CN210037099U

CN210037099U - Sealing detection device for check valve

Info

Publication number: CN210037099U
Application number: CN201921121878.5U
Authority: CN
Inventors: 郑德宠
Original assignee: Binhai Jiutong Valve Co Ltd
Current assignee: Binhai Jiutong Valve Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-02-07
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses a sealed detection device for check valve, comprises a workbench, the board is placed to the middle fixedly connected with at workstation top, the top swing joint who places the board has the U template, the left and right sides of U template is all through connection piece fixedly connected with U type cover, two swing joint has the check valve between the internal surface of U type cover, the utility model relates to an air tightness check out test set technical field. This a sealed detection device for check valve utilizes U type cover to erect the check valve to usable suction tube and ladder sealing plug cooperation are sealed with the check valve both ends, and extract air wherein, can reverse to detect the leakproofness, if check valve surface gas leakage, then can absorb the downthehole powder of honeycomb, can inspect the gas tightness, can directly mark simultaneously, also need not dry again, the post processing of being convenient for, and when extracting the air, inside and outside pressure differential is big more, the sealed effect of ladder sealing plug is better.

Description

Sealing detection device for check valve

Technical Field

The utility model relates to an air tightness check out test set technical field specifically is a sealed detection device for check valve.

Background

The check valve is a valve with a circular valve clack and acts by self weight and medium pressure to block the medium from flowing backwards. It belongs to the automatic valve category, also called check valve, reflux valve or isolation valve. The valve clack motion mode is divided into lifting type and swing type. The lift check valve is similar in structure to the stop valve and only lacks a valve rod that drives the valve flap. The medium flows in from the inlet end (lower side) and flows out from the outlet end (upper side). The valve is opened when the inlet pressure is greater than the sum of the weight of the flap and its flow resistance. Otherwise, the valve is closed when the medium flows backwards. Swing check valves have a flap that is tilted and can pivot, and operate on a similar principle to lift check valves. The check valve is commonly used as a bottom valve of a water pumping device and can prevent the backflow of water. The stop valve and the stop valve are combined for use, and the safety isolation effect can be achieved. The disadvantages are high resistance and poor sealing performance when closed.

The existing check valve needs to be subjected to air tightness detection before leaving a factory so as to ensure normal operation of the check valve, the existing detection mode is that water is filled into the check valve, or the check valve is placed in water and is inflated into the check valve, if air holes exist, gas or water leaks out, and then the surface of the check valve is defective, but after the check mode is adopted, the valve needs to be subjected to drying treatment, and the check valve is troublesome, and the defective part is marked manually, and the check valve is troublesome.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model provides a sealed detection device for check valve has solved current detection mode and has generally filled water in to the check valve, or has put the check valve in aqueous, aerifys in to the check valve, detects the back, and the valve still need carry out drying process, and is the manual work usually to the defect department and marks comparatively troublesome problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a sealed detection device for check valve, includes the workstation, the board is placed to the middle fixedly connected with at workstation top, the top swing joint who places the board has the U template, the left and right sides of U template all is through connection piece fixedly connected with U type cover, two swing joint has the check valve between the internal surface of U type cover, honeycomb holes have been seted up to the internal surface of U template, and the inside packing of honeycomb holes has the powder, the equal fixedly connected with mount in left and right sides at workstation top, and the inside fixedly connected with cylinder of mount, the cylinder is close to the one end fixedly connected with sealing plug of check valve, and one side intercommunication that the suction tube is close to the check valve has the ladder.

Preferably, the top of the air pumping cylinder is communicated with an air pumping pipe, and an air pumping three-way pipe is communicated between the top ends of the two air pumping pipes.

Preferably, one ends, far away from each other, of the two cylinders are communicated with inflation pipes, and an inflation three-way pipe is communicated between the top ends of the two inflation pipes.

Preferably, the equal fixedly connected with ladder inserted bar in bottom of both sides around the U template, place the equal fixedly connected with fixed socket in four corners at board top, and fixed socket's inside offer with the regulation hole of ladder inserted bar looks adaptation.

Preferably, the cylinder includes sleeve and push rod, and the sleeve cover establishes the outside at the push rod, the push rod is located the inside one end fixedly connected with piston of sleeve, the surface of push rod just is located telescopic inside cover and is equipped with reset spring.

Preferably, one end of the sleeve, which is close to the piston, is connected with a pipeline connector in a penetrating manner, and the pipeline connector is communicated with one end of the inflation tube.

Advantageous effects

The utility model provides a sealed detection device for check valve. Compared with the prior art, the method has the following beneficial effects:

(1) the sealing detection device for the check valve is characterized in that a U-shaped plate is movably connected to the top of a placing plate, the left side and the right side of the U-shaped plate are fixedly connected with U-shaped sleeves through connecting plates, a check valve is movably connected between the inner surfaces of the two U-shaped sleeves, honeycomb holes are formed in the inner surfaces of the U-shaped plates, powder is filled in the honeycomb holes, fixing frames are fixedly connected to the left side and the right side of the top of a workbench, an air cylinder is fixedly connected to the inner portion of each fixing frame, an air suction cylinder is fixedly connected to one end, close to the check valve, of the air cylinder, a stepped sealing plug is communicated with one side, close to the check valve, of the air suction cylinder, the check valve is erected through the U-shaped sleeves, two ends of the check valve can be sealed through the cooperation of the air suction, can inspect the gas tightness, can directly mark simultaneously, also need not carry out the drying again, the post processing of being convenient for, and when extracting the air, inside and outside pressure differential is big more, and the sealed effect of ladder sealing plug is better.

(2) This a sealed detection device for check valve, one side intercommunication through being close to the check valve at the pump bowl has the ladder sealing plug, the equal fixedly connected with ladder inserted bar in bottom of both sides around the U template, the equal fixedly connected with fixed socket in four corners of placing the board top, and fixed socket's inside offer the regulation hole with ladder inserted bar looks adaptation, set up the detection that the different bore check valve can be satisfied to the ladder sealing plug, and the check valve of different specifications can use the U template and the U type cover that correspond the specification, and utilize the ladder inserted bar that the regulation hole can correspond different intervals, and the central height that highly adjusts the check valve that the ladder was seted up on the usable ladder inserted bar, many-sided cooperation, make the device can detect to the check valve of different specifications, and the commonality is strong.

Drawings

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

FIG. 2 is a side view of the U-shaped plate and the U-shaped sleeve of the present invention;

FIG. 3 is a perspective view of the U-shaped board of the present invention;

fig. 4 is a perspective view of the placing plate and the fixed socket of the present invention;

fig. 5 is a cross-sectional view of the cylinder of the present invention.

In the figure: 1-workbench, 2-placing plate, 3-U-shaped plate, 4-connecting sheet, 5-U-shaped sleeve, 6-honeycomb hole, 7-fixing frame, 8-cylinder, 9-air suction cylinder, 10-step sealing plug, 11-air suction pipe, 12-air suction three-way pipe, 13-air charging pipe, 14-air charging three-way pipe, 15-step inserted bar, 16-fixing socket, 17-adjusting hole, 18-sleeve, 19-push rod, 20-piston, 21-reset spring and 22-pipeline joint.

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. 1-5, the present invention provides a technical solution: a sealing detection device for a check valve comprises a workbench 1, a placing plate 2 is fixedly connected in the middle of the top of the workbench 1, a U-shaped plate 3 is movably connected to the top of the placing plate 2, stepped insertion rods 15 are fixedly connected to the bottoms of the front side and the rear side of the U-shaped plate 3, fixed sockets 16 are fixedly connected to the four corners of the top of the placing plate 2, adjusting holes 17 matched with the stepped insertion rods 15 are formed in the fixed sockets 16, stepped sealing plugs 10 are arranged to meet detection of check valves with different calibers, check valves with different specifications can use the U-shaped plates 3 and U-shaped sleeves 5 with corresponding specifications, the adjusting holes 17 can correspond to the stepped insertion rods 15 with different intervals, the height formed by steps on the stepped insertion rods 15 can be used for adjusting the central height of the check valve, the device can be matched in multiple aspects, the device can detect check valves with different specifications, and is strong in, the left side and the right side of the U-shaped plate 3 are fixedly connected with U-shaped sleeves 5 through connecting sheets 4, a check valve is movably connected between the inner surfaces of the two U-shaped sleeves 5, honeycomb holes 6 are formed in the inner surfaces of the U-shaped plate 3, powder is filled in the honeycomb holes 6, fixing frames 7 are fixedly connected to the left side and the right side of the top of the workbench 1, air cylinders 8 are fixedly connected to the inner portions of the fixing frames 7, the ends, far away from each other, of the two air cylinders 8 are communicated with air charging pipes 13, an air charging three-way pipe 14 is communicated between the top ends of the two air charging pipes 13, each air cylinder 8 comprises a sleeve 18 and a push rod 19, the sleeve 18 is sleeved on the outer portion of the push rod 19, one end, located inside the sleeve 18, of the push rod 19 is fixedly connected with a piston 20, a reset spring 21 is sleeved on the surface of the push rod 19, the one end fixedly connected with air pump bowl 9 that cylinder 8 is close to the check valve, and one side intercommunication that air pump bowl 9 is close to the check valve has ladder sealing plug 10, the one end of ladder sealing plug 10 has the gas pocket, the air in the check valve can be extracted, utilize U type cover 5 to erect the check valve, and usable air pump bowl 9 cooperates with ladder sealing plug 10 with the check valve both ends sealed, and extract air wherein, can reverse to detect the leakproofness, if check valve surface gas leakage, then can absorb the powder in the honeycomb holes 6, can inspect the gas tightness, can directly mark simultaneously, also need not dry again, the post processing of being convenient for, and when extracting the air, inside and outside pressure difference is big more, the sealed effect of ladder sealing plug 10 is better, the top intercommunication of air pump bowl 9 has exhaust tube 11, the intercommunication has air exhaust three-way pipe 12 between the top of two exhaust tubes 11.

When the air pump is used, the three-way inflation pipe 14 and the three-way air extraction pipe 12 are respectively connected with an air pump through pipelines (a pressure valve can be arranged on the inflatable pipeline, when the air pump is inflated, if the pressure is too high, redundant air can be automatically discharged), the check valve is placed on the U-shaped sleeve 5 with the corresponding specification, then the step insertion rod 15 at the bottom of the U-shaped plate 3 is inserted into the fixed socket 16 on the placing plate 2, the inflatable air pump is started, the air cylinder 8 is inflated through the inflation pipe 13, the push rod 19 pushes the air extraction cylinder 9 until the step sealing plugs 10 are tightly pressed at two ends of the check valve, then the other air pump is started, air in the check valve is extracted through the air extraction pipe 11, the air extraction cylinder 9 and the step sealing plug 10, if the surface of the check valve is provided with air holes, inward air flow can be formed at the air holes, further, powder in the adjacent honeycomb holes 6 can be adsorbed, the push rod 19 is pushed back into place by the return spring 21 and the check valve is removed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sealed detection device for check valve, includes workstation (1), board (2), its characterized in that are placed to the middle fixedly connected with at workstation (1) top: place top swing joint of board (2) has U template (3), the left and right sides of U template (3) all is through connection piece (4) fixedly connected with U jacket (5), two swing joint has the check valve between the internal surface of U jacket (5), honeycomb holes (6) have been seted up to the internal surface of U template (3), and the inside packing of honeycomb holes (6) has the powder, the equal fixedly connected with mount (7) in the left and right sides at workstation (1) top, and inside fixedly connected with cylinder (8) of mount (7), cylinder (8) are close to the one end fixedly connected with suction tube (9) of check valve, and one side intercommunication that suction tube (9) are close to the check valve has ladder sealing plug (10).

2. The seal detection device for the check valve according to claim 1, wherein: the top of the air pumping cylinder (9) is communicated with an air pumping pipe (11), and an air pumping three-way pipe (12) is communicated between the top ends of the two air pumping pipes (11).

3. The seal detection device for the check valve according to claim 1, wherein: one ends, far away from each other, of the two cylinders (8) are communicated with inflation tubes (13), and an inflation three-way tube (14) is communicated between the top ends of the two inflation tubes (13).

4. The seal detection device for the check valve according to claim 1, wherein: the equal fixedly connected with ladder inserted bar (15) in bottom of both sides around U template (3), place the equal fixedly connected with fixed socket (16) in four corners at board (2) top, and the inside of fixed socket (16) is seted up with regulation hole (17) of ladder inserted bar (15) looks adaptation.

5. The seal detection device for the check valve according to claim 1, wherein: the air cylinder (8) comprises a sleeve (18) and a push rod (19), the sleeve (18) is sleeved outside the push rod (19), the push rod (19) is located at one end of the inside of the sleeve (18) and is fixedly connected with a piston (20), and the surface of the push rod (19) and the inside of the sleeve (18) are sleeved with a return spring (21).

6. The seal detection device for the check valve according to claim 5, wherein: one end, close to the piston (20), of the sleeve (18) is connected with a pipeline connector (22) in a penetrating mode, and the pipeline connector (22) is communicated with one end of the inflation tube (13).