groove. The inner wall of the rotating groove is fitted with a rotating ring, and the outer wall of the rotating ring is fitted with a diaphragm valve nut. One side of the diaphragm valve nut is fitted with both sides of the outer wall of the diaphragm valve body.

[0006] Preferably, the oil valve is installed by threaded connection between the diaphragm valve nut and the diaphragm valve body, and the oil valve is installed by snap-fit ​​sealing with the diaphragm valve body through a sealing groove and a sealing ring. The oil valve is symmetrically distributed on both sides of the diaphragm valve body.

[0007] Preferably, the oil valve is connected to the diaphragm valve nut in a limited sliding rotational manner via a rotating ring and a rotating groove.

[0008] Preferably, the protective cover is made of transparent acrylic material, and the diaphragm valve diaphragm is installed by rotating and splicing with the diaphragm valve cover and diaphragm valve handle through the mounting seat and threaded mounting groove.

[0009] Preferably, the shape of the diaphragm valve diaphragm matches the shape of the outer side of the waterproof groove, and the diaphragm valve diaphragm is connected to the waterproof groove in a close and lifting manner through the diaphragm valve hardware.

[0010] Preferably, the diaphragm of the diaphragm valve is installed in a snap-fit ​​position with the diaphragm valve body through a positioning groove and a positioning block.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: the dual-oil-type diaphragm valve with improved sealing performance can be protected by a protective cover covering the diaphragm valve cover and diaphragm valve handle to avoid corrosion and poor performance. Moreover, the diaphragm valve diaphragm can be double-sealed by a waterproof groove, positioning groove, and positioning block to avoid deformation under force and affect the sealing effect. The oil valve can be quickly disassembled and assembled by the diaphragm valve nut, and the oil valve can be rotated independently by a rotating ring and rotating slide, resulting in good installation adaptability. Attached Figure Description

[0012] Figure 1 This is a front view of a dual-oil diaphragm valve with improved sealing performance according to this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of a dual-oil diaphragm valve with improved sealing performance according to this utility model.

[0014] Figure 3 This utility model relates to a dual-oil reciprocating diaphragm valve for improving sealing performance. Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4 This utility model relates to a dual-oil reciprocating diaphragm valve for improving sealing performance. Figure 2 Enlarged view at point B in the middle;

[0016] Figure 5 This utility model relates to a dual-oil reciprocating diaphragm valve for improving sealing performance. Figure 2 Enlarged view of point C in the middle.

[0017] In the diagram: 1. Diaphragm valve body, 2. Diaphragm valve cover, 3. Diaphragm valve handle, 4. Oil reservoir, 5. Protective cover, 6. Diaphragm valve hardware, 7. Diaphragm valve nut, 8. Diaphragm valve diaphragm, 9. Mounting seat, 10. Threaded mounting groove, 11. Sealing groove, 12. Rotary ring, 13. Rotary slide, 14. Sealing ring, 15. Waterproof groove, 16. Positioning buckle groove, 17. Positioning buckle block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-5This utility model provides a technical solution: a double-oil-type diaphragm valve with improved sealing performance, comprising a diaphragm valve body 1, a diaphragm valve cover 2, a diaphragm valve handle 3, an oil reservoir 4, a protective cover 5, diaphragm valve hardware 6, a diaphragm valve nut 7, a diaphragm valve diaphragm 8, a mounting base 9, a threaded mounting groove 10, a sealing groove 11, a rotating ring 12, a rotating slide groove 13, a sealing ring 14, a waterproof groove 15, a positioning buckle groove 16, and a positioning buckle block 17. The diaphragm valve cover 2 is installed on the upper end of the diaphragm valve body 1. Furthermore, a diaphragm valve handle 3 is installed on the upper end of the diaphragm valve cover 2, and a diaphragm valve hardware 6 is rotatably inserted into the inner wall of the diaphragm valve cover 2. The upper end of the diaphragm valve hardware 6 is fixedly connected to the diaphragm valve handle 3, and a diaphragm valve diaphragm 8 is inserted into the lower end of the diaphragm valve hardware 6. The shape of the diaphragm valve diaphragm 8 matches the shape of the outer side of the waterproof groove 15, and the diaphragm valve diaphragm 8 is connected to the waterproof groove 15 in a close and lifting manner through the diaphragm valve hardware 6. This allows the diaphragm valve diaphragm 8 to be embedded and sealed, resulting in a good effect.

[0020] The diaphragm valve diaphragm 8 is installed in a snap-fit ​​configuration with the diaphragm valve body 1 via a positioning groove 16 and a positioning block 17. This ensures a secure and effective seal. A waterproof groove 15 is provided at the lower end of the diaphragm valve cover 2. The diaphragm valve diaphragm 8 is embedded in the inner wall of the waterproof groove 15. A positioning block 17 is fixedly connected to the lower edge of the diaphragm valve diaphragm 8, and the positioning block 17 is inserted into the positioning groove 16, which is located at the upper end of the diaphragm valve body 1. A mounting base 9 is fitted onto the lower end of the outer wall of the diaphragm valve cover 2, and a threaded mounting groove 10 is provided on the upper outer wall of the mounting base 9. A protective cover 5 is rotatably inserted into the inner wall of the threaded mounting groove 10. The protective cover 5 is made of transparent acrylic material, and the diaphragm valve diaphragm 8 is rotatably fitted and spliced ​​with the diaphragm valve cover 2 and the diaphragm valve handle 3 through the mounting base 9 and the threaded mounting groove 10. This allows the protective cover 5 to seal and protect the diaphragm valve cover 2 and the diaphragm valve handle 3, preventing corrosion and inconvenience in use.

[0021] The diaphragm valve body 1 has sealing grooves 11 on both sides of its edge, and sealing rings 14 are installed on the inner wall of the sealing grooves 11. An oil valve 4 is fixedly connected to one side of the sealing ring 14, and a rotating groove 13 is provided on one side of the outer wall of the oil valve 4. The oil valve 4 is installed in a threaded fit with the diaphragm valve body 1 through the diaphragm valve nut 7, and the oil valve 4 is installed in a snap-fit ​​seal with the diaphragm valve body 1 through the sealing grooves 11 and the sealing rings 14. The oil valve 4 is symmetrically distributed on both sides of the diaphragm valve body 1, which makes it easy to quickly rotate and fit the oil valve 4 for assembly and disassembly, and can also provide auxiliary sealing.

[0022] The oil valve 4 is connected to the diaphragm valve nut 7 in a limited sliding rotational manner through the rotating ring 12 and the rotating slide groove 13. This allows the oil valve 4 to rotate independently, with good connectivity and easy use. The rotating ring 12 is slidably inserted into the inner wall of the rotating slide groove 13, and the diaphragm valve nut 7 is fitted onto the outer wall of the rotating ring 12. One side of the diaphragm valve nut 7 is rotatably fitted onto both sides of the outer wall of the diaphragm valve body 1.

[0023] Working principle: When using this dual-oil reciprocating diaphragm valve with improved sealing performance, first assemble the device. Position and install the diaphragm valve diaphragm 8 through the waterproof groove 15, positioning buckle groove 16, and positioning buckle block 17. Then, rotate and fit the oil reciprocating valve 4 to the diaphragm valve body 1 through the diaphragm valve nut 7, and use the sealing groove 11 and sealing ring 14 for auxiliary fastening and sealing installation. Next, rotate and install the protective cover 5 to the mounting base 9 through the threaded mounting groove 10, and close the diaphragm valve cover 2 and diaphragm valve handle 3. When needed, the protective cover 5 can be opened, and the diaphragm valve diaphragm 8 can be rotated and raised by the diaphragm valve handle 3 and diaphragm valve hardware 6 to open it. When the oil reciprocating valve 4 needs to be adjusted in connection position, it can be rotated independently through the rotating ring 12 and rotating slide groove 13. This is the usage process of the dual-oil reciprocating diaphragm valve with improved sealing performance.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-oil diaphragm valve with improved sealing performance, comprising a diaphragm valve body (1), wherein a diaphragm valve cover (2) is mounted on the upper end of the diaphragm valve body (1), and a diaphragm valve handle (3) is mounted on the upper end of the diaphragm valve cover (2), characterized in that: The diaphragm valve cover (2) is rotatably fitted with a diaphragm valve hardware (6), and the upper end of the diaphragm valve hardware (6) is fixedly connected to the diaphragm valve handle (3). The lower end of the diaphragm valve hardware (6) is fitted with a diaphragm valve diaphragm (8). A waterproof groove (15) is provided at the lower end of the diaphragm valve cover (2). The diaphragm valve diaphragm (8) is embedded in the inner wall of the waterproof groove (15). A positioning buckle (17) is fixedly connected to the lower edge of the diaphragm valve diaphragm (8). The positioning buckle (17) is fitted with a positioning buckle groove (16). The positioning buckle groove (16) is located at the upper end of the diaphragm valve body (1). A mounting seat (9) is fitted onto the lower end of the outer wall of the diaphragm valve cover (2). The mounting base (9) has a threaded mounting groove (10) on its upper outer wall. A protective cover (5) is installed in the inner wall of the threaded mounting groove (10). A sealing groove (11) is provided on both sides of the diaphragm valve body (1). A sealing ring (14) is installed in the inner wall of the sealing groove (11). An oil liner (4) is fixedly connected to one side of the sealing ring (14). A rotating slide groove (13) is provided on one side of the outer wall of the oil liner (4). A rotating ring (12) is installed in the inner wall of the rotating slide groove (13). A diaphragm valve nut (7) is fitted on the outer wall of the rotating ring (12). One side of the diaphragm valve nut (7) is rotated and fitted on both sides of the outer wall of the diaphragm valve body (1).

2. The dual-oil reciprocating diaphragm valve with improved sealing performance according to claim 1, characterized in that: The oil valve (4) is installed by threaded connection between the diaphragm valve nut (7) and the diaphragm valve body (1), and the oil valve (4) is installed by snap-fit ​​sealing with the diaphragm valve body (1) through the sealing groove (11) and the sealing ring (14). The oil valve (4) is symmetrically distributed on both sides of the diaphragm valve body (1).

3. A dual-oil reciprocating diaphragm valve with improved sealing performance according to claim 2, characterized in that: The oil valve (4) is connected to the diaphragm valve nut (7) in a limited sliding rotational manner through the rotating ring (12) and the rotating slide groove (13).

4. A dual-oil reciprocating diaphragm valve with improved sealing performance according to claim 3, characterized in that: The protective cover (5) is made of transparent acrylic material, and the diaphragm valve diaphragm (8) is installed by rotating and splicing with the diaphragm valve cover (2) and diaphragm valve handle (3) through the mounting base (9) and threaded mounting groove (10).

5. A dual-oil reciprocating diaphragm valve with improved sealing performance according to claim 4, characterized in that: The shape of the diaphragm (8) of the diaphragm valve matches the shape of the outer side of the waterproof groove (15), and the diaphragm (8) of the diaphragm valve is connected to the waterproof groove (15) in a close and lifting manner through the diaphragm valve hardware (6).

6. A dual-oil reciprocating diaphragm valve with improved sealing performance according to claim 5, characterized in that: The diaphragm (8) of the diaphragm valve is installed in a snap-fit ​​position with the diaphragm valve body (1) through the positioning groove (16) and the positioning block (17).

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