Brake caliper sealing detection equipment

Abstract

The present invention relates to the technical field of sealing detection, and in particular to a brake caliper sealing detection device, which comprises a detection box and a detection member. During the process of inserting a plug-in tube into the oil port of a caliper, an adjusting member reduces the diameter of a spiral sleeve to avoid friction between the spiral sleeve and the threads of an inner wall of the caliper oil port during the process of inserting the plug-in tube into the oil port of the caliper, thereby reducing the probability of damage to the spiral sleeve. When the plug-in tube is fully inserted into the oil port of the caliper, the adjusting member increases the diameter of the spiral sleeve so that a spiral protrusion on the spiral sleeve engages with an internal thread of the caliper oil port. When the plug-in tube is fully inserted into the oil port of the caliper, an air supply source supplies air to the inside of the air supply pipe. At this time, the air pressure in the detection chamber increases, and the adjusting member further increases the diameter of the spiral sleeve. The spiral protrusion on the spiral sleeve squeezes the internal thread of the caliper oil port, thereby increasing the sealing of the plug-in tube and the caliper oil port, thereby improving the accuracy of the caliper sealing detection.

Description

Technical Field

[0001] The invention relates to the technical field of sealing detection, and in particular to a brake caliper sealing detection device. Background Art

[0002] In the manufacturing and quality inspection of brake calipers, sealing inspection is a key step to ensure its safe and reliable performance. The existing joints for brake caliper sealing inspection on the market have many defects. From the perspective of connection design, the existing joints mostly adopt a circumferential split design. When connected to the caliper oil port, they are in a state of partial contact. After long-term use, this partial contact will not only cause local wear of the caliper oil port, but also accelerate the wear of the connector joint; at the same time, the existing joints have discontinuous threads after installation, and the internal threads of the caliper oil port are easily damaged during the engagement of the joint and the caliper oil port, which seriously affects the overall quality and service life of the caliper. In addition, the existing joints mainly rely on sealing rings for sealing. However, in actual installation, the sealing rings are easily damaged. For example, improper installation techniques and inappropriate installation tools may damage the integrity of the sealing rings; and when the caliper oil port is in a high-pressure environment, the sealing rings are over-compressed, and the sealing effect is greatly reduced, which seriously affects the stability of the connection. Summary of the invention

[0003] The invention provides a brake caliper sealing detection device to solve the problem that the service life of the caliper is easily affected when the sealing of the caliper is detected in the prior art.

[0004] A brake caliper sealing detection device of the present invention adopts the following technical solution:

[0005] A brake caliper sealing detection device comprises a detection box and a detection member.

[0006] The detection box is hollow inside, and a support seat for supporting the caliper is arranged inside the detection box; the detection member includes a shell, a spiral sleeve and an adjusting member; a detection cavity is arranged inside the shell, and an air supply pipe connecting the external environment and the detection cavity is arranged on the shell; the end of the air supply pipe is connected to the air supply source; a plug-in pipe is arranged at one end of the shell, and the plug-in pipe is arranged coaxially with the shell, and the plug-in pipe connects the external environment and the detection cavity;

[0007] The spiral sleeve is arranged on the outside of the plug-in tube, and a spiral protrusion is arranged on the outer wall of the spiral sleeve. The diameter of the spiral sleeve can be changed, and the spiral protrusion can be engaged with the internal thread of the caliper oil port;

[0008] The adjusting member is used to reduce the diameter of the spiral sleeve when the plug-in tube is inserted into the caliper oil port; when the plug-in tube is inserted into the caliper oil port, the adjusting member increases the diameter of the spiral sleeve; when the air pressure in the detection chamber increases, the adjusting member further increases the diameter of the spiral sleeve.

[0009] Furthermore, the spiral sleeve is spring-like in shape, and is coaxially sleeved on the outside of the plug-in tube. A sealing ring is fixedly provided at the lower end of the spiral sleeve, and the sealing ring is fixedly connected to the plug-in tube. When the upper end of the spiral sleeve rotates, the diameter of the spiral sleeve can change.

[0010] Furthermore, the spiral sleeve has reinforcing ribs inside, the reinforcing ribs are arranged in a spiral shape, the pitch of the reinforcing ribs is the same as the pitch of the spiral sleeve; the hardness of the reinforcing ribs is greater than the hardness of the spiral sleeve.

[0011] Furthermore, the adjusting member includes a handle, a rotating rod and a transmission member, the rotating rod is rotatably arranged in the detection chamber, the rotating rod is coaxial with the plug-in tube, and the rotating rod extends to the outside of the plug-in tube; a bending rod is connected to the rotating rod, and the bending rod is vertically slidably connected to the upper end of the spiral sleeve; the handle is rotatably connected to the outer shell, and the transmission member is arranged between the handle and the rotating rod. When the handle rotates, the rotating rod rotates around its own axis through the transmission of the transmission member.

[0012] Furthermore, an extrusion ring is provided on the plug-in tube, and the extrusion ring is slidably connected to the bending rod. The inner wall of the extrusion ring is provided with a spiral groove, and the outer wall of the plug-in tube is fixedly provided with a spiral block, and the spiral block is slidably provided in the spiral groove, and the extrusion ring can extrude the spiral sleeve.

[0013] Further, the transmission member includes a transmission ring, a transmission screw, a transmission nut and a push rod; the push rod is coaxially slidably arranged in the detection cavity, and when the handle rotates, the push rod slides up and down in the detection cavity; the transmission nut is coaxially slidably arranged in the detection cavity, and the push rod can push the transmission nut; the transmission ring is coaxially rotatably arranged in the detection cavity, the transmission ring is coaxially fixedly connected to the rotating rod, the transmission screw is coaxially fixedly connected to the transmission ring, and the transmission nut is threadedly connected to the transmission screw.

[0014] Furthermore, the grip includes a handle and a swing rod, one end of the swing rod is fixedly connected to the handle, a fixed angle is formed between the handle and the swing rod, and the other end of the swing rod is rotatably connected to the shell, and the handle can fit the outer wall of the shell.

[0015] Furthermore, the transmission member also includes a connecting rod, a limit rod and a limit ring, the limit ring is fixedly connected to the detection chamber; the push rod is slidably connected to the limit ring; one end of the connecting rod is rotationally connected to the lower end of the push rod, and the other end of the connecting rod is rotationally connected to the middle part of the swing rod; the limit rod is fixedly arranged on the outer shell, and the limit rod is slidably connected to the transmission nut.

[0016] Furthermore, the adjusting member also includes a buffer pad; the limiting ring can separate the detection chamber into a first chamber and a second chamber that are isolated from each other, the air supply pipe is connected to the first chamber, and the buffer pad is arranged in the first chamber. When the air pressure in the first chamber increases, the buffer pad is deformed.

[0017] Furthermore, a sealing piston is fixedly arranged on the transmission nut, and the sealing piston is coaxially slidably arranged in the first chamber. The sealing piston can abut against the buffer pad, and the buffer pad is fixedly connected to the limiting ring.

[0018] The beneficial effects of the present invention are as follows: a brake caliper sealing detection device of the present invention comprises a detection box and a detection member, when the caliper is subjected to sealing detection, the caliper to be detected is placed on a support seat inside the detection box, and the air supply pipe is connected to the air supply source, at which time the air supply source does not supply air to the inside of the air supply pipe, and then the outer shell is held close to the oil port of the caliper so that the plug-in tube is inserted into the oil port of the caliper, during which the adjusting member reduces the diameter of the spiral sleeve to avoid friction between the spiral sleeve and the threads of the inner wall of the caliper oil port during the insertion of the plug-in tube into the caliper oil port, thereby reducing the probability of damage to the spiral sleeve, and when the plug-in tube is fully inserted into the caliper oil port, the adjusting member increases the diameter of the spiral sleeve so that the spiral protrusion on the spiral sleeve engages with the internal thread of the caliper oil port, at which time the spiral protrusion arranged on the spiral sleeve is a complete and continuous structure, thereby reducing damage to the internal thread of the caliper oil port. Furthermore, when the plug-in tube is fully inserted into the caliper oil port, the air supply source supplies air to the inside of the air supply tube. At this time, the air pressure in the detection chamber increases, and the adjusting part further increases the diameter of the spiral sleeve. The spiral protrusion on the spiral sleeve squeezes the internal thread of the caliper oil port, thereby increasing the sealing of the plug-in tube and the caliper oil port, and improving the accuracy of the caliper sealing detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1A schematic structural diagram of a brake caliper sealing detection device provided by an embodiment of the present invention;

[0021] Figure 2 A schematic structural diagram of a detection component in a brake caliper sealing detection device provided by an embodiment of the present invention;

[0022] Figure 3 A schematic structural diagram of a cutaway detection component in a brake caliper sealing detection device provided by an embodiment of the present invention;

[0023] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0024] Figure 5 for Figure 3 A partial enlarged view of point B in the middle;

[0025] Figure 6 for Figure 3 A partial enlarged view of point C in the middle;

[0026] Figure 7 for Figure 4 A partial enlarged view of point D in the middle.

[0027] In the figure: 110, detection box; 111, detection chamber; 112, support seat; 120, housing; 121, plug-in tube; 122, air supply pipe; 130, spiral sleeve; 131, spiral protrusion; 140, sealing ring; 150, reinforcing rib; 210, grip; 211, handle; 212, swing rod; 220, rotating rod; 230, bending rod; 240, extrusion ring; 250, spiral block; 260, transmission ring; 270, transmission screw; 280, transmission nut; 290, push rod; 310, connecting rod; 320, limiting ring; 330, limiting rod; 340, buffer pad; 350, sealing piston. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] like Figures 1 to 7 As shown, an embodiment of the present invention provides a brake caliper sealing detection device, which includes a detection box 110 and a detection member.

[0032] The interior of the inspection box 110 is hollow, and a discharge port connecting the internal and external environments is provided on the inspection box 110. A support seat 112 for supporting the caliper is provided inside the inspection box 110. After the caliper is placed on the support seat 112, the caliper maintains a stable state, and the staff can place the caliper on the support seat 112 through the discharge port. Correspondingly, the staff can also take out the caliper on the support seat 112 through the discharge port.

[0033] The detection member includes a housing 120, a spiral sleeve 130 and an adjustment member; Figure 2Taking the angle as an example, the shell 120 is vertically arranged, the axis of the shell 120 is in a vertical state, the shell 120 is hollow inside, the hollow chamber inside the shell 120 is the detection chamber 111, and the side wall of the shell 120 is provided with an air supply pipe 122 connecting the external environment and the detection chamber 111, the air supply pipe 122 is horizontally arranged, the end of the air supply pipe 122 can be connected to the air supply source, and the air supply source can supply air to the detection chamber 111 through the air supply pipe 122. When the caliper is not tested, the air supply source is in a closed state, and when the caliper is tested, the air supply source is in an open state. The upper end of the shell 120 is provided with a plug-in tube 121, the plug-in tube 121 is coaxially arranged with the shell 120, the outer diameter of the plug-in tube 121 is smaller than the inner diameter of the caliper oil port, the plug-in tube 121 can be inserted into the caliper oil port, and further, the plug-in tube 121 is a connecting tube, and the plug-in tube 121 can connect the external environment with the detection chamber 111.

[0034] The spiral sleeve 130 is arranged on the outside of the plug tube 121. There is no gap in the vertical direction of the spiral sleeve 130 itself. The spiral sleeve 130 is cylindrical. The spiral sleeve 130 is coaxially sleeved on the outside of the plug tube 121. The outer wall of the spiral sleeve 130 is provided with a spiral protrusion 131. The inner wall of the caliper oil port is provided with a thread. The spiral protrusion 131 on the spiral sleeve 130 can be engaged with the thread of the inner wall of the caliper oil port. The diameter of the spiral sleeve 130 can change. When the diameter of the spiral sleeve 130 changes, when the spiral sleeve 130 enters the caliper oil port, the spiral sleeve 130 on the spiral sleeve 130 The spiral protrusion 131 will not contact the thread of the inner wall of the caliper oil port. During the process of inserting the plug tube 121 into the caliper oil port, the spiral sleeve 130 is in a state of minimum diameter. When the plug tube 121 is fully inserted into the caliper oil port, the diameter of the spiral sleeve 130 returns to its initial state, thereby achieving the engagement of the spiral protrusion 131 on the spiral sleeve 130 with the internal thread of the caliper oil port, and at the same time avoiding the contact between the spiral protrusion 131 on the spiral sleeve 130 and the internal thread of the caliper oil port during the process of inserting the plug tube 121 into the caliper oil port, thereby reducing the probability of damage to the internal thread of the caliper oil port.

[0035] The adjusting member is used to reduce the diameter of the spiral sleeve 130 when the plug tube 121 is inserted into the caliper oil port. When the plug tube 121 is fully inserted into the caliper oil port, the adjusting member increases the diameter of the spiral sleeve 130 so that the diameter of the spiral sleeve 130 returns to its initial state. When the air pressure in the detection chamber 111 increases, the adjusting member further increases the diameter of the spiral sleeve 130. When the diameter of the spiral sleeve 130 increases, the spiral protrusion 131 on the spiral sleeve 130 is squeezed with the internal thread of the caliper oil port, so that the sealing between the caliper oil port and the spiral protrusion 131 is further improved.

[0036] A brake caliper sealing detection device of the present invention, when performing a sealing detection on the caliper, the caliper to be detected is placed on a support seat 112 inside a detection box 110, and the air supply pipe 122 is connected to an air supply source. At this time, the air supply source does not supply air to the inside of the air supply pipe 122. Then, the housing 120 is held close to the oil port of the caliper so that the plug-in tube 121 is inserted into the oil port of the caliper. During this process, the adjusting member reduces the diameter of the spiral sleeve 130 to avoid friction between the spiral sleeve 130 and the threads of the inner wall of the caliper oil port during the insertion of the plug-in tube 121 into the caliper oil port, thereby reducing the probability of damage to the spiral sleeve 130. When the plug-in tube 121 is fully inserted into the caliper oil port, the adjusting member increases the diameter of the spiral sleeve 130 so that the spiral protrusion 131 on the spiral sleeve 130 engages with the internal thread of the caliper oil port. At this time, the spiral protrusion 131 arranged on the spiral sleeve 130 is a complete and continuous structure, thereby reducing damage to the internal thread of the caliper oil port. Furthermore, when the plug-in tube 121 is fully inserted into the caliper oil port, the air supply source supplies air to the air supply tube 122. At this time, the air pressure in the detection chamber 111 increases, and the adjustment member further increases the diameter of the spiral sleeve 130. The spiral protrusion 131 on the spiral sleeve 130 squeezes the internal thread of the caliper oil port, thereby increasing the sealing performance between the plug-in tube 121 and the caliper oil port, thereby improving the accuracy of the caliper sealing detection.

[0037] In one embodiment, the spiral sleeve 130 is spring-like in shape, and the spiral sleeve 130 itself is surrounded by a cylindrical structure. The spiral sleeve 130 is coaxially sleeved on the outer side of the plug tube 121 to Figure 2 Taking the angle as an example, a sealing ring 140 is fixedly arranged at the lower end of the spiral sleeve 130, and the sealing ring 140 is fixedly connected to the plug tube 121. The outer diameter of the sealing ring 140 is larger than the inner diameter of the caliper oil port, and the sealing ring 140 cannot enter the inside of the caliper oil port. When the plug tube 121 is inserted into the inside of the caliper oil port, the sealing ring 140 is in a state of abutting the caliper. The adjusting member is used to drive the upper end of the spiral sleeve 130 to rotate when the plug tube 121 is inserted into the inside of the caliper oil port. When the upper end of the spiral sleeve 130 rotates, the spiral sleeve 13 0 changes, when the adjusting member drives the upper end of the spiral sleeve 130 to rotate, the spiral direction of the spiral sleeve 130 is first determined, and when the plug tube 121 needs to be inserted into the caliper oil port, the adjusting member drives the upper end of the spiral sleeve 130 to rotate around the spiral direction of the spiral sleeve 130, so that the diameter of the spiral sleeve 130 is reduced, and when the plug tube 121 is fully inserted into the caliper oil port, the adjusting member drives the upper end of the spiral sleeve 130 to rotate in the opposite direction around the spiral direction of the spiral sleeve 130, so that the diameter of the spiral sleeve 130 is restored to the initial state. When the air pressure in the detection chamber 111 increases, the adjusting member further drives the upper end of the spiral sleeve 130 to rotate in the opposite direction around the spiral direction of the spiral sleeve 130, so that the diameter of the spiral sleeve 130 is further increased, thereby further improving the sealing between the spiral sleeve 130 and the internal thread of the caliper oil port.

[0038] In one of the embodiments, the spiral sleeve 130 has reinforcing ribs 150 inside, and the reinforcing ribs 150 are arranged in a spiral shape. The pitch of the reinforcing ribs 150 is the same as the pitch of the spiral sleeve 130, and the hardness of the reinforcing ribs 150 is greater than the hardness of the spiral sleeve 130. By setting the reinforcing ribs 150 inside the spiral sleeve 130, the strength of the spiral sleeve 130 is improved, and when the upper end of the spiral sleeve 130 is rotated, the spiral sleeve 130 is prevented from breaking.

[0039] In one embodiment, the adjusting member includes a handle 210, a rotating rod 220 and a transmission member. The rotating rod 220 is rotatably disposed in the detection chamber 111. The rotating rod 220 is coaxial with the plug-in tube 121, and one end of the rotating rod 220 extends to the outside of the plug-in tube 121. The end of the rotating rod 220 outside the plug-in tube 121 is connected to a bending rod 230, and the bending rod 230 is vertically slidably connected to the upper end of the spiral sleeve 130. When the rotating rod 220 rotates, the upper end of the spiral sleeve 130 rotates through the transmission of the bending rod 230. After the upper end of the spiral sleeve 130 rotates, the diameter of the spiral sleeve 130 changes, and at the same time, the height of the upper end of the spiral sleeve 130 changes. Furthermore, the bending rod 230 includes a first section and a second section, the first section is vertically fixedly connected to the second section, the first section is arranged along the radial direction of the plug tube 121, one end of the first section is fixedly connected to the rotating rod 220, the second section is arranged vertically, and one end of the second section away from the first section is slidably connected to the upper end of the spiral sleeve 130. The handle 210 is rotatably connected to the housing 120. In the initial state, the plug tube 121 is in a state of being inserted into the caliper oil port. At this time, there is a certain angle between the handle 210 and the housing 120. When the plug tube 121 needs to be inserted into the caliper oil port, the handle 210 is driven to rotate on the housing 120, and the handle 210 can gradually fit the outer wall of the housing 120. The transmission member is arranged between the handle 210 and the rotating rod 220. When the handle 210 rotates, the rotating rod 220 rotates around its own axis through the transmission of the transmission member. When the rotating rod 220 rotates, the upper end of the spiral sleeve 130 rotates through the transmission of the bending rod 230, thereby changing the diameter of the spiral sleeve 130.

[0040] In one embodiment, a squeeze ring 240 is sleeved on the plug tube 121. The squeeze ring 240 is coaxially arranged with the plug tube 121. The inner diameter of the squeeze ring 240 is equal to the outer diameter of the plug tube 121. The squeeze ring 240 can slide vertically and rotate circumferentially on the plug tube 121. The squeeze ring 240 is slidably connected to the second section of the bending rod 230. When the rotating rod 220 rotates, the squeeze ring 240 is driven by the bending rod 230 to simultaneously rotate outside the plug tube 121. A spiral groove is provided on the inner wall of the extrusion ring 240, and a spiral block 250 is fixedly provided on the outer wall of the plug-in tube 121. The spiral block 250 is slidably arranged in the spiral groove. In the initial state, the extrusion ring 240 and the spiral sleeve 130 are in abutment with each other. When the plug-in tube 121 needs to be inserted into the caliper oil port, the rotating rod 220 is driven to rotate. Through the transmission of the bending rod 230, the extrusion ring 240 and the upper end of the spiral sleeve 130 rotate at the same time. The extrusion ring 240 moves in the vertical direction under the guidance of the spiral block 250. At the same time, the diameter of the spiral sleeve 130 is reduced, and the upper end of the spiral sleeve 130 is also changed in the vertical direction, but the heights of the two changes are different, so that the extrusion ring 240 and the upper end of the spiral sleeve 130 are out of contact with each other; when the plug-in tube 121 is completely When inserted into the caliper oil port, the rotating rod 220 rotates in the opposite direction and is transmitted again through the bending rod 230, so that the upper ends of the extrusion ring 240 and the spiral sleeve 130 are gradually reset; further, when the air pressure in the detection chamber 111 increases, the rotating rod 220 rotates in the opposite direction and is transmitted again through the bending rod 230, so that the upper ends of the extrusion ring 240 and the spiral sleeve 130 rotate in the opposite direction. When the upper end of the spiral sleeve 130 rotates in the opposite direction, the diameter of the spiral sleeve 130 gradually increases. At this time, the spiral sleeve 130 itself may generate a gap in the vertical direction. When the extrusion ring 240 rotates in the opposite direction, the extrusion ring 240 moves in the vertical direction, and the extrusion ring 240 squeezes the upper end of the spiral sleeve 130, thereby avoiding the generation of a gap in the vertical direction of the spiral sleeve 130.

[0041] In one embodiment, the transmission member includes a transmission ring, a transmission screw 270, a transmission nut 280 and a push rod 290; the push rod 290 is coaxially slidably disposed in the detection cavity 111, and when the handle 210 rotates, the push rod 290 slides up and down in the detection cavity 111. In this embodiment, an extrusion block is disposed on the handle 210, and when the handle 210 rotates, the extrusion block squeezes the push rod 290, so that the push rod 290 slides up and down in the detection cavity 111. The transmission nut 280 is coaxially slidably disposed in the detection cavity 111, and the upper end of the push rod 290 abuts against the transmission nut 280. When the push rod 290 slides in the detection cavity 111, the push rod 290 can push the transmission nut 280. The transmission ring 260 is coaxially rotatably arranged in the detection chamber 111, the transmission ring 260 is coaxially fixedly connected to the rotating rod 220, the transmission screw 270 is coaxially fixedly connected to the transmission ring 260, and the transmission nut 280 is threadedly connected to the transmission screw 270. Specifically, the transmission nut 280 is sleeved on the outside of the transmission screw 270. When the transmission nut 280 moves up and down in the detection chamber 111, the transmission screw 270 rotates around its own axis direction, and the transmission screw 270 drives the transmission ring 260 and the rotating rod 220 to rotate synchronously.

[0042] In one embodiment, the grip 210 includes a handle 211 and a swing arm 212, one end of the swing arm 212 is fixedly connected to the handle 211, and a fixed angle is formed between the handle 211 and the swing arm 212. The other end of the swing arm 212 is rotatably connected to the shell 120. In the initial state, the swing arm 212 is in a horizontal state, and the swing arm 212 is inside the detection cavity 111. The staff can pinch the handle 211 to approach the outer wall of the shell 120. The swing arm 212 gradually swings during this process until the handle 211 fits against the outer wall of the shell 120.

[0043] In one embodiment, the transmission member further includes a connecting rod 310, a limiting rod 330 and a limiting ring 320. The limiting ring 320 is fixedly connected to the detection chamber 111. A limiting hole is provided at the axis of the limiting ring 320. The push rod 290 is provided through the limiting hole, so that the push rod 290 is in a vertical state in the detection chamber 111. One end of the connecting rod 310 is rotatably connected to the lower end of the push rod 290, and the other end of the connecting rod 310 is rotatably connected to the middle part of the swing rod 212. When the swing rod 212 rotates, the swing rod 212 pushes the push rod 290 through the connecting rod 310, so that the push rod 290 slides in the vertical direction. The limiting rod 330 is fixedly provided on the housing 120, one end of the limiting rod 330 is inside the detection chamber 111, and the limiting rod 330 is slidably connected to the transmission nut 280, so that the transmission nut 280 is in a state of sliding up and down in the detection chamber 111.

[0044] In one embodiment, the adjusting member also includes a buffer pad 340; the limiting ring 320 can separate the detection chamber 111 into a first chamber and a second chamber that are isolated from each other. In the vertical direction, the first chamber is above the second chamber, the air supply pipe 122 is connected to the first chamber, and the buffer pad 340 is arranged in the first chamber. When the air pressure in the first chamber increases, the buffer pad 340 is deformed. When the buffer pad 340 is deformed, the vertical height of the buffer pad 340 is reduced, and the transmission nut 280 moves downward relative to the transmission screw 270. When the transmission nut 280 moves downward, the transmission screw 270 rotates, so that the diameter of the spiral sleeve 130 increases.

[0045] In one of the embodiments, a sealing piston 350 is fixedly provided on the transmission nut 280. The sealing piston 350 is slidably provided in the first chamber. The sealing piston 350 is slidably and sealedly connected to the inner wall corresponding to the first chamber. The air supply pipe 122 is always above the sealing piston 350. In the initial state, the sealing piston 350 is in a state of not abutting against the buffer pad 340. When the air pressure in the first chamber increases, the sealing piston 350 slides in the first chamber, and the sealing piston 350 gradually squeezes the buffer pad 340. During the sliding process of the sealing piston 350 in the first chamber, the sealing piston 350 drives the transmission nut 280 to move synchronously, so as to drive the rotating rod 220 to rotate when the air pressure in the first chamber increases.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A brake caliper sealing detection device, characterized in that: include: A detection box, the interior of which is hollow and a support seat for supporting the caliper is provided in the detection box; A detection member, the detection member comprising a housing, a spiral sleeve and an adjusting member; The shell has a detection cavity inside, and the shell is provided with an air supply pipe connecting the external environment and the detection cavity; the end of the air supply pipe is connected to the air supply source; one end of the shell is provided with a plug-in pipe, the plug-in pipe is coaxially arranged with the shell, and the plug-in pipe connects the external environment and the detection cavity; The spiral sleeve is arranged on the outside of the plug-in tube, and a spiral protrusion is arranged on the outer wall of the spiral sleeve. The diameter of the spiral sleeve can be changed, and the spiral protrusion can be engaged with the internal thread of the caliper oil port; The adjusting member is used to reduce the diameter of the spiral sleeve when the plug-in tube is inserted into the caliper oil port; when the plug-in tube is inserted into the caliper oil port, the adjusting member increases the diameter of the spiral sleeve; when the air pressure in the detection chamber increases, the adjusting member further increases the diameter of the spiral sleeve; The spiral sleeve is spring-like in shape and is coaxially sleeved on the outside of the plug-in tube. A sealing ring is fixedly provided on the lower end of the spiral sleeve and is fixedly connected to the plug-in tube. When the upper end of the spiral sleeve rotates, the diameter of the spiral sleeve can change.

2. The brake caliper sealing detection device according to claim 1, characterized in that: The spiral sleeve has reinforcing ribs inside, the reinforcing ribs are arranged in a spiral shape, the pitch of the reinforcing ribs is the same as the pitch of the spiral sleeve; the hardness of the reinforcing ribs is greater than the hardness of the spiral sleeve.

3. The brake caliper sealing detection device according to claim 1, characterized in that: The adjusting member includes a handle, a rotating rod and a transmission member, the rotating rod is rotatably arranged in the detection cavity, the rotating rod is coaxial with the plug-in tube, and the rotating rod extends to the outside of the plug-in tube; a bending rod is connected to the rotating rod, and the bending rod is vertically slidably connected to the upper end of the spiral sleeve; the handle is rotatably connected to the outer shell, the transmission member is arranged between the handle and the rotating rod, and when the handle rotates, the rotating rod rotates around its own axis through the transmission of the transmission member.

4. The brake caliper sealing detection device according to claim 3, characterized in that: The plug-in tube is sleeved with an extrusion ring, which is slidably connected to the bending rod. The inner wall of the extrusion ring is provided with a spiral groove, and the outer wall of the plug-in tube is fixedly provided with a spiral block, which is slidably arranged in the spiral groove. The extrusion ring can extrude the spiral sleeve.

5. The brake caliper sealing detection device according to claim 3, characterized in that: The transmission member includes a transmission ring, a transmission screw, a transmission nut and a push rod; the push rod is coaxially slidably arranged in the detection cavity, and when the handle is rotated, the push rod slides up and down in the detection cavity; the transmission nut is coaxially slidably arranged in the detection cavity, and the push rod can push the transmission nut; the transmission ring is coaxially rotatably arranged in the detection cavity, the transmission ring is coaxially fixedly connected to the rotating rod, the transmission screw is coaxially fixedly connected to the transmission ring, and the transmission nut is threadedly connected to the transmission screw.

6. The brake caliper sealing detection device according to claim 5, characterized in that: The grip includes a handle and a swing rod, one end of the swing rod is fixedly connected to the handle, a fixed angle is formed between the handle and the swing rod, the other end of the swing rod is rotatably connected to the shell, and the handle can fit the outer wall of the shell.

7. The brake caliper sealing detection device according to claim 6, characterized in that: The transmission member also includes a connecting rod, a limiting rod and a limiting ring, wherein the limiting ring is fixedly connected to the detection chamber; the push rod is slidably connected to the limiting ring; one end of the connecting rod is rotationally connected to the lower end of the push rod, and the other end of the connecting rod is rotationally connected to the middle part of the swing rod; the limiting rod is fixedly arranged on the outer shell, and the limiting rod is slidably connected to the transmission nut.

8. The brake caliper sealing detection device according to claim 7, characterized in that: The adjusting member also includes a buffer pad; the limiting ring can separate the detection chamber into a first chamber and a second chamber that are isolated from each other, the air supply pipe is connected to the first chamber, and the buffer pad is arranged in the first chamber. When the air pressure in the first chamber increases, the buffer pad is deformed.

9. The brake caliper sealing detection device according to claim 8, characterized in that: A sealing piston is fixedly arranged on the transmission nut, and the sealing piston is coaxially slidably arranged in the first chamber. The sealing piston can abut against the buffer pad, and the buffer pad is fixedly connected to the limiting ring.

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