Pneumatic stop valve capable of emergency braking

Abstract

The utility model relates to a pneumatic shut-off valve capable of emergency braking, which belongs to the technical field of pneumatic shut-off valves and comprises a pneumatic shut-off valve body and two connecting pipes, two valve body connecting pipes are fixedly mounted on the surface of the pneumatic shut-off valve body, and mounting mechanisms are arranged between the connecting pipes and the valve body connecting pipes. The mounting mechanism comprises a threaded sleeve connected to the surface of the connecting pipe in a sleeving mode, a mounting ring is fixedly mounted on the surface of the valve body connecting pipe, and a threaded connecting ring is fixedly mounted on the surface of the mounting ring. According to the pneumatic cut-off valve capable of emergency braking, through cooperation of the threaded sleeve and the threaded connecting ring, connection between the connecting pipe and the valve body connecting pipe becomes simple, convenient and rapid, and during use, the pneumatic cut-off valve body can be mounted or dismounted only by rotating the threaded sleeve to be in threaded connection with the threaded connecting ring; the mounting efficiency of the pneumatic stop valve body is greatly improved, and maintenance and replacement of the pneumatic stop valve body are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic cut -off valve technical field, concretely is a kind of pneumatic cut -off valve of emergency braking. BACKGROUND

[0002] Pneumatic cut-off valve is all played the function of quick cut-off, with simple structure, reaction sensitive, action reliable and so on.It can be widely applied in petroleum, chemical industry, metallurgy and other industrial production departments, and quick emergency pneumatic cut-off valve is a kind of pneumatic cut-off valve of emergency braking.Pneumatic cut-off valve: also called pneumatic cut-off valve, it is a kind of actuator in automation system, which is composed of multi-spring pneumatic diaphragm actuator or floating piston actuator and regulating valve, receives the signal of regulating instrument, controls the cut-off, connection or switching of fluid in process pipeline.It has the characteristics of simple structure, quick response, reliable operation, etc.

[0003] The utility model discloses a kind of pneumatic cut-off valves of emergency braking, including pneumatic cut-off valve body, installation flange structure is installed on the pneumatic cut-off valve body, pipeline flange structure is installed on the outer end of the installation flange structure, connecting structure is installed on the pneumatic cut-off valve body, the connecting structure includes installation base ring, connecting plate structure and blocking plate structure, the connecting plate structure is several and symmetrically installed on the outer end of installation base ring, the blocking plate structure is several and respectively rotationally installed on several connecting plate structures, fixed baffle is installed on the outer side of the pipeline flange structure.The utility model discloses a kind of pneumatic cut-off valves of emergency braking, belong to pneumatic cut-off valve field, by setting connecting structure, the step of pneumatic cut-off valve body and pipeline flange structure installation connection can be simplified, so as to can improve the efficiency of pneumatic cut-off valve body and pipeline flange structure installation connection.

[0004] The above patent is directed to the quick emergency pneumatic cut-off valve in prior art when using installation is all through several bolts and conveying pipeline installation connection, this kind of installation mode makes the installation step of quick emergency pneumatic cut-off valve be more tedious, thereby leading to the installation efficiency of quick emergency pneumatic cut-off valve be relatively low shortcoming is improved, and the present application is another embodiment for the problem provided in the above patent. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of pneumatic cut-off valve of emergency braking, with the advantages of high installation efficiency, solves the problem that the quick emergency pneumatic cut-off valve in prior art when using installation is all through several bolts and conveying pipeline installation connection, this kind of installation mode makes the installation step of quick emergency pneumatic cut-off valve be more tedious, thereby leading to the installation efficiency of quick emergency pneumatic cut-off valve be relatively low.

[0006] To achieve the above object, the utility model provides the following technical scheme: A pneumatic cut -off valve of emergency brake, including pneumatic cut -off valve body and two connecting pipes, the pneumatic cut -off valve body surface fixed mounting has two valve body connecting pipes, be equipped with mounting mechanism between connecting pipe and valve body connecting pipe,

[0007] The mounting mechanism includes a threaded sleeve that fits on the surface of the connecting pipe, the valve body connecting pipe surface fixed mounting has installation ring, the installation ring surface fixed mounting has a threaded connection ring.

[0008] Further, the connecting pipe surface fixed mounting has a anti -drop ring, the anti -drop ring is located in the inside of threaded sleeve.

[0009] Further, the valve body connecting pipe surface fixed mounting has a limit ring, the limit ring surface fixed mounting has three limit insertion rods, the anti -drop ring surface is equipped with three limit insertion holes, the limit insertion rod and limit insertion hole are adapted.

[0010] Further, the limit ring surface fixed mounting has a first sealing ring, the diameter of the first sealing ring is adapted to the outer diameter of the connecting pipe.

[0011] Further, the threaded sleeve surface fixed mounting has a connecting barrel that fits on the surface of the connecting pipe and is in sliding contact with the surface of the connecting pipe, the connecting barrel surface fixed mounting has a rotating ring.

[0012] Further, the connecting barrel surface is screwed with two fixed bolts that penetrate the connecting barrel.

[0013] Further, the outer diameter of the valve body connecting pipe is adapted to the inner diameter of the connecting pipe.

[0014] Further, the installation ring surface fixed mounting has a second sealing ring, the diameter of the second sealing ring is adapted to the outer diameter of the threaded sleeve.

[0015] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0016] The pneumatic cut -off valve of emergency brake, through the cooperation of threaded sleeve and threaded connection ring, makes the connection between connecting pipe and valve body connecting pipe become simple and fast, only need to rotate threaded sleeve and threaded connection ring screw connection when using can complete the installation or disassembly of pneumatic cut -off valve body, greatly improves the installation efficiency of pneumatic cut -off valve body, is convenient for the maintenance and replacement of pneumatic cut -off valve body. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The utility model pneumatic cut -off valve body and connecting pipe connection structure schematic view is shown in the figure.

[0018] Fig. 2 It is pneumatic cut-off valve body structure schematic view of the utility model;

[0019] Fig. 3 It is connecting pipe structure schematic view of the utility model;

[0020] Fig. 4 It is thread sleeve structure schematic view of the utility model;

[0021] Fig. 5 It is anti-drop ring structure schematic view of the utility model;

[0022] Fig. 6 It is limiting ring structure schematic view of the utility model.

[0023] In the drawing: 1, pneumatic cut-off valve body;2, connecting pipe;3, valve body connecting pipe;4, thread sleeve;5, mounting ring;6, threaded connection ring;7, anti-drop ring;8, limiting ring;9, limiting plug;10, limiting hole;11, connecting barrel;12, rotating ring;13, first sealing ring;14, second sealing ring;15, fixing bolt. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below 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, 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 protection of the utility model.

[0025] Please refer to Figs. 1 to 6 The pneumatic cut-off valve with emergency brake in the embodiment comprises a pneumatic cut-off valve body 1 and two connecting pipes 2, the surface of the pneumatic cut-off valve body 1 is fixedly provided with two valve body connecting pipes 3, the outer diameter of the valve body connecting pipe 3 is matched with the inner diameter of the connecting pipe 2, so that the valve body connecting pipe 3 can be inserted into the connecting pipe 2, a mounting mechanism is arranged between the connecting pipe 2 and the valve body connecting pipe 3, the mounting mechanism comprises a thread sleeve 4 sleeved on the surface of the connecting pipe 2, the surface of the connecting pipe 2 is fixedly provided with an anti-drop ring 7, the anti-drop ring 7 is located on the inner side of the thread sleeve 4, the anti-drop ring 7 can prevent the thread sleeve 4 from being separated from the surface of the connecting pipe 2, the surface of the valve body connecting pipe 3 is fixedly provided with a mounting ring 5, the surface of the mounting ring 5 is fixedly provided with a second sealing ring 14, the diameter of the second sealing ring 14 is matched with the outer diameter of the thread sleeve 4, so that the connection between the mounting ring 5 and the thread sleeve 4 can be sealed, and the surface of the mounting ring 5 is fixedly provided with a threaded connection ring 6.

[0026] Among them, a limiting ring 8 is fixedly installed on the surface of the valve body connecting pipe 3, and three limiting rods 9 are fixedly installed on the surface of the limiting ring 8. Three limiting holes 10 are opened on the surface of the anti-detachment ring 7. The limiting rods 9 and the limiting holes 10 are adapted to each other. By setting the limiting rods 9 and the limiting holes 10, it is easy to realize the docking and limiting between the connecting pipe 2 and the valve body connecting pipe 3, and to facilitate the rotation of the threaded sleeve 4 on the surface of the connecting pipe 2, and to facilitate the threaded connection of the threaded sleeve 4 to the surface of the threaded connecting ring 6. A first sealing ring 13 is fixedly installed on the surface of the limiting ring 8. The diameter of the first sealing ring 13 is adapted to the outer diameter of the connecting pipe 2, so as to facilitate the sealing of the connection between the valve body connecting pipe 3 and the connecting pipe 2.

[0027] It should be noted that in this embodiment, a connecting cylinder 11 is fixedly installed on the surface of the threaded sleeve 4, which is sleeved on the surface of the connecting pipe 2 and slides in contact with the surface of the connecting pipe 2. A rotating ring 12 is fixedly installed on the surface of the connecting cylinder 11 to facilitate the rotation of the threaded sleeve 4. Two fixing bolts 15 are threadedly connected to the surface of the connecting cylinder 11 and penetrate through the connecting cylinder 11. By setting the fixing bolts 15, it is easy to fix the connecting cylinder 11 and the threaded sleeve 4, which can prevent the threaded sleeve 4 from loosening during use.

[0028] The working principle of the above embodiments is as follows:

[0029] First, insert the valve body connecting pipe 3 into the inside of the connecting pipe 2, and at the same time insert the limiting rod 9 into the limiting hole 10. One end of the connecting pipe 2 is in contact with the first sealing ring 13. Then, move and rotate the threaded sleeve 4 through the rotating ring 12 of the connecting cylinder 11, and gradually screw the threaded sleeve 4 onto the threaded connecting ring 6 until the threaded sleeve 4 is in contact with the second sealing ring 14. In order to prevent the threaded sleeve 4 from loosening during use, the two fixing bolts 15 on the surface of the connecting cylinder 11 are turned so that the fixing bolts 15 can penetrate the connecting cylinder 11 and contact the surface of the connecting pipe 2, thereby ensuring the stability of the connecting cylinder 11 and the threaded sleeve 4, and thus completing the installation of the pneumatic shut-off valve body 1.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An emergency brakeable pneumatic cut-off valve, comprising a pneumatic cut-off valve body (1) and two connecting pipes (2), the pneumatic cut-off valve body (1) is fixedly installed with two valve body connecting pipes (3), characterized in that: The connecting pipe (2) and the valve body connecting pipe (3) are provided with a mounting mechanism; The mounting mechanism comprises a threaded sleeve (4) sleeved on the surface of the connecting pipe (2), the valve body connecting pipe (3) is fixedly provided with a mounting ring (5) on the surface, and the mounting ring (5) is fixedly provided with a threaded connecting ring (6) on the surface.

2. An emergency brake pneumatic shut-off valve according to claim 1, characterized in that: The connecting pipe (2) is fixedly provided with an anti-dropping ring (7) on the surface, and the anti-dropping ring (7) is located on the inner side of the threaded sleeve (4).

3. An emergency brake pneumatic shut-off valve according to claim 2, characterized in that: The valve body connecting pipe (3) is fixedly provided with a limiting ring (8) on the surface, the limiting ring (8) is fixedly provided with three limiting insertion rods (9) on the surface, the anti-dropping ring (7) is provided with three limiting insertion holes (10) on the surface, and the limiting insertion rod (9) is matched with the limiting insertion hole (10).

4. An emergency brake pneumatic shut-off valve according to claim 3, characterized in that: The limiting ring (8) is fixedly provided with a first sealing ring (13) on the surface, and the diameter of the first sealing ring (13) is matched with the outer diameter of the connecting pipe (2).

5. An emergency brake pneumatic shut-off valve according to claim 1, characterized in that: The threaded sleeve (4) is fixedly provided with a connecting cylinder (11) sleeved on the surface of the connecting pipe (2) and in sliding contact with the surface of the connecting pipe (2), and the connecting cylinder (11) is fixedly provided with a rotating ring (12) on the surface.

6. An emergency brake pneumatic shut-off valve according to claim 5, characterized in that: The connecting cylinder (11) is threadedly connected with two fixed bolts (15) penetrating through the connecting cylinder (11).

7. An emergency brake pneumatic shut-off valve according to claim 1, characterized in that: The outer diameter of the valve body connecting pipe (3) is matched with the inner diameter of the connecting pipe (2).

8. An emergency brake pneumatic shut-off valve according to claim 1, characterized in that: The mounting ring (5) is fixedly provided with a second sealing ring (14) on the surface, and the diameter of the second sealing ring (14) is matched with the outer diameter of the threaded sleeve (4).

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