CN215677468U

CN215677468U - Sealing test device based on backpressure principle

Info

Publication number: CN215677468U
Application number: CN202121248344.6U
Authority: CN
Inventors: 黄军垒
Original assignee: Henan Huibai Software Technology Co ltd
Current assignee: Henan Huibai Software Technology Co ltd
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2022-01-28
Anticipated expiration: 2031-06-04

Abstract

The utility model discloses a sealing test device based on a backpressure principle, which comprises a box body, wherein a plurality of hinges are fixedly arranged on the left side of the top of the box body, a movable door is fixedly arranged at one end of each hinge, a closing mechanism is arranged at the closing position of the movable door and the right side of the box body, and an air pump is arranged on the left side of the box body; according to the utility model, through the arrangement of the box body, the hinge, the movable door, the closing mechanism, the air pump, the clamping ring, the sliding groove, the vertical plate, the air cylinder, the detection head, the detection table and the supporting legs, the device has the advantages of clamping guide pipes with various lengths, ensuring stable detection environment and high-efficiency detection, and solves the problems that when the air tightness of the guide pipes is detected, detection devices with different specifications are required to detect the guide pipes due to the fact that the lengths of the guide pipes are different, and in the detection process, the air pressure of the environment cannot be constant, so that the detection result is not accurate enough.

Description

Sealing test device based on backpressure principle

Technical Field

The utility model relates to the technical field of sealing test, in particular to a sealing test device based on a backpressure principle.

Background

The back pressure refers to the pressure at the back end, which is generally used to describe the pressure (greater than the local atmospheric pressure) opposite to the flow direction of the fluid discharged from the system at the outlet or the secondary side, and the medium flowing in the target conduit is gas or liquid, so as to prevent the conducting medium from leaking in the conduit under a certain pressure during use, and the conduit must be tested for air tightness during production;

when the air tightness of the guide pipe is detected, due to the fact that the length of the guide pipe is different, detection devices of different specifications are needed to detect the guide pipe, in the detection process, air pressure of the environment cannot be constant, and therefore the detection result is not accurate enough.

SUMMERY OF THE UTILITY MODEL

For the defects of the prior art, the utility model provides a sealing test device based on a backpressure principle, which has the advantages of clamping catheters with various lengths, ensuring stable detection environment and high-efficiency detection.

The above object of the present invention is achieved by the following technical solutions: a sealing test device based on the backpressure principle comprises a box body, wherein a plurality of hinges are fixedly arranged on the left side of the top of the box body, one end of the hinge is fixedly provided with a movable door, a closing part of the movable door and the right side of the box body is provided with a closing mechanism, an air pump is arranged on the left side of the box body, an air pipe of the air pump penetrates through the box body from the left side and extends into the box body, one end of the air pump air delivery pipe is fixedly connected with a clamping ring, the inner wall of the bottom of the box body is provided with a sliding groove, the inner wall of the sliding chute is connected with a vertical plate in a sliding way, the inner wall of the bottom of the box body and the right side of the sliding chute are fixedly provided with a cylinder, the output shaft of the cylinder is fixedly connected with one side of the vertical plate, the inner wall of the right side of the box body is fixedly provided with a detection head, the right side of the box body is provided with a detection table, and detect the platform and detect electric connection between the head, the equal fixed mounting in four corners of detecting the platform bottom has the landing leg.

The utility model is further configured to: the closing mechanism comprises a rotating rod, the rotating rod is rotatably connected with the movable door, a handle is fixedly connected to the surface of the rotating rod, a limiting rod is fixedly connected to one side of the rotating rod, and a limiting groove is formed in the inner wall of the right side of the box body.

Through adopting above-mentioned technical scheme, through the setting of bull stick, handle, gag lever post and spacing groove for better closure between dodge gate and the box reduces because of the probability that external force opened the dodge gate.

The utility model is further configured to: the surface of one side of the movable door close to the box body is fixedly connected with a sealing strip, and the sealing strip is in contact with the box body.

Through adopting above-mentioned technical scheme, through the setting of sealing strip, can make better laminating of dodge gate and box, avoid outside air to get into inside the box when detecting the pipe simultaneously.

The utility model is further configured to: the left fixed surface of riser is connected with the buffer board, and the material of buffer board is silica gel.

Through adopting above-mentioned technical scheme, through the setting of buffer board, can protect pipe and riser, reduce the friction loss that pipe and riser brought because of fixed centre gripping.

The utility model is further configured to: the positive surface of box and the top of dodge gate all are provided with the observation window, and the glass on observation window surface is transparent material.

Through adopting above-mentioned technical scheme, through the setting of observation window, can in time observe the inspection condition of box inside to adjust the output of air pump atmospheric pressure.

The utility model is further configured to: the bottom fixed mounting of landing leg has the universal wheel, and the side of universal wheel is provided with the brake block.

Through adopting above-mentioned technical scheme, through the setting of universal wheel, conveniently remove the test bench, intensity of labour when reducing artifical the removal.

In conclusion, the beneficial technical effects of the utility model are as follows:

1. the sealing test device based on the backpressure principle has the advantages that structurally, through the matching use of the air cylinder, the clamping ring, the vertical plate and the sliding groove, the output rod of the air cylinder pushes the vertical plate to move towards the left side on the inner wall of the sliding groove, and therefore catheters with different lengths can be clamped;

2. structurally, through the arrangement of the box body, the hinge, the movable door and the closing mechanism, the closing mechanism can completely close the movable door and the box body, so that the air pressure reaching the interior of the box body is always kept stable.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a seal testing device based on the backpressure principle;

FIG. 2 is a schematic sectional front view of a seal testing device based on the back pressure principle according to the present invention;

FIG. 3 is a schematic view of a partial structure at A in FIG. 2 of a seal testing device based on the back pressure principle according to the present invention;

fig. 4 is a schematic partial perspective view of a seal testing device based on the back pressure principle according to the present invention.

In the figure, 1, a box body; 2. a hinge; 3. a movable door; 4. a closing mechanism; 41. a rotating rod; 42. a handle; 43. a limiting rod; 44. a limiting groove; 5. an air pump; 6. a clamping ring; 7. a chute; 8. a vertical plate; 9. a cylinder; 10. a detection head; 11. a detection table; 12. a support leg; 13. a sealing strip; 14. a buffer plate; 15. an observation window; 16. a universal wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-4, a sealing test device based on a backpressure principle comprises a box body 1, a plurality of hinges 2 are fixedly installed on the left side of the top of the box body 1, a movable door 3 is fixedly installed at one end of each hinge 2, a closing mechanism 4 is arranged at the closing position of the movable door 3 and the right side of the box body 1, an air pump 5 is arranged on the left side of the box body 1, an air pipe of the air pump 5 penetrates through the box body 1 from the left side and extends into the box body 1, a clamping ring 6 is fixedly connected to one end of the air pipe of the air pump 5, a chute 7 is formed in the inner wall of the bottom of the box body 1, a vertical plate 8 is slidably connected to the inner wall of the chute 7, an air cylinder 9 is fixedly installed on the inner wall of the bottom of the box body 1 and positioned on the right side of the chute 7, an output shaft of the air cylinder 9 is fixedly connected with one side of the vertical plate 8, a test head 10 is fixedly installed on the inner wall of the right side of the box body 1, a test table 11 is arranged on the right side of the box body 1, and the test table 11 is electrically connected with the test head 10, detect the equal fixed mounting in four corners of 11 bottoms of platform has landing leg 12, through box 1, hinge 2, dodge gate 3, closing mechanism 4, air pump 5, clamp ring 6, spout 7, riser 8, cylinder 9, detect head 10, detect the setting of platform 11 and landing leg 12, make the device possess the various length pipes of centre gripping, guarantee the advantage that the detection environment is stable and high-efficient to detect, solved and carry out gas tightness to the pipe and detect time measuring, because the length of pipe is unequal, just need the detection device of different specifications to detect the pipe, and in the testing process, can't carry out invariable to the atmospheric pressure of environment, lead to the not accurate problem of testing result inadequately.

In this embodiment, closing mechanism 4 includes bull stick 41, is connected for rotating between bull stick 41 and the dodge gate 3, and the fixed surface of bull stick 41 is connected with handle 42, and one side fixedly connected with gag lever post 43 of bull stick 41, spacing groove 44 has been seted up to the inner wall on box 1 right side, through the setting of bull stick 41, handle 42, gag lever post 43 and spacing groove 44 for better closure between dodge gate 3 and the box 1, the reduction is because of the probability that external force opened dodge gate 3.

In this embodiment, the fixed surface that dodge gate 3 is close to box 1 one side is connected with sealing strip 13, and sealing strip 13 and box 1 contact, through the setting of sealing strip 13, can make better laminating of dodge gate 3 and box 1, avoids outside air to get into inside box 1 when detecting the pipe simultaneously.

In this embodiment, the left fixed surface of riser 8 is connected with buffer board 14, and the material of buffer board 14 is silica gel, through the setting of buffer board 14, can protect pipe and riser 8, reduces the friction loss that pipe and riser 8 brought because of fixed centre gripping.

In this embodiment, the front surface of the box body 1 and the top of the movable door 3 are both provided with the observation window 15, and the glass on the surface of the observation window 15 is made of transparent material, so that the inspection condition inside the box body 1 can be observed in time through the arrangement of the observation window 15, and the output power of the air pressure of the air pump 5 can be adjusted.

In this embodiment, the bottom fixed mounting of landing leg 12 has universal wheel 16, and the side of universal wheel 16 is provided with the brake block, and through the setting of universal wheel 16, the convenience is removed examining test table 11, reduces the intensity of labour when artifical the removal.

The working principle of the utility model is as follows: when the air pump is used, firstly, a guide pipe is placed into the box body 1, one end of the guide pipe is fixed with an air conveying pipe of the air pump 5 through the clamping ring 6, then the air cylinder 9 is started, the output shaft of the air cylinder 9 pushes the vertical plate 8, at the moment, the vertical plate 8 moves leftwards on the inner wall of the sliding groove 7 under the pushing force of the air cylinder 9 until the buffer plate 14 on the surface of the vertical plate 8 is contacted with the other end of the guide pipe, the air cylinder 9 is closed, at the moment, under the combined action of the clamping ring 6 and the air cylinder 9, the guide pipe is fixed from the left side and the right side, then the movable door 3 is closed, the handle 42 is rotated, the rotating rod 41 is driven to rotate by the rotation of the handle 42, the limiting rod 43 is driven to rotate while the rotating rod 41 is rotated until the rotating rod 41 and the right wall of the box body 1 stop rotating vertically, at the moment, under the combined action of the limiting rod 43 and the limiting groove 44, the movable door 3 is in a closed state, then, the air pump 5 is started, and air is added into the guide pipe by the air pump 5, the gas can form the air current to the right side, the air current can form reaction force after meeting buffer board 14, the backpressure effect appears this moment, under the effect of backpressure, the inside gas of pipe can expand and exert pressure to the pipe, increase and close air pump 5 after certain pressure, detect the head 10 this moment and can detect the inside pressure state of box 1, and give information transmission and examine test table 11, the measurement personnel can know the inside atmospheric pressure of box 1 through the demonstration of observing the barometer this moment, if atmospheric pressure numerical value keeps stable, then the sealing performance of pipe is better, if atmospheric pressure numerical value increases, then the sealing performance of pipe is relatively poor, take out the pipe after the examination of awaiting measuring to finish, repeat above-mentioned action alright with testing other pipes.

While there have been shown and described the fundamental principles and essential features of the utility model and advantages thereof, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a sealed testing arrangement based on backpressure principle, includes box (1), its characterized in that: the detection device is characterized in that a plurality of hinges (2) are fixedly mounted on the left side of the top of the box body (1), a movable door (3) is fixedly mounted at one end of each hinge (2), a closing mechanism (4) is arranged at the closing position of each movable door (3) and the right side of the box body (1), an air pump (5) is arranged on the left side of the box body (1), an air pipe of the air pump (5) penetrates through the box body (1) from the left side and extends into the box body (1), a clamping ring (6) is fixedly connected to one end of the air pipe of the air pump (5), a sliding groove (7) is formed in the inner wall of the bottom of the box body (1), a vertical plate (8) is connected to the inner wall of the sliding groove (7) in a sliding manner, an air cylinder (9) is fixedly mounted on the inner wall of the bottom of the box body (1) and located on the right side of the sliding groove (7), an output shaft of the air cylinder (9) is fixedly connected with one side of the vertical plate (8), a detection head (10) is fixedly mounted on the inner wall of the right side of the box body (1), the right side of box (1) is provided with detects platform (11), and detects platform (11) and detect electric connection between head (10), the equal fixed mounting in four corners of detecting platform (11) bottom has landing leg (12).

2. A seal testing device based on the back pressure principle as claimed in claim 1, wherein: closing mechanism (4) include bull stick (41), be connected for rotating between bull stick (41) and dodge gate (3), the fixed surface of bull stick (41) is connected with handle (42), one side fixedly connected with gag lever post (43) of bull stick (41), spacing groove (44) have been seted up to the inner wall on box (1) right side.

3. A seal testing device based on the back pressure principle as claimed in claim 1, wherein: the surface of one side, close to the box body (1), of the movable door (3) is fixedly connected with a sealing strip (13), and the sealing strip (13) is in contact with the box body (1).

4. A seal testing device based on the back pressure principle as claimed in claim 1, wherein: the surface fixed connection on the left side of the vertical plate (8) is provided with a buffer plate (14), and the buffer plate (14) is made of silica gel.

5. A seal testing device based on the back pressure principle as claimed in claim 1, wherein: the front surface of the box body (1) and the top of the movable door (3) are both provided with observation windows (15), and the glass on the surfaces of the observation windows (15) is made of transparent materials.

6. A seal testing device based on the back pressure principle as claimed in claim 1, wherein: the bottom of the supporting leg (12) is fixedly provided with a universal wheel (16), and the side surface of the universal wheel (16) is provided with a brake pad.