Sealing performance detection device for commercial vehicle blow molding energy-saving air inlet pipe production

Abstract

The utility model discloses a sealing performance detection device for commercial vehicle blow molding energy-saving air inlet pipe production, which relates to the technical field of commercial vehicle air inlet pipe sealing performance monitoring and comprises an air tightness detector, an air inlet hose and a pipeline sealing clamping tool. The pipeline sealing and clamping tool is composed of a supporting shell, a first inner plugging column, a second inner plugging column and two pipe outer clamping pieces. The first inner plugging column is provided with a vent hole connected with the detector; two ends of the air inlet hose sleeve the peripheries of the inner plugging columns; the outside-pipe clamping piece is provided with a cylinder, an annular air bag and a gas power source, and the gas power source is connected with the annular air bag; according to the pipeline sealing and clamping tool, inflation is conducted through a gas power source, the inner ring of the annular air bag is divided into three rings to expand inwards under the action of the annular pressing groove and the supporting ring, the annular air bag is tightly attached to the outer wall of a hose, the pipeline sealing and clamping tool is suitable for hoses of different specifications and materials, it is guaranteed that air leakage is avoided during detection, and accuracy and reliability are improved; and then the outside-pipe clamping piece adopts an electric push cylinder to drive the sealed corrugated pipe to inflate, so that the air inlet hose can be quickly clamped and loosened.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing monitoring of air intake pipes of commercial vehicles, in particular to a sealing detection device for producing blow-molded energy-saving air intake pipes of commercial vehicles. Background Art

[0002] In the manufacturing process of commercial vehicles, the air intake pipe is a key component of the engine's air intake system, and its sealing is directly related to the engine's performance and the operational reliability of the entire vehicle. Traditional commercial vehicle air intake pipe sealing monitoring processes mainly rely on simple pressure tests or watertightness tests. For example, a pressure test usually involves sealing one end of the air intake pipe and connecting the other end to a pressure source, and observing the pressure change to determine whether there is a leak. However, this method is difficult to accurately locate the leak point and has low sensitivity for detecting small leaks. The watertightness test is to fill the air intake pipe with water and observe whether there is water seepage. Although this method is intuitive, the operation is relatively cumbersome. The air intake pipe needs to be dried after the test, which is not only time-consuming and labor-intensive, but also easily causes corrosion or water stains on the inside of the air intake pipe, affecting its subsequent performance. In addition, these traditional testing methods often require a lot of manual intervention during the testing process, such as installing sealing devices, connecting test equipment, and observing test results. This leads to low test efficiency and makes it difficult to meet the needs of large-scale and high-efficiency production of modern commercial vehicles.

[0003] With the continuous development of the automobile industry and technological progress, the sealing requirements for commercial vehicle intake pipes are becoming increasingly higher, and at the same time, new challenges are being posed to the automation, precision and efficiency of the detection process. Although some existing advanced sealing detection technologies have improved the detection accuracy and efficiency to a certain extent, such as airtightness detection equipment using high-precision pressure sensors and automated control systems, there are still deficiencies in the sealing clamping link of the intake pipe. Common mechanical clamping methods, such as using clamps to clamp the intake pipe, require manual clamping, and the clamping efficiency is relatively slow. In view of this, this paper proposes a sealing detection device for the production of blow-molded energy-saving intake pipes for commercial vehicles. Utility Model Content

[0004] The main purpose of the utility model is to provide a sealing detection device for the production of blow-molded energy-saving intake pipes for commercial vehicles, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A sealing test device for the production of blow-molded energy-saving intake pipes for commercial vehicles includes an airtightness tester and an intake hose, as well as a pipe sealing clamping tool. The pipe sealing clamping tool is primarily composed of a supporting shell, a first inner blocking column, a second inner blocking column, and two outer pipe clamping members. The first inner blocking column is provided with a vent hole, the inlet of the vent hole being connected to the airtightness tester via a conduit. The openings at both ends of the intake hose are respectively fitted and mounted on the periphery of the first and second inner blocking columns.

[0007] The first inner blocking column and the second inner blocking column are both fixedly connected to the supporting shell. The outer tube clamping part mainly includes a cylinder, an annular airbag and a gas power source. The outer wall of the annular airbag is fitted on the inner wall of the cylinder. The cylinder and the supporting shell are fixedly connected, and the inner rings of the annular airbags in the two outer tube clamping parts are coaxially arranged on the periphery of the first inner blocking column and the second inner blocking column respectively. The gas power source is connected to the inner cavity of the annular airbag.

[0008] Preferably, the gas power source is mainly composed of an electric push cylinder, a limiting cylinder, and a sealed bellows. The electric push cylinder and the limiting cylinder are fixedly connected to the supporting shell. The top end of the push rod in the electric push cylinder is coaxially fixedly connected with a circular plate. The upper surface of the circular plate and the lower bottom surface of the sealed bellows are coaxially fixedly connected. The sealed bellows is coaxially arranged in the limiting cylinder. The upper surface of the sealed bellows is coaxially fixedly connected with a cover plate. The lower end of the cover plate and the top end of the limiting cylinder are coaxially fixedly connected. The top end of the sealed bellows is fixedly connected with a three-way pipe. Two ventilation pipes are fixedly connected on the three-way pipe. The ends of the two ventilation pipes are interconnected with the inner cavity of the annular airbag, and perforations for passing the ventilation pipes are provided on both sides of the cylinder.

[0009] Preferably, limit rings are coaxially fixedly mounted on both the upper and lower ends of the cylinder, and the inner diameter of the limit ring is smaller than the inner diameter of the cylinder.

[0010] Preferably, the inner ring of the annular airbag is coaxially provided with two annular pressing grooves, and a support ring is embedded in the annular pressing groove.

[0011] Preferably, a strip-shaped observation hole is provided on one side of the limiting cylinder.

[0012] Preferably, the top end of the sealed bellows is fixedly connected to an air pressure detector.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. High-efficiency sealing and clamping effect

[0015] The sealing test device for the production of blow-molded energy-saving intake pipes for commercial vehicles adopts a unique pipe sealing clamping tooling design, which uses a gas power source to inflate the annular airbag to achieve sealing clamping of the intake hose; during the inflation process, the inner ring of the annular airbag can be accurately divided into three circular rings and expand inward under the coordinated action of the annular pressure groove and the support ring, thereby tightly and evenly pressing the outer wall of the intake hose to fit against the outer wall of the first inner blocking column or the second inner blocking column; this sealing clamping method can effectively adapt to intake hoses of different specifications and materials, ensuring that no air leakage will occur during the inspection process, greatly improving the accuracy and reliability of the inspection, and providing a strong guarantee for the production quality control of commercial vehicle intake pipes.

[0016] 2. Fast and convenient clamping operation effect

[0017] The outer tube clamping part of the sealing detection device for the production of blow-molded energy-saving intake pipes for commercial vehicles adopts an electric push cylinder to drive the sealed bellows to compress the gas and then inflate the annular airbag to expand the intake hose. Compared with the traditional mechanical clamping method, this design avoids the complicated operation procedures such as thread adjustment and mechanical clamping. It only needs to control the start and stop of the electric push cylinder to quickly clamp and release the intake hose. In addition, the gas power source can make the annular airbag reach the required inflation pressure in a short time, and quickly complete the sealing and fixation of the intake hose, which greatly shortens the inspection preparation time of a single intake hose and improves the overall inspection efficiency. In the large-scale production and inspection of commercial vehicle intake pipes, it can significantly reduce labor costs and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic structural diagram of the pipeline sealing clamping tool in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the outer clamping piece of the middle tube of the utility model.

[0021] In the figure: 1. Support shell; 2. Air intake hose; 3. Clamping part outside the tube; 301. Electric push cylinder; 302. Round plate; 303. Sealed bellows; 304. Air pressure detector; 305. Tee; 306. Ventilation pipe; 307. Annular airbag; 308. Annular pressure groove; 309. Support ring; 310. Limiting ring; 311. Cylinder; 312. Perforation; 313. Limiting cylinder; 314. Strip observation hole; 315. Cover plate; 316. First circular hole; 317. Second circular hole; 4. First inner blocking column; 401. Ventilation hole; 5. Second inner blocking column. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] refer to Figure 1-Figure 3 As shown, a sealing detection device for the production of blow-molded energy-saving air intake pipes for commercial vehicles is mainly composed of an air tightness detector, an air intake hose 2, and a pipe sealing clamping tool.

[0024] refer to Figure 2 and Figure 3 The pipeline sealing clamping tooling includes a supporting shell 1, a first inner blocking column 4, a second inner blocking column 5 and two outer pipe clamping parts 3. The first inner blocking column 4 is provided with a vent hole 401, and its inlet is connected to the air tightness tester through a conduit. The two ends of the air intake hose 2 are respectively covered on the outer periphery of the first inner blocking column 4 and the second inner blocking column 5. The first inner blocking column 4 and the second inner blocking column 5 are both fixed on the supporting shell 1.

[0025] refer to Figure 3 The outer tube clamping part 3 is composed of a cylinder 311, an annular airbag 307 and a gas power source. The outer wall of the annular airbag 307 fits the inner wall of the cylinder 311. The cylinder 311 is fixed to the supporting shell 1. The inner circles of the annular airbags 307 in the two outer tube clamping parts 3 are respectively located outside the first inner blocking column 4 and the second inner blocking column 5. The gas power source is connected to the inner cavity of the annular airbag 307.

[0026] refer to Figure 3 The gas power source includes an electric push cylinder 301, a limiting cylinder 313, and a sealed bellows 303. The electric push cylinder 301 and the limiting cylinder 313 are both fixed on the supporting shell 1. The top of the push rod of the electric push cylinder 301 is connected to the circular plate 302. The circular plate 302 is fixed to the lower bottom surface of the sealed bellows 303. The sealed bellows 303 is placed in the limiting cylinder 313, and its top is fixed to the cover plate 315. The cover plate 315 is fixed to the top of the limiting cylinder 313. The top of the sealed bellows 303 is connected to the tee pipe 305, and the tee pipe 305 is connected to the inner cavity of the annular airbag 307 through two ventilation pipes 306. There are through-holes 312 on both sides of the cylinder 311 for the ventilation pipe 306 to pass through.

[0027] refer to Figure 3, the upper and lower ends of the cylinder 311 are fixed with limiting rings 310, whose inner diameter is smaller than the inner diameter of the cylinder 311, the inner circle of the annular airbag 307 has two annular pressing grooves 308, and a support ring 309 is installed in the groove. A strip observation hole 314 is provided on one side of the limiting cylinder 313. The strip observation hole 314 on the limiting cylinder 313 is mainly used to facilitate the user to observe the compression state of the sealed bellows 303. The top of the sealed bellows 303 is connected to the air pressure detector 304. The cover plate 315 is provided with a second circular hole 317 for connecting the air pressure detector 304 and a first circular hole 316 for connecting the tee pipe 305. The annular airbag 307 is made of elastic high-pressure rubber.

[0028] In the present invention, when testing the tightness of the air intake hose 2, first insert the two ends of the air intake hose 2 into the first inner blocking column 4 and the second inner blocking column 5 respectively, then start the gas power source of the clamping member 3 outside the tube, the push rod of the electric push cylinder 301 extends, and the circular plate 302 compresses the sealed bellows 303, so that the gas in its inner cavity enters the annular airbag 307 through the tee pipe 305 and the vent pipe 306. Since the pressure of the connected cavities is the same, the air pressure value detected by the air pressure detector 304 on the sealed bellows 303 can be used to determine the air pressure in the inner cavity of the annular airbag 307, and then To judge its clamping force on the air intake hose 2, the inner ring of the inflated annular airbag 307 expands, and under the action of the two annular pressure grooves 308 and the support ring 309, it is divided into three circular rings and squeezed inward, pressing the outer wall of the air intake hose 2 tightly against the outer wall of the first inner blocking column 4 or the second inner blocking column 5, so that the second inner blocking column 5 seals and blocks one outlet of the air intake hose 2, and the first inner blocking column 4 connects the inner cavity of the air intake hose 2 with the air tightness tester through the vent 401, thereby realizing the connection between the inner cavity of the air intake hose 2 and the air tightness tester, and completing the sealing test of the air intake hose 2.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A sealing detection device for the production of blow-molded energy-saving air intake pipes for commercial vehicles, comprising an air tightness detector and an air intake hose (2), characterized in that: Also includes: A pipe sealing clamping tool, the pipe sealing clamping tool mainly consists of a supporting shell (1), a first inner blocking column (4), a second inner blocking column (5) and two pipe outer clamping parts (3), the first inner blocking column (4) is provided with a vent hole (401), the inlet of the vent hole (401) is connected to an air tightness detector through a conduit, and the openings at both ends of the air inlet hose (2) are respectively fitted and installed on the periphery of the first inner blocking column (4) and the second inner blocking column (5); The first inner blocking column (4) and the second inner blocking column (5) are both fixedly connected to the supporting shell (1); the outer tube clamping member (3) mainly comprises a cylinder (311), an annular airbag (307) and a gas power source; the outer wall of the annular airbag (307) is fitted on the inner wall of the cylinder (311); the cylinder (311) and the supporting shell (1) are fixedly connected; and the inner rings of the annular airbags (307) in the two outer tube clamping members (3) are coaxially arranged on the periphery of the first inner blocking column (4) and the second inner blocking column (5), respectively; the gas power source is connected to the inner cavity of the annular airbag (307).

2. The sealing detection device for the production of blow-molded energy-saving air intake pipes for commercial vehicles according to claim 1 is characterized in that: The gas power source is mainly composed of an electric push cylinder (301), a limiting cylinder (313), and a sealed bellows (303). The electric push cylinder (301) and the limiting cylinder (313) are both fixedly connected to the supporting shell (1). The top end of the push rod in the electric push cylinder (301) is coaxially fixedly connected to a circular plate (302). The upper surface of the circular plate (302) and the lower bottom surface of the sealed bellows (303) are coaxially fixedly connected. The sealed bellows (303) is coaxially arranged in the limiting cylinder (313). The upper surface of (303) is coaxially fixedly connected with a cover plate (315), the lower end of the cover plate (315) is coaxially fixedly connected with the top end of the limiting cylinder (313), the top end of the sealed bellows (303) is fixedly connected with a three-way pipe (305), the three-way pipe (305) is fixedly connected with two ventilation pipes (306), the ends of the two ventilation pipes (306) are mutually connected with the inner cavity of the annular airbag (307), and the two sides of the cylinder (311) are provided with through holes (312) for passing the ventilation pipes (306).

3. The sealing detection device for producing blow-molded energy-saving air intake pipes for commercial vehicles according to claim 1 is characterized in that: Limiting rings (310) are coaxially fixedly mounted on both upper and lower ends of the cylinder (311), and the inner diameter of the limiting ring (310) is smaller than the inner diameter of the cylinder (311).

4. The sealing detection device for producing blow-molded energy-saving air intake pipes for commercial vehicles according to claim 1 is characterized in that: The inner ring of the annular airbag (307) is coaxially provided with two annular pressing grooves (308), and a support ring (309) is embedded and installed in the annular pressing groove (308).

5. The sealing detection device for producing blow-molded energy-saving air intake pipes for commercial vehicles according to claim 2 is characterized in that: A strip-shaped observation hole (314) is provided on one side of the limiting cylinder (313).

6. The sealing detection device for producing blow-molded energy-saving air intake pipes for commercial vehicles according to claim 2 is characterized in that: The top end of the sealed bellows (303) is fixedly connected to an air pressure detector (304).

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