CN215573612U - Airtight test device for ultrathin-wall steel pipe - Google Patents

Abstract

The utility model discloses an air tightness test device for an ultrathin-wall steel pipe, which comprises a box body and a motor, wherein the motor is fixedly connected to the right side inside the box body through a support, first gears are fixedly connected with the output end of the motor, the two first gears are meshed and connected with each other, a worm is fixedly connected to the center of the upper first gear through a rotating shaft, the upper part of a brush is connected with a groove plate in a sliding mode through the rotating shaft, and the top of the groove plate is fixedly connected with the box body. This ultra-thin wall steel pipe air tightness test device, through the motor, the water tank, first gear, brush the cooperation between liquid device and the transmission, the motor drives first gear revolve, the below of brush is stained with the soapy water that holds in the water tank to brush the soapy water on the steel pipe through removing, the user has the local proof of gassing here whether to leak gas through observing the steel pipe, has solved the problem that the unable exact inspection of ultra-thin wall steel pipe air tightness test device goes out the concrete position of gas leakage.

Description

Airtight test device for ultrathin-wall steel pipe

Technical Field

The utility model relates to the technical field of steel pipe air tightness tests, in particular to an air tightness test device for an ultrathin-wall steel pipe.

Background

The steel pipe after finishing needs to be subjected to an air tightness test, generally, the air tightness test is to fix one end of a sealed steel pipe filled with compressed air, connect one end of the sealed steel pipe with a pressure valve, and determine whether the steel pipe leaks air or not by observing the air pressure change of the pressure valve.

Disclosure of Invention

The utility model aims to provide an air tightness test device for an ultrathin-wall steel pipe, which solves the problem that the specific position of air leakage cannot be checked accurately in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: an air tightness test device for an ultrathin-wall steel pipe comprises a box body and a motor, wherein the motor is fixedly connected to the right side inside the box body through a support, and a liquid brushing device is arranged at the output end of the motor;

the liquid brushing device comprises a first gear, a worm wheel, an incomplete gear, a second gear, a connecting rod, a groove plate and a brush;

first gear is fixed with the output end of motor and links to each other, two first gear intermeshing links to each other, the top the center of first gear has the worm through the pivot rigid coupling, the both sides of worm all mesh and are connected with the worm wheel, the both ends of worm are passed through the bearing and are rotated with the box and be connected, two the center of worm wheel is through pivot and incomplete gear looks rigid coupling, the edge mesh of incomplete gear is connected with same second gear, the center of second gear has the connecting rod through the pivot rigid coupling, the inner wall of connecting rod passes through spout and brush sliding connection, the top of brush is through pivot and frid sliding connection, the top and the box of frid are fixed and link to each other.

Preferably, a transmission device is arranged at the center of the first gear below the first gear;

the transmission device comprises a cam with a pin, a wheel groove, a third gear, a fourth gear and a transverse plate;

the cam with the pin is fixedly connected with a first gear below through a rotating shaft, a cylindrical pin end of the cam with the pin is connected with a wheel groove in a sliding mode, a third gear is fixedly connected to the center of the wheel groove through the rotating shaft, a fourth gear is meshed with the edge of the third gear, one end of the third gear is rotatably connected with the box body through the rotating shaft, one end of the fourth gear is fixedly connected with the transverse plate through the rotating shaft, and the other end of the fourth gear is rotatably connected with the box body through the rotating shaft.

Preferably, one end of the transverse plate is provided with a clamping device;

the clamping device comprises a hand wheel, a screw rod, a first nut, a supporting frame, a second nut, a clamping claw and a sucker;

the one end of support frame is passed through the pillar and is fixed continuous with the diaphragm, the right side center of support frame is passed through the bearing and is connected with the screw rod rotation, the one end rigid coupling of screw rod has the hand wheel, the outer wall of screw rod links to each other with first nut and second nut screw thread respectively, the outer wall of first nut passes through hole and three gripper jaw swing joint, and is three the one end of gripper jaw is through round pin axle and support frame swing joint, and is three the other end rigid coupling of gripper jaw has the sucking disc.

Preferably, the outer wall of the box body is movably connected with a box door through a door leaf, and the bottom of the brush is provided with a water tank.

Preferably, one end of the second nut is provided with a rubber cushion.

Compared with the prior art, the utility model has the beneficial effects that: this ultra-thin wall steel pipe airtight test device compares in traditional technology, has following advantage:

through the matching among the motor, the water tank, the first gear, the liquid brushing device and the transmission device, the motor drives the first gear to rotate, the first gear drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the incomplete gear to rotate, the incomplete gear above drives the second gear to rotate anticlockwise, the second gear drives the brush to move upwards and rightwards along the chute on the groove plate through the connecting rod, the soapy water contained in the water tank is adhered below the brush, and the soapy water is brushed on the steel pipe through moving, after the upper incomplete gear rotates for half a circle, the upper incomplete gear is separated from the second gear, the lower incomplete gear enables the second gear to rotate clockwise, the second gear enables the brush to move leftwards and downwards firstly, the brush returns to the water tank to finish the movement again, a user can prove whether the air leaks from the position through observing the steel pipe whether bubbles are generated, and the problem that the air tightness test device of the ultra-thin wall steel pipe cannot exactly check the specific position of the air leakage is solved.

Meanwhile, the motor drives the cam with the pin to rotate through the first gear below, the cam with the pin drives the wheel groove to do intermittent motion, the cam with the pin rotates for one circle every time, the wheel groove rotates for one third of a circle, the wheel groove drives the third gear to rotate, the third gear rotates for two and a half circles, the fourth gear rotates for one circle, the fourth gear drives the transverse plate to rotate, the transverse plate drives the steel pipe to rotate through the supporting frame, the steel pipe also rotates when the brush brushes the soapy water, the even brush of the soapy water can be made on the steel pipe, the steel pipe can stop for a while every third of the steel pipe rotates in the wheel groove, a user can observe the situation of the soapy water, and the problem that the air tightness test device of the ultrathin-wall steel pipe is not uniformly smeared is solved.

Through the hand wheel, the screw rod and the first nut, the support frame, the second nut, the cooperation between gripper jaw and the sucking disc, the user twists the hand wheel, the hand wheel drives the screw rod and rotates, the screw rod makes first nut remove to the right, the screw rod makes the second nut remove to the left, the second nut drives the rubber cushion and closely laminates in the one end port of steel pipe, first nut drives the gripper jaw and rotates along the round pin axle on the support frame, the gripper jaw makes the sucking disc closely laminate on the steel pipe, fix steel pipe user and twist the hand wheel, the hand wheel drives the screw rod and rotates, the screw rod makes first nut remove to the right, the screw rod makes the second nut remove to the left, the second nut drives the rubber cushion and closely laminates in the one end port of steel pipe, first nut drives the gripper jaw and rotates along the round pin axle on the support frame, the gripper jaw makes the sucking disc closely laminate on the steel pipe, fix the steel pipe, the problem that degree of mechanization is low when having solved sealed port.

Drawings

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

FIG. 2 is a schematic front plan view of the structure of the present invention;

FIG. 3 is a schematic view of the connection structure of the worm, the worm wheel and the incomplete gear in FIG. 2;

FIG. 4 is a schematic view of the pin cam, race and third gear connection of FIG. 2.

FIG. 5 is a schematic view of the connection structure of the screw, the first nut and the second nut in FIG. 2

In the figure: 1. the device comprises a box body, 2, a motor, 3, a liquid brushing device, 301, a first gear, 302, a worm, 303, a worm wheel, 304, an incomplete gear, 305, a second gear, 306, a connecting rod, 307, a groove plate, 308, a brush, 4, a transmission device, 401, a cam with a pin, 402, a wheel groove, 403, a third gear, 404, a fourth gear, 405, a transverse plate, 5, a clamping device, 501, a hand wheel, 502, a screw rod, 503, a first nut, 504, a supporting frame, 505, a second nut, 506, a clamping claw, 507, a sucker, 6, a water tank, 7 and a box door.

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.

Referring to fig. 1-5, the present invention provides a technical solution: an air tightness test device for an ultrathin-wall steel pipe comprises a box body 1 and a motor 2, wherein the motor 2 is fixedly connected to the right side inside the box body 1 through a support, the model of the motor 2 is SC-QR, a liquid brushing device 3 is arranged at the output end of the motor 2, the liquid brushing device 3 comprises a first gear 301, a worm 302, a worm wheel 303, an incomplete gear 304, a second gear 305, a connecting rod 306, a groove plate 307 and a brush 308, the first gear 301 is fixedly connected with the output end of the motor 2, the motor 2 drives the first gear 301 below to rotate, the two first gears 301 are meshed with each other, the first gear 301 below drives the first gear 301 above to rotate, the worm 302 is fixedly connected to the center of the first gear 301 above through a rotating shaft, the first gear 301 drives the worm 302 to rotate, the worm wheel 303 is meshed with the two sides of the worm 302, the worm 302 drives the worm wheel 303 to rotate, the two ends of the worm 302 are rotatably connected with the box body 1 through bearings, the worm 302 is rotatably supported by the box body 1 through a bearing, the centers of the two worm wheels 303 are fixedly connected with the incomplete gear 304 through a rotating shaft, the worm wheels 303 drive the gear 304 to rotate, the edge of the incomplete gear 304 is connected with the same second gear 305 in a meshed mode, the gear 304 drives the second gear 305 to rotate, the center of the second gear 305 is fixedly connected with a connecting rod 306 through the rotating shaft, the second gear 305 drives the connecting rod 306 to rotate, the inner wall of the connecting rod 306 is slidably connected with the brush 308 through a sliding chute, the connecting rod 306 drives the brush 308 to move, the upper portion of the brush 308 is slidably connected with the groove plate 307 through the rotating shaft, the groove plate 307 limits the movement of the brush 308, and the top of the groove plate 307 is fixedly connected with the box body 1.

The center of the lower first gear 301 is provided with a transmission device 4, the transmission device 4 comprises a cam 401 with a pin, a wheel groove 402, a third gear 403, a fourth gear 404 and a transverse plate 405, the cam 401 with the pin is fixedly connected with the lower first gear 301 through a rotating shaft, the first gear 301 drives the cam 401 with the pin to rotate, the cylindrical pin end of the cam 401 with the pin is connected with the wheel groove 402 in a sliding way, the cam 401 with the pin drives the wheel groove 402 to rotate, the center of the wheel groove 402 is fixedly connected with the third gear 403 through the rotating shaft, the wheel groove 402 drives the third gear 403 to rotate, the edge of the third gear 403 is meshed and connected with the fourth gear 404, the transmission ratio of the third gear 403 to the fourth gear 404 is 1:2.5, one end of the third gear 403 is rotatably connected with the box body 1 through the rotating shaft, the box body 1 rotatably supports the third gear 403 through the rotating shaft, one end of the fourth gear 404 is fixedly connected with the transverse plate 405 through the rotating shaft, the fourth gear 404 drives the transverse plate 405 to rotate, the other end of the fourth gear 404 is rotatably connected to the case 1 through a rotating shaft, and the case 1 rotatably supports the fourth gear 404 through the rotating shaft.

One end of the transverse plate 405 is provided with a clamping device 5, the clamping device 5 comprises a hand wheel 501, a screw rod 502, a first nut 503, a support frame 504, a second nut 505, a clamping claw 506 and a suction cup 507, one end of the support frame 504 is fixedly connected with the transverse plate 405 through a pillar, the transverse plate 405 drives the support frame 504 to rotate, the right center of the support frame 504 is rotatably connected with the screw rod 502 through a bearing, the support frame 504 rotatably supports the screw rod 502 through the bearing, one end of the screw rod 502 is fixedly connected with the hand wheel 501, the hand wheel 501 drives the screw rod 502 to rotate, the outer wall of the screw rod 502 is respectively in threaded connection with the first nut 503 and the second nut 505, the screw rod 502 drives the first nut 503 to move rightwards, the screw rod 502 drives the second nut 505 to move leftwards, the outer wall of the first nut 503 is movably connected with the three clamping claws 506 through holes, the first nut 503 drives the clamping claws 506 to move, one end of the three clamping claws 506 is movably connected with the support frame 504 through a pin shaft, gripper jaw 506 rotates along the round pin axle of support frame 504, and the other end rigid coupling of three gripper jaw 506 has sucking disc 507, and gripper jaw 506 drives sucking disc 507 and removes, and there is chamber door 7 outer wall of box 1 through door leaf swing joint, and the bottom of brush 308 is provided with water tank 6, has held soapy water in the water tank 6, and the rubber cushion is installed to the one end of second nut 505, and the rubber cushion is used for sealed steel pipe.

When the ultra-thin wall steel pipe airtightness testing device is used, firstly, a user opens a box door 7, one end of a steel pipe is placed between three clamping claws 506, meanwhile, the user screws the hand wheel 501, the hand wheel 501 drives the screw rod 502 to rotate, the screw rod 502 drives the first nut 503 to move rightwards, the screw rod 502 drives the second nut 505 to move leftwards, the second nut 505 drives the rubber cushion to be tightly attached to one end port of the steel pipe, the first nut 503 drives the clamping claws 506 to rotate along a pin shaft on the supporting frame 504, the clamping claws 506 enable the suction cups 507 to be tightly attached to the steel pipe to fix the steel pipe, then, an external power supply of the motor 2 is switched on, the motor 2 is started, the output end of the motor 2 drives the two first gears 301 to rotate, the first gear 301 drives the worm 302 to rotate, the worm 302 drives the worm wheel 303 to rotate, the worm wheel 303 drives the incomplete gear 304 to rotate, and the incomplete gear 304 above enables the second gear 305 to rotate anticlockwise, the second gear 305 drives the brush 308 to move upwards and rightwards along the chute on the chute plate 307 through the connecting rod 306, soapy water contained in the water tank 6 is adhered below the brush 308, the soapy water is brushed on the steel pipe through movement, after the incomplete gear 304 on the upper part rotates for half a circle, the brush is separated from the second gear 305, the incomplete gear 304 on the lower part enables the second gear 305 to rotate clockwise, the brush 308 moves leftwards and downwards firstly through the second gear 305, the brush 308 returns to the water tank 6 to complete the movement again, meanwhile, the motor 2 drives the pin cam 401 to rotate through the first gear 301 on the lower part, the pin cam 401 drives the wheel groove 402 to do intermittent motion, each time the pin cam 401 rotates for one third circle, the wheel groove 402 drives the third gear 403 to rotate, the third gear 403 rotates for two and a half circles, the fourth gear 404 rotates for one circle, the fourth gear 404 drives the transverse plate 405 to rotate, the transverse plate 405 drives the steel pipe to rotate through the supporting frame 504, the steel pipe also rotates when the brush 308 brushes soapy water, the soapy water can be uniformly brushed on the steel pipe, meanwhile, the steel pipe stops for a while when the wheel groove 402 rotates for one third, a user can conveniently observe the condition of the soapy water, the air leakage is proved at the place where bubbles are emitted, and the steel pipe is taken out of the device after all inspection is finished.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", 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, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an ultra-thin wall steel pipe airtight test device, includes box (1) and motor (2), there are motor (2), its characterized in that on the inside right side of box (1) through the support rigid coupling: the output end of the motor (2) is provided with a liquid brushing device (3);

the liquid brushing device (3) comprises a first gear (301), a worm (302), a worm wheel (303), an incomplete gear (304), a second gear (305), a connecting rod (306), a groove plate (307) and a brush (308);

the first gears (301) are fixedly connected with the output end of the motor (2), the two first gears (301) are mutually meshed, the center of the first gear (301) above is fixedly connected with a worm (302) through a rotating shaft, both sides of the worm (302) are respectively connected with a worm wheel (303) in a meshing way, both ends of the worm (302) are rotatably connected with the box body (1) through bearings, the centers of the two worm wheels (303) are fixedly connected with the incomplete gear (304) through a rotating shaft, the edge of the incomplete gear (304) is engaged with the same second gear (305), the center of the second gear (305) is fixedly connected with a connecting rod (306) through a rotating shaft, the inner wall of the connecting rod (306) is connected with the brush (308) in a sliding way through a sliding groove, the upper part of the brush (308) is connected with the groove plate (307) in a sliding way through a rotating shaft, and the top of the groove plate (307) is fixedly connected with the box body (1).

2. The airtightness test apparatus for ultra-thin-wall steel pipes according to claim 1, wherein: a transmission device (4) is arranged at the center of the first gear (301) below;

the transmission device (4) comprises a cam (401) with a pin, a wheel groove (402), a third gear (403), a fourth gear (404) and a transverse plate (405);

the utility model discloses a take round pin cam (401) to rotate with box (1), take round pin cam (401) to be fixed continuous through pivot and below first gear (301), the cylinder round pin end and race (402) sliding connection of taking round pin cam (401), the center of race (402) has third gear (403) through the pivot rigid coupling, the edge engagement of third gear (403) is connected with fourth gear (404), the one end of third gear (403) is rotated with box (1) through the pivot and is connected, the one end of fourth gear (404) is passed through pivot and diaphragm (405) looks rigid coupling, the other end of fourth gear (404) is rotated with box (1) through the pivot and is connected.

3. The airtightness test apparatus for ultra-thin-wall steel pipes according to claim 2, wherein: one end of the transverse plate (405) is provided with a clamping device (5);

the clamping device (5) comprises a hand wheel (501), a screw rod (502), a first nut (503), a supporting frame (504), a second nut (505), a clamping claw (506) and a sucking disc (507);

the one end of support frame (504) is passed through the pillar and is fixed continuous with diaphragm (405), the right side of support frame (504) is passed through the bearing and is rotated with screw rod (502) and be connected, the one end rigid coupling of screw rod (502) has hand wheel (501), the outer wall of screw rod (502) links to each other with first nut (503) and second nut (505) screw thread respectively, the outer wall of first nut (503) passes through hole and three gripper jaw (506) swing joint, and is three the round pin axle is passed through to the one end of gripper jaw (506) and support frame (504) swing joint, and is three the other end rigid coupling of gripper jaw (506) has sucking disc (507).

4. The airtightness test apparatus for ultra-thin-wall steel pipes according to claim 1, wherein: the outer wall of the box body (1) is movably connected with a box door (7) through a door leaf, and a water tank (6) is arranged at the bottom of the brush (308).

5. The airtightness test apparatus for ultra-thin-wall steel pipes according to claim 3, wherein: one end of the second nut (505) is provided with a rubber cushion.

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