CN211175469U

CN211175469U - Valve convenient to quick maintenance

Info

Publication number: CN211175469U
Application number: CN201922107583.9U
Authority: CN
Inventors: 裘铮浩; 张效禹
Original assignee: Lanxi Beijing Fluid Control Equipment Co ltd
Current assignee: Lanxi Beijing Fluid Control Equipment Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-04
Anticipated expiration: 2029-11-29

Abstract

The utility model relates to the technical field of valve manufacturing, and discloses a valve convenient for quick maintenance, which comprises a ball valve body, wherein the ball valve body comprises a valve body, a valve cover and a valve rod, a replacing component positioned in the valve body is installed at the bottom of the valve rod, and a lower valve groove used for disassembling the replacing component is arranged at the bottom of the valve body; wherein, it includes middle part sleeve, inside sleeve and ball valve to change the subassembly, the telescopic one side in middle part contacts with the inner chamber of valve body, the telescopic inside cover in middle part is established inside sleeve, inside sleeve with the ball valve contacts. This valve convenient to quick maintenance when valve ball disk seat need be changed, only need pull down the installation component and will change the subassembly and take out from the valve body, later take out change the subassembly in inside sleeve and the ball valve change can, need not take out the valve from the pipeline and can change, the change process is simple swift.

Description

Valve convenient to quick maintenance

Technical Field

The utility model relates to a valve manufacturing technical field specifically is a valve convenient to quick maintenance.

Background

The valve is a control device which is installed on a pipeline and used for controlling liquid or gas to flow, the existing spherical valve mainly comprises a valve body, valve seats, a valve ball, a valve rod and a valve cover, the valve ball rotates between the two valve seats in the using process, and a sealing gasket between the valve ball and the valve seats is easily abraded in the past, so that the sealing performance of the valve body is reduced, the leakage phenomenon is easily caused, and at the moment, a worker is required to take out the valve ball and the valve seats to replace the valve ball and the valve seats.

However, it is very difficult for people to take out the valve seat and the valve ball from the valve body directly, because there are two valve seats in the existing ball valve, the one end that two valve seats are far away from each other is in the passageway in the direct embedding valve body, and the ball valve is located between two valve seats, people need utilize special tool to promote two valve seats in the valve body, make two valve seats keep away from each other and take out the valve ball, the valve ball takes out the successor and takes out the valve seat, and, still need to dismantle structures such as valve rod and valve gap before getting valve ball and valve seat, it is very loaded down with trivial details to disassemble the process, make the change process of valve ball and valve seat very troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model provides a valve convenient to quick maintenance, possess the advantage of the quick replacement valve ball and the disk seat of being convenient for, when the valve was installed on the pipeline, people need utilize specialized tool to promote two disk seats in the valve body if want direct taking out disk seat and valve ball from the valve body very difficult, people need utilize two disk seats in the specialized tool, make two disk seats keep away from the diameter that makes between two disk seats each other and be greater than the valve ball and could take out the valve ball, continue to take out the disk seat after the valve ball takes out again, and, still need dismantle valve rod and valve gap isotructure before getting valve ball and disk seat, it is very loaded down with trivial details to disassemble the process, make the problem that the change process of valve ball and disk seat is very troublesome.

The utility model provides a following technical scheme: a valve convenient for quick maintenance comprises a ball valve body, wherein the ball valve body comprises a valve body, a valve cover and a valve rod, a replacing assembly positioned in the valve body is installed at the bottom of the valve rod, and a lower valve groove used for detaching the replacing assembly is formed in the bottom of the valve body; wherein, it includes middle part sleeve, inside sleeve and ball valve to change the subassembly, the telescopic one side in middle part contacts with the inner chamber of valve body, the telescopic inside cover in middle part is established inside sleeve, inside sleeve with the ball valve contacts.

Preferably, the replacement assembly further comprises an outer sleeve, and the middle sleeve is sleeved inside the outer sleeve; the top of the external sleeve is provided with a through hole, and the bottom end of the valve rod penetrates through the through hole to be connected with the top of the ball valve.

Preferably, the middle sleeve is divided into an outer sleeve and an inner ring, one end of the inner cavity of the outer sleeve is fixed with the inner ring, the inner sleeve is divided into a valve seat and an extension cylinder, and the valve seat is fixed with the extension cylinder; the valve seat is sleeved in the inner cavity of the outer cylinder, and the extension cylinder is sleeved in the inner ring; the inner cavity of the outer barrel is provided with a return spring, the extension barrel is sleeved inside the return spring, one end of the return spring is in contact with the side face of the inner ring, and the other end of the return spring is in contact with the valve seat.

Preferably, the side of the outer barrel is provided with a first sealing ring, the first sealing ring is in contact with the inner cavity of the valve body, the outer surface of the outer barrel is provided with a mounting groove, and the mounting groove is matched with the bottom of the outer sleeve.

Preferably, the outer surface of the valve seat is provided with a groove, a second sealing ring is installed in the groove, and the second sealing ring is in contact with the inner cavity of the outer barrel.

Preferably, a mounting assembly is mounted inside the lower valve spool, and the top of the mounting assembly is in contact with the outer sleeve.

Preferably, the mounting assembly comprises a base and a support, and the base is connected with the support; the base is installed at the bottom of the valve body through bolts, and the top of the supporting piece penetrates through the lower valve groove to be in contact with the bottom of the outer sleeve.

Preferably, the support member includes a top tube, a bottom tube and a support spring, the top tube is sleeved inside the bottom tube, the top of the top tube contacts with the groove at the bottom of the external sleeve, one end of the support spring is connected with the top of the inner cavity of the top tube, and the other end of the support spring is connected with the bottom of the inner cavity of the bottom tube.

The utility model discloses possess following beneficial effect:

1. this valve convenient to quick maintenance when valve ball disk seat need be changed, only need pull down the installation component and will change the subassembly and take out from the valve body, later take out change the subassembly in inside sleeve and the ball valve change can, need not take out the valve from the pipeline and can change, the change process is simple swift.

2. This valve convenient to quick maintenance sets up the mounting groove through the surface at the urceolus, set up the perforation in outside telescopic bottom, the change back that finishes, people only need utilize the bolt to pass the mounting groove and perforate, distance between one side can be less than the distance between the outside sleeve left and right sides is kept away from mutually to two middle part sleeves this moment, distance between the outside sleeve left and right sides is less than the distance between the interior chamber left and right sides of valve body, therefore, the staff of being convenient for will change the inside of subassembly installation to the valve body.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the inner chamber channel of the valve body of the present invention

FIG. 3 is a schematic view of the internal structure of the replacement assembly of the present invention;

FIG. 4 is a schematic view of the outer sleeve of the present invention;

fig. 5 is a schematic view of a combined structure of the middle sleeve, the inner sleeve and the return spring of the present invention;

fig. 6 is a schematic structural diagram of the mounting assembly of the present invention.

In the figure: 100-a ball valve body; 101-a valve body; 101 a-lower valve spool; 101 b-a chamber; 101 c-channel; 102-a valve cover; 103-a valve stem; 200-replacing the component; 201-an outer sleeve; 201 a-perforation; 201 b-grooves; 201 c-mounting holes; 202-middle sleeve; 202 a-outer barrel; 202 a-1-first seal ring; 202 a-2-mounting groove; 202 b-inner ring; 203-an inner sleeve; 203 a-valve seat; 203 a-1-second seal ring; 203 b-an extension cylinder; 204-ball valve; 205-a return spring; 300-mounting the assembly; 301-a base; 301 a-third seal ring; 302-a support; 302 a-top cylinder; 302 b-bottom cylinder; 302 c-support spring; 400-bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 to 6, a valve convenient for quick maintenance includes a ball valve body 100, the ball valve body 100 includes a valve body 101, a bonnet 102 and a valve rod 103, the bonnet 102 is installed on the top of the valve body 101, the valve rod 103 is installed inside the bonnet 102, a replacing assembly 200 located inside the valve body 101 is installed on the bottom of the valve rod 103, a lower valve groove 101a is formed on the bottom of the valve body 101, an installing assembly 300 is installed inside the lower valve groove 101a, the replacing assembly 200 is matched with the installing assembly 300, wherein the replacing assembly 200 includes an outer sleeve 201, a middle sleeve 202, an inner sleeve 203, a ball valve 204 and a return spring 205, the middle sleeve 202 is sleeved inside the outer sleeve 201, the inner sleeve 203 is sleeved inside the middle sleeve 202, the return spring 205 is installed between the inner sleeve 203 and the middle sleeve 202, the inner sleeve 203 is matched with the ball valve 204, and the top of the ball valve 204 is connected with the valve rod 103; wherein the bottom of the outer sleeve 201 mates with the mounting assembly 300.

It should be noted that, a cavity 101b for placing the replacement component 200 is opened inside the valve body 101, as shown in fig. 1, a distance between the left and right sides of the cavity 101b is greater than a distance between the left and right sides of the outer sleeve 201, and if the sealing gasket between the valve seat 203a and the valve ball is worn and needs to be replaced, the mounting component 300 is detached from the bottom of the valve body 101 by screwing the bolt 400, and then the replacement component 200 is taken out directly through the lower valve groove 101a at the bottom of the valve body 101, and then the inner sleeve 203 and the valve ball in the replacement component 200 are taken out for replacement.

It should be noted that, as shown in fig. 1, the number of the inner sleeve 203 and the number of the return spring 205 of the middle sleeve 202 are two, and the valve ball is located between the two inner sleeves 203, when the replacement assembly 200 is in operation, the return spring 205 is located between the middle sleeve 202 and the inner sleeve 203, and the return spring 205 is always in a compressed state, so that the return spring 205 presses the inner sleeve 203, one side of the inner sleeve 203 contacts with the valve ball, and simultaneously presses the middle sleeve 202, so that one side of the middle sleeve 202 away from the valve ball contacts with one side of the inner cavity of the valve body 101, when the valve is in use, gas or liquid enters the inside of the valve body 101 through the passage 101c at one end of the valve body 101, and then sequentially passes through the inside of the inner sleeve 203 and the inside of the valve ball to finally reach the passage 101c at the other end of.

The middle sleeve 202 is divided into an outer cylinder 202a and an inner ring 202b, and the inner ring 202b is fixed inside the outer cylinder 202 a; wherein, the inner part of the outer cylinder 202a is sleeved with one end of the inner sleeve 203, and the other end of the outer sleeve 201 is sleeved with the inner part of the inner ring 202 b; the return spring 205 is installed inside the outer cylinder 202a, the return spring 205 is matched with the inner sleeve 203, one end of the return spring 205 is in contact with the side surface of the inner ring 202b, a first sealing ring 202a-1 is arranged on the side surface of the outer cylinder 202a, the first sealing ring 202a-1 is matched with the inner cavity of the valve body 101, an installation groove 202a-2 is formed in the outer surface of the outer cylinder 202a, and the installation groove 202a-2 is matched with the bottom of the outer sleeve 201.

It should be noted that the first sealing ring 202a-1 is used to increase the sealing performance between the outer cylinder 202a and the inner cavity 101b of the valve body 101, so as to prevent gas or liquid in the valve body 101 from overflowing through a gap between the outer cylinder 202a and the inner cavity 101b of the valve body 101 during the use of the valve body 101.

The inner sleeve 203 is divided into a valve seat 203a and an extension cylinder 203b, and the valve seat 203a is fixed with the extension cylinder 203 b; the valve seat 203a is sleeved inside the outer cylinder 202a, and one side of the valve seat 203a is matched with the other end of the return spring 205; the outer surface of the extension tube 203b is sleeved with the return spring 205, one end of the extension tube 203b is sleeved inside the inner ring 202b, the outer surface of the valve seat 203a is provided with a groove, a second sealing ring 203a-1 is installed in the groove, and the second sealing ring 203a-1 is in contact with the inner cavity of the outer tube 202 a.

It should be noted that the second sealing ring 203a-1 is used to increase the sealing performance between the valve seat 203a and the inner cavity of the outer cylinder 202a, and liquid or gas leaks out through the gap between the valve seat 203a and the outer cylinder 202a during operation of the valve.

It should be noted that one end of the return spring 205 is in contact with the inner ring 202b, the other end is in contact with the valve seat 203a, the return spring 205 provides pressure to the inner ring 202b and the valve seat 203a, the valve seat 203a is in contact with the valve ball under the action of the pressure, the inner ring 202b moves away from the valve seat 203a under the action of the pressure, the outer cylinder 202a also moves away from the valve seat 203a because the inner ring 202b is fixed with the outer cylinder 202a, until the first sealing ring 202a-1 on the side of the outer cylinder 202a is in contact with the side of the inner cavity 101b of the valve body 101, and in the process, the inner cavity of the outer cylinder 202a is always in contact with the second sealing ring 203a-1, liquid or gas passes through the channel 101c at one end of the valve body 101, and then passes through the extending cylinder 203b and the valve seat 203a on one side in turn and flows to the inside of the, after passing through the valve ball, the fluid flows out of the valve seat 203a and the extension cylinder 203b on the other side in this order.

It should be noted that, the outer surface of the inner sleeve 203 and the outer surface of the valve ball are both provided with protective layers, the protective layers are hard alloy layers, the hard alloy layers have the advantages of wear resistance, corrosion resistance, high temperature resistance and the like, solid particles in flowing liquid or gas are prevented from scratching a sealing surface, the service life of the valve is prolonged, a notch is arranged at a position where the valve seat 203a contacts with the valve ball, the notch on the valve seat 203a can generate a multilayer sealing effect, the sealing performance is improved, and the leakage probability is reduced.

The top of the outer sleeve 201 is provided with a through hole 201a, the valve rod 103 passes through the through hole 201a to be connected with the valve ball, the bottom of the outer sleeve 201 is provided with a groove 201b, the groove 201b is matched with the top of the mounting assembly 300, the mounting assembly 300 comprises a base 301 and a support 302, and the base 301 is connected with the support 302; the bottom of the valve body 101 is installed on the base 301 through a bolt 400, the top of the supporting piece 302 penetrates through the lower valve groove 101a to be in contact with the groove 201b in the bottom of the outer sleeve 201, the supporting piece 302 comprises a top barrel 302a, a bottom barrel 302b and a supporting spring 302c, the top barrel 302a is sleeved inside the bottom barrel 302b, the top of the top barrel 302a is in contact with the groove 201b in the bottom of the outer sleeve 201, one end of the supporting spring 302c is connected with the top of the inner cavity of the top barrel 302a, and the other end of the supporting spring 302c is connected with the bottom of the inner cavity of the bottom barrel 302 b.

It should be noted that the top barrel 302a can slide inside the bottom barrel 302b, and because one end of the supporting spring 302c is connected to the top of the inner cavity of the top barrel 302a, the other end of the supporting spring 302c is connected to the bottom of the inner cavity of the bottom barrel 302b, and the supporting spring 302c generates upward elastic force to the top barrel 302a, the supporting member 302 forms a telescopic rod-shaped structure, the mounting assembly 300 is mounted at the bottom of the valve body 101 through the bolt 400, at this time, the top of the supporting member 302 contacts with the groove 201b at the bottom of the outer sleeve 201, the supporting member 302 plays a role of supporting the outer sleeve 201, so that the whole replacing assembly 200 is located inside the cavity formed inside the valve body 101, it is ensured that the replacing assembly 200 can work normally, and the supporting member 302 is of the telescopic rod-shaped structure, the telescopic rod can freely adjust its length according to the distance between the base 301 and the, if not adopt this kind of extending structure, the bracing piece produces the phenomenon that machining error leads to the telescopic link overlength or short easily at the in-process of processing to be unfavorable for utilizing the telescopic link to install fixedly to changing subassembly 200, third sealing washer 301a has increased the sealing performance between base 301 and the valve body.

The specific workflow of this embodiment is; when the valve is through-flow, the valve rod 103 is rotated to enable the through hole in the valve ball to be communicated with the left valve seat 203a and the right valve seat 203a, liquid or gas firstly flows through the channel 101c at one end of the valve body 101, then sequentially flows through the extending cylinder 203b and the valve seat 203a at one side and flows into the valve ball, after passing through the valve ball, the liquid or gas sequentially flows out from the valve seat 203a and the extending cylinder 203b at the other side, when the valve stops flow, the valve rod 103 is rotated to enable the valve ball, the channel 101c in the valve ball is forbidden to be communicated with the left valve seat 203a and the right valve seat 203a, if the valve needs to replace the valve ball or the valve seat 203a, the bolt 400 is screwed to detach the mounting assembly 300 from the bottom of the valve body 101, then the replacing assembly 200 is directly taken out through the lower valve groove 101a at the bottom of the valve body 101, then the inner sleeve 203 and the valve ball in the replacing assembly, at this time, the distance between the far sides of the two middle sleeves 202 is smaller than the distance between the left and right sides of the outer sleeve 201, and the distance between the left and right sides of the outer sleeve 201 is smaller than the distance between the left and right sides of the chamber 101b in the valve body 101, so that, when a worker installs the replacement assembly 200 in the chamber 101b in the valve body 101, because one end of the return spring 205 is in contact with the inner ring 202b and the other end is in contact with the valve seat 203a, and the return spring 205 provides pressure to the inner ring 202b and the valve seat 203a, and after the plug is pulled out, the valve seat 203a is in contact with the valve ball under the action of the pressure, and the inner ring 202b moves in the direction far from the valve seat 203a under the action of the pressure, and because the inner ring 202b is fixed to the outer cylinder 202a, the outer cylinder 202a also moves in the direction far from the valve seat 203a until the first sealing ring 202a-, finally, the top of the supporting member 302 is inserted into the lower valve groove 101a and pressed into the groove 201b at the bottom of the outer sleeve 201, and the base 301 is mounted at the bottom of the valve body 101 by using the bolt 400.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A valve convenient to quick maintenance, includes ball valve body (100), ball valve body (100) includes valve body (101), valve gap (102) and valve rod (103), its characterized in that: the bottom of the valve rod (103) is provided with a replacement assembly (200) positioned inside the valve body (101), and the bottom of the valve body (101) is provided with a lower valve groove (101a) for detaching the replacement assembly (200);

the replacement assembly (200) comprises a middle sleeve (202), an inner sleeve (203) and a ball valve (204), one side of the middle sleeve (202) is in contact with an inner cavity of the valve body (101), the inner sleeve (203) is sleeved inside the middle sleeve (202), and the inner sleeve (203) is in contact with the ball valve (204).

2. The valve for facilitating quick service according to claim 1, wherein: the replacement assembly (200) further comprises an outer sleeve (201), and the middle sleeve (202) is sleeved inside the outer sleeve (201);

the top of the outer sleeve (201) is provided with a through hole (201a), and the bottom end of the valve rod (103) penetrates through the through hole (201a) to be connected with the top of the ball valve (204).

3. The valve for facilitating quick service according to claim 2, wherein: the middle sleeve (202) is divided into an outer cylinder (202a) and an inner ring (202b), one end of the inner cavity of the outer cylinder (202a) is fixed with the inner ring (202b), the inner sleeve (203) is divided into a valve seat (203a) and an extension cylinder (203b), and the valve seat (203a) is fixed with the extension cylinder (203 b);

the inner cavity of the outer cylinder (202a) is sleeved with the valve seat (203a), and the extension cylinder (203b) is sleeved inside the inner ring (202 b);

the inner cavity of the outer cylinder (202a) is provided with a return spring (205), the outer side of the extension cylinder (203b) is sleeved with the inner part of the return spring (205), one end of the return spring (205) is in contact with the side surface of the inner ring (202b), and the other end of the return spring is in contact with the valve seat (203 a).

4. A valve for facilitating quick service according to claim 3, wherein: a first sealing ring (202a-1) is arranged on the side face of the outer cylinder (202a), the first sealing ring (202a-1) is in contact with the inner cavity of the valve body (101), an installation groove (202a-2) is formed in the outer surface of the outer cylinder (202a), and the installation groove (202a-2) is matched with the bottom of the outer sleeve (201).

5. The valve for facilitating quick service of claim 4, wherein: the outer surface of the valve seat (203a) is provided with a groove, a second sealing ring (203a-1) is installed in the groove, and the second sealing ring (203a-1) is in contact with the inner cavity of the outer cylinder (202 a).

6. A valve to facilitate quick service according to any one of claims 2, 4 or 5, wherein: the lower valve groove (101a) is internally provided with a mounting assembly (300), and the top of the mounting assembly (300) is in contact with the outer sleeve (201).

7. The valve for facilitating quick service of claim 6, wherein: the mounting assembly (300) comprises a base (301) and a support (302), wherein the base (301) is connected with the support (302);

wherein the base (301) is mounted on the bottom of the valve body (101) through a bolt (400), and the top of the support (302) passes through the lower valve groove (101a) to be in contact with the bottom of the outer sleeve (201).

8. The valve for facilitating quick service of claim 7, wherein: the supporting piece (302) comprises a top barrel (302a), a bottom barrel (302b) and a supporting spring (302c), the top barrel (302a) is sleeved inside the bottom barrel (302b), the top of the top barrel (302a) is in contact with a groove (201b) in the bottom of an external sleeve (201), one end of the supporting spring (302c) is connected with the top of an inner cavity of the top barrel (302a), and the other end of the supporting spring is connected with the bottom of the inner cavity of the bottom barrel (302 b).