Anti-corrosion low-temperature valve casting

Abstract

The utility model relates to the technical field of valves, and discloses an anti-corrosion low-temperature valve casting which comprises a through hole, flanges are fixedly connected to the left side and the right side of the through hole, a shell is connected to the peripheries of the flanges in a sliding mode, a pressing rod is connected to the interior of the shell in a sliding mode, and a limiting rod is connected to the bottom of the pressing rod in a sliding mode. A spring is fixedly connected to the outer wall of the limiting rod, a clamping groove is independently formed in the outer wall of the pressing rod, a clamping block is connected to the interior of the clamping groove in a clamped mode, a supporting leg is fixedly connected to the top of the clamping block, a thread is formed in the top of the outer wall of the shell, and a rotating ring is in threaded connection to the outer wall of the thread. And the middle part of the outer wall of the carrying handle is fixedly connected with an anti-skid sleeve. According to the utility model, the shell, the pressing rod, the supporting legs and the springs are matched with one another, so that quick fixing or dismounting is realized, the time is saved, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially relates to a kind of anticorrosive cryogenic valve castings. BACKGROUND

[0002] Valve casting is the key control component in pipeline fluid conveying system, and the dimensional accuracy of valve casting directly affects the assembly and performance of valve, and high-precision size can ensure the sealing performance, operating flexibility and accuracy of fluid control of valve, so the mold precision and casting process parameters need to be strictly controlled during casting process to ensure that the casting size meets the design requirements, and the casting should be dense, without shrinkage, shrinkage and crack defects, to ensure the strength and pressure-bearing capacity of valve, which can be detected by non-destructive testing method, radiographic testing and ultrasonic testing to detect the internal quality of casting, to ensure that it meets relevant standards and use requirements, and valve casting plays an important role in many fields, and the continuous improvement of its quality and performance plays a key role in ensuring the safe and efficient operation of fluid conveying system in various industries.

[0003] The valve casting existing in the market at present is mainly composed of valve body, valve cover, valve core and valve stem, and when in use, the flow channel connected with pipeline is arranged in the valve body, the gate plate is located in the flow channel and can move up and down in the direction perpendicular to the fluid flow direction, the valve stem is connected with the gate plate and is used to transmit operating force to drive the gate plate to move, but the corrosion resistance in use process leads to the corrosion of casting surface, rust and etch pit appear, which affects the appearance, and also makes the sealing performance of valve worse and the structural strength lower, and serious leakage safety accidents can be caused, in order to solve the above problems, the existing technology only selects material with sufficient corrosion resistance according to the specific use environment of valve casting, including the corrosion strength of medium, temperature and humidity factors, but does not innovate the rotating mode of valve core of valve casting, the valve core is difficult to rotate, thereby reducing working efficiency, and cannot meet the use requirement. CONTENT OF UTILITY MODEL

[0004] In order to make up for the above shortcomings, the utility model provides a kind of anticorrosive cryogenic valve castings, to improve the problems of valve core difficult to rotate in prior art, thereby reducing working efficiency, and cannot meet the use requirement.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: an anticorrosive low temperature valve casting, including through -hole, the left and right sides of through -hole are all fixedly connected with flange, the periphery slidingly connected with shell of flange, the inside slidingly connected with press bar of shell, the bottom slidingly connected with limiting rod of press bar, the outer wall fixedly connected with spring of limiting rod, the outer wall of press bar is set up with the clamping groove, the inside clamping connection with clamping block of clamping groove, the top fixedly connected with support leg of clamping block, the outer wall top of shell is set up with threaded silk, the outer wall screw thread connection with rotating ring of threaded silk, the top of through -hole is provided with adjusting structure, and the adjusting structure is used for the control of flow.

[0006] As a further description of the above technical solution:

[0007] The adjusting structure includes a rotating block, a rotating rod is fixedly connected to the left side of the rotating block, a support block is rotatably connected to the outer wall of the rotating rod, a conical gear one is fixedly connected to the outer wall of the rotating rod on the left side, a conical gear two is meshedly connected to the bottom of the conical gear one, a transmission rod is fixedly connected to the middle part of the conical gear two, a connecting table is rotatably connected to the outer wall of the transmission rod, a valve core is fixedly connected to the bottom of the outer wall of the transmission rod, and the outer wall of the valve core is rotatably connected to the inner wall of the through hole.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the rotating ring is fixedly connected with a rotating strip, and the outer wall of the rotating strip is fixedly connected with an anti-skid pad.

[0010] As a further description of the above technical solution:

[0011] The top of the support leg is fixedly connected with an anti-skid block, and the bottom of the rotating ring is fixedly connected with a gasket.

[0012] As a further description of the above technical solution:

[0013] The front left side of the through hole is fixedly connected with a nameplate, and the periphery of the flange is provided with a mounting hole.

[0014] As a further description of the above technical solution:

[0015] The front right side of the through hole is fixedly connected with a moving handle, and the outer wall of the moving handle is fixedly connected with an anti-skid sleeve in the middle part.

[0016] As a further description of the above technical solution:

[0017] The front and back sides of the rotating block are fixedly connected with two connecting rods, and the far side of the connecting rod is fixedly connected with a handle.

[0018] As a further description of the above technical solutions:

[0019] The connecting table is engaged with a fixing screw around, and a protective cover is fixedly connected to the top surface of the connecting table.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1. In the utility model, when in use, the shell is placed into the flange hole, the spring tension lifts the pressing rod, the supporting leg is clamped into the groove and is opened, and the rotating ring is rotated to realize quick fixing.

[0022] 2. In the utility model, when the valve needs to be adjusted, the rotating block drives the rotating rod to rotate, the rotating rod drives the conical gear one to rotate, the conical gear one drives the conical gear two to rotate, the conical gear two drives the transmission rod to rotate, and the transmission rod drives the valve core to rotate, thereby realizing accurate control of the flow through the valve, and avoiding inconvenience in rotation when adjustment is needed and affecting work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A front side perspective view of a through hole of the anti-corrosion low-temperature valve casting is provided for the utility model;

[0024] Figure 2 A rotating block structure diagram of the anti-corrosion low-temperature valve casting is provided for the utility model;

[0025] Figure 3 A shell cross-sectional view of the anti-corrosion low-temperature valve casting is provided for the utility model;

[0026] Figure 4 A moving handle structure diagram of the anti-corrosion low-temperature valve casting is provided for the utility model;

[0027] Figure 5 A protective cover structure diagram of the anti-corrosion low-temperature valve casting is provided for the utility model.

[0028] LEGEND:

[0029] 1, through hole; 2, adjusting structure; 201, rotating block; 202, rotating rod; 203, supporting block; 204, bevel gear one; 205, bevel gear two; 206, transmission rod; 207, connecting table; 208, valve core; 209, connecting rod; 210, handle; 3, flange; 4, shell; 5, pressing rod; 6, clamping groove; 7, clamping block; 8, supporting leg; 9, limiting rod; 10, spring; 11, threaded wire; 12, rotating ring; 13, rotating bar; 14, non-slip pad; 15, gasket; 16, non-slip block; 17, nameplate; 18, moving handle; 19, non-slip sleeve; 20, mounting hole; 21, protective cover; 22, fixing screw. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Please refer to the drawings Figure 1 - the drawings Figure 3 An embodiment provided by the utility model: an anti-corrosion low-temperature valve casting, including through hole 1, both sides of through hole 1 are fixedly connected with flange 3, the periphery of flange 3 is slidably connected with shell 4, so that shell 4 can freely slide around flange 3, the inside of shell 4 is slidably connected with pressing rod 5, the bottom of pressing rod 5 is designed as slidably connected with limiting rod 9, the bottom of pressing rod 5 is slidably connected with limiting rod 9, the outer wall of limiting rod 9 is fixedly connected with spring 10, the function of spring 10 is to provide necessary elastic force for the whole structure, the outer wall of pressing rod 5 is provided with clamping groove 6, the inside of clamping groove 6 is designed as slidably connected with clamping block 7, the inside of clamping groove 6 is slidably connected with clamping block 7, the top of clamping block 7 is fixedly connected with supporting leg 8, the function of supporting leg 8 is to provide additional support and stability for the whole structure, the top of the outer wall of shell 4 is provided with threaded wire 11, the outer wall of threaded wire 11 is designed as threadedly connected with rotating ring 12, the outer wall of threaded wire 11 is threadedly connected with rotating ring 12, the top of through hole 1 is provided with adjusting structure 2, adjusting structure 2 is used for controlling flow.

[0032] Please refer to the drawings Figure 2 - the drawings Figure 3, the adjusting structure 2 comprises a rotating block 201, the left side of the rotating block 201 is fixedly connected with a rotating rod 202, the outer wall of the rotating rod 202 is movably connected with a supporting block 203, so as to provide additional stability and support, the outer wall of the left side of the rotating rod 202 is fixedly connected with a bevel gear one 204, the bottom of the bevel gear one 204 is movably connected with another bevel gear two 205, so as to form a gear transmission mechanism, the bottom of the bevel gear one 204 is movably connected with the bevel gear two 205, the middle of the bevel gear two 205 is fixedly connected with a transmission rod 206, the outer wall of the transmission rod 206 is movably connected with a connecting table 207, so that the transmission rod 206 can work flexibly with other components, the outer wall of the bottom of the transmission rod 206 is fixedly connected with a valve core 208, the outer wall of the valve core 208 is movably connected with the inner wall of the through hole 1, so as to ensure that the valve core 208 can rotate smoothly in the through hole 1, thereby realizing the function of controlling the fluid flow.

[0033] Please refer to the attached drawings Figure 3 - the attached drawings Figure 4 , the outer wall of the rotating ring 12 is fixedly connected with a rotating strip 13, the outer wall of the rotating strip 13 is fixedly connected with a non-slip pad 14, so as to ensure that sufficient friction is provided during use to prevent sliding, the front left side of the through hole 1 is fixedly connected with a nameplate 17, the nameplate 17 can mark product information, usage instructions or important information of the manufacturer's logo, the flange 3 is provided with mounting holes 20 around the periphery, the mounting holes 20 are used to fix the equipment in place, the front right side of the through hole 1 is fixedly connected with a moving handle 18, which facilitates the user to operate when moving the equipment, the outer wall of the middle of the moving handle 18 is fixedly connected with a non-slip sleeve 19, which further improves the safety and comfort of the user when moving.

[0034] Please refer to the attached drawings Figure 3 - the attached drawings Figure 5 , the top of the supporting leg 8 is fixedly connected with a non-slip block 16, which can effectively prevent the supporting leg 8 from sliding during use, thereby ensuring the stability and safety of the equipment, the bottom of the rotating ring 12 is fixedly connected with a gasket 15, the presence of the gasket 15 can effectively protect the rotating ring 12 from wear and tear, prolonging the service life of the rotating ring 12, the front and back sides of the rotating block 201 are fixedly connected with two connecting rods 209, the presence of the two connecting rods 209 enables the rotating block 201 to rotate flexibly, improving the use efficiency of the equipment, the far side of the connecting rod 209 is fixedly connected with a handle 210, the design of the handle 210 enables the user to operate the equipment more conveniently, improving the user's experience, the periphery of the connecting table 207 is movably connected with a fixing screw 22, which can effectively fix the connecting table 207, ensuring the stability and safety of the equipment, the top surface of the connecting table 207 is fixedly connected with a protective cover 21, which plays a certain protective role.

[0035] Working principle: when using, when the valve needs to be connected, the shell 4 is placed in the mounting hole 20 around the flange 3, the pressing rod 5 is lifted up by the tension of the spring 10, the clamping block 7 at the bottom of the supporting leg 8 is clamped in the clamping groove 6, the supporting leg 8 is opened by being lifted up, the rotating ring 12 is rotated on the threaded wire 11, thereby playing the role of quick fixing, at the same time, when disassembling, the rotating ring 12 is rotated in the opposite direction, and the pressing rod 5 is pressed down, so that the spring 10 is contracted, the supporting leg 8 is combined into the shell 4, the quick disassembly is realized, time is saved, and work efficiency is improved;

[0036] When using, when the valve needs to be adjusted, the rotating block 201 drives the rotating rod 202 to rotate, the rotating rod 202 drives the conical gear one 204 to rotate, the conical gear one 204 drives the conical gear two 205 to rotate, the conical gear two 205 drives the transmission rod 206 to rotate, and the transmission rod 206 drives the valve core 208 to rotate, thereby realizing accurate control on the flow passing through the valve, and avoiding inconvenience in rotation when adjustment is needed and affecting work efficiency.

[0037] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. An anticorrosion cryogenic valve casting comprising a through hole (1), characterized in that: The both sides of the through hole (1) are fixedly connected with flanges (3), the periphery of the flange (3) is slidably connected with an outer shell (4), the inside of the outer shell (4) is slidably connected with a pressing rod (5), the bottom of the pressing rod (5) is slidably connected with a limiting rod (9), the outer wall of the limiting rod (9) is fixedly connected with a spring (10), the outer wall of the pressing rod (5) is slidably connected with a clamping groove (6), the inside of the clamping groove (6) is clampedly connected with a clamping block (7), the top of the clamping block (7) is fixedly connected with a supporting leg (8), the top of the outer wall of the outer shell (4) is provided with a threaded wire (11), the outer wall of the threaded wire (11) is threadedly connected with a rotating ring (12), the top of the through hole (1) is provided with an adjusting structure (2), and the adjusting structure (2) is used for controlling the flow.

2. An erosion resistant cryogenic valve casting according to claim 1, wherein: The adjusting structure (2) comprises a rotating block (201), the left side of the rotating block (201) is fixedly connected with a rotating rod (202), the outer wall of the rotating rod (202) is rotatably connected with a supporting block (203), the outer wall of the rotating rod (202) is fixedly connected with a bevel gear one (204) on the left side, the bottom of the bevel gear one (204) is meshedly connected with a bevel gear two (205), the middle of the bevel gear two (205) is fixedly connected with a transmission rod (206), the outer wall of the transmission rod (206) is rotatably connected with a connecting table (207), the outer wall of the bottom of the transmission rod (206) is fixedly connected with a valve core (208), and the outer wall of the valve core (208) is rotatably connected with the inner wall of the through hole (1).

3. The corrosion resistant cryogenic valve casting of claim 1, wherein: The outer wall of the rotating ring (12) is fixedly connected with a rotating strip (13), and the outer wall of the rotating strip (13) is fixedly connected with a non-slip pad (14).

4. The corrosion resistant cryogenic valve casting of claim 1, wherein: The top of the supporting leg (8) is fixedly connected with a non-slip block (16), and the bottom of the rotating ring (12) is fixedly connected with a gasket (15).

5. The corrosion resistant cryogenic valve casting of claim 1, wherein: The front left side of the through hole (1) is fixedly connected with a nameplate (17), and the periphery of the flange (3) is provided with a mounting hole (20).

6. The corrosion resistant cryogenic valve casting of claim 1, wherein: The front right side of the through hole (1) is fixedly connected with a moving handle (18), and the outer wall of the middle of the moving handle (18) is fixedly connected with a non-slip sleeve (19).

7. The corrosion resistant cryogenic valve casting of claim 2, wherein: The front and back sides of the rotating block (201) are fixedly connected with two connecting rods (209), and the far side of the connecting rod (209) is fixedly connected with a handle (210).

8. The corrosion resistant cryogenic valve casting of claim 2, wherein: The periphery of the connecting table (207) is meshedly connected with a fixed screw (22), and the top surface of the connecting table (207) is fixedly connected with a protective cover (21).

Images