Novel pneumatic stop valve

Abstract

The utility model discloses a novel pneumatic stop valve, relates to the technical field of pneumatic stop valves, and solves the problems that when the pneumatic stop valve is disassembled and cleaned, a main valve connected with a pipeline needs to be closed, and the inside of the pneumatic stop valve is controlled to circulate, so that the pneumatic stop valve is inconvenient to clean, and the cleaning efficiency is high. The device comprises a connecting pipe and a second sealing plug, a feeding pipe and a discharging pipe are fixedly connected to the interiors of the side walls of the two sides of the connecting pipe correspondingly, and through cooperation between a screw and the second sealing plug, the second sealing plug can conduct blocking work on the position between the feeding pipe and the discharging pipe under rotation of the screw; and therefore, when the first sealing plug is taken out for cleaning, the interior of the connecting pipe can be sealed, internal materials can be prevented from being discharged, meanwhile, an external main valve does not need to be closed, and the cleaning efficiency of the pneumatic stop valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pneumatic stop valve, concretely to a novel pneumatic stop valve. BACKGROUND

[0002] Pneumatic stop valve is used for doing cut-off, and is a control component for distributing and changing the flow direction of medium, the opening and closing part of the pneumatic stop valve is a plug-shaped valve disc, the sealing surface is a plane or a conical surface, and the valve disc moves linearly along the center line of the fluid.

[0003] Through the retrieval, the patent with patent publication number CN212868470U discloses a novel pneumatic stop valve, which comprises a single-acting cylinder and a valve body, the two ends of the valve body are fixedly connected with an inlet and an outlet respectively, a valve rod is slidably connected in the middle of the valve body, the end of the valve rod is fixedly connected with a valve disc, a material passage is formed in the middle of the valve body, an opening and closing channel is fixedly formed in the top of the material passage, the inlet and the outlet are communicated with the material passage, the valve rod is located in the middle of the opening and closing channel, a bottom flange is fixedly connected to the bottom of the valve body, a dirt-containing guide groove is formed in the middle of the bottom flange, a connecting block is fixedly connected to the top of the valve rod, and the movable end of the single-acting cylinder is fixedly connected to the connecting block, the utility model separates the valve body and the bottom flange to clean impurities regularly, prolongs the service life of the sealing surface, and avoids wear and loss of sealing performance.

[0004] However, when the pneumatic stop valve is disassembled and cleaned, the total valve connected with the pipeline needs to be closed, which causes the internal flow of the pneumatic stop valve, making it inconvenient to clean the pneumatic stop valve and reducing the cleaning efficiency. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a novel pneumatic stop valve, which solves the problem that the pneumatic stop valve needs to be disassembled and cleaned, the total valve connected with the pipeline needs to be closed, the internal flow of the pneumatic stop valve is caused, it is inconvenient to clean the pneumatic stop valve, and the cleaning efficiency is reduced.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a novel pneumatic stop valve, comprising a connecting pipe and a second sealing plug, the inner sides of the two side walls of the connecting pipe are fixedly connected with an inlet pipe and an outlet pipe respectively, the outlet pipe is arranged above the inlet pipe, a threaded pipe is fixedly connected in the inside of the connecting pipe, the inside of the threaded pipe is threadedly connected with a screw rod, a knob is fixedly installed at the lower end of the screw rod, a second sealing plug is rotatably connected to the upper end of the screw rod, the second sealing plug is arranged at the upper end of the threaded pipe, a sealing ring is fixedly sleeved to the outer side wall of the second sealing plug, and the sealing ring is tightly attached to the inner side wall of the connecting pipe.

[0007] Preferably, the upper end of the connecting pipe is fixedly provided with a first connecting flange, the upper end of the connecting pipe is provided with a cylinder, the output shaft part of the cylinder is fixedly provided with a second connecting flange, the first connecting flange is fastened and connected with the second connecting flange through fixing bolts, the side walls of the first connecting flange and the second connecting flange are sealingly connected through sealing pads, the output shaft of the cylinder enters the inside of the connecting pipe through the inside of the second connecting flange, the inside of the connecting pipe is sealingly connected with a first sealing plug, and the output shaft of the cylinder is fixedly connected with the upper end of the first sealing plug, so that cleaning work is facilitated.

[0008] Preferably, the diameter of the second sealing plug and the knob is larger than the diameter of the threaded pipe, and the bottom surface of the second sealing plug and the top surface of the knob are sealingly connected with the bottom of the connecting pipe through sealing pads, so that the inside of the threaded pipe is sealed.

[0009] Preferably, when the top surface of the knob is in close contact with the top of the connecting pipe, the second sealing plug is located between the feeding pipe and the discharging pipe, so that leakage in the inside of the connecting pipe can be prevented.

[0010] Preferably, the longitudinal distance between the right end of the feeding pipe and the left end of the discharging pipe is larger than the thickness of the second sealing plug, so that the feeding pipe and the discharging pipe can be effectively sealed.

[0011] The utility model provides a novel pneumatic stop valve. Has the following beneficial effects:

[0012] 1. The novel pneumatic stop valve, when using the novel pneumatic stop valve, the cooperation between the screw rod and the second sealing plug can make the second sealing plug seal the feeding pipe and the discharging pipe under the rotation of the screw rod, so that the inside of the connecting pipe can be sealed when the first sealing plug is removed for cleaning, which can prevent the material inside from being discharged and does not need to close the external total valve, improving the cleaning efficiency of the pneumatic stop valve.

[0013] 2. The novel pneumatic stop valve, when using the novel pneumatic stop valve, the diameter of the second sealing plug and the knob is larger than the diameter of the threaded pipe, so that the side walls of the second sealing plug and the knob can be in close contact with the side walls of the threaded pipe, and the inside of the threaded pipe is sealed to prevent the material inside from leaking. ACCURATE DRAWINGS

[0014] Fig. 1 It is a whole structure schematic view of the utility model;

[0015] Fig. 2 It is a side view of the utility model;

[0016] Fig. 3 is a sectional view of the utility model.

[0017] In the figure, 1, connecting pipe; 2, feed pipe; 3, discharge pipe; 4, first connecting flange; 5, second connecting flange; 6, cylinder; 7, threaded pipe; 8, screw rod; 9, knob; 10, first sealing plug; 11, second sealing plug; 12, sealing ring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0019] Embodiment 1: please refer to Figs. 1-3 The utility model discloses an embodiment provides a kind of novel pneumatic stop valve, including connecting pipe 1 and second sealing plug 11, the both sides wall inside of connecting pipe 1 is respectively fixedly connected with feed pipe 2 and discharge pipe 3, and discharge pipe 3 is set to the top of feed pipe 2, the inside fixedly connected with threaded pipe 7 of connecting pipe 1, threaded pipe 7 is screw connected with screw rod 8, the lower end of screw rod 8 is fixedly installed with knob 9, the upper end of screw rod 8 is rotatably connected with second sealing plug 11, second sealing plug 11 is set to the upper end of threaded pipe 7, and the outer side wall of second sealing plug 11 is fixedly sleeved with sealing ring 12, sealing ring 12 and the inner side wall of connecting pipe 1 are closely combined, the diameter size of second sealing plug 11 and knob 9 is all greater than the diameter size of threaded pipe 7, and the bottom surface of second sealing plug 11 and the top surface of knob 9 are respectively sealedly connected with the bottom of connecting pipe 1 and bottom, second sealing plug 11 is between feed pipe 2 and discharge pipe 3 when the top surface of knob 9 and the top of connecting pipe 1 are mutually combined, the longitudinal distance size between the right end of feed pipe 2 and the left end of discharge pipe 3 is greater than the thickness size of second sealing plug 11, when pneumatic stop valve main part is disassembled and cleaned, first rotate screw rod 8, make second sealing plug 11 move upwards, until second sealing plug 11 moves to between feed pipe 2 and discharge pipe 3, can conveniently block between feed pipe 2 and discharge pipe 3, then disassemble cylinder 6, and clean.

[0020] Embodiment 2: in order to facilitate cleaning work, in the embodiment, as Figs. 2-3As shown, the upper end of the connecting pipe 1 is fixedly provided with a first connecting flange 4, the upper end of the connecting pipe 1 is provided with a cylinder 6, the output shaft part of the cylinder 6 is fixedly provided with a second connecting flange 5, the first connecting flange 4 and the second connecting flange 5 are fastened and connected through fixing bolts, and the side walls of the first connecting flange 4 and the second connecting flange 5 are sealingly connected through sealing pads, the output shaft of the cylinder 6 enters the inside of the connecting pipe 1 through the inside of the second connecting flange 5, the inside of the connecting pipe 1 is sealingly connected with a first sealing plug 10, and the output shaft of the cylinder 6 is fixedly connected with the upper end of the first sealing plug 10, when the inside of the connecting pipe 1 is cleaned, the first connecting flange 4 and the second connecting flange 5 are disassembled, the output shaft of the cylinder 6 is completely moved to the outside of the connecting pipe 1, and the connecting pipe 1 can be conveniently cleaned.

[0021] It should be noted that in the embodiment, when the new type pneumatic stop valve is used, as shown, Figs. 1-3 When the pneumatic stop valve body is disassembled and cleaned, first, the screw rod 8 is rotated, the second sealing plug 11 is moved upward, the top surface of the knob 9 is tightly attached to the bottom of the threaded pipe 7, at this time, the second sealing plug 11 is moved to between the feeding pipe 2 and the discharging pipe 3, the feeding pipe 2 and the discharging pipe 3 can be conveniently blocked, then the cylinder 6 is disassembled, when the inside of the connecting pipe 1 is cleaned, the first connecting flange 4 and the second connecting flange 5 are disassembled, the output shaft of the cylinder 6 is completely moved to the outside of the connecting pipe 1, the connecting pipe 1 can be conveniently cleaned, and the cleaning work is performed.

[0022] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A novel pneumatic shut-off valve, characterized in that: The device includes a connecting pipe (1) and a second sealing plug (11). The two side walls of the connecting pipe (1) are respectively fixedly connected to a feed pipe (2) and a discharge pipe (3), and the discharge pipe (3) is located above the feed pipe (2). The inside of the connecting pipe (1) is fixedly connected to a threaded pipe (7), and the inside of the threaded pipe (7) is threadedly connected to a screw (8). A knob (9) is fixedly installed at the lower end of the screw (8), and the upper end of the screw (8) is rotatably connected to the second sealing plug (11). The second sealing plug (11) is located at the upper end of the threaded pipe (7), and a sealing ring (12) is fixedly sleeved on the outer side wall of the second sealing plug (11). The sealing ring (12) is tightly fitted to the inner side wall of the connecting pipe (1).

2. The novel pneumatic shut-off valve according to claim 1, characterized in that: The upper end of the connecting pipe (1) is fixedly installed with a first connecting flange (4), and the upper end of the connecting pipe (1) is provided with a cylinder (6). The output shaft of the cylinder (6) is fixed with a second connecting flange (5). The first connecting flange (4) and the second connecting flange (5) are fastened together by a fixing bolt, and the side walls of the first connecting flange (4) and the second connecting flange (5) are sealed together by a sealing gasket. The output shaft of the cylinder (6) enters the interior of the connecting pipe (1) through the interior of the second connecting flange (5). The interior of the connecting pipe (1) is sealed with a first sealing plug (10), and the output shaft of the cylinder (6) is fixedly connected to the upper end of the first sealing plug (10).

3. The novel pneumatic shut-off valve according to claim 1, characterized in that: The diameters of the second sealing plug (11) and the knob (9) are both larger than the diameter of the threaded tube (7), and the bottom surface of the second sealing plug (11) and the top surface of the knob (9) are respectively sealed to each other by the bottom of the connecting tube (1) through the sealing gasket.

4. The novel pneumatic shut-off valve according to claim 1, characterized in that: When the top surface of the knob (9) is in contact with the top of the connecting pipe (1), the second sealing plug (11) is located between the feed pipe (2) and the discharge pipe (3).

5. The novel pneumatic shut-off valve according to claim 1, characterized in that: The longitudinal distance between the right end of the feed pipe (2) and the left end of the discharge pipe (3) is greater than the thickness of the second sealing plug (11).

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