Vehicle CAN bus detection test bench

Abstract

The utility model discloses a vehicle CAN bus detection test bench, which belongs to the technical field of CAN and comprises a test bench body, a plurality of sockets are arranged on one side in the test bench body, plugs are arranged on one sides, far away from the test bench body, of the sockets, and self-locking assemblies are arranged between the sockets and the plugs. According to the utility model, the third spring drives the clamping block to enter the first clamping groove to fix the clamping block and the fixing sleeve, so that self-locking is formed between the plug and the socket, and the test bench body is prevented from falling off due to external acting force in the process of detecting an external vehicle CAN bus. The connection stability and the use portability of a product in the detection process are improved, after detection is completed, a hand-cranking device is manually operated to drive a rotating shaft and a winding wheel to rotate, a balancing weight drives a protective layer and a sliding block to move downwards, the test bed body is protected through the protective layer, and the test bed body is prevented from being damaged. Therefore, the signal transmission stability and the detection precision of the product are prevented from being influenced.

Description

Technical Field

[0001] The utility model belongs to the technical field of CAN, and in particular relates to a vehicle CAN bus detection test bench. Background Art

[0002] CAN bus is a multi-master bus system, which is also the abbreviation of controller area network. The messages of CAN network are broadcast, that is, the data detected by all nodes on the network at the same time are consistent. Therefore, it is more suitable for transmitting short messages such as control, temperature and speed. In order to ensure its operational stability during use, it needs to be tested using a test bench.

[0003] For example, Chinese document (CN211044007U) discloses a CAN bus detection test bench, comprising: a test bench and an instrument panel, wherein the instrument panel is arranged on the test bench; a power module, wherein the power module is arranged on the test bench; a front drive module, wherein the front drive module is arranged on the test bench; a rear drive module, wherein the rear drive module is arranged on the test bench; a top drive module, wherein the top drive module is arranged on the test bench; a lighting lamp, wherein the lighting lamp is arranged on the top of the test bench; a plurality of terminals, wherein the plurality of terminals are arranged on the test bench; a leakage switch, wherein the leakage switch is arranged on the test bench; and two sockets, wherein the two sockets are arranged on the test bench. The utility model provides the advantages of reducing downtime, improving vehicle availability, and improving operational efficiency, and can also be applied to employee electromechanical transformation training, and is easy to use. However, during use, the product has poor connection stability and protection, which affects the detection accuracy of the product. Therefore, certain improvements are needed. Utility Model Content

[0004] The purpose of the utility model is to propose a vehicle CAN bus detection test bench to solve the problem that the prior art has poor connection stability and protection during use, which affects the product detection accuracy.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A vehicle CAN bus detection test bench comprises a test bench body, a dustproof component is arranged on one side of the top of the test bench body, a plurality of sockets are arranged on one side inside the test bench body, a plug is arranged on the side of the socket away from the test bench body, and a self-locking component is arranged between the socket and the plug;

[0007] The self-locking component includes a fixed sleeve, which is fixedly connected to the outer peripheral side of the socket, and a plurality of first card grooves are opened on the inner peripheral side of the fixed sleeve, a card block is arranged inside the first card groove, one side of the first card groove is connected to the second cavity, the second cavity is located inside the fixed sleeve, a rectangular slider is slidably connected to the top side of the second cavity, one side of the rectangular slider extends into the second cavity and is fixedly connected to the first conical block, the other side of the first conical block is provided with a second conical block, the second conical block is fixedly connected to a slide plate on the side away from the first conical block, and the other side of the slide plate extends to the outside of the fixed sleeve and is fixedly connected to an annular plate.

[0008] As a further description of the above technical solution:

[0009] A second spring is provided on both sides of the rectangular slider, and the second spring is fixedly connected to the first conical block and the inner wall of the fixed sleeve on both sides respectively. The clamping block is arranged in a T shape, and a third spring is fixedly connected to the side of the clamping block away from the rectangular slider, and the other side of the third spring is fixedly connected to the inner wall of the plug, and the clamping block is slidably connected inside the plug.

[0010] As a further description of the above technical solution:

[0011] The slide plate is slidably connected to the inside of the fixed sleeve, and fourth springs are provided on both sides of the slide plate. Both sides of the fourth spring are respectively fixedly connected to the second conical block and the inner wall of the fixed sleeve, and the annular plate is slidably connected to the outside of the fixed sleeve. A plurality of connecting blocks are fixedly connected to the side of the annular plate opposite to the fixed sleeve, and the connecting blocks are arranged on the outer peripheral side of the slide plate, and a third cavity is provided on the side of the connecting block away from the annular plate, and clamping mechanisms are provided on both sides of the inside of the third cavity, and a second clamping groove is provided on the other side of the clamping mechanism, and the second clamping groove is located inside the connecting block.

[0012] As a further description of the above technical solution:

[0013] The dustproof assembly comprises a fixed box, the bottom of which is fixedly connected to the top of the test bench body, a rotating shaft is rotatably connected inside the fixed box, one end of the rotating shaft extends to the outside of the fixed box and is fixedly connected to a hand crank.

[0014] As a further description of the above technical solution:

[0015] A winding wheel is fixedly connected to the rotating shaft, a protective layer is wound on the winding wheel, one end of the protective layer extends to the outside of the fixed box and is fixedly connected to a counterweight block, sliding blocks are fixedly connected to both sides of the counterweight block, and a sliding groove is slidably connected to the other side of the sliding block, and the sliding groove is located inside the test bench body.

[0016] As a further description of the above technical solution:

[0017] A main airbag is fixedly connected to the bottom of the sliding block, and the main airbag is arranged in the sliding groove, and the bottom of the main airbag is fixedly connected to the inner wall of the test bench body, one side of the main airbag is connected to an air supply pipe, and the other end of the air supply pipe is connected to an air supply frame, and the air supply frame is arranged as an L-shaped hollow frame, and the other side of the air supply frame is fixedly connected to the outer wall of the fixed sleeve, and a first cavity is opened on one side of the interior of the fixed sleeve, and the first cavity is connected to the air supply frame, and one side of the first cavity is connected to a secondary airbag through a pipeline, and the secondary airbag is arranged in the third cavity, and one side of the secondary airbag is fixedly connected to the inner wall of the fixed sleeve, and the other side of the secondary airbag is fixedly connected to a sliding plate, and the sliding plate is arranged in a ring shape, and the other side of the sliding plate is fixedly connected to a first spring, and the other side of the first spring is fixedly connected to the inner wall of the fixed sleeve.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the utility model, by providing a self-locking component, when the inner side of the plug contacts the socket, the third spring drives the card block to enter the first card slot, fixes the card block and the fixing sleeve, so that the plug and the socket are self-locked, preventing the test bench body from falling off due to external forces during the detection of the external vehicle CAN bus, thereby preventing the product's performance from being affected, and improving the product's connection stability and portability during the detection process.

[0020] 2. In the utility model, through the dustproof component, when the detection is completed, the hand crank is manually operated to drive the rotating shaft and the winding wheel to rotate. At this time, the gravity of the counterweight block will drive the protective layer and the sliding block to move downward, and the protective layer will protect one side of the test bench body to prevent external dust from adhering to the socket inside the test bench body due to the static effect during long-term non-use, thereby preventing external dust from affecting the signal transmission stability and detection accuracy of the product. The sliding block will transport the internal gas of the main airbag to the inside of the auxiliary airbag, causing it to expand and drive the sliding plate to squeeze the connecting block, which can assist in releasing the clamping effect between the connecting block and the clamping mechanism for subsequent use, thereby effectively improving the overall performance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the dustproof component in the utility model;

[0023] Figure 3 For the utility model Figure 1 A local enlarged structural schematic diagram;

[0024] Figure 4 It is a schematic diagram of a partial internal three-dimensional structure of the fixing sleeve in the utility model;

[0025] Figure 5 For the utility model Figure 4 Schematic diagram of the local enlarged structure at point B.

[0026] Legend:

[0027] 1. Test bench body; 2. Dustproof component; 201. Fixed box; 202. Rotating shaft; 203. Hand crank; 204. Winding wheel; 205. Protective layer; 206. Counterweight; 207. Sliding block; 208. Main airbag; 209. Air pipe; 210. Air supply frame; 211. First cavity; 212. Auxiliary airbag; 213. Sliding plate; 214. First spring; 3. Socket; 4. Plug; 5. Self-locking component; 501. Fixed sleeve; 502. First card slot; 503. Second spring; 504. First conical block; 505. Rectangular slider; 506. Card block; 507. Third spring; 508. Second conical block; 509. Slide plate; 510. Annular plate; 511. Fourth spring; 512. Connecting block; 513. Card connection mechanism. DETAILED DESCRIPTION

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

[0029] See also Figure 1-Figure 5 The utility model provides a technical solution: a vehicle CAN bus detection test bench, including a test bench body 1, a dustproof component 2 is arranged on the top side of the test bench body 1, a plurality of sockets 3 are arranged on one side inside the test bench body 1, a plug 4 is arranged on the side of the socket 3 away from the test bench body 1, and a self-locking component 5 is arranged between the socket 3 and the plug 4.

[0030] The self-locking component 5 includes a fixed sleeve 501, which is fixedly connected to the outer peripheral side of the socket 3, and a plurality of first card grooves 502 are opened on the inner peripheral side of the fixed sleeve 501, and a card block 506 is arranged inside the first card groove 502. One side of the first card groove 502 is connected to the second cavity, and the second cavity is located inside the fixed sleeve 501. A rectangular slider 505 is slidably connected to the top side of the second cavity. One side of the rectangular slider 505 extends into the second cavity and is fixedly connected to a first conical block 504. A second conical block 508 is arranged on the other side of the first conical block 504. A slide plate 509 is fixedly connected to the side of the second conical block 508 away from the first conical block 504. The other side of the slide plate 509 extends to the outside of the fixed sleeve 501 and is fixedly connected to an annular plate 510. Second springs 503 are arranged on both sides of the rectangular slider 505. The second spring 503 is fixed to the first conical block 504 and the inner wall of the fixed sleeve 501 on both sides. The card block 506 is set to a T shape, and the card block 506 is fixedly connected to the side away from the rectangular slider 505 with a third spring 507, and the other side of the third spring 507 is fixedly connected to the inner wall of the plug 4. The card block 506 is slidably connected to the inside of the plug 4, and the slide plate 509 is slidably connected to the inside of the fixed sleeve 501. Fourth springs 511 are provided on both sides of the slide plate 509, and the sides of the fourth spring 511 are respectively fixedly connected to the second conical block 508 and the inner wall of the fixed sleeve 501, and the annular plate 510 is slidably connected to the outside of the fixed sleeve 501. A plurality of connecting blocks 512 are fixedly connected to the side of the annular plate 510 relative to the fixed sleeve 501, and the connecting blocks 512 are arranged on the outer peripheral side of the slide plate 509, and a third cavity is provided on the side of the connecting block 512 away from the annular plate 510, and a clamping mechanism 513 is provided on both sides of the inside of the third cavity, and a second clamping groove is provided on the other side of the clamping mechanism 513, and the second clamping groove is located inside the connecting block 512.

[0031] Specific implementation method: first, electrically connect one end of the plug 4 to the external vehicle CAN bus, and then manually operate the plug 4 to make it electrically connected to the socket 3. During this process, the fixing sleeve 501 will squeeze the block 506 and the third spring 507. When the inner side of the plug 4 contacts the socket 3, the third spring 507 will drive the block 506 to enter the first slot 502 provided inside the fixing sleeve 501, and fix the block 506 and the fixing sleeve 501 to form a self-locking between the plug 4 and the socket 3, so as to prevent the test bench body 1 from falling off due to external forces during the detection of the external vehicle CAN bus, thereby preventing the product's performance from being affected. After the test is completed, the annular plate 510 is manually operated to drive the slide plate 509, the second conical block 508 and the connecting block 512 to move in the direction of the fixed sleeve 501. The linkage effect between the second conical block 508 and the first conical block 504 is utilized to transmit power to the first conical block 504, so that the first conical block 504 drives the rectangular slider 505 to move and squeeze the clamping block 506 and the third spring 507. At the same time, the clamping mechanism 513 will fix the use position of the connecting block 512 and the annular plate 510, so as to release the self-locking between the plug 4 and the socket 3, so as to disassemble the plug 4 and the socket 3, thereby improving the connection stability and portability of the product during the test process.

[0032] The dustproof component 2 includes a fixed box 201, the bottom of the fixed box 201 is fixedly connected to the top of the test bench body 1, the fixed box 201 is rotatably connected with a rotating shaft 202, one end of the rotating shaft 202 extends to the outside of the fixed box 201 and is fixedly connected to a hand crank 203, a winding wheel 204 is fixedly connected to the rotating shaft 202, a protective layer 205 is wound around the winding wheel 204, one end of the protective layer 205 extends to the outside of the fixed box 201 and is fixedly connected to a counterweight 206, both sides of the counterweight 206 are fixedly connected with sliding blocks 207, the other side of the sliding block 207 is slidably connected with a sliding groove, the sliding groove is located inside the test bench body 1, the bottom of the sliding block 207 is fixedly connected with a main airbag 208, the main airbag 208 is arranged in the sliding groove, and the bottom of the main airbag 208 is fixed to the inner wall of the test bench body 1 Fixed connection, one side of the main airbag 208 is connected with an air supply pipe 209, and the other end of the air supply pipe 209 is connected with an air supply frame 210, which is arranged as an L-shaped hollow frame, and the other side of the air supply frame 210 is fixedly connected to the outer wall of the fixed sleeve 501, and a first cavity 211 is opened on one side inside the fixed sleeve 501, and the first cavity 211 is connected with the air supply frame 210, and one side of the first cavity 211 is connected with an auxiliary airbag 212 through a pipeline, and the auxiliary airbag 212 is arranged inside the third cavity, and one side of the auxiliary airbag 212 is fixedly connected to the inner wall of the fixed sleeve 501, and the other side of the auxiliary airbag 212 is fixedly connected to a sliding plate 213, and the sliding plate 213 is arranged in a ring shape, and the other side of the sliding plate 213 is fixedly connected to a first spring 214, and the other side of the first spring 214 is fixedly connected to the inner wall of the fixed sleeve 501.

[0033] Specific implementation method: After the detection is completed, the hand crank 203 is manually operated to drive the rotating shaft 202 and the winding wheel 204 to rotate, and the protective layer 205 is loosened. At this time, the gravity of the counterweight block 206 will drive the protective layer 205 and the sliding block 207 to move downward, and the protective layer 205 is used to protect one side of the test bench body 1 to prevent external dust from adhering to the socket 3 inside the test bench body 1 due to the electrostatic effect during long-term non-use, thereby preventing external dust from affecting the signal transmission stability and detection accuracy of the product. The sliding block 207 will squeeze the main airbag 208, and the internal gas of the main airbag 208 will be transported to the inside of the auxiliary airbag 212 through the air pipe 209, the air supply frame 210, the first cavity 211 and the pipeline, so that it will expand and drive the sliding plate 213 to move in the direction of the connecting block 512, and squeeze the connecting block 512, which can assist in releasing the clamping effect between the connecting block 512 and the clamping mechanism 513, so that it can be used again later, thereby effectively improving the overall performance of the product.

[0034] Working principle: When in use, first electrically connect one end of the plug 4 to the external vehicle CAN bus, and then manually operate the plug 4 to electrically connect it to the socket 3. During this process, the fixing sleeve 501 will squeeze the block 506 and the third spring 507. When the inner side of the plug 4 contacts the socket 3, the third spring 507 will drive the block 506 to enter the first slot 502 opened inside the fixing sleeve 501, so that the plug 4 and the socket 3 are self-locking. When the detection is completed, the annular plate 510 is manually operated to drive the slide plate 509, the second conical block 508 and the connecting block 512 to move in the direction of the fixing sleeve 501. The linkage effect between the second conical block 508 and the first conical block 504 is used to transmit power to the first conical block 504, so that the first conical block 504 drives the rectangular slider 505 to move and squeeze the block 506 and the third spring 507, and at the same time The clamping mechanism 513 will fix the use position of the connecting block 512 and the annular plate 510 so as to disassemble the plug 4 and the socket 3. When the inspection is completed, the hand crank 203 is manually operated to drive the rotating shaft 202 and the winding wheel 204 to rotate, and the protective layer 205 is loosened. At this time, the gravity of the counterweight block 206 will drive the protective layer 205 and the sliding block 207 to move downward, and the protective layer 205 is used to protect one side of the test bench body 1, and the sliding block 207 will squeeze the main airbag 208, and the internal gas of the main airbag 208 is transported to the inside of the auxiliary airbag 212 through the air pipe 209, the air supply frame 210, the first cavity 211 and the pipeline, so that it expands and drives the sliding plate 213 to move in the direction of the connecting block 512, and squeezes the connecting block 512, which can assist in releasing the clamping effect between the connecting block 512 and the clamping mechanism 513, and is easy to use.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A vehicle CAN bus detection test bench, comprising a test bench body (1), characterized in that: A dustproof component (2) is arranged on one side of the top of the test bench body (1); a plurality of sockets (3) are arranged on one side inside the test bench body (1); a plug (4) is arranged on the side of the socket (3) away from the test bench body (1); and a self-locking component (5) is arranged between the socket (3) and the plug (4); The self-locking component (5) comprises a fixing sleeve (501), the fixing sleeve (501) being fixedly connected to the outer peripheral side of the socket (3), and a plurality of first slots (502) are provided on the inner peripheral side of the fixing sleeve (501), a locking block (506) is provided inside the first slot (502), one side of the first slot (502) is connected to a second cavity, the second cavity is located inside the fixing sleeve (501), a rectangular slider (505) is slidably connected to the top side of the second cavity, one side of the rectangular slider (505) extends into the second cavity and is fixedly connected to a first conical block (504), the other side of the first conical block (504) is provided with a second conical block (508), a side of the second conical block (508) away from the first conical block (504) is fixedly connected to a slide plate (509), and the other side of the slide plate (509) extends to the outside of the fixing sleeve (501) and is fixedly connected to an annular plate (510).

2. The vehicle CAN bus detection test bench according to claim 1 is characterized in that: A second spring (503) is provided on both sides of the rectangular slider (505), and the second spring (503) is fixedly connected to the first conical block (504) and the inner wall of the fixed sleeve (501) on both sides, respectively. The clamping block (506) is arranged in a T shape, and a third spring (507) is fixedly connected to one side of the clamping block (506) away from the rectangular slider (505), and the other side of the third spring (507) is fixedly connected to the inner wall of the plug (4), and the clamping block (506) is slidably connected to the inside of the plug (4).

3. The vehicle CAN bus detection test bench according to claim 2 is characterized in that: The slide plate (509) is slidably connected to the interior of the fixed sleeve (501), and fourth springs (511) are provided on both sides of the slide plate (509). Both sides of the fourth spring (511) are fixedly connected to the second conical block (508) and the inner wall of the fixed sleeve (501) respectively. The annular plate (510) is slidably connected to the outside of the fixed sleeve (501), and a plurality of connecting blocks (512) are fixedly connected to the side of the annular plate (510) relative to the fixed sleeve (501), and the connecting blocks (512) are arranged on the outer peripheral side of the slide plate (509). A third cavity is provided on the side of the connecting block (512) away from the annular plate (510), and a clamping mechanism (513) is provided on both sides of the interior of the third cavity. A second clamping groove is provided on the other side of the clamping mechanism (513), and the second clamping groove is located inside the connecting block (512).

4. The vehicle CAN bus detection test bench according to claim 3 is characterized in that: The dustproof component (2) comprises a fixed box (201), the bottom of the fixed box (201) is fixedly connected to the top of the test bench body (1), a rotating shaft (202) is rotatably connected inside the fixed box (201), and one end of the rotating shaft (202) extends to the outside of the fixed box (201) and is fixedly connected to a hand crank (203).

5. The vehicle CAN bus detection test bench according to claim 4 is characterized in that: A winding wheel (204) is fixedly connected to the rotating shaft (202), a protective layer (205) is wound around the winding wheel (204), one end of the protective layer (205) extends to the outside of the fixed box (201) and is fixedly connected to a counterweight block (206), both sides of the counterweight block (206) are fixedly connected to sliding blocks (207), and the other side of the sliding block (207) is slidably connected to a sliding groove, and the sliding groove is located inside the test bench body (1).

6. The vehicle CAN bus detection test bench according to claim 5 is characterized in that: The bottom of the sliding block (207) is fixedly connected to a main air bag (208), the main air bag (208) is arranged in the sliding groove, and the bottom of the main air bag (208) is fixedly connected to the inner wall of the test bench body (1), one side of the main air bag (208) is connected to an air supply pipe (209), and the other end of the air supply pipe (209) is connected to an air supply frame (210), and the air supply frame (210) is arranged as an L-shaped hollow frame, and the other side of the air supply frame (210) is fixedly connected to the outer wall of the fixed sleeve (501), and the fixed sleeve (501) is provided with a first cavity (211) on one side thereof, and a first cavity (211) is provided on one side thereof. A cavity (211) is connected to an air delivery frame (210); one side of the first cavity (211) is connected to a secondary air bag (212) through a pipeline; the secondary air bag (212) is arranged inside a third cavity; one side of the secondary air bag (212) is fixedly connected to an inner wall of a fixed sleeve (501); the other side of the secondary air bag (212) is fixedly connected to a sliding plate (213); the sliding plate (213) is arranged in a ring shape; the other side of the sliding plate (213) is fixedly connected to a first spring (214); the other side of the first spring (214) is fixedly connected to the inner wall of the fixed sleeve (501).

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