CN113700969B - Radiator core leak hunting frock - Google Patents
Radiator core leak hunting frock Download PDFInfo
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- CN113700969B CN113700969B CN202111251806.4A CN202111251806A CN113700969B CN 113700969 B CN113700969 B CN 113700969B CN 202111251806 A CN202111251806 A CN 202111251806A CN 113700969 B CN113700969 B CN 113700969B
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- Prior art keywords
- sleeve
- air bag
- air
- rotating
- wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
- F16L55/134—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing by means of an inflatable packing
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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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/10—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for containers, e.g. radiators
- G01M3/106—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for containers, e.g. radiators for radiators
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pipe Accessories (AREA)
Abstract
The invention is suitable for the field of air tightness detection devices, and provides a radiator core body leak detection tool which comprises a rotating core pipe, wherein an inflation inlet is formed in the periphery of the rotating core pipe, and first threads are formed in the upper side and the lower side of the inflation inlet; one end of the rotating core pipe is annularly provided with a plurality of core pipe positioning blocks; the inner wall of the rotary sealing sleeve is provided with threads; the rotary sealing sleeve is screwed outside the rotary core pipe, and a first air guide port is arranged at the periphery of the rotary sealing sleeve; the air bag support sleeve is sleeved outside the rotary sealing sleeve, and the outer wall of the air bag support sleeve is provided with a second air guide port; the outer wall of the air bag support sleeve is provided with an air bag mounting groove; the edge of the air bag is fixedly connected in the air bag mounting groove; the air inlet is arranged on one side of the connecting shell, so that the clamping effect is good, the pipeline inlet of the radiator core body with a smaller diameter can be sealed, the air bag which is shriveled is deeply inserted into the pipeline inlet, and then the air bag and the interior of the radiator core body are sequentially inflated, and the device has a good sealing effect and a compact structure.
Description
Technical Field
The invention relates to the field of air tightness detection devices, in particular to a leak detection tool for a radiator core.
Background
The core body of the radiator is a main part of the radiator, the core body of the radiator is generally assembled by fins, partition plates and sealing strips, the partition plates and the fins are sequentially arranged, and fluid penetrates through the fins to dissipate heat. After the radiator core is assembled, the air tightness of the radiator core needs to be detected.
The utility model discloses a leak department of radiator core can produce the bubble in aqueous, judges the position of leaking of radiator core through the bubble that the gas of certain pressure lets in toward the radiator core usually when detecting the radiator core among the prior art, then puts into the aquatic with the radiator core, and the department of leaking of radiator core can produce the bubble in aqueous.
In the prior art, the clamping effect of the tool for water detection is poor;
meanwhile, many plugging modes for water detection are that the air bag filled with gas is extruded, so that the air bag is further expanded, and the pipe opening is sealed.
However, the diameter of the inlet of the radiator core tube is small, so that the inflated air bag cannot be inserted into the inlet of the radiator core tube, and if the air bag is deflated, the amount of air in the air bag cannot be controlled, and the sealing effect of the plug can be affected by too much deflation.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide a leak detection tool for a radiator core, which has a good clamping effect, and can seal a pipeline inlet of the radiator core with a smaller diameter through a plugging head, and inflate an air bag and the inside of the radiator core in sequence by inserting the deflated air bag into the pipeline inlet.
In order to achieve the purpose, the invention provides a radiator core body leakage detection tool which comprises a fixing device body and a plugging head; the fixing device body comprises a supporting guide plate, and a connecting port is arranged in the middle of the supporting guide plate; the connecting port is connected with an air supply assembly; the distance between the upper clamping plate and the lower clamping plate is adjustable, and the upper clamping plate and the lower clamping plate are adjusted under the driving action of a moving driving assembly; the mobile driving component comprises a rotating motor fixedly arranged in the connecting port; the plugging head is arranged at the connecting port; the air supply assembly inflates the interior of the radiator core body through the plugging head; the air supply assembly can drive the plugging head to seal the pipeline inlet of the radiator core body; the rotating motor rotates in the positive direction, and the distance between the upper clamping plate and the lower clamping plate is reduced; the rotating motor rotates reversely, and the distance between the upper clamping plate and the lower clamping plate is increased.
According to the leak detection tool for the radiator core body, the mobile driving assembly further comprises a third bevel gear installed at the output end of the rotating motor; the gear sleeve is nested at the connecting port, the outer wall of the gear sleeve is provided with a gear-shaped structure, the inner wall of the gear sleeve is annularly provided with a plurality of gear grooves which play a gear transmission role, and the third bevel gear is meshed with the plurality of gear grooves; locate the transmission structure of gear cover one side, transmission structure includes: one end of the transmission screw rod is provided with a fourth bevel gear; the transmission screw rod is horizontally arranged on the supporting guide plate; the fourth bevel gear is meshed with the gear sleeve; the clamping plate driving sleeve is screwed with the transmission screw rod; the two connecting rods are symmetrically arranged on the upper side and the lower side of the splint driving sleeve; one ends of the two connecting rods are hinged to the clamping plate driving sleeve; the other end of one of the connecting rods is hinged to the upper clamping plate, and the other end of the other connecting rod is hinged to the lower clamping plate.
According to the leak detection tool for the radiator core body, the sealing head mounting seat is arranged between the gear sleeve and the sealing head; the blocking head mounting seat is nested at one end of the gear sleeve, and a fixing rod for fixing the position of the blocking head mounting seat is arranged on the outer wall of the blocking head mounting seat; one end of the fixed rod is fixedly connected with the plugging head mounting seat, and the other end of the fixed rod is fixedly connected with the supporting guide plate; the blocking head is fixedly connected to the blocking head mounting seat.
According to the leak detection tool for the radiator core body, the plugging head comprises a rotating core pipe, and one end of the rotating core pipe is a sealing end; an inflation inlet is formed in the periphery of the rotating core pipe, and first threads are formed in the upper side and the lower side of the outer wall of the rotating core pipe, which are positioned at the inflation inlet; a plurality of core pipe positioning blocks are annularly arranged at one end of the rotating core pipe, which is far away from the sealing end; the inner wall of the rotary sealing sleeve is provided with a thread matched with the first thread; the rotary sealing sleeve is in threaded connection with the outside of the rotary core pipe, and a first air guide port is formed in the periphery of the rotary sealing sleeve; the first air guide port is arranged corresponding to the inflation port; the air bag supporting sleeve is sleeved outside the rotary sealing sleeve, a second air guide port is formed in the outer wall of the air bag supporting sleeve, and the second air guide port is arranged corresponding to the first air guide port; an air bag mounting groove is formed in the outer wall of the air bag support sleeve at the upper position and the lower position of the second air guide port; the edge of the air bag is fixedly connected in the air bag mounting groove; the connecting shell is internally provided with a cavity, and a core tube driving assembly for driving the rotating core tube to rotate is arranged in the connecting shell; an air inlet is formed in one side of the connecting shell; the air inlet is connected with an air supply assembly; a sealing sleeve rotating and positioning assembly which enables the rotating sealing sleeve to rotate only by a preset angle is arranged between the rotating sealing sleeve and the air bag supporting sleeve; after the rotary sealing sleeve rotates for a preset angle, the rotary sealing sleeve can seal the second air guide port.
According to the leak detection tool for the radiator core body, the core tube driving assembly comprises a transmission sleeve which is sleeved with one end of the rotating core tube; the transmission sleeve is rotatably arranged in the connecting shell; a plurality of core pipe positioning sliding grooves are annularly formed in the inner wall of the transmission sleeve, and the core pipe positioning blocks are slidably mounted in the core pipe positioning sliding grooves; a second bevel gear is arranged outside the transmission sleeve; the rotating motor is arranged in the connecting shell, and a first bevel gear is arranged at the output end of the rotating motor; the second bevel gear is meshed with the first bevel gear; when the core tube positioning block is positioned at the bottom end (the end close to the air inlet) of the core tube positioning sliding chute, the inflation inlet, the first air guide opening and the second air guide opening are aligned; when the core tube positioning block is positioned at the top end (close to one end of the air bag) of the core tube positioning sliding groove, the inflation port is completely exposed from the top of the air bag supporting sleeve.
According to the leak detection tool for the radiator core body, the sealing sleeve rotating and positioning assembly comprises a plurality of sealing sleeve positioning blocks annularly arranged on the outer wall of one end of the rotating sealing sleeve and a fan-shaped angle limiting groove arranged at one end of the air bag supporting sleeve; the seal sleeve positioning block is movably mounted in the angle limiting groove.
According to the leak detection tool for the radiator core body, the width of the seal sleeve positioning block, the diameter of the first air guide port and the diameter of the second air guide port all account for 1/3 of the width of the arc-shaped outer edge of the angle limiting groove.
According to the leak detection tool for the radiator core, the fan-shaped angle of the angle limiting groove is 60-75 degrees.
According to the leak detection tool for the radiator core, an air bag pressing assembly is arranged between the air bag supporting sleeve and the connecting shell; the air bag pressing assembly comprises a second pressing plate arranged at one end of the air bag supporting sleeve; the second screw thread is arranged on the outer wall of the rotating core pipe; the second thread is opposite to the first thread in rotation direction; a guide sleeve welded to one end of the air bag support sleeve; one end of the compression sleeve is provided with a first compression plate, and the outer wall of the compression sleeve, close to the first compression plate, is provided with an air bag fixing groove; the compression sleeve is sleeved on the guide sleeve; threads matched with the second threads are arranged on one side of the interior of the compression sleeve; the compression sleeve is in threaded connection with the rotating core pipe; the preset position of the outer wall of the air bag is fixedly connected with the air bag fixing groove; and a positioning bulge for rotationally positioning the compression sleeve is arranged outside the compression sleeve.
According to the leak detection tool for the radiator core body, an end cover is arranged at one end, located on the angle limiting groove, of the air bag supporting sleeve.
According to the leak detection tool for the radiator core body, a sealing oil layer is filled between the rotary sealing sleeve and the air bag supporting sleeve.
The invention provides a leak detection tool for a radiator core, which comprises a rotating core pipe, wherein one end of the rotating core pipe is a sealing end; an inflation inlet is formed in the periphery of the rotating core pipe, and first threads are formed in the upper side and the lower side of the outer wall of the rotating core pipe, which are positioned at the inflation inlet; a plurality of core pipe positioning blocks are annularly arranged at one end of the rotating core pipe, which is far away from the sealing end; the inner wall of the rotary sealing sleeve is provided with a thread matched with the first thread; the rotary sealing sleeve is in threaded connection with the outside of the rotary core pipe, and a first air guide port is formed in the periphery of the rotary sealing sleeve; the first air guide port is arranged corresponding to the inflation port; the air bag supporting sleeve is sleeved outside the rotary sealing sleeve, a second air guide port is formed in the outer wall of the air bag supporting sleeve, and the second air guide port is arranged corresponding to the first air guide port; an air bag mounting groove is formed in the outer wall of the air bag support sleeve at the upper position and the lower position of the second air guide port; the edge of the air bag is fixedly connected in the air bag mounting groove; the connecting shell is internally provided with a cavity, and a core tube driving assembly for driving the rotating core tube to rotate is arranged in the connecting shell; an air inlet is formed in one side of the connecting shell; the air inlet is connected with an air supply assembly. The invention can seal the pipeline inlet of the radiator core body with smaller diameter, and the air bag which is shriveled is deeply inserted into the pipeline inlet, and then the air bag and the inner part of the radiator core body are sequentially inflated, so that the device has good sealing effect and compact structure.
Drawings
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural view of the gear sleeve of FIG. 1; FIG. 3 is a schematic view of the installation of the rotating electrical machine; FIG. 4 is a schematic structural view of a drive screw; FIG. 5 is a schematic structural view of a plug mount; FIG. 6 is a cross-sectional view of the plugging head of the present invention; FIG. 7 is a schematic view showing the structure of the rotary core tube of FIG. 6; FIG. 8 is a schematic view of the rotary seal cartridge of FIG. 6; FIG. 9 is a schematic view of the structure of the bladder support sleeve of FIG. 6; FIG. 10 is another angular schematic of FIG. 9; fig. 11 is a schematic view of the structure of the sealing oil layer: figure 12 is a state view of the gland rotational positioning assembly; FIG. 13 is a state diagram of the vent corresponding to FIG. 12; figure 14 is another state view of the gland rotational positioning assembly; FIG. 15 is a state diagram of the vent corresponding to FIG. 14; FIG. 16 is a schematic view of the construction of the drive sleeve; FIG. 17 is a schematic structural view of a compression sleeve; FIG. 18 is another angled, directional view of the compression sleeve; FIG. 19 is a view showing the operation of the air bag of the present device; FIG. 20 is another operational view of the bladder of the present device; FIG. 21 is another operational view of the bladder of the present device; fig. 22 is a state view before the airbag is not mounted to the airbag fixing groove; fig. 23 is an enlarged sectional view of a portion B in fig. 1; FIG. 24 is a view showing an operation state of the present apparatus; in the figure, 1-rotating core tube, 11-inflating opening, 12-first thread, 13-second thread, 14-core tube positioning block, 2-rotating sealing sleeve, 21-first air guide opening, 22-sealing sleeve positioning block, 3-air bag supporting sleeve, 31-second air guide opening, 32-air bag installing groove, 33-guiding sleeve, 331-positioning projection, 34-second pressing plate, 35-angle limiting groove, 4-connecting shell, 41-air inlet, 5-core tube driving component, 51-rotating motor, 52-first bevel gear, 53-second bevel gear, 54-transmission sleeve, 55-third bevel gear, 541-core tube positioning sliding groove, 543-connecting ring projection, 6-air bag pressing component, 61-pressing sleeve, 611-a first pressing plate, 612-an airbag fixing groove, 7-an airbag, 8-an end cover, 9-a sealed oil layer, 100-a fixing device body, 101-a supporting guide plate, 1011-a connecting port, 1012-a lead screw fixing sleeve, 1013-a sliding rail, 102-an upper clamping plate, 1021-a guide block, 106-a lower clamping plate, 107-a gear sleeve, 1071-a gear groove, 103-a transmission lead screw, 1031-a fourth bevel gear, 1032-a lead screw positioning groove, 104-a clamping plate driving sleeve, 105-a connecting rod, 108-a sealing head mounting seat, 1081-a fixing rod and 200-a sealing head.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1 and 3, the invention provides a leak detection tool for a radiator core, which comprises:
a fixture body 100, the fixture body 100 comprising:
a connecting port 1011 is arranged at the middle part of the supporting guide plate 101; the connecting port 1011 is connected with an external air supply component;
the distance between the upper clamping plate 102 and the lower clamping plate 106 is adjustable, the upper clamping plate 102 and the lower clamping plate 106 are both arranged perpendicular to the supporting guide plate 101, and the upper clamping plate 102 and the lower clamping plate 106 are adjusted under the driving action of a moving driving assembly;
referring to fig. 1 and 23, preferably, a clamping plate positioning assembly is disposed between each of the upper clamping plate 102, the lower clamping plate 106 and the support guide plate 101; the clamping plate positioning assembly comprises a slide rail 1013 vertically arranged on the supporting guide plate 101 and a guide block 1021 arranged on the upper clamping plate 102 and the lower clamping plate 106; the guide block 1021 is slidably mounted in the slide rail 1013; the upper and lower clamping plates 102 and 106 are positioned by the slide rail 1013 and the guide block 1021, so that the upper and lower clamping plates 102 and 106 always move along the supporting guide plate 101 when being adjusted by the movement driving component, thereby increasing the stability of the fixing device.
Referring to fig. 1, 2 and 3, the movement driving assembly includes:
the rotating motor 51 is fixedly arranged in the connecting port 1011, and the output end of the rotating motor 51 is provided with a third bevel gear 55;
one end of the gear sleeve 107 is nested at the connecting port 1011, the outer wall of the gear sleeve 107 is provided with a gear-shaped structure, the inner wall is annularly provided with a plurality of gear grooves 1071 which play a role of gear transmission, and the third bevel gear 55 is meshed with the plurality of gear grooves 1071;
locate the transmission structure of gear cover 107 one side, transmission structure includes:
referring to fig. 4, a driving screw 103 having one end provided with a fourth bevel gear 1031; the transmission screw 103 is horizontally arranged on the supporting guide plate 101; the fourth bevel gear 1031 is engaged with the gear sleeve 107;
preferably, the support guide plate 101 is provided with a screw fixing sleeve 1012 for fixing the position of the transmission screw 103; the transmission screw 103 is provided with a screw positioning groove 1032 corresponding to the screw fixing sleeve 1012, and the screw fixing sleeve 1012 is sleeved in the screw positioning groove 1032. The drive screw 103 is supported by the screw fixing sleeve 1012, and the drive screw 103 is positioned along the axial direction of the drive screw.
A clamp plate driving sleeve 104 screwed to the drive screw 103;
two connecting rods 105 symmetrically arranged at the upper side and the lower side of the clamping plate driving sleeve 104; one ends of the two connecting rods 105 are hinged to the clamping plate driving sleeve 104; the other end of one of the connecting rods 105 is hinged to the upper clamp plate 102, and the other end of the other connecting rod 105 is hinged to the lower clamp plate 106.
Referring to fig. 1, preferably, the two sets of transmission structures are symmetrically arranged on the left and right sides of the gear sleeve 107, and the two sets of transmission structures are arranged to balance the driving forces of the upper clamp plate 102 and the lower clamp plate 106, so as to increase the clamping effect and achieve more stable clamping.
When clamping the radiator core is achieved by shortening the distance between the upper clamp plate 102 and the lower clamp plate 106;
rotate motor 51 and open, it drives to rotate motor 51 gear sleeve 107 rotates, gear sleeve 107 passes through gear structure and drives drive screw 103, under the driven effect of screw thread, splint drive sleeve 104 can along drive screw 103's axis direction is toward being close to gear sleeve 107's direction removes, removes splint drive sleeve 104 drives through connecting rod 105 the distance reduces between punch holder 102 and the lower plate 106, through punch holder 102 and lower plate 106 realize the fixed clamp of the upper and lower both ends face to the radiator core.
After the detection is finished, the heat dissipation core body is unclamped by increasing the distance between the upper clamping plate 102 and the lower clamping plate 106;
rotate motor 51 and open, it drives to rotate motor 51 gear sleeve 107 rotates, gear sleeve 107 can drive through gear structure drive lead screw 103, under screw drive's effect, splint drive sleeve 104 can be along drive lead screw 103's axis direction is toward keeping away from gear sleeve 107's direction removes, removes splint drive sleeve 104 drives through connecting rod 105 distance increase between punch holder 102 and the lower plate 106, afterwards, takes off the radiator core that finishes that will detect from clamping device.
Referring to fig. 5, a plugging head mounting seat 108 is sleeved at one end of the gear sleeve 107, and a fixing rod 1081 for fixing the position of the plugging head mounting seat 108 is arranged on the outer wall of the plugging head mounting seat 108; one end of the fixed rod 1081 is fixedly connected with the plugging head mounting seat 108, and the other end of the fixed rod 1081 is fixedly connected with the supporting guide plate 101;
the blocking head mounting seat 108 is fixedly connected with a blocking head 200 for sealing the pipeline inlet of the radiator core body;
referring to fig. 6, the blocking head 200 includes:
referring to fig. 7, the core tube 1 is rotated, and one end thereof is a sealed end; the outer wall of the rotating core pipe 1 is provided with an inflation inlet 11, and the upper side and the lower side of the inflation inlet 11 are provided with first threads 12; a plurality of core pipe positioning blocks 14 are annularly arranged at one end of the rotating core pipe 1 far away from the sealing end; the rotating core tube 1 is driven to rotate by a core tube driving assembly 5.
Referring to fig. 8, the sealing sleeve 2 is rotated, and the inner wall of the sealing sleeve is provided with threads matched with the first threads 12; the rotary sealing sleeve 2 is screwed outside the rotary core pipe 1, and a first air guide port 21 is formed in the periphery of the rotary sealing sleeve 2; the first air guide port 21 is arranged corresponding to the inflation port 11;
referring to fig. 9, the airbag support sleeve 3 is sleeved outside the rotating seal sleeve 2, a second air guide opening 31 is formed in the outer wall of the airbag support sleeve 3, and the second air guide opening 31 is arranged corresponding to the first air guide opening 21; an annular air bag mounting groove 32 is formed in the upper position and the lower position of the second air guide opening 31 on the outer wall of the air bag support sleeve 3;
the air bag 7 is fixedly connected in the air bag mounting groove 32 by sealing edges; the fixing mode can adopt a welding mode.
Referring to fig. 11, preferably, a sealing oil layer 9 is filled between the rotating sealing sleeve 2 and the airbag support sleeve 3, the sealing effect between the rotating sealing sleeve 2 and the airbag support sleeve 3 is increased through the sealing oil layer 9, and meanwhile, the rotation of the rotating sealing sleeve 2 is not affected, so that the situation that the sealing effect of the rotating sealing sleeve 2 is poor due to the problem of workpiece surface precision between the rotating sealing sleeve 2 and the airbag support sleeve 3, the airbag 7 is further leaked, and the operation of the device is affected is avoided.
Referring to fig. 8 and 10, a sealing sleeve rotating and positioning assembly is arranged between the rotating sealing sleeve 2 and the air bag supporting sleeve 3;
the sealing sleeve rotating and positioning assembly comprises a plurality of sealing sleeve positioning blocks 22 annularly arranged on the outer wall of one end of the rotating sealing sleeve 2 and a fan-shaped angle limiting groove 35 arranged at one end of the air bag supporting sleeve 3; the seal sleeve positioning block 22 is mounted in the angle limiting groove 35; the seal sleeve positioning block 22 can slide in the angle limiting groove 35; the rotating angle of the rotating seal sleeve 2 is positioned by matching the seal sleeve positioning block 22 with the angle limiting groove 35; so that the rotary sealing sleeve 2 can only rotate a certain angle.
In this example, the device is in an initial state;
referring to fig. 13, 19 and 20, in the initial state, the air bag 7 is in a deflated state, and the inflation port 11, the first air guide port 21 and the second air guide port 31 are aligned.
The external air supply assembly starts to supply air, the pressurized air sequentially passes through the connecting port 1011 and the gear sleeve 107 of the fixing device body 100, then enters the air bag 7 through the rotating core tube 1, the inflation inlet 11, the first air guide port 21 and the second air guide port 31 of the plugging head 200, and the air bag 7 gradually starts to expand and is attached to the inner wall of the pipeline connecting port of the radiator core.
After the air bag 7 is expanded, the air bag 7 is tightly pressed and attached to the inner wall of the pipeline inlet of the radiator core, the air bag support sleeve 3 is fastened under the action of the expanded air bag 7, and the core tube driving assembly 5 starts to drive the rotating core tube 1 to rotate.
In the initial stage of the rotation of the rotating core tube 1, the rotating seal sleeve 2 and the rotating core tube 1 rotate synchronously due to the influence of the friction force between the threads.
Referring to fig. 21, the rotating gland 2 will stop rotating to a predetermined position under the action of the gland rotational positioning assembly. The rotary sealing sleeve 2 enters a sealing state, the first air guide port 21 and the second air guide port 31 cannot be overlapped in the state, and the outer wall of the rotary sealing sleeve 2 can seal the second air guide port 31, so that the gas in the air bag 7 cannot flow out.
Referring to fig. 15 and 21, the rotating core tube 1 continues to rotate, and because the rotating sealing sleeve 2 is limited and cannot rotate, the rotating core tube 1 axially moves under the action of the screw transmission of the first screw 12, and the rotating core tube 1 extends out of the end of the airbag support sleeve 3 until the inflation inlet 11 is completely exposed from the top of the airbag support sleeve 3, and the rotating core tube 1 stops rotating. The gas provided by the gas supply assembly flows into the interior of the radiator core body from the gas filling port 11, and further inflates the interior of the radiator core body to start leak detection.
Preferably, the width of the seal sleeve positioning block 22, the diameter of the first air guide opening 21 and the diameter of the second air guide opening 31 all account for 1/3 of the width of the arc-shaped inner edge of the angle limiting groove 35, so that the phenomenon that the air bag 7 leaks due to the fact that the first air guide opening 21 and the second air guide opening 31 are partially overlapped after the rotary seal sleeve 2 rotates and the rotary seal sleeve 2 cannot have a sealing effect is avoided.
In addition, the fan-shaped angle of the angle limiting groove 35 is 60-75 degrees, and the diameter of the first air guide opening 21 and the diameter of the second air guide opening 31 are limited, so that the angle limiting groove 35 is further limited, and the problem that the speed of air inlet and air outlet is slow and the working efficiency of the device is influenced due to the fact that the diameter of the first air guide opening 21 and the diameter of the second air guide opening 31 are too small is avoided.
Referring to fig. 12 and 13, when the first air guide opening 21 and the second air guide opening 31 coincide, the seal cartridge positioning block 22 is located at the right side of the angle limiting groove 35;
when the rotary sealing sleeve 2 seals the second gas guide opening 31, the rotary core tube 1 can drive the rotary sealing sleeve 2 to rotate, and the sealing sleeve positioning block 22 can move from the right side to the left side of the angle limiting groove 35;
referring to fig. 14 and 15, when the seal cartridge positioning block 22 is located at the left side of the angle limiting groove 35, the rotary seal cartridge 2 seals the second air guide opening 31.
Referring to fig. 6, preferably, an end cover 8 is disposed at one end of the angle limiting groove 35 of the air bag support sleeve 3, and the end cover 8 is used for axially positioning the rotating seal sleeve 2, so as to prevent the rotating seal sleeve 2 from axially dislocating in the air bag support sleeve 3, which causes axial dislocation of the first air guide port 21 and the second air guide port 31 and affects operation of the device.
The connecting shell 4 is internally provided with a cavity, and a core tube driving assembly 5 for driving the rotating core tube 1 to rotate is arranged in the connecting shell 4; an air inlet 41 is arranged on one side of the connecting shell 4; the connecting shell 4 can be fixedly connected to the plugging head mounting seat 108; the air inlet 41 communicates with a connection port 1011.
The core tube driving assembly 5 comprises:
referring to fig. 6 and 16, a driving sleeve 54 is sleeved on one end of the rotating core tube 1; the transmission sleeve 54 is rotatably mounted in the connecting shell 4; one end of the transmission sleeve 54 is provided with a connecting ring protrusion 543 for rotary connection, the connecting ring protrusion 543 is embedded in the inner wall of the cavity of the connection housing 4, and under the action of the connecting ring protrusion 543, the transmission sleeve 54 and the connection housing 4 only rotate relatively; a plurality of core tube positioning sliding grooves 541 are annularly arranged on the inner wall of the transmission sleeve 54, and the core tube positioning blocks 14 are slidably installed in the core tube positioning sliding grooves 541; a second bevel gear 53 is arranged outside the transmission sleeve 54;
a first bevel gear 52 mounted on an output end of the rotating motor 51; the second bevel gear 53 is mounted in meshing engagement with the first bevel gear 52.
When the rotating core tube 1 is driven to rotate, the rotating motor 51 is started, the rotating motor 51 drives the transmission sleeve 54 to rotate, and the transmission sleeve 54 drives the rotating core tube 1 to rotate through the matching of the core tube positioning block 14 and the core tube positioning sliding groove 541.
When the rotating core tube 1 and the rotating seal sleeve 2 are in threaded transmission, so that the rotating core tube 1 axially moves, the core tube positioning block 14 slides in the core tube positioning sliding groove 541;
when the core tube positioning block 14 is located at the bottom end (the end close to the air inlet 41) of the core tube positioning chute 541, the air charging port 11, the first air guide port 21 and the second air guide port 31 are aligned;
when the core tube positioning block 14 is positioned at the top end (the end near the airbag 7) of the core tube positioning slide 541, the inflation port 11 is completely exposed from the top of the airbag support sleeve 3.
An air bag pressing component 6 is arranged between the air bag supporting sleeve 3 and the connecting shell 4, and the air bag 7 is appropriately pressed through the air bag pressing component 6, so that the expansion effect of the air bag 7 is increased, and the sealing effect of the air bag 7 is increased.
The airbag compression assembly 6 includes:
a second pressing plate 34 provided at one end of the airbag support housing 3;
referring to fig. 7, a second screw thread 13 provided on the outer wall of the rotating core tube 1; the second thread 13 is opposite to the first thread 12 in rotation direction;
referring to fig. 9, a guide sleeve 33 welded to one end of the air bag support case 3;
referring to fig. 17 and 18, one end of the compression sleeve 61 is provided with a first compression plate 611, and an outer wall of the compression sleeve 61, which is close to the first compression plate 611, is provided with an airbag fixing groove 612; the compression sleeve 61 is sleeved on the guide sleeve 33; threads matched with the second threads 13 are arranged on one side of the interior of the compression sleeve 61;
one end of the pressing sleeve 61 is screwed with the rotating core tube 1;
referring to fig. 22 and 6, the airbag 7 is fixedly connected to the airbag fixing groove 612 at a predetermined position of the outer wall;
a positioning boss 331 for rotationally positioning the compression sleeve 61 is arranged outside the guide sleeve 33; the hold-down sleeve 61 is positioned by the positioning protrusion 331 so that the hold-down sleeve 61 does not rotate relative to the guide sleeve 33.
When the inflated airbag 7 is properly compacted;
due to the fact that the rotation directions of the second threads 13 and the first threads 12 are opposite, the rotating core tube 1 which rotates drives the pressing sleeve 61 to move towards the direction of the air bag supporting sleeve 3 through thread transmission, the moving pressing sleeve 61 drives the second pressing plate 34 and the first pressing plate 611 to gradually approach, and the air bag 7 is properly pressed through the second pressing plate 34 and the first pressing plate 611 which approach each other.
Referring to fig. 19 and 24, in this example, the radiator core is placed between the upper clamp plate 102 and the lower clamp plate 106,
the device in the initial state is inserted into a pipeline connecting port of the radiator core body, and after the radiator core body is clamped by an external clamping device, an external air supply assembly is started.
Referring to fig. 20, the air supply assembly starts to inflate the air bag 7, and after the inflated air bag 7 is attached to the inner wall of the pipe connection port of the radiator core, the rotating motor 51 is started, and the rotating motor 51 drives the upper clamp plate 102 and the lower clamp plate 106 to clamp the radiator core and simultaneously drives the rotating core pipe 1 to rotate through the transmission sleeve 54.
Referring to fig. 21, the rotating core tube 1 rotates to drive the rotating sealing sleeve 2 to rotate, and the rotating sealing sleeve 2 rotates by a predetermined angle to seal the second gas guide opening 31, so that the gas inside the airbag 7 does not flow out.
The rotary sealing sleeve 2 which rotates for a preset angle can be limited and stopped rotating, and the rotary core tube 1 and the rotary sealing sleeve 2 are in threaded transmission. The rotating core tube 1 is rotated and moved in the axial direction. The core tube positioning block 14 moves in the core tube positioning sliding groove 541, when the core tube positioning block 14 moves the top of the core tube positioning sliding groove 541, the inflation port 11 is completely exposed from the top of the airbag support sleeve 3, the rotating core tube 1 moves to the limit position, and the rotating motor 51 stops rotating.
The air supply assembly starts to charge air into the radiator core through the air charging port 11, and at the moment, the radiator core is placed into water to start leak detection.
Referring to fig. 20, the rotated core tube 1 drives the pressing sleeve 61 to move through the screw transmission, and the airbag 7 is properly pressed by the second pressing plate 34 and the first pressing plate 611.
After the leak detection of the radiator core is finished, the radiator core is taken out of water, the rotating motor 51 rotates reversely, the rotating motor 51 drives the rotating core pipe 1 to rotate reversely, one end provided with the inflation inlet 11 retracts into the airbag supporting sleeve 3, meanwhile, the pressing sleeve 61 moves in the direction away from the airbag supporting sleeve 3, and the second pressing plate 34 and the first pressing plate 611 are gradually kept away from each other. When the core tube positioning block 14 moves to the bottom end (the end close to the air inlet 41) of the core tube positioning chute 541, the air charging port 11, the first air guide port 21 and the second air guide port 31 are aligned, the rotation motor 51 stops rotating, and the apparatus returns to the initial state.
Rotating the motor 51 also drives the upper clamp plate 102 and the lower clamp plate 106 to unclamp the radiator core.
When the rotating motor 51 stops driving, the air supply assembly starts generating back pressure suction. The bladder 7 is put into a deflated condition and the radiator core is subsequently removed from the tooling.
It is further explained that the air supply assembly in the invention comprises an air pump capable of adjusting air pressure and an air pipe serving as an air path; and one end of the air pipe is connected with the air pump, and the other end of the air pipe is connected with the connecting port 1011.
In summary, the invention provides a leak detection tool for a radiator core, which comprises a rotating core pipe, wherein one end of the rotating core pipe is a sealing end; an inflation inlet is formed in the periphery of the rotating core pipe, and first threads are formed in the upper side and the lower side of the outer wall of the rotating core pipe, which are positioned at the inflation inlet; a plurality of core pipe positioning blocks are annularly arranged at one end of the rotating core pipe, which is far away from the sealing end; the inner wall of the rotary sealing sleeve is provided with a thread matched with the first thread; the rotary sealing sleeve is in threaded connection with the outside of the rotary core pipe, and a first air guide port is formed in the periphery of the rotary sealing sleeve; the first air guide port is arranged corresponding to the inflation port; the air bag supporting sleeve is sleeved outside the rotary sealing sleeve, a second air guide port is formed in the outer wall of the air bag supporting sleeve, and the second air guide port is arranged corresponding to the first air guide port; an air bag mounting groove is formed in the outer wall of the air bag support sleeve at the upper position and the lower position of the second air guide port; the edge of the air bag is fixedly connected in the air bag mounting groove; the connecting shell is internally provided with a cavity, and a core tube driving assembly for driving the rotating core tube to rotate is arranged in the connecting shell; an air inlet is formed in one side of the connecting shell; the air inlet is connected with an air supply assembly. The invention can seal the pipeline inlet of the radiator core body with smaller diameter, and the air bag which is shriveled is deeply inserted into the pipeline inlet, and then the air bag and the inner part of the radiator core body are sequentially inflated, so that the device has good sealing effect and compact structure.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (5)
1. A leak detection tool for a radiator core is characterized by comprising a fixing device body and a plugging head;
the fixing device body includes:
the middle part of the supporting guide plate is provided with a connecting port; the connecting port is connected with an air supply assembly;
the distance between the upper clamping plate and the lower clamping plate is adjustable, and the upper clamping plate and the lower clamping plate are adjusted under the driving action of a moving driving assembly;
the mobile driving component comprises a rotating motor fixedly arranged in the connecting port;
the plugging head is arranged at the connecting port; the air supply assembly inflates the interior of the radiator core body through the plugging head;
the air supply assembly can drive the plugging head to seal the pipeline inlet of the radiator core body;
when the rotating motor rotates forwards, the distance between the upper clamping plate and the lower clamping plate is reduced;
when the rotating motor rotates reversely, the distance between the upper clamping plate and the lower clamping plate is increased;
the movement drive assembly further includes:
a third bevel gear installed at an output end of the rotating motor;
the gear sleeve is nested at the connecting port, the outer wall of the gear sleeve is provided with a gear-shaped structure, the inner wall of the gear sleeve is annularly provided with a plurality of gear grooves which play a gear transmission role, and the third bevel gear is meshed with the plurality of gear grooves;
locate the transmission structure of gear cover one side, transmission structure includes:
one end of the transmission screw rod is provided with a fourth bevel gear; the transmission screw rod is horizontally arranged on the supporting guide plate; the fourth bevel gear is meshed with a gear-shaped structure on the outer wall of the gear sleeve;
the clamping plate driving sleeve is screwed with the transmission screw rod;
the two connecting rods are symmetrically arranged on the upper side and the lower side of the splint driving sleeve; one ends of the two connecting rods are hinged to the clamping plate driving sleeve; the other end of one of the connecting rods is hinged to the upper clamping plate, and the other end of the other connecting rod is hinged to the lower clamping plate;
the plugging head mounting seat is arranged between the gear sleeve and the plugging head; the blocking head mounting seat is nested at one end of the gear sleeve, and a fixing rod for fixing the position of the blocking head mounting seat is arranged on the outer wall of the blocking head mounting seat; one end of the fixed rod is fixedly connected with the plugging head mounting seat, and the other end of the fixed rod is fixedly connected with the supporting guide plate;
the blocking head is fixedly connected to the blocking head mounting seat;
the shutoff head includes:
one end of the rotating core pipe is a sealing end; the outer wall of the rotating core pipe is provided with an inflation inlet, and the outer wall of the rotating core pipe is provided with first threads at the upper side and the lower side of the inflation inlet; a plurality of core pipe positioning blocks are annularly arranged at one end of the rotating core pipe, which is far away from the sealing end;
the rotary sealing sleeve is screwed outside the rotary core pipe, and a first air guide port is formed in the outer wall of the rotary sealing sleeve; the first air guide port is arranged corresponding to the inflation port;
the air bag supporting sleeve is sleeved outside the rotary sealing sleeve, a second air guide port is formed in the outer wall of the air bag supporting sleeve, and the second air guide port is arranged corresponding to the first air guide port; an air bag mounting groove is formed in the outer wall of the air bag support sleeve at the upper position and the lower position of the second air guide port;
the sealed edge of the air bag is fixedly connected in the air bag mounting groove;
the connecting shell is internally provided with a cavity, and a core tube driving assembly for driving the rotating core tube to rotate is arranged in the connecting shell; an air inlet is formed in one side of the connecting shell; the air inlet is communicated with the connecting port;
a sealing sleeve rotating and positioning assembly used for limiting the rotating angle of the rotating sealing sleeve is arranged between the rotating sealing sleeve and the air bag supporting sleeve;
after the rotary sealing sleeve rotates for a preset angle, the rotary sealing sleeve plugs the second air guide port;
the core tube driving assembly comprises:
the transmission sleeve is sleeved with one end of the rotating core pipe; the transmission sleeve is rotatably arranged in the connecting shell; a plurality of core pipe positioning sliding grooves are annularly formed in the inner wall of the transmission sleeve, and the core pipe positioning blocks are slidably mounted in the core pipe positioning sliding grooves; a second bevel gear is arranged outside the transmission sleeve;
a first bevel gear installed at an output end of the rotating motor; the second bevel gear is meshed with the first bevel gear;
when the core tube positioning block is positioned at the bottom end of the core tube positioning sliding chute, the bottom end is the end close to the air inlet, and the positions of the inflation inlet, the first air guide opening and the second air guide opening are aligned;
when the core tube positioning block is positioned at the top end of the core tube positioning sliding groove, the top end is close to one end of the air bag, and the inflation port is completely exposed from the top of the air bag supporting sleeve.
2. The radiator core leak detection tool according to claim 1, wherein the seal sleeve rotational positioning assembly comprises a plurality of seal sleeve positioning blocks annularly arranged on the outer wall of one end of the rotational seal sleeve and a fan-shaped angle limiting groove arranged at one end of the air bag support sleeve; the seal sleeve positioning block is movably mounted in the angle limiting groove.
3. The heat sink core leak detection tool according to claim 2, wherein the width of the seal boot positioning block, the diameter of the first air guide opening and the diameter of the second air guide opening all account for 1/3 of the width of the arc-shaped inner edge of the angle limiting groove.
4. The radiator core leak detection tool according to claim 3, wherein the fan-shaped angle of the angle limiting groove is 60-75 °.
5. The radiator core leak detection tool according to claim 1, wherein an air bag compression assembly is arranged between the air bag support sleeve and the connecting shell;
the airbag compression assembly includes:
the second compression plate is arranged at one end of the air bag support sleeve;
the second screw thread is arranged on the outer wall of the rotating core pipe; the second thread is opposite to the first thread in rotation direction;
a guide sleeve welded to one end of the air bag support sleeve;
one end of the compression sleeve is provided with a first compression plate, and one end, close to the first compression plate, of the outer wall of the compression sleeve is provided with an air bag fixing groove; the compression sleeve is sleeved on the guide sleeve; threads matched with the second threads are arranged on one side of the interior of the compression sleeve;
the compression sleeve is in threaded connection with the rotating core pipe;
the preset position of the outer wall of the air bag is fixedly connected with the air bag fixing groove;
and a positioning bulge for rotationally positioning the compression sleeve is arranged outside the compression sleeve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111251806.4A CN113700969B (en) | 2021-10-27 | 2021-10-27 | Radiator core leak hunting frock |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111251806.4A CN113700969B (en) | 2021-10-27 | 2021-10-27 | Radiator core leak hunting frock |
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| CN113700969B true CN113700969B (en) | 2022-02-15 |
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| CN213148250U (en) * | 2020-10-23 | 2021-05-07 | 天合联创设计有限公司 | Wall body detection device based on architectural design |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113414732B (en) * | 2021-08-25 | 2021-11-05 | 山东中茂散热器有限公司 | Positioning tool for assembling radiator core |
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| US5557966A (en) * | 1993-07-06 | 1996-09-24 | Corry; Kevin A. | Cooling system pressure testing device for leak detection |
| US5760296A (en) * | 1995-10-23 | 1998-06-02 | Abw Australia Pty. Ltd. | Cooling system pressure testing for leak detection |
| CN108562413A (en) * | 2018-06-13 | 2018-09-21 | 武汉金丰汽配有限公司 | A kind of air tightness of pipe fitting detection workbench |
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| CN113700969A (en) | 2021-11-26 |
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