Gas pipeline detection equipment with adjustable length
Through the design of the limit locking mechanism and the automatic telescopic mechanism, the detection error and carrying inconvenience caused by manual adjustment of the gas pipeline detection equipment are solved, and the detection effect of stable handholding and convenient storage is achieved.
Patent Information
- Application Number
- CN202423051955.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-12-11
AI Technical Summary
Existing gas pipeline detection equipment requires manual adjustment of the telescopic device during use, which affects handheld positioning, easily causes detection errors, and is inconvenient to store and carry.
A gas pipeline detection device with adjustable length is designed. It adopts a limit locking mechanism and an automatic telescopic mechanism, combined with a flip screen and handle design to achieve convenient automatic telescopic and stable hand-holding, and is equipped with a filter cover and filter cotton to prevent impurities from entering.
The device can be held stably and automatically extended, which reduces detection errors, improves detection effects, is easy to carry and store, and prevents impurities from affecting detection.
Smart Images

Figure CN223375600U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas pipeline detection, in particular to a gas pipeline detection device with adjustable length. Background Art
[0002] Gas pipeline detection equipment is a special instrument used to detect underground gas pipelines. It is convenient for locating gas pipelines that have been damaged by long-term use, effectively locating the damaged position of underground gas pipelines, and facilitating later repair and replacement. However, there are still some problems with the use of existing gas pipeline detection equipment.
[0003] In the prior art, the "gas pipeline detection device" in the authorization publication (announcement) number: CN220228772U includes a detection terminal, an alarm light is installed at the outer end of the detection terminal, a collection box is fixedly connected to the lower end of the detection terminal, and a gas sensor is installed inside the collection box, the gas sensor is electrically connected to the detection terminal, a connecting thick pipe is fixedly connected to the lower end of the collection box, and the connecting thick pipe is connected to the interior of the collection box, and a collection pump is installed between the collection box and the connecting thick pipe;
[0004] During the operation of the above-mentioned device, the collection pump cooperates with the tip gas collection pipe to extract gas, so that the gas sensor is combined with the detection terminal to detect whether the gas pipeline is damaged and leaking, and through the rotation of the T-shaped threaded rod, combined with the limiting fixation of the limit rod and the limit groove, the depth adjustment of the tip gas collection pipe is realized, and the corresponding adjustment is realized according to the gas pipelines of different depths, so that the detection is more sufficient and accurate, and the detection effect is enhanced. However, when in use, the telescopic detection device needs to be adjusted manually, which is not convenient to form an automatic telescopic setting, and it is very easy to affect the hand-held positioning of the upper components. The deep telescopic pipe is directly used to adsorb gas, which is easy to cause errors in the detection effect. The use of a fixed handheld structure and an overall detection telescopic structure is not convenient to store and carry. Utility Model Content
[0005] The purpose of the present utility model is to provide a gas pipeline detection device with adjustable length, so as to solve the problem that the telescopic detection device proposed in the above background technology needs to be adjusted manually, is not convenient to form an automatic telescopic setting, and is very likely to affect the hand-held positioning of the upper components, and directly uses a deep telescopic pipe to adsorb gas, which is easy to cause errors in the detection effect, and uses a fixed handheld structure and an overall detection telescopic structure, which is inconvenient to store and carry.
[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a gas pipeline detection device with adjustable length, provided with a detection device body that is easy to carry, with a flip screen rotatably connected to the upper surface of the detection device body, and handles rotatably connected to both sides of the outer surface of the detection device body;
[0007] It includes: an oblique support, which is rotatably connected to the side of the outer surface of the handle, and the other end of the outer surface of the oblique support is rotatably connected to a moving block, and the moving block is provided with a limiting locking mechanism used for positioning and supporting the handle;
[0008] The first telescopic member is nested and connected to the lower side of the inner surface of the detection device body, and the lower side of the inner surface of the first telescopic member is rotatably connected to the first gear, and the first telescopic member is provided with an automatic telescopic mechanism for adjusting the detection depth.
[0009] Preferably, the inner surface of the moving block in the position-limiting locking mechanism is locked with a locking block, and the outer surface of the locking block is installed with a moving rod, and the outer surface of the locking block is installed with a compression spring.
[0010] With the above structure, it is easy to stably control the position of the moving block during use, and the use stability is improved by using the extrusion spring.
[0011] Preferably, the card block and the moving block form a limiting locking structure, and the moving block forms a rotating structure for moving extrusion through the diagonal support and the handle, and the card block and the moving rod form an integrated structure, while the moving rod forms a sliding elastic extrusion structure with the detection device body through the card block and the extrusion spring.
[0012] Through the above structure, it is convenient to coordinate the moving block and the card block during use, stably control the flipping of the handle, and facilitate downward movement for use, and can be stored for use when carried.
[0013] Preferably, a limiting groove is provided on the inner surface of the first telescopic member in the automatic telescopic mechanism, and the second telescopic member is nested and connected to the inner surface of the first telescopic member, and a rack is nested and installed on the inner surface of the second telescopic member, and the outer surface of the rack is meshed and connected to the first gear, and a limiting block is installed on the upper side of the outer surface of the second telescopic member, and the outer surface of the limiting block is limited and slid in the limiting groove;
[0014] A nested block is mounted on the inner side of the upper surface of the first telescopic member, and a detection tube 1 is mounted on the outer surface of the nested block, and the inner surface of the second telescopic member is rotatably connected to a threaded rod, while the outer surface of the threaded rod is threadedly connected to a third telescopic member, and the third telescopic member is provided with an opening and closing mechanism for controlling the opening and closing of its bottom.
[0015] Through the above structure, the first telescopic part can be stably connected during use, the detection equipment body and the telescopic adjustment device can be stored separately, and the assembled first telescopic part, second telescopic part and third telescopic part can be used in a continuous telescopic manner.
[0016] Preferably, the second telescopic member forms a moving structure for meshing adjustment with the first telescopic member through a rack and a first gear, and the first telescopic member forms a limiting sliding structure with the second telescopic member through a limiting groove and a limiting block, and the first telescopic member forms a limiting locking structure with the detection tube through a nested block, while the second telescopic member forms a telescopic structure for threaded adjustment with the third telescopic member through a threaded rod.
[0017] Through the above structure, the stable movement between the second telescopic part and the first telescopic part can be effectively controlled during use, and the detection tube can be controlled to form a positioning assembly and be located inside the first telescopic part to prevent extrusion damage, and the telescopic stability of the third telescopic part can be stably controlled.
[0018] Preferably, a positioning member is installed on the inner surface of the third telescopic member in the opening and closing mechanism, and the outer surface of the positioning member is engaged with the second detection tube, and the lower side of the inner surface of the third telescopic member is rotatably connected to the second gear, and the lower surface of the second gear is meshedly connected to the third gear, and a sealing member is installed on the lower surface of the third gear, and the sealing member is nested and slid on the inner surface of the third telescopic member;
[0019] The upper side of the outer surface of the detection tube 2 is nested with the detection tube 3, and the upper side of the outer surface of the detection tube 3 is nested with the detection tube 1, and the lower surface of the detection tube 2 is assembled with a filter cover, and filter cotton is nested between the detection tube 2 and the filter cover.
[0020] Through the above structure, when in use, the detection tubes 1, 2 and 3 can be effectively nested inside the telescopic device, and can be telescoped to collect the detection gas while forming protection, and the use of the filter cover and filter cotton can prevent the entry of debris.
[0021] Preferably, the detection tube 2 forms a limiting locking structure with the positioning part and the third telescopic part, and the detection tube 2 forms a continuous telescopic structure with the detection tube 1 through the detection tube 3, and the detection tube 2 forms a limiting nested structure with the filter cover and the filter cotton. At the same time, the third telescopic part forms an engaged rotating structure with the second gear and the third gear, and the third gear and the seal form an integrated structure. At the same time, the seal and the third telescopic part form a nested rotating structure, and the holes opened by the third telescopic part and the holes opened by the seal can be sealed alternately, or used for alternate ventilation detection.
[0022] The above structure facilitates stable control and detection of the telescopic stability between the ventilation pipes during use, and the staggered use between the bottom of the rotatably adjustable third telescopic member and the sealing member improves the stability in use.
[0023] Compared with the prior art, the beneficial effects of the present invention are:
[0024] 1. A limited locking mechanism is provided to facilitate the assembly of an elastically sliding card block through the detection device body, forming a limited locking mechanism for the moving block. The card block is used, and the installed moving rod is built into the inner surface of the detection device, effectively controlling the stability of the card block movement and facilitating one-handed unlocking. The stability of the handle after flipping is controlled by the locking mechanism to avoid tilting when applying force upward or downward;
[0025] 2. An automatic telescopic mechanism is provided. By using the first telescopic member assembled on the lower side of the detection device body and the first gear assembled therein, the second telescopic member is engaged and controlled and the position of the second telescopic member is adjusted by limited sliding, thereby automatically adjusting the detection depth. In conjunction with the threaded rod assembled with the second telescopic member, the position of the third telescopic member can be effectively controlled, thereby controlling the stability of the third telescopic member and improving the detection effect deep into the ground.
[0026] 3. An opening and closing mechanism is provided. When the third telescopic member continues to extend and retract toward the ground, impurities are prevented from entering the inner surface of the third telescopic member. The holes provided in the sealing member that rotates and assembles therein are staggered with the holes on the third telescopic member to prevent dust from entering. When gas absorption is required to detect gas leakage, the second gear is controlled to adjust the rotation of the third gear, and the sealing member is synchronously controlled to rotate within a limited position on the inner surface of the third telescopic member, so that the holes of the two are aligned and gas absorption is used for detection.
[0027] Furthermore, the use of the nested and assembled detection tube 1 and the positioned and engaged detection tube 3 is facilitated, and the detection tube 1 and the positioning and engaging detection tube 3 are effectively used to form synchronous telescopic expansion and contraction with the telescopically adjustable telescopic device, thereby forming a protective function for the detection ventilation pipe.
[0028] Furthermore, the use of the filter cover and filter cotton can effectively filter impurities and prevent them from entering the detection tube three during inhalation. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of the detection device of the utility model;
[0030] Figure 2 This is a schematic diagram of the semi-sectional three-dimensional structure of the detection device body of the utility model;
[0031] Figure 3 This is a schematic diagram of the three-dimensional structure of the handle of the utility model;
[0032] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the first telescopic member of the utility model;
[0033] Figure 5 This is a schematic diagram of a semi-sectional three-dimensional structure of the second telescopic member of the present invention;
[0034] Figure 6 This is a schematic diagram of a partially cutaway three-dimensional structure of a sealing member of the present invention.
[0035] In the figure: 1. Detection device body; 2. Flip screen; 3. Handle; 4. Diagonal support; 5. Moving block; 6. Block; 7. Moving rod; 8. Extrusion spring; 9. First telescopic member; 10. First gear; 11. Limiting groove; 12. Second telescopic member; 13. Rack; 14. Limiting block; 15. Nesting block; 16. Detection tube one; 17. Threaded rod; 18. Third telescopic member; 19. Positioning member; 20. Detection tube two; 21. Second gear; 22. Third gear; 23. Seal; 24. Detection tube three; 25. Filter cover; 26. Filter cotton. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0037] See also Figures 1-6 The utility model provides the following technical solutions: a gas pipeline detection device with adjustable length, provided with a detection device body 1 that is easy to carry, and a flip screen 2 is rotatably connected to the upper surface of the detection device body 1, and handles 3 are rotatably connected to both sides of the outer surface of the detection device body 1;
[0038] Example 1: Figure 1 and Figure 3 The technical solution shown in the figure, the utility model provides the following technical solution: a gas pipeline detection device with adjustable length, disclosed:
[0039] It includes: a diagonal support 4, which is rotatably connected to the side of the outer surface of the handle 3, and the other end of the outer surface of the diagonal support 4 is rotatably connected to a moving block 5, and the moving block 5 is provided with a limiting locking mechanism used for positioning and supporting the handle 3;
[0040] The inner surface of the moving block 5 in the position limiting locking mechanism is locked and connected with the clamping block 6, and the outer surface of the clamping block 6 is installed with a moving rod 7 and an extrusion spring 8.
[0041] The clamping block 6 and the moving block 5 form a limiting clamping structure, and the moving block 5 forms a rotating structure of moving extrusion with the handle 3 through the diagonal support 4, and the clamping block 6 and the moving rod 7 form an integrated structure. At the same time, the moving rod 7 forms a sliding elastic extrusion structure with the detection device body 1 through the clamping block 6 and the extrusion spring 8.
[0042] When in use, the detection device body 1 is taken out, and the flip screen 2 on the detection device body 1 is controlled to rotate to a suitable angle, and the handles 3 on both sides are controlled to rotate, and the handles 3 and the detection device body 1 are rotated to a vertical state for use, and the control handle 3 drives the moving block 5 on the diagonal support 4 to control it to slide within the inner surface of the detection device body 1, thereby controlling the moving block 5 to squeeze the card block 6, prompting the card block 6 to cooperate with the elastic structure of the squeezing spring 8, effectively forming an elastic engagement and positioning for the moving block 5, and when the handle 3 needs to be stored later, pinch the symmetrically arranged moving rod 7 with two fingers to slide on the inner surface of the detection device body 1, thereby controlling the moving rod 7 to drive the card block 6 to squeeze the squeezing spring 8, and disengage the control card block 6 from the engagement with the moving block 5, and the moving block 5 will cooperate with the reset spring connected at the bottom to drive the handle 3 to automatically reset and store;
[0043] Example 2: Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The technical solution shown in the embodiment 1 further discloses that the first telescopic member 9 controls the telescopic adjustment of the second telescopic member 12 and the third telescopic member 18, and the specific contents are as follows:
[0044] The first telescopic member 9 is nested and connected to the lower side of the inner surface of the detection device body 1, and the lower side of the inner surface of the first telescopic member 9 is rotatably connected to the first gear 10, and the first telescopic member 9 is provided with an automatic telescopic mechanism for adjusting the detection depth.
[0045] A limiting groove 11 is provided on the inner surface of the first telescopic member 9 in the automatic telescopic mechanism, and a second telescopic member 12 is nested and connected to the inner surface of the first telescopic member 9, and a rack 13 is nested and installed on the inner surface of the second telescopic member 12. At the same time, the outer surface of the rack 13 is meshed and connected to the first gear 10, and a limiting block 14 is installed on the upper side of the outer surface of the second telescopic member 12, and the outer surface of the limiting block 14 is limited and slid in the limiting groove 11;
[0046] A nesting block 15 is mounted on the inner side of the upper surface of the first telescopic member 9, and a detection tube 16 is mounted on the outer surface of the nesting block 15. A threaded rod 17 is rotatably connected to the inner surface of the second telescopic member 12, and a third telescopic member 18 is threadedly connected to the outer surface of the threaded rod 17. The third telescopic member 18 is provided with an opening and closing mechanism for controlling the opening and closing of its bottom.
[0047] The second telescopic member 12 forms a moving structure for meshing adjustment with the first telescopic member 9 through the rack 13 and the first gear 10, and the first telescopic member 9 forms a limiting sliding structure with the second telescopic member 12 through the limiting groove 11 and the limiting block 14, and the first telescopic member 9 forms a limiting locking structure with the detection tube 16 through the nesting block 15, and at the same time, the second telescopic member 12 forms a telescopic structure for threaded adjustment with the third telescopic member 18 through the threaded rod 17.
[0048] When in use, after debugging the detection device body 1 and installing the first telescopic part 9, the motor assembled inside the first telescopic part 9 will be controlled to control the rotating shaft to drive the first gear 10 to rotate according to the depth of movement required, and the second telescopic part 12 with the rack 13 is adjusted by the first gear 10 to move downward, thereby controlling the limit block 14 assembled with the second telescopic part 12 to slide in the limit groove 11 opened in the first telescopic part 9, effectively controlling the stability of the telescopic adjustment of the second telescopic part 12, and when adjusting the telescopic adjustment of the second telescopic part 12, the detection tube 16 assembled by the first telescopic part 9 through the nesting block 15 will be used for positioning to prevent downward movement, and cooperate with other pipes assembled on its lower side to continue to move downward;
[0049] Example 3: Figure 1 、 Figure 2 、 Figure 5 and Figure 6 The technical solution shown in the embodiment 2 further discloses the use of the third telescopic member 18 to control the engagement detection of the bottom thereof, and the specific contents are as follows:
[0050] In the opening and closing mechanism, a positioning member 19 is installed on the inner surface of the third telescopic member 18, and a second detection tube 20 is mounted on the outer surface of the positioning member 19. A second gear 21 is rotatably connected to the lower side of the inner surface of the third telescopic member 18. At the same time, a third gear 22 is meshed and connected to the lower surface of the second gear 21. A sealing member 23 is installed on the lower surface of the third gear 22, and the sealing member 23 is nested and slidably mounted on the inner surface of the third telescopic member 18.
[0051] The detection tube 2 20 is nested and connected to the upper side of the outer surface of the detection tube 3 24, and the detection tube 1 16 is nested and connected to the upper side of the outer surface of the detection tube 3 24, and the lower surface of the detection tube 2 20 is assembled with a filter cover 25, and the filter cotton 26 is nested and connected between the detection tube 2 20 and the filter cover 25.
[0052] The detection tube 2 20 forms a limiting locking structure with the third telescopic part 18 through the positioning part 19, and the detection tube 2 20 forms a continuous telescopic structure with the detection tube 1 16 through the detection tube 3 24, and the detection tube 2 20 forms a limiting nested structure with the filter cover 25 and the filter cotton 26. At the same time, the third telescopic part 18 forms an engaged rotating structure with the second gear 21 and the third gear 22, and the third gear 22 and the seal 23 form an integrated structure. At the same time, the seal 23 and the third telescopic part 18 form a nested rotating structure, and the holes opened in the third telescopic part 18 and the holes opened in the seal 23 can be sealed alternately, or used for alternate ventilation detection.
[0053] When the third telescopic member 18 is controlled to move continuously downward, the holes opened on its lower side will be staggered with the holes between the sealing member 23 assembled with it to form a sealing treatment to prevent impurities from entering the third telescopic member 18, and when the third telescopic member 18 is continuously telescopically adjusted, the detection tube 2 20 assembled by the positioning member 19 will drive the detection tube 3 24 and the detection tube 1 16 to telescope and adjust, and after the third telescopic member 18 is moved to the appropriate position, the motor inside it will be controlled to drive the second gear 21 and the third gear 22 to engage and rotate, and The control seal 23 is limited to rotate on the inner surface of the third telescopic part 18, and the holes on the third telescopic part 18 are aligned with the holes on the seal 23, and the gas is sucked in through the detection tube 2 20, the detection tube 3 24 and the detection tube 1 16 to flow into the detection equipment body 1 to form a detection, and the filter cotton 26 nested between the filter cover 25 assembled with the detection tube 20 is used to filter the impurities to avoid blockage in the detection pipeline, improve the convenience of use of the gas pipeline detection equipment, and control its telescopic stability and protective use.
[0054] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0055] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A gas pipeline detection device with adjustable length, comprising a detection device body (1) that is easy to carry, a flip screen (2) being rotatably connected to the upper surface of the detection device body (1), and handles (3) being rotatably connected to both sides of the outer surface of the detection device body (1); It is characterized by: include: The diagonal support (4) is rotatably connected to the side of the outer surface of the handle (3), and the other end of the outer surface of the diagonal support (4) is rotatably connected to a moving block (5), and the moving block (5) is provided with a position-limiting locking mechanism used for positioning and supporting the handle (3); The first telescopic member (9) is nested and connected to the lower side of the inner surface of the detection device body (1), and the lower side of the inner surface of the first telescopic member (9) is rotatably connected to the first gear (10), and the first telescopic member (9) is provided with an automatic telescopic mechanism for facilitating the adjustment of the detection depth.
2. The gas pipeline detection device with adjustable length according to claim 1, characterized in that: The inner surface of the moving block (5) in the position-limiting locking mechanism is locked and connected with a locking block (6), and the outer surface of the locking block (6) is installed with a moving rod (7), and the outer surface of the locking block (6) is installed with a pressing spring (8).
3. The gas pipeline detection device with adjustable length according to claim 2, characterized in that: The clamping block (6) and the moving block (5) form a position-limiting clamping structure, and the moving block (5) forms a moving extrusion rotating structure through the diagonal support (4) and the handle (3), and the clamping block (6) and the moving rod (7) form an integrated structure, while the moving rod (7) forms a sliding elastic extrusion structure with the detection device body (1) through the clamping block (6) and the extrusion spring (8).
4. The gas pipeline detection device with adjustable length according to claim 1, characterized in that: In the automatic telescopic mechanism, a limiting groove (11) is provided on the inner surface of the first telescopic member (9), and the inner surface of the first telescopic member (9) is nested and connected with the second telescopic member (12), and the inner surface of the second telescopic member (12) is nested and installed with a rack (13), and the outer surface of the rack (13) is meshed and connected with the first gear (10), and a limiting block (14) is installed on the upper side of the outer surface of the second telescopic member (12), and the outer surface of the limiting block (14) is limited and slidable in the limiting groove (11); A nesting block (15) is mounted on the inner side of the upper surface of the first telescopic member (9), and a detection tube (16) is mounted on the outer surface of the nesting block (15). The inner surface of the second telescopic member (12) is rotatably connected to a threaded rod (17), and the outer surface of the threaded rod (17) is threadedly connected to a third telescopic member (18), and the third telescopic member (18) is provided with an opening and closing mechanism for controlling the opening and closing of its bottom.
5. The gas pipeline detection device with adjustable length according to claim 4, characterized in that: The second telescopic member (12) forms a meshing and adjusting movable structure with the first telescopic member (9) through the rack (13) and the first gear (10), and the first telescopic member (9) forms a limiting sliding structure with the second telescopic member (12) through the limiting groove (11) and the limiting block (14), and the first telescopic member (9) forms a limiting engaging structure with the detection tube (16) through the nesting block (15), and the second telescopic member (12) forms a threaded adjustment telescopic structure with the third telescopic member (18) through the threaded rod (17).
6. The gas pipeline detection device with adjustable length according to claim 4, characterized in that: The inner surface of the third telescopic member (18) in the opening and closing mechanism is installed with a positioning member (19), and the outer surface of the positioning member (19) is engaged with the second detection tube (20), and the lower side of the inner surface of the third telescopic member (18) is rotatably connected to the second gear (21), and the lower surface of the second gear (21) is meshedly connected to the third gear (22), and the lower surface of the third gear (22) is installed with a sealing member (23), and the sealing member (23) is nested and slid on the inner surface of the third telescopic member (18); The upper side of the outer surface of the detection tube 2 (20) is nested with the detection tube 3 (24), and the upper side of the outer surface of the detection tube 3 (24) is nested with the detection tube 1 (16), and the lower surface of the detection tube 2 (20) is assembled with a filter cover (25), and filter cotton (26) is nested between the detection tube 2 (20) and the filter cover (25).
7. The gas pipeline detection device with adjustable length according to claim 6, characterized in that: The second detection tube (20) forms a position-limiting locking structure with the third telescopic member (18) through the positioning member (19), and the second detection tube (20) forms a continuous telescopic structure with the first detection tube (16) through the third detection tube (24), and the second detection tube (20) forms a position-limiting nested structure with the filter cover (25) and the filter cotton (26), while the third telescopic member (18) forms a meshing rotation structure with the third gear (22) through the second gear (21), and the third gear (22) and the sealing member (23) form an integrated structure, while the sealing member (23) and the third telescopic member (18) form a nested rotation structure, and the holes opened by the third telescopic member (18) and the holes opened by the sealing member (23) can be staggered and sealed, or staggered for ventilation detection.
Citation Information
Patent Citations
Gas pipeline detection equipment
CN220228772U