Air tightness detection equipment for exhaust pipe

Abstract

The utility model provides air tightness detection equipment for an exhaust pipe, which relates to the field of air tightness detection equipment and comprises a detection mold on an exhaust pipe detection rack, and the detection mold is arranged on a table top of the exhaust pipe detection rack and is used for fixing a pipe fitting. According to the device, the sleeved pipe fitting and the detection mold are supported by the stabilizing frame, and the positioning pressing plate capable of moving up and down is arranged at the upper part of the stabilizing frame, so that the upper part can be pressed after supporting, and the stability is further improved; the first stabilizing pad and the second stabilizing pad are respectively arranged, so that the friction force of the contact surface can be increased, the stability of the joint is further improved, and the problem that the subsequent detection effect is influenced due to local instability in the process of filling gas with certain pressure into the sleeve is avoided.

Description

Technical Field

[0001] The utility model relates to the field of airtight detection equipment, in particular to an exhaust pipe airtight detection equipment. Background Art

[0002] In a scenario related to the optimization of the exhaust system, as a key component, a muffler is installed at the end or a specific position of the exhaust pipe to effectively reduce the noise pollution generated when the engine exhausts. This design makes the muffler naturally located outside the exhaust pipe. As the terminal part of the exhaust path, it absorbs and reflects sound waves through its internal complex acoustic structure to achieve the noise reduction effect.

[0003] When it is necessary to test the stability and airtightness of the entire exhaust system, a mold is introduced to fix the entire exhaust pipe system, including all components such as the muffler. The design of the mold can fix the entire system as a stable whole, ensuring that the system can resist external vibrations and impacts during testing or actual use, while maintaining the internal gas tightness and preventing leakage.

[0004] However, during a specific airtightness detection process, although both ends of the exhaust pipe are firmly fixed by the mold, when detecting the airtightness of the sleeve (which may be a part of the exhaust pipe or a component connected thereto), a certain pressure of gas is filled into the sleeve. During this process, although the fixation at both ends ensures basic stability, the middle part of the sleeve may lack direct support or stabilizing measures and exhibit local instability under the action of gas pressure. For this reason, an exhaust pipe airtight detection equipment is proposed. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides an exhaust pipe airtight detection equipment. While the stabilizing frame supports the sleeved pipe fittings and the detection mold, a positioning pressure plate that can move up and down is arranged at the upper part thereof to press the upper part after the support, so as to further improve the stability. For the contact surfaces of the stabilizing frame and the positioning pressure plate, a first stabilizing pad and a second stabilizing pad are respectively arranged, so as to increase the friction force of the contact surface and further improve the firmness of the connection. The above can avoid the problem that the subsequent detection effect is affected due to local instability during the process of filling a certain pressure of gas into the sleeve.

[0006] In order to solve the above technical problems, the utility model solves the problem that the exhaust pipe airtight detection equipment lacks support and is unstable during use through the following technical solutions.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An exhaust pipe airtight detection device includes a detection mold on an exhaust pipe detection rack. The detection mold is arranged on the tabletop of the exhaust pipe detection rack and fixes the pipe fittings. The lower end of the detection mold is supported by a set stable frame, and the upper end is stabilized by a movable positioning pressure plate. The contact surface of the stable frame is provided with a first stable pad, and the contact surface of the positioning pressure plate is provided with a second stable pad.

[0009] Preferably, both ends of the first stable pad are connected with elastic clamping plates and clamped on the stable frame.

[0010] Preferably, a clamping plate is connected to the second stable pad, and a clamping groove is formed on the positioning pressure plate, and the clamping plate is inserted therein.

[0011] Preferably, the clamping plate has elasticity and generates mutual extrusion force with the inner wall of the clamping groove.

[0012] Preferably, magnetic attraction convex layers are connected to the front and rear ends of the bottom of the positioning pressure plate, and a plurality of magnetic attraction structures are arranged on the top of the stable frame and cooperate with the magnetic attraction convex layers to generate a magnetic attraction state.

[0013] Preferably, the positioning pressure plate is supported on the tabletop of the exhaust pipe detection rack through a fixing frame. A hydraulic component is arranged on the fixing frame, and the movement of the positioning pressure plate is controlled by the extension of the hydraulic rod of the hydraulic component.

[0014] Preferably, two groups of stable frames are provided and are respectively located on both sides of the detection mold.

[0015] Preferably, the stable frame is supported on the tabletop of the exhaust pipe detection rack through a support frame.

[0016] Preferably, a connecting plate is arranged at the bottom of the stable frame, and the connecting plate and the support frame are locked through a plurality of threaded rotating rods.

[0017] Preferably, one end of the threaded rotating rod extending out of the support frame is rotationally connected with a first locking sleeve through threads, and one end extending out of the connecting plate is rotationally connected with a second locking sleeve through threads.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The exhaust pipe airtight detection equipment provided by this application, through the set stabilizing frame, while supporting the sleeved pipe fittings and the detection mold, has a positioning pressing plate that can move up and down at its upper part, so as to press the upper part after support to further improve stability. For the contact surfaces of the stabilizing frame and the positioning pressing plate, a first stabilizing pad and a second stabilizing pad are respectively set, so as to increase the friction force of the contact surface and further improve the firmness of the connection. The above can avoid the problem that the subsequent detection effect is affected due to local instability during the process of filling a certain pressure of gas into the sleeve.

[0020] In this application, the first stabilizing pad is installed through the set clamping plate, and the positioning pressing plate is installed through the set clamping plate and clamping groove, so as to facilitate the disassembly, assembly and replacement of the first stabilizing pad and the positioning pressing plate according to the use requirements. Brief Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 It is a schematic diagram of the disassembled overall structure of the present utility model;

[0024] Figure 3 It is a schematic diagram of the partial structure at the detection mold, stabilizing frame and positioning pressing plate of the present utility model;

[0025] Figure 4 It is a schematic diagram of the disassembled partial structure at the positioning pressing plate and the second stabilizing pad of the present utility model;

[0026] Figure 5 It is a schematic diagram of the partial structure seen from below at the second stabilizing pad of the present utility model;

[0027] Figure 6 It is a schematic diagram of the partial structure at the stabilizing frame and the support frame of the present utility model;

[0028] Figure 7 It is a schematic diagram of the disassembled partial structure at the stabilizing frame and the support frame of the present utility model.

[0029] Description of figure numbers: 1. Exhaust pipe detection rack; 101. Detection mold; 2. Stabilizing frame; 201. Connecting plate; 202. Magnetic structure; 3. First stabilizing pad; 301. Clamping plate; 4. Positioning pressure plate; 401. Second stabilizing pad; 402. Clamping board; 403. Card slot; 404. Magnetic convex layer; 5. Support frame; 6. Threaded rotating rod; 601. First locking sleeve; 602. Second locking sleeve; 7. Fixed frame; 701. Hydraulic component. Detailed implementation mode

[0030] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious deformations. The basic principles defined in the following description can be used in other implementation schemes, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present utility model.

[0032] Those skilled in the art should understand that in the disclosure of the present utility model, the directions or positions indicated by terms such as "longitudinal", "lateral", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions or position relationships shown in the accompanying drawings. It is only for the convenience of simplifying the description of the present utility model, rather than indicating or implying that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be construed as limiting the present utility model.

[0033] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of one component can be one, and in other embodiments, the number of this component can be multiple. The term "one" should not be construed as a limitation on the quantity. Embodiment

[0034] Please refer to Figure 1 - Figure 7 , an exhaust pipe airtight detection device, including a detection mold 101 on an exhaust pipe detection rack 1. The detection mold 101 is arranged on the table surface of the exhaust pipe detection rack 1 and fixes the pipe fittings. The lower end of the detection mold 101 is supported by a stabilizing frame 2 arranged, and the upper end is stabilized by a movable positioning pressure plate 4 arranged. The contact surface of the stabilizing frame 2 is provided with a first stabilizing pad 3, and the contact surface of the positioning pressure plate 4 is provided with a second stabilizing pad 401.

[0035] Please refer to Figure 1 、 Figure 2 、 Figure 3 、Figure 4 , Figure 5 , Figure 6 and Figure 7 , the exhaust pipe airtight detection device of the present application is mainly composed of structures such as an exhaust pipe detection frame 1 and a detection mold 101. When a pipe fitting is sleeved on the detection mold 101 and air is inflated inward while fixing both ends thereof, a stabilizing frame 2 for supporting it is provided at the lower end of the detection mold 101. In this way, during the operation, while the whole is erected, a positioning pressing plate 4 that can be lifted and lowered is provided at the upper end of the detection mold 101. After the sleeve is fixed, the positioning pressing plate 4 can be adjusted to descend and press it onto the detection mold 101, that is, the surface of the sleeve, so as to further stabilize the middle part. A connecting plate 201 is designed for the contact surface between the connecting plate 201 and the sleeve, and a second stabilizing pad 401 is designed for the contact surface between the positioning pressing plate 4 and the sleeve. Both the connecting plate 201 and the second stabilizing pad 401 are made of rubber material. During the contact process between the stabilizing frame 2 and the positioning pressing plate 4 and the sleeve, the friction force of the contact surface can be increased to further improve the stability of the connection part. The above can avoid the problem that the overall test effect is affected due to local instability during the process of injecting a certain pressure of gas into the sleeve.

[0036] In the present application, a clamping plate 301 is also provided. The clamping plate 301 is glued on both sides of the first stabilizing pad 3. It has elasticity. After deforming it by acting on it, the first stabilizing pad 3 can be driven to clamp on the outer wall of the stabilizing frame 2. In this way, while installing the first stabilizing pad 3, it is also convenient for subsequent disassembly operations.

[0037] In the present application, a clamping plate 402 and a clamping groove 403 are also provided. Among them, the clamping plate 402 is glued on the second stabilizing pad 401, and the clamping groove 403 is opened on the surface where the second stabilizing pad 401 contacts the positioning pressing plate 4. In this way, when the second stabilizing pad 401 is installed on the inner surface of the positioning pressing plate 4, the clamping plate 402 can be driven to be inserted into the clamping groove 403 at the same time and generate a large friction force with its inner wall, so as to fix the second stabilizing pad 401 on the positioning pressing plate 4, and it is also convenient for disassembly and assembly operations according to the use requirements.

[0038] In the present application, a magnetic attraction structure 202 and a magnetic attraction convex layer 404 are also provided. The magnetic attraction structure 202 is installed at the front and rear ends of the top of the stabilizing frame 2. When the pipe fitting is sleeved on the detection mold 101 and supported on the stabilizing frame 2, by lowering the positioning pressing plate 4 to press the upper part thereof, the stability can be ensured. At this time, the designed magnetic attraction convex layers 404 are respectively located on the flat parts at the front and rear ends of the positioning pressing plate 4. In this way, during the process of lowering the positioning pressing plate 4 to press, the positioning pressing plate 4 is in contact with the connecting plate 201. At this time, a magnetic attraction is generated between the designed magnetic attraction structure 202 and the magnetic attraction convex layer 404, and they are tightly connected together to further ensure the stability of the contact surface between the two.

[0039] It should also be noted that the length design of the magnetic attraction convex layer 404 enables the magnetic attraction structure 202 to move relatively thereon.

[0040] In this application, a fixing frame 7 and a hydraulic component 701 are also provided. The fixing frame 7 is used to support the positioning pressing plate 4 on the tabletop of the exhaust pipe detection rack 1. A hydraulic component 701 is installed on one side of the fixing frame 7. The hydraulic component 701 is an automatic hydraulic telescopic rod. The extended part of the extension rod of the hydraulic component 701 is connected to the positioning pressing plate 4. By controlling the lifting of the hydraulic component 701, the up and down height of the positioning pressing plate 4 can be adjusted to improve the convenience of use.

[0041] In this application, a support frame 5 and a threaded rotating rod 6 are also provided. Among them, there are two sets of stabilizing frames 2, which are respectively located on both sides of the bottom of the detection mold 101 and are used for support. When the support frame 5 is installed on the tabletop of the exhaust pipe detection rack 1 through bolts, the connecting plate 201 can be erected. For the design of the stabilizing frame 2, it can move relative to the stabilizing frame 2. The two are rotationally and threadedly connected by a relatively long threaded rotating rod 6. To facilitate the combination, in the use state, only the stabilizing frame 2 and the support frame 5 need to be fixed, and by rotating the threaded rotating rod 6, the position of the stabilizing frame 2 can be moved left and right, so as to conveniently adjust the position supported by the stabilizing frame 2 according to the use requirements.

[0042] In this application, a connecting plate 201, a first locking sleeve 601 and a second locking sleeve 602 are also provided. The stabilizing frame 2 and the connecting plate 201 are designed as an integral structure, which can be connected to the vertical part of the support frame 5 and move relative to it. The first locking sleeve 601 is sleeved on the threaded rotating rod 6 through the connecting plate 201 and one end of the support frame 5 and rotates threadedly. The second locking sleeve 602 is sleeved on the threaded rotating rod 6 through the connecting plate 201 and one end of the support frame 5 and rotates threadedly. Thus, after the position of the connecting plate 201 is adjusted, by rotating and adjusting the first locking sleeve 601 and the first locking sleeve 601, the two ends of the threaded rotating rod 6 are locked, so as to perform a limiting operation on the stabilizing frame 2.

[0043] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The object of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and described in the embodiments. Without departing from the said principles, the embodiments of the present invention can have any deformation or modification.

Claims

1. An exhaust pipe airtight detection device, characterized in that: It includes a detection mold (101) on an exhaust pipe detection rack (1). The detection mold (101) is arranged on the tabletop of the exhaust pipe detection rack (1) to fix the pipe fitting. The lower end of the detection mold (101) is supported by a set stable frame (2), and the upper end is stabilized by a movable positioning pressure plate (4). A first stable pad (3) is provided on the contact surface of the stable frame (2), and a second stable pad (401) is provided on the contact surface of the positioning pressure plate (4).

2. The airtight detection device for an exhaust pipe according to claim 1, wherein: Both ends of the first stable pad (3) are connected with elastic clamping plates (301) and clamped on the stable frame (2).

3. The airtight detection device for an exhaust pipe according to claim 2, wherein: A clamping plate (402) is connected to the second stable pad (401). A clamping groove (403) is formed on the positioning pressure plate (4), and the clamping plate (402) is inserted therein.

4. An exhaust pipe airtight detection device according to claim 3, characterized in that: The clamping plate (402) has elasticity and generates mutual extrusion force with the inner wall of the clamping groove (403).

5. The airtight detection device for an exhaust pipe according to claim 1, wherein: Magnetic attraction convex layers (404) are connected to the front and rear ends of the bottom of the positioning pressure plate (4). A number of magnetic attraction structures (202) are provided on the top of the stable frame (2) and cooperate with the magnetic attraction convex layers (404) to generate a magnetic attraction state.

6. The airtight detection device for an exhaust pipe according to claim 1, characterized in that: The positioning pressure plate (4) is supported on the tabletop of the exhaust pipe detection rack (1) by a fixing frame (7). A hydraulic component (701) is provided on the fixing frame (7), and the movement of the positioning pressure plate (4) is controlled by the extension of the hydraulic rod of the hydraulic component (701).

7. An exhaust pipe airtightness detection device according to claim 1, characterized in that: Two groups of the stable frames (2) are provided and are respectively located on both sides of the detection mold (101).

8. An exhaust pipe airtight detection device according to claim 1, characterized in that: The stable frame (2) is supported on the tabletop of the exhaust pipe detection rack (1) by a support frame (5).

9. An exhaust pipe airtight detection device according to claim 8, characterized in that: A connecting plate (201) is provided at the bottom of the stable frame (2). A number of threaded rotating rods (6) are used to lock between the connecting plate (201) and the support frame (5).

10. An exhaust pipe airtight detection device according to claim 9, characterized in that: One end of the threaded rotating rod (6) extending outside the support frame (5) is threadedly rotatably connected with a first locking sleeve (601), and one end extending outside the connecting plate (201) is threadedly rotatably connected with a second locking sleeve (602) through the second locking sleeve (602).

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