Straightness detection device for semitrailer girder

Abstract

The utility model relates to the technical field of straightness detection devices, in particular to a semitrailer girder straightness detection device which comprises a linear laser detector, a fixing bolt, a supporting plate and a connecting plate, the linear laser detector is arranged on the supporting plate in a sliding mode, the connecting plate is arranged on the linear laser detector in a sliding mode, and the fixing bolt is arranged on the connecting plate. Two groups of fixing bolts are arranged on the linear laser detector in a sliding manner, the two groups of fixing bolts are clamped into the connecting plate, two same fixing bolts are arranged on the linear laser detector, the fixing bolt far away from the supporting plate is clamped into the connecting plate, and the fixing bolt far away from the connecting plate is clamped into the supporting plate. By starting the linear laser detector, the laser beam penetrates through the observation hole, then the pulling plate is pulled leftwards, the tape band in the tape is pulled out, in the pulling process, when the position of the pulling plate deviates, the laser beam of the linear laser detector can irradiate the pulling plate to warn a user, it is indicated that the tape band is not parallel to the laser line, and the tape band is not parallel to the laser line. Therefore, whether the ruler tape deviates or not can be visually displayed, and the data accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of straightness detection devices, in particular to a straightness detection device for a semi-trailer beam. Background Art

[0002] Semi-trailer beam straightness test refers to a measurement of the semi-trailer beam to ensure that it still maintains good straightness after manufacturing or maintenance.

[0003] The current existing technology uses high-precision laser transmitters and receivers to determine the straightness of the beam by emitting parallel light beams. During measurement, the laser measuring instrument needs to be placed flat on the ground so that the laser forms a straight line on the vehicle beam. However, the distance on the beam surface needs to be measured manually with tools such as a tape measure or ruler. Due to the limitations of human hand stability and visual judgment, it is difficult to ensure that each stretch is completely straight and parallel to the laser line, which can easily lead to deviations in the tested values.

[0004] Therefore, it is necessary to provide a semi-trailer beam straightness detection device that assists in aligning the ruler tape and the laser beam. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology in which the distance on the beam surface needs to be measured manually using tools such as a tape measure or a ruler, it is difficult to ensure that each stretch is completely straight and parallel to the laser line due to the limitations of human hand stability and visual judgment, which easily leads to deviations in the tested values. The utility model provides a semi-trailer beam straightness detection device that assists in aligning the tape measure with the laser beam.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions: a semi-trailer frame straightness detection device, including a linear laser detector, a fixing bolt, a support plate and a connecting plate, a linear laser detector is slidably provided on the support plate, a connecting plate is slidably provided on the linear laser detector, two groups of fixing bolts are slidably provided on the linear laser detector, the two groups of fixing bolts are clamped into the connecting plate, two identical fixing bolts are provided on the linear laser detector, the fixing bolt away from the support plate is clamped into the connecting plate, and the fixing bolt away from the connecting plate is clamped into the support plate, and also includes a tape measure and a pull plate, a tape measure is installed on the connecting plate, a pull plate is fixedly connected between the two tape measures, an observation hole is opened on the pull plate, and the observation hole and the laser emission point of the linear laser detector are located on the same horizontal line.

[0007] As a further preferred solution, it also includes a fixed plate, a transmitter, a sensing plate, a controller and an alarm. Two fixed plates are fixed on the connecting plate, a transmitter is installed on the fixed plate, two sensing plates are installed on the pull plate, the transmitter and the adjacent sensing plates are located on the same horizontal line, the controller is installed on the pull plate, the controller is electrically connected to the sensing plate, the controller is located on the left side of the observation hole, the alarm is installed on the pull plate, the alarm is located on the right side of the observation hole, and the controller is electrically connected to the alarm.

[0008] As a further preferred solution, it also includes a fixed seat, a flap, a suction cup, a ball valve, a swivel, a clamping plate, a guide rod and a return spring. The fixed seat is fixedly connected to the connecting plate, and a flap is rotatably provided on the fixed seat. Two suction cups are fixedly connected to the flap, and a swivel is rotatably provided on the two suction cups. The ball valve is fixedly connected to the swivel, and the ball valve is located in adjacent suction cups. A guide rod is fixedly connected to the fixed seat, and a clamping plate is slidably provided on the guide rod, and the clamping plate is clamped in the flap. A return spring is mounted on the guide rod, and both ends of the return spring are respectively connected to the fixed seat and the clamping plate.

[0009] As a further preferred solution, a corrugated sleeve is also included. The corrugated sleeve is arranged between the clamping plate and the fixing seat, and the return spring is located in the corrugated sleeve.

[0010] As a further preferred solution, a counterweight block is also included, and the counterweight block is installed on the support plate.

[0011] As a further preferred solution, a magnetic plate is also included, and the pull plate is embedded with a magnetic plate.

[0012] Compared with the existing technology, the utility model has the following technical effects: 1. By starting the linear laser detector, the laser beam passes through the observation hole, and then the pull plate is pulled to the left to pull out the tape in the tape measure. During the pulling process, when the position of the pull plate is offset, the laser beam of the linear laser detector will shine on the pull plate to alert the user, indicating that the tape is not parallel to the laser line, thereby intuitively showing whether the tape is offset, ensuring data accuracy.

[0013] 2. The transmitter emits laser light to the sensor plates on the same horizontal line. When the pull plate deviates, the sensor plates on the same horizontal line no longer receive the laser signal. The sensor plates immediately send a signal to the controller, causing the controller to control the alarm to sound an alarm, thereby alerting the user, thereby ensuring measurement accuracy.

[0014] 3. By moving the card plate upward, the card plate is separated from the flap, and the return spring is compressed. Then, the angle of the fixed seat suction cup is rotated so that the suction cup fits the right end of the vehicle beam. Then, the swivel is rotated to drive the air valve to rotate, thereby controlling the air pressure in the suction cup, so that the device is fixed on the vehicle beam and can perform linear measurement on vehicle beams of different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the connecting plate, measuring tape and pulling plate of the utility model.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the observation hole, fixing plate and laser instrument of the utility model.

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the sensor plate, controller and alarm of the utility model.

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing seat, the flap and the suction cup of the utility model.

[0020] The markings in the figure are: 1: linear laser detector, 2: fixing bolt, 3: support plate, 4: connecting plate, 5: tape measure, 6: pull plate, 7: observation hole, 8: fixing plate, 9: transmitter, 10: sensor plate, 11: controller, 12: alarm, 13: fixing seat, 14: flap, 15: suction cup, 16: ball valve, 17: swivel, 18: clamping plate, 19: guide rod, 20: return spring, 21: bellows sleeve, 22: counterweight, 23: magnetic plate. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to specific embodiments. It should be noted that, unless otherwise specified or limited, terms such as "dispose," "install," "connect," and "connect" should be understood in a broad sense. For example, "connect" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; or it may refer to internal communication between two components. A person skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0022] Example 1: A semi-trailer beam straightness detection device, see Figures 1-4As shown, it includes a linear laser detector 1, a fixing bolt 2, a support plate 3 and a connecting plate 4. The linear laser detector 1 is slidably provided on the upper part of the support plate 3, and the connecting plate 4 is slidably provided on the linear laser detector 1. Two groups of fixing bolts 2 are slidably provided on the upper and lower parts of the linear laser detector 1 at even intervals. The same fixing bolts 2 are symmetrically provided on the left and right sides of the middle part of the linear laser detector 1. The two groups of fixing bolts 2 located at the upper and lower parts of the detector are snapped into the connecting plate 4, the fixing bolt 2 located on the left side of the middle of the detector is snapped into the connecting plate 4, and the fixing bolt 2 located on the right side of the middle of the detector is snapped into the support plate 3. It also includes a tape measure 5 and a pull plate 6. The connecting plate 4 is installed with a tape measure 5. The tape measure 5 consists of a tape, a spiral spring and a hook. The hook is located at the end of the tape measure. A pull plate 6 is fixedly connected between the hooks of the two tape measures 5. An observation hole 7 is opened on the pull plate 6. The observation hole 7 is located on the same horizontal line as the laser emission point of the linear laser detector 1, and the laser emitted by the linear laser detector 1 passes through the observation hole 7.

[0023] See Figure 1 and Figure 2 As shown, a counterweight block 22 is also included, and the counterweight block 22 is provided at the bottom of the support plate 3 by means of bolt connection.

[0024] See Figure 1 and Figure 2 As shown, a magnetic plate 23 is also included. The pull plate 6 is embedded with the magnetic plate 23 , and the magnetic plate 23 is located on the left side of the controller 11 .

[0025] When it is necessary to perform a linear detection on the semi-trailer beam, the device is moved to the right end of the vehicle beam, and the linear laser detector 1 is started to make the laser beam pass through the observation hole 7. Then the pull plate 6 is pulled to the left to pull out the tape in the tape measure 5. During the pulling process, when the position of the pull plate 6 is offset, the laser beam of the linear laser detector 1 will shine on the pull plate 6 to alert the user, indicating that the tape is not parallel to the laser line, thereby intuitively showing whether the tape is offset and ensuring data accuracy. When the tape is pulled to the other end of the vehicle beam, the pull plate 6 is hung on the end of the vehicle beam so that the magnetic plate 23 will fix the plate on the vehicle beam. Finally, the data can be recorded. The counterweight block 22 can increase the weight of the device to avoid displacement during measurement.

[0026] Example 2: Based on Example 1, refer to Figure 3-Figure 5As shown, it also includes a fixing plate 8, a transmitter 9, a sensing plate 10, a controller 11 and an alarm 12. Two fixing plates 8 are provided on the rear of the connecting plate 4 by welding. The upper part of the fixing plate 8 is provided with a transmitter 9 by bolt connection. The upper and lower rear sides of the pull plate 6 are both provided with sensing plates 10 by bolt connection. The transmitter 9 and the adjacent sensing plates 10 are located on the same horizontal line. The middle rear side of the pull plate 6 is provided with a controller 11 by bolt connection. The controller 11 is electrically connected to the sensing plate 10 and is located on the left side of the observation hole 7. The middle rear side of the pull plate 6 is provided with an alarm 12 by bolt connection. The alarm 12 is located on the right side of the observation hole 7 and the controller 11 is electrically connected to the alarm 12.

[0027] See Figure 4 As shown, a corrugated sleeve 21 is further included. The corrugated sleeve 21 is arranged between the clamping plate 18 and the fixing seat 13 , and the return spring 20 is located in the corrugated sleeve 21 .

[0028] When the tape is pulled out for measurement, the transmitter 9 emits a laser to the sensing plate 10 located on the same horizontal line. When the pulling plate 6 deviates, the sensing plate 10 located on the same horizontal line no longer receives the laser signal. The sensing plate 10 immediately transmits a signal to the controller 11, so that the controller 11 controls the alarm 12 to sound an alarm, thereby alerting the user and ensuring measurement accuracy.

[0029] See Figure 4 and Figure 5 As shown, it also includes a fixed seat 13, a flap 14, a suction cup 15, a ball valve 16, a swivel 17, a clamping plate 18, a guide rod 19 and a return spring 20. The rear side of the connecting plate 4 is provided with a fixed seat 13 by welding. The rear part of the fixed seat 13 is rotatably provided with a flap 14. The left part of the flap 14 is fixedly connected with a suction cup 15 symmetrically up and down. The rear of the two suction cups 15 is rotatably provided with a swivel 17. The swivel 17 consists of two hand wheels and a rotating rod. The front and rear ends of the swivel 17 are fixedly connected with a ball valve 16. The ball valve 16 is located in the adjacent suction cup 15. A guide rod 19 is provided on the top of the fixed seat 13 by welding. A clamping plate 18 is slidably provided on the guide rod 19. The clamping plate 18 is stuck in the flap 14. A return spring 20 is sleeved on the guide rod 19. The two ends of the return spring 20 are respectively connected to the fixed seat 13 and the clamping plate 18.

[0030] When it is necessary to measure a shorter vehicle beam, remove the fixing bolt 2 connecting the support plate 3 and the linear laser detector 1, so that the detection mechanism can be disassembled, and then move the card plate 18 upward to disengage the card plate 18 from the flap 14, and the return spring 20 is compressed. Then rotate the angle of the suction cup 15 of the fixing seat 13 so that the suction cup 15 fits the right end of the vehicle beam, and then rotate the swivel 17 to drive the air valve to rotate, so as to control the air pressure in the suction cup 15, so that the device is fixed on the vehicle beam, and can perform linear measurement of vehicle beams of different heights. Finally, release the card plate 18, so that the return spring 20 returns to its original state and drives the card plate 18 back into the flap 14, and then continue to measure the vehicle beam. The corrugated sleeve 21 can protect the return spring 20 to prevent the return spring 20 from being stuck due to external factors.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A semi-trailer beam straightness detection device, comprising a linear laser detector (1), a fixing bolt (2), a support plate (3) and a connecting plate (4), wherein the linear laser detector (1) is slidably provided on the support plate (3), the connecting plate (4) is slidably provided on the linear laser detector (1), two groups of fixing bolts (2) are slidably provided on the linear laser detector (1), the two groups of fixing bolts (2) are snapped into the connecting plate (4), the linear laser detector (1) is provided with two identical fixing bolts (2), the fixing bolt (2) away from the support plate (3) is snapped into the connecting plate (4), and the fixing bolt (2) away from the connecting plate (4) is snapped into the support plate (3), and the device is characterized in that: The device also includes a measuring tape (5) and a pull plate (6). The measuring tape (5) is installed on the connecting plate (4). The pull plate (6) is fixedly connected between the two measuring tapes (5). The pull plate (6) is provided with an observation hole (7). The observation hole (7) and the laser emission position of the linear laser detector (1) are located on the same horizontal line.

2. A semi-trailer beam straightness detection device according to claim 1, characterized in that: The invention also includes a fixed plate (8), a transmitter (9), a sensing plate (10), a controller (11) and an alarm (12). Two fixed plates (8) are fixedly connected to the connecting plate (4). The fixed plate (8) is equipped with a transmitter (9). Two sensing plates (10) are equipped on the pulling plate (6). The transmitter (9) and the adjacent sensing plates (10) are located on the same horizontal line. The pulling plate (6) is equipped with a controller (11). The controller (11) is electrically connected to the sensing plates (10). The controller (11) is located on the left side of the observation hole (7). The pulling plate (6) is equipped with an alarm (12). The alarm (12) is located on the right side of the observation hole (7). The controller (11) is electrically connected to the alarm (12).

3. The semi-trailer beam straightness detection device according to claim 2, characterized in that: The invention also comprises a fixed seat (13), a flap (14), a sucker (15), a ball valve (16), a swivel (17), a clamping plate (18), a guide rod (19) and a return spring (20). The fixed seat (13) is fixedly connected to the connecting plate (4). The flip (14) is rotatably provided on the fixed seat (13). Two suckers (15) are fixedly connected to the flip (14). The two suckers (15) are rotatably provided with a swivel (17). A ball valve (16) is fixedly connected to the rotating ring (17), and the ball valve (16) is located in a nearby suction cup (15). A guide rod (19) is fixedly connected to the fixed seat (13), and a card plate (18) is slidably provided on the guide rod (19). The card plate (18) is stuck in the flap (14), and a return spring (20) is sleeved on the guide rod (19). The two ends of the return spring (20) are respectively connected to the fixed seat (13) and the card plate (18).

4. The semi-trailer beam straightness detection device according to claim 3, characterized in that: The utility model also comprises a corrugated sleeve (21), which is arranged between the clamping plate (18) and the fixing seat (13), and the return spring (20) is located in the corrugated sleeve (21).

5. The semi-trailer beam straightness detection device according to claim 4, characterized in that: It also includes a counterweight block (22), and the counterweight block (22) is installed on the support plate (3).

6. The semi-trailer beam straightness detection device according to claim 5, characterized in that: It also includes a magnetic plate (23), and the pull plate (6) is embedded with the magnetic plate (23).

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