CN215598632U - Composite hose leakage detection device - Google Patents

Abstract

The utility model provides a composite hose leakage detection device which comprises a support, wherein the support comprises an upper plate and a lower plate, a transparent water tank is placed on the lower plate, a first support plate is arranged on the water tank, and a plurality of bayonets for fixing hoses to be detected are arranged on the first support plate; the air cylinder is installed on the upper plate, an output shaft of the air cylinder penetrates through the upper plate and vertically faces downwards, a second supporting plate is fixedly connected to the tail end of the output shaft of the air cylinder, a rigid air pipe is fixedly arranged on the second supporting plate, a plurality of air needles are vertically arranged on the rigid air pipe downwards at intervals, and each air needle corresponds to one bayonet on the first supporting plate right below the air needle. The utility model has the advantages of simple device and simple and convenient leak detection operation, and can detect all possible leakage points of the hose at one time.

Description

Composite hose leakage detection device

Technical Field

The utility model particularly relates to a composite hose leakage detection device, and belongs to the technical field of hose leakage detection.

Background

The flexible pipe is used as a packaging container and widely applied to packaging products such as ointment products, cosmetics and the like. The packaging hose mainly comprises an aluminum hose, an aluminum-plastic composite hose, a pure plastic composite hose and the like, wherein the aluminum-plastic composite hose has the dual characteristics of metal and plastic, can not rebound after extrusion, and is widely applied to ointment packaging, and the common plastic composite hose is widely applied to the field of cosmetics. No leakage is the most essential requirement for any type of hose, so that the leakage characteristics and compressive strength of the hose need to be checked or spot checked before packaging. The manufacturing process of the composite hose is basically as follows: the composite film is curled into a cylinder shape, welding is carried out at the lap joint to form a middle welding line, then a shoulder part and a thread head are formed at one end of the cylinder in an injection molding mode, the packaged object is injected into the circular through hole, and the tail part of the cylinder is sealed to form a tail sealing part. As can be seen from the package structure of the hose shown in FIG. 2, the major leakage points include the tube body 51, the middle weld 52, the tail seal 53, and the injection molded shoulder 54. Leakage detection is therefore required at these four locations of the hose. However, in the prior art, the leakage detection of the hose can only detect 1-3 leakage points generally, and cannot detect all four leakage points at one time, so that the possibility of leakage detection exists.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a composite hose leakage detection device, aiming at solving the problem of detection leakage defects of the existing detection device.

The technical scheme of the utility model is as follows: a composite hose leakage detection device comprises a support, wherein the support comprises an upper plate and a lower plate, a transparent water tank is placed on the lower plate, a first supporting plate is arranged on the water tank, and a plurality of bayonets for fixing a hose to be detected are arranged on the first supporting plate; the air cylinder is installed on the upper plate, an output shaft of the air cylinder penetrates through the upper plate and vertically faces downwards, a second supporting plate is fixedly connected to the tail end of the output shaft of the air cylinder, a rigid air pipe is fixedly arranged on the second supporting plate, a plurality of air needles are vertically arranged on the rigid air pipe downwards at intervals, and each air needle corresponds to one bayonet on the first supporting plate right below the air needle.

Furthermore, a left guide rod and a right guide rod are arranged between the upper plate and the lower plate, and the left end and the right end of the second supporting plate are respectively connected with the left guide rod and the right guide rod in a sliding mode.

Furthermore, the bottom of the transparent water tank is also provided with a plurality of transparent inner grooves for receiving the hose to be detected, and each inner groove corresponds to a bayonet on the first supporting plate right above the inner groove.

Furthermore, a pressure gauge is connected to the rigid air pipe.

Has the advantages that: according to the utility model, the transparent water tank is internally provided with the inner groove and the first support plate with the bayonet, a threaded head can be clamped upwards at the opening of the hose to be detected, then the hose is fixed by screwing the pipe cap, then water is injected into the water tank to the shoulder part of the hose, the cylinder is started to press the second support plate downwards, the second support plate drives the rigid air pipe and the air needle to move downwards, the air needle penetrates through the pipe cap to enter the interior of the hose, finally compressed air is introduced into the rigid air pipe and pressure is maintained, whether bubbles are generated around the hose or not is observed, whether the leakage position of the hose leaks or not can be judged, and the size of leakage amount, the pressure resistant strength grade of the hose and the like can be judged according to the pressure change condition of the pressure gauge within a certain time. Therefore, the utility model has the advantages of simple device and simple and convenient leak detection operation, and can detect all possible leakage points of the hose at one time.

Drawings

FIG. 1 is a schematic diagram of the composition structure of the present invention.

FIG. 2 is a schematic view of the structure of a hose to be inspected.

The labels in the figure are: the test tube comprises a support 1, a transparent water tank 2, an air cylinder 3, a rigid air pipe 4, a hose to be tested 5, a lower plate 11, an upper plate 12, a right guide rod 13, a left guide rod 14, a first support plate 21, a transparent inner groove 22, an output shaft 31, a second support plate 32, a pressure gauge 41, an air needle 42, a tube body 51, a welding line in the tube body 52, a tail sealing part 53, a shoulder part 54, a thread head 55, a special nut 56 for detection and a rubber top wall 561.

Detailed Description

The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the utility model by referring to the description text.

As shown in fig. 1, the composite hose leakage detection device comprises a support 1, wherein the support 1 comprises an upper plate 12 and a lower plate 11 which are arranged in parallel at an interval from top to bottom, a left guide rod 14 and a right guide rod 13 are further arranged between the upper plate and the lower plate, a cylinder 3 is mounted on the upper plate 1, an output shaft 31 of the cylinder 3 penetrates through the upper plate to be vertically downward, a second support plate 32 is fixedly connected to the tail end of the cylinder output shaft 3, the left end and the right end of the second support plate 32 are respectively in sliding connection with the left guide rod 14 and the right guide rod 13, and the left guide rod 14 and the right guide rod 13 provide guidance for the up-and-down movement of the second support plate 32. A rigid air pipe 4 is fixedly arranged on the second support plate 32, a plurality of rigid air needles 42 are vertically and downwardly uniformly arranged on the rigid air pipe 4 at intervals, three air needles are shown in the figure, the rigid air pipe can be a steel pipe, the rigid air needles can be steel needles, compressed air is introduced into the air pipe, the rigid air pipe is communicated with the air needles, and meanwhile, a pressure gauge 41 is also connected to the rigid air pipe.

Placed transparent water tank 2 on hypoplastron 11, still be provided with three transparent inside groove 22 that is used for accepting the hose of waiting to detect in the bottom of transparent water tank 2, the height that highly is less than the water tank of inside groove, can flood the inside groove after adding water in the water tank, put into in the inside groove and wait to examine the hose, the effect of inside groove prevents that the showy of hose in aqueous from rocking, the position of restriction hose. Be provided with first backup pad 21 on the water tank, be provided with three bayonet socket that is used for the fixed hose that awaits measuring on first backup pad 21, every bayonet socket is corresponding with the inside groove directly under it, and is corresponding with the air needle directly over it simultaneously. The bayonet may have various forms, for example, it may be a round hole, the round hole allows the screw head 55 of the hose 5 to pass through it just freely, and the diameter of the round hole is smaller than that of the pipe body 51, so that the screw head of the hose passes through the bayonet from below the first support plate, the hose is limited below the first support plate, and the lower half of the hose is limited by the inner groove 32; then screw up detection special nut 56 on the thread head of hose, this special nut is different from normal packing nut, this special nut's height is less than the height of thread head, and be rubber roof 561 at the roof of this nut, after this special nut was screwed up the thread head that passes the bayonet socket, the rubber roof can compress tightly sealed with the central channel of thread head because of having elasticity, and the rubber roof can allow the gas needle to pass and enter into the central channel of thread head with compressed gas and squeeze into inside the hose, simultaneously also can not leak gas between gas needle and the rubber roof, the lower border of special nut can be pressed on first backup pad with the hose fixed.

When the device is used, the threaded heads of three hoses to be detected firstly penetrate through the bayonet from the lower part of the first support plate, then the hose is fixed by screwing the special detection pipe cap, then water is injected into the water tank to the shoulder part of the hose, next, the air cylinder is started to press the second support plate downwards, the second support plate drives the rigid air pipe and the air needle to move downwards, the air needle penetrates through the rubber top wall of the pipe cap and enters the hose, finally, compressed air is introduced into the rigid air pipe and pressure is maintained, whether bubbles are generated around the hose or not is observed, whether the leakage position of the hose is leaked or not can be judged, and the size of leakage amount, the pressure resistance strength grade of the hose and the like can be judged according to the pressure change condition of the pressure gauge within a certain time.

The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the claims of the present invention.

Claims (4)

1. The utility model provides a compound hose seepage detection device, includes the support, its characterized in that: the support comprises an upper plate and a lower plate, a transparent water tank is placed on the lower plate, a first supporting plate is arranged on the water tank, and a plurality of bayonets for fixing the hose to be detected are arranged on the first supporting plate; the air cylinder is installed on the upper plate, an output shaft of the air cylinder penetrates through the upper plate and vertically faces downwards, a second supporting plate is fixedly connected to the tail end of the output shaft of the air cylinder, a rigid air pipe is fixedly arranged on the second supporting plate, a plurality of air needles are vertically arranged on the rigid air pipe downwards at intervals, and each air needle corresponds to one bayonet on the first supporting plate right below the air needle.

2. The composite hose leak detection device of claim 1, wherein: and a left guide rod and a right guide rod are further arranged between the upper plate and the lower plate, and the left end and the right end of the second supporting plate are respectively connected with the left guide rod and the right guide rod in a sliding manner.

3. The composite hose leak detection device of claim 1, wherein: the bottom of the transparent water tank is also provided with a plurality of transparent inner grooves for receiving the hoses to be detected, and each inner groove corresponds to a bayonet on the first supporting plate right above the inner groove.

4. The composite hose leak detection device of claim 1, wherein: and the rigid air pipe is also connected with a pressure gauge.

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