CN212903759U

CN212903759U - Engine pipe fitting gas tightness detection device

Info

Publication number: CN212903759U
Application number: CN202120071171.9U
Authority: CN
Inventors: 毛威; 许英家; 刘红; 黄超
Original assignee: Ningbo Gonghao Metal Manufacturing Co ltd
Current assignee: Ningbo Gonghao Metal Manufacturing Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-04-06
Anticipated expiration: 2031-01-12

Abstract

The utility model discloses an engine pipe fitting air tightness detection device, which comprises an operation platform (1), wherein at least one group of air tightness detection mechanisms are arranged on the operation platform (1); the air tightness detection mechanism comprises two pipe fitting end part positioners, an inflation assembly, an air blocking assembly and a pipe fitting bracket (14); the two pipe fitting end part positioners are respectively used for positioning two end parts of the engine pipe fitting to be tested; the inflation assembly inflates one end of the engine pipe fitting, and the air blocking assembly is used for blocking the other end of the engine pipe fitting; the pipe fitting support (14) is used for supporting on a pipe body of the engine pipe fitting. The air tightness detection device is small in workload, convenient to operate, high in detection efficiency and good in detection effect.

Description

Engine pipe fitting gas tightness detection device

Technical Field

The utility model relates to an automobile engine accessory makes technical field, more precisely relates to an engine pipe fitting gas tightness detection device.

Background

The good or bad leakproofness of parts such as oil pipe, breather pipe, water-cooling pipe of automobile engine plays decisive effect to engine work. The product is required to have the leakage quantity of less than 2cm2/min in the sealing property because of working in extremely severe environments (cold and hot and high vibration), the leakage caused by poor welding can not occur, and the leakage caused by expansion with heat and contraction with cold of the product due to high vibration or high heat and the like can not occur. In the prior art, a worker uses a rubber pipe to connect two ends of a pipe fitting, the pipe fitting is placed into water, the leakage condition is observed, and the pipe fitting is judged to be an unqualified product when bubbles emerge. The detection method has the advantages of large workload, troublesome operation, low detection efficiency and unsatisfactory detection effect.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an engine pipe fitting gas tightness detection device, lid gas tightness detection device work load is less, and it is more convenient to operate, and detection efficiency is high and detection effect is better.

The technical scheme of the utility model is that an engine pipe fitting air tightness detection device with the following structure is provided, which comprises an operation platform, wherein at least one group of air tightness detection mechanisms are arranged on the operation platform; the air tightness detection mechanism comprises two pipe fitting end part positioners, an inflation assembly, an air blocking assembly and a pipe fitting bracket; the two pipe fitting end part positioners are respectively used for positioning two end parts of the engine pipe fitting to be tested; the inflation assembly inflates one end of the engine pipe fitting, and the air blocking assembly is used for blocking the other end of the engine pipe fitting; the pipe fitting support is used for supporting the pipe body of the engine pipe fitting.

After the structure above adopting, the utility model discloses an engine pipe fitting gas tightness detection device compares with prior art, has following advantage:

because the utility model discloses an engine pipe fitting gas tightness detection device includes two pipe fitting end locator, inflation assembly, stifled gas subassembly and pipe fitting support, during the use, two pipe fitting end locator are fixed a position respectively to the both ends of being surveyed the engine pipe fitting, and inflation assembly plugs up the one end of being surveyed the engine pipe fitting and can aerify to being surveyed the engine pipe fitting is inside, and the other end of being surveyed the engine pipe fitting is plugged up to stifled gas subassembly, avoids this end gas leakage. Then arrange this detection device in aqueous, whether have the bubble to produce through observing the aquatic and judge whether the engine pipe fitting that is surveyed produces gas leakage, simple structure can reduce work load greatly, and the operation is also very convenient, and detection efficiency is high and detection effect is good.

As an improvement, the pipe fitting end positioner comprises a positioning seat, a pressing block and a pressing block driver, wherein the positioning seat is provided with a positioning groove for embedding the end of the tested engine pipe fitting, the pressing block is pressed on the positioning seat and presses an opening of the positioning groove, and the pressing block driver is used for driving the pressing block to open or press the opening of the positioning groove. After adopting this kind of structure, during the use, with the tip embedding of being surveyed engine pipe fitting in the constant head tank, then drive through the compact heap driver makes the compact heap push down the opening of constant head tank, will be surveyed the tip of engine pipe fitting and fix a position.

As an improvement, the pressing block comprises a connecting piece and a pressing block, and one end of the pressing block is connected to one end of the connecting piece. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, the other end of the connecting piece is hinged to the driving end of the pressing block driver, a hinge seat is arranged on the pressing block driver, a hinge block is arranged between the hinge seat and the middle part of the connecting piece, one end of the hinge block is hinged to the middle part of the connecting piece, and the other end of the hinge block is hinged to the hinge seat. After the structure is adopted, the pressing block can be rotated by the driving of the pressing block driver, so that the pressing block opens or presses the opening of the positioning groove.

As an improvement, the driving end of the pressing block driver is provided with a hinged joint, and the other end of the connecting piece is hinged with the end part of the hinged joint. After adopting this kind of structure, simple structure, the equipment is more convenient.

As an improvement, the inflation assembly comprises a first driver, an inflation plug and an air source; the inflation plug is connected to the driving end of the first driver, an airflow channel is arranged in the inflation plug, and the air source is connected with the airflow channel of the inflation plug; the outlet of the airflow channel of the inflation plug is aligned with the positioning groove of the corresponding pipe fitting end positioner. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, the air blocking assembly comprises a second driver and a plug, the plug is connected to the driving end of the second driver, and the plug is aligned with the positioning groove of the corresponding pipe end positioner. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, the upper end surface of the pipe fitting bracket is provided with a supporting groove matched with the shape of the outer wall of the pipe fitting. After adopting this kind of structure, simple structure, convenient to use.

Drawings

Fig. 1 is the utility model discloses an engine pipe fitting gas tightness detection device's spatial structure sketch map.

Fig. 2 is the utility model discloses an engine pipe fitting gas tightness detection device's gas tightness detection mechanism's spatial structure sketch map.

Fig. 3 is the utility model discloses a three-dimensional structure schematic diagram of engine pipe fitting gas tightness detection device's pipe fitting tip locator.

Fig. 4 is the perspective view of the pipe end positioner of the engine pipe airtightness detection apparatus according to the present invention at another angle.

Fig. 5 is the utility model discloses an explosion structure schematic diagram of engine pipe fitting gas tightness detection device's pipe fitting tip locator.

Shown in the figure: 1. an operation platform, 2, a positioning seat, 201, a protrusion, 202, a positioning groove, 3, a pressing block, 301, a connecting block, 302, a pressing block, 303, a limiting step, 304, a matching step, 305, a pressing head, 306, a second hinge groove, 307, a fourth hinge hole, 308, a fifth hinge hole, 309, a sixth hinge hole, 310, a seventh hinge hole, 4, a pressing block driver, 401, a connecting groove, 5, a hinge joint, 501, a connecting column, 502, a first hinge hole, 6, a hinge base, 601, a first hinge groove, 602, a second hinge hole, 603, a third hinge hole, 7, a hinge block, 701, an eighth hinge hole, 702, a ninth hinge hole, 8, a first driver, 9, an inflation plug, 901, an airflow channel, 902, a first boss, 10, a first mounting rack, 11, a second driver, 12, a plug, 1201, a second boss, 13, a second mounting rack, 14, a pipe support, 1401. and a support groove.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," and/or "containing," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

As shown in fig. 1 to 5, the embodiment discloses an engine pipe airtightness detection apparatus including an operation platform 1, where the operation platform 1 is provided with at least one group of airtightness detection mechanisms, and in the embodiment, there are three groups of airtightness detection mechanisms, and the three groups of airtightness detection mechanisms are arranged along a length direction of the operation platform 1.

The air tightness detection mechanism comprises two pipe fitting end part positioners, an inflation assembly, an air blocking assembly and a pipe fitting support 14. The two pipe fitting end part positioners are respectively used for positioning two end parts of the engine pipe fitting to be tested; the inflation assembly inflates one end of the engine pipe fitting, and the air blocking assembly is used for blocking the other end of the engine pipe fitting; the pipe support 14 is used for supporting the pipe body of the engine pipe.

The pipe fitting end positioner comprises a positioning seat 2, a pressing block 3 and a pressing block driver 4. The positioning seat 2 is fixedly arranged on the operating platform 1. The upper end of the positioning seat 2 is provided with a bulge 201, the upper end face of the bulge 201 is provided with a positioning groove 202, and the shape of the positioning groove 202 is matched with the shape of the outer wall of the tested engine pipe fitting. When in use, the end part of the tested engine pipe fitting is embedded into the positioning groove 202. Compact heap 3 include connecting block 301 and briquetting 302, the downside of the tip of connecting block 301 be equipped with spacing step 303, briquetting 302 be close to connecting block 301's tip be equipped with cooperation step 304, cooperation step 304 match be in spacing step 303 on, connecting block 301's tip with briquetting 302's tip pass through retaining member fixed connection. The end part of the pressing block 302 far away from the connecting block 301 is provided with a pressing head 305, the pressing head 305 is lapped above the positioning groove 202, and when the pressing head 305 of the pressing block 302 is used, the pressing head 305 presses the end part of the tested engine pipe fitting embedded in the positioning groove 202. The pressing block driver 4 is a first air cylinder. The tip of the piston of first cylinder be equipped with articulated joint 5, the tip of piston be equipped with spread groove 401, the lower extreme of articulated joint 5 be equipped with spliced pole 501, spliced pole 501 tight fit be in spread groove 401 in. The upper end of the joint 5 is provided with a first hinge hole 502. The first cylinder can drive the articulated joint 5 to move up and down. The shell of the first cylinder is fixedly connected to the operating platform 1. The cylinder shell is also fixedly connected with a hinged seat 6. The hinge base 6 is provided with a first hinge groove 601, and two sides of the first hinge groove 601 are respectively provided with a second hinge hole 602 and a third hinge hole 603. The end part, far away from the limiting step 303, of the connecting block 301 of the pressing block 3 is provided with a second hinge groove 306, and both sides of the second hinge groove 306 are respectively provided with a fourth hinge hole 307, a fifth hinge hole 308, a sixth hinge hole 309 and a seventh hinge hole 310. The fourth hinge hole 307 is aligned with the fifth hinge hole 308, and the sixth hinge hole 309 is aligned with the seventh hinge hole 310. The connecting block 301 with articulated seat 6 between be equipped with articulated piece 7, articulated piece 7 be waist shape, the both ends of articulated piece 7 be equipped with eighth hinge hole 701 and ninth hinge hole 702 respectively. The end of the joint 5 is hinged to the end of the connecting block 301 through a first connecting shaft, that is, the first connecting shaft passes through the first hinge hole 502 of the joint 5, and two ends of the first connecting shaft are hinged in the fourth hinge hole 307 and the fifth hinge hole 308, respectively. The two ends of the hinge block 7 are respectively hinged to the hinge seat 6 arranged in the middle of the connecting block 301 through a second connecting shaft and a third connecting shaft, that is, the second connecting shaft passes through an eighth hinge hole 701 at the lower end of the hinge block 7, and the two ends of the second connecting shaft are respectively hinged to the second hinge hole 602 and the third hinge hole 603. The third connecting shaft passes through a ninth hinge hole 702 at the upper end of the hinge block 7, and two ends of the third connecting shaft are respectively hinged in the sixth hinge hole 309 and the seventh hinge hole 310. When the piston of the first cylinder moves downwards, under the action of the connecting block 301, the hinge block 7 and other structures, the pressure head 305 of the pressure block 302 can be lifted upwards to open the positioning groove 202, and the limit on the end part of the tested engine pipe fitting is released. Conversely, when the piston of the first cylinder moves upwards, the pressing head 305 of the pressing block 302 covers the positioning groove 202 again.

The inflation assembly comprises a first driver 8, an inflation plug 9 and an air source. The first driver 8 is a second cylinder, and the inflation plug 9 is connected to the end of a piston of the second cylinder. The second cylinder pass through first mounting bracket 10 fixed connection operation platform 1 on and first mounting bracket 10 with positioning seat 2 fixed connection. The end of the piston rod of the second cylinder faces the positioning groove 202 of the positioning seat 2. An airflow channel 901 is arranged in the inflation plug 9, the air source is communicated with the airflow channel 901, and an outlet of the airflow channel 901 of the inflation plug 9 is aligned with the positioning groove 202 of the corresponding pipe end positioner. The inflation plug 9 is made of rubber materials. The end part of the inflation plug 9 close to the pipe end positioner is provided with a first boss 902, and the outlet of the airflow channel 901 is arranged in the middle of the first boss 902. When the automobile engine pipe fitting end part inflation plug 9 is used, the inflation plug is pushed by the piston of the first cylinder to plug the port, fixed in the positioning groove 202 of the pipe fitting end part positioner, of the end part of the automobile engine pipe fitting to be tested. The air source can charge air into the automobile engine pipe fitting to be tested through the air flow channel 901.

The air blocking assembly comprises a second driver 11 and a plug 12. The second driver 11 is a third cylinder, and the plug 12 is fixedly connected to an end of a piston of the third cylinder. The third cylinder pass through second mounting bracket 13 fixed connection operation platform 1 on and second mounting bracket 13 and corresponding positioning seat 2 fixed connection. The end of the piston rod of the third cylinder faces the positioning slot 202 of the corresponding positioning seat 2.

And a second boss 1201 is arranged on one side of the plug 12 close to the corresponding pipe fitting end positioner. The plug 12 is also made of rubber material. When the plug 12 is used, the plug is pushed by the piston of the third cylinder to block the end opening of the end part of the automobile engine pipe fitting to be tested, which is fixed in the positioning groove 202 of the pipe fitting end positioner.

The upper end surface of the pipe bracket 14 is provided with a supporting groove 1401 which is matched with the shape of the outer wall of the pipe. When in use, the pipe body of the tested automobile engine pipe fitting is embedded in the supporting groove 1401.

The utility model discloses an engine pipe fitting gas tightness detection device can install in the basin during use, at basin lower part water injection, the mountable of basin bottom has cylinder or other elevating gear. This gas tightness detection device's operation platform 1 fixed connection is at cylinder or elevating gear's drive end. During detection, the detected automobile engine pipe fittings can be arranged on each group of air tightness detection mechanisms of the detection device, and then the air sources of each group of air tightness detection mechanisms are started, so that each detected automobile engine pipe fitting is inflated. Then the air tightness detection device is immersed in water in the water tank, each automobile engine pipe to be detected cannot leak air, and if the air leakage phenomenon occurs, the automobile engine pipe to be detected has the defect of air leakage and needs to be reworked or scrapped.

Claims

1. The utility model provides an engine pipe fitting gas tightness detection device which characterized in that: the air tightness detection device comprises an operation platform (1), wherein at least one group of air tightness detection mechanisms are arranged on the operation platform (1); the air tightness detection mechanism comprises two pipe fitting end part positioners, an inflation assembly, an air blocking assembly and a pipe fitting bracket (14); the two pipe fitting end part positioners are respectively used for positioning two end parts of the engine pipe fitting to be tested; the inflation assembly inflates one end of the engine pipe fitting, and the air blocking assembly is used for blocking the other end of the engine pipe fitting; the pipe fitting support (14) is used for supporting on a pipe body of the engine pipe fitting.

2. The engine pipe airtightness detection apparatus according to claim 1, wherein: the pipe fitting end positioner comprises a positioning seat (2), a pressing block (3) and a pressing block driver (4), wherein the positioning seat (2) is provided with a positioning groove (202) used for embedding the end part of the tested engine pipe fitting, the pressing block (3) is pressed on the positioning seat (2), the pressing block (3) presses an opening of the positioning groove (202), and the pressing block (3) driver is used for driving the pressing block (3) to open or press the opening of the positioning groove (202).

3. The engine pipe airtightness detection apparatus according to claim 2, wherein: the pressing block (3) comprises a connecting piece (301) and a pressing block (302), and one end of the pressing block (302) is connected to one end of the connecting piece (301).

4. The engine pipe airtightness detection apparatus according to claim 3, wherein: the other end of connecting piece (301) articulate compact heap (3) the drive of driver on serve, compact heap (3) the driver on be equipped with articulated seat (6), articulated seat (6) with the middle part of connecting piece (301) between be equipped with articulated piece (7), the one end of articulated piece (7) articulate the middle part of connecting piece (301), the other end of articulated piece (7) articulate articulated seat (6) on.

5. The engine pipe airtightness detection apparatus according to claim 4, wherein: the driving end of the driver of the pressing block (3) is provided with a hinge joint (5), and the other end of the connecting piece (301) is hinged with the end part of the hinge joint (5).

6. The engine pipe airtightness detection apparatus according to claim 2, wherein: the inflation assembly comprises a first driver (8), an inflation plug (9) and an air source; the inflation plug (9) is connected to the driving end of the first driver (8), an airflow channel (901) is arranged in the inflation plug (9), and the air source is connected with the airflow channel (901) of the inflation plug (9); the outlet of the airflow channel (901) of the inflation plug (9) is aligned with the positioning groove (202) of the corresponding pipe end positioner.

7. The engine pipe airtightness detection apparatus according to claim 2, wherein: the air blocking assembly comprises a second driver (11) and a plug (12), the plug (12) is connected to the driving end of the second driver (11), and the plug (12) is aligned with a positioning groove (202) of the corresponding pipe fitting end positioner.

8. The engine pipe airtightness detection apparatus according to claim 1, wherein: the upper end surface of the pipe fitting bracket (14) is provided with a supporting groove (1401) matched with the shape of the outer wall of the pipe fitting.