Pneumatic quick connector for safe exhaust and pressure relief

Abstract

The utility model relates to the technical field of pneumatic quick connectors for safe exhaust and pressure relief, and discloses a pneumatic quick connector for safe exhaust and pressure relief, which comprises a main channel, an air inlet is arranged at the left end of the main channel, an air outlet is arranged at the right end of the main channel, and an exhaust channel is fixedly mounted at the bottom of the main channel. During air intake, the first arc-shaped disc is pushed leftwards, the sliding block slides along the sliding groove, the connecting disc and the sliding rod are driven to move, the spring is stretched, the main channel air inlet is opened, air flows to the air outlet, during air exhaust and pressure relief, the first arc-shaped disc is loosened, the spring is reset to close the main channel, the pull block is pulled, and the connecting rod slides out of the fixing disc under the action of the elastic piece; according to the design, switching of the air inlet function and the pressure relief function is achieved through simple operation, opening and closing of the channels are accurately controlled through linkage of components, accidental release of the high-pressure gas can be effectively avoided, and the use safety and operation convenience of the pneumatic quick connector are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of safe exhaust pressure relief pneumatic quick coupling, especially to a safe exhaust pressure relief pneumatic quick coupling. BACKGROUND

[0002] The pneumatic quick coupling is a device for connecting and disconnecting the pipeline in the pneumatic system, which has the characteristics of quick connection, reliable sealing, simple structure, convenient use, etc., and is widely used in the pneumatic transmission system in industrial production.

[0003] The existing safe exhaust pressure relief pneumatic quick coupling may have the problems that the air inlet and pressure relief functions cannot be switched by simple operation, and it is difficult to precisely control the opening and closing of the channel by component linkage, which may cause high operation complexity in actual use, resulting in a long connection or pressure relief process. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a safe exhaust pressure relief pneumatic quick coupling to solve the problems that the air inlet and pressure relief functions cannot be switched by simple operation, and it is difficult to precisely control the opening and closing of the channel by component linkage, which may cause high operation complexity in actual use, resulting in a long connection or pressure relief process.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a safe exhaust pressure relief pneumatic quick coupling, comprising a main channel, the left end of the main channel is an air inlet, the right end of the main channel is an air outlet, the bottom of the main channel is fixedly installed with an exhaust channel, the lower end of the exhaust channel is an exhaust port, the inside of the main channel and the exhaust channel is provided with an exhaust pressure relief assembly, the exhaust pressure relief assembly comprises a first arc-shaped disc, a spring, a pull block, an elastic piece and a second arc-shaped disc, the bottom of the first arc-shaped disc is fixedly connected with a sliding block, a sliding groove is formed in the outer wall of the main channel, the sliding block is slidingly connected in the inside of the sliding groove, the first arc-shaped disc is connected with a connecting disc and a sliding rod through a connecting block, the inner wall of the air outlet is fixedly installed with a disc, the pull block is connected with a connecting rod through a connecting piece, and the inner wall of the exhaust channel is fixedly installed with a fixed disc.

[0006] As a preferred scheme, a first track groove is formed in the top of the main channel, the lower surface of the first arc-shaped disc is fitted with the upper surface of the main channel, the connecting block is fixedly installed on the lower surface of the first arc-shaped disc, the outer wall of the connecting block is slidingly connected with the inner wall of the first track groove, and the surface of the connecting disc is fixedly connected with the bottom of the connecting block.

[0007] As a preferred scheme, the slide rod is fixedly installed on the right outer wall of the connecting disc, the outer wall of the slide rod is slidably connected to the inner wall of the disc, one end of the spring is fixedly connected to the right outer wall of the connecting disc, and the other end of the spring is fixedly connected to the left outer wall of the disc.

[0008] As a preferred scheme, a second track groove is formed in the outer wall of the exhaust passage, the inner wall of the second arc-shaped disc is attached to the outer wall of the exhaust passage, the pull block is fixedly installed in the second arc-shaped disc, the outer wall of the pull block is slidably connected to the inner wall of the second track groove, the left end of the pull block is fixedly connected to the outer wall of the connecting piece, the connecting rod is fixedly installed on the upper surface of the connecting piece, the outer wall of the connecting rod is slidably connected to the inner wall of the fixed disc, one end of the elastic piece is fixedly connected to the upper surface of the connecting piece, and the other end of the elastic piece is fixedly connected to the lower surface of the fixed disc.

[0009] As a preferred scheme, the outer portion of the main passage is provided with an anti-skid assembly, the anti-skid assembly comprises a threaded disc and a silica gel anti-skid sleeve, an adaptive groove is formed in the outer wall of the main passage, and a threaded groove is formed in the outer wall of the main passage and located to the left of the adaptive groove.

[0010] As a preferred scheme, the inner wall of the threaded disc is threadedly connected to the threaded groove, the silica gel anti-skid sleeve is arranged on the surface of the adaptive groove, and a plurality of circumferentially distributed anti-skid lines are formed in the outer wall of the silica gel anti-skid sleeve.

[0011] The technical effects and advantages of the utility model are as follows:

[0012] 1. The exhaust pressure relief assembly is provided, when air is admitted, the first arc-shaped disc is pushed to the left, the sliding block slides along the sliding groove, the connecting disc and the slide rod are moved, the spring is stretched, the main passage inlet is opened, the gas flows to the outlet, when the exhaust pressure is relieved, the first arc-shaped disc is loosened, the spring is reset to close the main passage, the connecting rod slides out of the fixed disc under the action of the elastic piece, and the high-pressure gas is discharged through the exhaust passage.

[0013] 2. The anti-skid assembly is provided, the silica gel anti-skid sleeve can generate a large initial friction force when contacting the hand, the circumferentially distributed anti-skid lines on the outer wall of the silica gel anti-skid sleeve further increase the surface roughness, the concave-convex engagement of the lines enhances the holding stability, the threaded disc can form an axial compression force on the silica gel anti-skid sleeve after being screwed through the threaded groove, so that the silica gel anti-skid sleeve is tightly attached to the outer wall of the main passage, the anti-skid failure caused by loosening is avoided, and the combination of the three can improve the anti-skid effect. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 is a whole part structure schematic view of the utility model;

[0016] Figure 3 is a exhaust pressure relief assembly part structure schematic view one of the utility model;

[0017] Figure 4 is Figure 5 a part structure schematic view;

[0018] Figure 5 is a exhaust pressure relief assembly part structure schematic view two of the utility model;

[0019] Figure 6 is a anti-skid assembly part structure development schematic view of the utility model.

[0020] In the drawing: 1, main channel;2, exhaust passage;3, gas outlet;4, exhaust pressure relief assembly;401, first arc-shaped disc;402, sliding block;403, sliding groove;404, connecting block;405, connecting disc;406, sliding rod;407, spring;408, disc;409, pull block;410, connecting piece;411, connecting rod;412, fixed disc;413, elastic member;414, second arc-shaped disc;415, first track groove;416, second track groove;5, anti-skid assembly;501, adaptive slot;502, thread groove;503, thread disc;504, silica gel anti-skid sleeve;505, anti-skid pattern. DETAILED DESCRIPTION

[0021] 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, rather than 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 protection scope of the utility model.

[0022] Please refer to the drawings of the embodiments of the utility model Figure 1 - the drawings of the embodiments of the utility model Figure 5The utility model provides a kind of safe exhaust pressure relief pneumatic quick coupling, including main channel 1, the left end of main channel 1 is air inlet, the right end of main channel 1 is outlet 3, the bottom of main channel 1 is fixedly installed with exhaust passage 2, the lower end of exhaust passage 2 is exhaust port, exhaust pressure relief assembly 4 is arranged in the inside of main channel 1 and exhaust passage 2, exhaust pressure relief assembly 4 includes first arc plate 401, spring 407, pull block 409, elastic member 413 and second arc plate 414, the bottom of first arc plate 401 is fixedly connected with sliding block 402, sliding slot 403 is set up on the outer wall of main channel 1, sliding block 402 is slidably connected in the inside of sliding slot 403, first arc plate 401 is connected with connecting disc 405 and slide rod 406 by connecting block 404, disc 408 is fixedly installed at the inner wall of outlet 3, pull block 409 is connected with connecting rod 411 by connecting piece 410, fixed disc 412 is fixedly installed on the inner wall of exhaust passage 2.

[0023] Quick coupling is composed of main channel 1 and exhaust passage 2, main channel 1 is as the main flow path of gas, connects gas source and gas equipment, left end is air inlet, right end is outlet 3, exhaust passage 2 safely discharges high-pressure gas in main channel 1 to outside when needing pressure relief.

[0024] The top of main channel 1 is provided with first trajectory slot 415, the lower surface of first arc plate 401 is attached to the upper surface of main channel 1, connecting block 404 is fixedly installed on the lower surface of first arc plate 401, the outer wall of connecting block 404 is slidably connected on the inner wall of first trajectory slot 415, the surface of connecting disc 405 is fixedly connected on the bottom of connecting block 404, slide rod 406 is fixedly installed on the right outer wall of connecting disc 405, the outer wall of slide rod 406 is slidably connected on the inner wall of disc 408, one end of spring 407 is fixedly connected on the right outer wall of connecting disc 405, the other end of spring 407 is fixedly connected on the left outer wall of disc 408.

[0025] First arc plate 401 is mainly to control the opening and closing state of main channel 1, by sliding block 402 sliding in sliding slot 403, drive first arc plate 401 moves along the outer wall of main channel 1, when moving left, spring 407 will stretch, so as to open main channel 1, when moving right, spring 407 resets, closes main channel 1.

[0026] A second track groove 416 is formed in the outer wall of the exhaust passage 2, the inner wall of the second arc-shaped disc 414 is attached to the outer wall of the exhaust passage 2, the pull block 409 is fixedly installed inside the second arc-shaped disc 414, the outer wall of the pull block 409 is slidingly connected to the inner wall of the second track groove 416, the left end of the pull block 409 is fixedly connected to the outer wall of the connecting piece 410, the connecting rod 411 is fixedly installed on the upper surface of the connecting piece 410, the outer wall of the connecting rod 411 is slidingly connected to the inner wall of the fixed disc 412, one end of the elastic piece 413 is fixedly connected to the upper surface of the connecting piece 410, and the other end of the elastic piece 413 is fixedly connected to the lower surface of the fixed disc 412.

[0027] The second arc-shaped disc 414 serves as a sealing valve plate of the exhaust passage 2, when the pull block 409 moves downward, the second arc-shaped disc 414 drives the connecting rod 411 to move downward, the pressure relief passage is opened, after the external force disappears, the elastic piece 413 pulls the pull block 409 to reset, and the exhaust port is resealed.

[0028] Specifically, by arranging the exhaust pressure relief assembly 4, when air is admitted, the first arc-shaped disc 401 is pushed to the left, the sliding block 402 slides along the sliding groove 403, drives the connecting disc 405 to move synchronously with the sliding rod 406, and stretches the spring 407, so that the air inlet of the main passage 1 is immediately opened, and the gas flows smoothly to the air outlet 3. When the exhaust pressure is relieved, the first arc-shaped disc 401 is loosened, the spring 407 is reset to close the main passage 1, the pull block 409 is pulled, the connecting rod 411 slides out of the inner wall of the fixed disc 412 under the action of the elastic piece 413, and the high-pressure gas is quickly discharged through the exhaust passage 2. The design realizes the switching of air admission and pressure relief functions through simple push-pull operation, accurately controls the opening and closing of the passage through the linkage of the sliding block 402, the spring 407, the pull block 409 and other components, effectively avoids the risk of accidental release of high-pressure gas, and significantly improves the use safety and operation convenience of the pneumatic quick connector.

[0029] Please refer to the accompanying Figure 1 , the accompanying Figure 2 and the accompanying Figure 6 , the outer wall of the main passage 1 is provided with an anti-skid assembly 5, the anti-skid assembly 5 comprises a threaded disc 503 and a silica gel anti-skid sleeve 504, a matching groove 501 is formed in the outer wall of the main passage 1, a threaded groove 502 is formed in the outer wall of the main passage 1 and located to the left of the matching groove 501, the inner wall of the threaded disc 503 is threadedly connected to the threaded groove 502, the silica gel anti-skid sleeve 504 is arranged on the surface of the matching groove 501, and a plurality of circumferentially distributed anti-skid lines 505 are formed in the outer wall of the silica gel anti-skid sleeve 504.

[0030] The matching groove 501 mainly provides installation and positioning space for the silica gel anti-skid sleeve 504, ensures that the silica gel anti-skid sleeve 504 is accurately fixed at the specified position of the outer wall of the main passage 1, limits the axial movement of the silica gel anti-skid sleeve 504, makes the silica gel anti-skid sleeve 504 stably attached to the surface of the connector, and avoids displacement or falling of the silica gel anti-skid sleeve 504 due to operation friction.

[0031] Specifically, when the silica gel anti-skid sleeve 504 is in contact with the hand, a large initial friction force is generated due to the material characteristics of the silica gel anti-skid sleeve 504, the anti-skid lines 505 distributed on the outer wall of the silica gel anti-skid sleeve 504 further improve the surface roughness, the concave-convex structure of the anti-skid lines 505 enhances the holding stability, and the axial compression force is applied to the silica gel anti-skid sleeve 504 after the threaded disc 503 is screwed into the threaded groove 502, so that the silica gel anti-skid sleeve 504 is tightly attached to the outer wall of the main channel 1, and the anti-skid failure caused by loosening and displacement during use is prevented; the three work together to significantly improve the anti-skid performance; even in complex environments such as oil stains and moisture, the operator can still hold stably, and the risk of slipping during plugging and unplugging is effectively reduced.

[0032] The utility model discloses a safe exhaust pressure relief pneumatic quick coupling, first, when needing to intake, the operator pushes first arc-shaped disc 401 to left, at this moment, the slider 402 of first arc-shaped disc 401 bottom along the slide groove 403 of main channel 1 outer wall slide, simultaneously, first arc-shaped disc 401 drive connecting disc 405 and slide bar 406 synchronous left movement through connecting block 404, slide bar 406 slide in the disc 408 of gas outlet 3 inner wall, in this process, connecting disc 405 stretch spring 407, make slide bar 406 from the inside of disc 408 slide, thereby open intake passage, compressed air enters from the air inlet of main channel 1 left end, through main channel 1 flow to the gas outlet 3 of right end, convey to the gas equipment, when the system needs to exhaust, the operator first loosens first arc-shaped disc 401, under the reset elastic force of spring 407, connecting disc 405 drive slide bar 406 and first arc-shaped disc 401 right movement, slide bar 406 will fill disc 408, thereby close main channel 1, prevent gas continue to enter, subsequently, the operator pulls pull block 409, pull block 409 drive connecting piece 410 and connecting rod 411 downward movement, connecting rod 411 slide in the fixed disc 412 of exhaust passage 2 inner wall, simultaneously, second arc-shaped disc 414 also will downward movement, until connecting rod 411 from the inside of fixed disc 412 slide, thereby open pressure relief passage, the high pressure gas remaining in main channel 1 is discharged from the exhaust port of lower end through exhaust passage 2, realizes safe pressure relief, when pressure relief is completed, loosens pull block 409, and elastic part 413 pulls connecting piece 410, makes pull block 409 and second arc-shaped disc 414 reset, and connecting rod 411 also will slide into the inside of fixed disc 412 again, secondly, the worker can install silica gel anti-skid sleeve 504 on the inner wall of adaptive slot 501, then manually rotate threaded disc 503, through the threaded connection of threaded disc 503 and threaded groove 502, rotate threaded disc 503 to the direction of silica gel anti-skid sleeve 504, after screwing, axial compression force can be applied to silica gel anti-skid sleeve 504, so that it is tightly attached to main channel 1, and displacement during use is prevented.

[0033] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A pneumatic quick-release connector for safe venting and depressurization, comprising a main channel (1), wherein the left end of the main channel (1) is an air inlet, the right end of the main channel (1) is an air outlet (3), and an exhaust channel (2) is fixedly installed at the bottom of the main channel (1), wherein the lower end of the exhaust channel (2) is an exhaust port, characterized in that: The main channel (1) and the exhaust channel (2) are equipped with an exhaust pressure relief assembly (4). The exhaust pressure relief assembly (4) includes a first arc-shaped disk (401), a spring (407), a pull block (409), an elastic element (413), and a second arc-shaped disk (414). A slider (402) is fixedly connected to the bottom of the first arc-shaped disk (401). A groove (403) is provided on the outer wall of the main channel (1). The slider (402) is slidably connected to the inside of the groove (403). The first arc-shaped disk (401) is connected to a connecting disk (405) and a sliding rod (406) through a connecting block (404). A disc (408) is fixedly installed on the inner wall of the air outlet (3). The pull block (409) is connected to a connecting rod (411) through a connecting element (410). A fixed disk (412) is fixedly installed on the inner wall of the exhaust channel (2).

2. The pneumatic quick-release coupling for safe venting and depressurization according to claim 1, characterized in that: The top of the main channel (1) is provided with a first track groove (415), the lower surface of the first arc-shaped disk (401) is in contact with the upper surface of the main channel (1), the connecting block (404) is fixedly installed on the lower surface of the first arc-shaped disk (401), the outer wall of the connecting block (404) is slidably connected to the inner wall of the first track groove (415), and the surface of the connecting disk (405) is fixedly connected to the bottom of the connecting block (404).

3. The pneumatic quick-release coupling for safe venting and depressurization according to claim 2, characterized in that: The slide rod (406) is fixedly installed on the right outer wall of the connecting plate (405), and the outer wall of the slide rod (406) is slidably connected to the inner wall of the disc (408). One end of the spring (407) is fixedly connected to the right outer wall of the connecting plate (405), and the other end of the spring (407) is fixedly connected to the left outer wall of the disc (408).

4. The pneumatic quick-release coupling for safe venting and depressurization according to claim 3, characterized in that: The outer wall of the exhaust channel (2) is provided with a second track groove (416). The inner wall of the second arc-shaped disk (414) is in contact with the outer wall of the exhaust channel (2). The pull block (409) is fixedly installed inside the second arc-shaped disk (414). The outer wall of the pull block (409) is slidably connected to the inner wall of the second track groove (416). The left end of the pull block (409) is fixedly connected to the outer wall of the connector (410). The connecting rod (411) is fixedly installed on the upper surface of the connector (410). The outer wall of the connecting rod (411) is slidably connected to the inner wall of the fixed disk (412). One end of the elastic member (413) is fixedly connected to the upper surface of the connector (410). The other end of the elastic member (413) is fixedly connected to the lower surface of the fixed disk (412).

5. A pneumatic quick-release coupling for safe venting and depressurization according to claim 4, characterized in that: The main channel (1) is provided with an anti-slip component (5) on its exterior. The anti-slip component (5) includes a threaded disc (503) and a silicone anti-slip sleeve (504). An adapter groove (501) is provided on the outer wall of the main channel (1), and a threaded groove (502) is provided on the outer wall of the main channel (1) to the left of the adapter groove (501).

6. A pneumatic quick-release coupling for safe venting and depressurization according to claim 5, characterized in that: The inner wall of the threaded disc (503) is threaded to the threaded groove (502), the silicone anti-slip sleeve (504) is disposed on the surface of the adapter groove (501), and multiple sets of circumferentially distributed anti-slip patterns (505) are formed on the outer wall of the silicone anti-slip sleeve (504).

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