Rust-proof and corrosion-resistant stainless steel pump valve casting

Abstract

The utility model relates to the technical field of stainless steel pump valve castings, in particular to a rust-proof and corrosion-resistant stainless steel pump valve casting which comprises a pump valve casting body and a connecting pipe fitting matched with the pump valve casting body, tightening latches are arranged in a plurality of first through holes, and bolt caps are annularly arranged at the upper ends of the tightening latches. First sealing rubber pads are arranged on the lower inner walls of the two first sealing grooves, springs are connected to the outer portions of the tightening latches in a sleeving mode, second sealing rubber pads are arranged between the first flanges and the second flanges, and nuts are connected to the lower ends of the tightening latches in a threaded mode. The bolt edge extends into the first sealing groove, so that the bolt edge is pressed on the first sealing rubber mat, and external moisture and water flow are prevented from entering the first through hole to corrode a pump valve casting; after the tightening latch is connected with the nut, the nut stably abuts against the second flange under the action of compression force of the arranged spring, and external moisture and water flow are prevented from entering the second through hole to corrode the pump valve casting.

Description

Technical Field

[0001] The utility model relates to the technical field of stainless steel pump and valve castings, in particular to rust-proof and corrosion-resistant stainless steel pump and valve castings. Background Art

[0002] Pump valves are a general term for pumps and valves, not valves used for pumps or valves that have pumping functions. They are used for liquid transportation. Pumps and valves are often linked together because of their application. That is, wherever there is a pump, there is usually a valve, and wherever there is a valve, there is often a pump. They are both used in liquid transportation.

[0003] For example, the authorization announcement number "CN216479160U" is titled "A high-temperature and deformation-resistant high-manganese stainless steel pump and valve casting." Although the anti-oxidation and corrosion-resistant coating enhances the oxidation and corrosion resistance of the outer surface of the high-manganese stainless steel pump and valve casting, and the high-temperature resistant coating allows the high-manganese stainless steel pump and valve casting to be used in high-temperature environments, and the insulating coating protects the high-manganese stainless steel pump and valve casting from the effects of electric current during use, the mounting ring mechanism has an incomplete seal, which can cause rust and corrosion. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a rust-proof and corrosion-resistant stainless steel pump valve casting.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A rust-proof and corrosion-resistant stainless steel pump valve casting is designed, comprising a pump valve casting body and a matching connecting pipe fitting. A first flange is provided at the lower end of the pump valve casting body, and a second flange is provided at the upper end of the connecting pipe fitting. A plurality of first through holes are evenly provided on the surface of the first flange, and a plurality of second through holes are evenly provided on the surface of the second flange. The plurality of second through holes correspond one-to-one to the first through holes. A bolt rod is provided inside the plurality of first through holes. A bolt cap is provided in an annular manner on the upper end of the plurality of bolt rods. A bolt edge is provided on the side surface and inner wall of the bolt cap. Two first sealing grooves correspond one-to-one to the bolt edge on the upper surface of the first flange. The bolt edge matches the first sealing groove. A first sealing gasket is provided on the lower inner wall of the two first sealing grooves. A spring is sleeved on the outside of the plurality of bolt rods. The lower end of the spring is connected to the upper surface of the first flange, and the upper end of the spring is connected to the lower surface of the bolt cap. A second sealing gasket is provided between the first flange and the second flange. A plurality of gasket holes are provided on the surface of the second sealing gasket corresponding one-to-one to the first through holes. The lower end of the bolt rod passes through the gasket hole and the first through hole, and a nut is threadedly connected to the lower end of the bolt rod.

[0007] Preferably, a second sealing groove is provided on the lower surface of the first flange, and the second sealing groove matches the second sealing gasket. A mounting groove is provided on the lower surface of the second sealing gasket, and the mounting groove matches the second flange.

[0008] Preferably, a third sealing groove is provided at the lower end of each of the plurality of second through holes, and a third sealing rubber pad is provided on the upper inner wall of each of the plurality of third sealing grooves.

[0009] Preferably, the inner walls of the plurality of third sealing grooves are provided with a first positioning groove in an annular shape, and the upper surfaces of the plurality of third sealing rubber pads are provided with a first positioning block in an annular shape, and the upper end of the first positioning block extends into the first positioning groove.

[0010] Preferably, a plurality of handles are evenly arranged on the upper surface of the bolt cap.

[0011] Preferably, a second positioning groove is provided in an annular shape on the lower inner walls of the two first sealing grooves, and a second positioning block is provided in an annular shape on the lower surfaces of the two first sealing rubber pads, and the lower end of the second positioning block extends into the second positioning groove.

[0012] The rust-proof and corrosion-resistant stainless steel pump and valve casting proposed by the utility model has the following beneficial effects: the bolt edge is extended into the first sealing groove by the arrangement, so that the bolt edge is pressed on the first sealing gasket, thereby preventing external moisture and water from entering the first through hole to corrode the pump and valve casting, causing the pump and valve casting to rust; when the bolt rod is connected to the nut, the compression force of the arranged spring is used to make the nut firmly press against the second flange, thereby preventing external moisture and water from entering the second through hole to corrode the pump and valve casting, causing the pump and valve casting to rust; the arrangement of the second sealing gasket further prevents the pump and valve casting from being corroded, and avoids the pump and valve casting from rusting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural sectional view of the utility model;

[0015] Figure 3 This is an enlarged view of position A of the present utility model;

[0016] Figure 4 This is an enlarged view of position B of the present utility model.

[0017] In the figure: pump valve casting body 1, connecting pipe fitting 2, first flange 3, second flange 4, first through hole 5, second through hole 6, bolt rod 7, bolt cap 8, bolt edge 9, first sealing groove 10, first sealing rubber gasket 11, spring 12, second sealing rubber gasket 13, rubber gasket hole 14, nut 15, second sealing groove 16, mounting groove 17, third sealing groove 18, third sealing rubber gasket 19, first positioning groove 20, first positioning block 21, handle 22, second positioning groove 23, second positioning block 24. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-4 , rust-proof and corrosion-resistant stainless steel pump valve casting, including a pump valve casting body 1 and a matching connecting pipe 2, the lower end of the pump valve casting body 1 is provided with a first flange 3, the upper end of the connecting pipe 2 is provided with a second flange 4, the surface of the first flange 3 is evenly provided with a plurality of first through holes 5, the surface of the second flange 4 is evenly provided with a plurality of second through holes 6, the plurality of second through holes 6 correspond one to one with the first through holes 5, the interior of the plurality of first through holes 5 is provided with a bolt rod 7, the upper end of the plurality of bolt rods 7 is provided with a bolt cap 8 in an annular manner, the side surface and the inner wall of the bolt cap 8 are provided with a bolt edge 9, the upper surface of the first flange 3 is one-to-one with the bolt edge 9 There should be two first sealing grooves 10, the bolt edge 9 and the first sealing groove 10 match, the lower inner walls of the two first sealing grooves 10 are provided with a first sealing rubber gasket 11, and the outside of multiple bolt rods 7 are sleeved with a spring 12, the lower end of the spring 12 is connected to the upper surface of the first flange 3, and the upper end of the spring 12 is connected to the lower surface of the bolt cap 8. A second sealing rubber gasket 13 is provided between the first flange 3 and the second flange 4. There are multiple rubber gasket holes 14 on the surface of the second sealing rubber gasket 13 corresponding to the first through hole 5 one by one. The lower end of the bolt rod 7 passes through the rubber gasket hole 14 and the first through hole 5, and the lower end of the bolt rod 7 is threadedly connected with a nut 15.

[0020] A second sealing groove 16 is provided on the lower surface of the first flange 3, which mates with the second sealing gasket 13. A mounting groove 17 is provided on the lower surface of the second sealing gasket 13, which mates with the second flange 4. First, the second sealing gasket 13 is put onto the second flange 4, and then the second sealing gasket 13 is inserted into the second sealing groove 16. The second sealing gasket 13 is provided to further prevent corrosion and rust on the pump and valve castings.

[0021] Each of the multiple second through-holes 6 has a third sealing groove 18 at its lower end. The upper portion of the nut 15 has a circular cross-section that matches the third sealing groove 18, while the lower portion of the nut 15 has a regular hexagonal cross-section, making it easier to tighten with a wrench. A third sealing gasket 19 is installed on the inner wall of each of the multiple third sealing grooves 18. This third sealing gasket 19 prevents external moisture and water from entering the second through-holes 6 and corroding the pump and valve castings, causing rust.

[0022] A first positioning groove 20 is formed in an annular manner on the inner wall of each of the plurality of third sealing grooves 18. A first positioning block 21 is formed in an annular manner on the upper surface of each of the plurality of third sealing rubber pads 19. The upper end of the first positioning block 21 extends into the first positioning groove 20. The cooperation between the first positioning block 21 and the first positioning groove 20 prevents the third sealing rubber pads 19 from shifting during installation.

[0023] A plurality of handles 22 are evenly arranged on the upper surface of the bolt cap 8. The handles 22 facilitate pressing the bolt cap 8.

[0024] The lower inner walls of the two first sealing grooves 10 are each provided with a second positioning groove 23 in an annular shape, and the lower surfaces of the two first sealing gaskets 11 are each provided with a second positioning block 24 in an annular shape, with the lower end of the second positioning block 24 extending into the second positioning groove 23. The cooperation between the second positioning block 24 and the second positioning groove 23 prevents the first sealing gaskets 11 from shifting during installation.

[0025] Working principle: first, place the second sealing gasket 13 into the second sealing groove 16, then place the first sealing gasket 11 into the first sealing groove 10, and then place the third sealing gasket 19 into the third sealing groove 18, and then pass the bolt rod 7 through the first through hole 5, the gasket hole 14 and the second through hole 6 in sequence, and then thread the nut 15 to the bolt rod 7, and extend the bolt edge 9 into the first sealing groove 10 through the provided bolt edge 9, so that the bolt edge 9 is pressed on the first sealing gasket 11, which prevents external moisture and water from entering the first through hole 5 and corroding the pump valve casting, causing the pump valve casting to rust; when the bolt rod 7 is connected to the nut 15, the compression force of the provided spring 12 causes the nut 15 to be firmly pressed against the second flange 4, preventing external moisture and water from entering the second through hole 6 and corroding the pump valve casting, causing the pump valve casting to rust.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rust-proof and corrosion-resistant stainless steel pump valve casting, comprising a pump valve casting body (1) and a matching connecting pipe (2), characterized in that: The pump valve casting body (1) is provided with a first flange (3) at the lower end, and the connecting pipe (2) is provided with a second flange (4) at the upper end. The surface of the first flange (3) is evenly provided with a plurality of first through holes (5), and the surface of the second flange (4) is evenly provided with a plurality of second through holes (6). The plurality of second through holes (6) correspond to the first through holes (5) one by one. The plurality of first through holes (5) are provided with bolt rods (7) inside. The plurality of bolt rods (7) are provided with bolt caps (8) in an annular shape at the upper ends of the plurality of bolt rods (7). The side surfaces and side inner walls of the bolt caps (8) are provided with bolt edges (9). The upper surface of the first flange (3) and the bolt edge (9) are provided with two first sealing grooves (10) one by one. The bolt edge (9) and The first sealing groove (10) is matched, and the lower inner walls of the two first sealing grooves (10) are each provided with a first sealing rubber gasket (11), and the outer sides of the plurality of bolt rods (7) are sleeved with a spring (12), the lower end of the spring (12) is connected to the upper surface of the first flange (3), and the upper end of the spring (12) is connected to the lower surface of the bolt cap (8), and a second sealing rubber gasket (13) is provided between the first flange (3) and the second flange (4), and a plurality of rubber gasket holes (14) are provided on the surface of the second sealing rubber gasket (13) in one-to-one correspondence with the first through hole (5), the lower end of the bolt rod (7) passes through the rubber gasket hole (14) and the first through hole (5), and the lower end of the bolt rod (7) is threadedly connected with a nut (15).

2. The rust-proof and corrosion-resistant stainless steel pump valve casting according to claim 1, characterized in that: A second sealing groove (16) is provided on the lower surface of the first flange (3), and the second sealing groove (16) matches the second sealing pad (13). A mounting groove (17) is provided on the lower surface of the second sealing pad (13), and the mounting groove (17) matches the second flange (4).

3. The rust-proof and corrosion-resistant stainless steel pump valve casting according to claim 1, characterized in that: A third sealing groove (18) is provided at the lower end of each of the plurality of second through holes (6), and a third sealing rubber pad (19) is provided on the upper inner wall of each of the plurality of third sealing grooves (18).

4. The rust-proof and corrosion-resistant stainless steel pump valve casting according to claim 3, characterized in that: The inner walls of the plurality of third sealing grooves (18) are each provided with a first positioning groove (20) in an annular shape, and the upper surfaces of the plurality of third sealing rubber pads (19) are each provided with a first positioning block (21) in an annular shape, wherein the upper end of the first positioning block (21) extends into the first positioning groove (20).

5. The rust-proof and corrosion-resistant stainless steel pump valve casting according to claim 1, characterized in that: A plurality of handles (22) are evenly arranged on the upper surface of the bolt cap (8).

6. The rust-proof and corrosion-resistant stainless steel pump valve casting according to claim 1, characterized in that: The lower inner walls of the two first sealing grooves (10) are both provided with a second positioning groove (23) in an annular shape, and the lower surfaces of the two first sealing rubber pads (11) are both provided with a second positioning block (24) in an annular shape, and the lower end of the second positioning block (24) extends into the second positioning groove (23).

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