One-piece exhaust pipe leak detection tool with good stability
By introducing a limiting groove and auxiliary support structure into the integrated exhaust pipe leak testing fixture, the problem of poor stability of the main body of the exhaust pipe is solved, and more efficient testing and convenient replacement of sealing adaptability are achieved.
Patent Information
- Application Number
- CN202520167790.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-01-24
AI Technical Summary
The existing integrated exhaust pipe leak detection fixture has poor stability of the main body of the exhaust pipe during the detection process, and it is prone to deflection, which affects the detection efficiency and results.
A leak testing fixture was designed, comprising an exhaust pipe body, a base, and a stable auxiliary support structure. The stability of the exhaust pipe is enhanced by setting a limiting groove and an auxiliary support structure on the top surface of the base, and the sealing performance and adjustability are improved by modifying the plug and clamping structure.
It improves the stability of the exhaust pipe body, avoids deviation, ensures the accuracy and efficiency of test results, and facilitates the replacement of rubber blocks and clamping structures to adapt to exhaust pipes of different diameters.
Smart Images
Figure CN223749479U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of equipment for automobile parts machining, especially to a leak detection tool for a connected exhaust pipe with good stability. BACKGROUND
[0002] When detecting the leakage of the weld of the connected exhaust pipe, the connected exhaust pipe is generally detected by a leak detection tool. The existing leak detection tool basically meets the daily use requirements, but still has some deficiencies that need to be improved.
[0003] When producing the connected exhaust pipe, the pipes are generally aligned with each other and fixed by welding, so that the connected exhaust pipe is obtained. During the welding process, the operator may improperly operate and cause incomplete welding, resulting in a gap between the two groups of pipes. In order to make the surface of the connected exhaust pipe neat, the welded part is generally polished. After excessive polishing, a small crack may be generated at the welding scar. Since the crack is small, the crack position may not be found by the naked eye during quality inspection. When testing the air tightness of the connected exhaust pipe, the crack may not be well judged. Therefore, the applicant proposed a leak detection tool for a connected exhaust pipe in 2022. However, during the use of the above tool, the stability of the exhaust pipe body is poor when the push rod is pushed, and problems such as deflection may occur, which is not conducive to further detection and requires the pipe to be straightened before detection, which affects the detection efficiency and results. SUMMARY
[0004] The utility model aims to provide a leak detection tool for a connected exhaust pipe with good stability, which solves the problem of poor stability of the exhaust pipe body when the exhaust pipe body is detected by the existing leak detection tool for a connected exhaust pipe.
[0005] To solve the above technical problems, the utility model adopts the following technical solutions:
[0006] A leak detection tool for a connected exhaust pipe with good stability comprises an exhaust pipe body, a base, and an auxiliary support structure with good stability. The top surface of the base is provided with a pad in the middle. The top surface of the pad is provided with a limiting groove. The two ends of the exhaust pipe body are provided with plugs. The outer end of the plug at one end is provided with a push rod. The outer end of the plug at the other end is connected with an exhaust pipe plug through a connecting rod. A winding belt is provided on the welding scar part of the middle part of the exhaust pipe body. During leak detection, the welding scar part of the middle part of the exhaust pipe body is located in the limiting groove. The auxiliary support structure with good stability is arranged on both sides of the pad. The auxiliary support structure with good stability comprises, from bottom to top, a positioning block, a support, a supporting plate connecting block, a supporting plate, and an exhaust pipe clamping structure. The supporting plate connecting block is rotationally connected with the top surface of the support.
[0007] The exhaust pipe clamping structure is arranged on the top surface of the original supporting plate structure, so that the stability of the exhaust pipe body is good when the exhaust pipe body is placed on the top surface of the base, and the exhaust pipe body will not deviate during the pushing of the push rod, which is more conducive to the accuracy and efficiency of the test results.
[0008] As a further optimization of the utility model, the plug head comprises a push plate, a rubber block, a fixing shaft, a baffle, a rotating block and a rotating groove, the push rod and the connecting rod are connected with the push plate, the middle part of the other end of the push plate is connected with the fixing shaft, the rubber block is arranged around the fixing shaft, the other end of the fixing shaft is provided with the rotating groove, the rotating block is embedded in the rotating groove, the baffle is connected with the rotating block, and the outer end surface of the baffle is mutually attached to the inner end surface of the rubber block.
[0009] When the rubber block needs to be replaced, the baffle is first twisted, the baffle drives the rotating block to rotate in the rotating groove, the rotating block is moved out of the rotating groove, the baffle is moved out of the end part of the fixing shaft, the baffle no longer limits the rubber block, the rubber block is pulled out of the surface of the fixing shaft, and thus the rubber block is conveniently replaced.
[0010] As a further optimization of the utility model, the outer wall of the exhaust pipe plug is provided with a hinge connecting buckle, the exhaust pipe plug is detachably connected with the hinge through the hinge connecting buckle, one end of the hinge is provided with a climbing buckle for connecting with the hinge connecting buckle, and the other end of the hinge is hingedly connected with the base.
[0011] In the previous scheme, a connecting rope is used, and in this scheme, a hinge is used, compared with the connecting rope, the hinge is less likely to be damaged, and through the cooperation of the hinge connecting buckle and the climbing buckle, the exhaust pipe plug is more convenient to replace, so as to be suitable for exhaust pipe bodies of different diameters.
[0012] As a further optimization of the utility model, the top surface of the base is further provided with an auxiliary supporting structure positioning groove, the auxiliary supporting structure positioning groove is located on the two sides of the pad, the bottom surface of the auxiliary supporting structure positioning groove is uniformly provided with an in-groove positioning tooth row, the tooth setting direction of the in-groove positioning tooth row is perpendicular to the horizontal projection direction of the exhaust pipe body, and the bottom of the positioning block is provided with a positioning block positioning tooth row matched with the in-groove positioning tooth row.
[0013] The auxiliary supporting structure with good stability is conveniently positioned.
[0014] As a further preferred embodiment of the present application, the exhaust pipe clamping structure comprises a fixed plate, a clamping plate and a clamping threaded rod, the fixed plate is fixed on both sides of the top surface of the supporting plate, the clamping threaded rod is threaded connected with the fixed plate at the middle part of the fixed plate, the clamping plate is arranged on the inner side of the fixed plate, and the inner end of the clamping threaded rod is rotationally connected with the clamping plate.
[0015] The clamping threaded rod pushes the clamping plate inward, the clamping plate is in contact with the outer wall of the exhaust pipe body to realize clamping and fixing work, the clamping threaded rod pulls the clamping plate outward, and the clamping plate is away from the exhaust pipe body to realize the work of loosening the exhaust pipe body, and the structure is simple.
[0016] As a further preferred embodiment of the present application, the cross section of the clamping plate is arc-shaped, and the inner end face of the clamping plate is provided with an anti-skid rubber layer.
[0017] Such structure is more suitable for the exhaust pipe body, and the anti-skid rubber layer is added, so that the clamping stability is good.
[0018] Compared with the prior art, the present application can at least achieve one of the following beneficial effects:
[0019] 1. In the original supporting plate structure, the exhaust pipe clamping structure is arranged on the top surface, so that when the exhaust pipe body is placed on the top surface of the base, the stability of the exhaust pipe body is good, and in the process of pushing the push rod, the exhaust pipe body will not be deviated, which is more conducive to the accuracy and efficiency of the test result.
[0020] 2. When the rubber block needs to be replaced, the baffle is twisted first, the rotating block is rotated in the rotating groove, the rotating block is moved out of the rotating groove, the baffle is moved out of the fixed shaft end, and the baffle no longer limits the rubber block, then the rubber block is pulled out of the surface of the fixed shaft, so that the rubber block is replaced, and the plug head seals the exhaust pipe body with different inner wall diameters.
[0021] 3. The clamping threaded rod pushes the clamping plate inward, the clamping plate is in contact with the outer wall of the exhaust pipe body to realize clamping and fixing work, the clamping threaded rod pulls the clamping plate outward, and the clamping plate is away from the exhaust pipe body to realize the work of loosening the exhaust pipe body, and the structure is simple.
[0022] 4. The structure of the clamping plate is more suitable for the exhaust pipe body, and the anti-skid rubber layer is added, so that the clamping stability is good. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 The structure of the present application is shown in the figure.
[0024] Figure 2 Figure 1 is a structural schematic view of a plug head of the present application.
[0025] Figure 3 Figure 1 is a structural schematic view of a plug head of the present application. Figure 1 Figure 1 is a structural schematic view of a plug head of the present application.
[0026] Figure 4 Figure 1 is a structural schematic view of a plug head of the present application. Figure 1 Figure 1 is a structural schematic view of a plug head of the present application.
[0027] Figure 5 Figure 1 is a structural schematic view of a plug head of the present application. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0029] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0031] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0032] In the description of the utility model, it needs to explain that, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, or the orientation or positional relationship commonly understood by those skilled in the art, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.
[0033] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Specific embodiments
[0034] Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 A kind of leak detection tooling of good stability of connected exhaust pipe is shown, the described including exhaust pipe main body 1, base 2, good stability of auxiliary support structure 3, the top surface of base 2 is equipped with pad 4, the top surface of pad 4 is equipped with limiting groove 5, the both ends of exhaust pipe main body 1 are equipped with plug head 6, the outer end of one end plug head 6 is equipped with push rod 7, the outer end of the other end plug head 6 is then connected with exhaust pipe plug 9 by connecting rod 8, the welding scar part of exhaust pipe main body 1 middle part is equipped with winding band 10, when leak detection, the welding scar part of exhaust pipe main body 1 middle part is located in limiting groove 5, the good stability of auxiliary support structure 3 is arranged at the both sides of pad 4, the good stability of auxiliary support structure 3 includes the positioning block 31, support 32, support plate connecting block 33, support plate 34 and exhaust pipe clamping structure 35 arranged in sequence from bottom to top, the support plate connecting block 33 is rotatably connected with the top surface of support 32.
[0035] In the present scheme, exhaust pipe clamping structure is additionally provided on the top surface of the original support plate structure, so that when the exhaust pipe main body is placed on the top surface of the base, the stability of the exhaust pipe main body is good, and during the process of pushing the push rod, the exhaust pipe main body will not deviate, which is more conducive to the accuracy of test results and more efficient. Specific embodiments
[0036] The plug 6 is further described based on the specific embodiment 1. The plug 6 comprises a push plate 61, a rubber block 62, a fixed shaft 63, a baffle 64, a rotating block 65 and a rotating groove 66. The push rod 7 and the connecting rod 8 are connected with the push plate 61. The middle part of the other end of the push plate 61 is connected with the fixed shaft 63. The rubber block 62 is arranged around the fixed shaft 63. The other end of the fixed shaft 63 is provided with the rotating groove 66. The rotating block 65 is embedded in the rotating groove 66. The baffle 64 is connected with the rotating block 65. The outer end surface of the baffle 64 is in close contact with the inner end surface of the rubber block 62.
[0037] Through the design, when the rubber block needs to be replaced, the baffle is twisted first. The baffle drives the rotating block to rotate in the rotating groove. The rotating block is moved out of the rotating groove. The baffle is moved out of the end of the fixed shaft. After the baffle no longer limits the rubber block, the rubber block is pulled. The rubber block is moved out of the surface of the fixed shaft. Thus, the rubber block is convenient to replace. By replacing the rubber blocks with different outer side wall diameters, the plug is convenient to seal the exhaust pipe body with different inner wall diameters. Specific embodiment
[0038] The exhaust pipe plug 9 is further described based on the specific embodiment 1. The outer wall of the exhaust pipe plug 9 is provided with a hinge connecting buckle 91. The exhaust pipe plug 9 is detachably connected with the hinge 11 through the hinge connecting buckle 91. One end of the hinge 11 is provided with a mountaineering buckle for connecting with the hinge connecting buckle 91. The other end of the hinge 11 is hingedly connected with the base 2.
[0039] The connecting rope is used in the previous scheme. The hinge is used in the scheme. Compared with the connecting rope, the hinge is less likely to be damaged. Through the cooperation of the hinge connecting buckle and the mountaineering buckle, the exhaust pipe plug is convenient to replace. The exhaust pipe plug is suitable for exhaust pipe bodies with different diameters. Specific embodiment
[0040] The base 2 is further described based on the specific embodiment 1. The top surface of the base 2 is further provided with an auxiliary supporting structure positioning groove 21. The auxiliary supporting structure positioning groove 21 is located on both sides of the cushion block 4. The bottom surface of the auxiliary supporting structure positioning groove 21 is uniformly provided with an in-groove positioning tooth row. The setting direction of the teeth of the in-groove positioning tooth row is perpendicular to the horizontal projection direction of the exhaust pipe body 1. The bottom of the positioning block 31 is provided with a positioning block positioning tooth row matched with the in-groove positioning tooth row. Specific embodiment
[0041] The embodiment is further illustrated on the basis of the exhaust pipe clamping structure 35 in specific embodiment 1, the exhaust pipe clamping structure 35 includes fixed plate 351, clamping plate 352 and clamping threaded rod 353, the fixed plate 351 is fixed on the top surface of the two sides of the supporting plate 34, the clamping threaded rod 353 is threadedly connected with the fixed plate 351 in the middle part of the fixed plate 351, the clamping plate 352 is arranged on the inner side of the fixed plate 351, and the inner end of the clamping threaded rod 353 is rotatably connected with the clamping plate 352.
[0042] Rotating the clamping threaded rod, the clamping threaded rod pushes the clamping plate inward, the clamping plate is in contact with the outer wall of the exhaust pipe body, and clamping and fixing work can be realized, rotating the clamping threaded rod, the clamping threaded rod pulls the clamping plate outward, the clamping plate is away from the exhaust pipe body, and the work of loosening the exhaust pipe body can be realized, so that the structure is simple. Specific embodiment
[0043] The clamping plate 352 is further illustrated on the basis of specific embodiment 5, the cross section of the clamping plate 352 is arc-shaped, and the inner end face of the clamping plate 352 is provided with an anti-skid rubber layer.
[0044] The structure of the clamping plate is more fitted with the exhaust pipe body, and the anti-skid rubber layer is increased, so that the stability of clamping is good.
[0045] Although the utility model has been illustrated in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A leak detection tool for a twin exhaust pipe with good stability, characterized in that: The exhaust pipe body (1), the base (2), the stable auxiliary support structure (3), the top surface of the base (2) is provided with a cushion block (4), the top surface of the cushion block (4) is provided with a limiting groove (5), the both ends of the exhaust pipe body (1) are provided with a plug (6), the outer end of one end plug (6) is provided with a push rod (7), the outer end of the other end plug (6) is connected with an exhaust pipe plug (9) through a connecting rod (8), the weld scar part of the middle part of the exhaust pipe body (1) is provided with a winding belt (10), when leakage is detected, the weld scar part of the middle part of the exhaust pipe body (1) is located in the limiting groove (5), the stable auxiliary support structure (3) is arranged on the both sides of the cushion block (4), the stable auxiliary support structure (3) comprises a positioning block (31), a support (32), a supporting plate connecting block (33), a supporting plate (34) and an exhaust pipe clamping structure (35) arranged in sequence from bottom to top, and the supporting plate connecting block (33) is rotatably connected with the top surface of the support (32).
2. The method of claim 1, wherein: The plug (6) comprises a push plate (61), a rubber block (62), a fixed shaft (63), a baffle (64), a rotating block (65) and a rotating groove (66), the push rod (7) and the connecting rod (8) are connected with the push plate (61), the middle part of the other end of the push plate (61) is connected with the fixed shaft (63), the rubber block (62) is arranged around the fixed shaft (63), the other end of the fixed shaft (63) is provided with the rotating groove (66), the rotating block (65) is embedded in the rotating groove (66), the baffle (64) is connected with the rotating block (65), and the outer end surface of the baffle (64) is attached to the inner end surface of the rubber block (62).
3. The method of claim 1, wherein: The outer wall of the exhaust pipe plug (9) is provided with a hinge connecting buckle (91), the exhaust pipe plug (9) is detachably connected with a hinge (11) through the hinge connecting buckle (91), one end of the hinge (11) is provided with a mountaineering buckle for connecting with the hinge connecting buckle (91), and the other end of the hinge (11) is hingedly connected with the base (2).
4. The method of claim 1, wherein: The top surface of the base (2) is also provided with an auxiliary support structure positioning groove (21), the auxiliary support structure positioning groove (21) is located on the both sides of the cushion block (4), the bottom surface of the auxiliary support structure positioning groove (21) is uniformly provided with a groove inner positioning tooth row, the tooth setting direction of the groove inner positioning tooth row is perpendicular to the horizontal projection direction of the exhaust pipe body (1), and the bottom of the positioning block (31) is provided with a positioning block positioning tooth row matched with the groove inner positioning tooth row.
5. The method of claim 1, wherein: The exhaust pipe clamping structure (35) comprises a fixed plate (351), a clamping plate (352) and a clamping threaded rod (353), the fixed plate (351) is fixed on the both sides of the top surface of the supporting plate (34), the clamping threaded rod (353) is arranged in the middle part of the fixed plate (351) and is in threaded connection with the fixed plate (351), the clamping plate (352) is arranged on the inner side of the fixed plate (351), and the inner end of the clamping threaded rod (353) is rotatably connected with the clamping plate (352).
6. The method of claim 5, wherein: The section of the clamping plate (352) is arc-shaped, and the inner end surface of the clamping plate (352) is provided with an antiskid rubber layer.