Quick-connect hose for brake caliper seal testing

Abstract

A quick-connect tube for testing the seal of a brake caliper relates to the technical field of quick-connect tubes, comprising a plug-in housing, a side circular plate provided at the front through-hole of the plug-in housing, a rotating plug-in tube rotatably provided at the center of the side circular plate, and a fixed connecting tube fixedly provided at the rear through-hole of the plug-in housing; a rotating ring on the rotating plug-in tube, a fixed circular ring provided on the fixed connecting tube, a gear 1 provided on the rotating plug-in tube, a gear 2 meshing on the side of gear 1, and gear 2 fixedly provided on the rotating shaft of a motor; a sliding seat plate provided inside the plug-in housing, a sliding cylinder provided slidingly provided on the sliding seat plate, and sealing rings 1 and 2 provided on both sides of the sliding cylinder respectively; a hose connected to the end of the fixed connecting tube away from the fixed circular ring, and an air seat connected to the hose. The present invention aligns the thread of the rotating plug-in tube with the internal thread interface of the brake caliper, and the motor drives gear 2 to rotate, which transmits power through gear 1, causing the rotating plug-in tube to rotate on the side circular plate, that is, the rotating plug-in tube can be quickly screwed into the inlet of the brake caliper, and prevents the hose from being entangled and knotted.

Description

Technical Field

[0001] The present invention relates to the technical field of quick-connect tubes, and more particularly to a quick-connect tube for brake caliper sealing testing. Background Art

[0002] Existing brake calipers are primarily driven by pneumatic and hydraulic pressure. Pneumatic calipers typically have an internally threaded connector, while the corresponding connecting pipe uses an externally threaded connector. This connector is simply screwed into the internally threaded connector of the brake caliper, creating a connection between the two.

[0003] To improve test efficiency during the brake caliper sealing performance test, a quick connection between the external thread of the connecting pipe and the internal thread of the brake caliper is required. However, since the external threaded joints of the connecting pipe are mostly fixed, in actual operation, they are often connected by manual screwing. This operation method is not only inefficient, but also easily causes the connecting pipe to become tangled during the screwing process, seriously affecting the test process and operational safety. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a quick-connect tube for brake caliper sealing testing.

[0005] In order to solve the above technical problems, the present invention is realized through the following technical solutions: a quick-connect tube for brake caliper sealing test, comprising a plug shell, a front through hole and a rear through hole are provided on the plug shell, a side circular plate is provided at the front through hole of the plug shell, a rotary plug tube is rotatably provided at the center of the side circular plate, and a fixed connection tube coaxial with the rotary plug tube is fixed at the rear through hole of the plug shell; a rotary ring is provided on the end of the rotary plug tube facing the fixed connection tube, and a fixed ring is provided on the end of the fixed connection tube facing the rotary plug tube, and a gear 1 is provided on the rotary plug tube, and the side of the gear 1 is engaged with the side of the gear 1. There is gear 2, which is fixed on the rotating shaft of the motor, and the motor is fixed on the inner wall of the plug shell; a sliding seat plate is provided inside the plug shell, and a sliding cylinder is slidably provided on the sliding seat plate, and sealing ring 1 and sealing ring 2 are respectively provided on both sides of the slide cylinder, and sealing ring 1 is provided with sealing ring 1 in contact with the rotating ring, and sealing ring 2 is provided with sealing ring 2 in contact with the fixed ring, and a limit cover is provided on the side of the slide cylinder facing the side circular plate; the end of the connecting pipe away from the fixed ring is connected to a hose, and the hose is connected to an air seat.

[0006] As a preferred technical solution of the present invention, two sliding rods are slidably provided on the side circular plate, a round table is provided on the end of the sliding rod facing the slide cylinder, a pull rod coaxial with the sliding rod is provided on the round table, and the pull rod is slidably provided on the limit cover, and a pull table is provided at the end of the pull rod and inside the limit cover.

[0007] As a preferred technical solution of the present invention, a retaining ring in contact with the side circular plate is provided in the middle of the sliding rod, a spring 1 is provided on the outer sleeve of the sliding rod, and the two ends of the spring 1 are respectively connected to the side circular plate and the truncated table, a slip ring is provided on the pull rod, and a spring 2 is provided on the outer sleeve of the pull rod, and the two ends of the spring 2 are respectively connected to the slip ring and the limit cover.

[0008] As a preferred technical solution of the present invention, a sliding rod is provided on the inner side wall of the plug shell and on the sides of the two sliding rods. A sliding plate is provided on the sliding rod for sliding. A spring three is provided on the sliding rod. The two ends of the spring three are respectively connected to the sliding plate and the sliding rod. A wedge is provided at one end of the sliding plate, and a lever contacting the corresponding wedge is provided on the circular table. A limit block is provided at the other end of the sliding plate, and a limit hole for inserting the limit block into is provided on the limit cover.

[0009] As a preferred technical solution of the present invention, three connecting columns are provided on the fixed ring, and the ends of the three connecting columns are jointly provided with a middle sealing disk in contact with the second sealing ring. The end face of the slide away from the second sealing ring is provided with a sealing cover in contact with the fixed ring.

[0010] As a preferred technical solution of the present invention, the second sealing ring is provided with a third sealing ring for contacting the middle sealing disk, and the sealing cover is provided with a fourth sealing ring for contacting the fixed ring.

[0011] As a preferred technical solution of the present invention, a pressure block is provided on the outer side of the sealing cover, and a slope is provided on the pressure block. A side hole is provided on the outer side wall of the plug shell, and a swivel seat is also provided on the outer side wall of the plug shell. A handle is rotatably provided on the swivel seat, and an arc sliding rod for driving the pressure block is provided below the handle. The center of the arc sliding rod coincides with the center of rotation of the handle, and the arc sliding rod extends into the interior of the plug shell from the side hole. The outer side of the arc sliding rod is sleeved with an arc-shaped cylinder, and the lower side of the arc-shaped cylinder is provided on the outer side wall of the plug shell. The outer side of the arc sliding rod is sleeved with an arc-shaped spring, and the arc-shaped spring is located inside the arc-shaped cylinder, and the two ends of the arc spring are respectively connected to the outer side wall of the plug shell and the arc sliding rod.

[0012] As a preferred technical solution of the present invention, a square cavity is provided inside the rotary cannula, a baffle core is rotatably provided in the square cavity, and the rotating shaft of the baffle core extends to the outside of the rotary cannula, the rotating shaft of the baffle core is fixedly connected to one end of connecting rod one, the other end of connecting rod one is hinged to one end of connecting rod two, and the other end of connecting rod two is hinged to a semicircular ring, and the semicircular rings are jointly connected to two circular platforms.

[0013] Compared with the prior art, the present invention has the following advantages: (1) the present invention aligns the thread of the rotary cannula with the internal thread interface of the brake caliper, starts the motor, and the motor drives the gear 2 to rotate, which transmits power through the gear 1, so that the rotary cannula rotates on the side circular plate, that is, the rotary cannula can be quickly screwed into the inlet of the brake caliper, and the hose is prevented from being entangled and knotted. During this process, the sealing ring 1 does not contact the rotating ring, and the sealing ring 1 does not contact the rotating ring. Therefore, when the rotary cannula rotates synchronously with the rotating ring, the rotating ring and the sealing ring 1 do not contact each other, thereby avoiding wear of the sealing ring 1.

[0014] (2) When the screw-in tube of the present invention is not screwed into the internal threaded interface of the brake caliper, the sealing ring 2 contacts the middle sealing disk, and the sealing ring 3 is compressed, so that the sealing ring 2 and the middle sealing disk are tightly sealed; the sealing cover contacts the fixed ring, and the sealing ring 4 is compressed, so that the sealing cover and the fixed ring are tightly sealed, so the airflow in the fixed tube will be blocked, and the airflow in the fixed tube will be automatically closed to avoid waste.

[0015] (3) When the rotary insert of the present invention is screwed into the internal threaded interface of the brake caliper, the end of the sliding rod contacts the circular surface at the entrance of the brake caliper, causing the sliding rod to slide toward the inside of the side circular plate. The sliding rod moves synchronously with the circular table, and the circular table contacts the sliding ring, and the spring 2 begins to compress; at the same time, the shift rod contacts the inclined surface of the wedge block, and the shift rod drives the wedge block and the slide plate to move outward. Even if the limit block is separated from the limit hole, the compressed spring 2 provides elastic force to drive the limit cover and the slide cylinder to automatically and instantly move to the right position. After the slide cylinder moves to the right position, the sealing ring 1 contacts the rotating ring, and the sealing ring 2 contacts the fixed ring. The sealing ring 1 is compressed, so that the sealing ring 1 and the rotating ring are tightly sealed; the sealing ring 2 is compressed, so that the sealing ring 2 and the fixed ring are tightly sealed. Therefore, the airflow flows out from the middle hole of the fixed tube, passes through the inside of the slide cylinder, enters the inside of the rotary insert, and finally flows into the brake caliper.

[0016] (4) When the rotary insert of the present invention is not screwed into the internal threaded interface of the brake caliper, that is, the retaining ring on the sliding rod contacts the side circular plate, the sliding rod with the truncated cone and the semicircular ring is in the left position, at this time, the plane of the retaining core is perpendicular to the axis of the rotary insert, and the retaining core blocks the square cavity to prevent impurities from entering the interior of the plug shell from the through hole of the rotary insert; when the rotary insert is screwed into the internal threaded interface of the brake caliper, the semicircular ring is in the right position, and power is transmitted through the connecting rod 2 and the connecting rod 1, so that the retaining core rotates ninety degrees, that is, at this time, the side of the retaining core is parallel to the axis of the rotary insert, and the air flow passes smoothly through the center hole of the rotary insert. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0018] Figure 2 This is a schematic diagram of the structure of the present invention installed on a brake caliper.

[0019] Figure 3It is a schematic structural diagram of the entire plug housing of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the internal cross-section of the plug housing when the slide cylinder of the present invention is displaced to the right position.

[0021] Figure 5 It is a structural schematic diagram of the internal cross-section of the plug housing when the slide cylinder of the present invention is displaced to the left.

[0022] Figure 6 It is a structural schematic diagram of the front through hole of the plug-in shell of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the rear through hole of the plug-in shell of the present invention.

[0024] Figure 8 This is a structural diagram of the installation of the slide plate of the present invention.

[0025] Figure 9 This is a schematic diagram of the structure inside the slide when the slide is displaced to the right.

[0026] Figure 10 This is a schematic diagram of the structure inside the slide when the slide is displaced to the left.

[0027] Figure 11 for Figure 9 A partial enlarged view of point A in the middle.

[0028] Figure 12 It is a structural schematic diagram of the sealing disk installation in the present invention.

[0029] Figure 13 This is a schematic diagram of the structure of the pressure block and the arc slide rod in the present invention.

[0030] Figure 14 This is a schematic structural diagram of the present invention in which the plane of the retaining core is parallel to the axis of the rotary cannula.

[0031] Figure 15 This is a schematic structural diagram of the present invention in which the plane of the retaining core is perpendicular to the axis of the rotary cannula.

[0032] Reference numerals: 1-insert housing; 101-front through hole; 102-rear through hole; 103-side hole; 2-side circular plate; 3-rotating cannula; 301-square cavity; 4-fixed connecting tube; 5-rotating ring; 6-fixed ring; 7-gear 1; 8-gear 2; 9-motor; 10-sliding seat plate; 11-sliding cylinder; 1101-sealing ring 1; 1102-sealing ring 2; 12-sealing ring 1; 13-sealing ring 2; 14-limiting cover; 1401-limiting hole; 15-hose; 16-air seat; 17-sliding rod; 18-round table; 19-pull rod; 20-pull table; 21-blocking ring; 22-spring one; 23-spring two; 24-slip ring; 25-slide rod; 26-slide plate; 27-spring three; 28-wedge block; 29-push rod; 30-limiting block; 31-connecting column; 32-middle sealing disk; 33-sealing cover; 34-sealing ring three; 35-sealing ring four; 36-pressing block; 37-swivel seat; 38-handle; 39-arc slide rod; 40-arc cylinder; 41-arc spring; 42-blocking core; 43-connecting rod one; 44-connecting rod two; 45-semicircular ring. DETAILED DESCRIPTION

[0033] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0034] Example 1: Please refer to Figure 1-15 Structural schematic diagram, the present invention provides the following technical solutions: a quick-connect tube for brake caliper sealing test, comprising a plug shell 1, a front through hole 101 and a rear through hole 102 provided on the plug shell 1, a side circular plate 2 provided at the front through hole 101 of the plug shell 1, a rotary plug tube 3 rotatably provided at the center of the side circular plate 2, a fixed connecting tube 4 coaxial with the rotary plug tube 3 is fixed at the rear through hole 102 of the plug shell 1; a rotary ring 5 is provided on the rotary plug tube 3 at the end facing the fixed connecting tube 4, a fixed ring 6 is provided on the fixed connecting tube 4 at the end facing the rotary plug tube 3, a gear 7 is provided on the rotary plug tube 3, a gear 2 8 is meshed with the side of the gear 1 7, the gear 2 8 is fixed on the rotating shaft of the motor 9, and the motor 9 is fixed on the inner side wall of the plug shell 1.

[0035] Specifically, a thread is provided on the rotary cannula 3. The thread of the rotary cannula 3 is aligned with the internal thread interface of the brake caliper, and the motor 9 is started. The motor 9 drives the gear 2 8 to rotate, and the power is transmitted through the gear 1 7 to make the rotary cannula 3 rotate on the side circular plate 2, that is, the rotary cannula 3 can be quickly screwed into the inlet of the brake caliper.

[0036] A sliding seat plate 10 is provided inside the plug shell 1, and a slide cylinder 11 is slidably provided on the sliding seat plate 10. A sealing ring 1101 and a sealing ring 2 1102 are respectively provided on both sides of the slide cylinder 11. A sealing ring 12 in contact with the rotating ring 5 is provided on the sealing ring 1101, and a sealing ring 2 13 in contact with the fixed ring 6 is provided on the sealing ring 2 1102. A limit cover 14 is provided on the side of the slide cylinder 11.

[0037] Specifically, when the rotary cannula 3 is not screwed into the internal threaded connection of the brake caliper, the slide cylinder 11 is in the left position, meaning that the sealing ring 1 1101 and the rotating ring 5 are not in contact, and the sealing ring 1 12 and the rotating ring 5 are also not in contact. Therefore, when the rotary cannula 3 rotates, the rotary cannula 3 rotates synchronously with the rotating ring 5, and the rotating ring 5 and the sealing ring 1 12 do not contact each other, thus preventing wear of the sealing ring 1 12. When the rotary cannula 3 is screwed into the internal threaded connection of the brake caliper, the slide cylinder 11 moves to the right position, meaning that the sealing ring 1 1101 contacts the rotating ring 5, and the sealing ring 2 1102 contacts the fixed ring 6. The sealing ring 12 compresses, ensuring a tight seal between the sealing ring 1 1101 and the rotating ring 5; the sealing ring 2 13 compresses, ensuring a tight seal between the sealing ring 2 1102 and the fixed ring 6. Air flows out of the center hole of the fixed connection tube 4, passes through the interior of the slide cylinder 11, enters the interior of the rotary cannula 3, and ultimately flows into the brake caliper.

[0038] The end of the connecting pipe 4 away from the fixed ring 6 is connected to a hose 15, and the hose 15 is connected to an air seat 16. Specifically, the air seat 16 is connected to the test air source, and the air flow in the air source flows into the connecting pipe 4 through the air seat 16 and the hose 15.

[0039] Two sliding rods 17 are slidably provided on the side circular plate 2, and a round table 18 is provided on the end of the sliding rod 17 facing the slide cylinder 11, and a pull rod 19 coaxial with the sliding rod 17 is provided on the round table 18, and the pull rod 19 is slidably provided on the limit cover 14, and a pull table 20 is provided at the end of the pull rod 19 and located inside the limit cover 14; a retaining ring 21 in contact with the side circular plate 2 is provided in the middle of the sliding rod 17, and a spring 22 is provided on the outer sleeve of the sliding rod 17, and the two ends of the spring 22 are respectively connected to the side circular plate 2 and the round table 18, a slip ring 24 is slidably provided on the pull rod 19, and a spring 23 is provided on the outer sleeve of the pull rod 19, and the two ends of the spring 23 are respectively connected to the slip ring 24 and the limit cover 14.

[0040] A slide bar 25 is provided on the inner side wall of the plug housing 1 and on the sides of the two slide rods 17. A slide plate 26 is slidably provided on the slide bar 25. A spring three 27 is sleeved on the slide bar 25. The two ends of the spring three 27 are respectively connected to the slide plate 26 and the slide bar 25. A wedge block 28 is provided at one end of the slide plate 26, and a lever 29 that contacts the corresponding wedge block 28 is provided on the round table 18. A limit block 30 is provided at the other end of the slide plate 26. The limit cover 14 is provided with a limit hole 1401 for the limit block 30 to be inserted into.

[0041] Specifically, when the rotary insert 3 is not screwed into the internal threaded interface of the brake caliper, spring one 22 provides a pulling force to make the retaining ring 21 on the sliding rod 17 contact with the side circular plate 2, the circular table 18 is separated from the sliding ring 24, the spring two 23 is at its original length, and the pulling table 20 contacts the inner surface of the limit cover 14, so that the limit cover 14 and the slide cylinder 11 are in the left position; at this time, the shift rod 29 and the wedge block 28 are in a separated state, and the spring three 27 provides an elastic force to make the slide plate 26 close to the limit cover 14, even if the limit block 30 is inserted into the limit hole 1401.

[0042] When the rotary insert 3 is screwed into the internal threaded interface of the brake caliper, the end of the sliding rod 17 contacts the circular surface at the entrance of the brake caliper, causing the sliding rod 17 to slide toward the inside of the side circular plate 2, and the sliding rod 17 moves synchronously with the round table 18. The round table 18 contacts the slip ring 24, and the spring 23 begins to compress; at the same time, the shift rod 29 contacts the inclined surface of the wedge block 28, and the shift rod 29 drives the wedge block 28 and the slide plate 26 to move outward. Even if the limit block 30 is separated from the limit hole 1401, the compressed spring 23 provides elasticity, driving the limit cover 14 and the slide cylinder 11 to move to the right position instantly.

[0043] When the rotary insert 3 is separated from the internal thread interface of the brake caliper again, spring 1 22 provides a pulling force to make the retaining ring 21 contact the side circular plate 2 again, and the pulling platform 20 pulls the limit cover 14 and the slide cylinder 11 to move back to the left position, that is, the limit hole 1401 coincides with the limit block 30, and spring three 27 provides a pulling force to reinsert the limit block 30 into the limit hole 1401.

[0044] Considering that when the rotary cannula 3 is separated from the brake caliper, the airflow needs to be automatically shut off to avoid waste. The fixed ring 6 is provided with three connecting posts 31. The ends of the three connecting posts 31 are provided with a middle sealing disk 32 that contacts the second sealing ring 1102. The end surface of the slide 11 away from the second sealing ring 13 is provided with a sealing cover 33 that contacts the fixed ring 6.

[0045] The second sealing ring 1102 is provided with a third sealing ring 34 for contacting the middle sealing disk 32, and the sealing cover 33 is provided with a fourth sealing ring 35 for contacting the fixed ring 6.

[0046] Specifically, when the rotary insert 3 is separated from the brake caliper, that is, when the slide 11 moves to the left position, the sealing ring 2 1102 contacts the middle sealing disk 32, and the sealing ring 34 is compressed, so that the sealing ring 2 1102 and the middle sealing disk 32 are tightly sealed; the sealing cover 33 contacts the solid ring 6, and the sealing ring 4 35 is compressed, so that the sealing cover 33 and the solid ring 6 are tightly sealed, so the airflow in the solid connecting tube 4 will be blocked, and the middle airflow of the solid connecting tube 4 will be automatically closed to avoid waste.

[0047] Considering that when the rotary insert 3 is separated from the internal threaded interface of the brake caliper, the rotary insert 3 rotates synchronously with the rotating ring 5, and there will be friction loss between the sealing ring 12 and the rotating ring 5. A pressure block 36 is provided on the outer side of the sealing cover 33, and a slope is provided on the pressure block 36. A side hole 103 is provided on the outer side wall of the plug shell 1, and a swivel seat 37 is also provided on the outer side wall of the plug shell 1. A handle 38 is rotatably provided on the swivel seat 37, and an arc slide rod 39 for driving the pressure block 36 is provided below the handle 38. The center of the arc slide rod 39 coincides with the center of rotation of the handle 38, and the arc slide rod 39 extends into the interior of the plug shell 1 from the side hole 103. The outer sleeve of the arc slide rod 39 is provided with an arc-shaped cylinder 40, and the lower part of the arc-shaped cylinder 40 is provided on the outer side wall of the plug shell 1. The outer sleeve of the arc slide rod 39 is provided with an arc spring 41, and the arc spring 41 is located inside the arc cylinder 40. The two ends of the arc spring 41 are respectively connected to the outer side wall of the plug shell 1 and the arc slide rod 39.

[0048] Specifically, the handle 38 is manually grasped to rotate the handle 38 around the swivel seat 37, and the handle 38 rotates synchronously with the arc slide 39. The arc spring 41 is compressed, and the arc slide 39 is inserted into the interior of the plug shell 1. The lower end of the arc slide 39 contacts the inclined surface of the pressure block 36, driving the pressure block 36, the sealing cover 33 and the slide cylinder 11 to move to the left, even if the sealing ring 12 on the sealing ring 1101 is initially separated from the rotating ring 5, to avoid wear of the sealing ring 12.

[0049] The working principle of the quick-connect tube for brake caliper sealing test provided by the present invention is as follows: in the initial state, that is, when the screw-in tube 3 is not screwed into the internal threaded interface of the brake caliper, spring one 22 provides a pulling force to make the retaining ring 21 on the sliding rod 17 contact with the side circular plate 2, and the round table 18 is separated from the sliding ring 24. The spring two 23 is at its original length, and the pulling table 20 contacts the inner surface of the limit cover 14, so that the limit cover 14 and the slide cylinder 11 are in the left position; at this time, the shift rod 29 and the wedge block 28 are in a separated state, and the spring three 27 provides an elastic force to make the slide plate 26 close to the limit cover 14, even if the limit block 30 is inserted into the limit hole 1401. At the same time, the sealing ring 2 1102 contacts the middle sealing disk 32, and the sealing ring 34 is compressed, so that the sealing ring 2 1102 and the middle sealing disk 32 are tightly sealed; the sealing cover 33 contacts the solid ring 6, and the sealing ring 4 35 is compressed, so that the sealing cover 33 and the solid ring 6 are tightly sealed, so the airflow in the solid connecting tube 4 will be blocked, and the middle airflow of the solid connecting tube 4 will be automatically closed to avoid waste.

[0050] Manually grip the insert housing 1, align the threads of the rotary cannula 3 with the internal threaded connection of the brake caliper, and start the motor 9. Motor 9 drives gear 2 8, which transmits power through gear 1 7, causing the rotary cannula 3 to rotate on the side circular plate 2, allowing the rotary cannula 3 to be quickly screwed into the inlet of the brake caliper. During this process, because the slide cylinder 11 is in the left position, the sealing ring 1101 does not contact the rotating ring 5, and the sealing ring 12 does not contact the rotating ring 5. Therefore, when the rotary cannula 3 rotates, it rotates with the rotating ring 5 synchronously, and the rotating ring 5 does not contact the sealing ring 12, thus preventing wear of the sealing ring 12.

[0051] When the rotary cannula 3 is screwed into the internal threaded interface of the brake caliper, the end of the sliding rod 17 contacts the circular surface of the brake caliper interface, causing the sliding rod 17 to slide toward the inside of the side circular plate 2. The sliding rod 17 and the circular table 18 move synchronously. The circular table 18 contacts the slip ring 24, and the spring 23 begins to compress. At the same time, the shifting rod 29 contacts the inclined surface of the wedge block 28, driving the wedge block 28 and the slide plate 26 outward. Even if the limit block 30 separates from the limit hole 1401, the compressed spring 23 provides elastic force, driving the limit cover 14 and the slide cylinder 11 to move to the right position instantly. After the slide cylinder 11 moves to the right position, the sealing ring 1101 contacts the rotating ring 5, and the sealing ring 2102 contacts the fixed ring 6. The sealing ring 12 is compressed to make the sealing ring 1101 and the rotating ring 5 tightly sealed; the sealing ring 2 13 is compressed to make the sealing ring 2 1102 and the fixed ring 6 tightly sealed.

[0052] The air seat 16 is connected to the test air source, and the air in the air source flows into the fixed pipe 4 through the air seat 16 and the hose 15. The air flows out from the middle hole of the fixed pipe 4, passes through the inside of the slide cylinder 11, enters the inside of the rotary cannula 3, and finally flows into the brake caliper for sealing testing.

[0053] Manually grasp the handle 38 to rotate it around the swivel seat 37. The handle 38 rotates synchronously with the arc slide 39, the arc spring 41 is compressed, and the arc slide 39 is inserted into the interior of the plug housing 1. The lower end of the arc slide 39 contacts the inclined surface of the pressure block 36, driving the pressure block 36, the sealing cover 33 and the slide cylinder 11 to move to the left, even if the sealing ring 12 on the sealing ring 1101 is initially separated from the rotating ring 5, to avoid wear of the sealing ring 12. Start the motor 9 in reverse, and then transmit power through gear 2 8 and gear 1 7 to make the rotary cannula 3 rotate in the opposite direction, so that the rotary cannula 3 is gradually separated from the internal thread interface of the brake caliper. When the rotary cannula 3 is completely separated from the internal thread interface of the brake caliper, spring 1 22 provides tension to make the retaining ring 21 contact with the side circular plate 2 again, and the pulling platform 20 pulls the limit cover 14 and the slide cylinder 11 to move back to the left position, that is, the limit hole 1401 coincides with the limit block 30, and spring three 27 provides tension to make the limit block 30 reinsert into the limit hole 1401.

[0054] Example 2: Based on the specific example 1, the difference of this example is that a square cavity 301 is provided inside the rotary cannula 3, a stopper core 42 is rotatably provided in the square cavity 301, and the rotating shaft of the stopper core 42 extends to the outside of the rotary cannula 3, the rotating shaft of the stopper core 42 is fixedly connected to one end of the connecting rod 1 43, the other end of the connecting rod 1 43 is hinged to one end of the connecting rod 2 44, and the other end of the connecting rod 2 44 is hinged to the semicircular ring 45, and the semicircular ring 45 is jointly connected to the two frustums 18.

[0055] When the rotary cannula 3 is not screwed into the internal threaded interface of the brake caliper, that is, the retaining ring 21 on the sliding rod 17 contacts the side circular plate 2, the sliding rod 17 with the frustum 18 and the semicircular ring 45 is in the left position. At this time, the plane of the blocking core 42 is perpendicular to the axis of the rotary cannula 3, and the blocking core 42 blocks the square cavity 301 to prevent impurities from entering the interior of the plug shell 1 from the through hole of the rotary cannula 3; when the rotary cannula 3 is screwed into the internal threaded interface of the brake caliper, the semicircular ring 45 is in the right position, and power is transmitted through the connecting rod 2 44 and the connecting rod 1 43 to rotate the blocking core 42 ninety degrees. That is, at this time, the side of the blocking core 42 is parallel to the axis of the rotary cannula 3, and the airflow passes smoothly from the center hole of the rotary cannula 3.

[0056] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all included in the scope of protection of the present invention.

Claims

1. A quick-connect tube for brake caliper seal testing, comprising a plug housing (1), characterized in that: The plug shell (1) is provided with a front through hole (101) and a rear through hole (102); a side circular plate (2) is provided at the front through hole (101) of the plug shell (1); a rotary insert (3) is rotatably provided at the center of the side circular plate (2); a fixed connecting tube (4) coaxial with the rotary insert (3) is fixed at the rear through hole (102) of the plug shell (1); a rotary ring (5) is provided at the end of the rotary insert (3) facing the fixed connecting tube (4); a fixed ring (6) is provided at the end of the fixed connecting tube (4) facing the rotary insert (3); a gear 1 (7) is provided on the rotary insert (3); a gear 2 (8) is meshed with a side of the gear 1 (7); the gear 2 (8) is fixedly provided on the rotating shaft of the motor (9); and the motor (9) is fixedly provided on the inner side wall of the plug shell (1); The plug housing (1) is provided with a sliding seat plate (10) inside, and a sliding cylinder (11) is provided on the sliding seat plate (10) for sliding. A sealing ring 1 (1101) and a sealing ring 2 (1102) are provided on both sides of the sliding cylinder (11). A sealing ring 1 (12) in contact with the rotating ring (5) is provided on the sealing ring 1 (1101), and a sealing ring 2 (13) in contact with the fixed ring (6) is provided on the sealing ring 2 (1102). A limit cover (14) is provided on the side of the sliding cylinder (11) facing the side circular plate (2); When the rotary insert (3) is not screwed into the internal threaded interface of the brake caliper, the slide cylinder (11) is in the left position, the sealing ring 1 (1101) is not in contact with the rotary ring (5), and the sealing ring 2 (1102) is not in contact with the fixed ring (6); when the rotary insert (3) is screwed into the internal threaded interface of the brake caliper, the slide cylinder (11) moves to the right position, the sealing ring 1 (1101) is in contact with the rotary ring (5), and the sealing ring 2 (1102) is in contact with the fixed ring (6), so as to achieve a sealed connection; The end of the connecting pipe (4) away from the fixing ring (6) is connected to a hose (15), and the hose (15) is connected to an air seat (16).

2. The quick-connect tube for brake caliper seal testing according to claim 1, characterized in that: Two sliding rods (17) are slidably provided on the side circular plate (2), a round table (18) is provided on the end of the sliding rod (17) facing the slide cylinder (11), a pull rod (19) coaxial with the sliding rod (17) is provided on the round table (18), and the pull rod (19) is slidably provided on the limit cover (14), and a pull table (20) is provided at the end of the pull rod (19) and inside the limit cover (14).

3. The quick-connect tube for brake caliper seal testing according to claim 2, characterized in that: A retaining ring (21) in contact with the side circular plate (2) is provided in the middle of the sliding rod (17), a spring 1 (22) is provided on the outer sleeve of the sliding rod (17), and the two ends of the spring 1 (22) are respectively connected to the side circular plate (2) and the round table (18), a slip ring (24) is provided on the pull rod (19), and a spring 2 (23) is provided on the outer sleeve of the pull rod (19), and the two ends of the spring 2 (23) are respectively connected to the slip ring (24) and the limit cover (14).

4. The quick-connect tube for brake caliper seal testing according to claim 3, characterized in that: The inner side wall of the plug housing (1) and the sides of the two sliding rods (17) are both provided with sliding rods (25), a sliding plate (26) is slidably provided on the sliding rod (25), a spring three (27) is sleeved on the sliding rod (25), and the two ends of the spring three (27) are respectively connected to the sliding plate (26) and the sliding rod (25), one end of the sliding plate (26) is provided with a wedge block (28), and the round table (18) is provided with a lever (29) that contacts the corresponding wedge block (28), the other end of the sliding plate (26) is provided with a limit block (30), and the limit cover (14) is provided with a limit hole (1401) for the limit block (30) to be inserted into.

5. The quick-connect tube for brake caliper seal testing according to claim 4, characterized in that: The fixed circular ring (6) is provided with three connecting columns (31), and the ends of the three connecting columns (31) are commonly provided with a middle sealing disk (32) in contact with the second sealing circular ring (1102). The end surface of the slide cylinder (11) away from the second sealing ring (13) is provided with a sealing cover (33) in contact with the fixed circular ring (6).

6. The quick-connect tube for brake caliper seal testing according to claim 5, characterized in that: The second sealing ring (1102) is provided with a third sealing ring (34) for contacting the middle sealing disk (32), and the sealing cover (33) is provided with a fourth sealing ring (35) for contacting the fixed ring (6).

7. The quick-connect tube for brake caliper seal testing according to claim 6, characterized in that: The outer side surface of the sealing cover (33) is provided with a pressing block (36), and the pressing block (36) is provided with an inclined surface. The outer side wall of the plug shell (1) is provided with a side hole (103), and the outer side wall of the plug shell (1) is also provided with a rotating seat (37), and a handle (38) is rotatably provided on the rotating seat (37). An arc slide rod (39) for driving the pressing block (36) is provided below the handle (38), and the center of the arc slide rod (39) coincides with the center of the rotation of the handle (38). The arc slide rod (39) extends from the side hole (103) into the interior of the plug shell (1), the arc slide rod (39) is provided with an arc-shaped cylinder (40) on the outside, and the lower part of the arc-shaped cylinder (40) is provided on the outer side wall of the plug shell (1). The arc slide rod (39) is provided with an arc-shaped spring (41) on the outside, and the arc-shaped spring (41) is located inside the arc-shaped cylinder (40), and the two ends of the arc spring (41) are respectively connected to the outer side wall of the plug shell (1) and the arc slide rod (39).

8. The quick-connect tube for brake caliper seal testing according to claim 7, characterized in that: A square cavity (301) is provided inside the rotary cannula (3), a stopper core (42) is rotatably provided in the square cavity (301), and the rotation axis of the stopper core (42) extends to the outside of the rotary cannula (3), the rotation axis of the stopper core (42) is fixedly connected to one end of the first connecting rod (43), the other end of the first connecting rod (43) is hinged to one end of the second connecting rod (44), the other end of the second connecting rod (44) is hinged to the semicircular ring (45), and the semicircular ring (45) is jointly connected to the two truncated cones (18).

Images