A mold for an automobile knock sensor

Abstract

The utility model discloses a kind of moulds for automobile knock sensor, it is related to the field of application of automobile knock sensor, including detection equipment, the side of the detection equipment is provided with first support, and the inside of first support is provided with second support, and the inside of first support is rotatably connected with positive and negative screw rod, the outside of positive and negative screw rod is threadedly connected with two groups of moving seat, and the bottom of two groups of moving seat is movably installed with two groups of fixed rods, and the outside of two groups of fixed rods is all equipped with first spring, one end of two groups is provided with fixed block, and the other end of two groups of fixed rods is provided with clamping block, the inside of first support is provided with fourth support, and the top of fourth support is rotatably connected with knock plate, and one end of knock plate is connected with driving assembly. The utility model is connected by two groups of first spring by setting clamping block, and sensor is clamped, so that the detection of sensor is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of automotive knock sensor applications, specifically a mold for automotive knock sensors. Background Technology

[0002] A car knock sensor is a sensor used to detect engine knocking (knocking) phenomena. Knocking refers to the sudden premature combustion of fuel during the compression stroke in an internal combustion engine, producing a knocking sound that may damage the engine. The function of the knock sensor is to monitor the engine operating status in real time, detect knocking phenomena in a timely manner, and transmit the signal to the engine control unit.

[0003] The working principle of the knock sensor is based on the piezoelectric effect. The sensor is usually made of piezoelectric crystals, which can convert the vibration signals in the engine into electrical signals. When the engine knocks, the sensor will detect the high-frequency vibrations caused by the knock and transmit these signals to the ECU. The ECU will adjust the ignition timing or fuel supply according to the sensor signal to avoid knocking and protect the engine.

[0004] In practical applications, the normal operation of the knock sensor directly affects the stable operation of the engine. In order to effectively detect the knock sensor of a car before and after use, a mold for detecting the knock sensor is proposed. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a mold for an automotive knock sensor to solve the technical problems mentioned in the background.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mold for an automotive knock sensor, comprising a testing device, a first bracket on one side of the testing device, a second bracket on the inner side of the first bracket, and a positive and negative lead screw rotatably connected to the inner side of the first bracket. Two sets of movable seats are threaded onto the outer sides of the positive and negative lead screws, and two sets of fixed rods are movably mounted on the bottom of each of the two sets of movable seats. A first spring is sleeved on the outer side of each of the two sets of fixed rods. A fixing block is provided at one end of each of the two sets of fixed rods, and a clamping block is provided at the other end of each of the two sets of fixed rods. A fourth bracket is provided on the inner side of the first bracket, and a striking plate is rotatably connected to the top of the fourth bracket. A driving assembly is connected to one end of the striking plate.

[0007] By adopting the above technical solution, the sensor is clamped by two sets of clamping blocks connected by a first spring, making the sensor detection more convenient. The movable seat for installing the clamping blocks is moved by a lead screw, and the distance between the two sets of clamping blocks can be manually adjusted so that the equipment can clamp and detect sensors of different sizes. The clamping blocks are also pulled by rotating rods and traction ropes at both ends, so that the separation of the clamping blocks can be achieved by rotating the rotating rods and pulling the traction ropes, further improving the convenience of loading and unloading the sensors.

[0008] The present invention is further configured such that two sets of guide rods are provided on the inner side of the first bracket, and the two sets of guide rods and the movable seat are movably connected through each other.

[0009] Preferably, the movement of the movable seat can be restricted by setting two sets of guide rods.

[0010] The present invention is further configured such that a third bracket is provided on the inner side of the first bracket at the bottom of the striking plate, and the top of the third bracket and the bottom of the striking plate are connected by a second spring.

[0011] Preferably, by providing a second spring to pull the striking plate, the second spring can help the striking plate return to its original position.

[0012] The present invention is further configured such that a rotating rod is provided on the top of the detection device, and a traction rope is connected to one side of each of the two sets of fixed blocks, and the traction rope is wrapped around the outside of the rotating rod.

[0013] Preferably, by setting a rotating rod and a traction rope, when the positions of the two sets of moving seats are adjusted, the two sets of clamping blocks can be separated synchronously and quickly by rotating the rotating rod and pulling the traction rope, so as to facilitate the loading and unloading of the sensor.

[0014] The present invention is further configured such that the traction rope extends through the outer wall of the first bracket to the outside of the first bracket, and the traction rope is supported by a fixed pulley on the outside of the first bracket.

[0015] Preferably, the traction rope can be positioned on the outside of the first support by setting a fixed pulley to support the traction rope.

[0016] The present invention is further provided that the top of the detection device is provided with a connection port for connecting a knock sensor.

[0017] Preferably, by setting a connection port and an interface connection with the knock sensor, the data measured by the knock sensor can be transmitted to the detection device.

[0018] In summary, the present invention has the following main advantages:

[0019] This invention uses two sets of clamping blocks connected by a first spring to clamp the sensor, making sensor detection more convenient. The movable seat for mounting the clamping blocks is moved by a lead screw, and the distance between the two sets of clamping blocks can be manually adjusted to allow the equipment to clamp and detect sensors of different sizes. The clamping blocks are also connected to rotating rods and traction ropes at both ends for pulling, so that the clamping blocks can be separated by rotating the rotating rods and pulling the traction ropes, further improving the convenience of loading and unloading the sensors. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the connection between the striking plate and the driving assembly of this utility model;

[0022] Figure 3 This is a schematic diagram showing the installation of the movable seat, fixed rod, fixed block, first spring, and clamping block of this utility model;

[0023] Figure 4 This is a schematic diagram showing the connection between the third support, the fourth support, the striking plate, and the second spring of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Testing equipment; 2. Connection port; 3. First bracket; 4. Second bracket; 5. Positive and negative lead screws; 6. Guide rod; 7. Moving seat; 8. Fixed rod; 9. Fixed block; 10. First spring; 11. Clamping block; 12. Third bracket; 13. Fourth bracket; 14. Striking plate; 15. Second spring; 16. Drive assembly; 17. Rotating rod; 18. Traction rope. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] Please see Figure 1 - Figure 4A mold for an automotive knock sensor includes a testing device 1. A first bracket 3 is provided on one side of the testing device 1, and a second bracket 4 is provided on the inner side of the first bracket 3. A positive and negative lead screw 5 is rotatably connected to the inner side of the first bracket 3. Two sets of movable seats 7 are threadedly connected to the outer side of the positive and negative lead screw 5. Rotating the positive and negative lead screw 5 can drive the two sets of movable seats 7 to move closer or further apart. Two sets of fixed rods 8 are movably installed at the bottom of each set of movable seats 7, and a first spring 10 is sleeved on the outer side of each set of fixed rods 8. A fixing block 9 is provided at one end of each set of fixed rods 8 to prevent the fixed rods 8 from sliding out of the movable seats 7. A clamping block 11 is provided at the other end of each set of fixed rods 8. A fourth bracket 13 is provided on the inner side of the first bracket 3, and a striking plate 14 is rotatably connected to the top of the fourth bracket 13. A drive assembly 16 is connected to one end of the striking plate 14. The drive assembly 16 can be composed of a drive motor and a cam, and the striking plate 14 can be repeatedly struck.

[0029] Please refer to the above embodiments for further details. Figure 2 Two sets of guide rods 6 are provided on the inner side of the first bracket 3, and the two sets of guide rods 6 and the movable seat 7 are movably connected through each other. By setting the two sets of guide rods 6, the movement of the movable seat 7 can be restricted.

[0030] Please refer to the above embodiments for further details. Figure 4 A third bracket 12 is provided on the inner side of the first bracket 3 at the bottom of the striking plate 14, and the top of the third bracket 12 and the bottom of the striking plate 14 are connected by a second spring 15. The second spring 15 can help the striking plate 14 to reset by pulling the striking plate 14.

[0031] Please refer to the above embodiments for further details. Figure 4 The top of the detection device 1 is equipped with a rotating rod 17. One side of each of the two sets of fixed blocks 9 is connected to a traction rope 18, and the traction rope 18 is wrapped around the outside of the rotating rod 17. By setting the rotating rod 17 and the traction rope 18, when the positions of the two sets of moving seats 7 are adjusted, the two sets of clamping blocks 11 can be separated synchronously and quickly by rotating the rotating rod 17 and pulling the traction rope 18, so as to facilitate the loading and unloading of the sensor.

[0032] Please refer to the above embodiments for further details. Figure 4 The traction rope 18 extends through the outer wall of the first bracket 3 to the outside of the first bracket 3, and the traction rope 18 is supported by a fixed pulley on the outside of the first bracket 3. By supporting the traction rope 18 with a fixed pulley, the traction rope 18 can be placed on the outside of the first bracket 3.

[0033] Please refer to the above embodiments for further details. Figure 1The top of the detection device 1 is provided with a connection port 2 for connecting a knock sensor. By connecting the connection port 2 and the interface of the knock sensor, the data measured by the knock sensor can be transmitted to the detection device 1.

[0034] In practical operation, the operator first adjusts the positive and negative lead screws 5 according to the size of the knock sensor. Rotating the positive and negative lead screws 5 makes the two sets of moving seats 7 move closer or further apart, so that the two sets of clamping blocks 11 can clamp the sensor under the action of the first spring 10.

[0035] After the distance adjustment of the movable seat 7 is completed, the operator rotates the rotating rod 17 to actively wind the traction rope 18, which in turn pulls the two sets of fixing blocks 9 away from each other, that is, pulls the two sets of clamping blocks 11 away from each other. The two sets of clamping blocks 11 moving away from each other will compress the first spring 10. Next, the operator places the knock sensor on the top of the second bracket 4, releases the rotating rod 17, and under the reset action of the first spring 10, the two sets of clamping blocks 11 clamp the sensor. Then, the sensor interface and the connection port 2 are connected, and the drive component 16 is started. The drive component 16 repeatedly strikes the striking plate 14, and the end of the striking plate 14 strikes the bottom of the second bracket 4 in a regular manner. The vibration received by the second bracket 4 is transmitted to the sensor, and the detection device 1 displays the sensor's vibration data.

[0036] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A mold for an automotive knock sensor, comprising a detection device (1), characterized in that: The testing device (1) is provided with a first bracket (3) on one side, and a second bracket (4) is provided on the inner side of the first bracket (3). The inner side of the first bracket (3) is rotatably connected with a positive and negative screw (5). The external threads of the positive and negative screw (5) are connected with two sets of movable seats (7). The bottom of the two sets of movable seats (7) is movably installed with two sets of fixed rods (8). The outside of the two sets of fixed rods (8) is fitted with a first spring (10). One end of the two sets of fixed rods (8) is provided with a fixed block (9), and the other end of the two sets of fixed rods (8) is provided with a clamping block (11). The inner side of the first bracket (3) is provided with a fourth bracket (13). The top of the fourth bracket (13) is rotatably connected with a striking plate (14), and one end of the striking plate (14) is connected with a driving assembly (16).

2. The mold for an automotive knock sensor according to claim 1, characterized in that: The inner side of the first bracket (3) is provided with two sets of guide rods (6), and the two sets of guide rods (6) and the movable seat (7) are movably connected through each other.

3. The mold for an automotive knock sensor according to claim 2, characterized in that: A third bracket (12) is provided on the inner side of the first bracket (3) below the striking plate (14), and the top of the third bracket (12) and the bottom of the striking plate (14) are connected by a second spring (15).

4. The mold for an automotive knock sensor according to claim 3, characterized in that: The top of the testing device (1) is provided with a rotating rod (17), and one side of each of the two sets of fixed blocks (9) is connected to a traction rope (18), and the traction rope (18) is wrapped around the outside of the rotating rod (17).

5. A mold for an automotive knock sensor according to claim 4, characterized in that: The traction rope (18) extends through the outer wall of the first bracket (3) to the outside of the first bracket (3), and the traction rope (18) is supported by a fixed pulley on the outside of the first bracket (3).

6. The mold for an automotive knock sensor according to claim 1, characterized in that: The top of the detection device (1) is provided with a connection port (2) for connecting a knock sensor.

Images