Precipitation hardening stainless steel high-pressure valve

Abstract

The utility model relates to the technical field of valve clacks, in particular to a precipitation hardening stainless steel high-pressure valve which comprises a valve body, a valve rod, a valve clack, a connecting assembly and a shell, the valve rod is arranged in the valve body, and the valve clack is arranged at the end of the valve rod. A lantern ring is moved upwards, the lantern ring drives a sliding block to move along a sliding rod, the sliding block drives a spring to be compressed, so that a first limiting block and a second limiting block are separated, then the lantern ring is rotated, the lantern ring drives a connecting sleeve to rotate through the sliding block, the connecting sleeve moves upwards along shell threads on the two sides, and the connecting sleeve moves upwards along a valve rod; then, a new shell is arranged outside the valve clack, the connecting sleeve is rotated to be in threaded connection with the outer wall of the shell, and the first limiting block and the second limiting block are clamped, so that rotation of the connecting sleeve is limited, and the fixing effect of the shell is improved; the problem that a traditional precipitation hardening stainless steel high-pressure valve clack is high in replacement cost is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of valve clack, concretely to a high pressure valve of sedimentation hardening stainless steel. BACKGROUND

[0002] The valve clack is an important component of the stop valve, and the existing high pressure valve clack of sedimentation hardening stainless steel is prone to corrosion after long-term use, thereby affecting the sealing performance of the stop valve, so the valve clack needs to be replaced. The existing high pressure valve clack of sedimentation hardening stainless steel is usually of an integral structure, so that the machining cost of the high pressure valve clack of sedimentation hardening stainless steel is high, and the maintenance cost of the stop valve is high. SUMMARY

[0003] The utility model aims at solving the problems in the prior art, and provides a high pressure valve of sedimentation hardening stainless steel.

[0004] To achieve the above object, the utility model provides the following technical scheme.

[0005] The utility model discloses a high pressure valve of sedimentation hardening stainless steel, which comprises a valve body, a valve rod, a valve clack, a connecting assembly and a shell.

[0006] The inner wall of the connecting sleeve is threadedly connected with the shells on the two sides, the outer wall of the connecting sleeve is sleeved with a sleeve ring, the inner ring surface of the sleeve ring is provided with a plurality of sliding blocks, the inner wall of the sliding rod is slidably connected with the sliding rod, the two ends of the sliding rod are fixedly connected with the connecting sleeve, the two ends of the spring are fixedly connected with the connecting sleeve and the sliding block respectively, and the spring is sleeved on the outer wall of the sliding rod.

[0007] Preferably, the lower end of the sleeve ring is angularly and annularly provided with a plurality of first limiting blocks.

[0008] Preferably, the upper end of the shell is angularly and annularly provided with a second limiting block, the inner ends of the two shells are abutted, and the plurality of limiting blocks are clamped with the second limiting blocks on the two sides.

[0009] Preferably, the shells on the two sides can be sealed with the valve body, and the side, away from the connecting assembly, of the shells on the two sides is provided with a sealing ring structure for sealing the valve body.

[0010] Preferably, the upper end of the connecting sleeve is sleeved with the valve rod.

[0011] The utility model provides a kind of sediment hardened stainless steel high-pressure valve, beneficial effect lies in: by moving sleeve ring upwards, sleeve ring drives slider to move along slide rod, slider drives spring compression, so that first limit block and second limit block are separated, subsequently rotate sleeve ring, sleeve ring is rotated by slider and drives connecting sleeve, so that connecting sleeve moves upwards along the shell screw thread of two sides, so that connecting sleeve moves upwards along valve stem, to separate the shell of two sides, subsequently new shell is arranged at the outside of valve clack, subsequently rotate connecting sleeve and the outer wall screw connection of shell, and by first limit block and second limit block are connected, so that the rotation of connecting sleeve is limited, the fixed effect of shell is improved, the problem of traditional sediment hardened stainless steel high-pressure valve clack replacement cost is higher is solved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model;

[0013] Figure 2 It is the sectional structure schematic diagram of the valve stem, valve clack and connecting assembly of the utility model;

[0014] Figure 3 It is the bottom structure schematic diagram of the sleeve ring of the utility model;

[0015] Figure 4 It is the overhead structure schematic diagram of the shell of the utility model.

[0016] In the drawing: 1, valve body;2, valve stem;3, valve clack;4, connecting assembly;401, connecting sleeve;402, sleeve ring;4021, first limit block;403, slider;404, slide rod;405, spring;5, shell;501, second limit block. DETAILED DESCRIPTION

[0017] The utility model is further described below in connection with the drawings:

[0018] Refer to the attached Figures 1-4 : a kind of sediment hardened stainless steel high-pressure valve 3, including valve body 1, valve stem 2, valve clack 3, connecting assembly 4 and shell 5, valve body 1 inside is provided with valve stem 2, the end of valve stem 2 is provided with valve clack 3, the outside of valve clack 3 is provided with two groups of shell 5, the outside of two side shells 5 is provided with connecting assembly 4 above, wherein connecting assembly 4 includes connecting sleeve 401, sleeve ring 402, slider 403, slide rod 404 and spring 405;

[0019] The inner wall of the connecting sleeve 401 is threaded to the outer shells 5 on both sides. A collar 402 is fitted onto the outer wall of the connecting sleeve 401. Multiple sliders 403 are provided on the inner ring surface of the collar 402. The inner wall of the slide rod 404 is slidably connected to the slide rod 404. Both ends of the slide rod 404 are fixedly connected to the connecting sleeve 401. Both ends of the spring 405 are fixedly connected to the connecting sleeve 401 and the sliders 403 respectively. The spring 405 is fitted onto the outer wall of the slide rod 404. When the collar 402 moves upward, the collar 402 drives the sliders 403. 3. Move along the slide bar 404. The slider 403 drives the spring 405 to compress, causing the first limiting block 4021 to separate from the second limiting block 501. Then rotate the collar 402. The collar 402 drives the connecting sleeve 401 to rotate through the slider 403, causing the connecting sleeve 401 to move upward along the outer shell threads on both sides, and causing the connecting sleeve 401 to move upward along the valve stem 2, thereby separating the outer shells 5 on both sides. The outer shell 5 is made of stainless steel with precipitation hardening process. This material has the characteristics of corrosion resistance and high pressure resistance.

[0020] The lower end of the collar 402 is provided with multiple first limiting blocks 4021 arranged in a ring at equal angles, and the upper part of the outer shell 5 is provided with second limiting blocks 501 arranged in a ring at equal angles. The inner ends of the two sets of outer shells 5 are attached to each other, and the multiple limiting blocks are engaged with the second limiting blocks 501 on both sides.

[0021] The two outer shells 5 can seal with the valve body 1. The side of the two outer shells 5 away from the connecting component 4 is provided with a sealing ring structure for sealing the valve body 1. The upper part of the connecting sleeve 401 is sleeved with the valve stem 2.

[0022] Specifically, the outer casing 5 will still be corroded by fluids after long-term use, which will reduce the sealing performance of the valve body. Therefore, the valve disc needs to be replaced regularly. By moving the collar 402 upward, the collar 402 drives the slider 403 to move along the slide rod 404. The slider 403 drives the spring 405 to compress, so that the first limiting block 4021 and the second limiting block 501 are separated. Then, the collar 402 is rotated, and the collar 402 drives the connecting sleeve 401 to rotate through the slider 403. This causes the connecting sleeve 401 to move upward along the outer casing threads on both sides, and then move upward along the valve stem 2, thereby separating the outer casings 5 ​​on both sides. Then, the new outer casing 3 is placed outside the valve disc 3. Then, the connecting sleeve 401 is rotated to connect with the outer wall of the outer casing 5 by thread, and is engaged with the second limiting block 501 through the first limiting block 4021, thereby restricting the rotation of the connecting sleeve 401 and improving the fixing effect of the outer casing 5.

[0023] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A precipitation-hardening stainless steel high-pressure valve, characterized in that: The valve body (1) includes a valve stem (2), a valve disc (3), a connecting assembly (4), and a housing (5). The valve stem (2) is provided inside the valve body (1). The valve disc (3) is provided at the end of the valve stem (2). Two sets of housings (5) are provided on the outside of the valve disc (3). The connecting assembly (4) is provided on the upper outside of the outer sides of the two housings (5). The connecting assembly (4) includes a connecting sleeve (401), a collar (402), a slider (403), a slide rod (404), and a spring (405). The inner wall of the connecting sleeve (401) is threadedly connected to the outer shells (5) on both sides. The outer wall of the connecting sleeve (401) is fitted with a collar (402). The inner ring surface of the collar (402) is provided with multiple sliders (403). The inner wall of the slide rod (404) is slidably connected to the slide rod (404). Both ends of the slide rod (404) are fixedly connected to the connecting sleeve (401). Both ends of the spring (405) are fixedly connected to the connecting sleeve (401) and the sliders (403) respectively. The spring (405) is fitted on the outer wall of the slide rod (404).

2. The precipitation-hardening stainless steel high-pressure valve according to claim 1, characterized in that: The lower end of the collar (402) has multiple first limiting blocks (4021) distributed in a ring at equal angles.

3. The precipitation-hardening stainless steel high-pressure valve according to claim 1, characterized in that: The outer shell (5) is provided with a second limiting block (501) at an equal angle on the upper part of the outer shell (5), the inner ends of the two sets of outer shells (5) are attached to each other, and the multiple limiting blocks are engaged with the second limiting blocks (501) on both sides.

4. The precipitation-hardening stainless steel high-pressure valve according to claim 1, characterized in that: The outer shells (5) on both sides can seal with the valve body (1). A sealing ring structure is provided on the side of the outer shells (5) away from the connecting assembly (4) for sealing the valve body (1).

5. A precipitation-hardening stainless steel high-pressure valve according to claim 1, characterized in that: The upper part of the connecting sleeve (401) is sleeved with the valve stem (2).

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