Check valve body casting

Abstract

The utility model discloses a check valve body casting, and relates to the technical field of check valves, the check valve body casting comprises a check valve body, the inner wall of the check valve body is provided with a gasket, the inner wall of the gasket is provided with a mounting hole, the inner wall of the mounting hole is in threaded connection with a fastening bolt, the outer wall of the gasket is fixedly connected with a filter screen, and the filter screen is fixedly connected with the check valve body. The inner wall of the filter screen is provided with an opening, and the outer wall of the check valve body is fixedly connected with a spacer. According to the check valve body casting, the check valve body, the gasket, the mounting hole, the fastening bolt, the filter screen, the opening, the isolation pad and the mounting ring are matched for use, so that the filter screen of the check valve body casting is convenient to detach and replace, the detaching and replacing effect is good, the filter screen arranged on the inner wall of the check valve body is easy to attach certain impurities on the inner wall after long-time use, and the service life of the check valve body casting is prolonged. A user can screw a fastening bolt through a mounting hole, so that the gasket and the filter screen can be conveniently detached and replaced, and the use requirements of people can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of check valves, in particular to a check valve body casting. Background Art

[0002] A check valve is a valve with a circular disc as the opening and closing part. It blocks the backflow of the medium by its own weight and the pressure of the medium. It is an automatic valve and is also called a non-return valve, a one-way valve, a reflux valve or an isolation valve. The disc movement mode is divided into lift type and swing type. The lift check valve is similar to the stop valve in structure, except that it lacks the valve stem that drives the disc. The medium enters from the inlet end (the swing check valve has a disc that is tilted and can rotate around the axis, and its working principle is similar to that of the lift check valve.

[0003] The check valve body casting in the prior art has the problem of poor effect of disassembling and replacing the filter during use, which has not been solved, and is inconvenient for people to use to a certain extent; the check valve body casting in the prior art may have the phenomenon of inconvenient splicing during use, which may reduce the use effect of the device. Therefore, how to provide a check valve body casting has become a problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0004] The utility model provides a check valve body casting to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A check valve body casting comprises a check valve body, wherein the inner wall of the check valve body is provided with a gasket, the inner wall of the gasket is provided with a mounting hole, and the inner wall of the mounting hole is threadedly connected with a fastening bolt.

[0007] The outer wall of the gasket is fixedly connected with a filter screen, the inner wall of the filter screen is provided with an opening, the outer wall of the check valve body is fixedly connected with a spacer, and the outer wall of the spacer is fixedly connected with a mounting ring.

[0008] A further improvement of the technical solution of the utility model is that a circular hole is opened on the inner wall of the mounting ring, an extension screw is threadedly connected to the inner wall of the circular hole, a splicing ring is arranged on the outer wall of the extension screw, a reinforcement sleeve is fixedly connected to the outer wall of the splicing ring, a pipeline is fixedly connected to the outer wall of the splicing ring, and a valve stem is installed on the inner wall of the check valve body.

[0009] By adopting the above technical solution, the effect of structural disassembly and replacement in the solution is good, and the practicability of the device is enhanced.

[0010] A further improvement of the technical solution of the utility model is that the sizes of the valve stem and the check valve body match each other, and the valve stem is arranged in the center of the check valve body.

[0011] By adopting the above technical solution, the structural valve stem and the check valve body in the solution cooperate with each other, making the structural arrangement more reasonable.

[0012] A further improvement of the technical solution of the utility model is that the diameter of the gasket is smaller than the check valve body, and the gasket is symmetrically arranged along the central axis of the check valve body.

[0013] By adopting the above technical solution, the arrangement of the structural gasket in the solution ensures the sealing performance of the check valve body.

[0014] A further improvement of the technical solution of the utility model is that the structures of the fastening bolt and the mounting hole fit each other, and the fastening bolt passes through the washer through the mounting hole.

[0015] By adopting the above technical solution, the arrangement of the structural fastening bolts in the solution is convenient for disassembly and replacement.

[0016] A further improvement of the technical solution of the utility model is that: the lengthened screw rod passes through the installation ring and the splicing ring, and the number of the lengthened screw rods is four.

[0017] By adopting the above technical solution, the arrangement of the structural lengthened screw in the solution facilitates the splicing of the mounting ring and the splicing ring.

[0018] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0019] 1. The utility model provides a check valve body casting, which adopts the mutual cooperation of the check valve body, gasket, mounting hole, fastening bolt, filter screen, opening, spacer and mounting ring, so that the check valve body casting is easy to disassemble and replace the filter screen, and the disassembly and replacement effect is good. The filter screen arranged on the inner wall of the check valve body is easy to adhere to certain impurities on the inner wall after long-term use, which is easy to cause blockage, thereby affecting the practicality of the device. The user screws the fastening bolt through the mounting hole to facilitate the disassembly and replacement of the gasket and the filter screen, which can meet people's use needs.

[0020] 2. The utility model provides a check valve body casting, which adopts the mutual use of a round hole, an extension screw, a splicing ring, a reinforcement sleeve, a pipe and a valve stem, so that the check valve body casting is easy to splice, the splicing effect is good, and the applicability of the check valve body casting is improved. The user turns the extension screw, which is convenient for turning the extension screw, and is convenient for fixing and splicing the splicing ring and the installation ring, thereby improving the use effect of the device to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall structure diagram of the utility model;

[0022] Figure 2 It is a front cross-sectional view of the utility model;

[0023] Figure 3 It is a side sectional view of the utility model;

[0024] Figure 4 For the utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 5 For the utility model Figure 3 Enlarged view of point B in the middle.

[0026] In the figure: 1. Check valve body; 2. Gasket; 3. Mounting hole; 4. Fastening bolt; 5. Filter screen; 6. Opening; 7. Spacer; 8. Mounting ring; 9. Round hole; 10. Extension screw; 11. Splicing ring; 12. Reinforcement sleeve; 13. Pipeline; 14. Valve stem. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below in conjunction with the embodiments:

[0028] Example 1

[0029] like Figure 1-5 As shown, the utility model provides a check valve body casting, including a check valve body 1, the inner wall of the check valve body 1 is provided with a gasket 2, the inner wall of the gasket 2 is provided with a mounting hole 3, and the inner wall of the mounting hole 3 is threadedly connected with a fastening bolt 4.

[0030] A filter screen 5 is fixedly connected to the outer wall of the gasket 2 , an opening 6 is formed on the inner wall of the filter screen 5 , a spacer 7 is fixedly connected to the outer wall of the check valve body 1 , and a mounting ring 8 is fixedly connected to the outer wall of the spacer 7 .

[0031] In this embodiment, the check valve body 1, gasket 2, mounting hole 3, fastening bolt 4, filter screen 5, opening 6, spacer 7 and mounting ring 8 are used in coordination with each other, so that the check valve body casting is easy to disassemble and replace the filter screen, and the disassembly and replacement effect is good. The filter screen 5 arranged on the inner wall of the check valve body 1 is prone to certain impurities adhering to the inner wall after long-term use, which is easy to cause blockage, thereby affecting the practicality of the device. The user screws the fastening bolt 4 through the mounting hole 3 to facilitate the disassembly and replacement of the gasket 2 and the filter screen 5, which can meet people's usage needs.

[0032] Example 2

[0033] like Figure 1-5As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a circular hole 9 is opened on the inner wall of the mounting ring 8, an extension screw 10 is threadedly connected to the inner wall of the circular hole 9, a splicing ring 11 is provided on the outer wall of the extension screw 10, a reinforcement sleeve 12 is fixedly connected to the outer wall of the splicing ring 11, a pipe 13 is fixedly connected to the outer wall of the splicing ring 11, and a valve stem 14 is installed on the inner wall of the check valve body 1.

[0034] In this embodiment, the structural disassembly and replacement effect in this solution is good, which enhances the practicability of the device.

[0035] In this embodiment, the circular hole 9, the extended screw 10, the splicing ring 11, the reinforcement sleeve 12, the pipe 13 and the valve stem 14 are used in coordination with each other, so that the check valve body casting is easy to splice, the splicing effect is good, and the applicability of the check valve body casting is improved. The user turns the extended screw 10, which makes it easier to turn the extended screw 10, and the splicing ring 11 and the mounting ring 8 are fixedly spliced, thereby improving the use effect of the device to a certain extent.

[0036] Example 3

[0037] like Figure 1-5 As shown, based on Example 1 and Example 2, the utility model provides a technical solution: preferably, the size of the valve stem 14 and the check valve body 1 match each other, and the valve stem 14 is arranged in the center of the check valve body 1.

[0038] In this embodiment, the valve stem 14 and the check valve body 1 in the solution cooperate with each other, making the structural arrangement more reasonable.

[0039] Preferably, the diameter of the gasket 2 is smaller than that of the check valve body 1 , and the gasket 2 is symmetrically arranged along the central axis of the check valve body 1 .

[0040] In this embodiment, the arrangement of the structural gasket 2 in this solution ensures the sealing performance of the check valve body 1 .

[0041] Preferably, the structures of the fastening bolt 4 and the mounting hole 3 match each other, and the fastening bolt 4 passes through the mounting hole 3 and penetrates the gasket 2 .

[0042] In this embodiment, the arrangement of the structural fastening bolt 4 in this solution facilitates disassembly and replacement.

[0043] Preferably, the lengthened screw rod 10 passes through the mounting ring 8 and the splicing ring 11 , and the number of the lengthened screw rods 10 is four.

[0044] In this embodiment, the arrangement of the structurally lengthened screw rod 10 in this solution facilitates the splicing of the mounting ring 8 and the splicing ring 11 .

[0045] The following is a detailed description of the working principle of the check valve body casting.

[0046] like Figure 1-5 As shown, when the check valve body casting is used, the filter screen 5 arranged on the inner wall of the check valve body 1 is prone to certain impurities adhering to the inner wall after long-term use, which is easy to cause blockage, thereby affecting the practicality of the device. The user screws the fastening bolt 4 through the mounting hole 3 to facilitate the disassembly and replacement of the gasket 2 and the filter screen 5. The user screws the extension screw 10 to facilitate the fixing and splicing of the splicing ring 11 and the mounting ring 8.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A check valve body casting, comprising a check valve body (1), Features: The inner wall of the check valve body (1) is provided with a gasket (2), the inner wall of the gasket (2) is provided with a mounting hole (3), and the inner wall of the mounting hole (3) is threadedly connected with a fastening bolt (4); The outer wall of the gasket (2) is fixedly connected to a filter screen (5), the inner wall of the filter screen (5) is provided with an opening (6), the outer wall of the check valve body (1) is fixedly connected to a spacer (7), and the outer wall of the spacer (7) is fixedly connected to a mounting ring (8).

2. A check valve body casting according to claim 1, Features: The inner wall of the mounting ring (8) is provided with a circular hole (9), the inner wall of the circular hole (9) is threadedly connected with an extended screw (10), the outer wall of the extended screw (10) is provided with a splicing ring (11), the outer wall of the splicing ring (11) is fixedly connected with a reinforcement sleeve (12), the outer wall of the splicing ring (11) is fixedly connected with a pipeline (13), and the inner wall of the check valve body (1) is provided with a valve stem (14).

3. A check valve body casting according to claim 2, Features: The valve stem (14) and the check valve body (1) are matched in size, and the valve stem (14) is arranged at the exact center of the check valve body (1).

4. A check valve body casting according to claim 1, Features: The diameter of the gasket (2) is smaller than that of the check valve body (1), and the gasket (2) is symmetrically arranged along the central axis of the check valve body (1).

5. A check valve body casting according to claim 1, Features: The structures of the fastening bolt (4) and the mounting hole (3) fit each other, and the fastening bolt (4) passes through the mounting hole (3) and penetrates the gasket (2).

6. A check valve body casting according to claim 2, Features: The lengthened screw rod (10) passes through the mounting ring (8) and the splicing ring (11), and the number of the lengthened screw rods (10) is four.

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