Air tightness detection device capable of detecting pipelines with various calibers

Abstract

The utility model relates to the technical field of air tightness detection, and discloses an air tightness detection device capable of detecting pipelines with various calibers, which comprises a detector main body and an air outlet pipe, one end of the air outlet pipe far away from the detector main body is connected with a support assembly, and the inside of the support assembly is connected with a self-adaptive assembly. The end, away from the air outlet pipe, of the supporting assembly is connected with a squeezing assembly, the exterior of the squeezing assembly is connected with an adjusting assembly, the interior of the adjusting assembly is connected with a clamping assembly, and the other end of the clamping assembly is located in the squeezing assembly. According to the air tightness detection device capable of detecting pipelines with various calibers, through the synergistic effect of the self-adaptive assembly and the clamping assembly, the air tightness detection device can adapt to fire fighting pipelines with different calibers without replacing adaptive parts. The sealing gasket on the outer wall of the conical head is tightly attached to the inner wall of the pipeline, self-adaptive sealing is achieved in cooperation with threaded adjustment of the fine adjustment column, and the problem that connectors of traditional equipment need to be replaced frequently is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of airtightness testing technology, specifically an airtightness testing device that can test pipes of various diameters. Background Technology

[0002] Fire protection piping is a type of piping specifically designed for use in building fire protection systems. Its primary function is to provide a reliable path for the delivery of extinguishing media (such as water, foam, and dry powder) during a fire, ensuring rapid and effective fire control, protecting lives, and minimizing property damage. To ensure the reliable operation of fire protection piping during a fire and to guarantee the effectiveness of the fire suppression system, airtightness testing is often required.

[0003] Patent CN221077974U discloses an embedded airtightness testing device, comprising: a housing; a display screen disposed on one side surface of the housing; a microcontroller disposed within the housing and connected to the display screen; a multi-mode detection component disposed within the housing and connected to the microcontroller, with each mode detection component connected to a multi-mode port on the housing via connecting pipes; a control valve assembly disposed within the housing and connected to the multi-mode detection component, a pressure reducing valve, and an oil-water separator; and an air intake end with an interface disposed on the housing, connected to the input end of the oil-water separator via an air intake pipe disposed within the housing. This invention solves the technical problem of the difficulty in airtightness testing of engines and the low accuracy of test results in existing technologies.

[0004] However, the aforementioned airtightness tester still has the following problems in actual use:

[0005] When fire-fighting pipelines have varying diameters, existing airtightness testing equipment is only compatible with pipelines of specific sizes. This means that when testing fire-fighting pipelines of different diameters, it is necessary to replace the testing interface or pipeline components with the appropriate specifications. This process is not only cumbersome and complex, but also easily causes identification difficulties for testing personnel when the diameters of the pipelines being tested are similar, resulting in additional time spent adjusting and confirming the correct adapter. This inconvenience significantly reduces testing efficiency and may affect the overall project schedule. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an airtightness testing device that can test pipes of various diameters, enabling the testing of fire-fighting pipes of more different diameters.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an airtightness testing device for testing pipes of various diameters, comprising a testing instrument body and an outlet pipe installed at the rear end of the testing instrument body, a support component connected to the end of the outlet pipe away from the testing instrument body, an adaptive component connected inside the support component, and the adaptive component communicating with the interior of the outlet pipe, a clamping component connected to the end of the support component away from the outlet pipe, an adjustment component connected to the outside of the clamping component, a clamping component connected inside the adjustment component, and the other end of the clamping component located inside the clamping component.

[0008] Furthermore, the support assembly includes a rigid tube, a fixing ring, and a cross bracket. One end of the rigid tube is fixedly connected to the end of the exhaust pipe away from the main body of the detector. The outer wall of the other end of the rigid tube is fixedly connected to the middle of the cross bracket. The other four ends of the cross bracket are fixedly connected to the inner wall of one end of the fixing ring. The inner wall of the other end of the fixing ring is connected to the adaptive component. The end of the fixing ring away from the cross bracket is connected to the clamping component. The exhaust pipe, the rigid tube, and the adaptive component are internally connected.

[0009] Furthermore, the adaptive component includes a fine-tuning column and a conical head. The outer wall of one end of the fine-tuning column is threadedly connected to the inner wall of the fixing ring, and the other end of the fine-tuning column extends through to the outside of the fixing ring and is fixedly connected to one end of the conical head. A sealing gasket is fixedly connected to the outer wall of the conical head, and a rigid tube communicates with the inside of the fine-tuning column.

[0010] Furthermore, the outer wall of the fine-tuning column near the conical head has several insertion holes.

[0011] Furthermore, the clamping assembly includes a collar and several extension rods. One end of each extension rod is fixedly connected to the end of the fixed ring away from the cross bracket, and the other end of each extension rod is fixedly connected to one end of the collar. The collar is connected to the adjusting assembly, and four sliding openings are provided through the surface of the collar. The clamping assembly is located in the four sliding openings.

[0012] Furthermore, the adjustment assembly includes two support blocks and four fixing plates. One end of each of the two support blocks is fixedly connected to the upper and lower sides of the collar, respectively. The four fixing plates are arranged in pairs, with the two sets of fixing plates located on both sides of the two support blocks, and both sets of fixing plates are fixedly connected to the collar. The clamping assembly is connected to both the two support blocks and the four fixing plates.

[0013] Furthermore, the clamping assembly includes a bidirectional lead screw, a slide bar, four movable plates, and two arc-shaped clamping plates. The bidirectional lead screw is rotatably connected to one of the support blocks and two of the fixed plates. The slide bar is fixedly connected to another support block and the remaining two fixed plates. One end of each of the two movable plates is sleeved and threadedly connected to the outer wall of the bidirectional lead screw. One end of each of the other two movable plates is sleeved and slidably connected to the outer wall of the slide bar. The outer walls of the four movable plates are slidably connected to two sets of sliding openings. The two movable plates in the same set of sliding openings are fixedly connected to the two ends of the arc-shaped clamping plates.

[0014] Furthermore, anti-slip pads are fixedly connected to the adjacent sides of the two curved clamps.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This airtightness testing device, capable of inspecting pipes of various diameters, adapts to different diameter fire-fighting pipes without the need for replacement of adapter components through the synergistic action of adaptive and clamping components. The sealing gasket on the outer wall of the conical head fits tightly against the inner wall of the pipe, and with the threaded adjustment of the fine-tuning column, adaptive sealing is achieved, effectively solving the problem of frequent interface replacement required by traditional equipment.

[0017] This airtightness testing device, capable of testing pipes of various diameters, uses a linkage mechanism between the clamping component's collar and the adjusting component. By rotating the bidirectional screw, the arc-shaped clamping plate can be tightened simultaneously. Combined with the anti-slip pad to enhance friction, it enables rapid positioning and stable clamping of the pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall appearance of the present utility model;

[0019] Figure 2 This is a support component of the present invention. A detailed connection diagram of components such as the adaptive component and the clamping component is shown.

[0020] Figure 3 This is an exploded view of the clamping assembly, adjusting assembly, and holding assembly of this utility model;

[0021] Figure 4 This is an exploded view of the support component and the adaptive component of this utility model;

[0022] Figure 5 This utility model Figure 4 A schematic diagram of the various components from another perspective.

[0023] In the diagram: 1. Main body of the detector; 2. Rigid tube; 3. Fixing ring; 4. Extension rod; 5. Fine adjustment column; 6. Conical head; 7. Collar; 8. Fixing plate; 9. Support block; 10. Moving plate; 11. Two-way lead screw; 12. Slide rod; 13. Arc-shaped clamp; 14. Anti-slip pad; 15. Cross bracket; 16. Air outlet pipe; 501. Insertion hole; 701. Slide opening. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figures 1-5 An airtightness testing device for testing pipes of various diameters includes a testing instrument body 1 and an air outlet pipe 16 installed at the rear end of the testing instrument body 1. A support component is connected to one end of the air outlet pipe 16 away from the testing instrument body 1. An adaptive component is connected inside the support component and communicates with the interior of the air outlet pipe 16. A clamping component is connected to one end of the support component away from the air outlet pipe 16. An adjustment component is connected to the outside of the clamping component. A clamping component is connected inside the adjustment component. The other end of the clamping component is located inside the clamping component.

[0026] It should be noted that the main body 1 of the detector and the air outlet pipe 16 are existing technologies in existing airtightness detectors, and will not be described in detail here.

[0027] As a preferred embodiment of this utility model, the support assembly includes a rigid tube 2, a fixing ring 3, and a cross bracket 15. One end of the rigid tube 2 is fixedly connected to the end of the air outlet tube 16 away from the main body 1 of the detector. The outer wall of the other end of the rigid tube 2 is fixedly connected to the middle of the cross bracket 15. The other four ends of the cross bracket 15 are all fixedly connected to the inner wall of one end of the fixing ring 3. The inner wall of the other end of the fixing ring 3 is connected to the adaptive component. The end of the fixing ring 3 away from the cross bracket 15 is connected to the squeezing component. The air outlet tube 16, the rigid tube 2, and the adaptive component are internally connected.

[0028] More specifically, by setting up support components, it is possible to connect the air outlet pipe 16 and provide stable support for subsequent components such as the adaptive component, the clamping component, the adjusting component, and the clamping component.

[0029] As a preferred embodiment of this utility model, the adaptive component includes a fine-tuning column 5 and a conical head 6. The outer wall of one end of the fine-tuning column 5 is threadedly connected to the inner wall of the fixing ring 3, and the other end of the fine-tuning column 5 extends through to the outside of the fixing ring 3 and is fixedly connected to one end of the conical head 6. A sealing gasket is fixedly connected to the outer wall of the conical head 6, and the rigid tube 2 communicates with the inside of the fine-tuning column 5.

[0030] More specifically, by setting an adaptive component, after the clamping component, adjusting component and clamping component clamp the fire pipe to be tested, the adaptive component can make fine adjustments to block the opening of the fire pipe, and after blocking, the airtightness test is performed by the main body 1 of the detector.

[0031] As a preferred embodiment of this utility model, the outer wall of the fine-tuning column 5 near the conical head 6 is provided with several insertion holes 501.

[0032] More specifically, by setting the socket 501, it is easier to move the fine adjustment column 5.

[0033] As a preferred embodiment of the present invention, the clamping assembly includes a collar 7 and several extension rods 4. One end of each extension rod 4 is fixedly connected to the end of the fixed ring 3 away from the cross bracket 15, and the other end of each extension rod 4 is fixedly connected to one end of the collar 7. The collar 7 is connected to the adjusting assembly, and four sliding openings 701 are provided through the surface of the collar 7. The clamping assembly is located in the four sliding openings 701.

[0034] More specifically, by setting up the clamping component, it can first provide support for the adjustment component and the clamping component, and secondly, when inspecting the fire-fighting pipeline, it can be pre-aligned by the collar 7 so that the fire-fighting pipeline can be located exactly inside the clamping component.

[0035] As a preferred embodiment of the present invention, the adjustment assembly includes two support blocks 9 and four fixing plates 8. One end of the two support blocks 9 is fixedly connected to the upper and lower sides of the collar 7 respectively. The four fixing plates 8 are in pairs, and the two sets of fixing plates 8 are located on both sides of the two support blocks 9 respectively. Both sets of fixing plates 8 are fixedly connected to the collar 7. The clamping assembly is connected to both the two support blocks 9 and the four fixing plates 8.

[0036] More specifically, by setting up the adjustment component, support can be provided to the clamping component when fire pipelines need to be inspected, ensuring that the clamping component can stably clamp the fire pipelines to be inspected.

[0037] As a preferred embodiment of this utility model, the clamping assembly includes a bidirectional lead screw 11, a slide rod 12, four movable plates 10, and two arc-shaped clamping plates 13. The bidirectional lead screw 11 is rotatably connected to one of the support blocks 9 and two of the fixed plates 8. The slide rod 12 is fixedly connected to another support block 9 and the remaining two fixed plates 8. One end of each of the two movable plates 10 is sleeved and threadedly connected to the outer wall of the bidirectional lead screw 11. One end of each of the other two movable plates 10 is sleeved and slidably connected to the outer wall of the slide rod 12. The outer walls of the four movable plates 10 are slidably connected to two sets of sliding openings 701. The two movable plates 10 in the same set of sliding openings 701 are fixedly connected to both ends of the arc-shaped clamping plates 13.

[0038] More specifically, by setting up clamping components, the fire-fighting pipe under test can be clamped from the outside of the adaptive components, so that the fire-fighting pipe remains stable; and through the cooperation of the bidirectional screw 11 and the slide bar 12, it can also adapt to the clamping and testing of fire-fighting pipes of different thicknesses.

[0039] Additionally, it should be noted that in practical applications, the slide bar 12 can also be set as a two-way lead screw 11. When conditions permit, two two-way lead screws 11 can be rotated simultaneously with the help of external tools. This ensures that the two arc-shaped clamps 13 are subjected to more uniform force and that the movement of the two arc-shaped clamps 13 is more stable.

[0040] As a preferred embodiment of this utility model, anti-slip pads 14 are fixedly connected to the adjacent sides of the two arc-shaped clamps 13.

[0041] More specifically, by setting the anti-slip pad 14, the clamping friction of the arc-shaped clamping plate 13 can be increased.

[0042] like Figures 1 to 5 As shown, the airtightness testing device of this utility model, which can test pipes of various diameters, can be used according to the following steps:

[0043] First, align the opening of the collar 7 with the fire-fighting pipe to be tested and insert it, so that the fire-fighting pipe is located between the two arc-shaped clamps 13. Then, continue to insert the collar 7 until the inner diameter of the end of the fire-fighting pipe abuts against the conical head 6. At this time, use an external tool (such as an electric wrench) to rotate the double-acting screw 11. After the double-acting screw 11 rotates, it can cooperate with the slide rod 12 to move the two arc-shaped clamps 13 connected in the middle along the two sets of slide ports 701 towards the middle. During the movement of the arc-shaped clamps 13, the fire-fighting pipe will be clamped from the outside. At this time, stop rotating the double-acting screw 11.

[0044] Because the fire pipe was previously only pressed against the conical head 6, after the fire pipe is clamped by the two arc-shaped clamps 13, it is only necessary to insert an external tool (such as a metal rod) into the socket 501, and then rotate the fine adjustment column 5 to one side. When the fine adjustment column 5 rotates, it will rotate the conical head 6 together. At the same time, the fine adjustment column 5 will also squeeze into the fire pipe through the thread between it and the fixing ring 3 (because the fire pipe has been clamped by the two arc-shaped clamps 13, and the distance between the extension rod 4 and the collar 7 and the fixing ring 3 is the same, so it will not cause the fire pipe to shift).

[0045] As the conical head 6 is gradually squeezed into the fire pipe, the rubber pad on the outside of the conical head 6 can gradually be squeezed tightly against the inner wall of the end of the fire pipe, thus ensuring a stable connection and sealing the fire pipe.

[0046] Then, the detector body 1 is activated, and gas is supplied into the rigid pipe 2 through the gas outlet pipe 16. The gas inside the rigid pipe 2 then enters the fire-fighting pipeline through the fine-tuning column 5 and the conical head 6. After that, you only need to pay attention to the data on the display screen of the detector body 1 to know and judge the air tightness test result of the fire-fighting pipeline, which is convenient and quick.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An airtightness testing device for testing pipes of various diameters, comprising a testing instrument body (1) and an outlet pipe (16) installed at the rear end of the testing instrument body (1), characterized in that: The end of the air outlet pipe (16) away from the main body (1) of the detector is connected to a support component. The support component is internally connected to an adaptive component, and the adaptive component is in communication with the inside of the air outlet pipe (16). The end of the support component away from the air outlet pipe (16) is connected to a squeezing component. The outside of the squeezing component is connected to an adjustment component. The inside of the adjustment component is connected to a clamping component. The other end of the clamping component is located inside the squeezing component.

2. The airtightness testing device for testing pipelines of various diameters according to claim 1, characterized in that: The support assembly includes a rigid tube (2), a fixing ring (3), and a cross bracket (15). One end of the rigid tube (2) is fixedly connected to the end of the air outlet tube (16) away from the main body (1) of the detector. The outer wall of the other end of the rigid tube (2) is fixedly connected to the middle of the cross bracket (15). The other four ends of the cross bracket (15) are fixedly connected to the inner wall of one end of the fixing ring (3). The inner wall of the other end of the fixing ring (3) is connected to the adaptive component. The end of the fixing ring (3) away from the cross bracket (15) is connected to the squeezing component. The air outlet tube (16), the rigid tube (2), and the adaptive component are internally connected.

3. The airtightness testing device for testing pipelines of various diameters according to claim 2, characterized in that: The adaptive component includes a fine-tuning column (5) and a conical head (6). The outer wall of one end of the fine-tuning column (5) is threaded to the inner wall of the fixing ring (3). The other end of the fine-tuning column (5) extends through to the outside of the fixing ring (3) and is fixedly connected to one end of the conical head (6). A sealing gasket is fixedly connected to the outer wall of the conical head (6). The rigid tube (2) communicates with the inside of the fine-tuning column (5).

4. The airtightness testing device for testing pipelines of various diameters according to claim 3, characterized in that: The fine-tuning column (5) has several insertion holes (501) on its outer wall near the end of the conical head (6).

5. The airtightness testing device for testing pipelines of various diameters according to claim 4, characterized in that: The clamping assembly includes a collar (7) and several extension rods (4). One end of each extension rod (4) is fixedly connected to the end of the fixed ring (3) away from the cross bracket (15). The other end of each extension rod (4) is fixedly connected to one end of the collar (7). The collar (7) is connected to the adjusting assembly, and four sliding openings (701) are provided through the surface of the collar (7). The clamping assembly is located in the four sliding openings (701).

6. The airtightness testing device for testing pipelines of various diameters according to claim 5, characterized in that: The adjustment assembly includes two support blocks (9) and four fixing plates (8). One end of the two support blocks (9) is fixedly connected to the upper and lower sides of the collar (7) respectively. The four fixing plates (8) are in pairs. The two sets of fixing plates (8) are located on both sides of the two support blocks (9) respectively, and both sets of fixing plates (8) are fixedly connected to the collar (7). The clamping assembly is connected to both the two support blocks (9) and the four fixing plates (8).

7. The airtightness testing device for testing pipelines of various diameters according to claim 6, characterized in that: The clamping assembly includes a bidirectional lead screw (11), a slide bar (12), four movable plates (10) and two arc-shaped clamping plates (13). The bidirectional lead screw (11) is rotatably connected to one of the support blocks (9) and two of the fixed plates (8). The slide bar (12) is fixedly connected to another support block (9) and the remaining two fixed plates (8). One end of each of the two movable plates (10) is sleeved and threadedly connected to the outer wall of the bidirectional lead screw (11). One end of the other two movable plates (10) is sleeved and slidably connected to the outer wall of the slide bar (12). The outer walls of the four movable plates (10) are slidably connected to two sets of sliding openings (701). The two movable plates (10) in the same set of sliding openings (701) are fixedly connected to both ends of the arc-shaped clamping plates (13).

8. The airtightness testing device for testing pipelines of various diameters according to claim 7, characterized in that: Anti-slip pads (14) are fixedly connected to the adjacent sides of the two arc-shaped clamps (13).

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