Air tightness detection device for pressure pipeline

Abstract

The utility model discloses a pressure pipeline airtightness detection device, comprising a water tank filled with clear water; the concentric-square-shaped lifting plate is arranged above the water tank; the vertical guide lifting driving assembly is fixedly mounted on the outer side of the concentric-square-shaped lifting plate and used for driving the concentric-square-shaped lifting plate to vertically ascend and descend; the threaded transverse guide and transverse drive assembly is mounted in the concentric-square-shaped lifting plate; the number of the supporting plates is two, and the supporting plates are fixed to the left side of the bottom of the concentric-square-shaped lifting plate and the bottom of the threaded transverse guiding and transverse driving assembly correspondingly. According to the utility model, a series of structures are arranged, so that the two ends of the pressure pipelines with various inner diameter specifications can be sealed, blocked, clamped and supported in a conical inner side supporting and sealing manner, the applicability is improved, and the pressure pipeline can be stamped and subjected to pressure maintaining to detect the air tightness; and personnel can conveniently judge the air leakage position during leakage and obviously judge whether the air leakage phenomenon is caused by the fact that the end part plugging position is not pressed tightly, so that the judgment error phenomenon caused by the fact that the end part plugging position or the pressure pipeline cannot be judged is avoided, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure pipeline detection technical field, concretely is a pressure pipeline air tightness detection device. BACKGROUND

[0002] Pressure pipeline refers to the special equipment that can cause combustion or poisoning and so on in production and life, such as gas natural gas pipeline, petroleum pipeline and so on in life, short distance pressure pipeline accessory is the connecting pipeline that various pressure equipment conveying end universally applies, and its air tightness needs to be detected in production process to avoid the possibility of leakage;

[0003] The existing air tightness detection usually adopts punch pressure observation to judge pressure change, for this, such as the announcement number CN221376985U discloses a pressure pipeline air tightness detection device, including base, the top middle part of base is fixedly connected with two support blocks, the top of two support blocks is placed with pressure pipeline, and the two sides of pressure pipeline are equipped with detection assembly, and the top two sides of base are slidably connected with adjusting assembly, and the top of two adjusting assemblies is fixedly connected with the bottom of detection assembly, and adjusting assembly includes electric cylinder fixedly connected on the one side of base top, and the telescopic end of electric cylinder is fixedly connected with sliding block, and the bottom of sliding block is slidably connected with the top surface of base, and the top of sliding block is fixedly connected with detection assembly through support rod;It detects the air tightness of pressure pipeline through the detection assembly, wherein the first sealing cover and the second sealing cover are respectively clamped on the two sides of pressure pipeline, the air pressure output by the air pump is filled into the pressure pipeline, and the air pressure table on the side of second sealing cover directly shows the air pressure condition, so that the air tightness of pressure pipeline can be better detected.

[0004] The pressure pipeline air tightness detection device disclosed by the above technology drives two sealing covers to clamp and block pressure pipeline by two electric cylinders arranged on the base, and then carries out air tightness detection work by air pump inflation and pressure change detection of pressure gauge, but the following deficiencies still exist during use:

[0005] 1, the sealing cover is matched with the end of the pressure pipeline, and it is difficult to apply to different inner diameter specifications of short distance pressure pipeline for blocking detection work, and the applicability is not ideal;2, (since there is a possibility of leakage at the end blocking position), it is difficult for personnel to judge whether the blocking position or the pressure pipeline itself position leaks when leakage occurs, and the detection accuracy is not ideal;In view of this, the present application provides a pressure pipeline air tightness detection device to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a pressure pipeline air tightness detection device to solve the problems in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: a pressure pipeline gas tightness detection device, comprising

[0008] The water tank is filled with clean water;

[0009] The back-and-forth lifting plate is arranged above the water tank;

[0010] The vertical guide lifting driving assembly is fixedly installed outside the back-and-forth lifting plate and is used for driving the vertical lifting of the back-and-forth lifting plate;

[0011] The threaded horizontal guide horizontal driving assembly is installed in the back-and-forth lifting plate;

[0012] The support plates are two in number and are fixed at the bottom left side of the back-and-forth lifting plate and the bottom of the threaded horizontal guide horizontal driving assembly respectively;

[0013] The conical plugs are two in number and are symmetrically arranged, and the two conical plugs are fixed at the side close to the two support plates respectively; the support plates are arranged to drive the left and right movement of the conical plug on the right side in cooperation with the threaded horizontal guide horizontal driving assembly, to adjust the length of the end sealing according to the difference of the short-distance pressure pipeline, and the conical plugs are arranged to seal the inside of the end of the pressure pipeline of various inner diameter specifications by adapting to the conical shape;

[0014] The gas tightness stamping detection assembly is fixed at the top left side of the back-and-forth lifting plate and transversely penetrates the left conical plug, and the gas tightness stamping detection assembly is used for detecting the pressure change of the pressure pipeline after sealing by stamping and pressure maintaining to judge the gas tightness.

[0015] Preferably, the vertical guide lifting driving assembly comprises a U-shaped support fixedly connected to the top of the water tank, an electric telescopic rod is embedded and fixed on the inner wall of the top of the U-shaped support, the extending end of the electric telescopic rod is fixedly connected to the top of the back-and-forth lifting plate, and the two sides of the back-and-forth lifting plate are fixedly connected with rectangular guide sleeves, and the two rectangular guide sleeves are slidingly sleeved on the U-shaped support.

[0016] Preferably, the threaded horizontal guide horizontal driving assembly comprises a screw rod rotatably installed on the right inner wall of the back-and-forth lifting plate, a rectangular sliding sleeve is slidingly sleeved on the outer side of the back-and-forth lifting plate, a moving seat is fixedly connected between the top inner wall and the bottom inner wall of the rectangular sliding sleeve, the moving seat is located in the back-and-forth lifting plate and is threadedly sleeved on the screw rod, a driving motor is fixedly installed on the left inner wall of the back-and-forth lifting plate and is fixedly connected with the left end of the screw rod, and the bottom of the rectangular sliding sleeve is fixedly connected with the top of the right support plate.

[0017] Preferably, the air-tight stamping detection assembly comprises an air pump fixedly installed on the top left side of the meandering lifting plate, the air outlet of the air pump is communicated with a one-way valve with an outlet on the left side, the left end of the one-way valve is communicated with a right-angle pipe head, the bottom end of the right-angle pipe head is communicated with an L-shaped air supply pipe, the right end of the L-shaped air supply pipe penetrates the conical plug from left to right in the transverse direction, a pressure gauge is fixedly installed on the left side of the right-angle pipe head, and the detection end of the pressure gauge extends into the right-angle pipe head.

[0018] Preferably, the left bottom of the water tank is communicated with a manual drain valve.

[0019] Preferably, the outer side of the conical plug is adhesively coated with a conical sealing rubber sleeve.

[0020] Preferably, a storage battery is fixedly installed on the top right side of the U-shaped support, and the electric telescopic rod, the air pump and the driving motor are electrically connected with the storage battery.

[0021] Preferably, one side of the moving seat is provided with a threaded hole threadedly connected with a screw rod.

[0022] Compared with the prior art, the utility model has the advantages that:

[0023] 1. The meandering lifting plate, the threaded transverse guide and driving assembly, the supporting plate, the conical plug and the conical sealing rubber sleeve cooperate to seal and block the two ends of pressure pipelines of various inner diameter specifications by the mode of moving clamping and supporting on the conical inner side, thereby improving the applicability.

[0024] 2. The conical plug and the air-tight stamping detection assembly cooperate to detect the air tightness of the pressure pipeline after blocking the two ends.

[0025] 3. The meandering lifting plate, the supporting plate, the conical plug, the water tank and the vertical guide lifting driving assembly cooperate to enable personnel to determine the air leakage position and whether the air leakage is caused by the end blocking position or the pressure pipeline itself when leakage occurs, thereby avoiding the phenomenon of judgment error caused by the inability to determine the end blocking position or the pressure pipeline itself, and improving the detection accuracy.

[0026] The utility model is provided with a series of structures, which facilitate the sealing and blocking of the two ends of pressure pipelines of various inner diameter specifications by the mode of supporting on the conical inner side, improve the applicability, enable the air tightness of the pressure pipeline to be detected, and facilitate personnel to determine the air leakage position and whether the air leakage is caused by the end blocking position or the pressure pipeline itself when leakage occurs, thereby avoiding the phenomenon of judgment error caused by the inability to determine the end blocking position or the pressure pipeline itself, and improving the detection accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1A structure schematic view of a pressure pipeline air tightness detection device is provided in the utility model.

[0028] Figure 2 A main view sectional structure schematic view of a pressure pipeline air tightness detection device is provided in the utility model.

[0029] Figure 3 For Figure 2 The A part in the enlarged structure schematic view.

[0030] In the drawing: 1, water tank; 2, U-shaped support; 201, rectangular guide sleeve; 202, electric telescopic rod; 3, shape lifting plate; 4, driving motor; 401, screw rod; 402, rectangular sliding sleeve; 403, moving seat; 5, support plate; 501, conical plug; 502, conical sealing rubber sleeve; 6, L-shaped gas supply pipe; 601, right-angle pipe head; 602, air pressure gauge; 603, one-way valve; 604, air pump. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Apparently, 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 the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] As Figures 1 to 3 Indicated, a pressure pipeline air tightness detection device is provided in the embodiment, which comprises:

[0033] The water tank is filled with clean water, and a manual drain valve is fixedly connected to the left bottom of the water tank 1;

[0034] The U-shaped lifting plate 3 is arranged above the water tank 1;

[0035] The vertical lifting driving assembly is fixedly installed outside the U-shaped lifting plate 3 and is used for driving the vertical lifting of the U-shaped lifting plate 3;

[0036] The screw horizontal guide horizontal driving assembly is installed in the U-shaped lifting plate 3;

[0037] The support plate 5 is two in number and is fixedly arranged at the bottom left side of the U-shaped lifting plate 3 and the bottom of the screw horizontal guide horizontal driving assembly respectively;

[0038] The conical block 501 is symmetrical and fixed on one side of the two supporting plates 5. The outer side of the conical block 501 is bonded with a conical sealing rubber sleeve 502. The supporting plate 5 is arranged to drive the conical block 501 on the right side to move left and right, so as to adjust the length of the end sealing according to the difference of the short distance pressure pipeline. The conical block 501 is arranged to seal the inside of the end of the pressure pipeline with different inner diameters. The conical sealing rubber sleeve 502 is arranged to seal better when the conical block 501 is pressed.

[0039] The air tightness stamping detection assembly is fixed on the top left side of the back-shaped lifting plate 3 and transversely penetrates the left conical block 501. The air tightness stamping detection assembly is used to detect the pressure change of the inside of the pressure pipeline after sealing, so as to judge the air tightness.

[0040] Specifically, the vertical lifting drive assembly includes a U-shaped support 2 fixed on the top of the water tank 1. An electric telescopic rod 202 is embedded and fixed on the inner wall of the top of the U-shaped support 2. The extending end of the electric telescopic rod 202 is fixedly connected with the top of the back-shaped lifting plate 3. Rectangular guide sleeves 201 are fixedly connected on both sides of the back-shaped lifting plate 3. The two rectangular guide sleeves 201 are slidingly sleeved on the U-shaped support 2. The U-shaped support 2, the electric telescopic rod 202 and the rectangular guide sleeves 201 are arranged in cooperation. The back-shaped lifting plate 3 is driven to move up and down by the electric telescopic rod 202. The back-shaped lifting plate 3 is vertically guided by the rectangular guide sleeves 201 vertically sliding on the U-shaped support 2, so as to realize the effect of vertically lifting and lowering the back-shaped lifting plate 3.

[0041] Further, the threaded horizontal guide and drive assembly comprises a screw rod 401 rotatably installed on the right inner wall of the meandering lifting plate 3, wherein the right inner wall of the meandering lifting plate 3 is fixedly connected with a bearing, the inner ring of the bearing is fixedly sleeved with the outer side of the screw rod 401, thereby achieving the effect of rotatably installing the screw rod 401, the outer side of the meandering lifting plate 3 is slidably sleeved with a rectangular sliding sleeve 402, the top inner wall and the bottom inner wall of the rectangular sliding sleeve 402 are fixedly connected with a moving seat 403, the moving seat 403 is located in the meandering lifting plate 3 and is threadedly sleeved on the screw rod 401, wherein one side of the moving seat 403 is provided with a threaded hole threadedly connected with the screw rod 401, by the threaded connection relationship between the screw rod 401 and the threaded hole, the effect of conveniently driving the moving seat 403 to horizontally displace leftward and rightward when the screw rod 401 rotates is achieved, the left inner wall of the meandering lifting plate 3 is fixedly installed with a drive motor 4, the left end of the output shaft of which is fixedly connected with the screw rod 401, and the bottom of the rectangular sliding sleeve 402 is fixedly connected with the top of the right side support plate 5; the screw rod 401, the rectangular sliding sleeve 402, the moving seat 403 and the drive motor 4 are cooperatively arranged, the drive motor 4 is utilized to drive the screw rod 401 to rotate, the screw rod 401 rotates to drive the moving seat 403 to move leftward or rightward, the moving seat 403 drives the rectangular sliding sleeve 402 to slide leftward and rightward outside the meandering lifting plate 3 to perform horizontal guide work, and the rectangular sliding sleeve 402 is utilized to drive the right side conical plug 501 to move leftward and rightward through the right side support plate 5 to perform position adjusting and plugging work.

[0042] Further, the air-tight stamping detection assembly comprises an air pump 604 fixedly installed at the top left side of the meandering lifting plate 3, the air outlet of the air pump 604 is communicated with a one-way valve 603 with an outlet at the left side, the left end of the one-way valve 603 is communicated with a right-angle pipe head 601, the bottom end of the right-angle pipe head 601 is communicated with an L-shaped air supply pipe 6, the right end of the L-shaped air supply pipe 6 penetrates the left tapered plug 501 from left to right in the transverse direction, the left side of the right-angle pipe head 601 is fixedly installed with an air pressure gauge 602, and the detection end of the air pressure gauge 602 extends into the right-angle pipe head 601, wherein the top left side of the meandering lifting plate 3 is provided with a movable perforation for allowing the L-shaped air supply pipe 6 to movably penetrate, the left side of the left side support plate 5 and the left side of the left tapered plug 501 are both provided with a pipe penetrating hole fixedly connected with the outer side of the L-shaped air supply pipe 6, and the pipe penetrating hole is used for allowing the right end of the L-shaped air supply pipe 6 to penetrate and fixedly support the right end of the L-shaped air supply pipe 6, and the top right side of the U-shaped support 2 is fixedly installed with a storage battery, and the electric telescopic rod 202, the air pump 604 and the driving motor 4 are electrically connected with the storage battery; the air pump 604, the one-way valve 603, the right-angle pipe head 601, the L-shaped air supply pipe 6 and the air pressure gauge 602 are matched to supply air in one direction into the right-angle pipe head 601 through the one-way valve 603 after plugging, the gas is injected into the pressure pipeline through the L-shaped air supply pipe 6 to increase the internal air pressure, the air pressure of the right-angle pipe head 601 is the same as that of the pressure pipeline due to the communication between the right-angle pipe head 601 and the pressure pipeline through the L-shaped air supply pipe 6, the air pressure gauge 602 detects and displays the internal pressure of the right-angle pipe head 601, after the air pump 604 is closed, whether the air leakage phenomenon exists can be judged by observing whether the air pressure value of the air pressure gauge 602 decreases within a certain time, in addition, the meandering lifting plate 3 can be lowered and lifted, when detecting or when the leakage phenomenon exists, the pressure pipeline can be lowered into the clean water during the pressure maintaining detection, when the air leakage phenomenon exists, the air leakage position will have the bubble phenomenon, which can be used for a person to judge the air leakage position and whether the air leakage phenomenon is caused by the end plugging part not being pressed tightly, thereby improving the detection accuracy.

[0043] The use method of the embodiment is as follows: when the pressure pipeline air-tight detection device is used, first, the left end of the short-distance pressure pipeline to be detected is sleeved outside the left tapered plug 501, then the driving motor 4 is started in the forward direction to drive the rotation of the screw rod 401, the rotation of the screw rod 401 drives the left movement of the moving seat 403, the moving seat 403 drives the left sliding of the rectangular sliding sleeve 402 outside the meandering lifting plate 3 to perform the horizontal guiding work, the rectangular sliding sleeve 402 drives the left movement of the right tapered plug 501 through the right support plate 5 to insert into the inside of the right end of the pressure pipeline and perform the extrusion work, the two tapered plugs 501 are used for clamping and plugging in cooperation with the tapered sealing rubber sleeves 502 arranged outside the two tapered plugs 501 to realize the effect of sealing and plugging and clamping and supporting the two ends of the pressure pipeline, in addition, the tapered shape of the tapered plug 501 can be used for plugging the inside of the end of the pressure pipeline with various inner diameters, thereby improving the applicability.

[0044] When detecting, the air pump 604 is opened after being blocked to supply air to the straight pipe head 601 through the one-way valve 603, the gas is rushed into the pressure pipeline through the L-shaped air supply pipe 6 to increase the internal gas pressure, since the straight pipe head 601 is communicated with the inside of the pressure pipeline through the L-shaped air supply pipe 6, the gas pressures are the same, the gas pressure table 602 detects and displays the pressure inside the straight pipe head 601, after the air pump 604 is closed, the personnel can judge whether there is a leakage phenomenon by observing whether the pressure value of the gas pressure table 602 decreases in a period of time, so as to realize the air tightness detection work; in addition, when the leakage causes the gas pressure to gradually decrease, the electric telescopic rod 202 is started in the forward direction to drive the L-shaped lifting plate 3 to move downward, the two rectangular guide sleeves 201 are driven by the L-shaped lifting plate 3 to slide downward on the U-shaped support 2 to realize the vertical guide work, at this time, the L-shaped lifting plate 3 drives the pressure pipeline to move downward into the clean water in the water tank 1 through the two supporting plates 5 and the two tapered blocking blocks 501, and the pressure pipeline is lowered into the clean water, when there is a leakage phenomenon, the leakage position will have a bubble phenomenon, which can be used by the personnel to judge the leakage position and whether the end sealing position is not pressed tightly to cause the leakage phenomenon, so as to improve the detection accuracy and judgment effect.

[0045] After detection, the electric telescopic rod 202 is started in the reverse direction, and the movement direction is completely opposite to that of the above-mentioned electric telescopic rod 202 started in the forward direction, so as to drive the pressure pipeline to move out of the clean water, then the driving motor 4 can be started in the reverse direction, and the movement direction is completely opposite to that of the above-mentioned driving motor 4 started in the forward direction, at this time, the right tapered blocking block 501 changes to move to the right, so as to release the clamping and blocking of the pressure pipeline, and the personnel can directly move away the pressure pipeline for replacement and continue the detection work.

[0046] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure pipe air tightness testing device comprising a water tank (1), characterized in that: Include: Water tank (1), filled with clean water inside; The back-shaped lifting plate (3) is arranged above the water tank (1); The vertical guide lifting drive assembly is fixedly installed outside the back-shaped lifting plate (3) and is used for driving the vertical lifting of the back-shaped lifting plate (3); The threaded horizontal guide horizontal drive assembly is installed in the back-shaped lifting plate (3); The support plate (5) is two, and is fixed at the bottom of the left side of the back-shaped lifting plate (3) and the bottom of the threaded horizontal guide horizontal drive assembly respectively; The conical plug (501) is two and is symmetrically arranged, and the two conical plugs (501) are fixed on the side close to the two support plates (5) respectively; The air-tight stamping detection assembly is fixed on the top left side of the back-shaped lifting plate (3) and transversely penetrates the left conical plug (501).

2. A pressure pipe gas tightness testing device according to claim 1, characterized in that: The vertical guide lifting drive assembly includes a U-shaped support (2) fixedly connected to the top of the water tank (1), an electric telescopic rod (202) embedded and fixed on the inner wall of the top of the U-shaped support (2), the extending end of the electric telescopic rod (202) is fixedly connected with the top of the back-shaped lifting plate (3), and the two sides of the back-shaped lifting plate (3) are fixedly connected with a rectangular guide sleeve (201), and the two rectangular guide sleeves (201) are slidably sleeved on the U-shaped support (2).

3. A pressure pipe gas tightness testing apparatus according to claim 2, wherein: The threaded horizontal guide horizontal drive assembly includes a screw rod (401) rotatably installed on the inner wall of the right side of the back-shaped lifting plate (3), a rectangular sliding sleeve (402) slidably sleeved on the outer side of the back-shaped lifting plate (3), a moving seat (403) fixedly connected between the top inner wall and the bottom inner wall of the rectangular sliding sleeve (402), the moving seat (403) is located in the back-shaped lifting plate (3) and is threadedly sleeved on the screw rod (401), a drive motor (4) fixedly installed on the left inner wall of the back-shaped lifting plate (3) and fixedly connected with the left end of the screw rod (401), and the bottom of the rectangular sliding sleeve (402) is fixedly connected with the top of the right support plate (5).

4. A pressure pipe gas tightness testing apparatus according to claim 3, wherein: The air-tight stamping detection assembly includes a gas pump (604) fixedly installed on the top left side of the back-shaped lifting plate (3), a one-way valve (603) with an outlet on the left side fixedly communicated with the gas outlet of the gas pump (604), a right-angle pipe head (601) fixedly communicated with the left end of the one-way valve (603), an L-shaped air supply pipe (6) fixedly communicated with the bottom end of the right-angle pipe head (601), the right end of the L-shaped air supply pipe (6) transversely penetrates the left conical plug (501) from left to right, and a gas pressure gauge (602) is fixedly installed on the left side of the right-angle pipe head (601), and the detection end of the gas pressure gauge (602) extends into the right-angle pipe head (601).

5. A pressure pipe gas tightness testing device according to claim 1, characterized in that: The left bottom of the water tank (1) is fixedly communicated with a manual drain valve.

6. A pressure pipe gas tightness testing apparatus according to claim 1, characterized in that: The outer side of the conical plug (501) is adhesively coated with a conical sealing rubber sleeve (502).

7. A pressure pipe gas tightness testing apparatus according to claim 4, wherein: The top right side of the U-shaped support (2) is fixedly installed with a storage battery, and the electric telescopic rod (202), the gas pump (604) and the drive motor (4) are electrically connected with the storage battery.

8. A pressure pipe gas tightness testing apparatus according to claim 3, characterized in that: A threaded hole threadedly connected with the screw rod (401) is formed in one side of the moving seat (403).

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