Corrugated pipe stop valve resistant to abrasion and long in service life

Abstract

The utility model provides an abrasion-resistant long-service-life corrugated pipe stop valve which comprises a lower valve body, an upper valve body is arranged on the top of the lower valve body, a connecting disc is arranged on the top of the upper valve body, and a screw rod is arranged on the outer side of the connecting disc. According to the abrasion-resistant and long-service-life corrugated pipe stop valve, the corrugated pipe drives the limiting rod to move in the limiting groove when stretching out and drawing back, the stability of the corrugated pipe is improved, the situation that the corrugated pipe is damaged due to contact friction between the corrugated pipe and the valve rod and the inner wall of the valve body is avoided, and the corrugated pipe drives the first fixing disc on the upper portion to move when stretching out and drawing back; the first fixing disc drives the limiting rod to move in the limiting groove, the stability of the corrugated pipe is improved, the corrugated pipe compresses the scissor telescopic frame when stretching out and drawing back, the stability of the first fixing disc is improved through the scissor telescopic frame, and therefore the stability of the corrugated pipe is improved, and the situation that the corrugated pipe is abraded due to contact with the inner wall of the valve rod and the inner wall of the valve body when stretching out and drawing back can be effectively avoided; therefore, the service life of the valve body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of bellows stop valve technology, and in particular to a wear-resistant and long-life bellows stop valve. Background Technology

[0002] A bellows gate valve is a control component used to cut off, distribute, and change the flow pattern of media. It adopts a bellows design, so the valve stem does not need to be in direct contact with the media. As long as the bellows is not damaged, zero leakage can be guaranteed in the valve stem section. The valve stem is raised and lowered by external force, and the position can be visually observed with the help of a scale. The valve core has a relatively reliable sealing performance and is suitable for media of various temperatures.

[0003] The patent document with announcement number "CN214617877U" discloses that the lead screw can quickly descend by rotating inside the threaded cylinder. The lead screw then drives the valve plate at the bottom to descend through the push rod. After the baffle at the bottom of the valve plate descends into the through groove, the sealing ring on the outside of the baffle fits with the sealing gasket to ensure the through groove is sealed, thereby closing the inside of the valve body and preventing the sealing ring from directly contacting and rubbing against the water-blocking plate, which can greatly reduce the wear rate of the sealing ring.

[0004] However, the bellows in the above-mentioned device does not have a limiting mechanism. The bellows is in long-term contact with the valve stem and the inner wall of the valve body, which causes wear and shortens the service life of the valve body. Therefore, it is necessary to provide a wear-resistant and long-life bellows gate valve to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a wear-resistant and long-life bellows shut-off valve.

[0006] The wear-resistant and long-life bellows gate valve provided by this utility model includes a lower valve body, an upper valve body at the top of the lower valve body, a connecting plate at the top of the upper valve body, a screw on the outer side of the connecting plate, a support member on the outer side of the screw, a bellows at the bottom of the screw, a valve stem on the outer side of the bellows, a fixing plate on the outer side of the bellows, a limit rod on the outer side of the fixing plate, and a limit groove inside the upper valve body.

[0007] As a bellows stop valve with wear resistance and long service life provided by this utility model, preferably, the support component includes a support frame fixedly installed on the outside of the connecting plate, a fixing plate is provided on the outside of the support frame, a second fixing plate is provided on the outside of the screw, a support rod is provided on the outside of the second fixing plate, and a groove is provided inside the support rod.

[0008] As a bellows stop valve with wear resistance and long service life provided by this utility model, preferably, a handwheel is fixedly connected to the top of the screw.

[0009] Preferably, the fixed disc one is provided with two and is symmetrically installed on the outer side of the corrugated pipe.

[0010] Preferably, the fixed disc one is provided with two and is symmetrically installed on the outer side of the corrugated pipe.

[0011] Preferably, the fixed disc one is provided with two and is symmetrically installed on the outer side of the corrugated pipe.

[0012] Preferably, the fixed disc one is provided with two and is symmetrically installed on the outer side of the corrugated pipe.

[0013] Compared with the prior art, the corrugated pipe stop valve with high service life and wear resistance has the beneficial effects that:

[0014] The corrugated pipe stop valve with high service life and wear resistance improves the stability of the corrugated pipe by moving the limiting rod in the limiting groove when the corrugated pipe is stretched or contracted, avoids damage of the corrugated pipe caused by contact and friction with the inner wall of the valve stem and the valve body, improves the stability of the corrugated pipe by moving the upper fixed disc when the corrugated pipe is stretched or contracted, improves the stability of the fixed disc by compressing the scissors expansion frame when the corrugated pipe is stretched or contracted, thereby improving the stability of the corrugated pipe, effectively avoids wear of the corrugated pipe caused by contact with the inner wall of the valve stem and the valve body when the corrugated pipe is stretched or contracted, and thereby improves the service life of the valve body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure diagram of a preferred embodiment of the corrugated pipe stop valve with high service life and wear resistance provided by the utility model;

[0016] Figure 2 The structure diagram of the support frame of the utility model;

[0017] Figure 3 The structure diagram of the support frame of the utility model;

[0018] Figure 4 The structure diagram of the support frame of the utility model;

[0019] Figure 5 The structure diagram of the support frame of the utility model;

[0020] The figure mark: 1, lower valve body; 2, upper valve body; 3, connecting disc; 4, screw rod; 5, hand wheel; 6, support; 601, support frame; 602, fixed plate; 603, fixed disc two; 604, support rod; 605, groove; 7, scissor telescopic frame; 8, valve rod; 9, bellows; 10, limiting groove; 11, fixed disc one; 12, limiting rod. DETAILED DESCRIPTION

[0021] The utility model will be further explained below in connection with the drawings and embodiments.

[0022] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 And Figure 5 Among them Figure 1 It is the structure schematic drawing of a preferred embodiment of the wear-resistant long-life bellows stop valve provided by the utility model; Figure 2 It is the structure schematic drawing of the support frame of the utility model; Figure 3 It is the structure schematic drawing of the support of the utility model; Figure 4 It is the structure schematic drawing of the inside of the lower valve body of the utility model; Figure 5 It is the structure schematic drawing of the fixed disc of the utility model. A wear-resistant long-life bellows stop valve, comprising lower valve body 1, the top of lower valve body 1 is provided with upper valve body 2, upper valve body 2 is welded on the top of lower valve body 1, the top of upper valve body 2 is provided with connecting disc 3, connecting disc 3 is fixedly installed on lower valve body 1 by bolt, the outer side of connecting disc 3 is provided with screw rod 4, screw rod 4 is screw-mounted in connecting disc 3, the outer side of screw rod 4 is provided with support 6, the stability of screw rod 4 is improved by setting support 6;The bottom of screw rod 4 is provided with bellows 9, the outer side of bellows 9 is provided with valve rod 8, the outer side of bellows 9 is provided with fixed disc one 11, the outer side of fixed disc one 11 is provided with limiting rod 12, the inside of upper valve body 2 is provided with limiting groove 10.

[0023] In the embodiment: the bellows 9 is driven to stretch and retract by the screw rod 4, the screw rod 4 is supported and stabilized by the support 6, the stability of the screw rod 4 when moving is improved, so that the stability when the bellows 9 is compressed is improved, the limiting rod 12 is driven to move in the limiting groove 10 when the bellows 9 stretches and retracts, the stability of the bellows 9 is improved, and the bellows 9 is prevented from being damaged by contact and friction with the valve rod 8 and the inner wall of the valve body.

[0024] As a technical optimization scheme of the utility model, the support piece 6 includes the support frame 601 fixedly installed outside the connecting disc 3, the support frame 601 is welded at the top of the connecting disc 3, the outside of the support frame 601 is provided with the fixed plate 602, the fixed plate 602 is welded at the inside of the support frame 601, the outside of the screw rod 4 is provided with the fixed disc two 603, the fixed disc two 603 is rotatably installed outside the screw rod 4, the outside of the fixed disc two 603 is provided with the support rod 604, the support rod 604 is welded at both sides of the fixed disc two 603, the inside of the support rod 604 is provided with the recess 605, and the recess 605 is formed in the support rod 604.

[0025] In the embodiment, when the screw rod 4 moves downward, the fixed disc two 603 and the support rod 604 move downward, the recess 605 of the support rod 604 slides outside the fixed plate 602, the stability of the screw rod 4 when moving downward is improved, and the stability of the corrugated pipe 9 is not affected by shaking of the screw rod 4 when moving downward.

[0026] As a technical optimization scheme of the utility model, the top of the screw rod 4 is fixedly connected with the hand wheel 5.

[0027] In the embodiment, the hand wheel 5 is fixedly installed at the top of the screw rod 4 through bolts, and the screw rod 4 is conveniently rotated.

[0028] As a technical optimization scheme of the utility model, the fixed disc one 11 is provided with two and symmetrically installed outside the corrugated pipe 9, and the fixed disc one 11 is welded on the corrugated pipe 9.

[0029] In the embodiment, the stability of the corrugated pipe 9 when stretching and contracting is improved by the fixed disc one 11.

[0030] As a technical optimization scheme of the utility model, the two sides of the fixed disc one 11 are symmetrically welded with the limiting rod 12, and the limiting rod 12 moves in the limiting groove 10.

[0031] In the embodiment, the limiting rod 12 moves in the limiting groove 10 when the corrugated pipe 9 stretches and contracts, and the stability of the corrugated pipe 9 is improved.

[0032] As a technical optimization scheme of the utility model, the scissor stretching and contracting frame 7 is arranged between the two fixed disc ones 11, and the scissor stretching and contracting frame 7 is rotatably installed between the two fixed disc ones 11.

[0033] In the embodiment, the scissor stretching and contracting frame 7 is compressed when the corrugated pipe 9 stretches and contracts, the stability of the fixed disc one 11 is improved by the scissor stretching and contracting frame 7, and the stability of the corrugated pipe 9 is improved.

[0034] As a technical optimization scheme of the utility model, the connecting disc 3 is connected through the water stop bolt.

[0035] In the embodiment, the water stop bolt is used to avoid leakage of the joint of the connecting plate 3.

[0036] The working principle of the corrugated pipe stop valve with high wear resistance and long service life is as follows:

[0037] The screw rod 4 drives the corrugated pipe 9 to stretch and retract, the support member 6 supports and stabilizes the screw rod 4, the stability of the screw rod 4 during movement is improved, the stability of the corrugated pipe 9 during compression is improved, the limiting rod 12 is driven to move in the limiting groove 10 during stretching and retracting of the corrugated pipe 9, the stability of the corrugated pipe 9 is improved, the corrugated pipe 9 is prevented from being damaged due to contact and friction with the inner wall of the valve stem 8 and the valve body, the upper fixing disc I 11 is driven to move during stretching and retracting of the corrugated pipe 9, the limiting rod 12 is driven to move in the limiting groove 10, the stability of the corrugated pipe 9 is improved, the shears telescopic frame 7 is compressed during stretching and retracting of the corrugated pipe 9, the stability of the fixing disc I 11 is improved by the shears telescopic frame 7, the stability of the corrugated pipe 9 is improved, the corrugated pipe 9 can be effectively prevented from being worn due to contact with the inner wall of the valve stem 8 and the valve body during stretching and retracting, and the service life of the valve body is improved.

[0038] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion by using the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A wear-resistant, long-life bellows gate valve, characterized in that, The device includes a lower valve body (1), an upper valve body (2) is provided on the top of the lower valve body (1), a connecting plate (3) is provided on the top of the upper valve body (2), a screw (4) is provided on the outside of the connecting plate (3), a support member (6) is provided on the outside of the screw (4), a bellows (9) is provided at the bottom of the screw (4), a valve stem (8) is provided on the outside of the bellows (9), a fixing plate (11) is provided on the outside of the bellows (9), a limit rod (12) is provided on the outside of the fixing plate (11), and a limit groove (10) is provided inside the upper valve body (2).

2. The wear-resistant, long-life bellows stop valve according to claim 1, characterized in that, The support member (6) includes a support frame (601) fixedly installed on the outside of the connecting plate (3). A fixing plate (602) is provided on the outside of the support frame (601). A fixing plate (603) is provided on the outside of the screw (4). A support rod (604) is provided on the outside of the fixing plate (603). A groove (605) is provided inside the support rod (604).

3. The wear-resistant, long-life bellows stop valve according to claim 1, characterized in that, A handwheel (5) is fixedly connected to the top of the screw (4).

4. The wear-resistant, long-life bellows stop valve according to claim 1, characterized in that, Two fixed disks (11) are provided and installed symmetrically on the outside of the corrugated pipe (9).

5. The wear-resistant, long-life bellows stop valve according to claim 1, characterized in that, Limiting rods (12) are symmetrically welded on both sides of the fixed disk (11), and the limiting rods (12) move in the limiting groove (10).

6. The wear-resistant, long-life bellows stop valve according to claim 1, characterized in that, A scissor telescopic frame (7) is provided between the two fixed disks (11).

7. The wear-resistant, long-life bellows stop valve according to claim 1, characterized in that, The connecting plate (3) is connected by a water-stop bolt.

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