Automatic detection device for air tightness of grooved pipe fitting

Abstract

The invention relates to the technical field of fluid tightness testing, in particular to a grooved pipe fitting airtightness automatic detection device which comprises a base, a supporting frame, a sliding seat, a first plug, a gas supply assembly, a lifting seat, a rotating rod, a driver, a second plug and a pressure detection assembly. The sliding seat is arranged on the supporting frame in a sliding mode, the first plug is detachably arranged on the sliding seat, and the gas supply assembly is arranged on the sliding seat; the lifting seat is slidably arranged on the supporting frame, the rotating rod is rotatably arranged on the lifting seat, the driver is used for driving the rotating rod to rotate, the second plug is detachably arranged on the rotating rod, and the pressure detection assembly is arranged on one side of the second plug and used for detecting the pipeline pressure. The device can be applied to grooved pipe fittings of different sizes and specifications, achieves the efficient and accurate detection of the air tightness of the pipe fittings, reduces the manual intervention, and improves the detection efficiency and consistency.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid tightness testing, and in particular to an automatic gas tightness detection device for a grooved pipe fitting. Background Art

[0002] Grooved pipe fittings come in various forms, including elbows, straight pipes, triangular pipes, etc. The existing method for detecting the sealing of these grooved pipe fittings mainly uses the air pressure detection method, that is, compressed air or inert gas is filled into the pipe fitting, and the pressure change is monitored by a pressure sensor to determine whether there is a leak.

[0003] However, the above method requires installing plugs on both sides of the pipe opening to form a closed space, and then monitoring the pressure changes. Due to the differences in the position and angle of the openings at both ends of grooved pipe fittings of different shapes (such as elbows and straight pipes), it is often necessary to equip multiple sets of corresponding plug structures to meet the testing needs of different pipe types. For example, the two ends of the elbow may have a certain angle of deflection, while the two ends of the straight pipe remain parallel, and the triangular pipe requires a special three-way sealing structure. This method of customizing plugs for different pipe types not only increases the complexity of the testing equipment, but also significantly increases the testing cost. Especially when different specifications of pipe fittings need to be frequently switched on the production line, the process of replacing the plugs will also reduce the testing efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic detection device for the air tightness of grooved pipe fittings, which is designed to be applicable to grooved pipe fittings of different sizes and specifications, realize efficient and accurate detection of the air tightness of pipe fittings, reduce manual intervention, and improve detection efficiency and consistency.

[0005] To achieve the above-mentioned objectives, the present invention provides an automatic detection device for the air tightness of a grooved pipe fitting, comprising a base, a support frame, a sliding seat, a first plug, a gas supply assembly, a lifting seat, a rotating rod, a driver, a second plug and a pressure detection assembly, wherein the support frame is fixedly connected to the base and is located on one side of the base, the sliding seat is slidably arranged on the support frame, the first plug is detachably arranged on the sliding seat, and the gas supply assembly is arranged on the sliding seat; the lifting seat is slidably arranged on the support frame, the rotating rod is rotatably arranged on the lifting seat, the driver is used to drive the rotating rod to rotate, the second plug is detachably arranged on the rotating rod, and the pressure detection assembly is arranged on one side of the second plug for detecting pipeline pressure.

[0006] Wherein, the sliding seat comprises a sliding seat body, a pressing block, a rotating handle and an elastic member; The sliding seat body is slidably arranged on the support frame, the pressure block is slidably arranged on one side of the sliding seat body, the rotating handle has a protrusion, and the rotating handle is rotatably arranged on the sliding seat body. When the rotating handle is rotated, the protrusion presses down the pressure block to contact the support frame for locking, and the elastic member is arranged between the pressure block and the sliding seat body.

[0007] Wherein, the sliding seat further includes a corrector, and the corrector is used to correct the orientation of the grooved pipe.

[0008] Wherein, the corrector comprises two correction plates, a correction screw and a correction motor; The two correction plates are slidably arranged on both sides of the sliding seat body. The correction screw has two opposite threads. The correction screw is threadedly connected to the two correction plates. The output end of the correction motor is connected to the correction screw.

[0009] Wherein, the sliding seat further comprises a blanking cylinder, a connecting rod, a support block and a second elastic member; The support block is slidably arranged on one side of the first plug, the connecting rod is rotatably connected to the support block, the output end of the blanking cylinder is rotatably connected to the connecting rod, and the second elastic member is arranged between the support block and the sliding seat body.

[0010] Wherein, the gas supply assembly includes a sealing ring, a rotating support plate, an air pipe and an air pump; The rotating support disk is rotatably arranged on the sliding seat body, the sealing ring is arranged on the top of the rotating support disk, the first plug is arranged on the sealing ring, the air pipe is connected to the rotating support disk, and the air pump is connected to the air pipe.

[0011] Wherein, the rotating rod comprises a rotating rod body, a sliding rod, a pressing block and a locking screw; The rotating rod body is rotatably arranged on the lifting seat, the sliding rod is slidably arranged on the rotating rod body, the pressing block is slidably arranged on one side of the sliding rod, and the locking screw is threadedly connected to the sliding rod and rotatably connected to the pressing block.

[0012] Wherein, the driver comprises a driving cylinder, a connecting block and a driving slider; The driving cylinder is rotatably arranged on the supporting frame, the driving slider is slidably arranged on the sliding rod, and the connecting block is rotatably connected to the driving slider and connected to the output end of the driving cylinder.

[0013] Wherein, the pressure detection component includes a pressure detection unit, a pressure calculation unit and a judgment unit; The pressure detection unit is used to obtain pressure data in the grooved pipe fitting, the pressure calculation unit is used to calculate the pipeline pressure value based on the pressure data, and the judgment unit is used to judge the air tightness of the pipeline according to the fluctuation of the pipeline pressure value.

[0014] Wherein, the second plug includes a plug body and a conical ring, and the conical ring is arranged on one side of the plug body.

[0015] The present invention provides an automatic gas tightness detection device for grooved pipe fittings. The base carries and supports all other structural components and has good stability and load-bearing capacity. The support frame is fixedly connected to the base and is located on one side of the base.

[0016] The sliding seat slides along the support frame and can be adjusted according to the bending radius of the grooved pipe to be inspected, thereby adapting to the inspection requirements of pipes of different specifications. The first plug is detachably mounted on the sliding seat and can be replaced according to different pipe diameters to achieve effective sealing of one end of the pipe.

[0017] The gas supply assembly is arranged on the sliding seat and generally includes components such as a gas input pipeline, a solenoid valve, and a pressure regulating valve, and is used to inject compressed air or other inert gas into the pipe under test to establish the pressure environment required for the test.

[0018] The lifting seat is similarly slidably mounted on the support frame, with its movement direction perpendicular to the sliding seat or adjustable, driving the upper rotating rod and the second plug up and down. The rotating rod is pivotally mounted on the lifting seat via a bearing or hinged structure. Driven by a driver, it can rotate a certain angle, thereby achieving precise docking and automatic locking of the second plug with the other end of the pipe. The driver, which can be a power actuator such as a servo motor, pneumatic motor, or hydraulic cylinder, drives the rotating rod to rotate, further driving the second plug to complete the clamping or release operation.

[0019] The second plug is also detachably mounted on the rotating rod and works in conjunction with the first plug to seal both ends of the grooved pipe. The pressure detection assembly is mounted on one side of the second plug and typically includes a pressure sensor, a digital display, and a data acquisition module. This is used to detect and record pressure changes within the pipe in real time, thereby determining whether there is leakage.

[0020] Through the above scheme, the automatic detection device for the air tightness of grooved pipe fittings can be applied to grooved pipe fittings of different sizes and specifications. Through mechanical automation means, efficient and accurate detection of the air tightness of pipe fittings is achieved, which reduces manual intervention and improves detection efficiency and consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a structural diagram of an automatic detection device for air tightness of grooved pipe fittings of the present invention.

[0023] Figure 2 This is the right side structural diagram of an automatic detection device for air tightness of grooved pipe fittings of the present invention.

[0024] Figure 3 yes Figure 2 A partial enlargement of detail B.

[0025] Figure 4 It is a cross-sectional structural diagram of an automatic detection device for air tightness of a grooved pipe fitting according to the present invention.

[0026] Figure 5 yes Figure 4 A partial enlargement of detail A.

[0027] Figure 6 It is a front view of an automatic detection device for air tightness of grooved pipe fittings of the present invention.

[0028] Figure 7 It is a structural diagram of the pressure detection component of the present invention.

[0029] Base 101, support frame 102, sliding seat 103, first plug 104, lifting seat 106, rotating rod 107, driver 108, second plug 109, pressure detection assembly 110, sliding seat body 111, pressure block 112, rotating handle 113, elastic member 114, correction plate 115, correction screw 116, correction motor 117, unloading cylinder 118, connecting rod 119, support block 120, second elastic member 121, sealing ring 122, rotating support plate 123, air pipe 124, air pump 125, rotating rod body 126, sliding rod 127, pressing block 128, locking screw 129, driving cylinder 130, connecting block 131, driving slider 132, pressure detection unit 133, pressure calculation unit 134, judgment unit 135, plug body 136, tapered ring 137. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0032] See also Figures 1 to 7 The present invention provides an automatic detection device for gas tightness of grooved pipe fittings, including a base 101, a support frame 102, a sliding seat 103, a first plug 104, a gas supply assembly, a lifting seat 106, a rotating rod 107, a driver 108, a second plug 109 and a pressure detection assembly 110. The support frame 102 is fixedly connected to the base 101 and is located on one side of the base 101. The sliding seat 103 is slidably arranged on the support frame 102. The first plug 104 is detachably arranged on the sliding seat 103. The gas supply assembly is arranged on the sliding seat 103; the lifting seat 106 is slidably arranged on the support frame 102, the rotating rod 107 is rotatably arranged on the lifting seat 106, the driver 108 is used to drive the rotating rod 107 to rotate, the second plug 109 is detachably arranged on the rotating rod 107, and the pressure detection assembly 110 is arranged on one side of the second plug 109 for detecting pipeline pressure.

[0033] In this embodiment, the base 101 carries and supports all other structural components and has good stability and load-bearing capacity. The support frame 102 is fixedly connected to the base 101 and is located on one side of the base 101.

[0034] The sliding seat 103 slides along the support frame 102 and can be adjusted according to the bend radius of the grooved pipe to be inspected, thereby adapting to the inspection requirements of pipes of different specifications. The first plug 104 is removably mounted on the sliding seat 103 and can be replaced according to different pipe diameters to effectively seal one end of the pipe. In particular, if inspecting straight pipes, the lifting seat 106 needs to be raised so that the rotating rod 107 can be rotated to a position horizontal with the sliding seat 103.

[0035] The gas supply assembly is disposed on the sliding seat 103 and generally includes components such as a gas input pipeline, a solenoid valve, and a pressure regulating valve, and is used to inject compressed air or other inert gas into the tested pipe to establish the pressure environment required for the test.

[0036] The lifting base 106 is similarly slidably mounted on the support frame 102, with its movement direction perpendicular to or adjustable from that of the sliding base 103. It is used to drive the upward and downward movement of the rotating rod 107 and the second plug 109 above it. The rotating rod 107 is pivotally mounted on the lifting base 106 via a bearing or hinged structure. Driven by a driver 108, it can rotate a certain angle, thereby achieving precise docking and automatic locking of the second plug 109 with the other end of the pipe. The driver 108 can be a power actuator such as a servo motor, pneumatic motor, or hydraulic cylinder, driving the rotation of the rotating rod 107, which in turn drives the second plug 109 to complete the clamping or release operation.

[0037] The second plug 109 is also detachably mounted on the rotating rod 107 and works in conjunction with the first plug 104 to seal both ends of the grooved pipe. The pressure detection assembly 110 is mounted on one side of the second plug 109 and typically includes a pressure sensor, a digital display, and a data acquisition module. It is used to detect and record pressure changes within the pipe in real time, thereby determining whether there is leakage.

[0038] Through the above scheme, the automatic detection device for the air tightness of grooved pipe fittings can be applied to grooved pipe fittings of different sizes and specifications. Through mechanical automation means, efficient and accurate detection of the air tightness of pipe fittings is achieved, which reduces manual intervention and improves detection efficiency and consistency.

[0039] The sliding seat 103 includes a sliding seat body 111, a pressure block 112, a rotating handle 113 and an elastic member 114; the sliding seat body 111 is slidably set on the support frame 102, the pressure block 112 is slidably set on one side of the sliding seat body 111, the rotating handle 113 has a protrusion, and the rotating handle 113 is rotatably set on the sliding seat body 111. When the rotating handle 113 rotates, the protrusion presses down the pressure block 112 to contact the support frame 102 for locking, and the elastic member 114 is set between the pressure block 112 and the sliding seat body 111.

[0040] The sliding seat body 111 can slide horizontally along the guide rail or slide groove provided on the support frame 102, so as to facilitate position adjustment according to the length of the groove pipe to be inspected, and adapt to the inspection requirements of workpieces of different sizes. The pressure block 112 is slidably provided on one side of the sliding seat body 111, and can move freely in a direction perpendicular to the sliding direction, and is used to form friction with the support frame 102 to achieve a locking action. The rotating handle 113 is rotatably provided on the sliding seat body 111 through a hinge shaft or a rotating shaft, and a protrusion is provided at its end. When the operator manually rotates the handle, the protrusion is pressed down and contacts the pressure block 112, pushing the pressure block 112 to move downward, so that it presses against the surface of the support frame 102, thereby fixing the overall position of the sliding seat 103.

[0041] The elastic member 114 (such as a spring or a rubber pad) is provided between the pressing block 112 and the sliding seat body 111. The elastic member 114 resets the pressing block 112 to the lifted state when no external force is applied, so that the sliding seat 103 remains in a slidable state; and when locking is required, the pressing block 112 is pressed down to generate sufficient friction force to stably fix the sliding seat 103, thereby preventing displacement or shaking during the detection process.

[0042] The sliding seat 103 further includes a corrector, which is used to correct the orientation of the grooved pipe.

[0043] In order to ensure that the grooved pipe is in a correct posture when installed on the detection device and to avoid poor sealing or detection failure due to deviation or tilt, the sliding seat 103 is also equipped with a corrector.

[0044] The corrector includes two correction plates 115, a correction screw 116 and a correction motor 117; the two correction plates 115 are slidably arranged on both sides of the sliding seat body 111, and the correction screw 116 has two opposite sections of threads. The correction screw 116 is threadedly connected to the two correction plates 115, and the output end of the correction motor 117 is connected to the correction screw 116.

[0045] The two correction plates 115 are slidably disposed on both sides of the sliding seat body 111 and can be synchronously moved closer or further away in the lateral direction to clamp and adjust the position of the grooved pipe fitting. The two ends of the correction screw 116 are respectively threadedly connected to the two correction plates 115, and the thread directions are opposite. When the screw rotates, the two correction plates 115 will simultaneously move closer inward or away from outward. The output end of the correction motor 117 is transmission-connected to the correction screw 116 and can be automatically started by the control system to accurately control the movement distance of the correction plate 115, thereby achieving automatic calibration of the center line of the grooved pipe fitting, ensuring its coaxial alignment with the first plug 104 and the second plug 109, and improving the sealing effect and detection accuracy.

[0046] The sliding seat 103 also includes a blanking cylinder 118, a connecting rod 119, a support block 120 and a second elastic member 121; the support block 120 is slidably arranged on one side of the first plug 104, the connecting rod 119 is rotatably connected to the support block 120, the output end of the blanking cylinder 118 is rotatably connected to the connecting rod 119, and the second elastic member 121 is arranged between the support block 120 and the sliding seat body.

[0047] The support block 120 is slidably mounted on one side of the first plug 104 and is used to provide temporary support for the tested grooved pipe after the test is completed. The connecting rod 119 is rotatably connected to the support block 120, and the other end is connected to the output end of the blanking cylinder 118. When the blanking cylinder 118 is activated, it drives the connecting rod 119 to swing, thereby pushing the support block 120 to move upward and release the grooved pipe it is carrying. The second elastic member 121 is disposed between the support block 120 and the sliding seat body 111 and is used to restore the support block 120 to its initial support height when no external force is applied, ensuring the stability and consistency of each blanking action.

[0048] The gas supply assembly includes a sealing ring 122, a rotating support disk 123, an air pipe 124 and an air pump 125; the rotating support disk 123 is rotatably set on the sliding seat body 111, the sealing ring 122 is set on the top of the rotating support disk 123, the first plug 104 is set on the sealing ring 122, the air pipe 124 is connected to the rotating support disk 123, and the air pump 125 is connected to the air pipe 124.

[0049] The rotating support plate 123 is rotatably mounted on the sliding seat body 111, typically utilizing a bearing or slewing support structure for flexible rotation. This rotating support plate 123 not only supports the first plug 104 and related components but also serves as an intermediate connection platform for gas transmission. The provision of the rotating support plate 123 allows the first plug 104 to rotate freely within a certain angle range, thereby better accommodating grooved pipe ends at different installation angles and improving docking flexibility and adaptability.

[0050] The sealing ring 122 is arranged on the top surface of the rotating support disk 123 and is located between the bottom of the first plug 104 and the rotating support disk 123. The sealing ring 122 is usually made of highly elastic, pressure-resistant and wear-resistant rubber or silicone material, and has good sealing performance and a long service life. The first plug 104 is detachably arranged on the sealing ring 122 and can be fixed above the rotating support disk 123 by threaded connection, snap-on structure or other quick clamping methods. The inner cavity of the first plug 104 is provided with an air supply channel, which is connected to the air pipe 124, so that the compressed gas can flow smoothly into the interior of the measured pipe. One end of the air pipe 124 is connected to the air supply channel inside the rotating support disk 123, and the other end is connected to the output end of the air pump 125, forming a complete gas delivery path. The air pipe 124 usually adopts a flexible high-pressure resistant hose to adapt to the rotational movement of the rotating support disk 123, and at the same time has good air tightness and fatigue resistance. The air pump 125 provides a power source for the entire gas supply assembly and is used to inject compressed air or inert gas into the grooved pipe to reach a set test pressure.

[0051] The rotating rod 107 includes a rotating rod body 126, a sliding rod 127, a clamping block 128 and a locking screw 129; the rotating rod body 126 is rotatably set on the lifting seat 106, the sliding rod 127 is slidably set on the rotating rod body 126, the clamping block 128 is slidably set on one side of the sliding rod 127, and the locking screw 129 is threadedly connected to the sliding rod 127 and is rotatably connected to the clamping block 128.

[0052] The rotating rod body 126 is rotatably set on the lifting seat 106 through a bearing or a hinge structure. One end of the rotating rod body 126 is used to carry components such as the sliding rod 127 and the clamping block 128, and the other end can be connected to a driving mechanism (such as a servo motor, a cylinder, etc.) to achieve controlled rotation.

[0053] The rotating rod body 126 has good structural strength and rigidity, and is usually made of metal materials (such as aluminum alloy, stainless steel, etc.). It can withstand the sealing reaction force under a certain pressure and avoid dislocation or loosening due to uneven force.

[0054] The sliding rod 127 is slidably mounted on the rotating rod body 126, generally extending along its axial direction, allowing for forward and backward adjustment based on the length and position of the pipe being tested. The design of the sliding rod 127 provides the entire rotating rod 107 system with a certain degree of flexibility, allowing it to accommodate grooved pipes of varying lengths and sizes, thereby enhancing the versatility and adaptability of the device.

[0055] The pressing block 128 is slidably disposed on one side of the sliding rod 127 and can move in a direction perpendicular to the sliding rod 127 under the guidance of the sliding rod 127 .

[0056] The locking screw 129 is threadedly connected to the sliding rod 127, and one end of the locking screw 129 is rotatably connected to the pressing block 128. When the operator rotates the locking screw 129 clockwise or counterclockwise, the screw pushes or pulls the pressing block 128 to move laterally along the sliding rod 127, thereby fixing the sliding rod 127 relative to the rotating rod body 126.

[0057] The driver 108 includes a driving cylinder 130, a connecting block 131 and a driving slider 132; the driving cylinder 130 is rotatably set on the support frame 102, and the driving slider 132 is slidably set on the sliding rod 127. The connecting block 131 is rotatably connected to the driving slider 132 and is connected to the output end of the driving cylinder 130.

[0058] The driver 108 is used to drive the rotating rod 107 to move, so that the second plug 109 can be accurately docked and pressed against one end of the grooved pipe to be tested, forming a sealed space.

[0059] The drive cylinder 130 is pivotally mounted on the support frame 102 via an articulated shaft or rotating axle. It serves as a power output element, providing linear reciprocating motion. Its output end is retractable, driving subsequent mechanisms to perform clamping or releasing actions. The connecting block 131 is a transitional connecting member. One end is pivotally connected to the piston rod end of the drive cylinder 130, and the other end is connected to the drive slider 132, facilitating force transmission and direction conversion.

[0060] The driving slider 132 is disposed on the sliding rod 127 of the rotating rod 107 and can move along its length. When the driving cylinder 130 pushes the connecting block 131, the driving slider 132 moves accordingly, driving the rotating rod body 126 to rotate, thereby controlling the swing angle and position of the second plug 109.

[0061] Before testing begins, the control system activates the drive cylinder 130, extending its piston rod and pushing the connecting block 131 forward, which in turn drives the drive slider 132 to slide along the sliding rod 127. Because the rotating rod body 126 and the lifting base 106 are pivotally connected, the linear displacement of the drive slider 132 is converted into a rotational movement of the rotating rod 107, ultimately causing the second plug 109 to precisely fit the other end of the grooved pipe and apply sufficient pressure to achieve a good seal.

[0062] The pressure detection component 110 includes a pressure detection unit 133, a pressure calculation unit 134 and a judgment unit 135; the pressure detection unit 133 is used to obtain pressure data in the grooved pipe fitting, the pressure calculation unit 134 is used to calculate the pipeline pressure value based on the pressure data, and the judgment unit 135 is used to judge the air tightness of the pipeline according to the fluctuation of the pipeline pressure value.

[0063] The pressure detection unit 133 is located on one side of the second plug 109 (or integrated within the plug), typically employing a highly sensitive pressure sensor, such as a piezoresistive, capacitive, or MEMS sensor. This allows for real-time acquisition of pressure data within the grooved tubing during the inflation and pressure-holding phases, ensuring that key parameters during the testing process are measurable and controllable.

[0064] The pressure calculation unit 134 is in communication with the pressure detection unit 133 and receives the pressure signal sent by it. The collected pressure data is filtered to remove noise interference; then the actual pressure value in the current pipeline system is calculated. The judgment unit 135 makes a comprehensive judgment based on the result provided by the pressure calculation unit 134 and the preset judgment logic (such as pressure drop threshold, pressure holding time, fluctuation frequency, etc.). When the pressure remains stable within the allowable range during the test, it is judged as "air tightness qualified"; if there is an obvious pressure drop or fluctuation, it is judged as "there is a leak", and the operator is prompted to handle it through the alarm device; the test results can be displayed through the human-machine interface, and an electronic report can be generated to facilitate quality tracking and data analysis.

[0065] The second plug 109 includes a plug body 136 and a tapered ring 137 . The tapered ring 137 is disposed on one side of the plug body 136 .

[0066] The main structure of the plug body 136 is typically made of a high-strength metal material (such as stainless steel or aluminum alloy), with a surface anti-corrosion treatment for excellent wear resistance and pressure resistance. The tapered ring 137 helps increase the contact area and enhance self-alignment, ensuring a reliable seal even with slight eccentricity.

[0067] The conical ring 137 and the plug body 136 are integrated into a design or a quick-change structure, which is convenient for adapting to different pipe diameters.

[0068] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. An automatic gas tightness detection device for grooved pipe fittings, comprising a base and a support frame, wherein the support frame is fixedly connected to the base and is located on one side of the base, characterized in that: The invention also includes a sliding seat, a first plug, a gas supply assembly, a lifting seat, a rotating rod, a driver, a second plug and a pressure detection assembly, wherein the sliding seat is slidably arranged on the support frame, the first plug is detachably arranged on the sliding seat, and the gas supply assembly is arranged on the sliding seat; The lifting seat is slidably arranged on the support frame, the rotating rod is rotatably arranged on the lifting seat, the driver is used to drive the rotating rod to rotate, the second plug is detachably arranged on the rotating rod, and the pressure detection component is arranged on one side of the second plug for detecting pipeline pressure.

2. The automatic gas tightness detection device for grooved pipes according to claim 1, characterized in that: The sliding seat comprises a sliding seat body, a pressing block, a rotating handle and an elastic member; The sliding seat body is slidably arranged on the support frame, the pressure block is slidably arranged on one side of the sliding seat body, the rotating handle has a protrusion, and the rotating handle is rotatably arranged on the sliding seat body. When the rotating handle is rotated, the protrusion presses down the pressure block to contact the support frame for locking, and the elastic member is arranged between the pressure block and the sliding seat body.

3. The automatic gas tightness detection device for grooved pipes according to claim 2, characterized in that: The sliding seat further comprises a corrector, which is used to correct the orientation of the grooved pipe.

4. An automatic gas tightness detection device for grooved pipes according to claim 3, characterized in that: The corrector includes two correction plates, a correction screw and a correction motor; The two correction plates are slidably arranged on both sides of the sliding seat body. The correction screw has two opposite threads. The correction screw is threadedly connected to the two correction plates. The output end of the correction motor is connected to the correction screw.

5. The automatic gas tightness detection device for grooved pipes according to claim 4, characterized in that: The sliding seat also includes a blanking cylinder, a connecting rod, a support block and a second elastic member; The support block is slidably arranged on one side of the first plug, the connecting rod is rotatably connected to the support block, the output end of the blanking cylinder is rotatably connected to the connecting rod, and the second elastic member is arranged between the support block and the sliding seat body.

6. An automatic gas tightness detection device for grooved pipes according to claim 5, characterized in that: The gas supply assembly includes a sealing ring, a rotating support plate, an air pipe and an air pump; The rotating support disk is rotatably arranged on the sliding seat body, the sealing ring is arranged on the top of the rotating support disk, the first plug is arranged on the sealing ring, the air pipe is connected to the rotating support disk, and the air pump is connected to the air pipe.

7. An automatic gas tightness detection device for grooved pipes according to claim 6, characterized in that: The rotating rod comprises a rotating rod body, a sliding rod, a pressing block and a locking screw; The rotating rod body is rotatably arranged on the lifting seat, the sliding rod is slidably arranged on the rotating rod body, the pressing block is slidably arranged on one side of the sliding rod, and the locking screw is threadedly connected to the sliding rod and rotatably connected to the pressing block.

8. An automatic gas tightness detection device for grooved pipes according to claim 7, characterized in that: The driver comprises a driving cylinder, a connecting block and a driving slider; The driving cylinder is rotatably arranged on the supporting frame, the driving slider is slidably arranged on the sliding rod, and the connecting block is rotatably connected to the driving slider and connected to the output end of the driving cylinder.

9. An automatic gas tightness detection device for grooved pipes according to claim 8, characterized in that: The pressure detection component includes a pressure detection unit, a pressure calculation unit and a judgment unit; The pressure detection unit is used to obtain pressure data in the grooved pipe fitting, the pressure calculation unit is used to calculate the pipeline pressure value based on the pressure data, and the judgment unit is used to judge the air tightness of the pipeline according to the fluctuation of the pipeline pressure value.

10. An automatic gas tightness detection device for grooved pipes according to claim 9, characterized in that: The second plug includes a plug body and a tapered ring, and the tapered ring is arranged on one side of the plug body.

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