CN211205685U

CN211205685U - Airtight test machine of metal braided tube industry

Info

Publication number: CN211205685U
Application number: CN202020259160.9U
Authority: CN
Inventors: 林明忠
Original assignee: Zhejiang Dingbo Plumbing Manufacturing Co ltd
Current assignee: Zhejiang Dingbo Plumbing Manufacturing Co ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-08-07
Anticipated expiration: 2030-03-05

Abstract

The utility model discloses a metal braided tube industry airtightness testing machine, which comprises a supporting plate, a sealing mechanism and a pressurization detecting mechanism, wherein two vertical plates are fixedly connected at the upper end of the supporting plate, one ends of the vertical plates, which are far away from the supporting plate, are provided with top plates, four electric telescopic rods are fixedly connected on the supporting plate, and the output ends of the electric telescopic rods are fixedly connected with a pressing plate, the utility model is provided with the sealing mechanism, can effectively seal joint workpieces, prevent inaccurate measured data caused by poor sealing, simultaneously buffer the joint workpieces when the joint workpieces are pressed down, prevent the joint workpieces from being damaged due to direct pressing, and cause loss to production, the utility model is also provided with the pressurization detecting mechanism, only one air cylinder is used for detecting a plurality of joint workpieces, the weight and the space of the whole device are saved, and simultaneously a comparison air pipe and a barometer B for comparison are arranged, the air tightness detection is prevented from being inaccurate due to comparison only by using set air pressure data.

Description

Airtight test machine of metal braided tube industry

Technical Field

The utility model relates to a pipe trade is woven to the metal, specifically is an airtight test machine of pipe trade is woven to metal.

Background

At present, products in many industries have high requirements on air tightness, the air tightness cannot meet the requirements, the service performance of the products is directly influenced, and even safety accidents can be caused, so that an air tightness test is usually required.

At present, most adopt the pressure method to carry out the gas tightness and detect, need seal the work piece when the test, but current sealing method only relies on the pressure of sealed pad and clamp plate to seal the work piece, it is poor to do so sealed effect, clamp plate pressure direct action is on sealing ring and work piece, damage to sealing ring and work piece is big, influence detection effect, when carrying out the gas tightness to a plurality of work pieces simultaneously and detecting, most all be equipped with solitary cylinder to every work piece, come to carry out the pressurization test to the work piece, but this kind of method can lead to the space and the weight grow of this equipment, be unfavorable for the staff operation.

In view of the above problems, an improved airtight testing machine for metal braided tube industry is designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an airtight test machine of metal braided tube trade to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an industrial air tightness testing machine for metal braided tubes comprises a supporting plate, wherein a base used for supporting the whole device is fixedly connected to the bottom end of the supporting plate, two opposite vertical plates are fixedly connected to the upper end of the supporting plate, a top plate is arranged at one end, away from the supporting plate, of each vertical plate, the vertical plates are connected through the top plate, a central controller is fixedly connected to the central position of one side, close to the supporting plate, of the top plate, four electric telescopic rods are fixedly connected to the supporting plates on the periphery of the central controller, a pressing plate is fixedly connected to the output ends of the electric telescopic rods, the electric telescopic rods are arranged on the four corners of the pressing plate, a box body is fixedly connected to the supporting plate right below the pressing plate, a bearing plate used for being matched with the pressing plate is fixedly connected to the upper end of the box body, the bottom of the groove of the bearing plate is provided with an opening, sealing mechanisms are arranged in the groove of the bearing plate and the groove of the pressing plate, and a pressurizing detection mechanism for detecting the air tightness of the metal braided pipe joint is arranged in the box body.

As a further aspect of the present invention: a filter screen for preventing dust and the like from passing through the opening is fixedly connected in the opening.

As a further aspect of the present invention: the pressurizing detection mechanism comprises an air cylinder and a sound box, the sound box is fixedly connected on the side wall of the box body, the cylinder is fixedly connected at the central position of the bottom of the box body, the output end of the cylinder is fixedly connected with a gas distribution pipe, the gas distributing pipe is fixedly connected with a plurality of gas guide pipes, one end of each gas guide pipe, which is far away from the gas distributing pipe, is fixedly connected with an opening at the bottom of the groove of the bearing plate, a valve A for controlling the opening and closing of the air duct is fixedly connected on the air duct, a contrast air duct is fixedly connected on the side wall of the air duct between the valve A and the opening, the contrast air pipe is fixedly connected with a valve B for controlling the contrast air pipe to be opened and closed, the valve A and the valve B can be opened and closed at the same time when in work, install the barometer A that is used for measuring air duct internal gas pressure on the air duct between comparison trachea and the opening, install the barometer B that is used for measuring comparison trachea internal gas pressure on the comparison trachea.

As a further aspect of the present invention: the sealing mechanism comprises two fixing frames and an expansion ring, the expansion ring is fixedly connected with the top of the groove, the fixing frame is fixedly connected to the side wall of the groove, hydraulic oil is arranged in the fixing frame, a sliding rod capable of sliding along the inner wall of the fixing frame is arranged in the fixing frame, the upper end of the fixed frame is fixedly connected with a stop block for preventing the sliding rod from sliding out of the fixed frame, one end of the sliding rod far away from the fixed frame is fixedly connected with a squeezing plate for squeezing a joint workpiece, a leak hole matched with the opening for use is arranged at the center of the extrusion plate in the groove of the bearing plate, a liquid guide pipe is fixedly connected on the side wall of the fixing frame far away from the center of the groove, one end of the liquid guide pipe, which is far away from the fixing frame, is arranged on the expansion ring, an extrusion block which can slide along the inner wall of the liquid guide pipe is arranged in the liquid guide pipe, and a sealing gasket for preventing hydraulic oil from leaking is fixedly connected to the side wall of the extrusion block.

As a further aspect of the present invention: and a sealing gasket for preventing hydraulic oil from leaking is fixedly connected to the side wall of the sliding rod.

As a further aspect of the present invention: one end of the extrusion block close to the expansion ring is fixedly connected with a cushion pad for preventing the extrusion block from crushing the expansion ring.

As a further aspect of the present invention: and the extrusion plate is fixedly connected with a rubber pad used for sealing the joint workpiece.

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

1. the utility model discloses be provided with sealing mechanism, can effectively the sealing joint work piece, prevent because sealed bad, cause the measured data inaccurate, influence testing result, cushion the joint work piece simultaneously when crimping joint work piece down, prevent directly to push down and lead to connecting the work piece and damage, cause the loss to production.

2. The utility model discloses still be provided with pressurization detection mechanism, only use a cylinder to detect a plurality of joint work pieces, save the weight and the space of whole device, make things convenient for the staff to use and operate, be provided with contrast trachea and barometer B that the contrast was used simultaneously, prevent to only use the atmospheric pressure data of setting for to contrast, lead to the gas tightness to detect inaccurately.

Drawings

Fig. 1 is a schematic diagram of an appearance three-dimensional structure of an airtight testing machine in the metal braided tube industry.

Fig. 2 is a schematic structural diagram of an airtight testing machine in the metal braided tube industry.

Fig. 3 is an enlarged schematic view of a metal braided tube industrial airtightness testing machine at a position a in fig. 2.

Fig. 4 is an enlarged schematic view of the airtight testing machine for metal braided tube industry at B in fig. 2.

Fig. 5 is an enlarged schematic view of the airtight testing machine for metal braided tube industry at C in fig. 2.

Wherein: the device comprises a supporting plate 1, a base 2, a vertical plate 3, a top plate 4, a central controller 5, an electric telescopic rod 6, a pressing plate 7, a box body 8, a bearing plate 9, a groove 10, an opening 11, an air cylinder 12, a sound 13, a gas distribution pipe 14, a gas guide pipe 15, a valve A16, a comparison gas pipe 17, a valve B18, a barometer A19, a barometer B20, a fixing frame 21, an expansion ring 22, a sliding rod 23, a stop block 24, a sealing gasket 25, an extrusion plate 26, a leak hole 27, a rubber gasket 28, a liquid guide pipe 29 and an extrusion block 30.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 5, in the embodiment of the present invention, an industrial airtightness testing machine for metal braided tubes comprises a supporting plate 1, a base 2 for supporting the whole device is fixedly connected to the bottom end of the supporting plate 1, two opposite vertical plates 3 are fixedly connected to the upper end of the supporting plate 1, a top plate 4 is arranged at one end of each vertical plate 3 away from the supporting plate 1, the vertical plates 3 are connected through the top plate 4, a central controller 5 is fixedly connected to a central position of one side of the top plate 4 close to the supporting plate 1, four electric telescopic rods 6 are fixedly connected to the supporting plate 1 around the central controller 5, a pressing plate 7 is fixedly connected to an output end of each electric telescopic rod 6, the electric telescopic rods 6 are arranged at four corners of the pressing plate 7, a box body 8 is fixedly connected to the supporting plate 1 under the pressing plate 7, and a loading plate 9 for cooperating with the pressing, the bearing plate 9 and the pressing plate 7 are respectively provided with a groove 10, the grooves 10 of the bearing plate 9 and the grooves 10 of the pressing plate 7 are in one-to-one correspondence and are arranged oppositely, the bottom of the groove 10 of the bearing plate 9 is provided with an opening 11, sealing mechanisms are respectively arranged in the grooves 10 of the bearing plate 9 and the grooves 10 of the pressing plate 7, and a pressurizing detection mechanism for detecting the air tightness of the metal braided tube joint is arranged in the box body 8.

The pressurization detection mechanism comprises an air cylinder 12 and a sound device 13, the sound device 13 is fixedly connected to the side wall of the box body 8, the air cylinder 12 is fixedly connected to the central position of the bottom of the box body 8, the output end of the air cylinder 12 is fixedly connected with a gas distribution pipe 14, a plurality of gas guide pipes 15 are fixedly connected to the gas distribution pipe 14, one end, far away from the gas distribution pipe 14, of each gas guide pipe 15 is fixedly connected to an opening 11 at the bottom of a groove 10 of the bearing plate 9, a valve A16 used for controlling the opening and closing of each gas guide pipe 15 is fixedly connected to each gas guide pipe 15, a contrast gas pipe 17 is fixedly connected to the side wall of each gas guide pipe 15 between the valve A16 and the opening 11, a valve B18 used for controlling the opening and closing of each contrast gas guide pipe 17 is fixedly connected to each contrast gas guide pipe 17, the valve A16 and the valve B18 can be opened and closed, the air pressure gauge B20 for measuring the air pressure in the comparison air pipe 17 is arranged on the comparison air pipe 17, the working principle of the pressurization detection mechanism is that the air cylinder 12 is started, the air cylinder 12 pressurizes the metal woven pipe joint through the air distribution pipe 14 and the air guide pipe 15, after a period of pressurization, the air cylinder 12 is closed, the valve A16 and the valve B18 are closed at the same time, the air pressure data measured by the air pressure gauge B20 in the comparison air pipe 17 is the comparison air pressure, after a period of time, if the measurement data of the air pressure gauge A19 is the same as the measurement data of the air pressure gauge B20, the air tightness of the metal woven pipe joint is proved to be good, the production requirement is met, if the measurement data of the air pressure gauge A19 is lower than the measurement data of the air pressure gauge B20, the air tightness of the metal woven pipe joint is proved not to be bad, the production requirement is proved, reminding the staff to handle, comparing with prior art, only using a cylinder 12 to detect a plurality of work pieces that connect, saving the weight and the space of whole device, make things convenient for the staff to use and operate, be provided with the contrast trachea 17 and the barometer B20 of comparison usefulness simultaneously, prevent to only use the atmospheric pressure data of setting for to contrast, lead to the gas tightness to detect inaccurately.

The sealing mechanism comprises two fixing frames 21 and an expansion ring 22, the expansion ring 22 is fixedly connected to the top of the groove 10, the fixing frames 21 are fixedly connected to the side wall of the groove 10, hydraulic oil is arranged in the fixing frames 21, a sliding rod 23 capable of sliding along the inner wall of the fixing frame 21 is arranged in the fixing frame 21, a stop block 24 for preventing the sliding rod 23 from sliding out of the fixing frame 21 is fixedly connected to the upper end of the fixing frame 21, a sealing gasket 25 for preventing the hydraulic oil from leaking is fixedly connected to the side wall of the sliding rod 23, a squeezing plate 26 for squeezing joint workpieces is fixedly connected to one end, away from the fixing frame 21, of the sliding rod 23, a leak hole 27 matched with the opening 11 for use is formed in the center position of the squeezing plate 26 in the groove 10 of the bearing plate 9, a rubber gasket 28 for sealing the joint workpieces is fixedly connected, one end of the liquid guide pipe 29, which is far away from the fixed frame 21, is arranged on the expansion ring 22, an extrusion block 30 which can slide along the inner wall of the liquid guide pipe 29 is arranged in the liquid guide pipe 29, a sealing gasket 25 for preventing hydraulic oil from leaking is fixedly connected to the side wall of the extrusion block 30, one end of the extrusion block 30, which is close to the expansion ring 22, is fixedly connected with a buffer pad for preventing the extrusion block 30 from crushing the expansion ring 22, the working principle of the sealing mechanism is that after a joint workpiece is extruded, the sliding rod 23 is pushed to slide through the extrusion plate 26, the sliding rod 23 extrudes the hydraulic oil in the fixed frame 21, the hydraulic oil flows into the liquid guide pipe 29 and pushes the extrusion block 30 to move, the extrusion block 30 extrudes the expansion ring 22, the expansion ring 22 expands after being extruded, and clamps and seals the joint workpiece, compared with the prior, influence the testing result, cushion the joint work piece when pressing the joint work piece down simultaneously, prevent that direct pushing down from resulting in the joint work piece to damage, cause the loss to production.

The utility model discloses a theory of operation is:

during operation, place the joint work piece in the recess 10 of loading board 9, start electric telescopic handle 6, electric telescopic handle 6 output promotes clamp plate 7 and makes the joint work piece enter into the recess 10 of clamp plate 7 to 9 directions removal of loading board, and the extrusion joint work piece, the joint work piece receives the extrusion back, can promote slide bar 23 through stripper plate 26 and slide, the hydraulic oil in the fixed frame 21 of slide bar 23 extrusion, hydraulic oil flows in catheter 29 and promotes stripper block 30 and remove, stripper block 30 extrusion expansion ring 22, expansion ring 22 receives the inflation after the extrusion, the sealed joint work piece of centre gripping.

Starting the air cylinder 12, pressurizing the metal braided pipe joint through the air distribution pipe 14 and the air guide pipe 15 by the air cylinder 12, closing the air cylinder 12 after pressurizing for a period of time, closing the valve A16 and the valve B18 at the same time, comparing the air pressure data measured by the barometer B20 in the air pipe 17 with reference air pressure, after a period of time, if the measured data of the barometer A19 is the same as the measured data of the barometer B20, proving that the air tightness of the metal braided pipe joint is good and meets production requirements, and if the measured data of the barometer A19 is lower than the measured data of the barometer B20, proving that the air tightness of the metal braided pipe joint is poor and does not meet the production requirements, meanwhile, the central controller 5 outputs a signal to the sound 13, and the sound 13 broadcasts the position of a joint.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An industrial airtight testing machine for metal braided tubes comprises a supporting plate (1), wherein a base (2) used for supporting the whole device is fixedly connected to the bottom end of the supporting plate (1), two opposite vertical plates (3) are fixedly connected to the upper end of the supporting plate (1), a top plate (4) is arranged at one end, far away from the supporting plate (1), of each vertical plate (3), the vertical plates (3) are connected through the top plate (4), the industrial airtight testing machine is characterized in that a central controller (5) is fixedly connected to the central position of one side, close to the supporting plate (1), of each top plate (4), four electric telescopic rods (6) are fixedly connected to the supporting plate (1) on the periphery of the central controller (5), a pressing plate (7) is fixedly connected to the output end of each electric telescopic rod (6), the electric telescopic rods (6) are arranged at four corners of the pressing plate (7), and a box body (8) is fixedly connected, the utility model discloses a bearing plate, including box (8), clamp plate (7), recess (10), sealing mechanism, bearing plate (9) upper end fixedly connected with be used for with clamp plate (7) cooperation use, all set up on bearing plate (9) and clamp plate (7) recess (10), recess (10) of bearing plate (9) and recess (10) one-to-one and relative setting of clamp plate (7), opening (11) have been seted up to recess (10) bottom of bearing plate (9), all install sealing mechanism in recess (10) of bearing plate (9) and recess (10) of clamp plate (7), box (8) inside is provided with the pressurization detection mechanism who is used for detecting the metal and weaves the coupling gas tightness.

2. The airtight testing machine for metal braided tube industry as claimed in claim 1, wherein a filter net preventing dust and the like from passing through the opening (11) is fixedly connected in the opening (11).

3. The metal braided tube industrial airtightness testing machine is characterized in that the pressurization detection mechanism comprises an air cylinder (12) and a sound box (13), the sound box (13) is fixedly connected to the side wall of the box body (8), the air cylinder (12) is fixedly connected to the central position of the bottom of the box body (8), an output end of the air cylinder (12) is fixedly connected with an air distribution pipe (14), a plurality of air guide pipes (15) are fixedly connected to the air distribution pipe (14), one ends, far away from the air distribution pipe (14), of the air guide pipes (15) are fixedly connected to openings (11) at the bottoms of grooves (10) of the bearing plate (9), valves A (16) for controlling the opening and closing of the air guide pipes (15) are fixedly connected to the air guide pipes (15), and comparison air pipes (17) are fixedly connected to the side walls of the air guide pipes (15) between the valves A (16) and the openings (11), fixedly connected with control contrast trachea (17) valve B (18) of switch on contrast trachea (17), valve A (16) and valve B (18) can switch on and off simultaneously at the during operation, install barometer A (19) that are used for measuring air duct (15) internal gas pressure on air duct (15) between contrast trachea (17) and opening (11), install barometer B (20) that are used for measuring contrast trachea (17) internal gas pressure on contrast trachea (17).

4. The airtight testing machine for the metal braided tube industry as defined in claim 1, wherein the sealing mechanism comprises two fixing frames (21) and an expansion ring (22), the expansion ring (22) is fixedly connected to the top of the groove (10), the fixing frame (21) is fixedly connected to the side wall of the groove (10), hydraulic oil is provided in the fixing frame (21), a sliding rod (23) capable of sliding along the inner wall of the fixing frame (21) is provided in the fixing frame (21), a stopper (24) for preventing the sliding rod (23) from sliding out of the fixing frame (21) is fixedly connected to the upper end of the fixing frame (21), a pressing plate (26) for pressing joint workpieces is fixedly connected to one end of the sliding rod (23) far away from the fixing frame (21), a leakage hole (27) matched with the opening (11) is formed in the center position of the pressing plate (26) in the groove (10) of the bearing plate (9), fixedly connected with catheter (29) on the lateral wall at recess (10) center is kept away from to fixed frame (21), the one end setting that fixed frame (21) were kept away from to catheter (29) is on expansion ring (22), be provided with in catheter (29) and follow gliding extrusion piece (30) of catheter (29) inner wall, fixedly connected with prevents sealed pad (25) that hydraulic oil leaked on extrusion piece (30) lateral wall.

5. The airtight testing machine for metal braided tube industry as claimed in claim 4, wherein a sealing pad (25) for preventing hydraulic oil from leaking is fixedly connected to the side wall of said sliding bar (23).

6. The airtight testing machine for metal braided tube industry as claimed in claim 4, wherein a buffer pad for preventing the extrusion block (30) from crushing the expansion ring (22) is fixedly connected to one end of the extrusion block (30) close to the expansion ring (22).

7. The industrial airtightness testing machine for metal braided tubes as claimed in claim 4, wherein a rubber gasket (28) for sealing the joint workpiece is fixedly attached to said pressing plate (26).