Stop valve with valve clack replacement structure

Abstract

The stop valve with the valve clack replacement structure comprises a valve body, a maintenance pipe is fixedly arranged on the front side of the top of the valve body, and an isolation sleeve is connected to the bottom of the inner wall of the maintenance pipe in a sliding mode; a mounting seat is fixedly arranged at the bottom of the valve rod, a butt joint seat is detachably connected to the bottom of the mounting seat in a clamped mode, a valve clack is fixedly arranged at the bottom of the butt joint seat, an upper end cover of the maintenance pipe is detached, the valve clack needs to be lifted to the position above the isolation sleeve, the rear end of the isolation sleeve is adjusted to the top of the inner wall of the valve body, and the hand wheel is matched with the valve rod; a user can conveniently observe through the maintenance pipe, it is ensured that the screw head of the installation bolt faces the maintenance pipe, the user can conveniently pull out the valve clack and the butt joint base from the position below the installation base along the clamping groove by disassembling the installation bolt, and in the operation, due to the arrangement of the isolation sleeve, the user does not need to worry that the installation bolt or the valve clack falls into the valve body; and a user can conveniently disassemble, assemble and replace the valve clack above the isolation sleeve.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to the technical field of stop valve, concretely relates to a stop valve with valve disc replacement structure. BACKGROUND

[0002] During the replacement operation of the valve disc of the stop valve, the pipeline needs to be temporarily closed to avoid the leakage of the conveying medium in the pipeline during the replacement operation of the valve disc.

[0003] During the current valve disc replacement operation, the end cover and the valve rod of the stop valve are exposed for a long time, and metal debris and impurities are likely to fall into the valve body during the disassembly and assembly operation, thereby polluting the internal environment of the valve body.

[0004] The inventor provides a stop valve with a valve disc replacement structure, which comprises a maintenance pipe and an isolation sleeve added to the valve body. During the valve disc replacement operation, the working position of the isolation sleeve is adjusted to prevent impurities from falling into the valve body. UTILITY MODEL CONTENTS

[0005] 1. The utility model solves the technical problem of impurities falling into the valve body during the disassembly and assembly operation of the valve disc of the existing equipment.

[0006] The utility model provides a stop valve with a valve disc replacement structure, which solves the technical problem of impurities falling into the valve body during the disassembly and assembly operation of the valve disc of the existing equipment.

[0007] 2. Technical scheme

[0008] To achieve the above-mentioned purpose, the utility model provides a technical scheme, that is, a stop valve with a valve disc replacement structure, which comprises the following structures:

[0009] A valve body, a water inlet and a water outlet are respectively fixed on the front and rear sides of the bottom of the valve body, a maintenance pipe is fixed on the top front side of the valve body, and an isolation sleeve is slidably connected to the inner wall of the bottom of the maintenance pipe.

[0010] A valve rod, a hand wheel is fixed on the top of the valve rod, an installation seat is fixed on the bottom of the valve rod, a butt joint seat is detachably connected to the bottom of the installation seat, and a valve disc is fixed on the bottom of the butt joint seat.

[0011] Further, a valve cover is fixed on the top of the valve body through bolts, the valve cover is movably sleeved with the outer side of the valve rod in the middle part, a gland is fixed on the top of the valve cover, and the middle part of the gland is threadedly connected with the top of the valve rod.

[0012] Further, a sliding groove is fixed on the left and right sides of the inner wall of the maintenance pipe, an adjusting bolt is threadedly connected to the right side of the inner wall of the maintenance pipe, and an end cover is fixedly connected to the front end of the maintenance pipe through bolts.

[0013] Further, the rear end of the isolation sleeve extends to the top of the inner wall of the valve body, the left and right ends of the top of the isolation sleeve are fixedly provided with sliding pins which are matched with sliding grooves, and the left and right ends of the top of the isolation sleeve are fixedly provided with nut seats, and the middle part of the nut seat at the right end of the isolation sleeve is in threaded connection with the rear end of the adjusting bolt.

[0014] Further, the bottom of the mounting seat is fixedly provided with a clamping groove which is detachably clamped with the top of the butt joint seat.

[0015] Further, the left and right ends of the butt joint seat are inserted with mounting bolts, and the rear ends of the mounting bolts are in threaded connection with the rear end of the mounting seat.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical scheme has the following beneficial effects:

[0018] The utility model discloses a stop valve with valve disc replacement structure, removes the maintenance pipe upper end cover, needs to lift the valve disc to the upper of isolation sleeve, adjusts the rear end of isolation sleeve to the top of the inner wall of valve body, and hand wheel and valve rod cooperate, and the user is convenient to observe through the maintenance pipe, ensures that the screw head of mounting bolt faces the maintenance pipe, removes the mounting bolt, and the user is convenient to draw out the valve disc and butt joint seat from the below of mounting seat along the clamping groove, the setting of isolation sleeve in the operation, does not need to worry about that mounting bolt or valve disc falls into the valve body, and the user is convenient to dismount and replace the valve disc in the upper of isolation sleeve.

[0019] The parts not involved in the device are the same as or can be realized by the prior art. DETAILED DESCRIPTION

[0020] Figure 1 It is the perspective view of the structure of the utility model;

[0021] Figure 2 It is the half cutaway perspective view of the valve body structure of the utility model;

[0022] Figure 3 It is the half cutaway perspective view of the valve body structure of the utility model; Figure 2 It is the enlarged view of the structure of A in the utility model;

[0023] Figure 4 It is the half cutaway perspective view of the valve body structure of the utility model;

[0024] Figure 5 It is the half cutaway perspective view of the valve body structure of the utility model;

[0025] Figure 6 It is the half cutaway perspective view of the valve body structure of the utility model; Figure 5 It is the enlarged view of the structure of B in the utility model.

[0026] Reference signs:

[0027] Valve body-1; valve cover-11; gland-12;

[0028] Maintenance tube-2; chute-21; adjusting bolt-22;

[0029] End cover-3;

[0030] Isolation sleeve-4; sliding pin-41; nut seat-42;

[0031] Valve stem-5; hand wheel-51;

[0032] Mounting seat-6; clamping groove-61;

[0033] Butt joint seat-7; valve clack-71; mounting bolt-72. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings, in which several embodiments of the present application are given. However, the present application can be realized in many different forms and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0035] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be intervening elements; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be intervening elements; the terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for purposes of description only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; as used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0037] Referring to the accompanying drawings Figures 1-6 The present application provides a stop valve with a valve clack replacement structure, comprising the following structure:

[0038] Valve body 1, the bottom of valve body 1 is fixedly provided with water inlet and water outlet on the front and rear sides respectively, the top of valve body 1 is fixedly provided with maintenance tube 2 on the front side, and the inner wall of maintenance tube 2 is slidably connected with isolation sleeve 4 at the bottom.

[0039] The top of the valve stem 5 is fixedly provided with a hand wheel 51, and the bottom of the valve stem 5 is fixedly provided with a mounting seat 6. The bottom of the mounting seat 6 is detachably connected with a butt joint seat 7, and the bottom of the butt joint seat 7 is fixedly provided with a valve disc 71.

[0040] In the embodiment, the top of the valve body 1 is fixedly provided with a valve cover 11 through a bolt. The middle part of the valve cover 11 is movably sleeved with the outer side of the valve stem 5. The top of the valve cover 11 is fixedly provided with a gland 12. The middle part of the gland 12 is threadedly connected with the top of the valve stem 5.

[0041] The gland 12 is assembled above the valve cover 11. The hand wheel 51 drives the valve stem 5 to rotate. The working position adjustment of the valve cover 11 in the gland 12 and the middle part of the valve cover 11 is completed. The valve stem 5 is connected with the valve disc 71 through the mounting seat 6 and the butt joint seat 7. The working position adjustment of the valve disc 71 in the valve body 1 is completed. The opening and closing of the stop valve is realized.

[0042] In the embodiment, the inner wall of the maintenance pipe 2 is fixedly provided with a sliding groove 21 on the left and right sides. The inner wall of the maintenance pipe 2 is threadedly connected with an adjusting bolt 22 on the right side. The front end of the maintenance pipe 2 is fixedly connected with an end cover 3 through a bolt.

[0043] The sliding groove 21 completes the movement guidance of the isolation sleeve 4 in the maintenance pipe 2. The adjusting bolt 22 is matched with the nut seat 42 on the isolation sleeve 4. The working position adjustment of the isolation sleeve 4 in the maintenance pipe 2 is completed. When the valve disc 71 is matched and opened and closed in the valve body 1, the isolation sleeve 4 is accommodated in the maintenance pipe 2.

[0044] When the valve disc 71 is replaced, the valve disc 71 needs to be lifted above the isolation sleeve 4. The rear end of the isolation sleeve 4 is adjusted to the top of the inner wall of the valve body 1. The impurities generated in the maintenance operation of the valve disc 71 are avoided from directly falling into the valve body 1.

[0045] In the embodiment, the rear end of the isolation sleeve 4 extends to the top of the inner wall of the valve body 1. The outer side of the top of the isolation sleeve 4 is fixedly provided with a sliding pin 41 on the left and right ends. The sliding pin 41 is matched with the sliding groove 21. The top of the isolation sleeve 4 is fixedly provided with a nut seat 42 on the left and right ends. The middle part of the nut seat 42 on the right end of the isolation sleeve 4 is threadedly connected with the rear end of the adjusting bolt 22.

[0046] In the embodiment, the bottom of the mounting seat 6 is fixedly provided with a clamping groove 61. The clamping groove 61 is detachably connected with the top of the butt joint seat 7.

[0047] The clamping groove 61 of the mounting seat 6 is used for the assembly positioning of the butt joint seat 7. The installation and locking of the mounting seat 6 and the butt joint seat 7 also need to be completed through the installation bolt 72. The valve disc 71 is conveniently disassembled and assembled below the mounting seat 6.

[0048] In the embodiment, the left and right ends of the butt joint seat 7 are inserted with the installation bolt 72. The rear end of the installation bolt 72 is threadedly connected with the rear end of the mounting seat 6.

[0049] Specific operation process:

[0050] In the valve disc 71 dismounting operation, the upper end cover 3 of the maintenance pipe 2 is dismounted, the valve disc 71 needs to be lifted to the upper side of the isolation sleeve 4, the rear end of the isolation sleeve 4 is adjusted to the top of the inner wall of the valve body 1, the hand wheel 51 cooperates with the valve rod 5, the user can observe through the maintenance pipe 2, the screw head of the mounting bolt 72 is ensured to face the maintenance pipe 2, the mounting bolt 72 is dismounted, the user can take out the valve disc 71 and the butt joint seat 7 from the lower side of the mounting seat 6 along the clamping groove 61, in the operation, due to the setting of the isolation sleeve 4, the mounting bolt 72 or the valve disc 71 does not need to be worried to fall into the valve body 1, the user can dismount and replace the valve disc 71 above the isolation sleeve 4.

[0051] The above-mentioned embodiments only express certain implementation manners of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that, for ordinary skilled in the art, on the premise of not departing from the present application concept, a number of modifications and improvements can be made, these all belong to the protection scope of the present application; therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A globe valve provided with a valve disc replacement structure, characterized by: The utility model provides a valve body (1), the bottom front and rear sides of valve body (1) are fixed with water inlet and water outlet respectively, the top front side of valve body (1) is fixed with maintenance pipe (2), the inner wall bottom of maintenance pipe (2) is slidably connected with isolating sleeve (4); Valve stem (5), the top of valve stem (5) is fixed with hand wheel (51), the bottom of valve stem (5) is fixed with mounting seat (6), the bottom of mounting seat (6) is detachably connected with docking seat (7), the bottom of docking seat (7) is fixed with valve clack (71). The top of valve body (1) is fixed with valve cover (11) through bolt, the middle part of valve cover (11) is movably sleeved with the outer side of valve stem (5), the top of valve cover (11) is fixed with gland (12), the middle part of gland (12) is threadedly connected with the top of valve stem (5).

2. A globe valve provided with a valve disc replacement structure according to claim 1, characterized in that: The inner wall left and right sides of maintenance pipe (2) are fixed with sliding groove (21), the right side of the inner wall of maintenance pipe (2) is threadedly connected with adjusting bolt (22), the front end of maintenance pipe (2) is fixedly connected with end cover (3) through bolt.

3. A globe valve having a valve disc replacement structure according to claim 1, characterized in that: The rear end of isolating sleeve (4) extends to the inner wall top of valve body (1), the top left and right ends of isolating sleeve (4) are fixed with sliding pin (41) outside, the sliding pin (41) is matched with sliding groove (21), the top left and right ends of isolating sleeve (4) are fixed with nut seat (42), the middle part of nut seat (42) on the right end of isolating sleeve (4) is threadedly connected with the rear end of adjusting bolt (22).

4. A globe valve having a valve disc replacement structure according to claim 1, characterized in that: The bottom of mounting seat (6) is fixed with clamping groove (61), the top outside of docking seat (7) is detachably connected with clamping groove (61).

5. A globe valve having a valve disc replacement structure according to claim 1, characterized in that: The left and right ends of docking seat (7) are inserted with mounting bolt (72), and the rear end of mounting bolt (72) is threadedly connected with the rear end of mounting seat (6).

6. A globe valve having a disc replacement structure according to claim 1, characterized in that: ​

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