CN210774539U

CN210774539U - Airtight detection frock

Info

Publication number: CN210774539U
Application number: CN201921952834.7U
Authority: CN
Inventors: 韩宏; 刘移利; 倪拥升
Original assignee: Hubei Yx Heat Exchange System Co ltd
Current assignee: Hubei Yx Heat Exchange System Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-06-16
Anticipated expiration: 2029-11-12

Abstract

The utility model relates to an airtight detection frock, airtight detection frock is used for the mouth of pipe of sealed pipeline. The lateral wall of pipeline is protruding to form the convex part, and airtight detection frock includes braced frame, butt piece, sealing member and compresses tightly the piece. The abutting piece is mounted on the supporting frame. The sealing element is arranged on the supporting frame and forms a limiting part with the abutting part in an enclosing mode, and the sealing element can slide along the connecting line direction of the sealing element and the abutting part in an operable mode so as to adjust the size of the limiting part. The pressing piece is mounted on the supporting frame and can slide along the connecting line direction of the sealing piece and the abutting piece in an operable mode so as to abut against or separate from the sealing piece. The utility model provides a pair of airtight detection frock has comparatively extensive suitability.

Description

Airtight detection frock

Technical Field

The utility model relates to the field of automotive technology, especially, relate to an airtight detection frock.

Background

The intercooler is a fitting of the turbocharger. An air inlet pipe and an air outlet pipe are arranged on the intercooler. The air inlet pipe is communicated with the worm gear supercharger, and the air outlet pipe is communicated with the engine. The intercooler can carry out cooling treatment to the high-temperature gas after the turbocharger is supercharged and then convey the high-temperature gas into the engine so as to reduce the heat load of the engine and increase the power of the engine.

Before the intercooler uses, need detect the gas tightness of intercooler to prevent that the intercooler from leaking gas in the in-process that uses. Before the gas tightness detects, need seal the mouth of pipe of intake pipe and the outlet duct of intercooler earlier to prevent mouth of pipe gas leakage. Traditional airtight detection frock includes rubber pad and eccentric wheel, utilizes rotatory eccentric wheel and rubber pad butt, can compress tightly the mouth of pipe of rubber pad and intake pipe and outlet duct to realize the shutoff of intake pipe and outlet duct.

However, if the model of the intercooler is changed and the inner diameters of the inlet pipe and the outlet pipe are changed, the rubber pads need to be replaced to adapt to the inlet pipe and the outlet pipe with different inner diameters. Therefore, the application range of the air tightness detection tool in the prior art is narrow.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide an airtight detection tool with wide applicability to the problem that the application range of the conventional airtight detection tool is narrow.

The utility model provides an airtight detection frock for the mouth of pipe of sealed pipeline, the lateral wall of pipeline is protruding to form the convex part, airtight detection frock includes:

a support frame;

an abutting member mounted to the support frame;

the sealing element is arranged on the supporting frame and forms a limiting part with the abutting part in an enclosing mode, and the sealing element can slide along the direction of a connecting line of the sealing element and the abutting part in an operable mode so as to adjust the size of the limiting part; and

and the pressing piece is arranged on the support frame and can slide along the connecting line direction of the sealing piece and the abutting piece in an operable mode so as to abut against or separate from the sealing piece.

In one embodiment, a holding portion for holding the pipe is formed at one side of the abutment member.

In one embodiment, the sealing member includes a rigid plate and a flexible plate, the flexible plate and the abutting member are enclosed to form the limiting portion, the rigid plate is laminated on a surface of the flexible plate facing away from the abutting member, and the pressing member abuts against or separates from the rigid plate.

In one embodiment, the supporting frame includes a supporting plate and a supporting pillar, the supporting plate is disposed on a side of the sealing member facing away from the abutting member, and the supporting pillar penetrates through the sealing member and the abutting member and is connected to the supporting plate and the abutting member.

In one embodiment, the pressing member includes a main body and a pressing portion disposed at one end of the main body, the supporting plate is provided with a clearance hole, the main body slidably penetrates through the clearance hole, the pressing portion is located between the supporting plate and the sealing member and is abutted against or separated from the sealing member, and the radial dimension of the pressing portion in the clearance hole is larger than the diameter of the clearance hole.

In one embodiment, the pressing portion is screwed with the body.

In one embodiment, the support frame further includes a guide post, the guide post is disposed on a side of the support plate opposite to the sealing member, the guide post is provided with a guide hole, and the main body is inserted into the guide hole.

In one embodiment, the pressing device further comprises an operating part and a transmission part, the operating part and the transmission part are arranged on one side, back to the sealing part, of the supporting plate, the operating part is provided with an operating end and a rotating end, the rotating end is rotatably installed on the supporting frame, two opposite ends of the transmission part are respectively connected with the pressing part and the operating part in a rotating mode, the operating end rotates relative to the rotating end, and the transmission part can be driven to drive the pressing part to slide.

In one embodiment, the transmission member includes two transmission pieces arranged oppositely and at an interval, and the pressing member and the operating member are both clamped between the two transmission pieces and connected with the two transmission pieces through a rotating shaft.

In one embodiment, the sliding device further comprises a sliding limiting piece, a through hole is formed in the supporting plate, the sliding limiting piece is installed on the sealing piece and penetrates through the through hole, and sliding limiting lines are arranged on the periphery of one end, close to the sealing piece, of the sliding limiting piece.

Above-mentioned airtight detection frock, butt portion and convex part are to orificial one side butt, and the operation sealing member slides for one section of pipeline mouth of pipe to convex part can centre gripping between butt piece and sealing member, and at this moment, the sealing member covers in the mouth of pipe of pipeline. Further, the pressing member is operated to slide so that the pressing member abuts against the seal member, and therefore, the seal member can be pressed against the edge of the spout to seal the spout. After the air tightness detection is finished, the pressing piece and the sealing piece are operated to slide reversely, and the air tightness detection tool can be detached. Above-mentioned airtight detection frock, because the sealing member is sealed in the mouth of pipe department of pipeline, consequently, set up the great sealing member of surface area, even the diameter of pipeline changes, also need not to change the sealing member, the mouth of pipe still can be sealed to the sealing member, therefore has comparatively extensive suitability.

Drawings

Fig. 1 is a schematic structural view of an air tightness detection tool according to an embodiment of the present invention;

fig. 2 is a schematic structural view of the airtightness detection tool shown in fig. 1, in another direction.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the present invention provides an air tightness detecting tool 10 for sealing a pipe orifice of a pipeline. The side wall of the duct is raised to form a convex portion. The utility model discloses use the intake pipe and the outlet duct of pipeline as the intercooler to explain as the example. Before the intercooler carries out the gas tightness and detects, all need to install an airtight detection frock 10 on intake pipe and the outlet duct, airtight detection frock 10 is used for the mouth of pipe of sealed intake pipe and outlet duct to make things convenient for the follow-up detection that carries out the gas tightness to the intercooler.

The air tightness detection tool 10 comprises a supporting frame 11, an abutting piece 13, a sealing piece 15 and a pressing piece 17.

The support frame 11 functions as a support and a mounting. Generally, the supporting frame 11 may be made of alloy, plastic steel or other materials with better supporting strength. The abutting part 13 is used for abutting against the convex part of the pipeline, the sealing part 15 is used for abutting against the edge of the pipe orifice, and the pressing part 17 can press the sealing part 15 at the pipe orifice, so that one section of the convex part of the pipeline to the pipe orifice can be clamped between the abutting part 13 and the sealing part 15, and the fixing of the air tightness detection tool 10 and the sealing of the pipe orifice are realized.

Specifically, the abutment 13, the seal 15, and the pressing piece 17 are all mounted to the support frame 11. The abutment 13 abuts against the side of the projection facing away from the nozzle. The sealing member 15 and the abutting member 13 are enclosed to form a limiting portion 130, and the sealing member 15 can slide along a connecting line direction of the sealing member 15 and the abutting member 13 to adjust the size of the limiting portion 130. Specifically, the sealing member 15 slides in a direction toward the abutting member 13, and the sealing member 15 can gradually come close to the abutting member 13, and in this process, the size of the limiting portion 130 also gradually decreases. The size of the stop 130 exactly matches the length of the boss to the spout when the seal 15 is slid into contact with the edge of the spout. The sealing element 15 slides along the direction back to the abutting part 13, the size of the limiting part 130 can be increased, the sealing element 15 and the edge of the pipe orifice are arranged at intervals, and the air tightness detection tool 10 is convenient to disassemble. When the sealing member 15 is slid into contact with the edge of the spout, the pressing member 17 is slid so that the pressing member 17 abuts against the sealing member 15, and thus, the pressing force applied to the sealing member 15 by the pressing member 17 may cause the sealing member 15 to be brought into close contact with the edge of the spout to seal the spout. Meanwhile, a section from the upper convex part of the pipeline to the pipe opening can be stably clamped between the abutting part 13 and the sealing part 15, and the installation of the air tightness detection tool 10 can be realized. When the air tightness detection is finished and the air tightness detection tool 10 needs to be disassembled, the pressing piece 17 is reversely slid, so that the pressing piece 17 is separated from the sealing piece 15. And the sealing member 15 is operated to slide in reverse, and the sealing member 15 is separated from the edge of the spout. Then, operate whole airtight detection frock 10 and pipeline dislocation set, can realize the dismantlement of airtight detection frock 10. In the present application, since the sealing member 15 is sealed at the pipe orifice of the pipe, the sealing member 15 having a large surface area is provided, and even if the diameter of the pipe changes, the sealing member 15 does not need to be replaced, and the sealing member 15 can still seal the pipe orifice, thereby having a wide applicability.

It should be noted that, in this embodiment, the sliding of the sealing member 15 and the pressing member 17 can be performed manually or by a driving member.

The supporting frame 11 includes a supporting plate 110 and a supporting pillar 112, the supporting plate 110 is disposed on a side of the sealing member 15 opposite to the abutting member 13, and the supporting pillar 112 penetrates through the sealing member 15 and the abutting member 13 and is connected to the supporting plate 110 and the abutting member 13.

Specifically, the supporting column 112 extends along a connecting line between the sealing member 15 and the abutting member 13, and two opposite ends of the supporting column 112 are fixed to the supporting plate 110 and the abutting member 13, respectively, so as to support the abutting member 13 by the mounting frame. At the same time, the supporting column 112 penetrates the sealing member 15, and the sliding of the sealing member 15 is also guided so that the sealing member 15 slides in the extending direction of the supporting column 112 to prevent the sealing member 15 from shaking. The support plate 110 is disposed on a side of the sealing member 15 facing away from the abutting member 13, and can limit the sliding of the sealing member 15 to prevent the sealing member 15 from being withdrawn from the support column 112 due to an excessively large sliding distance.

One side of the abutment 13 is formed with a catching part 132 for catching the pipe. Therefore, the contact area between the abutting piece 13 and the pipe can be effectively increased, and the abutting piece 13 and the pipe can be matched more firmly.

In particular, since the duct is generally hollow and cylindrical, the abutment 13 may be provided as an arcuate plate-like structure. The arc-shaped plate-like structure forms an abutting surface 134 facing the plane of the abutting surface, and the abutting surface 134 abuts against the convex portion. The catching portion 132 is formed by an arc-shaped concave surface of the abutting member 13 connected to the abutting surface 134. The radian of the arc-shaped concave surface can be matched with that of the side wall of the pipeline. When the pipe is installed, the pipe is clamped in the clamping part 132, and the outer wall of the pipe can be better attached to the arc-shaped concave surface, so that the contact area between the abutting part 13 and the pipe can be effectively increased, and the abutting part 13 and the pipe can be more firmly matched. When the inner diameter and the outer diameter of the pipeline change, only the partial area of the arc-shaped concave surface is attached to the outer wall of the pipeline, and the rest of the arc-shaped concave surface and the outer wall of the pipeline are arranged at intervals, so that the pipeline can be clamped with the clamping part 132 only by ensuring.

It should be noted that, in some other embodiments, when the shape of the pipe changes, the retainer 13 may be set to have other shapes, and it is only necessary to ensure that the retainer 132 formed on one side of the retainer 13 can match with the shape of the pipe.

The seal 15 includes a rigid plate 150 and a flexible plate 152, the flexible plate 152 and the abutting member 13 are surrounded to form the stopper 130, the rigid plate 150 is laminated on a surface of the flexible plate 152 facing away from the abutting member 13, and the pressing member 17 abuts against or separates from the rigid plate 150.

Specifically, the flexible board 152 may be made of rubber, silicone, or other materials. The rigid plate 150 is made of alloy, stainless steel, or the like. The rigid plate 150 is laminated on the side of the flexible plate 152 facing away from the abutment 13.

For the seal 15 consisting of only a single flexible plate 152, the single flexible plate 152 is less rigid and more flexible. In the process of driving the sealing member 15 composed of the single flexible plate 152 to slide, since the driving force generally acts on only a local area of the sealing member 15, there is a possibility that the flexible plate 152 is largely deformed, so that the driving force first pulls the local area of the flexible plate 152 to slide, and then the other areas follow the local area to slide, so that the sliding of the sealing member 15 is unstable. In this embodiment, by providing the flexible plate 152 and the rigid plate 150, the seal 15 is more rigid than if the flexible members were formed separately. Therefore, when a driving force is applied to a partial region of the sealing member 15, the sealing member 15 is less likely to be deformed, so that the driving force can drive the entire sealing member 15 to slide, thereby making the sliding of the sealing member 15 smoother. Further, by forming the seal 15 by stacking the flexible plate 152 and the rigid plate 150, damage to the pipe due to contact and rigid contact of the seal 15 with the edge of the pipe orifice can be prevented, compared to the case where the seal 15 is provided by a single rigid plate 150.

In this embodiment, the number of the flexible plates 152 and the rigid plates 150 is not limited.

In some embodiments, the air-tightness detection tool 10 further comprises a limit slip piece 19. A through hole is formed in the support plate 110, the sliding limiting piece 19 is mounted on the sealing piece 15 and penetrates through the through hole, and sliding limiting lines 190 are arranged on the periphery of one end, close to the sealing piece 15, of the sliding limiting piece 19.

Specifically, the slide limiter 19 is mounted to the rigid plate 150 on a side thereof facing away from the flexible plate 152. The supporting plate 110 has a through hole. The sliding stopper 19 and the through holes are all provided in a plurality and one-to-one correspondence, and the sliding stopper 19 is provided at intervals along the circumferential direction of the rigid plate 150 and penetrates through the corresponding through holes. During the sliding of the entire sealing element 15 relative to the abutment 13 in the direction away from the abutment 13, the distance between the rigid plate 150 and the support plate 110 gradually decreases, and the length of the slide limiter 19 protruding from the support plate 110 on the side facing away from the sealing element 15 gradually increases. And the periphery of the end of the slip limiting piece 19 close to the sealing element 15 is provided with a slip limiting line 190, so when the hole wall of the through hole contacts with the slip limiting line 190, because the surface of the slip limiting line 190 is rougher, the friction between the slip limiting line 190 and the hole wall of the through hole is larger compared with a smooth surface, therefore, the slip limiting line 190 generates a larger obstruction to the sliding of the sealing element 15, and the sliding speed of the whole sealing element 15 is slowed down or even the sliding is stopped. It is possible to effectively prevent the sliding speed of the entire seal 15 from being excessively high to cause cracks or damages between the rigid plate 150 and the support plate 110 due to a large impact.

The pressing member 17 includes a main body 170 and a pressing portion 172 disposed at one end of the main body 170, a clearance hole 1101 is disposed on the support plate 110, the main body 170 slidably penetrates through the clearance hole 1101, the pressing portion 172 is located between the support plate 110 and the sealing member 15 and is abutted to or separated from the sealing member 15, and a radial dimension of the pressing portion 172 in the clearance hole 1101 is greater than a bore diameter of the clearance hole 1101.

Therefore, the pressing portion 172 can be ensured to be always located between the sealing member 15 and the supporting plate 110, and the pressing member 17 can be always inserted into the clearance hole 1101, so as to avoid that the pressing member 17 is disengaged from the clearance hole 1101 in the sliding process and cannot press the sealing member 15.

Specifically, the pressing portion 172 and the main body 170 may be integrally formed or may be separately formed.

In some embodiments, the compression portion 172 is threadably coupled to the body 170.

Specifically, the pressing portion 172 is a nut structure, one end of the main body 170 is provided with an external thread structure, and the nut structure is screwed with the external thread structure to realize the installation of the main body 170 and the pressing portion 172. Alternatively, in some other embodiments, a threaded hole may be formed in the middle of the pressing portion 172, and one end of the main body 170 is screwed into the threaded hole.

By providing the pressing portion 172 to be screwed to the main body 170, the pressing portion 172 and the main body 170 can be easily attached and detached. Moreover, when replacing the sealing member 15 with a larger size to meet the requirement of a pipe with a larger diameter, the pressing portion 172 can be detached and replaced with the pressing portion 172 with a larger size, so that the overlapping area of the projection of the pressing portion 172 on the surface of the sealing member 15 on the side opposite to the abutting member 13 and the surface of the sealing member 15 is increased, and the sealing effect of the sealing member 15 on the pipe orifice is improved.

Further, the supporting frame 11 further includes a guiding post 114, the guiding post 114 is disposed on a side of the supporting plate 110 opposite to the sealing element 15, a guiding hole 1141 is formed on the guiding post 114, and the main body 170 is disposed through the guiding hole 1141.

Specifically, a support base 116 of the support frame 11 is mounted on a side of the support plate 110 facing away from the seal 15, and the guide posts 114 are disposed on the support base 116. The main body 170 is arranged in the guide hole 1141 in a penetrating manner, and the hole wall of the guide hole 1141 can guide and limit the whole pressing piece 17 to prevent the pressing piece 17 from violently shaking in the sliding process, so that the pressing piece 17 can slide more stably.

In some embodiments, the air tightness detecting tool 10 further includes an operating member 23 and a transmission member 21. The operating member 23 and the transmission member 21 are disposed on a side of the supporting plate 110 opposite to the sealing member 15, the operating member 23 has an operating end 232 and a rotating end 230, the rotating end 230 is rotatably mounted on the supporting frame 11, two opposite ends of the transmission member 21 are rotatably connected to the pressing member 17 and the operating member 23, respectively, the operating end 232 rotates relative to the rotating end 230, and the transmission member 21 can be driven to drive the pressing member 17 to slide.

Specifically, the transmission member 21 and the operation member 23 are mounted on the support platform 116 and are disposed on a side of the guide post 114 away from the support plate 110. The operation end 232 rotates relative to the rotation end 230 to drive the transmission member 21 to rotate relative to the pressing member 17 and the operation member 23, and the transmission member 21 presses the pressing member 17 to push the pressing member 17 to slide in the direction toward the abutting member 13 until the pressing member 17 abuts against the rigid plate 150. When the air tightness detecting tool 10 needs to be disassembled, the operation end 232 rotates reversely relative to the rotating end 230, and the transmission member 21 rotates the drawable pressing member 17 to slide in the direction back to the abutting member 13, so that the abutting member 13 is separated from the rigid plate 150.

Through setting up operating parts 23 and driving medium 21, operating parts 23 rotates and drives driving medium 21 and rotate, and driving medium 21 can convert the rotation of operating parts 23 into the linear motion of compressing tightly 17. That is, the operation member 23 can be rotated only within a small range to slide the pressing member 17 in a wide range, and therefore, the operation is more labor-saving.

In this embodiment, the rotating end 230 of the operating member 23 is connected with the transmission member 21 and the supporting platform 116 in a damping manner. When the operation of the operation end 232 is stopped, the rotation end 230 stops rotating, and therefore, the pressing piece 17 can be kept in an abutting or separating state with the abutting piece 13, so that the pressing piece 17 is prevented from moving to cause the sealing piece 15 to fail to seal the nozzle or prevent disassembly.

Furthermore, it is worth mentioning that since the support platform 116 is installed on the side of the support plate 110 facing away from the sealing member 15, the side of the support plate 110 facing away from the sealing member 15 has a larger space, so that the operator can conveniently drive the pressing member 17 to slide by operating the operating member 23. Meanwhile, the pressing piece 17 has a wider sliding space, so that interference of other shelters on the sliding of the pressing piece 17 is prevented.

In some embodiments, the transmission member 21 includes two transmission plates 210 disposed opposite to each other and spaced apart from each other, and the pressing member 17 and the operation member 23 are sandwiched between the two transmission plates 210 and connected to the two transmission plates 210 through a rotation shaft.

One end of the operating piece 23 and one end of the pressing piece 17 are respectively clamped between the two transmission pieces 210, so that the connecting performance and the integrity among the operating piece 23, the transmission piece 21 and the pressing piece 17 are stronger. Therefore, when the operating part 23 drives the pressing part 17 to slide through the transmission part 21, the power on the operating part 23 can be timely transmitted to the pressing part 17 and drives the pressing part 17 to slide, so that the sealing efficiency of the airtight detection tool 10 can be effectively improved.

Generally, when the intercooler is sealed, two air tightness detection tools 10 are needed. One of the air tightness detecting tools 10 seals the pipe orifice of the air inlet pipe. And the other air tightness detection tool 10 is used for sealing the pipe orifice of the air outlet pipe. And the air inlet hole is formed in the air tightness detection tool 10 for sealing the pipe opening of the air inlet pipe and/or the air tightness detection tool 10 for sealing the pipe opening of the air outlet pipe. Specifically, the air inlet hole penetrates through the support plate 110, the rigid plate 150, and the flexible plate 152 of the air tightness detecting tool 10. The air duct is disposed through the air inlet holes of the support plate 110, the rigid plate 150 and the flexible plate 152, and is closely fitted with the hole walls of the air inlet holes on the support plate 110, the rigid plate 150 and the flexible plate 152.

When the airtightness detection tool 10 needs to be used to perform airtightness detection on the intercooler, first, the abutting part 13 is operated to abut against the convex part of the pipe, and the pipe is clamped with the clamping part 132, so as to position the abutting part 13. The entire seal 15 is then manually operated to slide along the support post 112 until the seal 15 abuts the mouth of the air inlet tube. Then, the operating member 23 drives the transmission member 21 to slide the pressing member 17 in a direction toward the sealing member 15, and the abutting member 13 can abut against the sealing member 15, so that the sealing member 15 presses against the edge of the nozzle and seals the nozzle. Therefore, the airtightness detection tool 10 and the pipeline are installed completely, and the pipe orifice is sealed. Then, the intercooler with the air inlet pipe and the air outlet pipe both sealed is placed in water, air is introduced into the air inlet pipe, and the air enters the intercooler. If the air tightness of the intercooler is poor, the air leaked from the intercooler is discharged from the intercooler and bubbles appear in the water. If the gas tightness of intercooler is good, then the bubble can not appear in the aquatic.

According to the airtight detection tool 10, the abutting part abuts against one side of the convex part, which is opposite to the pipe orifice, and the sealing element 15 is operated to slide, so that one section from the pipe orifice of the pipeline to the convex part can be clamped between the abutting part 13 and the sealing element 15, and at the moment, the sealing element 15 covers the pipe orifice of the pipeline. Further, the pressing piece 17 is operated to slide so that the pressing piece 17 abuts against the seal 15, and therefore, the seal 15 can be pressed against the edge of the spout to seal the spout. After the air tightness detection is finished, the pressing piece 17 and the sealing piece 15 are operated to reversely slide, and the air tightness detection tool 10 can be detached. According to the air tightness detection tool 10, the sealing element 15 is sealed at the pipe orifice of the pipeline, so that the sealing element 15 with a large surface area is arranged, the sealing element 15 does not need to be replaced even if the diameter of the pipeline changes, the pipe orifice can be sealed by the sealing element 15, and the air tightness detection tool has wide applicability.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an airtight detection frock for the mouth of pipe of sealed pipeline, the lateral wall of pipeline is protruding to form the convex part, its characterized in that, airtight detection frock includes:

a support frame;

an abutting member mounted to the support frame;

2. The airtightness detection tool according to claim 1, wherein a retaining portion for retaining the pipe is formed on one side of the abutting member.

3. The airtightness detection tool according to claim 1, wherein the sealing member includes a rigid plate and a flexible plate, the flexible plate and the abutting member are enclosed to form the limiting portion, the rigid plate is laminated on a surface of the flexible plate facing away from the abutting member, and the pressing member is abutted against or separated from the rigid plate.

4. The airtightness detection tool according to claim 1, wherein the support frame includes a support plate and a support pillar, the support plate is disposed on a side of the sealing member facing away from the abutment member, and the support pillar penetrates through the sealing member and the abutment member and is connected to the support plate and the abutment member.

5. The airtightness detection tool according to claim 4, wherein the pressing member includes a main body and a pressing portion disposed at one end of the main body, the support plate is provided with an avoidance hole, the main body slidably penetrates through the avoidance hole, the pressing portion is located between the support plate and the sealing member and is abutted against or separated from the sealing member, and a radial dimension of the pressing portion in the avoidance hole is larger than a diameter of the avoidance hole.

6. The airtightness detection tool according to claim 5, wherein the pressing portion is screwed to the main body.

7. The airtightness detection tool according to claim 5, wherein the support frame further comprises a guide post, the guide post is disposed on one side of the support plate, which faces away from the sealing member, a guide hole is formed in the guide post, and the main body is inserted in the guide hole.

8. The airtightness detection tool according to claim 4, further comprising an operating part and a transmission part, wherein the operating part and the transmission part are arranged on one side, back to the sealing part, of the supporting plate, the operating part is provided with an operating end and a rotating end which are opposite, the rotating end is rotatably mounted on the supporting frame, two opposite ends of the transmission part are respectively rotatably connected with the pressing part and the operating part, the operating end rotates relative to the rotating end, and the transmission part can be driven to drive the pressing part to slide.

9. The airtightness detection tool according to claim 8, wherein the transmission member includes two transmission pieces which are arranged oppositely and at an interval, and the pressing member and the operation member are both clamped between the two transmission pieces and are connected with the two transmission pieces through a rotating shaft.

10. The airtightness detection tool according to claim 4, further comprising a slip limiting piece, wherein a through hole is formed in the support plate, the slip limiting piece is mounted on the sealing member and penetrates through the through hole, and a slip limiting line is arranged on the periphery of one end, close to the sealing member, of the slip limiting piece.