Water pipeline air tightness test tool

Abstract

The utility model relates to the technical field of pipeline sealing detection, in particular to a water pipeline air tightness testing tool which comprises a base, a first clamping plate is fixedly welded to one end of the top face of the base, and a second clamping plate symmetrical to the first clamping plate is slidably connected to the top end of the base. A water pipeline is clamped between the first clamping plate and the second clamping plate through sealing blocks arranged on the opposite side walls of the first clamping plate and the second clamping plate, sealing assemblies are installed on the sealing blocks, and an inflation assembly is installed on the top face of the base and located on the outer side of the first clamping plate. According to the air tightness test tool for the water pipeline, the water pipelines with different lengths can be clamped and tested through the first clamping plate, the second clamping plate and the threaded rod, and meanwhile, the first fixing ring, the second fixing ring and the rubber ring are arranged in the sealing assembly and can strictly seal the openings in the two ends of the water pipeline to be tested.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline sealing detection, in particular to a water pipeline air tightness testing tool. Background Art

[0002] Water pipes are pipes for water supply. Modern decoration water pipes are all built into the wall. There are three types of water pipes. The first type is metal pipes, such as hot-dip cast iron pipes, copper pipes, stainless steel pipes, etc. lined with plastic. The second type is plastic-coated metal pipes, such as steel-plastic composite pipes, aluminum-plastic composite pipes, etc. The third type is plastic pipes, such as PB pipes, PP-R pipes, etc. Before using water pipes, their sealing needs to be tested.

[0003] The utility model patent with authorization announcement number CN219495581U discloses a municipal water supply and drainage pipe sealing detection device, including a U-shaped frame, a water tank is fixedly connected to the bottom of the inner wall of the U-shaped frame, and an inclined blanking plate is fixedly connected to the front of the water tank, and inclined Z-shaped slide grooves are opened on both sides of the U-shaped frame.

[0004] Although the technical solution can control the sliding plate to move along the inclined Z-shaped slide groove through the setting of the control component, forming a movement from low to high, thereby forming the loading work of the drainage pipe for testing, and through the setting of the unloading plate, the drainage pipe after testing can be unloaded, effectively combining the loading and unloading of the drainage pipe; but the technical solution has a poor sealing effect on both ends of the water pipe when testing the sealing. In view of this, we propose a water pipe air tightness test tool. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a water pipe air tightness testing tool.

[0006] In a first aspect, the present application provides a water pipe air tightness test tool, comprising a base, a first clamping plate is welded and fixed at one end of the top surface of the base, a second clamping plate symmetrical to the first clamping plate is slidably connected to the top of the base, a water pipe is clamped between the first clamping plate and the second clamping plate through a sealing block provided on the opposite side walls thereof, a sealing assembly is installed on the sealing block, and an inflatable assembly is installed on the top surface of the base outside the first clamping plate;

[0007] The sealing assembly comprises a first fixing ring and a second fixing ring respectively located at the left and right ends of the outer circumferential wall of the sealing block, a rubber ring is arranged between the first fixing ring and the second fixing ring, and the first fixing ring slides back and forth along the outer circumferential wall of the sealing block through a plurality of sliding rods arranged on the inner side wall thereof;

[0008] The inflating assembly includes an air pump installed on the top surface of the base. The air pump is connected to the inside of the water pipe through a trachea that passes through the side wall of the first clamping plate and the sealing block. A pressure gauge is provided on the trachea.

[0009] According to the technical solution provided by the embodiment of the present application, a T-shaped sliding groove is formed on the top surface of the base. A threaded rod is rotatably connected in the T-shaped sliding groove. A motor is installed on one side of the base, and the output shaft of the motor is coaxially connected to the threaded rod.

[0010] According to the technical solution provided by the embodiment of the present application, a T-shaped slider adapted to the T-shaped sliding groove is integrally formed at the center of the bottom end of the second clamping plate. A threaded hole adapted to the threaded rod is formed in the middle of the T-shaped slider.

[0011] According to the technical solution provided by the embodiment of the present application, rod grooves adapted to the respective sliding rods and corresponding to them in position are formed in the sealing block at positions corresponding to the several sliding rods. A pull rod is welded and fixed at the intersection of the several sliding rods. One end of the pull rod away from the first fixing ring extends out of the side wall of the first clamping plate or the second clamping plate where it is located and is integrally formed with a handle. A first spring is sleeved on the outer side wall of the pull rod near the first fixing ring.

[0012] According to the technical solution provided by the embodiment of the present application, the second fixing ring is welded and fixed on the circumferential outer side wall of the sealing block. Fixing grooves for accommodating the rubber ring to be snapped into are formed in the middle of the opposite annular surfaces of the first fixing ring and the second fixing ring.

[0013] According to the technical solution provided by the embodiment of the present application, a groove is formed on the side wall of the rod body of the pull rod. A fixing block in the shape of a right triangle is hinged in the groove through a hinge column. One of the acute ends of the fixing block extends out of the groove. A second spring is provided between the bottom of the right side surface of the fixing block away from the end where it extends out of the pull rod and the bottom side wall of the groove.

[0014] According to the technical solution provided by the embodiment of the present application, when the pull rod is pulled outwards, when the inner wall of the through hole on the side wall of the first clamping plate or the second clamping plate presses against the exposed corner of the fixing block, the fixing block can be retracted into the groove, and at this time the second spring is in a compressed state.

[0015] According to the technical solution provided by the embodiment of the present application, when the fixing block is pulled out to the outside of the side wall of the first clamping plate or the second clamping plate and the side surface of the fixing block abuts against the outer side wall of the first clamping plate or the second clamping plate, the rubber ring is squeezed and deformed to closely fit the inner side wall of the water pipe, and at this time the first spring is compressed to the shortest state.

[0016] In summary, the present technical solution specifically discloses a water pipeline airtightness test tooling, which includes a base. One end of the top surface of the base is welded and fixed with a first clamping plate. A second clamping plate symmetrical to the first clamping plate is slidably connected to the top end of the base. A water pipeline is clamped between the first clamping plate and the second clamping plate through a sealing block provided on their opposite side walls. A sealing assembly is installed on the sealing block. An inflation assembly is installed on the top surface of the base outside the first clamping plate. The first clamping plate, the second clamping plate and the threaded rod can be used to clamp and test water pipelines of different lengths. At the same time, the first fixing ring, the second fixing ring and the rubber ring in the sealing assembly can strictly seal the openings at both ends of the water pipeline to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of the non-restrictive embodiments with reference to the following drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 is a cross-sectional view of the overall structure of the utility model;

[0020] Figure 3 is an exploded view of the overall structure of the utility model;

[0021] Figure 4 is a cross-sectional view of the sealing block structure in the utility model;

[0022] Figure 5 is an exploded view of the sealing assembly structure in the utility model;

[0023] Figure 6 is a cross-sectional view of the pull rod structure in the utility model;

[0024] Figure 7 is an exploded view of the pull rod structure in the utility model.

[0025] In the figure:

[0026] 1. Base; 11. T-shaped chute;

[0027] 2. First clamping plate;

[0028] 3. Second clamping plate; 31. T-shaped slider; 32. Threaded hole;

[0029] 4. Threaded rod;

[0030] 5. Motor;

[0031] 6. Sealing block; 61. Rod groove;

[0032] 7. Sealing assembly; 71. First fixing ring; 711. Slide bar; 72. Second fixing ring; 73. Rubber ring; 74. Pull rod; 741. Handle; 742. Groove; 743. Fixed block; 744. Second spring; 745. Hinge column; 75. First spring;

[0033] 8. Water pipeline;

[0034] 9. Inflation assembly; 91. Air pump; 92. Air pipe; 93. Pressure gauge. Detailed implementation manners

[0035] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, rather than limiting the utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the utility model are shown in the drawings.

[0036] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0037] Please refer to Figures 1-7 , a water pipeline airtightness test tooling, which includes a base 1. One end of the top surface of the base 1 is welded and fixed with a first clamping plate 2. A second clamping plate 3 symmetric to the first clamping plate 2 is slidably connected to the top end of the base 1. A water pipeline 8 is clamped between the first clamping plate 2 and the second clamping plate 3 by a sealing block 6 provided on their relative side walls. A sealing assembly 7 is installed on the sealing block 6. An inflation assembly 9 is installed on the top surface of the base 1 outside the first clamping plate 2;

[0038] The sealing assembly 7 includes a first fixing ring 71 and a second fixing ring 72 respectively located at the left and right ends of the circumferential outer side wall of the sealing block 6. A rubber ring 73 is provided between the first fixing ring 71 and the second fixing ring 72. The first fixing ring 71 slides back and forth along the circumferential outer side wall of the sealing block 6 through a plurality of slide bars 711 provided on its inner side wall;

[0039] The inflation assembly 9 includes an air pump 91 installed on the top surface of the base 1. The air pump 91 is connected to the inside of the water pipeline 8 through an air pipe 92 passing through the side wall of the first clamping plate 2 and the sealing block 6. A pressure gauge 93 is provided on the air pipe 92.

[0040] In this embodiment, a T-shaped chute 11 is opened on the top surface of the base 1. A threaded rod 4 is rotatably connected in the T-shaped chute 11. A motor 5 is installed on one side of the base 1. The output shaft of the motor 5 is coaxially connected to the threaded rod 4; the motor 5 provides power for the rotation of the threaded rod 4.

[0041] Further, a T-shaped slider 31 adapted to the T-shaped chute 11 is integrally formed at the center of the bottom end of the second clamping plate 3, and a threaded hole 32 adapted to the threaded rod 4 is provided in the middle of the T-shaped slider 31; the rotation of the threaded rod 4 drives the second clamping plate 3 to slide back and forth along the T-shaped chute 11.

[0042] Secondly, rod grooves 61 adapted to the sizes of and corresponding to the positions of the plurality of sliding rods 711 are provided in the sealing block 6 at positions corresponding to the plurality of sliding rods 711. A pull rod 74 is welded and fixed at the intersection of the plurality of sliding rods 711. One end of the pull rod 74 far from the first fixing ring 71 extends out of the side wall of the first clamping plate 2 or the second clamping plate 3 where it is located and is integrally formed with a handle 741. A first spring 75 is sleeved on the outer side wall of the pull rod 74 close to the first fixing ring 71; the adapted sliding rods 711 and rod grooves 61 facilitate the back-and-forth sliding of the first fixing ring 71 on the sealing block 6, and the first spring 75 causes the first fixing ring 71 to return to its original position after sliding.

[0043] Further, a second fixing ring 72 is welded and fixed on the circumferential outer side wall of the sealing block 6. Fixing grooves for accommodating the rubber ring 73 to be snapped into are provided in the middle of the opposite annular surfaces of the first fixing ring 71 and the second fixing ring 72; the design of the fixing grooves facilitates the installation of the rubber ring 73.

[0044] Secondly, a groove 742 is provided on the side wall of the rod body of the pull rod 74. A right-angled triangular fixing block 743 is hinged in the groove 742 through a hinge post 745. One acute end of the fixing block 743 extends out of the groove 742, and a second spring 744 is provided between the bottom of the right-angled side surface of the fixing block 743 far from the end where it extends out of the pull rod 74 and the bottom side wall of the groove 742; the second spring 744 enables the fixing block 743 to automatically pop out after being pressed.

[0045] Further, when the pull rod 74 is pulled outwards, when a corner of the fixing block 743 exposed is squeezed by the inner wall of the through hole on the side wall of the first clamping plate 2 or the second clamping plate 3, the fixing block 743 can be retracted into the groove 742, and at this time the second spring 744 is in a compressed state; the compressed second spring 744 can pop out the retracted fixing block 743.

[0046] Secondly, when the fixing block 743 is pulled out to the outside of the side wall of the first clamping plate 2 or the second clamping plate 3 and the side surface of the fixing block 743 abuts against the outer side wall of the first clamping plate 2 or the second clamping plate 3, the rubber ring 73 is squeezed and deformed to closely fit the inner side wall of the water pipe 8, and at this time the first spring 75 is compressed to the shortest state; the close fit of the rubber ring 73 and the inner side wall of the water pipe 8 greatly improves the sealing effect, and the compressed first spring 75 enables the pull rod 74 to return to its original position after the fixing block 743 is pressed.

[0047] Working principle: When the water pipeline airtightness test tooling of the utility model is in use, the user places the water pipeline 8 between the first clamping plate 2 and the second clamping plate 3. The driving motor 5 drives the threaded rod 4 to rotate, causing the second clamping plate 3 to slide along the T-shaped chute 11 towards the first clamping plate 2 until the water pipeline 8 is clamped. Then, the user pulls the pull rod 74 through the handle 741, causing the first fixing ring 71 to slide towards the second fixing ring 72. As a result, the rubber ring 73 folds and contacts the inner side wall of the water pipeline 8. When the fixing block 743 is clamped with the outer side wall of the first clamping plate 2 or the second clamping plate 3, the rubber ring 73 is closely attached to the inner side wall of the water pipeline 8. Finally, the air pump 91 is started, and air is inflated into the water pipeline 8 through the air pipe 92 until a certain air pressure value is reached. Then, the change of the pressure gauge 93 is observed to judge the airtightness of the water pipeline 8.

[0048] The above description is only the preferred embodiment of the present application and an explanation of the applied technical principle. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by the specific combination of the above technical features. It should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by the mutual replacement of the above features and the technical features disclosed in the present application but not limited to having similar functions.

Claims

1. An airtightness testing tooling for water pipelines, comprising a base (1), characterized in that: One end of the top surface of the base (1) is welded and fixed with a first clamping plate (2). A second clamping plate (3) symmetrical to the first clamping plate (2) is slidably connected to the top end of the base (1). A water pipe (8) is clamped between the first clamping plate (2) and the second clamping plate (3) by a sealing block (6) provided on their opposite side walls. A sealing assembly (7) is installed on the sealing block (6). An inflation assembly (9) is installed on the top surface of the base (1) outside the first clamping plate (2). The sealing assembly (7) includes a first fixing ring (71) and a second fixing ring (72) respectively located at the left and right ends of the circumferential outer side wall of the sealing block (6). A rubber ring (73) is provided between the first fixing ring (71) and the second fixing ring (72). The first fixing ring (71) slides back and forth along the circumferential outer side wall of the sealing block (6) through a plurality of sliding rods (711) provided on its inner side wall. The inflation assembly (9) includes an air pump (91) installed on the top surface of the base (1). The air pump (91) is connected to the inside of the water pipe (8) through an air pipe (92) passing through the side wall of the first clamping plate (2) and the sealing block (6). A pressure gauge (93) is provided on the air pipe (92).

2. The airtightness test tooling for water pipelines according to claim 1, wherein: A T-shaped sliding groove (11) is formed on the top surface of the base (1). A threaded rod (4) is rotatably connected in the T-shaped sliding groove (11). A motor (5) is installed on one side of the base (1). The output shaft of the motor (5) is coaxially connected to the threaded rod (4).

3. The airtightness testing tooling for water pipelines according to claim 2, characterized in that: A T-shaped slider (31) adapted to the T-shaped sliding groove (11) is integrally formed at the center of the bottom end of the second clamping plate (3). A threaded hole (32) adapted to the threaded rod (4) is formed in the middle of the T-shaped slider (31).

4. The airtightness testing tooling for water pipelines according to claim 1, characterized in that: Rod grooves (61) adapted to the dimensions of the plurality of sliding rods (711) and corresponding to them one by one are formed in the sealing block (6) at positions corresponding to the sliding rods (711). A pull rod (74) is welded and fixed at the intersection of the plurality of sliding rods (711). One end of the pull rod (74) away from the first fixing ring (71) extends out of the side wall of the first clamping plate (2) or the second clamping plate (3) where it is located and is integrally formed with a handle (741). A first spring (75) is sleeved on the outer side wall of the pull rod (74) close to the first fixing ring (71).

5. The airtightness testing tooling for water pipelines according to claim 1, characterized in that: The second fixing ring (72) is welded and fixed on the circumferential outer side wall of the sealing block (6). Fixing grooves for accommodating the rubber ring (73) to be snapped into are formed in the middle of the opposite annular surfaces of the first fixing ring (71) and the second fixing ring (72).

6. The airtightness test tool for water pipelines according to claim 4, characterized in that: A groove (742) is formed on the side wall of the rod body of the pull rod (74). A right-angled triangular fixing block (743) is hinged in the groove (742) through a hinge post (745). One of the acute-angle ends of the fixing block (743) extends out of the groove (742). A second spring (744) is provided between the bottom of the right-angled side surface of the fixing block (743) away from the end where it exposes outside the pull rod (74) and the bottom side wall of the groove (742).

7. The airtightness test tooling for a water pipeline according to claim 6, wherein: When the pull rod (74) is pulled outwards, when a corner of the exposed fixing block (743) is squeezed by the inner wall of the through hole on the side wall of the first clamping plate (2) or the second clamping plate (3), the fixing block (743) can be retracted into the groove (742), and at this time the second spring (744) is in a compressed state.

8. The airtightness testing tool for water pipelines according to claim 6, characterized in that: When the fixing block (743) is pulled out to the outside of the side wall of the first clamping plate (2) or the second clamping plate (3) and the side surface of the fixing block (743) abuts against the outer side wall of the first clamping plate (2) or the second clamping plate (3), the rubber ring (73) is squeezed and deformed to closely fit the inner side wall of the water pipe (8), and at this time the first spring (75) is compressed to the shortest state.

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