A motor vehicle exhaust detection probe fixing device

Abstract

The application relates to the technical field of motor vehicle exhaust detection probes, and discloses a motor vehicle exhaust detection probe fixing device which adopts an inner support type mounting mode, and after being mounted, the telescopic support is in abutting contact with the support of the inner wall of the exhaust pipe, the tail end support seat is in embedded support with the exhaust pipe opening, the stable mounting and support of the probe body can be realized, compared with the traditional hand holding and external clamping mode, the probe body has better support and fixing effects, the telescopic support adopts an elastic telescopic support structure, the tail end support seat can be disassembled and replaced, the device can complete the stable mounting and support of the probe body in the exhaust pipe with different pipe diameters, the exhaust detection and mounting requirements of different vehicle types can be met, the device as a whole adopts a mounting structure of the assembled type, each component can be independently disassembled and replaced, the device is convenient to maintain and disassemble, the device can be disassembled and stored during transportation and storage, the probe body is connected and mounted through embedded plug-in cooperation and bolt fastening, and the device is convenient to disassemble and assemble.

Description

Technical Field

[0001] This invention relates to the field of motor vehicle exhaust gas detection probe technology, specifically a motor vehicle exhaust gas detection probe fixing device. Background Technology

[0002] The large amounts of harmful exhaust gases emitted by motor vehicles are a major mobile source of air pollution. Exhaust emission testing is a crucial component of ambient air pollution monitoring. With the widespread use of automobiles, vehicle exhaust pollution has become a global public nuisance, attracting widespread attention from experts and the public. Therefore, conducting scientific and reasonable exhaust emission testing on in-use vehicles has become a significant undertaking.

[0003] Motor vehicle exhaust emission testing refers to the analysis and determination of the components and concentrations of exhaust gases emitted by motor vehicles at idle or under operating conditions, either on-site or on a test bench. The main test items include carbon monoxide, nitrogen oxides, hydrocarbons, photochemical oxidants, and smoke opacity. During exhaust emission testing, the test probe needs to be inserted into the exhaust pipe to a depth of at least 400mm. The exhaust emissions are measured at different engine speeds. To ensure the accuracy of the test results, the test probe needs to be supported and fixed. Currently, most test probes are installed and fixed manually by holding the probe rod or using clamps to hold the side of the exhaust pipe. However, due to hand tremors or exhaust pipe vibrations, the probe is prone to slippage, displacement, or even detachment during testing, affecting the accuracy of the results. Therefore, a motor vehicle exhaust emission test probe fixing device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a motor vehicle exhaust gas detection probe fixing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a motor vehicle exhaust gas detection probe fixing device, comprising a support mechanism and a cylindrical column mechanism for mounting the probe body, wherein the support mechanism is used for mounting and supporting the probe body, the support mechanism includes a probe support seat and a tail end support seat, the probe body is detachably mounted on the front part of the probe support seat, a telescopic support column is telescopically provided on the outer periphery of the probe support seat, a spring is provided at the lower part of the telescopic support column, a drive slip ring is slidably mounted on the rear part of the probe support seat, and a connecting pull rope is provided between the drive slip ring and the telescopic support column;

[0006] The cylindrical column mechanism is used for connecting and installing the support mechanism. The cylindrical column mechanism includes a connecting cylindrical column and a driving connecting column. The probe support is installed at the end of the connecting cylindrical column, the tail end support is movably fitted into the middle of the connecting cylindrical column, and the driving connecting column is movably installed inside the connecting cylindrical column for driving the sliding of the slip ring.

[0007] Preferably, the probe support base has a probe mounting groove in the middle of its front side. The probe mounting groove is adapted to the probe body, and the probe body is fitted into the probe mounting groove.

[0008] Preferably, a communication plug is provided at the rear of the probe body, and a communication socket is provided inside the probe mounting slot, with the communication plug fitting into the inside of the communication socket.

[0009] Preferably, a positioning protrusion is fixed to the rear side of the probe body, a positioning groove is provided on the side of the probe mounting groove, the positioning protrusion is fitted into the inner side of the positioning groove, a fastening screw hole is provided on the upper part of the positioning protrusion, a fastening bolt is provided inside the fastening screw hole, and the end of the fastening bolt passes through the side of the positioning groove and is threaded to the inner side of the fastening screw hole.

[0010] Preferably, multiple telescopic supports are provided, and several of the telescopic supports are slidably installed inside the sliding holes provided on the outer periphery of the probe support base. The spring is installed against the lower part of the telescopic support, and a drive block is provided on the side of the telescopic support. One end of the connecting rope is fixed to the lower part of the drive block.

[0011] Preferably, a pull rope guide wheel is installed on the rear side of the probe support via a support, and the other end of the connecting pull rope passes through the pull rope guide wheel and is fixedly connected to the front of the drive slip ring.

[0012] Preferably, the probe support base has a connection hole in the middle of its rear side. The connection hole is adapted to the front end of the connecting cylinder. The front end of the connecting cylinder is fitted into the inner side of the connection hole. Limit screw seats are provided on both sides of the connection hole. Limit screw holes are provided on the upper part of the limit screw seats. Limit screw bolts are provided inside the limit screw holes. The limit screw holes penetrate the connecting cylinder and are threaded to the inner side of the limit screw holes.

[0013] Preferably, the aforementioned drive connecting column is slidably fitted into the slot inside the connecting cylinder column. The front end of the drive connecting column is fixed with a connecting cylinder seat. The drive connecting block is fixedly installed on the front side of the connecting cylinder seat by bolts. Both ends of the drive connecting block are provided with bolt mounting holes. A connecting bolt is inserted into the bolt mounting hole. The rear side of the drive slip ring is provided with a connecting screw hole. The end of the connecting bolt is threaded to the inner side of the connecting screw hole.

[0014] Preferably, the aforementioned drive pull block is fixedly installed to the rear end of the drive connecting column by bolts. Sliding slots are provided on both the front and rear sides of the connecting cylinder. The drive connecting block and the drive pull block slide on the inner sides of both ends of the connecting cylinder through the sliding slots. An anti-slip sleeve is fitted on the rear end of the connecting cylinder. A wire harness cover is fixed on the side of the connecting cylinder. A communication wire harness is installed inside the wire harness cover. A communication slot is provided on the rear side of the probe support. The communication slot is plugged into the plug provided at the end of the communication wire harness.

[0015] Preferably, the tail end support is provided with a mounting groove in the middle, and the tail end support is slidably fitted onto the middle of the connecting cylinder through the mounting groove. The fitting side of the tail end support is provided with a positioning bolt, and the upper part of the connecting cylinder is evenly provided with positioning screw holes.

[0016] Compared with the prior art, the present invention, employing the above technical solution, has the following technical effects:

[0017] 1. This fixing device adopts an internal support installation method. The probe body is connected and installed using a probe support base. A telescopic support column is set on the outer periphery of the probe support base. The telescopic support column is driven to extend and retract through a drive slip ring and a drive connecting column. The structure is simple and the telescopic support column can be extended and retracted by simply pulling with your fingers. It is easy to operate. After installation, the telescopic support column and the inner wall of the exhaust pipe provide support and abutment, and the tail support base and the exhaust pipe port fit together to provide support. This provides a more stable installation and support for the probe body than the traditional hand gripping and external clamping methods.

[0018] 2. The telescopic support column adopts an elastic telescopic support structure, combined with a detachable and replaceable tail end support seat, which allows the device to be stably supported and installed in exhaust pipes of different diameters, meeting the exhaust gas detection installation requirements of different vehicle models and greatly improving the installation applicability of the device.

[0019] 3. The probe body adopts a modular structure, treating the probe body as an independent functional module. The probe body is connected and installed by interlocking and bolt fastening, which is convenient for disassembly and assembly. When needed, the probe body can be quickly disassembled and replaced, greatly improving the convenience of maintenance and repair of the probe body.

[0020] 4. The device adopts a modular installation structure, using the connecting cylinder as the installation carrier. The probe support and tail support are assembled and connected by interlocking and plugging. Each component can be disassembled and replaced independently, making maintenance and disassembly convenient. The device can also be disassembled and stored during transportation, saving a lot of storage space and facilitating the movement, transportation and storage of the device. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall rear structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the front structure of the probe support base of the present invention;

[0025] Figure 4 This is a schematic diagram of the rear structure of the probe support base of the present invention;

[0026] Figure 5 This is a schematic diagram of the tail end support mounting structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the probe support base of the present invention.

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of the structure of region A in the middle;

[0029] Figure 8 This is a schematic diagram of the probe support base and drive connecting column installation structure of the present invention.

[0030] Explanation of reference numerals in the attached drawings: 1. Probe body; 2. Probe support; 3. Tail end support; 4. Telescopic support; 5. Connecting pull rope; 6. Drive slip ring; 7. Spring; 8. Pull rope guide wheel; 9. Probe mounting slot; 10. Positioning protrusion; 11. Communication plug; 12. Communication socket; 13. Connecting cylinder; 14. Drive connecting column; 15. Connecting socket; 16. Limit screw seat; 17. Connecting cylinder seat; 18. Drive connecting block; 19. Connecting bolt; 20. Drive pull block; 21. Wiring harness cover; 22. Communication slot; 23. Positioning bolt; 24. Positioning screw hole; 25. Anti-slip sleeve. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0033] Example

[0034] Please see Figures 1-8 This invention provides a technical solution: a motor vehicle exhaust gas detection probe fixing device, including a support mechanism and a cylindrical column mechanism for mounting the probe body 1. The support mechanism supports the mounting of the probe body 1 and includes a probe support seat 2 and a tail end support seat 3. The probe body 1 is an exhaust gas detection probe. To facilitate the connection and installation of the probe body 1, as shown in the attached... Figure 3 As shown, a probe mounting groove 9 is provided in the middle of the front side of the probe support 2. The probe mounting groove 9 is adapted to the probe body 1, and the probe body 1 is fitted into the probe mounting groove 9. For communication transmission connection, a communication plug 11 is provided at the rear of the probe body 1. A communication jack 12 is provided inside the probe mounting groove 9, and the communication plug 11 is fitted into the inner side of the communication jack 12. For secure installation of the probe body 1, a positioning protrusion 10 is fixed on the rear side of the probe body 1, and a positioning slot is provided on the side of the probe mounting groove 9. The positioning protrusion 10 is fitted into the inner side of the positioning groove. The upper part of the positioning protrusion 10 is provided with a fastening screw hole. The fastening screw hole is provided with a fastening bolt. The end of the fastening bolt passes through the side of the positioning groove and is threaded to the inner side of the fastening screw hole. The probe body 1 can be detachably installed on the front of the probe support 2. The probe body 1 is used as an independent functional module and is connected and installed by fitting and bolting. It is easy to disassemble and assemble. When needed, the probe body 1 can be quickly disassembled and replaced, which greatly improves the maintenance and repair convenience of the probe body 1.

[0035] To facilitate the support and fixation of the probe body 1, as shown in the attached figure... Figure 6 As shown, a telescopic support column 4 is telescopically installed on the outer periphery of the probe support 2. Multiple telescopic support columns 4 are provided, and several of them are slidably installed inside sliding holes on the outer periphery of the probe support 2. To provide elastic pushing force to the telescopic support column 4, a spring 7 is provided at the lower part of the telescopic support column 4, and the spring 7 is installed against the lower part of the telescopic support column 4. To drive the sliding movement of the telescopic support column 4, a driving block is provided on the side of the telescopic support column 4, as shown in the attached figure. Figure 7As shown, one end of the connecting rope 5 is fixed to the lower part of the drive block. In order to guide the connecting rope 5, a rope guide wheel 8 is installed on the rear side of the probe support 2 via a support. The other end of the connecting rope 5 passes through the rope guide wheel 8. In order to drive the connecting rope 5, a drive slip ring 6 is slidably installed on the rear part of the probe support 2. The other end of the connecting rope 5 is fixedly connected to the front part of the drive slip ring 6.

[0036] The cylindrical column mechanism is used for connecting and installing the support mechanism. The cylindrical column mechanism includes a connecting cylindrical column 13 and a drive connecting column 14. For connection and installation with the drive connecting column 14, see attached... Figure 4 As shown, a connection socket 15 is provided in the middle of the rear side of the probe support 2. The connection socket 15 is adapted to the front end of the connecting cylinder 13. The front end of the connecting cylinder 13 is inserted into the inner side of the connection socket 15. In order to securely connect the connecting cylinder 13, limit screw seats 16 are provided on both sides of the connection socket 15. The upper part of the limit screw seat 16 is provided with a limit screw hole. A limit bolt is provided inside the limit screw hole. The limit screw hole passes through the connecting cylinder 13 and is threaded into the inner side of the limit screw hole. In order to facilitate the connection and installation of the communication cable harness, as shown in the attached figure. Figure 2 As shown, a wire harness cover 21 is fixed on the side of the connecting cylinder 13. A communication wire harness is installed inside the wire harness cover 21. A communication slot 22 is provided on the rear side of the probe support 2. The communication slot 22 is plugged into the plug provided at the end of the communication wire harness.

[0037] To drive the telescopic strut 4 to extend and retract, the drive connecting rod 14 is slidably fitted into the slot inside the connecting cylinder 13, as shown in the attached figure. Figure 8As shown, a connecting cylinder seat 17 is fixed to the front end of the drive connecting column 14. The drive connecting block 18 is fixedly installed on the front side of the connecting cylinder seat 17 by bolts. Both ends of the drive connecting block 18 are provided with bolt mounting holes. Connecting bolts 19 are inserted into the bolt mounting holes. A connecting screw hole is provided on the rear side of the drive slip ring 6. The end of the connecting bolt 19 is threaded to the inner side of the connecting screw hole. The transmission connection between the drive connecting column 14 and the drive slip ring 6 can be realized through the connecting bolt 19. In order to facilitate the sliding drive of the drive connecting column 14, the drive pull block 20 is fixedly installed on the rear end of the drive connecting column 14 by bolts. Sliding slots are provided on both the front and rear sides of the connecting cylinder column 13. The drive connecting block 18 and the drive pull block 20 slide on the connecting cylinder through the sliding slots respectively. The telescopic support column 4 is simple in structure and can be driven to extend and retract by simply pulling with fingers. It is easy to operate. After installation, the telescopic support column 4 supports the probe body 1 by contacting the inner wall of the exhaust pipe and the tail support seat 3 is fitted with the exhaust pipe opening. Compared with the traditional hand gripping and external clamping method, it has a better support and fixation effect on the probe body 1. The telescopic support column 4 adopts an elastic telescopic support structure. With the detachable and replaceable tail support seat 3, the device can be installed in exhaust pipes of different diameters to achieve stable support for the probe body 1. It can meet the exhaust gas detection installation requirements of different vehicle models. In order to facilitate the gripping of the connecting column 13, an anti-slip sleeve 25 is fitted at the rear end of the connecting column 13.

[0038] To fit and support the exhaust pipe, the tail support 3 is movably fitted into the middle of the connecting cylinder 13. To facilitate the fitting and connection of the tail support 3, an installation groove is provided in the middle of the tail support 3. The tail support 3 is slidably fitted into the middle of the connecting cylinder 13 through the installation groove. To install and fix the tail support 3, a positioning bolt 23 is provided on the fitting side of the tail support 3. Positioning screw holes 24 are evenly opened on the upper part of the connecting cylinder 13. The positioning screw holes 24 are provided with multiple holes corresponding to several characteristic test depths. By changing the connection position of the positioning bolt 23 and the positioning screw hole 24, the fixed position of the probe body 1 can be controlled and adjusted.

[0039] The working principle or structural principle is as follows: During assembly, a suitable tail support 3 is selected based on the exhaust pipe diameter of the vehicle being tested. The tail support 3 is then fitted onto the upper part of the connecting cylinder 13. Next, the drive connecting rod 14 is inserted into the interior of the connecting cylinder 13. The drive connecting block 18 and drive pull block 20 are then connected and installed sequentially using fitting bolts. Finally, the end of the connecting cylinder 13 is inserted into the connecting hole 15 at the rear of the probe support 2. The installed connecting cylinder 13 is then locked in place using bolts and a limiting screw seat 16. After fixing, insert the two connecting pins 19 through the insertion holes provided on the side of the drive block 18. Then, tighten by rotating so that the end of the connecting pin 19 is threaded into the screw hole provided at the rear of the drive slip ring 6, thus completing the telescopic drive connection of the telescopic support column 4. Then, insert the end of the wire harness in the wire harness cover 21 into the communication slot 22 at the rear of the probe support 2 and align the probe body 1 into the probe mounting slot 9 provided at the front of the probe support 2. Then, use bolts and positioning protrusions 10 to install and tighten the probe body 1, thus completing the assembly of the device.

[0040] In use, according to the testing requirements, the support position of the tail support 3 is pre-adjusted by sliding, and the tail support 3 is locked and fixed by selecting the appropriate positioning screw hole 24 and positioning bolt 23. Then, the end of the connecting cylinder 13 is grasped by hand and the drive block 20 is pulled by fingers. The drive connecting column 14 pulls the drive slip ring 6 to move backward and pull the connecting rope 5. Under the pull of the connecting rope 5, the telescopic support column 4 retracts into the sliding hole inside the probe support 2. Then, the probe support 2 is inserted into the probe support 2. Inside the exhaust pipe, the telescopic support column 4 is fitted and supported by the tail end support 3 and the pipe opening. After releasing the drive pull block 20, the telescopic support column 4 pops outward under the push of the spring 7 and supports the inner wall of the exhaust pipe. Together with the tail end support 3, it provides stable support and fixation for the probe body 1. During the test, the probe body 1 detects the exhaust gas and transmits the detection information to the outside through the wiring harness to complete the exhaust gas detection operation. After the test is completed, the telescopic support column 4 is retracted by pulling the drive pull block 20. Then, the device can be taken out by pulling.

[0041] In summary, this mounting device adopts an internal support installation method. The probe body 1 is connected and installed using the probe support base 2. A telescopic support column 4 is provided on the outer periphery of the probe support base 2. The telescopic support column 4 is driven to extend and retract via a drive slip ring 6 and a drive connecting column 14. The structure is simple, and the telescopic support column 4 can be extended and retracted using only a simple finger pull action, making it easy to operate. After installation, the telescopic support column 4 supports and abuts against the inner wall of the exhaust pipe, while the tail support base 3 fits into the exhaust pipe opening, providing stable support for the probe body 1. Compared to traditional hand gripping and external clamping methods, this provides better support and fixation for the probe body 1. The telescopic support column 4 uses an elastic telescopic support structure, combined with the detachable and replaceable tail support base 3, allowing the device to install the probe in exhaust pipes of different diameters. The robust support of the main body 1 meets the exhaust gas detection installation requirements of different vehicle models, greatly improving the applicability of the device. The main body 1 adopts a modular structure, treating it as an independent functional module. It is connected and installed by interlocking and bolting, making disassembly and assembly convenient. When needed, the main body 1 can be quickly disassembled and replaced, greatly improving the maintenance and repair convenience of the main body 1. The device as a whole adopts a modular installation structure, using the connecting cylinder 13 as the installation carrier. The probe support seat 2 and the tail support seat 3 are assembled and connected by interlocking. Each component can be independently disassembled and replaced, making maintenance and disassembly convenient. The device can also be disassembled and stored during transportation, saving a lot of storage space and facilitating the movement, transportation, and storage of the device.

[0042] Those skilled in the art will understand that the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention can be combined or combined in various ways without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

Claims

1. A motor vehicle exhaust gas detection probe fixing device, comprising a support mechanism and a cylindrical column mechanism for mounting the probe body (1), characterized in that: The support mechanism is used for the installation support of the probe body (1). The support mechanism includes a probe support base (2) and a tail support base (3). The probe body (1) is detachably installed on the front of the probe support base (2). A telescopic support column (4) is telescopically provided on the outer periphery of the probe support base (2). A spring (7) is provided on the lower part of the telescopic support column (4). A drive slip ring (6) is slidably installed on the rear part of the probe support base (2). A connecting pull rope (5) is provided between the drive slip ring (6) and the telescopic support column (4). The cylindrical column mechanism is used for connecting and installing the support mechanism. The cylindrical column mechanism includes a connecting cylindrical column (13) and a driving connecting column (14). The probe support seat (2) is installed at the end of the connecting cylindrical column (13). The tail end support seat (3) is movably fitted into the middle of the connecting cylindrical column (13). The driving connecting column (14) is movably installed inside the connecting cylindrical column (13) for driving the sliding drive of the slip ring (6).

2. The motor vehicle exhaust gas detection probe fixing device according to claim 1, characterized in that: The probe support base (2) has a probe mounting groove (9) in the middle of its front side. The probe mounting groove (9) is adapted to the probe body (1), and the probe body (1) is fitted into the inside of the probe mounting groove (9).

3. The motor vehicle exhaust gas detection probe fixing device according to claim 2, characterized in that: The probe body (1) is provided with a communication plug (11) at the rear, and the probe mounting slot (9) is provided with a communication jack (12) inside, and the communication plug (11) is fitted into the inside of the communication jack (12).

4. The motor vehicle exhaust gas detection probe fixing device according to claim 3, characterized in that: A positioning protrusion (10) is fixed to the rear side of the probe body (1). A positioning slot is provided on the side of the probe mounting groove (9). The positioning protrusion (10) is fitted into the inner side of the positioning slot. A fastening screw hole is provided on the upper part of the positioning protrusion (10). A fastening bolt is provided inside the fastening screw hole. The end of the fastening bolt passes through the side of the positioning slot and is threaded to the inner side of the fastening screw hole.

5. The motor vehicle exhaust emission detection probe fixing device according to claim 1, characterized in that: Multiple telescopic support columns (4) are provided, and several telescopic support columns (4) are slidably installed inside the sliding holes provided on the outer periphery of the probe support base (2). The spring (7) is installed against the lower part of the telescopic support column (4). A drive block is provided on the side of the telescopic support column (4), and one end of the connecting pull rope (5) is fixed to the lower part of the drive block.

6. The motor vehicle exhaust emission detection probe fixing device according to claim 5, characterized in that: The rear side of the probe support (2) is equipped with a pull rope guide wheel (8) via a support. The other end of the connecting pull rope (5) passes through the pull rope guide wheel (8), and the other end of the connecting pull rope (5) is fixedly connected to the front of the drive slip ring (6).

7. The motor vehicle exhaust emission detection probe fixing device according to claim 6, characterized in that: The probe support base (2) has a connection hole (15) in the middle of its rear side. The connection hole (15) is adapted to the front end of the connecting cylinder (13). The front end of the connecting cylinder (13) is fitted into the inner side of the connection hole (15). Limit screw seats (16) are provided on both sides of the connection hole (15). Limit screw seats (16) are provided on the upper part of the limit screw seats (16). Limit screw holes are provided inside the limit screw holes. Limit screw bolts are provided inside the limit screw holes. The limit screw holes penetrate the connecting cylinder (13) and are threaded to the inner side of the limit screw holes.

8. The motor vehicle exhaust gas detection probe fixing device according to claim 7, characterized in that: The drive connecting column (14) is slidably fitted into the slot inside the connecting cylinder (13). The front end of the drive connecting column (14) is fixed with a connecting cylinder seat (17). The drive connecting block (18) is fixedly installed on the front side of the connecting cylinder seat (17) by bolts. Both ends of the drive connecting block (18) are provided with bolt mounting holes. A connecting bolt (19) is inserted into the bolt mounting hole. The rear side of the drive slip ring (6) is provided with a connecting screw hole. The end of the connecting bolt (19) is threaded to the inside of the connecting screw hole.

9. A motor vehicle exhaust emission detection probe fixing device according to claim 8, characterized in that: The drive pull block (20) is fixedly installed on the rear end of the drive connecting column (14) by bolts. The front and rear sides of the connecting cylinder (13) are provided with sliding grooves. The drive connecting block (18) and the drive pull block (20) slide on the inner sides of both ends of the connecting cylinder (13) through the sliding grooves. The rear end of the connecting cylinder (13) is fitted with an anti-slip sleeve (25). The side of the connecting cylinder (13) is fixed with a wire harness cover (21). The inside of the wire harness cover (21) is equipped with a communication wire harness. The rear side of the probe support (2) is provided with a communication slot (22). The communication slot (22) is plugged into the plug provided at the end of the communication wire harness.

10. A motor vehicle exhaust emission detection probe fixing device according to claim 1, characterized in that: The tail end support (3) is provided with an installation groove in the middle. The tail end support (3) is slidably fitted onto the middle of the connecting cylinder (13) through the installation groove. The fitting side of the tail end support (3) is provided with a positioning bolt (23). The upper part of the connecting cylinder (13) is evenly provided with positioning screw holes (24).

Images