CN107941424B - Cooler pressing device - Google Patents
Cooler pressing device Download PDFInfo
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- CN107941424B CN107941424B CN201711203344.2A CN201711203344A CN107941424B CN 107941424 B CN107941424 B CN 107941424B CN 201711203344 A CN201711203344 A CN 201711203344A CN 107941424 B CN107941424 B CN 107941424B
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- air
- pipe
- seat
- head
- air outlet
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a cooler pressing device, which relates to the technical field of pressing leakage detection devices, and comprises an air inlet head, an air outlet head and an air source with pressure, wherein the air source is connected with the air inlet head, the air inlet head comprises an air pipe, a first square seat, a rubber sleeve and a pushing mechanism, the air pipe can be inserted into an opening at one end of a copper pipe in a cooler, one end of the air pipe is opened, the other end of the air pipe is arranged in the first square seat, a through hole is arranged on the side wall of the first square seat and is communicated with the air pipe, the air pipe is connected with the air source through the through hole, the rubber sleeve is sleeved at the exposed end of the air pipe positioned at the first square seat, and the rubber sleeve is in a round table shape. The device uses nitrogen as a medium, can well complete the pressing leakage detection process, and can not cause any damage to the copper pipe.
Description
Technical Field
The invention relates to the technical field of pressing leakage detection devices.
Background
The copper pipe of the cooler is leaked due to erosion and abrasion of high-temperature gas and the like caused by corrosion of water and oil in the using process of the cooler. The leakage of the oil cooler can cause a large amount of oil leakage (the oil pressure in industry is generally higher than the water pressure of cooling water, so that the cooling water is prevented from entering the oil after the copper pipe of the cooler is damaged), and the oil is easily wasted greatly and polluted in environment; copper pipes of all stages of intercoolers of the air compressor are damaged, cooling water enters a shell with higher temperature, liquid water is evaporated quickly, scale is formed on the shell, and the water scale is fatal to an impeller rotating at high speed (the scale can cause dynamic balance failure of the impeller), so that the vibration of a unit shafting is increased, and the unit shafting is forced to stop for maintenance. Therefore, the pressure leakage test is required to be carried out on various coolers regularly, and the damaged and leaked copper pipes are found out and blocked. The original pressurizing method takes water as a medium, adopts a pressurizing machine to pressurize the water in the copper pipe of the cooler to lead the pressure to reach a specified value, has complex operation (the two ends of the copper pipe of the cooler are required to be plugged, the copper pipe is filled with water, pressurized, pressure maintaining is carried out, and the plugging devices at the two ends are removed), and the plugging devices at the two ends of the copper pipe are removed after the pressurizing is finished to cause high-pressure water injection, threat to peripheral electric equipment and easy pollution to a factory building are caused; and when the pressure-resistant test is carried out on the oil cooler, if the copper pipe leaks, the water is easily pressed into the pipeline in the oil product in the pressurizing process, so that the oil product is polluted.
Therefore, in order to solve the above problems, a novel pressing device is now provided.
Disclosure of Invention
The invention aims to provide a cooler pressing device which can solve the problems.
The technical scheme is that the cooler pressing device comprises an air inlet head, an air outlet head and an air source with pressure, wherein the air source is connected with the air inlet head, the air inlet head comprises an air pipe, a first seat, a rubber sleeve and a pushing mechanism, the air pipe can be inserted into one end of an inner copper pipe of the cooler, one end of the air pipe is opened, the other end of the air pipe is arranged in the first seat, a through hole is formed in the side wall of the first seat and communicated with the air pipe, the air pipe is connected with the air source through the through hole, the rubber sleeve is sleeved at the exposed end of the air pipe, and the rubber sleeve is in a round table shape.
Preferably, the structure of the air outlet head is the same as that of the air inlet head, the air outlet head is arranged at the other end of the copper pipe in the cooler, the air outlet head and the air inlet head are arranged oppositely, and a through hole on a first seat of the air outlet head is connected with an air outlet pipe and a pressure gauge.
Preferably, the ejection mechanism comprises a second square seat connected with the first square seat, three through holes are formed in the second square seat, the three through holes are respectively communicated with three side faces of the second square seat, the ejection mechanism further comprises two groups of U-shaped clamping rods which are symmetrically arranged, two ends of the two groups of U-shaped clamping rods are respectively inserted into two holes on the same side of the second square seat of the air inlet head and the air outlet head, rod ends of the two groups of U-shaped clamping rods are contacted in the three through holes, threads are formed in the inner wall of the other hole of the three through holes, and an adaptive ejector pin with external threads is arranged on the inner wall of the other hole of the three through holes and used for clamping the two groups of U-shaped clamping rods to enter into the insertion ends of the holes.
Preferably, the cross rod of the U-shaped clamping rod is divided into a left part and a right part which are split, a counter pulling mechanism capable of oppositely pulling the left part and the right part is arranged in the middle of the cross rod, and the counter pulling mechanism is used for enabling the air outlet head and the air inlet head to be tightly inserted into the copper pipe.
Preferably, the opposite pulling mechanism comprises opposite pulling rods respectively connected with the ends of the left and right cross bars, the two opposite pulling rods are arranged in parallel, a bolt is penetrated between the two opposite pulling rods and is provided with a nut matched with the bolt, the two opposite pulling rods are mutually close by means of the bolt and the nut, and a buffer spring is further extruded between the two opposite pulling rods.
Preferably, the central hole of the rubber sleeve is in sealing connection with the outer wall of the air pipe, and the smaller radius end of the rubber sleeve is inserted into the port of the copper pipe.
Preferably, the gas source is a nitrogen cylinder with pressure.
The beneficial effects of the utility model lie in, this device of pressing uses nitrogen gas as the medium, bottled nitrogen gas can satisfy the requirement, install the manometer and adjust to required pressure in bottled nitrogen bottleneck, use bottled nitrogen gas as the convenient nimble, not restricted by the operation place of pressure source, nitrogen gas passes through the air feed hose, with nitrogen gas input to stainless steel ball valve, when adopting gas to do the operation of pressing and looking for leaks, even copper pipe is damaged, gas entering fluid system also can escape immediately, can not cause there is fluid, can effectually protect copper pipe.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural view of the pull-to-pull mechanism in fig. 1.
Wherein, 1, an air inlet head, 2, an air outlet head, 3, an air pipe, 4, a first square seat, 5, a rubber sleeve, 6, an air outlet pipe, 7, a pressure gauge, 8 and a second square seat, 9, three-way holes, 10, U-shaped clamping rods, 11, ejector pins, 12, a counter pull rod, 13, buffer springs, 14, a cooler, 15 and copper pipes.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description: the device is characterized by comprising an air inlet head 1, an air outlet head 2 and an air source with pressure, wherein the air source is connected with the air inlet head 1, the air inlet head 1 comprises an air pipe 3 which can be inserted into one end of an copper pipe 15 in a cooler 14 and is provided with an opening, a first square seat 4, a rubber sleeve 5 and a pushing mechanism, one end of the air pipe 3 is provided with an opening, the other end of the air pipe is arranged in the first square seat 4, a through hole is formed in the side wall of the first square seat 4 and is communicated with the air pipe 3, the air pipe 3 is connected with the air source through the through hole, the rubber sleeve 5 is sleeved on the exposed end of the air pipe 3, which is positioned on the first square seat 4, and the rubber sleeve 5 is in a round table shape.
The structure of the air outlet head 2 is the same as that of the air inlet head 1, the air outlet head 2 is arranged at the other end of the copper pipe 15 in the cooler 14, the air outlet head 2 and the air inlet head 1 are oppositely arranged, and a through hole on the first square seat 4 of the air outlet head 2 is connected with the air outlet pipe 6 and the pressure gauge 7.
The ejector mechanism comprises a second square seat 8 connected with the first square seat 4, three through holes 9 are formed in the second square seat 8, the three through holes 9 are respectively communicated with three side faces of the second square seat 8, the ejector mechanism further comprises two groups of U-shaped clamping rods 10 which are symmetrically arranged, two ends of the two groups of U-shaped clamping rods 10 are respectively inserted into two holes on the same side of the second square seat 8 of the air inlet head 1 and the air outlet head 2, rod ends of the two groups of U-shaped clamping rods 10 are contacted in the three through holes 9, threads are formed in the inner wall of the other hole of the three through holes 9, and an ejector pin 11 with external threads is matched with the other hole, and the ejector pin 11 is used for clamping the two groups of U-shaped clamping rods 10 to enter into the insertion ends in the holes.
The cross bar of the U-shaped clamping bar 10 is divided into a left part and a right part, a counter-pulling mechanism capable of counter-pulling the left part and the right part is arranged in the middle of the cross bar, and the counter-pulling mechanism is used for enabling the air outlet head 2 and the air inlet head 1 to be tightly inserted into the copper pipe 15.
The opposite pulling mechanism comprises opposite pulling rods 12 which are respectively connected with the end parts of the left cross rod and the right cross rod, the two opposite pulling rods 12 are arranged in parallel, bolts penetrate between the two opposite pulling rods 12 and are matched with nuts, the two opposite pulling rods 12 are mutually close by means of the bolts and the nuts, and buffer springs 13 are further extruded between the two opposite pulling rods 12.
The central hole of the rubber sleeve 5 is in sealing connection with the outer wall of the air pipe 3, and the smaller radius end of the rubber sleeve 5 is inserted into the port of the copper pipe 15.
The air source is a nitrogen cylinder with pressure.
This device of beating presses uses nitrogen gas as the medium, bottled nitrogen gas can satisfy the requirement, bottled nitrogen gas bottleneck installation manometer 7 and adjust to required pressure, use bottled nitrogen gas as the pressure source convenient nimble, not restricted by the operation place, nitrogen gas passes through the air supply hose, connect the through-hole on the first seat 4 of air inlet head 1, and then the inside trachea 3 of intercommunication is aerifyd in copper pipe 15, stainless steel ball valve is still installed here, be used for controlling the break-make, after the inside copper pipe 15 of cooler 14 is entered into to nitrogen gas, come out from the exit after the circulation a week in copper pipe 15, and then enter into air outlet head 2, air outlet head 2 department is equipped with manometer 7, can survey the pressure value that fills, after the test finishes, utilize outlet duct 6 of air outlet head 2 department can be discharged gas, also be equipped with stainless steel ball valve in outlet duct 6 department for controlling the break-make.
In order to ensure that gas does not leak, the gas outlet head 2 and the gas inlet head 1 are sleeved with the rubber sleeve 5, the round table-shaped rubber sleeve 5 is plugged into the copper pipe 15, the copper pipe 15 is not damaged, meanwhile, in order to enable the rubber sleeve 5 to be tightly plugged into the copper pipe 15, a pushing mechanism is arranged, the concrete use process of the pushing mechanism is that the gas inlet head 1 and the gas outlet head 2 are plugged into the copper pipe 15 outlets on two sides, then two ends of the two groups of U-shaped clamping rods 10 are respectively inserted into the holes of the two second square seats 8, two ends in the holes are respectively contacted and propped together, at the moment, the pushing bolts 11 are screwed in, the ends of the two U-shaped clamping rods 10 are extruded and fixed, then bolts in the pulling mechanism are continuously screwed, and the two groups of pulling mechanisms are screwed simultaneously, so that the gas outlet head 2 and the rubber sleeve 5 on the gas inlet head 1 are pushed to be tightly plugged into the copper pipe 15, and sealing is completed.
The process of the pressing and leakage finding operation comprises the following steps: after the pressurization, observing the pressure gauge 7, if the pressure is continuous for 5 seconds, the pressure is not obviously reduced, so that the copper pipe 15 has a good sealing line; if the pressure is reduced, the copper pipe 15 is damaged, the copper pipe is required to be plugged, and the good tightness of plugs at two ends of the copper pipe 15 of the cooler 14 is required to be ensured in the pressure-proof test process.
The beneficial effects of the utility model lie in, this device of pressing uses nitrogen gas as the medium, bottled nitrogen gas can satisfy the requirement, install the manometer and adjust to required pressure in bottled nitrogen bottleneck, use bottled nitrogen gas as the convenient nimble, not restricted by the operation place of pressure source, nitrogen gas passes through the air feed hose, with nitrogen gas input to stainless steel ball valve, when adopting gas to do the operation of pressing and looking for leaks, even copper pipe is damaged, gas entering fluid system also can escape immediately, can not cause there is fluid, can effectually protect copper pipe.
Claims (3)
1. The cooler pressurizing device is characterized by comprising an air inlet head, an air outlet head and a pressurized air source, wherein the air source is connected with the air inlet head, the air inlet head comprises an air pipe, a first seat, a rubber sleeve and a pushing mechanism, the air pipe can be inserted into an opening at one end of a copper pipe in a cooler, one end of the air pipe is opened, the other end of the air pipe is arranged in the first seat, a through hole is formed in the side wall of the first seat and is communicated with the air pipe, the air pipe is connected with the air source through the through hole, the rubber sleeve is sleeved at the exposed end of the air pipe, which is positioned in the first seat, and the rubber sleeve is in a round table shape;
the structure of the air outlet head is the same as that of the air inlet head, the air outlet head is arranged at the other end of the copper pipe in the cooler, the air outlet head and the air inlet head are arranged oppositely, and a through hole on a first seat of the air outlet head is connected with an air outlet pipe and a pressure gauge; the air source is connected to the through hole on the first seat of the air inlet head through an air supply hose, and stainless steel ball valves for controlling on-off are respectively arranged on the air supply hose and the air outlet pipe;
the ejection mechanism comprises a second square seat connected with the first square seat, three through holes are formed in the second square seat, the three through holes are respectively communicated with three side faces of the second square seat, the ejection mechanism further comprises two groups of U-shaped clamping rods which are symmetrically arranged, two ends of the two groups of U-shaped clamping rods are respectively inserted into two holes on the same side of the second square seat of the air inlet head and the air outlet head, rod ends of the two groups of U-shaped clamping rods are contacted in the three through holes, the inner wall of the other hole of the three through holes is provided with threads, and an adaptive ejector pin with external threads is arranged on the inner wall of the other hole of the three through holes and used for clamping the insertion ends of the two groups of U-shaped clamping rods into the holes;
the cross rod of the U-shaped clamping rod is divided into a left part and a right part which are split, a counter-pulling mechanism capable of counter-pulling the left part and the right part is arranged in the middle of the cross rod, and the counter-pulling mechanism is used for enabling the air outlet head and the air inlet head to be tightly inserted into the copper pipe;
the opposite-pulling mechanism comprises opposite pull rods which are respectively connected with the end parts of the left cross rod and the right cross rod, the two opposite pull rods are arranged in parallel, a bolt is penetrated between the two opposite pull rods and is provided with a nut which is matched with the bolt, the two opposite pull rods are mutually close by means of the bolt and the nut, and a buffer spring is extruded between the two opposite pull rods.
2. The cooler pressing device of claim 1, wherein the central hole of the rubber sleeve is in sealing connection with the outer wall of the air pipe, and the smaller radius end of the rubber sleeve is inserted into the port of the copper pipe.
3. A cooler pressing device according to claim 2, wherein said gas source is a nitrogen cylinder with pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203344.2A CN107941424B (en) | 2017-11-27 | 2017-11-27 | Cooler pressing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711203344.2A CN107941424B (en) | 2017-11-27 | 2017-11-27 | Cooler pressing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107941424A CN107941424A (en) | 2018-04-20 |
| CN107941424B true CN107941424B (en) | 2023-09-05 |
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ID=61949018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711203344.2A Active CN107941424B (en) | 2017-11-27 | 2017-11-27 | Cooler pressing device |
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| Country | Link |
|---|---|
| CN (1) | CN107941424B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080822A (en) * | 1975-05-14 | 1978-03-28 | Aktiebolaget Atomenergi | Leak testing |
| CN203317253U (en) * | 2013-05-09 | 2013-12-04 | 安徽奥丰汽车配件有限公司 | Novel workpiece clamp |
| CN203385648U (en) * | 2013-07-24 | 2014-01-08 | 深圳市金瑞电子材料有限公司 | Peeling strength testing fixture of PPTC (Polymeric Positive Temperature Coefficient) battery piece |
| CN204807289U (en) * | 2015-07-29 | 2015-11-25 | 江西铜业股份有限公司 | Leak detection device is suppressed at special cooler tube bank scene |
| CN204868610U (en) * | 2015-06-29 | 2015-12-16 | 芜湖创智机械技术有限公司 | Automobile parts high temperature clamping device |
| CN106197884A (en) * | 2016-06-28 | 2016-12-07 | 国家电网公司 | Quickly detect the special purpose device of single hose electromotor oil cooler breakthrough |
-
2017
- 2017-11-27 CN CN201711203344.2A patent/CN107941424B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4080822A (en) * | 1975-05-14 | 1978-03-28 | Aktiebolaget Atomenergi | Leak testing |
| CN203317253U (en) * | 2013-05-09 | 2013-12-04 | 安徽奥丰汽车配件有限公司 | Novel workpiece clamp |
| CN203385648U (en) * | 2013-07-24 | 2014-01-08 | 深圳市金瑞电子材料有限公司 | Peeling strength testing fixture of PPTC (Polymeric Positive Temperature Coefficient) battery piece |
| CN204868610U (en) * | 2015-06-29 | 2015-12-16 | 芜湖创智机械技术有限公司 | Automobile parts high temperature clamping device |
| CN204807289U (en) * | 2015-07-29 | 2015-11-25 | 江西铜业股份有限公司 | Leak detection device is suppressed at special cooler tube bank scene |
| CN106197884A (en) * | 2016-06-28 | 2016-12-07 | 国家电网公司 | Quickly detect the special purpose device of single hose electromotor oil cooler breakthrough |
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| Publication number | Publication date |
|---|---|
| CN107941424A (en) | 2018-04-20 |
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