Detector

Abstract

The utility model discloses a detector, and relates to the technical field of detectors, the detector comprises a support, a control arm and a sensor, the support is provided with an upper limiting block and a lower limiting block; a connecting block is formed at one end of the control arm, the connecting block is rotationally installed on the support, and the control arm is used for abutting against the upper limiting block or the lower limiting block; the sensor is connected with the connecting block, and the other end of the sensor is connected with a detection circuit used for detecting the voltage of the sensor. The sensor is equivalent to a slide rheostat, and when the connecting block rotates, the slide rheostat generates a resistance value change, so that after the detection circuit is connected, resistors with different resistance values are connected into the detection circuit, different voltages are obtained, and whether the sensor has a fault or not is judged; the upper limiting block and the lower limiting block are arranged on the support, the control arm abuts against the upper limiting block and the lower limiting block, and therefore the control arm can be accurately adjusted to a specified detection angle.

Description

Technical Field

[0001] The utility model relates to the technical field of detectors, in particular to a detector. Background Art

[0002] When a vehicle's light height control system fails, it is usually related to the light height control sensor. Under a certain power supply voltage, adjust the angle of the light height control sensor control arm. If the sensor's internal circuit is short-circuited, open-circuited, or malfunctions, you need to use a voltmeter or other tool to measure the voltage at the specified terminal.

[0003] In the prior art, an operator manually adjusts the angle of the sensor and then performs measurement. However, in this method, it is difficult for the operator to manually adjust the angle of the control arm to a specified detection angle during the operation.

[0004] Therefore, it is necessary to provide a new detector to solve the above-mentioned technical problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a detector, aiming to improve the technical problem in the prior art that the angle of the control arm cannot be accurately adjusted to a specified detection angle.

[0006] In order to achieve the above-mentioned purpose, the detector proposed by the utility model comprises:

[0007] A bracket, wherein the bracket is provided with an upper limit block and a lower limit block;

[0008] A control arm, wherein a connection block is formed at one end of the control arm, the connection block is rotatably mounted on the bracket, and the control arm is used to abut against the upper limit block or the lower limit block;

[0009] A sensor is connected to the connection block, and the other end of the sensor is connected to a detection circuit, and the detection circuit is used to detect the voltage of the sensor.

[0010] In one embodiment, the sensor includes a first connection terminal, a second connection terminal and a third connection terminal, the detection circuit includes a measuring meter and a power supply, the positive pole of the power supply is electrically connected to the third connection terminal, the negative pole of the power supply is electrically connected to the first connection terminal, the two test leads of the measuring meter are electrically connected to the first connection terminal and the second connection terminal respectively, and the measuring meter is used to detect the voltage between the first connection terminal and the second connection terminal.

[0011] In one embodiment, the measuring meter is a voltmeter.

[0012] In one embodiment, the detector further includes an indicator light, and the indicator light is connected in series with the power supply.

[0013] In one embodiment, the detector further includes a detection switch, and the detection switch is connected in series with the power supply.

[0014] In one embodiment, the detector also includes a torsion spring, the bracket includes an extending shaft, the torsion spring is sleeved on the extending shaft, and one end of the torsion spring is connected to the bracket, the connecting block is rotatably sleeved on the extending shaft, and the other end of the torsion spring is connected to the connecting block.

[0015] In one embodiment, the bracket includes a base, a first support rod and a second support rod, the first support rod is mounted on the base, the second support rod is telescopically mounted on the first support rod, and the connecting block is rotatably mounted on the second support rod.

[0016] In one embodiment, the first support rod is formed with first mounting holes spaced apart along the length direction of the first support rod, and the second support rod is formed with second mounting holes spaced apart along the length direction of the second support rod, and the detector further includes a first fastener, there is at least one first fastener, the number of the first mounting holes is multiple, the number of the second mounting holes is multiple, and the first fastener passes through one of the first mounting holes and is installed in one of the second mounting holes.

[0017] In one embodiment, the bracket further includes a limit rod, which is mounted on the base, the base is formed with a first slide groove, and the limit rod is slidably mounted in the first slide groove so that the limit rod can slide toward or away from the first support rod.

[0018] In one embodiment, the limit rod is formed with a second slide groove and a third slide groove spaced apart along the length direction of the limit rod, the upper limit block is slidably mounted on the second slide groove, and the lower limit block is slidably mounted on the third slide groove.

[0019] In the above scheme, the detector includes a bracket, a control arm and a sensor. The bracket is provided with an upper limit block and a lower limit block; a connection block is formed at one end of the control arm, and the connection block is rotatably installed on the bracket, and the control arm is used to abut against the upper limit block or the lower limit block; the sensor is connected to the connection block, and the other end of the sensor is connected to a detection circuit, and the detection circuit is used to detect the voltage of the sensor. The sensor is equivalent to a sliding rheostat in the entire detector. When the connection block rotates, it is equivalent to the sliding rheostat producing a change in resistance value. After connecting to the detection circuit, it is equivalent to connecting resistors with different resistance values ​​in the detection circuit, thereby obtaining different voltages. The different voltage values ​​obtained by measurement are compared with the standard voltage value after the control arm is rotated, so as to determine whether the sensor has a fault; specifically, the control arm is kept horizontal in normal state. At this time, the voltage value when the control arm is horizontal can be detected by the detection circuit, and the voltage value can be compared with the standard voltage value when the control arm is horizontal; the operator pushes the control arm to rotate so that the control arm abuts against the upper limit block. For example, the control arm rotates 30° clockwise, so the sensor also rotates, resulting in a change in resistance value. The detection circuit detects the voltage value and compares the voltage value with the standard voltage value when the control arm rotates 30° clockwise; the operator pushes the control arm to rotate so that the control arm abuts against the lower limit block, for example, the control arm rotates 30° counterclockwise, so the sensor also rotates, resulting in a change in resistance value. The detection circuit detects the voltage value and compares the voltage value with the standard voltage value when the control arm rotates 30° counterclockwise; after all the above voltage values ​​are compared, if they are basically the same, it indicates that there is no fault, and if there is a large difference, it indicates that the sensor is faulty. The technical solution of the utility model adopts the method of rotating the control arm on the bracket, and arranging the upper limit block and the lower limit block on the bracket, and the control arm abuts against the upper limit block and the lower limit block respectively, so that the control arm can be accurately adjusted to the specified detection angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a detector provided by the utility model;

[0022] Figure 2 A circuit diagram of an embodiment of a detection circuit provided by the utility model;

[0023] Figure 3A structural schematic diagram of an embodiment of a bracket provided by the utility model from a first perspective.

[0024] Description of Figure Numbers:

[0025] 100. detector; 1. bracket; 2. control arm; 3. sensor; 4. upper limit block; 5. lower limit block; 21. connecting block; 6. detection circuit; 31. first connecting terminal; 32. second connecting terminal; 33. third connecting terminal; 61. measuring meter; 62. power supply; 7. indicator light; 8. detection switch; 11. base; 12. first support rod; 13. second support rod; 9. first fastener; 121. first mounting hole; 131. second mounting hole; 14. limit rod; 141. second slide slot; 142. third slide slot; 101. torsion spring; 15. extending shaft.

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] 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.

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0030] See also Figure 1 and Figure 2 The utility model proposes a detector 100, including a bracket 1, a control arm 2 and a sensor 3. The bracket 1 is provided with an upper limit block 4 and a lower limit block 5; a connecting block 21 is formed at one end of the control arm 2, and the connecting block 21 is rotatably installed on the bracket 1, and the control arm 2 is used to abut against the upper limit block 4 or the lower limit block 5; the sensor 3 is connected to the connecting block 21, and the other end of the sensor 3 is connected to a detection circuit 6, and the detection circuit 6 is used to detect the voltage of the sensor 3. The sensor 3 is equivalent to a sliding rheostat in the entire detector 100. When the connecting block 21 rotates, it is equivalent to the sliding rheostat producing a change in resistance value. After being connected to the detection circuit 6, it is equivalent to connecting resistors with different resistance values ​​in the detection circuit 6, thereby obtaining different voltages. The different voltage values ​​obtained by measurement are compared with the standard voltage value after the control arm 2 is rotated to determine whether the sensor 3 has a fault. Specifically, the control arm 2 is kept horizontal in normal state. At this time, the voltage value when the control arm 2 is horizontal can be detected by the detection circuit 6, and the voltage value can be compared with the standard voltage value when the control arm 2 is horizontal. The operator pushes the control arm 2 to rotate so that the control arm 2 is close to the upper limit. When the control arm 2 is rotated 30° clockwise, the sensor 3 is also rotated, and the resistance value changes. The detection circuit 6 detects the voltage value and compares the voltage value with the standard voltage value when the control arm 2 is rotated 30° clockwise; when the operator pushes the control arm 2 to rotate so that the control arm 2 is in contact with the lower limit block 5, for example, the control arm 2 is rotated 30° counterclockwise, the sensor 3 is also rotated, and the resistance value changes. The detection circuit 6 detects the voltage value and compares the voltage value with the standard voltage value when the control arm 2 is rotated 30° counterclockwise; after all the above voltage values ​​are compared, if they are basically the same, it indicates that there is no fault. When there is a large difference, it indicates that the sensor 3 is faulty. The technical solution of this embodiment adopts the method of rotating the control arm 2 on the bracket 1, and setting the upper limit block 4 and the lower limit block 5 on the bracket 1, and the control arm 2 is respectively in contact with the upper limit block 4 and the lower limit block 5, so that the control arm 2 can be accurately adjusted to the specified detection angle.

[0031] See also Figure 1 and Figure 2In one embodiment, the sensor 3 includes a first connection terminal 31, a second connection terminal 32 and a third connection terminal 33, the detection circuit 6 includes a measuring meter 61 and a power supply 62, the positive electrode of the power supply 62 is electrically connected to the third connection terminal 33, the negative electrode of the power supply 62 is electrically connected to the first connection terminal 31, the two test leads of the measuring meter 61 are electrically connected to the first connection terminal 31 and the second connection terminal 32 respectively, and the measuring meter 61 is used to detect the voltage between the first connection terminal 31 and the second connection terminal 32. By setting the power supply 62, the voltage required for normal operation of the sensor 3 can be provided to ensure that the sensor 3 can be normally used, thereby ensuring normal detection, so that it is no longer necessary to connect the power supply 62 before each measurement, reducing the difficulty of operation for operators.

[0032] In one embodiment, the measuring meter 61 is a voltmeter. By setting the voltmeter, there is no need to adjust the measurement mode, and the voltage can be directly measured. In addition, the voltmeter is more compact and light, and the measurement results can be observed intuitively.

[0033] See also Figure 1 and Figure 2 In one embodiment, the detector 100 further includes an indicator light 7, which is connected in series with the power supply 62. The indicator light 7 is connected in series with the power supply 62. When the sensor 3 rotates, it is equivalent to connecting resistors of different resistance values ​​in series with the detection circuit 6, which will cause different currents, and the indicator light 7 will emit light of different brightness, so that the operator can observe the reading of the measuring meter 61 as soon as an abnormality occurs. Through such a setting, the operator can be reminded that the sensor 3 may be abnormal.

[0034] See also Figure 1 and Figure 2 In one embodiment, the detector 100 further includes a detection switch 8, which is connected in series with the power supply 62. By setting the detection switch 8, the detection circuit 6 does not need to be connected for a long time. It only needs to close the detection switch 8 to connect the detection circuit 6 when the control arm 2 rotates to the angle to be measured, and then the detection circuit 6 can be protected and the service life of the detection circuit 6 can be greatly increased. For example, when the detection switch 8 is closed, the control arm 2 is kept in a horizontal standard position, the voltage indication number is read, and compared with the specification value 2.5V, to determine whether the sensor 3 is abnormal; then the detection switch 8 is disconnected, the control arm 2 is pushed to abut against the upper limit block 4, that is, the control arm 2 rotates to +30°, the detection switch 8 is closed again, the voltage indication number is read, and compared with the specification value 3.83V, to determine whether the sensor 3 is abnormal; then the detection switch 8 is disconnected again, the control arm 2 is pushed to abut against the lower limit block 5, that is, the control arm 2 rotates to -30°, the detection switch 8 is closed again, the voltage indication number is read, and compared with the specification value 1.17V, to determine whether the sensor 3 is abnormal.

[0035] See also Figure 3 In one embodiment, the detector 100 further includes a torsion spring 101, the bracket 1 includes an extension shaft 15, the torsion spring 101 is sleeved on the extension shaft 15, and one end of the torsion spring 101 is connected to the bracket 1, the connection block 21 is rotatably sleeved on the extension shaft 15, and the other end of the torsion spring 101 is connected to the connection block 21. By providing the torsion spring 101, when it is not necessary to rotate, the torsion spring 101 allows the connection block 21 to maintain its original state without being affected by gravity, that is, the connection block 21 can maintain a horizontal position; in this way, when the voltage value of the control arm 2 is detected when it is in a horizontal position, it is ensured that the control arm 2 can accurately maintain a horizontal position.

[0036] See also Figure 1 In one embodiment, the bracket 1 includes a base 11, a first support rod 12 and a second support rod 13. The first support rod 12 is installed on the base 11, the second support rod 13 is telescopically installed on the first support rod 12, and the connecting block 21 is rotatably installed on the second support rod 13. By telescopically setting the first support rod 12 and the second support rod 13, the height of the control arm 2 can be adjusted, thereby adjusting the rotation angle of the control arm 2, that is, after adjusting the height of the control arm 2, after the control arm 2 abuts against the upper limit block 4 and the lower limit block 5, the angle of the control arm 2 is changed compared to the original position, so that more angles can be detected.

[0037] See also Figure 1 In one embodiment, the first support rod 12 is formed with first mounting holes 121 spaced apart along the length direction of the first support rod 12, and the second support rod 13 is formed with second mounting holes 131 spaced apart along the length direction of the second support rod 13. The detector 100 further includes a first fastener 9, at least one first fastener 9, a plurality of first mounting holes 121, a plurality of second mounting holes 131, and the first fastener 9 is installed in one of the second mounting holes 131 through one of the first mounting holes 121. By providing the first fastener 9, after adjusting the height of the control arm 2, even if the second support rod 13 extends out of the first support rod 12 or retracts into the first support rod 12, the first support rod 12 and the second support rod 13 are fixed to ensure the accuracy of the measurement.

[0038] In one embodiment, the bracket 1 further includes a limit rod 14, which is mounted on the base 11, and the base 11 is formed with a first slide groove, and the limit rod 14 is slidably mounted in the first slide groove, so that the limit rod 14 can slide toward or away from the first support rod 12. By enabling the limit rod 14 to approach or move away from the first support rod 12, after the control arm 2 abuts against the upper limit block 4 and the lower limit block 5, the angle of the control arm 2 changes compared to the original position, thereby achieving the adjustment of the angle of the control arm 2, so that more angles can be detected.

[0039] See also Figure 1 In one embodiment, the limit rod 14 is formed with a second slide groove 141 and a third slide groove 142 spaced apart along the length direction of the limit rod 14, the upper limit block 4 is slidably mounted on the second slide groove 141, and the lower limit block 5 is slidably mounted on the third slide groove 142. By making the upper limit block 4 and the lower limit block 5 move away from or close to each other, after the control arm 2 abuts against the upper limit block 4 and the lower limit block 5, the angle of the control arm 2 changes compared to the original position, thereby achieving the adjustment of the angle of the control arm 2, which can further increase the number of detection angles.

[0040] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A detector, characterized in that: include: A bracket, wherein the bracket is provided with an upper limit block and a lower limit block; A control arm, wherein a connection block is formed at one end of the control arm, the connection block is rotatably mounted on the bracket, and the control arm is used to abut against the upper limit block or the lower limit block; A sensor is connected to the connection block, and the other end of the sensor is connected to a detection circuit, and the detection circuit is used to detect the voltage of the sensor.

2. The detector according to claim 1, characterized in that: The sensor includes a first connection terminal, a second connection terminal and a third connection terminal, the detection circuit includes a measuring meter and a power supply, the positive pole of the power supply is electrically connected to the third connection terminal, the negative pole of the power supply is electrically connected to the first connection terminal, the two test leads of the measuring meter are electrically connected to the first connection terminal and the second connection terminal respectively, and the measuring meter is used to detect the voltage between the first connection terminal and the second connection terminal.

3. The detector according to claim 2, characterized in that: The measuring meter is a voltmeter.

4. The detector according to claim 2, characterized in that: The detector also includes an indicator light, which is connected in series with the power supply.

5. The detector according to claim 2, characterized in that: The detector also includes a detection switch, which is connected in series with the power supply.

6. The detector according to claim 1, characterized in that: The detector also includes a torsion spring, the bracket includes an extension shaft, the torsion spring is sleeved on the extension shaft, and one end of the torsion spring is connected to the bracket, the connecting block is rotatably sleeved on the extension shaft, and the other end of the torsion spring is connected to the connecting block.

7. The detector according to claim 1, characterized in that: The bracket includes a base, a first support rod and a second support rod, the first support rod is installed on the base, the second support rod is telescopically installed on the first support rod, and the connecting block is rotatably installed on the second support rod.

8. The detector according to claim 7, characterized in that: The first support rod is formed with first mounting holes spaced apart along the length direction of the first support rod, and the second support rod is formed with second mounting holes spaced apart along the length direction of the second support rod. The detector also includes a first fastener, there is at least one first fastener, the number of the first mounting holes is multiple, the number of the second mounting holes is multiple, and the first fastener passes through one of the first mounting holes and is installed in one of the second mounting holes.

9. The detector according to claim 7, characterized in that: The bracket further comprises a limiting rod, wherein the limiting rod is mounted on the base, wherein the base is formed with a first sliding groove, and the limiting rod is slidably mounted in the first sliding groove so that the limiting rod can slide towards or away from the first support rod.

10. The detector according to claim 9, characterized in that: The limiting rod is formed with a second slide groove and a third slide groove spaced apart along the length direction of the limiting rod, the upper limit block is slidably mounted on the second slide groove, and the lower limit block is slidably mounted on the third slide groove.

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