Position display plastic diaphragm valve

Abstract

The utility model relates to the technical field of diaphragm valves, and discloses a position display plastic diaphragm valve which comprises a diaphragm valve body, through pipes are arranged at the two ends of the diaphragm valve body, rectangular blocks are arranged on the outer surfaces of the through pipes, sliding grooves are formed in the inner surfaces of the through pipes, one end of each sliding groove extends into the corresponding rectangular block, and an abutting block is connected into each sliding groove in a sliding mode. A threaded rod is arranged at one end of the abutting block, the end, away from the abutting block, of the threaded rod penetrates through the rectangular block and extends towards the outer side, a column body is installed at the end, away from the abutting block, of the threaded rod, a filter cartridge is installed in the through pipe and is a single-side closed cylinder, and a plurality of filter holes are formed in one end of the filter cartridge; the outer surface of the abutting block abuts against the outer surface of the filter cylinder. Medium flowing into the through pipe can be filtered through the arranged filter cartridge, impurities in the medium are prevented from flowing into the diaphragm valve body through the through pipe, the use effect and the service life of the diaphragm valve body are not affected, and good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm valves, in particular to a position indicating plastic diaphragm valve. Background Art

[0002] The diaphragm valve is a stop valve that uses a diaphragm as an opening and closing member to close the flow channel, cut off the fluid, and separate the inner cavity of the valve body from the inner cavity of the valve cover. The diaphragm is usually made of rubber, plastic and other materials. It has a simple structure, good sealing and corrosion resistance, and small fluid resistance. It is used for low-pressure, low-temperature, highly corrosive media and media containing suspended matter.

[0003] The utility model patent application document with the publication number "CN212131381U" discloses a diaphragm valve, which is mainly composed of a valve body, a valve disc, a diaphragm and a support rod. The arc-shaped sealing extrusion surface on the annular protrusion of this technical solution not only increases the effective sealing area of ​​the sealing extrusion surface, but also the sealing effect between the sealing extrusion surface and the annular groove is not easy to cause stress concentration and damage the annular protrusion, thus playing a protective role.

[0004] The diaphragm valve disclosed in the above document has the following defect: the diaphragm valve cannot filter the medium circulating inside when conveying the medium, so the circulating medium may contain some impurities.

[0005] It can be seen from this that the existing diaphragm valve does not have a structure for filtering impurities, and it is necessary to improve the existing deficiencies and provide a position-indicating plastic diaphragm valve. Utility Model Content

[0006] The purpose of the utility model is to provide a position indicating plastic diaphragm valve to solve the problems raised in the above background technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a position-indicating plastic diaphragm valve, comprising a diaphragm valve body, both ends of the diaphragm valve body are provided with through pipes, the outer surface of the through pipe is provided with a rectangular block, the inner surface of the through pipe is provided with a slide groove, one end of the slide groove extends to the inside of the rectangular block, the inside of the slide groove is slidably connected with an abutment block, one end of the abutment block is provided with a threaded rod, the end of the threaded rod away from the abutment block passes through the rectangular block and extends outward, a column is installed at the end of the threaded rod away from the abutment block, a filter cartridge is installed inside the through pipe, the filter cartridge is a single-sided closed cylinder, one end of the filter cartridge is provided with a plurality of filter holes, the outer surface of the abutment block abuts against the outer surface of the filter cartridge, and the outer surface of the column is provided with a first anti-slip stripe.

[0009] Furthermore, a liquid level gauge is installed at one end of the diaphragm valve body, and a handle is rotatably connected to the inside of the filter cartridge via a pin rod.

[0010] Furthermore, a protective ring is provided at one end of the rectangular block, and the internal thread of the protective ring is connected to a threaded rod.

[0011] Furthermore, an auxiliary groove is provided on the inner surface of the slide groove, a sliding block is provided on the outer surface of the abutment block, the sliding block is slidably connected inside the auxiliary groove, and a second anti-slip stripe is provided on one end of the abutment block close to the filter cartridge.

[0012] Furthermore, a limiting groove is provided on the inner surface of the through pipe, and a limiting block is provided on the outer surface of the filter cartridge, and the limiting block is slidably connected to the inside of the limiting groove.

[0013] Furthermore, a connecting ear block is provided on the outer surface of the through pipe, bolts are installed inside the connecting ear block, and the through pipe is movably installed with the connecting flange through the bolts.

[0014] Furthermore, a sealing groove is provided at one end of the through pipe close to the connecting flange, a sealing block is provided at one end of the connecting flange close to the through pipe, and a sealing block is installed in the sealing groove.

[0015] The utility model has the following beneficial effects:

[0016] (1) The utility model can filter the medium flowing into the interior of the through pipe by means of the filter cartridge, thereby preventing impurities in the medium from flowing into the interior of the diaphragm valve body through the through pipe and affecting the use effect and service life of the diaphragm valve body, thereby achieving good practicality.

[0017] (2) The utility model rotates the column counterclockwise so that the column drives the threaded rod to rotate, so that the threaded rod moves to the outside of the rectangular block. When the threaded rod moves, the abutment block moves inside the slide groove. When the outer surface of the abutment block and the filter cartridge cancel the abutment relationship, the handle is pulled outward to make the limit block slide inside the limit groove, and the filter cartridge slides out from the inside of the through pipe. Then, the inside of the filter cartridge can be cleaned to achieve a better cleaning effect.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is an exploded view of the local structure of the utility model;

[0022] Figure 3 This is a cross-sectional view of the through pipe structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the through pipe structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the filter cartridge of the utility model;

[0025] Figure 6 This is a schematic diagram of the connecting flange structure of the utility model;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] In the figure: 1. Diaphragm valve body; 101. Through pipe; 102. Rectangular block; 103. Slide groove; 104. Protective ring; 105. Auxiliary groove; 106. Limit groove; 107. Connecting ear block; 108. Sealing groove; 2. Abutment block; 201. Sliding block; 3. Threaded rod; 4. Cylinder; 401. First anti-slip stripe; 5. Filter cartridge; 501. Limit block; 6. Liquid level gauge; 7. Handle; 8. Bolt; 9. Connecting flange; 901. Sealing block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1 - Figure 6As shown, the utility model is a position-displaying plastic diaphragm valve, comprising a diaphragm valve body 1, both ends of the diaphragm valve body 1 are provided with a through pipe 101, the outer surface of the through pipe 101 is provided with a rectangular block 102, the inner surface of the through pipe 101 is provided with a slide groove 103, one end of the slide groove 103 extends to the inside of the rectangular block 102, the inside of the slide groove 103 is slidably connected with an abutment block 2, one end of the abutment block 2 is provided with a threaded rod 3, the end of the threaded rod 3 away from the abutment block 2 passes through the rectangular block 102 and extends outward, the end of the threaded rod 3 away from the abutment block 2 is installed with a column 4, a filter cartridge 5 is installed inside the through pipe 101, the filter cartridge 5 is a single-sided closed cylinder, one end of the filter cartridge 5 is provided with a plurality of filter holes, the outer surface of the abutment block 2 abuts against the outer surface of the filter cartridge 5, and the outer surface of the column 4 is provided with a first anti-slip stripe 401.

[0030] A liquid level gauge 6 is installed at one end of the diaphragm valve body 1, and a handle 7 is rotatably connected to the inside of the filter cartridge 5 through a pin rod.

[0031] A protective ring 104 is provided at one end of the rectangular block 102 , and the internal thread of the protective ring 104 is connected to the threaded rod 3 .

[0032] An auxiliary groove 105 is formed on the inner surface of the slide groove 103 , a slider 201 is formed on the outer surface of the abutment block 2 , and the slider 201 is slidably connected inside the auxiliary groove 105 . A second anti-slip stripe is formed on one end of the abutment block 2 close to the filter cartridge 5 .

[0033] A limiting groove 106 is provided on the inner surface of the through pipe 101 , and a limiting block 501 is provided on the outer surface of the filter cartridge 5 . The limiting block 501 is slidably connected inside the limiting groove 106 .

[0034] A connecting lug 107 is provided on the outer surface of the through pipe 101 , and bolts 8 are installed inside the connecting lug 107 . The through pipe 101 is movably installed with the connecting flange 9 via the bolts 8 .

[0035] A sealing groove 108 is formed at one end of the through pipe 101 close to the connecting flange 9 , and a sealing block 901 is formed at one end of the connecting flange 9 close to the through pipe 101 . The sealing block 901 is installed in the sealing groove 108 .

[0036] When in use, first install the external water inlet pipe and the connecting flange 9 close to one side of the filter cartridge 5, then install the external water outlet pipe and the other connecting flange 9, then open the water valve, and the medium flows to the inside of the through pipe 101 through the water inlet pipe. After the medium enters the inside of the through pipe 101, it is filtered through the filter cartridge 5, and the filtered medium enters the diaphragm valve body 1, and then is discharged through the water outlet pipe. The filter cartridge 5 can filter the medium flowing into the through pipe 101, so as to prevent impurities in the medium from flowing to the inside of the diaphragm valve body 1 through the through pipe 101, affecting the use effect and service life of the diaphragm valve body 1, and having better practicality. When the filter cartridge When cleaning is needed, first, the bolt 8 is removed by rotating it counterclockwise to cancel the fixed installation of the connecting flange 9 and the through pipe 101, and then the column 4 is rotated counterclockwise to make the column 4 drive the threaded rod 3 to rotate, so that the threaded rod 3 moves to the outside of the rectangular block 102, and the abutment block 2 moves inside the slide groove 103 while the threaded rod 3 moves. When the outer surface of the abutment block 2 cancels the abutment relationship with the filter cartridge 5, the handle 7 is pulled outward at this time to make the limit block 501 slide inside the limit groove 106, and at the same time make the filter cartridge 5 slide out from the inside of the through pipe 101, and then the inside of the filter cartridge 5 can be cleaned to achieve a better cleaning effect.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A position-indicating plastic diaphragm valve, comprising a diaphragm valve body (1), characterized in that: Both ends of the diaphragm valve body (1) are provided with a through pipe (101), the outer surface of the through pipe (101) is provided with a rectangular block (102), the inner surface of the through pipe (101) is provided with a slide groove (103), one end of the slide groove (103) extends to the inside of the rectangular block (102), the inside of the slide groove (103) is slidably connected with an abutment block (2), one end of the abutment block (2) is provided with a threaded rod (3), the end of the threaded rod (3) away from the abutment block (2) penetrates the rectangular block (102) and extends outward, and the end of the threaded rod (3) away from the abutment block (2) is installed with a column (4); A filter cartridge (5) is installed inside the through pipe (101), the filter cartridge (5) is a single-side closed cylinder, one end of the filter cartridge (5) is provided with a plurality of filter holes, the outer surface of the abutment block (2) abuts against the outer surface of the filter cartridge (5), and the outer surface of the column (4) is provided with a first anti-slip stripe (401).

2. A position indicating plastic diaphragm valve according to claim 1, characterized in that: A liquid level meter (6) is installed at one end of the diaphragm valve body (1), and a handle (7) is rotatably connected to the interior of the filter cartridge (5) via a pin.

3. A position indicating plastic diaphragm valve according to claim 1, characterized in that: A protective ring (104) is provided at one end of the rectangular block (102), and a threaded rod (3) is connected to the inner thread of the protective ring (104).

4. A position indicating plastic diaphragm valve according to claim 1, characterized in that: The inner surface of the slide groove (103) is provided with an auxiliary groove (105), the outer surface of the abutment block (2) is provided with a sliding block (201), the sliding block (201) is slidably connected inside the auxiliary groove (105), and the end of the abutment block (2) close to the filter cartridge (5) is provided with a second anti-slip stripe.

5. The position indicating plastic diaphragm valve according to claim 1, characterized in that: The inner surface of the through pipe (101) is provided with a limiting groove (106), and the outer surface of the filter cartridge (5) is provided with a limiting block (501), and the limiting block (501) is slidably connected inside the limiting groove (106).

6. A position indicating plastic diaphragm valve according to claim 1, characterized in that: The outer surface of the through pipe (101) is provided with a connecting ear block (107), a bolt (8) is installed inside the connecting ear block (107), and the through pipe (101) is movably installed with the connecting flange (9) via the bolt (8).

7. A position indicating plastic diaphragm valve according to claim 6, characterized in that: A sealing groove (108) is provided at one end of the through pipe (101) close to the connecting flange (9), a sealing block (901) is provided at one end of the connecting flange (9) close to the through pipe (101), and the sealing block (901) is installed in the interior of the sealing groove (108).

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