Positioning clamp device for noise acquisition probe of automobile spark plug

Abstract

The utility model discloses a positioning clamp device for a noise acquisition probe of an automobile spark plug. The positioning clamp device comprises a mounting block, at least one groove formed in the upper end of the mounting block, rotating blocks rotationally mounted on the two sides of the inner wall of the groove, and a transverse cylinder fixedly connected to one side of each rotating block in a penetrating manner, the upper end of the mounting block is fixedly connected with two vertical cylinders for blocking the transverse cylinder, and the upper end of the mounting block is provided with a damping mechanism for blocking the rotating block; fixing mechanisms are arranged on the two sides of the mounting block; the side wall of the transverse cylinder is fixedly connected with at least one rotating part, each rotating part comprises arc-shaped blocks fixedly connected to the two sides of the corresponding rotating block, clamping parts are arranged at the ends, close to each other, of the two arc-shaped blocks, and noise sensors are arranged in the clamping parts. The utility model has the advantages that the positioning precision is higher, the clamp is not easy to loosen, and the probe position is not easy to shift, and the stability of the noise sensor after installation is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive engine testing, specifically to a positioning clamp device for an automotive spark plug noise acquisition probe. Background Technology

[0002] During the operation of a car engine, the working condition of the spark plugs directly affects the engine's power, economy, and emissions performance. Spark plugs generate specific noise at the moment of ignition, and these noise signals contain rich information about the engine's operating status, such as electrode wear, ignition energy stability, and air-fuel combustion conditions. Therefore, accurate collection and analysis of spark plug noise has become an important means of engine condition monitoring, fault diagnosis, and performance optimization.

[0003] Currently, most spark plug noise detection in the industry uses contact or near-field non-contact probes. However, due to the confined space and complex structure of the engine compartment, as well as the presence of harsh environmental factors such as continuous vibration, high temperature, and oil contamination, how to stably and accurately position the probe at the optimal sampling location near the spark plug has always been a key problem hindering noise detection work.

[0004] In existing technologies, simple clamps (such as metal clips or rubber straps) are typically used to fix the probe to the engine block or spark plug periphery. However, this fixing method has significant shortcomings: firstly, the positioning accuracy is low, making it difficult to ensure that the probe is always at the preset optimal acquisition distance and angle, resulting in a large deviation in noise signal acquisition; secondly, the stability is poor, as continuous engine vibration can easily loosen the clamp, causing the probe position to shift, affecting the continuity and consistency of noise data, which needs further improvement. Utility Model Content

[0005] The purpose of this invention is to provide a positioning clamp device for automotive spark plug noise acquisition probes, which has the advantages of high positioning accuracy, easy clamping, and easy probe position shift, thus solving the problems in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A positioning clamp device for a car spark plug noise acquisition probe includes a mounting block, at least one groove formed on the upper end of the mounting block, a rotating block rotatably mounted on both sides of the inner wall of the groove, and a horizontal cylinder that is fixedly connected to one side of the rotating block.

[0008] Two vertical tubes for blocking the horizontal tube are fixed to the upper end of the mounting block, and a shock-absorbing mechanism for blocking the rotating block is provided at the upper end of the mounting block.

[0009] Both sides of the mounting block are equipped with fixing mechanisms;

[0010] At least one rotating component is fixed to the side wall of the cross cylinder. The rotating component includes arc-shaped blocks fixed to both sides of the rotating block. A clamping component is provided at one end of the two arc-shaped blocks that are close to each other. A noise sensor is provided inside the clamping component.

[0011] A fixing ring is fixed to the side wall of the noise sensor, and a rubber block is fixed to the side wall of the fixing ring. The rubber block is compatible with the clamping component.

[0012] The clamping component is equipped with a limit frame and a locking mechanism. The side wall of the fixing ring is equipped with a snap-fit ​​mechanism and a reinforcement mechanism. When the noise sensor enters the clamping component, the snap-fit ​​mechanism enters the limit frame, and the locking mechanism is used to connect the reinforcement mechanism so that the noise sensor is placed in a limited position.

[0013] Preferably, multiple wire grooves are provided through the horizontal cylinder, and a USB port is provided on the mounting block.

[0014] It is worth noting that the cable tray can organize and protect the cables of the noise sensor, preventing them from becoming tangled or damaged due to friction or compression in the engine vibration environment, and ensuring stable wiring connections. The USB port provides a convenient power supply and data transmission interface for the noise sensor, eliminating the need for additional complex wiring, simplifying the use of the device, improving the convenience and compatibility of data acquisition, and helping to achieve real-time transmission and processing of noise signals.

[0015] Preferably, the damping mechanism includes a damper fixed to the mounting block, a swashplate fixed to the output end of the damper, a spring fixed to the lower end of the swashplate, the lower end of the spring fixed to the mounting block, an inclined plate fixed to the upper end of the swashplate, and the upper end of the inclined plate fixed to the lower end of the rotating block.

[0016] It is worth noting that the combination of damper and spring can effectively absorb the energy generated by engine vibration. The damping effect is transmitted to the rotating block through the swashplate and swashplate, which greatly reduces the impact of vibration on the rotating block and noise sensor. It can adapt to vibration of different frequencies, improve the stability of the device in harsh vibration environment, avoid probe position displacement caused by vibration, and ensure the continuity and accuracy of noise acquisition.

[0017] Preferably, the fixing mechanism includes a first fixing block fixed to both sides of the mounting block and a first bolt threaded onto the first fixing block.

[0018] It is worth noting that the threaded connection between the first bolt and the first fixing block can firmly fix the mounting block to the engine block or surrounding components. The installation and disassembly are convenient and the connection strength is high. Compared with traditional simple clamps, this fixing method can resist the risk of loosening caused by continuous engine vibration, ensure the overall position of the mounting block is stable, and lay the foundation for the accurate positioning of the probe in the future.

[0019] Preferably, the clamping component includes a first vertical block and a second vertical block. The first vertical block and the second vertical block are installed on opposite sides of the two arc-shaped blocks. There is a gap between adjacent first vertical blocks and second vertical blocks on the same side, and the rubber block is fitted into the gap.

[0020] It is worth noting that the gap formed by the first and second vertical blocks provides a precise fitting space for the rubber block. The elastic properties of the rubber block itself allow it to be positioned relatively stably between the first and second vertical blocks, achieving a firm clamping while avoiding damage to the noise sensor from hard contact. At the same time, the rubber material can buffer vibration, reducing the displacement of the noise sensor caused by vibration and ensuring the stability of the acquisition angle and distance.

[0021] Preferably, the height of both the first vertical block and the second vertical block is greater than the height of the arc-shaped block.

[0022] It is worth noting that the higher first and second vertical blocks can increase the contact area with the rubber block, extend the clamping length, and improve the longitudinal constraint on the rubber block and the internal noise sensor; this can effectively prevent the noise sensor from loosening or shifting in the vertical direction, further improving the stability of the clamping and ensuring the consistency of the acquisition position.

[0023] Preferably, the height of the rubber block is greater than the height of the arc-shaped block, and the heights of the rubber block, the first vertical block, and the second vertical block are equal.

[0024] It is worth noting that: the three parts are of equal height and the height of the rubber block exceeds that of the arc-shaped block, so that the rubber block can be completely wrapped and clamped by the first and second vertical blocks, ensuring that the rubber block is subjected to uniform force and improving the clamping firmness; at the same time, the part of the rubber block that protrudes from the arc-shaped block can better buffer external impacts, protect the noise sensor, and ensure that the relative position of the noise sensor and the acquisition target is not limited by the height of the arc-shaped block, thus improving the positioning flexibility.

[0025] Preferably, the snap-fit ​​mechanism includes a square plate fixed to the side wall of the fixing ring, and an insert block fixed to the lower end of the square plate, the insert block being inserted into the inner wall of the limiting frame.

[0026] It is worth noting that the interlocking structure of the insert and the limiting frame enables the noise sensor to be pre-positioned quickly, making it easier to find the correct position during installation and improving assembly efficiency. At the same time, the snap-fit ​​mechanism can temporarily fix the noise sensor before the reinforcement mechanism locks it in, preventing the noise sensor from shifting during installation and ensuring the accuracy of the subsequent locking operation.

[0027] Preferably, the reinforcing mechanism includes a second fixing block fixed to the side wall of the fixing ring. A first screw hole is opened through one side of the second fixing block, a second screw hole corresponding to the first screw hole is opened through one side of the second vertical block, and a third screw hole corresponding to both the first and second screw holes is opened through one side of the arc-shaped block. The locking mechanism includes a threaded post installed with the common thread in the first, second, and third screw holes. Both ends of the threaded post extend to the outer sides of the two arc-shaped blocks, and locking nuts are threaded to the side walls of both ends of the threaded post. The ends of the two locking nuts that are close to each other are tightly abutted against the ends of the two arc-shaped blocks that are far apart, so as to lock the threaded post to the two arc-shaped blocks.

[0028] It is worth noting that the double locking design, in which the threaded column passes through the first, second, and third threaded holes and works in conjunction with the locking nut, can firmly connect the fixing ring, vertical block, and arc-shaped block into a whole, greatly improving the connection strength and anti-loosening ability of the structure. Even under the long-term high-frequency vibration environment of the engine, it can effectively prevent the relative displacement of each component, ensure that the noise sensor is always in the preset acquisition position, guarantee the continuity and consistency of noise data, and significantly improve the reliability and service life of the device.

[0029] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0030] 1. In the clamping component, the gap formed by the first vertical block and the second vertical block provides a precise fitting space for the rubber block, which is conducive to the stable placement of the noise sensor. The insertion block of the snap-fit ​​mechanism is inserted into the limiting frame to achieve pre-positioning, ensuring that the initial position of the noise sensor is accurate. Then, the threaded post of the reinforcement mechanism passes through the first screw hole, the second screw hole and the third screw hole, and the locking nut locks the fixing ring, the vertical block and the arc block into a whole, so that the noise sensor is firmly fixed at the preset distance and angle, avoiding position deviation and significantly improving positioning accuracy.

[0031] 2. The first bolt of the fixing mechanism passes through the first fixing block and is tightened on the engine block or surrounding components to firmly fix the mounting block, resist the risk of loosening caused by vibration, and provide a stable foundation for the overall structure. In the damping mechanism, when the engine vibrates, the damper and the spring work together. The spring absorbs vibration energy through extension and contraction, and the damper suppresses the resonance of the spring. The damping effect is transmitted to the rotating block through the swashplate and swash plate, which greatly reduces the vibration amplitude of the rotating block and reduces the displacement of the noise sensor caused by vibration.

[0032] 3. The elastic properties of the rubber block itself can buffer vibration and impact. Combined with the longitudinal constraints of the first and second vertical blocks, it further prevents the noise sensor from shifting up and down, ensuring the continuity and consistency of noise data acquisition, and effectively adapting to the harsh environment of high temperature and vibration in the engine compartment. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0034] Figure 2 This is a three-dimensional structural diagram of the arc-shaped block of this utility model;

[0035] Figure 3 This is a three-dimensional structural diagram of the snap-fit ​​mechanism of this utility model;

[0036] Figure 4 This is a three-dimensional structural diagram of the shock absorption mechanism of this utility model;

[0037] Figure 5 This is a three-dimensional disassembled structural diagram of the locking mechanism of this utility model.

[0038] Reference numerals: 1. Mounting block; 2. Groove; 3. Rotating block; 4. Horizontal cylinder; 5. Vertical cylinder; 6. First fixing block; 7. First bolt; 8. USB port; 9. Arc-shaped block; 10. Cable tray; 11. Noise sensor; 12. Fixing ring; 13. Rubber block; 14. Second fixing block; 15. First screw hole; 16. Square plate; 17. Insert block; 18. Damper; 19. Swashplate; 20. Spring; 21. Swashplate; 22. First vertical block; 23. Second vertical block; 24. Second screw hole; 25. Third screw hole; 26. Limiting frame; 27. Threaded post; 28. Locking nut. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0040] To address the inconvenience of manually cleaning sedimentation tanks in existing technologies, the following technical solution is provided. Please refer to [link / reference needed]. Figures 1-5 ;

[0041] The positioning clamp device for automotive spark plug noise acquisition probe includes a mounting block 1, at least one groove 2 opened on the upper end of the mounting block 1, a rotating block 3 rotatably mounted on both sides of the inner wall of the groove 2, and a horizontal cylinder 4 that is fixed to one side of the rotating block 3 through the groove.

[0042] Two vertical cylinders 5 are fixed to the upper end of the mounting block 1 to block the horizontal cylinder 4. The upper end of the mounting block 1 is provided with a shock-absorbing mechanism to block the rotating block 3.

[0043] Both sides of mounting block 1 are equipped with fixing mechanisms;

[0044] At least one rotating component is fixed to the side wall of the horizontal cylinder 4. The rotating component includes arc-shaped blocks 9 fixed to both sides of the rotating block 3. A clamping component is provided at one end of the two arc-shaped blocks 9 that are close to each other. A noise sensor 11 is provided inside the clamping component.

[0045] A fixing ring 12 is fixedly connected to the side wall of the noise sensor 11, and a rubber block 13 is fixedly connected to the side wall of the fixing ring 12. The rubber block 13 is compatible with the clamping component.

[0046] The clamping component is provided with a limit frame 26 and a locking mechanism. The side wall of the fixing ring 12 is provided with a snap-fit ​​mechanism and a reinforcement mechanism. When the noise sensor 11 enters the clamping component, the snap-fit ​​mechanism enters the limit frame 26, and the locking mechanism is used to connect the reinforcement mechanism so that the noise sensor 11 is placed in a limited position.

[0047] In use, the mounting block 1 is welded to the edge protrusion of the valve cover, and the mounting block 1 is fixed to the edge protrusion of the valve cover using the fixing mechanism. Since the cross cylinder 4 is constrained and fixed by the shock-absorbing mechanism and the vertical cylinder 5, the arc block 9 is held in a specific position. The noise sensor 11 is inserted into the clamping component, and the clamping component is used to squeeze the rubber block 13 to achieve the positioning of the noise sensor 11. In addition, the snap-fit ​​mechanism is adapted to the limit frame 26, and the reinforcement mechanism is adapted to the locking mechanism. The snap-fit ​​mechanism and the reinforcement mechanism can be used to achieve stable placement of the noise sensor 11. In use, the shock-absorbing mechanism will resist the rotating block 3 to make the rotating block 3 difficult to move. The rubber block 13 is made of high temperature resistant silicone material and can work in high temperature environment.

[0048] In this embodiment, specifically: multiple wire grooves 10 are provided through the horizontal cylinder 4, and a USB port 8 is provided on the mounting block 1. It should be noted that the mounting block 1 is made of aluminum alloy heat-insulating material, and the USB port 8 has an embedded ceramic insulation layer, which can be used in high-temperature environments.

[0049] In this embodiment, specifically: the damping mechanism includes a damper 18 fixed to the mounting block 1, a swashplate 19 fixed to the output end of the damper 18, a spring 20 fixed to the lower end of the swashplate 19, the lower end of the spring 20 fixed to the mounting block 1, an inclined plate 21 fixed to the upper end of the swashplate 19, and the upper end of the inclined plate 21 fixed to the lower end of the rotating block 3.

[0050] It should be noted that the rotating block 3 can rotate slightly during vibration, and the damper 18 and spring 20 provide the restoring force. The damper 18 is filled with high-temperature resistant hydraulic oil and can operate in high-temperature environments. The damping coefficient is ≥0.8.

[0051] In this embodiment, specifically: the fixing mechanism includes a first fixing block 6 fixed to both sides of the mounting block 1 and a first bolt 7 threaded onto the first fixing block 6.

[0052] In this embodiment, specifically: the clamping component includes a first vertical block 22 and a second vertical block 23. The first vertical block 22 and the second vertical block 23 are installed on opposite sides of the two arc-shaped blocks 9. There is a gap between adjacent first vertical blocks 22 and second vertical blocks 23 on the same side, and the rubber block 13 is fitted into the gap.

[0053] In this embodiment, specifically: the height of the first vertical block 22 and the second vertical block 23 are both greater than the height of the arc block 9, the height of the arc block 9 is H1, and the height of the first vertical block 22 is H2, satisfying H2>H1.

[0054] In this embodiment, specifically: the height of the rubber block 13 is greater than the height of the arc-shaped block 9, and the heights of the rubber block 13, the first vertical block 22, and the second vertical block 23 are equal.

[0055] In this embodiment, specifically: the snap-fit ​​mechanism includes a square plate 16 fixed to the side wall of the fixing ring 12, and an insert block 17 fixed to the lower end of the square plate 16. The insert block 17 is inserted into the inner wall of the limiting frame 26.

[0056] In this embodiment, specifically: the reinforcement mechanism includes a second fixing block 14 fixed to the side wall of the fixing ring 12. A first screw hole 15 is provided through one side of the second fixing block 14, a second screw hole 24 corresponding to the first screw hole 15 is provided through one side of the second vertical block 23, and a third screw hole 25 corresponding to both the first screw hole 15 and the second screw hole 24 is provided through one side of the arc-shaped block 9. The locking mechanism includes a threaded post 27 that is threaded together in the first screw hole 15, the second screw hole 24 and the third screw hole 25. Both ends of the threaded post 27 extend to the outside of the two arc-shaped blocks 9, and both ends of the threaded post 27 are threadedly connected to locking nuts 28. The ends of the two locking nuts 28 that are close to each other are tightly abutted against the ends of the two arc-shaped blocks 9 that are far apart, so as to lock the threaded post 27 onto the two arc-shaped blocks 9.

[0057] Working principle: When in use, first weld the mounting block 1 to the edge protrusion of the valve cover, and then further reinforce it through the fixing mechanism. That is, use the first bolts 7 threaded on the first fixing blocks 6 on both sides of the mounting block 1 to fasten the mounting block 1 to the edge protrusion of the valve cover, so as to achieve stable fixing of the whole device.

[0058] A rotating block 3, which is rotatably mounted on both sides of the inner wall of the groove 2 at the upper end of the mounting block 1, is fixedly connected to a horizontal cylinder 4 through one side. Two vertical cylinders 5 fixed to the upper end of the mounting block 1 form a block against the horizontal cylinder 4. At the same time, the damping mechanism on the mounting block 1 provides support and block against the rotating block 3. The damper 18 of the damping mechanism is fixed to the mounting block 1. A spring 20 is fixed to the lower end of the swashplate 19 fixed to the output end of the damper 18. The lower end of the spring 20 is fixed to the damper 18. An inclined plate 21 is fixed to the upper end of the swashplate 19. The upper end of the inclined plate 21 is fixed to the lower end of the rotating block 3. The cooperation between the damper 18 and the spring 20 keeps the horizontal cylinder 4 in a stable position, thereby keeping the two arc-shaped blocks 9 in the rotating parts fixed to the side wall of the horizontal cylinder 4 in a specific position.

[0059] The noise sensor 11 is then installed in the clamping component, which consists of two arc-shaped blocks 9, one vertical block 22 and the other vertical block 23, which are fixed at one end close to each other. The gap between them is adapted to the rubber block 13 on the side wall fixing ring 12 of the noise sensor 11. The rubber block 13 is fitted into the gap. At the same time, the insert 17 fixed to the lower end of the square plate 16 of the side wall snapping mechanism of the fixing ring 12 is inserted into the inner wall of the limiting frame 26 on the clamping component to achieve the pre-positioning of the noise sensor 11.

[0060] The final fixation is completed by the cooperation of the reinforcement mechanism and the locking mechanism. That is, the first screw hole 15 of the second fixing block 14 on the side wall of the fixing ring 12, the second screw hole 24 of the second vertical block 23, and the third screw hole 25 of the arc block 9 correspond to each other. After the threaded column 27 passes through the first screw hole 15, the second screw hole 24 and the third screw hole 25, its two ends extend to the outside of the two arc blocks 9. By tightening the locking nuts 28 on the side walls of the two ends of the threaded column 27, the ends of the two locking nuts 28 that are close to each other are tightly abutted against the ends of the two arc blocks 9 that are far apart, locking and fixing the threaded column 27, thereby firmly fixing the noise sensor 11.

[0061] The cable of the noise sensor 11 can be routed through the wire channel 10 on the cross cylinder 4 and powered and transmitted through the USB port 8 on the mounting block 1.

[0062] When the car is subjected to vibration, the damper 18 and the spring 20 work together to absorb the vibration energy. The damping effect is transmitted to the rotating block 3 through the swashplate 19 and the swashplate 21, reducing the vibration of the rotating block 3 and the arc block 9. At the same time, the elastic properties of the rubber block 13 further buffer the vibration, prevent the noise sensor 11 from shifting position, and ensure that the noise collection work is carried out stably.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A positioning clamp device for automotive spark plug noise acquisition probes, characterized in that: It includes a mounting block (1), at least one groove (2) opened on the upper end of the mounting block (1), a rotating block (3) rotatably mounted on both sides of the inner wall of the groove (2), and a horizontal cylinder (4) fixed through to one side of the rotating block (3). The upper end of the mounting block (1) is fixed with two vertical cylinders (5) for blocking the horizontal cylinder (4), and the upper end of the mounting block (1) is provided with a shock-absorbing mechanism to block the rotating block (3). The mounting block (1) has fixing mechanisms on both sides; At least one rotating component is fixed to the side wall of the horizontal cylinder (4). The rotating component includes an arc-shaped block (9) fixed to both sides of the rotating block (3). A clamping component is provided at one end of the two arc-shaped blocks (9) that are close to each other. A noise sensor (11) is provided inside the clamping component. A fixing ring (12) is fixed to the side wall of the noise sensor (11), and a rubber block (13) is fixed to the side wall of the fixing ring (12). The rubber block (13) is compatible with the clamping component. The clamping component is provided with a limit frame (26) and a locking mechanism. The side wall of the fixing ring (12) is provided with a snap-fit ​​mechanism and a reinforcement mechanism. When the noise sensor (11) enters the clamping component, the snap-fit ​​mechanism enters the limit frame (26), and the locking mechanism is used to connect the reinforcement mechanism so that the noise sensor (11) is placed in a limited position.

2. The automotive spark plug noise collection probe positioning clamp apparatus of claim 1, wherein: Multiple wire grooves (10) are provided through the horizontal cylinder (4), and a USB port (8) is provided on the mounting block (1).

3. The automotive spark plug noise collection probe positioning clamp apparatus of claim 1, wherein: The damping mechanism includes a damper (18) fixed to the mounting block (1), a swash plate (19) fixed to the output end of the damper (18), a spring (20) fixed to the lower end of the swash plate (19), the lower end of the spring (20) fixed to the mounting block (1), a swash plate (21) fixed to the upper end of the swash plate (19), and the upper end of the swash plate (21) fixed to the lower end of the rotating block (3).

4. The automotive spark plug noise collection probe positioning clamp apparatus of claim 1, wherein: The fixing mechanism includes a first fixing block (6) fixed to both sides of the mounting block (1) and a first bolt (7) threaded onto the first fixing block (6).

5. The automotive spark plug noise collection probe positioning clamp apparatus of claim 1, wherein: The clamping component includes a first vertical block (22) and a second vertical block (23). The first vertical block (22) and the second vertical block (23) are installed on opposite sides of the two arc-shaped blocks (9). There is a gap between the first vertical block (22) and the second vertical block (23) on the same side. The rubber block (13) is fitted into the gap.

6. The automotive spark plug noise acquisition probe positioning clamp apparatus of claim 5, wherein: The heights of the first vertical block (22) and the second vertical block (23) are both greater than the height of the arc block (9).

7. The automotive spark plug noise collection probe positioning clamp apparatus of claim 5, wherein: The height of the rubber block (13) is greater than the height of the arc block (9), and the heights of the rubber block (13), the first vertical block (22), and the second vertical block (23) are equal.

8. The automotive spark plug noise collection probe positioning clamp apparatus of claim 1, wherein: The snap-fit ​​mechanism includes a square plate (16) fixed to the side wall of the fixing ring (12), and a plug (17) fixed to the lower end of the square plate (16). The plug (17) is inserted into the inner wall of the limiting frame (26).

9. The automotive spark plug noise collection probe positioning clamp apparatus of claim 1, wherein: The reinforcement mechanism includes a second fixing block (14) fixed to the side wall of the fixing ring (12). A first screw hole (15) is provided through one side of the second fixing block (14). A second screw hole (24) corresponding to the first screw hole (15) is provided through one side of the second vertical block (23). A third screw hole (25) corresponding to both the first screw hole (15) and the second screw hole (24) is provided through one side of the arc block (9). The locking mechanism includes a threaded post (27) installed in the first screw hole (15), the second screw hole (24) and the third screw hole (25). The two ends of the threaded post (27) extend to the outside of the two arc blocks (9) respectively. Locking nuts (28) are threadedly connected to the side walls of both ends of the threaded post (27). The ends of the two locking nuts (28) that are close to each other are tightly abutted against the ends of the two arc blocks (9) that are far apart from each other, so as to lock the threaded post (27) onto the two arc blocks (9).

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