Soft sealing stop valve

Abstract

The utility model is suitable for the technical field of stop valves, and provides a soft sealing stop valve which comprises a valve body provided with a copper sleeve. The central gasket is arranged on the valve body through a hexagon bolt; the valve rod is mounted on the valve body through a valve rod copper nut; the valve core is fixedly mounted at the bottom of the valve rod; and the filtering mechanism is arranged on the valve body and is used for filtering water entering the valve body. According to the scheme, the soft sealing stop valve can be used for soft sealing, can be used for drinking water, is safer to use, and meanwhile can filter large-particle impurities in water, so that the situation that the impurities enter the valve body is reduced, the situation that internal parts are abraded by the impurities is reduced, and the overall use sealing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of stop valve, especially a kind of soft sealing stop valve. BACKGROUND

[0002] Stop valve is also called gate valve, belongs to forced sealing type valve, so when valve is closed, pressure must be applied to valve flap, to force sealing surface not to leak. When medium enters valve from below valve flap, resistance that operating force needs to overcome is the friction of valve stem and packing and the thrust generated by the pressure of medium, so the force of closing valve is greater than the force of opening valve, so the diameter of valve stem is large, otherwise the failure of valve stem top bending occurs.

[0003] However, some existing stop valves are hard sealing, and the surface is paint-sprayed, which is easy to rust and cannot be used for drinking water. Some stop valves cannot filter impurities in water, which leads to easy accumulation of impurities in the stop valve, causing internal parts to be prone to wear and tear, and reducing the overall sealing performance. INVENTION CONTENTS

[0004] The utility model provides a kind of soft sealing stop valve, to solve the problem that the currently used stop valve is prone to rust and cannot filter impurities in water as described in the above background.

[0005] To solve the above problems, the utility model is realized as follows: a kind of soft sealing stop valve, comprising: valve body, copper sleeve is assembled in the valve rod hole in the valve body;Valve cover;Center gasket is installed between the valve body and valve cover by hexagon bolt;Valve rod is installed in the valve body by valve rod copper nut;Valve core is fixedly installed at the bottom of the valve rod;Filtering mechanism is arranged on the valve body, and the filtering mechanism is used to filter the water entering the valve body.

[0006] Preferably, asbestos packing is provided between the valve cover and the valve rod, and a T-shaped groove is provided in the valve cover, and a bolt and a gland are fitted in the T-shaped groove.

[0007] Preferably, the center gasket is flexible graphite, and the asbestos packing is asbestos rope.

[0008] Preferably, the filtering mechanism comprises: a Y-shaped connecting pipe fixedly installed on the valve body by mounting bolt, a mounting bracket fixedly installed in the connecting pipe;Filter screen cylinder is assembled in the mounting bracket, and the filter screen cylinder is used to filter and remove impurities in the water entering the valve body;Sealing mechanism is arranged on the mounting bracket, and the sealing mechanism is used to seal the end of the mounting bracket.

[0009] Preferably, the sealing mechanism comprises a sealing cover arranged on the end of the mounting frame, a sealing abutting ring fixedly arranged on the sealing cover and used for abutting against the bottom of the filter screen barrel, and a plurality of mounting mechanisms arranged on the sealing cover and the mounting frame and used for mounting and connecting the sealing cover and the mounting frame.

[0010] Preferably, the mounting mechanism comprises a connecting block fixedly arranged on the outer wall of the mounting frame, and connecting bolts arranged on the sealing cover and the connecting block and used for fixedly connecting the sealing cover and the connecting block.

[0011] Preferably, a positioning ring is fixedly arranged in the mounting frame and used for abutting against and limiting the top of the water inlet of the filter screen barrel, a first sealing ring is arranged on the positioning ring, and a second sealing ring is arranged on the end of the filter screen barrel, the first sealing ring and the second sealing ring being matched.

[0012] Compared with the related art, the soft sealing stop valve has the following beneficial effects:

[0013] Compared with the prior art, the soft sealing stop valve can be used for soft sealing, can be used for drinking water, is safer to use, can filter large-particle impurities in water, can reduce the impurities from entering the valve body, can reduce the abrasion of the internal components by the impurities, and can improve the overall sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a front view of the soft sealing stop valve according to the utility model;

[0015] Figure 2 is an enlarged structure diagram of part A shown in Figure 1

[0016] Figure 3 is an enlarged structure diagram of part B shown in Figure 1

[0017] Figure 4 is an enlarged structure diagram of part C shown in Figure 1

[0018] ​​​1, valve body; 2, copper sleeve; 3, valve core; 4, center gasket; 5, hexagonal bolt; 6, asbestos packing; 7, valve cover; 8, valve rod copper nut; 9, valve rod; 10, T-shaped groove bolt; 11, gland; 12, connecting pipe; 1201, mounting bracket; 13, filter screen; 14, sealing cover; 15, sealing abutment ring; 16, connecting block; 17, connecting bolt; 18, positioning ring; 19, first sealing ring; 20, second sealing ring. DETAILED DESCRIPTION

[0019] 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 herein is for describing particular embodiments only and is not intended to be limiting of the application; the present application will be described with reference to the drawings in which is shown by way of illustration the application in accordance with embodiments described herein in which: the terminology includes the words specifically mentioned herein and all grammatical variations thereof and the terms "comprise", "comprising", "include", "including", "has", "having" or variants thereof are inclusive or open-ended and do not exclude additional, unrecited elements or method steps; the terms "first", "second" and the like do not denote any order, quantity, combination or arrangement, but rather are used to distinguish one element from another, and the terms "inner", "outer", "left", "right", "up" and "down" designate relative positions or orientations based on the orientation shown in the drawings and are used for convenience in describing the present application and simplifying the description and are not intended to denote or imply that a specific orientation of the device or element is required or that the device or element must be constructed and operated in that particular orientation, and therefore should not be interpreted as limiting the present application.

[0020] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive or alternative embodiments. It is expressly understood that the embodiments described herein are combinable.

[0021] The utility model embodiment provides a kind of soft sealing stop valve, as shown in Figures 1-4 The soft sealing stop valve includes: valve body 1, copper sleeve 2 is assembled in the valve rod hole in the valve body 1;Valve cover 7;Center gasket 4 is installed between the valve body 1 and valve cover by hexagonal bolt 5;Valve rod 9 is installed in the valve body 1 by valve rod copper nut 8;Valve core 3 is fixedly installed at the bottom of the valve rod 9;Filter mechanism is arranged on the valve body 1, and the filter mechanism is used to filter the water entering into the valve body 1.

[0022] In the embodiment, the soft sealing stop valve body is formed by the valve body 1, the copper sleeve 2, the center gasket 4, the valve rod 9 and the valve core 3, and is made of a soft sealing material such as rubber, plastic, polytetrafluoroethylene or the like when being manufactured, and the valve core 3 is driven by the valve rod 9 to rotate in the valve body 1 for adjustment, so that the use of water flow can be started or stopped, and because the soft sealing material is used, rust can be effectively reduced, so that the stop valve can be used for drinking water and is safer to use, and meanwhile, under the action of the filtering mechanism, large-particle impurities in water can be filtered, so that the impurities entering the valve body 1 are reduced, the impurities accumulated in the valve body 1 are reduced, the wear of internal components caused by the impurities is reduced, and the sealing effect is improved.

[0023] In the further preferred embodiment of the utility model, the valve cover 7 and the valve rod are provided with the asbestos packing 6, the valve cover 7 is provided with a T-shaped groove, and the T-shaped groove is adapted with the bolt 10 and the gland 11.

[0024] In the embodiment, the valve cover 7 is convenient for installing the valve rod 9, and the asbestos packing 6 can fill the gap between the valve rod 9 and the valve cover 7, so that fluid and gas are prevented from leaking from the gap, the normal operation of the system is ensured, and the sealing property in use is improved.

[0025] In the further preferred embodiment of the utility model, the center gasket 4 is flexible graphite, and the asbestos packing 6 is asbestos rope.

[0026] In the embodiment, the flexible graphite of the center gasket 4 can closely adhere to the sealing surface in the valve, and effectively prevent medium leakage.

[0027] In the further preferred embodiment of the utility model, the filtering mechanism comprises a Y-shaped connecting pipe 12 fixedly installed on the valve body 1 through mounting bolts, a mounting frame 1201 is fixedly installed in the connecting pipe 12, a filter screen cylinder 13 is assembled in the mounting frame 1201, the filter screen cylinder 13 is used for filtering and removing impurities from water entering the valve body 1, and a sealing mechanism is arranged on the mounting frame 1201 and used for sealing the end of the mounting frame 1201.

[0028] In the embodiment, when the water flows into the connecting pipe 12, the large impurities in the water can be filtered by the filter screen cylinder 13, so that the impurities entering the valve body 1 are reduced, the accumulation of impurities in the valve body 1 is reduced, the wear of the internal components by the impurities is reduced, the sealing effect of the whole is improved, and the mounting frame 1201 can be sealed by the sealing mechanism.

[0029] In a further preferred embodiment of the utility model, the sealing mechanism comprises: a sealing cover 14 arranged on the end of the mounting frame 1201; a sealing contact ring 15 fixedly installed on the sealing cover 14, which is used for contacting the bottom of the filter screen cylinder 13; the sealing cover 14 and the mounting frame 1201 are provided with a plurality of mounting mechanisms, which are used for mounting and connecting the sealing cover 14 and the mounting frame 1201.

[0030] In the embodiment, the end of the mounting frame 1201 can be sealed by the sealing cover 14 and the sealing contact ring 15, and the filter screen cylinder 13 is fixed in the mounting frame 1201, and when the filter screen cylinder 13 needs to be disassembled and cleaned, the mounting mechanism is disassembled from the mounting frame 1201 and the sealing cover 14, and the sealing cover 14 is disassembled from the mounting frame 1201, so that the filter screen cylinder 13 can be disassembled and cleaned conveniently.

[0031] In a further preferred embodiment of the utility model, the mounting mechanism comprises: a connecting block 16 fixedly installed on the outer wall of the mounting frame 1201; a connecting bolt 17 arranged on the sealing cover 14 and the connecting block 16, and the sealing cover 14 and the connecting block 16 are fixedly connected through the connecting bolt 17.

[0032] In the embodiment, when the mounting mechanism is operated, the connecting bolt 17 is disassembled from the sealing cover 14 and the connecting block 16 by rotating the connecting bolt 17 with a tool, so that the sealing cover 14 can be disassembled from the mounting frame 1201, and the filter screen cylinder 13 can be disassembled and cleaned conveniently, and the water in the connecting pipe 12 needs to be stopped when the filter screen cylinder 13 is disassembled.

[0033] In a further preferred embodiment of the utility model, a positioning ring 18 is fixedly installed in the mounting frame 1201, the positioning ring 18 is used for contacting and limiting the top of the water inlet of the filter screen cylinder 13, a first sealing ring 19 is arranged on the positioning ring 18, the end of the filter screen cylinder 13 is provided with a second sealing ring 20, and the first sealing ring 19 and the second sealing ring 20 are matched.

[0034] In the embodiment, the positioning ring 18 is used to abut and limit the top of the water inlet of the filter screen barrel 13, so that the filter screen barrel 13 is convenient to install, and the sealing between the end of the filter screen barrel 13 and the mounting frame 1201 can be improved under the interaction of the first sealing ring 19 and the second sealing ring 20.

[0035] Compared with the related art, the whole stop valve can be used for soft sealing, can be used for drinking water, is safer to use, can filter large-particle impurities in water, can reduce the impurities into the valve body 1, can reduce the impurities to wear the internal components, and can improve the sealing effect of the whole.

[0036] In several embodiments provided in the application, it should be understood that the disclosed device can be implemented in other ways.

[0037] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can combine, add or delete the features of the embodiments of the present application according to the circumstances without creative labor, so as to obtain different, but essentially not deviating from the concept of the present application. Other technical solutions, which also belong to the scope of protection of the present application.

Claims

1. A soft-seal globe valve characterized by, Include: The valve body, the valve stem hole in the valve body is equipped with a copper bushing; valve cover; the center gasket is installed between the valve body and the valve cover by a hexagonal bolt; the valve stem is installed in the valve body by a valve stem copper nut; the valve core is fixedly installed at the bottom of the valve stem; the filter mechanism is arranged on the valve body, and the filter mechanism is used for filtering the water entering the valve body.

2. The soft-seal globe valve of claim 1, wherein, The valve cover and the valve stem are provided with an asbestos packing, and the valve cover is provided with a T-shaped groove, and the T-shaped groove is adapted with a bolt and a gland.

3. The soft-seal globe valve of claim 2, wherein, The center gasket is flexible graphite, and the asbestos packing is asbestos rope.

4. The soft-seal globe valve of claim 1, wherein, The filter mechanism includes: a Y-shaped connecting pipe fixedly installed on the valve body by a mounting bolt, a mounting frame fixedly installed in the connecting pipe, a filter screen cylinder assembled in the mounting frame, the filter screen cylinder is used for filtering the water entering the valve body; the sealing mechanism is arranged on the mounting frame, and the sealing mechanism is used for sealing the end of the mounting frame.

5. The soft-seal globe valve of claim 4, wherein, The sealing mechanism includes: a sealing cover arranged on the end of the mounting frame; a sealing abutting ring fixedly installed on the sealing cover, the sealing abutting ring is used for abutting the bottom of the filter screen cylinder; the sealing cover and the mounting frame are provided with a plurality of mounting mechanisms, the mounting mechanisms are used for mounting and connecting the sealing cover and the mounting frame.

6. The soft-seal globe valve of claim 5, wherein, The mounting mechanism includes: a connecting block fixedly installed on the outer wall of the mounting frame; a connecting bolt is arranged on the sealing cover and the connecting block, and the sealing cover and the connecting block are fixedly connected through the connecting bolt.

7. The soft-seal globe valve of claim 6, wherein, The mounting frame is fixedly installed with a positioning ring, the positioning ring is used for abutting and limiting the top of the water inlet of the filter screen barrel, a first sealing ring is arranged on the positioning ring, and a second sealing ring is arranged on the end of the filter screen barrel, the first sealing ring and the second sealing ring are adapted.

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