Air tightness detection device for silencer assembly

Abstract

The utility model discloses an air tightness detection device for a silencer assembly, relates to the technical field of silencer detection equipment, and aims to solve the problems that hydraulic and pneumatic clamps are high in failure rate, high in requirements on operators, low in detection efficiency and high in detection cost. Comprising a workbench, a supporting seat and an inlet sealing assembly, the supporting seat for supporting a silencer assembly is arranged on the workbench, the inlet sealing assembly for sealing an inlet of the silencer assembly is arranged on the workbench, an outlet of the silencer assembly is provided with an outlet sealing plug, and the outlet sealing plug is connected with the silencer assembly. The working table is provided with a support for supporting the outlet sealing plug, the working table is further provided with a clamping rod for the silencer assembly, and an inlet sealing assembly is arranged on the working table, can seal an inlet of the silencer assembly and is matched with the outlet sealing plug to plug an outlet of the silencer assembly. And sealing of the silencer assembly is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of muffler detection equipment, and particularly relates to an air tightness detection device for a muffler assembly. Background Art

[0002] After the muffler assembly is welded, air tightness tests need to be carried out on each welding point. During the test, the pipe orifice needs to be sealed, and at the same time, high-pressure air is filled into the muffler to detect the welding quality at the welding points. The existing detection methods usually use pneumatic or hydraulic fixtures to seal the pipe orifice, and then fill high-pressure gas into the pipeline. However, the hydraulic and pneumatic fixtures have high failure rates, require high operating personnel requirements, low detection efficiency, and high detection costs.

[0003] Therefore, this application provides an air tightness detection device for a muffler assembly to meet the requirements. Summary of the Utility Model

[0004] The purpose of this application is to provide an air tightness detection device for a muffler assembly, aiming to solve the problems of high failure rates of hydraulic and pneumatic fixtures, high requirements for operating personnel, low detection efficiency, and high detection costs.

[0005] To achieve the above purpose, this application provides the following technical solution: an air tightness detection device for a muffler assembly, including a workbench, a support seat, and an inlet sealing assembly. The support seat for supporting the muffler assembly is arranged on the workbench, the inlet sealing assembly for sealing the inlet of the muffler assembly is arranged on the workbench, an outlet sealing plug is arranged at the outlet of the muffler assembly, a support for supporting the outlet sealing plug is arranged on the workbench, and a clamping rod for the muffler assembly is also arranged on the workbench. By arranging the inlet sealing assembly on the workbench, the inlet of the muffler assembly can be sealed, and in cooperation with the outlet sealing plug, the outlet of the muffler assembly can be blocked, realizing the sealing of the muffler assembly.

[0006] Preferably, there are two groups of the clamping rods, and the two groups of clamping rods are installed on the workbench through a mounting plate.

[0007] Preferably, the inlet sealing assembly includes a bracket and an inlet sealing plug. The bracket is arranged on the workbench, a rotating shaft is rotatably connected to the bracket, a channel for gas to pass through is opened on the rotating shaft, and both ends of the channel are communicated with the inlet sealing plug and an air inlet interface respectively.

[0008] Preferably, an auxiliary rod for assisting in limiting the muffler assembly is also arranged on the workbench. By arranging the support seat, the auxiliary rod, and the support on the workbench to support the muffler assembly, the test process is efficient and convenient, without complex operations, and greatly reduces the detection cost.

[0009] Preferably, a limiting component for pressing and limiting the muffler component is further provided on the workbench. The limiting component includes a pressing plate and a hook. The pressing plate is installed on the workbench through a support column, and one end of the pressing plate is hinged to the support column. The other end of the pressing plate is hinged with the hook. A torsion spring is further provided between the hook and the pressing plate to keep the hook perpendicular to the pressing plate in the natural state. A hook plate adapted to the hook is also provided on the workbench. By setting the limiting component on the workbench and further pressing and limiting the muffler component through the limiting component, the airtightness detection can be carried out more stably.

[0010] Preferably, the pressing plate is made of an elastic element. Bevel surfaces are respectively formed on the opposite surfaces of the hook and the hook plate, and they are slidably connected.

[0011] In summary, the technical effects and advantages of the present utility model are as follows:

[0012] In the present utility model, an inlet sealing component is provided on the workbench to seal the inlet of the muffler component, and an outlet sealing plug is used in cooperation to block the outlet of the muffler component, thereby realizing the sealing of the muffler component. A support seat, an auxiliary rod and a support are provided on the workbench to support the muffler component. The testing process is efficient and convenient, without complex operations, and the detection cost is greatly reduced.

[0013] In the present utility model, a limiting component is provided on the workbench. By further pressing and limiting the muffler component through the limiting component, the airtightness detection can be carried out more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a partial exploded view of the present utility model;

[0017] Figure 3 is a schematic diagram of the inlet sealing component of the present utility model;

[0018] Figure 4 is a schematic diagram of the limiting component of the present utility model.

[0019] In the figure: 1. Workbench; 2. Muffler assembly; 3. Support; 4. Support base; 5. Inlet sealing assembly; 6. Limit assembly; 7. Mounting plate; 8. Positioning rod; 9. Auxiliary rod; 10. Outlet sealing plug.

[0020] 51. Bracket; 52. Rotating shaft; 53. Inlet sealing plug; 54. Air inlet interface; 55. Channel.

[0021] 61. Hook plate; 62. Hook; 63. Pressure plate; 64. Support column. Specific implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0023] Refer to Figures 1-4 A muffler assembly airtightness detection device as shown, including a workbench 1, a support base 4 and an inlet sealing assembly 5. The workbench 1 is provided with the support base 4 for supporting the muffler assembly 2. There are two groups of support bases 4, and the support base 4 is provided with a groove for supporting the muffler assembly 2. The workbench 1 is provided with an inlet sealing assembly 5 for sealing the inlet of the muffler assembly 2. An outlet sealing plug 10 is provided at the outlet of the muffler assembly 2. The workbench 1 is provided with a support 3 for supporting the outlet sealing plug 10, and the support 3 is provided with a receiving groove for placing the outlet sealing plug 10. The workbench 1 is also provided with a positioning rod 8 for the muffler assembly 2. There are two groups of positioning rods 8, and the two groups of positioning rods 8 are installed on the workbench 1 through a mounting plate 7. The workbench 1 is also provided with an auxiliary rod 9 for assisting in limiting the muffler assembly 2. The setting of the positioning rod 8 and the auxiliary rod 9 is to prevent the muffler assembly 2 from separating from the inlet sealing assembly 5 under the action of air pressure when the muffler assembly 2 is ventilated.

[0024] Inlet sealing assembly 5: As Figure 3 shown, it is used to block the inlet of the muffler assembly 2 and at the same time communicate with an external gas transmission device through an air inlet interface 54 to ventilate the muffler assembly 2; the inlet sealing assembly 5 includes a bracket 51 and an inlet sealing plug 53. The bracket 51 is provided on the workbench 1, and a rotating shaft 52 is rotatably connected to the bracket 51. A channel 55 for gas passage is provided on the rotating shaft 52, and both ends of the channel 55 are respectively communicated with the inlet sealing plug 53 and the air inlet interface 54.

[0025] Limit component 6: As Figure 4 shown, it is used to press and limit the muffler component 2. There is also a limit component 6 on the workbench 1 for pressing and limiting the muffler component 2. The limit component 6 includes a pressing plate 63 and a hook 62. The pressing plate 63 is installed on the workbench 1 through a support column 64, and one end of the pressing plate 63 is hinged to the support column 64. The other end of the pressing plate 63 is hinged with the hook 62. A torsion spring is provided between the hook 62 and the pressing plate 63 to keep the hook 62 perpendicular to the pressing plate 63 in its natural state. There is also a hook plate 61 on the workbench 1 that is adapted to the hook 62. The pressing plate 63 is made of an elastic element. The opposite surfaces of the hook 62 and the hook plate 61 are both provided with inclined surfaces, and they are slidably connected to each other.

[0026] Working principle of the present utility model: During use, rotate the rotating shaft 52 to drive the inlet sealing plug 53 to rotate along with the rotating shaft 52, making the opening of the inlet sealing plug 53 face upward. Install the inlet of the muffler component 2 at the inlet sealing plug 53 to seal the inlet of the muffler component 2. Install the outlet sealing plug 10 at the outlet of the muffler component 2 to seal the outlet of the muffler component 2. Rotate the muffler component 2 to drive the inlet sealing plug 53 and the rotating shaft 52 to rotate on the bracket 51. Place the muffler component 2 on the support seat 4. The muffler component 2 with the outlet sealing plug 10 falls on the support 3, and the support 3 supports and limits the outlet sealing plug 10. At this time, the positioning rod 8 and the auxiliary rod 9 on the mounting plate 7 both position the muffler component 2. Rotate the pressing plate 63 to drive the hook 62 to rotate around the hinge with the support column 64 to press and limit the muffler component 2. The inclined surface on the hook 62 is in contact with the inclined surface on the hook plate 61. Under the pushing of the hook plate 61, the hook 62 rotates around the hinge with the pressing plate 63, and the torsion spring stores energy. When the hook 62 separates from the hook plate 61, the hook 62 resets under the elastic force of the torsion spring and can contact the hook plate 61 to press and limit the muffler component 2. The air inlet interface 54 can be connected to an external gas transmission device to detect the sealing performance of the muffler component 2.

[0027] The electromechanical connection involved in the present utility model is a common means adopted by those skilled in the art and can obtain technical inspiration through a limited number of tests, belonging to well-known common knowledge.

[0028] The components not described in detail in this article are prior arts.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A muffler assembly air tightness detection device, characterized in that: The invention comprises a workbench (1), a support seat (4) and an inlet sealing assembly (5), wherein the workbench (1) is provided with the support seat (4) for supporting the muffler assembly (2), the workbench (1) is provided with the inlet sealing assembly (5) for sealing the inlet of the muffler assembly (2), an outlet sealing plug (10) is provided at the outlet of the muffler assembly (2), the workbench (1) is provided with a support seat (3) for supporting the outlet sealing plug (10), and the workbench (1) is also provided with a locking rod (8) for the muffler assembly (2).

2. The muffler assembly air tightness detection device according to claim 1, characterized in that: The locking rods (8) are provided in two groups, and the two groups of the locking rods (8) are mounted on the workbench (1) via a mounting plate (7).

3. The muffler assembly air tightness detection device according to claim 1, characterized in that: The inlet sealing assembly (5) comprises a bracket (51) and an inlet sealing plug (53); the bracket (51) is arranged on the workbench (1); a rotating shaft (52) is rotatably connected to the bracket (51); a channel (55) for gas to pass through is provided on the rotating shaft (52); two ends of the channel (55) are respectively connected to the inlet sealing plug (53) and the air inlet interface (54).

4. The muffler assembly air tightness detection device according to claim 1, characterized in that: The workbench (1) is also provided with an auxiliary rod (9) for assisting in limiting the position of the muffler assembly (2).

5. The muffler assembly air tightness detection device according to claim 1, characterized in that: The workbench (1) is also provided with a limit assembly (6) for pressing and limiting the muffler assembly (2), the limit assembly (6) comprising a pressure plate (63) and a hook (62), the pressure plate (63) being mounted on the workbench (1) via a pillar (64), one end of the pressure plate (63) being hinged to the pillar (64), the other end of the pressure plate (63) being hinged to the hook (62), a torsion spring being provided between the hook (62) and the pressure plate (63) so that the hook (62) is in a vertical state with the pressure plate (63) in a natural state, and the workbench (1) is also provided with a hook plate (61) matching the hook (62).

6. A muffler assembly air tightness detection device according to claim 5, characterized in that: The pressure plate (63) is an elastic element, and the facing surfaces of the hook (62) and the hook plate (61) are both provided with inclined surfaces, and the two are slidably connected.

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