CN216116619U

CN216116619U - Detection tool for air tightness of oil cylinder shell

Info

Publication number: CN216116619U
Application number: CN202122331956.8U
Authority: CN
Inventors: 郑友富
Original assignee: Anhui Juyuan Xinrui Precision Machinery Co ltd
Current assignee: Anhui Juyuan Xinrui Precision Machinery Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-03-22
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a detection tool for detecting the air tightness of an oil cylinder shell, which comprises a lower shell and an upper shell, wherein an extrusion groove is formed in the bottom of the inner wall of the lower shell. When examining the casing that awaits measuring, the accessible moves down the casing that awaits measuring and drives the promotion piece and move down, cooperation through movable rod and pinch bar is used, the iodine solution in the liquid storage groove is spouted after the surface of the casing that awaits measuring through spouting the liquid nozzle, the pressurization is aerifyd to the inside of the casing that awaits measuring through the breather pipe, when the casing that awaits measuring has the leakage, through the cooperation of gasbag and the through-hole on storage chamber surface and use, thereby starch in the storage chamber scatters out, attach on the surface of the casing that awaits measuring, take place the color development reaction after making starch and iodine solution contact, the surface of the casing that lets await measuring becomes blue, and the leakage department of the casing that awaits measuring leads to leading to starch unable attached to the surface at the leakage point because of the influence of gas flow, the leakage point department is brown, the position of the leakage point of observation that can relax.

Description

Detection tool for air tightness of oil cylinder shell

Technical Field

The utility model relates to the technical field of oil cylinder shell detection, in particular to an oil cylinder shell air tightness detection gauge.

Background

The hydraulic cylinder on the market is difficult to control even cooling speed at the shaping in-process, the influence of impurity in the alloy, many-sided reasons such as mould and equipment can lead to the foundry goods inside to contain gas and produce defects such as gas pocket, shrinkage cavity, tissue porosity, the existence of this defect will lead to sealed medium seepage, increases the wearing and tearing of machining cutter, brings manufacturing cost's increase simultaneously, makes the assurance that product quality is difficult to, needs to detect to hydraulic cylinder's leakproofness.

However, the detection of the tightness of the hydraulic oil cylinder in the current market has certain defects, the hydraulic oil cylinder is generally placed in a water tank to observe whether bubbles generate detection air tightness in the test process, the mode has certain potential safety hazards, misjudgment and missing judgment are easy to occur, leakage points are not marked well, and certain operational inconvenience exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a detection tool for detecting air tightness of an oil cylinder shell, which aims to solve the problems in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an utensil is examined in cylinder housing air tightness detection, includes casing and last casing down, the extrusion groove has been seted up to shells inner wall's bottom down, movable mounting has control mechanism between inside and the extrusion groove down, the top of going up the casing is movable about through and is installed the breather pipe, the bottom both sides fixed surface of breather pipe installs the hydraulic stem, the output fixed mounting of hydraulic stem has the piece of supporting tight, two the common joint in surface of the piece of supporting tight has the casing that awaits measuring, the casing inner wall fixed mounting that awaits measuring outside is equipped with marking mechanism down.

Preferably, control mechanism includes the spout, promotes piece, spring one, movable rod, spring two, deposits cistern, squeeze bar and hydrojet mouth, two sets of spouts have been laid about the lower casing inner wall between casing and the squeeze groove of awaiting measuring, common slidable mounting has the promotion piece between the spout, and the bottom that promotes the piece extends to inside the squeeze groove, install spring one jointly between the bottom that promotes the piece and the squeeze groove inner wall bottom, the both sides surface all movable mounting that promotes the piece has the movable rod, the spring two of installation between the inner wall top of movable rod and squeeze groove, the lower casing inner wall left and right sides of marking mechanism below all is provided with deposits the cistern, and the terminal all movable mounting of two movable rods has the squeeze bar, and the squeeze bar extends to inside depositing the cistern, the inboard fixed surface who deposits the cistern installs hydrojet mouth.

Preferably, the marking mechanism comprises a storage cavity and an air bag, the storage cavity is formed in the inner wall of the lower shell outside the shell to be detected, and the air bag is fixedly mounted on the outer side of the storage cavity.

Preferably, the contact position of the outer side of the abutting block and the inner wall of the shell to be tested is provided with anti-skid grains.

Preferably, a rotating shaft is arranged at the joint between the pushing block and the two movable rods, and iodine solution is filled in the inner wall of the liquid storage tank.

Preferably, a movable groove is formed in the lower shell at the position corresponding to the movable position of the extrusion rod, and a piston plate is fixedly mounted at the top end of the extrusion rod.

Preferably, starch is filled in the storage cavity, and a through hole is formed in the bottom of the storage cavity and the corresponding position of the inner wall of the lower shell.

Compared with the prior art, the utility model has the beneficial effects that:

1. the oil cylinder shell air tightness detection gauge can drive the pushing block to move downwards by moving the shell to be detected downwards when detecting the shell to be detected, after the iodine solution in the solution storage tank is sprayed on the surface of the shell to be measured through the liquid spraying nozzle by the matching use of the movable rod and the extrusion rod, the interior of the shell to be tested is inflated and pressurized through the vent pipe, when the shell to be tested has leakage, the air bag is matched with the through hole on the surface of the storage cavity for use, thereby dispersing the starch in the storage cavity and attaching the starch on the surface of the shell to be tested, leading the starch to be in color reaction after being contacted with the iodine solution and leading the surface of the shell to be tested to be blue, and the leakage position of the shell to be detected is brown, so that the position of the leakage point can be easily observed, and the oil cylinder shell can be conveniently treated.

2. This utensil is examined in hydro-cylinder casing gas tightness detects will support tight piece card at the inner wall of the casing that awaits measuring through the extension of hydraulic stem, will go up the casing and laminate mutually with the top of the casing that awaits measuring, prevent gas leakage, later with going up the casing and being in the same place with lower casing is fixed, the hydro-cylinder of adaptable not unidimensional of this mode to in fixed the detection to it.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged schematic view of FIG. 1 at A according to the present invention;

fig. 3 is a schematic view of the operation state of the pushing block of the present invention.

In the figure: 1. a lower housing; 2. an upper housing; 3. extruding a groove; 4. a breather pipe; 5. a hydraulic lever; 6. a propping block; 7. a shell to be tested; 8. a chute; 9. a pushing block; 10. a first spring; 11. a movable rod; 12. a second spring; 13. a liquid storage tank; 14. an extrusion stem; 15. a liquid spray nozzle; 16. a storage chamber; 17. an air bag.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, the cylinder housing air tightness detection tool of the present embodiment includes a lower housing 1 and an upper housing 2, the lower housing 1 is a hollow metal box, the interior of the lower housing is used for installing a control mechanism and a marking mechanism, the bottom of the inner wall of the lower housing 1 is provided with an extrusion groove 3, the extrusion groove 3 can be used for the movement of a pushing block 9, the control mechanism is movably installed between the interior of the lower housing 1 and the extrusion groove 3, the top end of the upper housing 2 is vertically movably installed with a vent pipe 4, the vent pipe 4 can be used for inflating and pressurizing a housing 7 to be detected, by this way, whether the housing 7 to be detected has leakage or not can be detected, the hydraulic rods 5 are fixedly installed on the surfaces of the two sides of the bottom of the vent pipe 4, the hydraulic rods 5 can be used for extension and retraction, and can be used in cooperation with the abutting blocks 6 to fix the inner walls of the housings 7 to be detected with different sizes, the abutting blocks 6 are fixedly installed at the output end of the hydraulic rods 5, the common joint in surface of two tight blocks 6 has the casing 7 that awaits measuring, and the lower 1 inner walls of casing outside the casing 7 that awaits measuring fixed mounting have the marking mechanism.

Specifically, the control mechanism comprises a chute 8, a pushing block 9, a first spring 10, a movable rod 11, a second spring 12, a liquid storage tank 13, an extrusion rod 14 and a liquid spraying nozzle 15, two sets of chutes 8 are distributed on the left and right sides of the inner wall of the lower shell 1 between the shell 7 to be tested and the extrusion tank 3, the chutes 8 can be used for facilitating the movement of the pushing block 9, the pushing block 9 is mounted between the chutes 8 in a sliding manner, the bottom end of the pushing block 9 extends into the extrusion tank 3, the first spring 10 is mounted between the bottom end of the pushing block 9 and the bottom end of the inner wall of the extrusion tank 3, the first spring 10 can be used for supporting the pushing block 9, the movable rods 11 are movably mounted on the surfaces of two sides of the pushing block 9, the second spring 12 mounted between the movable rod 11 and the top end of the inner wall of the extrusion tank 3, the second spring 12 can be used for drawing the movable rod 11, the liquid storage tanks 13 are arranged on the left and right sides of the inner wall of the lower shell 1 below the marking mechanism, the ends of the two movable rods 11 are movably provided with an extrusion rod 14, the extrusion rod 14 extends into the liquid storage tank 13, the inner side surface of the liquid storage tank 13 is fixedly provided with a liquid spray nozzle 15, and the liquid spray nozzle 15 can be used for atomizing and spraying liquid.

Further, marking mechanism includes storage chamber 16 and gasbag 17, and storage chamber 16 has been seted up to the lower casing 1 inner wall in the casing 7 outside that awaits measuring, and storage chamber 16's outside fixed mounting has gasbag 17, and gasbag 17 can produce deformation when receiving external pressure.

Furthermore, the contact part between the outer side of the abutting block 6 and the inner wall of the shell 7 to be tested is provided with anti-slip lines, and the design of the anti-slip lines can be used for improving the friction force between the abutting block 6 and the shell 7 to be tested.

Furthermore, a rotating shaft is arranged at the joint between the pushing block 9 and the two movable rods 11, and iodine solution is filled in the inner wall of the liquid storage tank 13.

Furthermore, a movable groove is formed in the lower shell 1 corresponding to the movable position of the extrusion rod 14, a piston plate is fixedly mounted at the top end of the extrusion rod 14, and the piston plate can be used for extruding the iodine solution in the solution storage groove 13.

Furthermore, the storage cavity 16 is filled with starch, a through hole is formed in the bottom of the storage cavity 16 and the corresponding position of the inner wall of the lower shell 1, and the starch can be used for being in contact with iodine liquid and changing into blue through a color development reaction.

The using method of the embodiment comprises the following steps: after the detection tool for detecting the air tightness of the oil cylinder shell is installed, when a shell 7 to be detected is detected, the abutting block 6 can be clamped on the inner wall of the shell 7 to be detected through the extension of the hydraulic rod 5, the upper shell 2 is attached to the top of the shell 7 to be detected, the air leakage is prevented, then the upper shell 2 and the lower shell 1 are fixed together, the shell 7 to be detected moves downwards to drive the pushing block 9 to move downwards, at the moment, one end of the movable rod 11, far away from the pushing block 9, under the traction of the spring II 12 moves upwards to drive the extruding rod 14 to move upwards, iodine solution in the solution storage tank 13 is sprayed on the surface of the shell 7 to be detected through the solution spraying nozzle 15, then the interior of the shell 7 to be detected is inflated and pressurized through the vent pipe 4, when the shell 7 to be detected leaks, the air leakage can generate pressure on the air bag 17 in the lower shell 1, so that starch in the storage chamber 16 is scattered through a through hole in the surface of the storage chamber 16, attached at the surface of casing 7 that awaits measuring, take place the color reaction after starch and iodine liquid contact and the surface of casing 7 that awaits measuring can become blue, and the influence that the gas flow led to the fact starch to be attached at the surface of leak point at the leak point of casing 7 that awaits measuring, and the leak point is brown, can be light observe the position of leak point to handle the hydro-cylinder casing.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a cylinder housing gas tightness detects examines utensil, includes casing (1) and last casing (2) down, its characterized in that: extrusion groove (3) have been seted up to the bottom of casing (1) inner wall down, movable mounting has control mechanism between casing (1) inside and extrusion groove (3) down, movable through installs breather pipe (4) about going up the top of casing (2), the bottom both sides fixed surface of breather pipe (4) installs hydraulic stem (5), the output fixed mounting of hydraulic stem (5) has the tight piece (6), two the common joint in surface of tight piece (6) has casing (7) that awaits measuring, casing (1) inner wall fixed mounting in the casing (7) outside of awaiting measuring has marking mechanism.

2. The cylinder housing air-tightness detection tool according to claim 1, characterized in that: the control mechanism comprises sliding grooves (8), pushing blocks (9), a first spring (10), a movable rod (11), a second spring (12), a liquid storage groove (13), an extrusion rod (14) and a liquid spraying nozzle (15), wherein two groups of sliding grooves (8) are distributed on the left and right sides of the inner wall of a lower shell (1) between a shell (7) to be tested and an extrusion groove (3), the pushing blocks (9) are installed between the sliding grooves (8) in a sliding mode, the bottom ends of the pushing blocks (9) extend into the extrusion groove (3), the first spring (10) is installed between the bottom ends of the pushing blocks (9) and the inner wall bottom end of the extrusion groove (3) together, the movable rods (11) are movably installed on the surfaces of the two sides of the pushing blocks (9), the second spring (12) installed between the movable rods (11) and the top end of the inner wall of the extrusion groove (3), the liquid storage grooves (13) are arranged on the left and right sides of the inner wall of the lower shell (1) below the marking mechanism, the tail ends of the two movable rods (11) are movably provided with extrusion rods (14), the extrusion rods (14) extend into the liquid storage tank (13), and the inner side surface of the liquid storage tank (13) is fixedly provided with a liquid spraying nozzle (15).

3. The cylinder housing air-tightness detection tool according to claim 1, characterized in that: the marking mechanism comprises a storage cavity (16) and an air bag (17), the storage cavity (16) is formed in the inner wall of the lower shell (1) on the outer side of the shell (7) to be detected, and the air bag (17) is fixedly mounted on the outer side of the storage cavity (16).

4. The cylinder housing air-tightness detection tool according to claim 1, characterized in that: and anti-skid grains are arranged at the contact part of the outer side of the abutting block (6) and the inner wall of the shell (7) to be detected.

5. The cylinder housing air-tightness detection tool according to claim 2, characterized in that: a rotating shaft is arranged at the joint between the pushing block (9) and the two movable rods (11), and iodine solution is filled in the inner wall of the liquid storage tank (13).

6. The cylinder housing air-tightness detection tool according to claim 2, characterized in that: the movable part of the lower shell (1) corresponding to the extrusion rod (14) is provided with a movable groove, and the top end of the extrusion rod (14) is fixedly provided with a piston plate.

7. The oil cylinder shell air tightness detection tool according to claim 3, characterized in that: starch is filled in the storage cavity (16), and a through hole is formed in the bottom of the storage cavity (16) and the corresponding position of the inner wall of the lower shell (1).