Rubber tube air tightness detection device

Abstract

The utility model relates to the technical field of rubber tube air tightness detection, in particular to a rubber tube air tightness detection device. The rubber tube air tightness detection device comprises a detection seat, the detection seat is provided with an air inlet cavity and an air outlet cavity which are arranged side by side, the detection seat on the same side of the air inlet cavity and the air outlet cavity is fixedly provided with a screwed joint and a quality inspection part respectively, and the detection seat on the other side of the air inlet cavity and the air outlet cavity is provided with a tube fixing part. According to the rubber tube air tightness detection device provided by the utility model, the piston of the quality inspection component is linked with the contact piece type switch, pressure change is fed back in real time in combination with the audible and visual alarm, continuous manual observation is not needed, and the detection period is shortened; and the pipe fixing part adopts the synergistic effect of a pressing air bag and a quantity supplementing air bag, a pressing ring is driven by a threaded ring to extrude the air bags, self-adaptive pressing of the outer wall of the rubber pipe is achieved, and connection sealing failure caused by vibration is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber tube air tightness detection technical field especially relates to a rubber tube air tightness detection device. BACKGROUND

[0002] Rubber tube is widely used and is an important component of medium circulation, and bears the transmission of oil, gas and water, and if there is a poor sealing condition, it will lead to medium leakage, affect normal function, cause various faults, and medium will also pollute equipment or environment, so rubber tube must be carried out air tightness test after processing, and the traditional detection method is to fill air after immersion in water, if there is air bubble, it shows that the air tightness is poor, but there are significant defects:

[0003] 1, need to wait for water body to be calm before detection, and the time consumption is longer;

[0004] 2, manual observation is easy to be disturbed by subjective factors, and the misjudgment rate is high;

[0005] 3, the rubber tube needs drying treatment after detection, and the process complexity is increased;

[0006] In addition, the existing fixing device depends on rigid clamps, and the connection of the rubber tube is easy to cause sealing failure due to vibration of the rubber tube, so as to affect the accuracy of the detection result.

[0007] Therefore, it is necessary to provide a new rubber tube air tightness detection device to solve the above technical problems. UTILITY MODEL CONTENT

[0008] In order to solve the above technical problems, the utility model provides a rubber tube air tightness detection device.

[0009] The rubber tube air tightness detection device provided by the utility model comprises a detection seat, a gas inlet cavity and a gas outlet cavity are arranged side by side on the detection seat, threaded joints and quality inspection components are fixedly installed on the same side of the detection seat of the gas inlet cavity and the gas outlet cavity, and pipe fixing components are installed on the detection seat on the other side of the gas inlet cavity and the gas outlet cavity.

[0010] The quality inspection component comprises a fixed cylinder, the fixed cylinder is fixedly installed on the detection seat and communicates with the gas inlet cavity, the end of the fixed cylinder is fixedly installed with a sound-light alarm, the inner cylinder wall of the fixed cylinder is fixedly installed with a touch switch electrically connected with the sound-light alarm, a piston in sliding connection is installed in the fixed cylinder, and a abutting column for abutting the touch switch is fixedly installed on the piston.

[0011] The fixed pipe component comprises an outer protective pipe fixedly installed on the detection seat and communicated with the air inlet cavity or the air outlet cavity, and a sleeve pipe coaxially arranged is fixedly installed in the outer protective pipe, and a cavity between the outer protective pipe and the sleeve pipe forms a plug-in cavity structure, and a pressurizing air bag for pressing the outer wall of the rubber pipe and a compensating air bag for inflating the pressurizing air bag are installed on the outer protective pipe.

[0012] Preferably, a spring is further installed in the fixed cylinder, one end of the spring is fixedly connected with the inner cylinder wall of the fixed cylinder, and the other end of the spring is fixedly connected with the section of the abutting column of the piston.

[0013] Preferably, a pressure relief valve is fixedly installed on the fixed cylinder, and the pressure relief valve is located on the side of the fixed cylinder close to the detection seat.

[0014] Preferably, an abutting ring for abutting the piston is fixedly installed in the fixed cylinder, and the abutting ring is located between the pressure relief valve and the piston.

[0015] Preferably, an annular groove is formed in the inner wall of the outer protective pipe, the outer bag surface of the pressurizing air bag is fixedly connected with the inner groove wall of the annular groove, the compensating air bag is installed in the annular groove formed in the outer pipe wall of the outer protective pipe, the bag surface of the compensating air bag close to the detection seat is fixedly connected with the bottom groove wall of the annular groove, and the compensating air bag is communicated with the pressurizing air bag through a pipe.

[0016] Preferably, a threaded segment is formed in the outer pipe wall of the outer protective pipe, a threaded ring is sleeved on the threaded segment and connected through threads, a rotating ring is installed on the inner ring surface of the threaded ring and connected through rotation, a plurality of middle connecting plates are fixedly installed on the rotating ring and distributed in a ring shape, and the other end of the middle connecting plate is fixedly arranged with a pressurizing ring, the pressurizing ring is sleeved on the outer protective pipe and fixedly connected with the bag surface of the compensating air bag away from the detection seat.

[0017] Preferably, a support is fixedly installed on the bottom of the detection seat.

[0018] Compared with the related art, the rubber pipe air tightness detection device has the following beneficial effects:

[0019] The piston of the quality inspection component is linked with the touch piece type switch, the sound and light alarm is used to feed back the pressure change in real time, manual continuous observation is not needed, the detection period is shortened, the fixed pipe component uses the pressurizing air bag and the compensating air bag to cooperate, the pressurizing ring is driven to extrude the air bag through the threaded ring, the outer wall of the rubber pipe is self-adaptively pressed, and the connection sealing failure caused by vibration is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure diagram of one preferred embodiment of the rubber pipe air tightness detection device is shown.

[0021] Figure 2 Structure diagram of a preferred embodiment of the rubber tube air tightness detection device provided by the utility model;

[0022] Figure 3 For Figure 1 Structure diagram of the detection seat shown in the figure;

[0023] Figure 4 For Figure 1 Structure diagram of the quality inspection component shown in the figure;

[0024] Figure 5 For Figure 2 Structure diagram of the pipe fixing component shown in the figure.

[0025] Marked in the figure: 1, detection seat; 1a, air inlet cavity; 1b, air outlet cavity; 11, support; 2, threaded joint; 3, quality inspection component; 31, fixed cylinder; 32, audible and visual alarm; 321, touch switch; 33, piston; 331, abutting column; 34, spring; 35, pressure relief valve; 36, abutting ring; 4, pipe fixing component; 41, outer protective tube; 41a, annular groove; 411, threaded segment; 42, inner sleeve; 43, compression air bag; 44, supplementary air bag; 45, threaded ring; 451, rotating ring; 46, middle connecting plate; 47, compression ring; 4a, insertion cavity. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0027] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0028] Please refer to Figures 1 to 5 The utility model embodiment provides a kind of rubber tube air tightness detection device, the rubber tube air tightness detection device includes detection seat 1, quality inspection component 3 and pipe fixing component 4, and detection seat 1 is equipped with and is arranged in parallel air inlet cavity 1a and air outlet cavity 1b, air inlet cavity 1a and air outlet cavity 1b same side detection seat 1 is respectively fixedly installed with threaded joint 2 and quality inspection component 3, and air inlet cavity 1a and air outlet cavity 1b other side detection seat 1 is all installed with pipe fixing component 4, utilize pipe fixing component 4 and fix and seal the both ends of the rubber tube detected, utilize quality inspection component 3 to detect whether the rubber tube air tightness is intact.

[0029] In the embodiment of the utility model, please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 5The fixed pipe component 4 comprises an outer sleeve 41 fixedly installed on the detection seat 1 and communicated with the air inlet cavity 1a or the air outlet cavity 1b, and a coaxially arranged inner sleeve 42 fixedly installed in the outer sleeve 41, and a cavity between the outer sleeve 41 and the inner sleeve 42 forms a plug-in cavity 4a structure, and the outer sleeve 41 is provided with a press-fit air bag 43 for pressing the outer wall of the rubber pipe and a compensating air bag 44 for inflating the press-fit air bag 43;

[0030] The inner wall of the outer sleeve 41 is provided with an annular groove 41a, the outer bag surface of the press-fit air bag 43 is fixedly connected with the inner groove wall of the annular groove 41a, and the compensating air bag 44 is installed in the annular groove formed on the outer wall of the outer sleeve 41, the bag surface of the compensating air bag 44 close to the detection seat 1 is fixedly connected with the bottom groove wall of the annular groove, and the compensating air bag 44 is communicated with the press-fit air bag 43 through a pipe, the outer wall of the outer sleeve 41 is provided with a threaded segment 411, a threaded ring 45 is sleeved on the threaded segment 411, the inner ring surface of the threaded ring 45 is provided with a rotating ring 451 rotatably connected, a plurality of middle connecting plates 46 are fixedly installed on the rotating ring 451, and the other end of the middle connecting plate 46 is fixedly provided with a press-fit ring 47 sleeved on the outer sleeve 41 and fixedly connected with the bag surface of the compensating air bag 44 away from the detection seat 1.

[0031] It should be noted that when the air tightness of the rubber pipe is detected, one end of the rubber pipe is inserted into the plug-in cavity 4a structure between the outer sleeve 41 and the inner sleeve 42, then the threaded ring 45 is rotated to drive the threaded ring 45 to move towards the detection seat 1 along the threaded segment 411, so that the press-fit ring 47 is driven by the threaded ring 45 through the middle connecting plate 46 to press the compensating air bag 44, and the gas in the compensating air bag 44 flows into the press-fit air bag 43, so that the press-fit air bag 43 expands rapidly and fills the gap between the outer sleeve 41 and the outer wall of the rubber pipe and firmly presses the rubber pipe, so that the rubber pipe is stably and firmly inserted into the plug-in cavity 4a between the outer sleeve 41 and the inner sleeve 42. Since the expanded press-fit air bag 43 is an elastic structure, the risk of connection failure or sealing failure between the rubber pipe and the outer sleeve 41 due to vibration of the rubber pipe when the rubber pipe is inflated is reduced in structure, and the problem of air leakage at the connection of the rubber pipe and the failure of the air tightness detection of the rubber pipe is effectively avoided.

[0032] It should be further noted that after the detection is completed, the threaded ring 45 is rotated in the opposite direction, so that the compensating air bag 44 is stretched to form a negative pressure, and the gas in the press-fit air bag 43 flows back into the compensating air bag 44, so that the press-fit air bag 43 is not pressed against the rubber pipe, and the rubber pipe is easily pulled out of the outer sleeve 41.

[0033] Further, the bottom of the detection seat 1 is fixedly provided with a support 11 to facilitate the installation of the detection seat 1.

[0034] Wherein, in order to avoid long-term inflation and deflation easily lead to compression bladder 43 and the aging of the amount of air bladder 44, affect the sealing performance problem, compression bladder 43 and the amount of air bladder 44 are made of high elasticity silica gel or polyurethane composite material, and wear-resistant coating is additionally arranged in the annular groove 41a, thereby prolonging the service life.

[0035] In the embodiment of the utility model, please refer to Figure 1 、 Figure 2 、 Figure 3 And Figure 4 , the quality inspection component 3 includes a fixed cylinder 31 fixedly installed on the detection seat 1 and communicated with the air inlet cavity 1a, and the end of the fixed cylinder 31 is fixedly installed with a sound-light alarm 32, the inner cylinder wall of the fixed cylinder 31 is fixedly installed with a touch switch 321 electrically connected with the sound-light alarm 32, and the fixed cylinder 31 is installed with a slidingly connected piston 33, the piston 33 is fixedly installed with an abutting column 331 for closing and opening the touch switch 321, and the fixed cylinder 31 is further installed with a spring 34, one end of the spring 34 is fixedly connected with the inner cylinder wall of the fixed cylinder 31, and the other end of the spring 34 is fixedly connected with the section of the abutting column 331 of the piston 33.

[0036] It should be noted that when detecting the air tightness of the rubber tube, the output pipe of the inflation pump is connected with the threaded joint 2 (the output pipe of the inflation pump is provided with a valve), and the two ends of the rubber tube are fixedly connected with the two groups of pipe fixing components 4, then the inflation pump is started to inflate the rubber tube, when the air pressure in the rubber tube increases, at this time, the tail of the fixed cylinder 31 slides and compresses the spring 34 under the pressure of the gas, until the abutting column 331 abuts against the touch switch 321, the sound-light alarm 32 operates, then the valve on the output pipe is closed and the inflation pump is stopped, and the rubber tube is placed for 8-15 minutes, if the sound-light alarm 32 is in the running state during the period, it indicates that the rubber tube is in good condition and does not leak, if the air tightness of the rubber tube is poor, the air pressure in the rubber tube decreases after the rubber tube leaks, so that the piston 33 slides to the detection seat 1 under the elastic force of the spring 34, so that the abutting column 331 no longer abuts against the touch switch 321, so that the sound-light alarm 32 stops running.

[0037] Further, the fixed cylinder 31 is fixedly installed with a pressure relief valve 35, and the pressure relief valve 35 is located on the side of the fixed cylinder 31 close to the detection seat 1, after the detection is completed, the pressure relief valve 35 is started to make the gas in the rubber tube quickly exhaust and relieve pressure.

[0038] Further, the fixed cylinder 31 is fixedly installed with an abutting ring 36 for abutting against the piston 33, and the abutting ring 36 is located between the pressure relief valve 35 and the piston 33, so as to avoid the problem that the piston 33 slides through the pressure relief valve 35 and the pressure relief valve 35 cannot relieve pressure.

[0039] The application is linked with the touch switch 321 through the piston 33 of the quality inspection component 3, and the sound and light alarm 32 is combined to feed back the pressure change in real time, so that the detection cycle is shortened without artificial continuous observation; and the fixed pipe component 4 adopts the cooperation of the pressing air bag 43 and the supplementary air bag 44, the pressing ring 47 is driven to extrude the air bag through the threaded ring 45, the outer wall of the rubber pipe is self-adaptively pressed, and the connection sealing failure caused by vibration is avoided.

[0040] The circuit and the control involved in the utility model are prior art, and too much repetition is not performed here.

[0041] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent structures or equivalent process transformations made by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A hose air tightness testing device characterized by, The utility model provides a quality inspection device for rubber tube, including detection seat (1), the detection seat (1) is equipped with air inlet cavity (1a) and exhaust cavity (1b) side by side, the air inlet cavity (1a) and exhaust cavity (1b) same side detection seat (1) is fixedly installed with screw joint (2) and quality inspection part (3) respectively, and the air inlet cavity (1a) and exhaust cavity (1b) other side detection seat (1) all are installed with fixed pipe part (4); The quality inspection part (3) includes a fixed cylinder (31) fixedly installed on the detection seat (1) and communicated with the air inlet cavity (1a), and the end of the fixed cylinder (31) is fixedly installed with a sound and light alarm (32), the inner cylinder wall of the fixed cylinder (31) is fixedly installed with a touch switch (321) electrically connected with the sound and light alarm (32), and the fixed cylinder (31) is installed with a slidingly connected piston (33), the piston (33) is fixedly installed with a abutting column (331) for closing and opening the touch switch (321). The fixed pipe part (4) includes an outer protective tube (41) fixedly installed on the detection seat (1) and communicated with the air inlet cavity (1a) or the exhaust cavity (1b), and the outer protective tube (41) is fixedly installed with a coaxially arranged inner sleeve (42) in the cavity, the cavity between the outer protective tube (41) and the inner sleeve (42) forms a plug-in cavity (4a) structure, and the outer protective tube (41) is installed with a compression air bag (43) for compressing the outer wall of the rubber tube and a supplementary air bag (44) for inflating the compression air bag (43).

2. The hose air tightness testing device according to claim 1, wherein The fixed cylinder (31) is further installed with a spring (34), one end of the spring (34) is fixedly connected with the inner cylinder wall of the fixed cylinder (31), and the other end of the spring (34) is fixedly connected with the section of the piston (33) installed with the abutting column (331).

3. The hose air tightness testing device according to claim 2, wherein The fixed cylinder (31) is fixedly installed with a pressure relief valve (35), and the pressure relief valve (35) is located on the side of the fixed cylinder (31) close to the detection seat (1).

4. The hose air tightness testing device according to claim 3, wherein The fixed cylinder (31) is fixedly installed with an abutting ring (36) for abutting the piston (33), and the abutting ring (36) is located between the pressure relief valve (35) and the piston (33).

5. The hose air tightness testing device according to claim 1, wherein The inner wall of the outer protective tube (41) is provided with an annular groove (41a), the outer surface of the compression air bag (43) is fixedly connected with the inner groove wall of the annular groove (41a), the supplementary air bag (44) is installed in the annular groove formed on the outer tube wall of the outer protective tube (41), the surface of the supplementary air bag (44) close to the detection seat (1) is fixedly connected with the bottom groove wall of the annular groove, and the supplementary air bag (44) is communicated with the compression air bag (43) through a conduit.

6. The hose air tightness testing device according to claim 5, wherein The outer tube wall of the outer protective tube (41) is provided with a threaded section (411), a threaded ring (45) is sleeved on the threaded section (411) in a threaded connection, a rotating ring (451) is mounted on the inner ring surface of the threaded ring (45) in a rotating connection, a plurality of middle connecting plates (46) are fixedly mounted on the rotating ring (451) in a ring distribution, and a press-fit ring (47) is fixedly arranged at the other end of the middle connecting plate (46) and is sleeved on the outer protective tube (41) and fixedly connected with the bladder surface of the compensation air bag (44) away from the detection seat (1).

7. The hose air tightness testing device according to claim 1, wherein The bottom of the detection seat (1) is fixedly provided with a support (11).

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