CN221123839U - Measuring device for approach angle and departure angle of vehicle - Google Patents

Abstract

The utility model discloses a measuring device for a vehicle approach angle and a departure angle, which comprises a chassis, a rotating structure, a driving mechanism and a measuring structure, wherein the rotating structure comprises a first connecting rod and two rotating arms; the driving structure comprises a first driving component and a second driving component; the measuring structure comprises a measuring plate, wherein the measuring plate is supported on two rotating arms, a sliding groove is formed in the bottom of the measuring plate, the first driving component is used for driving the rotating arm to rotate relative to the chassis and driving the measuring plate to rotate relative to the chassis, so that the inclination angle of the measuring plate is adjusted, and the top of the measuring plate is abutted with the bottom plate of the vehicle; the second driving assembly is used for driving the measuring plate to be in or out of abutting connection with the tyre of the vehicle. The measuring device for the approach angle and the departure angle of the vehicle has high measuring accuracy.

Description

Measuring device for approach angle and departure angle of vehicle

Technical Field

The utility model relates to the technical field of automobiles, in particular to a measuring device for a vehicle approach angle and a vehicle departure angle.

Background

The approach angle and departure angle of the vehicle are important indexes reflecting the passing performance of the vehicle, and whether the vehicle is identified or accepted, the two parameters are subjected to experimental tests. The approach angle refers to the maximum angle between the ground plane and the plane tangential to the front wheel tires, and the departure angle refers to the maximum angle between the ground plane and the plane tangential to the rear wheel tires, which is rearward of the rear axle of the vehicle, above which all points and rigid parts of the vehicle lie.

In the existing measuring device for the approach angle and the departure angle of the vehicle, the chassis of the measuring device is rotated relatively through the measuring plate to measure the approach angle and the departure angle of the vehicle, in the measuring process, the chassis is required to be abutted against the bottom of the tire of the vehicle, the measuring plate is rotated relatively to the chassis to measure the maximum included angle between the ground plane and the tangent plane of the tire, when the approach angle and the departure angle are measured for a longer vehicle type of the vehicle body, the chassis cannot move to the bottom of the tire of the vehicle due to insufficient length of the chassis, so that the measurement of the approach angle and the departure angle is bothered, and the measuring plate is arranged above the chassis due to certain height of the chassis.

Disclosure of utility model

The utility model mainly aims to provide a measuring device for a vehicle approach angle and a departure angle, and aims to solve the technical problem that the existing measuring device for the vehicle approach angle and the departure angle is low in measuring accuracy.

In order to achieve the above object, the present utility model provides a vehicle approach angle and departure angle measuring apparatus, comprising:

A chassis including a first side and a second side disposed opposite in a lateral direction;

The rotating structure comprises a first connecting rod and two rotating arms, wherein the two rotating arms are arranged at intervals along the longitudinal direction and are respectively arranged at two sides of the chassis, the rotating arms extend along the transverse direction and are rotatably connected with the chassis, the first connecting rod is connected between the two rotating arms, and the top of each rotating arm is provided with a sliding rail extending along the transverse direction;

a drive structure comprising a first drive assembly and a second drive assembly;

The measuring structure comprises a measuring plate, the measuring plate comprises an abutting side and a free side which are transversely and oppositely arranged, the abutting side is arranged on the same side as the second side, the free side is arranged on the same side as the first side, the measuring plate is supported on two rotating arms, sliding grooves which are in sliding connection with the sliding rails are arranged at the bottom of the measuring plate corresponding to the positions of the sliding rails, the first driving assembly is used for driving the rotating arms to rotate relative to the chassis and driving the measuring plate to rotate relative to the chassis, so that the free side can lift relative to the abutting side, the inclination angle of the measuring plate can be adjusted, and the top of the measuring plate can abut against the bottom plate of a vehicle; the second driving assembly is used for driving the measuring plate to move along the sliding rail in a direction away from or close to the first side so as to enable the abutting side to abut against or separate from the tyre of the vehicle.

Optionally, the second driving assembly comprises a rotating rod extending along a longitudinal direction, two ends of the rotating rod are respectively rotatably arranged on the two rotating arms in a penetrating manner, a rack extending along a transverse direction is arranged at the bottom of the measuring plate, and a gear meshed with the rack is sleeved on the rotating rod; and the rotating rod is rotated so as to drive the rack and the measuring plate to move towards the direction close to or far away from the first side through the gear.

Optionally, the measuring structure further comprises a locking component, the locking component comprises a ratchet and a locking member, one end of the rotating rod extends out of the corresponding rotating arm and forms an extension portion, the ratchet is sleeved on the extension portion, and the locking member is used for locking or unlocking the ratchet.

Optionally, the number of the locking components is two, the two locking pieces are a first claw and a second claw respectively, the first claw and the second claw are respectively arranged at two sides of the extension part along the transverse direction, the two ratchets are a first ratchet and a second ratchet respectively, the first ratchet and the second ratchet are longitudinally sleeved on the extension part at intervals, and the first claw is used for extending into or separating from between any two adjacent gear teeth of the first ratchet so as to correspondingly lock or unlock the first ratchet; the second claw is used for extending into or separating from any two adjacent gear teeth of the second ratchet wheel so as to correspondingly lock or unlock the second ratchet wheel.

Optionally, the extension is kept away from the one end of rocking arm is connected with the handle, first jack catch with the top of second jack catch is connected with first action bars and second action bars respectively, first jack catch with the equal rotatable connection of second jack catch in the outside of rocking arm, first jack catch is used for under the drive of first action bars relative the rocking arm rotates to stretch into or deviate from between two arbitrary adjacent teeth of first ratchet, the second jack catch is used for under the drive of second action bars relative the rocking arm rotates to stretch into or deviate from between two arbitrary adjacent teeth of second ratchet.

Optionally, the first drive assembly includes the driving piece, the revolution mechanic still includes second connecting rod and two transfer arms, the transfer arm is along transversely extending, two transfer arms are along vertical interval setting up in two between the rocking arm, the first end of transfer arm with the chassis articulates, the second connecting rod passes the second end of transfer arm with the transfer arm articulates, the both ends of second connecting rod respectively with two the rocking arm articulates, the output shaft of driving piece with one of them the transfer arm is close to the position of second end articulates, the driving piece is along keeping away from the direction of first side is slope setting up.

Optionally, the number of the driving parts is two, and the output shafts of the two driving parts are hinged with the positions of the two driving arms close to the second ends respectively.

Optionally, the driving piece is a hydraulic cylinder, and the measuring device of the approach angle and the departure angle of the vehicle further comprises a hydraulic pump and an oil pipe, and the hydraulic pump is communicated with the hydraulic cylinder through the oil pipe.

Optionally, an inclined surface is formed at a position of the bottom of the measuring plate corresponding to the abutting side, and the inclined surface is inclined upward in a direction away from the first side.

Optionally, a plurality of travelling wheels are arranged at intervals at the bottom of the chassis; and/or the first side of the chassis is provided with a push-pull frame.

In the using process of the measuring device for the approach angle and the departure angle of the vehicle, taking the approach angle of the vehicle as an example, an operator moves the chassis to the head, drives the rotating arm to rotate relative to the chassis by the first driving piece, drives the measuring plate supported above the chassis to rotate, and enables the free end to ascend so as to enable the measuring plate to incline. An operator may use an angle gauge to place over the measurement plate to derive the value of the approach angle. The measuring process of the departure angle of the vehicle is similar to the measuring process of the approach angle of the vehicle. According to the device for measuring the approach angle and the departure angle of the vehicle, the measuring plate can move transversely relative to the chassis, and in the process of measuring the approach angle and the departure angle of the vehicle, the measuring plate can be abutted against the bottom of the tire of the vehicle, so that the accuracy of measurement is improved, and the accurate measurement of the approach angle and the departure angle of the vehicle is realized.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a device for measuring approach angle and departure angle of a vehicle according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the area A in FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 1 after the measurement plate is hidden;

FIG. 4 is an enlarged schematic view of a portion of the structure of FIG. 3;

Fig. 5 is a schematic structural diagram of the transfer arm, the transmission arm and the second connecting rod according to an embodiment of the utility model.

Figure 1 reference numerals illustrate:

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The technical solutions of the present embodiment will be clearly and completely described below with reference to the drawings in the present embodiment, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

The present utility model proposes a measuring device 100 for the approach and departure angles of a vehicle.

Referring to fig. 1 to 5, a vehicle approach angle and departure angle measuring device 100 of the present embodiment includes a chassis 1, a rotating structure 2, a driving structure 3, and a measuring structure 4, the chassis 1 including a first side 11 and a second side 12 disposed opposite to each other in a lateral direction; the rotating structure 2 comprises a first connecting rod 21 and two rotating arms 22, wherein the two rotating arms 22 are arranged at intervals along the longitudinal direction and are respectively arranged at two sides of the chassis 1, the rotating arms 22 extend along the transverse direction and are rotatably connected with the chassis 1, the first connecting rod 21 is connected between the two rotating arms 22, and the top of each rotating arm 22 is provided with a sliding rail 221 extending along the transverse direction; the drive structure 3 comprises a first drive assembly and a second drive assembly; the measuring structure 4 comprises a measuring plate 41, the measuring plate 41 comprises an abutting side 411 and a free side 412 which are transversely and oppositely arranged, the abutting side 411 is arranged on the same side as the second side 12, the free side 412 is arranged on the same side as the first side 11, the measuring plate 41 is supported on two rotating arms 22, sliding grooves 4131 which are in sliding connection with the sliding rails 221 are arranged at the bottom of the measuring plate 41 and correspond to the sliding rails 221, a first driving component is used for driving the rotating arms 22 to rotate relative to the chassis 1 and driving the measuring plate 41 to rotate relative to the chassis 1, so that the free side 412 is lifted relative to the abutting side 411, the inclination angle of the measuring plate 41 is adjusted, and the top of the measuring plate 41 is abutted against the bottom plate of the vehicle; the second driving assembly is used for driving the measuring plate 41 to move along the sliding rail 221 in a direction away from or towards the first side 11 so as to enable the abutting side 411 to abut against or be out of abutting contact with the tire of the vehicle.

In the technical solution of the present embodiment, the transverse direction is the left-right direction shown in fig. 1, the longitudinal direction is the front-back direction shown in fig. 1, the vertical direction is the up-down direction shown in fig. 1, and the measuring device 100 for the approach angle and the departure angle of the vehicle includes a chassis 1, a rotating structure 2, a driving structure 3, and a measuring structure 4. Wherein the chassis 1 plays a role of supporting the rotating structure 2, the driving structure 3 and the measuring structure 4, the chassis 1 comprises a first side 11 and a second side 12 which are oppositely arranged along the left-right direction, the first side 11 is arranged at the left side of the second side 12, the rotating structure 2 comprises a first connecting rod 21 and two rotating arms 22, the first connecting rod 21 plays a role of connecting the two rotating arms 22, the two rotating arms 22 are arranged at intervals along the front-back direction, the two rotating arms 22 are positioned at the front-back two sides of the chassis 1, the rotating arms 22 extend along the left-right direction, as the rotating arms 22 are hinged with the chassis 1 and can rotate relative to the chassis 1, the rotating arms 22 extend along the left-right direction to mean that the rotating arms 22 are positioned in a horizontal state, the rotating arms 22 extend along the left-right direction, the first connecting rod 21 is connected with the two rotating arms 22, so that the two rotating arms 22 can synchronously rotate in the process of rotating relative to the chassis 1, the top of each rotating arm 22 is provided with a sliding rail 221 extending along the left-right direction, the sliding rail 221 is arranged at the top of the rotating arm 22 along the length direction of the rotating arm 22, the bottom of the measuring plate 41 is provided with a sliding groove 4131, specifically, the position of the bottom of the measuring plate 41 corresponding to the two sliding rails 221 can be respectively connected with a sliding block 413, the bottom of the sliding block 413 can be provided with the sliding groove 4131, or the bottom of the measuring plate 41 can be directly provided with the sliding groove 4131, in this embodiment, it is preferable to connect the slider 413 to the bottom of the measuring plate 41, and by providing the slider 413, the length of the slide groove 4131 to be opened can be reduced, and the slide groove 4131 can slide relative to the slide rail 221, so that the measuring plate 41 slides in the left-right direction relative to the chassis 1. The drive structure 3 comprises a first drive member 311 and a second drive member 311, the measuring plate 41 comprising oppositely arranged abutment and free sides 412, the free sides 412 being provided with left sides of the abutment, the measuring plate 41 being supported on the two swivel arms 22. In the use of the device 100 for measuring the approach angle and the departure angle of the vehicle in this embodiment, taking the approach angle of the vehicle as an example, the operator moves the chassis 1 to the head, and drives the rotating arm 22 to rotate relative to the chassis 1 by the first driving member 311, so as to drive the measuring plate 41 supported above the chassis 1 to rotate, and lifts the free end to tilt the measuring plate 41, when the measuring plate 41 is tilted to a certain angle, the angle may be the approach angle of the vehicle, the operator drives the measuring plate 41 to move away from the first end 241 by using the second driving member 311, since the measuring plate 41 is slidably mounted above the rotating arm 22, therefore, the abutting side 411 of the measuring plate 41 can be moved to the right of the second side 12 of the chassis 1, so that the abutting end of the measuring plate 41 abuts against the bottom of the front tire of the vehicle, after which the operator continues to rotate the first driving member 311 relative to the chassis 1 to drive the rotating arm 22, so that the free end continues to rise until the measuring plate 41 abuts against the bottom plate of the vehicle, at which time the angle formed by the measuring plate 41 and the ground plane is the largest angle between the front tire of the vehicle and the ground plane, i.e. the approach angle of the vehicle. An operator may use an angle gauge to place over the measurement plate 41 to derive the value of the approach angle. It will be appreciated that the process of measuring the departure angle of the vehicle is similar to that of the approach angle of the vehicle described above, in which the operator moves the chassis 1 to the rear of the vehicle and causes the first driving member 311 to rotate the arm 22 relative to the chassis 1 to rotate the measuring plate 41 supported above the chassis 1 and raise the free end to tilt the measuring plate 41, and when the measuring plate 41 is tilted to an angle, which may be the departure angle of the approach vehicle, the operator drives the measuring plate 41 to move away from the first end 241 using the second driving member 311, since the measuring plate 41 is slidably mounted above the arm 22, therefore, the abutting side 411 of the measuring plate 41 can be moved to the right of the second side 12 of the chassis 1, so that the abutting end of the measuring plate 41 abuts against the bottom of the rear tire of the vehicle, after which the operator continues to rotate the first driving member 311 relative to the chassis 1 to drive the rotating arm 22, so that the free end continues to rise until the measuring plate 41 abuts against the bottom plate of the vehicle, at which time the angle formed by the measuring plate 41 and the ground plane is the largest angle between the rear tire of the vehicle and the ground plane, i.e. the departure angle of the vehicle. In the device for measuring the approach angle and the departure angle of the vehicle in the embodiment, the measuring plate 41 can move transversely relative to the chassis 1, and in the process of measuring the approach angle and the departure angle of the vehicle, the measuring plate 41 can be connected with the bottom of the tire of the vehicle, so that the accuracy of measurement is improved, and the accurate measurement of the approach angle and the departure angle of the vehicle is realized.

Further, the second driving assembly comprises a rotating rod 321 extending along the longitudinal direction, two ends of the rotating rod 321 are respectively rotatably penetrated through the two rotating arms 22, a rack 414 extending along the transverse direction is arranged at the bottom of the measuring plate 41, and a gear 3211 meshed with the rack 414 is sleeved on the rotating rod 321; the rotating rod 321 is rotated to drive the rack 414 and the measuring plate 41 to move toward or away from the first side 11 through the gear 3211. The second drive in this embodiment includes a rotation rod 321 extending in the front-rear direction, both ends of the rotation rod 321 respectively pass through the two rotating arms 22, and the rotation rod 321 can rotate relative to the rotating arms 22, the bottom of the measurement plate 41 is provided with a rack 414, a gear 3211 is sleeved on the rotation rod 321, the rack 414 is meshed with the gear 3211, when the rotation rod 321 rotates, the gear 3211 sleeved above the rotation rod 321 rotates, and the gear 3211 drives the rack 414 arranged at the bottom of the measurement plate 41 to move in the left-right direction after rotating, thereby realizing the movement of the measurement plate 41. In other embodiments, the second driving member 311 may be a cylinder, and the cylinder may be used to drive the sliding groove 4131 at the bottom of the measuring plate 41 to slide relative to the sliding rail 221 to realize the movement of the measuring plate 41, which is not limited in this embodiment of the present disclosure. The rotation of the rotating rod 321 is converted into the movement of the measuring plate 41 by adopting the matching of the rotating rod 321, the rack 414 and the gear 3211, so that the flexibility of the measuring plate 41 in the movement process can be measured, and the use convenience of the measuring device 100 for the approach angle and the departure angle of the vehicle in the embodiment is improved.

Still further, the measuring structure 4 further includes a locking assembly 42, the locking assembly 42 includes a ratchet and a locking member, one end of the rotating rod 321 extends out of the corresponding rotating arm 22 and forms an extension portion 3212, the ratchet is sleeved on the extension portion 3212, the locking member is used for locking or unlocking the ratchet, in this embodiment, one end of the rotating rod 321 extends out of the corresponding rotating arm 22, so to speak, the front end of the rotating rod 321 extends out of the rotating arm 22 located at the front side. Or the rear end of the swivel arm 22 protrudes outside the swivel arm 22 located at the rear side. The rocking arm 22 stretches out the outside of corresponding rocking arm 22 and forms extension 3212, and the cover is equipped with the ratchet on the extension 3212, adopts the retaining member to lock ratchet or unblock, can prevent that operating personnel from being in need of measuring board 41 to follow the side-to-side direction when removing, and the spout 4131 of measuring board 41 bottom slides relative slide rail 221, and then influences the accuracy of measuring in the angle of approach and departure measurement process.

Specifically, the number of the locking assemblies 42 is two, the two locking members are a first claw 423 and a second claw 424, the first claw 423 and the second claw 424 are respectively arranged on two sides of the extension portion 3212 along the transverse direction, the two ratchets are a first ratchet 421 and a second ratchet 422, the first ratchet 421 and the second ratchet 422 are respectively sleeved on the extension portion 3212 along the longitudinal direction at intervals, and the first claw 423 is used for extending into or separating from between any two adjacent gear teeth of the first ratchet 421 so as to correspondingly lock or unlock the first ratchet 421; the second pawl 424 is configured to extend into or out of between any two adjacent teeth of the second ratchet wheel 422 to correspondingly lock or unlock the second ratchet wheel 422. In this embodiment, as shown in fig. 3, the number of the locking assemblies 42 is two, the two locking assemblies 42 are a first claw 423 and a second claw 424, the claws of the first claw 423 and the second claw 424 are respectively provided with left and right sides of an extension portion 3212, the two ratchets are a first ratchet 421 and a second ratchet 422, the first ratchet 421 and the second ratchet 422 are respectively arranged at intervals along the front-rear direction, in this embodiment, the teeth of the first ratchet 421 are in a tooth peak shape in the second ratchet 422, the teeth are inclined surfaces with larger angles, and the inclined surfaces 415 of the teeth of the first ratchet 421 and the second ratchet 422 are reversely arranged, when the first claw 423 is clamped between any two adjacent teeth of the first ratchet 421, the first ratchet 421 is rotated clockwise as shown in fig. 3, the first claw 423 limits the rotation of the first ratchet 421, when the first ratchet 421 is rotated counterclockwise, the inclined surfaces 415 can pass the end of the first ratchet 421 due to the inclined surfaces 415 arranged to the inclined surfaces, so that the first ratchet 421 can rotate from the end of the first ratchet 421; the shape of the second claw 424 matches with that of the second ratchet wheel 422, when the second claw 424 is clamped between any two adjacent teeth of the second ratchet wheel 422, and when the second ratchet wheel 422 rotates anticlockwise as shown in fig. 3, the second claw 424 limits the rotation of the second ratchet wheel 422, when the second ratchet wheel 422 rotates clockwise, the second ratchet wheel 422 can slide over the end part of the second claw 424 due to the obliquely arranged teeth of the teeth, so that the second ratchet wheel 422 rotates, and by arranging two locking assemblies 42 and two ratchets, locking and unlocking of the rotating rod 321 can be facilitated, and the use flexibility of the measuring device 100 for the vehicle approach angle and the departure angle in the embodiment is increased.

More specifically, one end of the extension portion 3212 away from the rotating arm 22 is connected with a handle 3213, top portions of the first claw 423 and the second claw 424 are respectively connected with a first operating rod 425 and a second operating rod 426, the first claw 423 and the second claw 424 are both rotatably connected to the outer side of the rotating arm 22, the first claw 423 is used for rotating relative to the rotating arm 22 to extend into or separate from any two adjacent gear teeth of the first ratchet wheel 421 under the driving of the first operating rod 425, and the second claw 424 is used for rotating relative to the rotating arm 22 to extend into or separate from any two adjacent gear teeth of the second ratchet wheel 422 under the driving of the second operating rod 426. In this embodiment, as shown in fig. 3, the front end of the extension portion 3212 is connected with a handle 3213, the handle 3213 is perpendicular to the extension portion 3212, the tops of the first claw 423 and the second claw 424 are connected with a first operating rod 425, the top of the second claw 424 is connected with a second operating rod 426, the first operating rod 425 and the second operating rod 426 are respectively rotatably connected to the outer side of the rotating arm 22, and since the first ratchet wheel 421 and the first claw 423 limit the clockwise rotation of the rotating rod 321, the second ratchet wheel 422 and the second claw 424 limit the counterclockwise rotation of the rotating rod 321, when the rotating rod 321 is required to rotate clockwise, an operator can operate the first operating rod 423 to disengage the first claw 423 from the gear teeth of the first ratchet wheel 421, and when the rotating rod 321 is required to rotate counterclockwise, the operator can operate the second operating rod 426 to disengage the second claw 424 from the gear teeth of the second ratchet wheel 422, so that the unlocking or locking flexibility of the rotating rod 321 is further increased, and the structural arrangement is reasonable. In other embodiments, the rotation rod 321 may be driven by a driving motor, which is not limited in this embodiment.

In an embodiment, the first driving assembly includes a driving member 311, the rotating structure 2 further includes a second connecting rod 23 and two driving arms 24, the driving arms 24 extend in a transverse direction, the two driving arms 24 are disposed between the two rotating arms 22 at intervals in a longitudinal direction, a first end 241 of each driving arm 24 is hinged to the chassis 1, the second connecting rod 23 passes through a second end 242 of each driving arm 24 to be hinged to each driving arm 24, two ends of the second connecting rod 23 are respectively hinged to the two rotating arms 22, an output shaft of the driving member 311 is hinged to a position, close to the second end 242, of one of the driving arms 24, and the driving member 311 is obliquely disposed upwards in a direction away from the first side 11. In this embodiment, the first end 241 of the driving arm 24 is hinged to the chassis 1, the second connecting rod 23 is located between the two driving arms 24, the front and rear ends of the second connecting rod 23 respectively pass through the second ends 242 of the two driving arms 24 and continue to pass through the two rotating arms 22, the second connecting rod 23 is respectively rotatably connected with the two rotating arms 22 and the two rotating arms 22, the output shaft of the driving member 311 can be hinged to one of the driving arms 24 near the position of the second end 242 of the driving arm 24, the driving member 311 is located at the left side of the driving arm 24, the driving member 311 is obliquely arranged right and upward, and when the output shaft of the driving member 311 extends, the output shaft of the driving member 311 extends right and drives the second connecting rod 23 and the rotating arm 22 to rotate upward relative to the chassis 1 through the driving arm 24, so as to realize the upward rotation of the free end of the measuring plate 41 arranged above the rotating arm 22.

Further, the number of the driving members 311 is two, and the output shafts of the two driving members 311 are respectively hinged to the positions of the two driving arms 24 close to the second end 242, in this embodiment, by arranging two driving members 311 to respectively hinge the two driving arms 24, the dispersibility of the driving force can be increased, so that the burden of the driving arms 24 is reduced, the service life of the driving arms 24 is further prolonged, and the driving safety is improved.

Further, the driving member 311 is a hydraulic cylinder 312, and the apparatus 100 for measuring an approach angle and a departure angle of a vehicle further includes a hydraulic pump 313 and an oil pipe, and the hydraulic pump 313 communicates with the hydraulic cylinder 312 through the oil pipe. In this embodiment, the driving member 311 adopts the hydraulic cylinder 312, and because the hydraulic cylinder 312 has a simple design and a compact structure, and uses liquid as a medium, compared with other transmission modes, such as mechanical transmission, the wear and failure rate of the hydraulic system are lower, the service life of the hydraulic system is longer, the reliability of the hydraulic system is higher, and in other embodiments, the driving member 311 can also be a cylinder.

In one embodiment, an inclined surface 415 is formed at a position of the bottom of the measuring plate 41 corresponding to the abutting side 411, and the inclined surface 415 is disposed obliquely upward in a direction away from the first side 11. In this embodiment, the inclined surface 415 is formed by the abutment measurement of the measurement plate 41, so that the free side 412 of the measurement plate 41 can be conveniently lifted, and when the abutment side 411 is lowered, the abutment side 411 can be better contacted with the ground, thereby improving the measurement accuracy of the measurement device 100 for the approach angle and the departure angle of the vehicle in this embodiment.

Further, a plurality of travelling wheels 13 are arranged at intervals at the bottom of the chassis 1; and/or the first side 11 of the chassis 1 is provided with a push-pull frame 14. In this embodiment, set up walking wheel 13 at the diapire of chassis 1, can be convenient for the removal of chassis 1, increased the flexibility of use of vehicle approach angle and departure angle's measuring device 100, first side 11 of chassis 1 is provided with push-pull frame 14, can be convenient for operating personnel remove, and structural setting is reasonable.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (10)

1. A vehicle approach angle and departure angle measuring device, comprising:

A chassis including a first side and a second side disposed opposite in a lateral direction;

The rotating structure comprises a first connecting rod and two rotating arms, wherein the two rotating arms are arranged at intervals along the longitudinal direction and are respectively arranged at two sides of the chassis, the rotating arms extend along the transverse direction and are rotatably connected with the chassis, the first connecting rod is connected between the two rotating arms, and the top of each rotating arm is provided with a sliding rail extending along the transverse direction;

a drive structure comprising a first drive assembly and a second drive assembly;

The measuring structure comprises a measuring plate, the measuring plate comprises an abutting side and a free side which are transversely and oppositely arranged, the abutting side is arranged on the same side as the second side, the free side is arranged on the same side as the first side, the measuring plate is supported on two rotating arms, sliding grooves which are in sliding connection with the sliding rails are arranged at the bottom of the measuring plate corresponding to the positions of the sliding rails, the first driving assembly is used for driving the rotating arms to rotate relative to the chassis and driving the measuring plate to rotate relative to the chassis, so that the free side can lift relative to the abutting side, the inclination angle of the measuring plate can be adjusted, and the top of the measuring plate can abut against the bottom plate of a vehicle; the second driving assembly is used for driving the measuring plate to move along the sliding rail in a direction away from or close to the first side so as to enable the abutting side to abut against or separate from the tyre of the vehicle.

2. The device for measuring the approach angle and the departure angle of the vehicle according to claim 1, wherein the second driving assembly comprises a rotating rod extending along the longitudinal direction, two ends of the rotating rod are respectively rotatably penetrated through the two rotating arms, a rack extending along the transverse direction is arranged at the bottom of the measuring plate, and a gear meshed with the rack is sleeved on the rotating rod; and the rotating rod is rotated so as to drive the rack and the measuring plate to move towards the direction close to or far away from the first side through the gear.

3. The apparatus for measuring an approach angle and an exit angle of a vehicle according to claim 2, wherein the measuring structure further comprises a locking assembly including a ratchet and a locking member, one end of the rotating rod protrudes out of the corresponding rotating arm and forms an extension portion, the ratchet is sleeved on the extension portion, and the locking member is used for locking or unlocking the ratchet.

4. The device for measuring the approach angle and the departure angle of a vehicle according to claim 3, wherein the number of the locking assemblies is two, the two locking pieces are a first claw and a second claw respectively, the first claw and the second claw are respectively arranged at two sides of the extension part along the transverse direction, the two ratchets are a first ratchet and a second ratchet respectively, the first ratchet and the second ratchet are respectively sleeved on the extension part along the longitudinal direction at intervals, and the first claw is used for extending into or separating from between any two adjacent gear teeth of the first ratchet so as to correspondingly lock or unlock the first ratchet; the second claw is used for extending into or separating from any two adjacent gear teeth of the second ratchet wheel so as to correspondingly lock or unlock the second ratchet wheel.

5. The device for measuring the approach angle and the departure angle of the vehicle according to claim 4, wherein a handle is connected to one end of the extension portion away from the rotating arm, a first operating rod and a second operating rod are respectively connected to the top of the first claw and the top of the second claw, the first claw and the second claw are both rotatably connected to the outer side of the rotating arm, the first claw is used for being driven by the first operating rod to rotate relative to the rotating arm to extend into or separate from between any two adjacent gear teeth of the first ratchet, and the second claw is used for being driven by the second operating rod to rotate relative to the rotating arm to extend into or separate from between any two adjacent gear teeth of the second ratchet.

6. The apparatus according to any one of claims 1 to 5, wherein the first driving unit includes a driving member, the rotating structure further includes a second connecting rod and two transmission arms extending in a lateral direction, the two transmission arms being disposed between the two transmission arms at a longitudinal interval, a first end of the transmission arm being hinged to the chassis, the second connecting rod passing through a second end of the transmission arm and being hinged to the transmission arm, both ends of the second connecting rod being respectively hinged to the two transmission arms, an output shaft of the driving member being hinged to a position of one of the transmission arms near the second end, and the driving member being disposed obliquely upward in a direction away from the first side.

7. The apparatus for measuring the approach and departure angles of a vehicle according to claim 6, wherein the number of said driving members is two, and the output shafts of both said driving members are hinged to the respective positions of both said driving arms near said second ends.

8. The apparatus for measuring a vehicle approach angle and departure angle according to claim 6, wherein the driving member is a hydraulic cylinder, and the apparatus for measuring a vehicle approach angle and departure angle further comprises a hydraulic pump and an oil pipe, the hydraulic pump being in communication with the hydraulic cylinder through the oil pipe.

9. The apparatus according to any one of claims 1 to 5, wherein a bottom portion of the measuring plate is formed with an inclined surface at a position corresponding to the abutting side, and the inclined surface is provided obliquely upward in a direction away from the first side.

10. The vehicle approach and departure angle measuring device according to any one of claims 1-5, wherein a plurality of road wheels are provided at intervals at the bottom of the chassis; and/or the first side of the chassis is provided with a push-pull frame.