CN216349490U

CN216349490U - Device for measuring visible area of automobile windshield

Info

Publication number: CN216349490U
Application number: CN202123109220.2U
Authority: CN
Inventors: 张邦; 龙风; 陈发达; 宫晨
Original assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Geely Automobile Research Institute Ningbo Co Ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-19
Anticipated expiration: 2031-12-08

Abstract

The utility model provides a device for measuring a visible area of an automobile windshield, and relates to the technical field of automobiles. Wherein, the survey device in the visual region of car windshield includes: the device comprises a reference body, a mounting seat and a plurality of lasers; the reference body is used for determining a riding reference point and comprises a back board and a support rod; the backrest plate is fixedly connected with the support rod and is also used for being fixedly connected with a backrest of the automobile seat; the mounting seat is mounted on the support rod and can slide relative to the support rod along the axial direction of the support rod; the plurality of lasers are fixedly mounted on the first side wall of the mounting seat, and the positions of the plurality of lasers on the first side wall are arranged in a manner that light rays emitted by the plurality of lasers define a visible area for detecting a windshield of the automobile, so that the visible area can be directly defined on the windshield and the positions of the visible area can be determined, the testing efficiency is improved, and the testing accuracy is improved.

Description

Device for measuring visible area of automobile windshield

Technical Field

The utility model relates to a device for measuring a visible area of an automobile windshield, and belongs to the technical field of automobiles.

Background

In order to ensure that an automobile normally runs in severe weather, a defrosting and defogging system is arranged on the automobile to ensure that a driver has a wide and clear view, so that the performance of the defrosting and defogging system is very important, for this reason, the defrosting and defogging of a visible region of an automobile air window needs to be tested according to GB11555-2009, namely ' a performance and test method of an automobile air window glass defrosting and defogging system ', and the test is performed on the premise that the visible region of the automobile air window, namely A, A ' and B regions in GB11555-2009, is determined, wherein the automobile air window refers to a front windshield.

In the related art, the three-dimensional H-point device and the three-coordinate portable measuring arm are determined according to a visual area determination method in GB 11555-2009; the three-dimensional H point device is used for measuring an R point, namely a 'riding reference point', and refers to a design H point specified by a seat manufacturer, wherein the three-dimensional H point device comprises a bearing plate, a backboard, a rotating shaft and an indicating rod, the bearing plate is rotatably connected with the backboard through the rotating shaft, and one end of the indicating rod is rotatably connected with the rotating shaft. During measurement, a measurer controls the probe of the three-coordinate portable measuring arm to move according to a visual area determining method in GB11555-2009, so that the probe is in contact with different positions on an automobile windshield, contact points are marked on the automobile windshield, and a plurality of contact points are connected to obtain A, A' and B areas.

However, the position of the probe needs to be changed manually for many times in the process of determining the visible area, so that the testing efficiency is not high and the deviation is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model provides a device for measuring a visible area of an automobile windshield, which solves the problems that in the prior art, the position of a probe needs to be manually changed for many times in the process of determining the visible area, the testing efficiency is low, and deviation is easy to occur.

The utility model provides a device for measuring a visible area of an automobile windshield, which comprises a reference body, a mounting seat and a plurality of lasers, wherein the reference body is provided with a plurality of mounting holes;

the datum body is used for determining a riding datum point and comprises a back board and a support rod;

the back board is fixedly connected with the support rod and is also used for being fixedly connected with a backrest of the automobile seat;

the mounting seat is mounted on the supporting rod and can slide relative to the supporting rod along the axial direction of the supporting rod;

a plurality of the lasers are fixedly mounted on a first side wall of the mounting seat, and the positions of the lasers on the first side wall are arranged so that light rays emitted by the lasers define a visible area for detecting automobile windshield.

Optionally, the laser is a line laser.

Optionally, the first side wall of the mounting seat is provided with a mounting groove;

the laser is tightly installed in the installation groove.

Optionally, the device further comprises a mounting bracket and a fastening bolt;

the mounting bracket comprises a first annular part and two lug parts;

the first annular part is sleeved on the laser and is fixedly connected with the laser;

the first ends of the two lug parts are respectively fastened and connected with the first annular part, and fastening holes for the fastening bolts to penetrate through are formed in the lug parts;

and the inner wall of the mounting groove is provided with a threaded hole for inserting the fastening bolt.

Optionally, a level gauge is further included;

the level gauge is fixedly installed on the top surface of the installation seat.

Optionally, the reference body further comprises a bearing plate, a connecting plate, a bearing shaft and two supporting plates;

the supporting plate is used for being placed on a cushion of the automobile seat;

the first ends of the connecting plate and the two supporting plates are sleeved on the bearing shaft and are rotatably connected with the bearing shaft, the first end of the connecting plate is located between the two supporting plates, the second ends of the supporting plates are fixedly connected with the bearing plate, and the second end of the connecting plate is fixedly connected with the backrest plate.

Optionally, the device further comprises a first slide rail, a first slide block and a plurality of connecting pieces;

the first sliding rail is fixedly connected with the backboard through the plurality of connecting pieces;

the first sliding rail is connected with the first sliding block in a sliding manner;

the first sliding block is fixedly connected with the supporting rod, and the sliding direction of the first sliding block is perpendicular to the vertical direction.

Optionally, the connector comprises a first connector part, a second connector part, a ball part and a fastening nut part; the first end of the first connecting part is fixedly connected with the backrest plate, and the second end of the first connecting part is fixedly connected with the ball head part; the first end of the second connecting part is fixedly connected with the first slide rail, and the second end of the second connecting part is provided with a ball groove for the ball head part to be inserted into; the fastening nut part is sleeved on the second end of the second connecting part and used for locking the ball head part and the second end of the second connecting part; and/or the presence of a gas in the gas,

the first sliding block comprises a first annular part and a first sliding part; the second annular part is sleeved on the supporting rod and is fixedly connected with the supporting rod; the first end of the first sliding part is fixedly connected with the second annular part, and the second end of the first sliding part is slidably arranged in the first sliding groove.

Optionally, the device further comprises a second sliding rail and a bearing plate which are connected in a sliding manner;

the bearing plate is provided with a first channel for the support rod to pass through, the mounting seat is fixedly mounted on the top surface of the bearing plate, and the sliding direction of the bearing plate is perpendicular to the vertical direction;

the second sliding rail is sleeved on the supporting rod and is connected with the supporting rod in a sliding mode.

Optionally, the device further comprises a locking piece;

the locking piece comprises a main body part and at least two rod-shaped parts;

the main body part is sleeved on the support rod and is in threaded connection with the support rod;

the at least two rod-shaped parts are arranged around the supporting rod, the first ends of the rod-shaped parts are fixedly connected with the top end of the main body part, and the second ends of the rod-shaped parts are abutted to the bottom surface of the second sliding rail.

The utility model provides a device for measuring a visible area of an automobile windshield, which comprises a reference body, a mounting seat and a plurality of lasers; the reference body is used for determining a riding reference point and comprises a back board and a support rod; the backrest plate is fixedly connected with the support rod and is also used for being fixedly connected with a backrest of the automobile seat; the mounting seat is mounted on the support rod and can slide relative to the support rod along the axial direction of the support rod; a plurality of lasers are fixedly mounted on the first side wall of the mounting seat, and the positions of the plurality of lasers on the first side wall are arranged so that light emitted by the plurality of lasers defines a visible area for detecting automobile windscreens. The utility model can determine where the mounting seat should be located on the supporting rod through the riding reference point, and then a visible area defined by light rays emitted by a plurality of lasers is projected on the automobile windshield, so that a determination person can directly rub a trajectory diagram of the visible area, and the test efficiency can be improved; the visible area is formed by the light of the laser, so that no measuring personnel participates, the precision of the determined visible area can be improved, and the accuracy of the test is improved.

Drawings

The above and other objects, features and advantages of the embodiments of the present invention will become more readily understood by the following detailed description with reference to the accompanying drawings. Embodiments of the utility model will now be described, by way of example and not limitation, in the accompanying drawings, in which:

FIG. 1 is a schematic projection view of an apparatus for determining a viewing area of a window of an automobile according to an embodiment of the present invention;

FIG. 2 is a perspective view of an apparatus for measuring a viewing area of a window of an automobile according to an embodiment of the present invention;

FIG. 3 is a left side view of an apparatus for determining a viewing area of a window of an automobile according to an embodiment of the present invention;

FIG. 4 is a plan view of a device for measuring a visible area of a window of an automobile according to an embodiment of the present invention;

FIG. 5 is a schematic view of a viewing area according to an embodiment of the present invention;

FIG. 6 is a schematic view of a mounting bracket of an embodiment of the present invention;

fig. 7 is an exploded view of a connector according to an embodiment of the present invention.

Reference numerals:

10-a mounting seat; 11-mounting grooves;

20-a laser;

30-a reference body; 31-a back board; 32-a support bar; 33-a support plate; 34-a connecting plate; 35-a support plate; 36-a bearing shaft;

41-mounting a bracket; 411-first annular portion; 412-ear; 42-a level gauge;

51-a first slide rail; 511-a first runner; 52-a first slide; 521-a second annular portion; 522-a first sliding part; 53-a connector; 531 — first connection; 532-a second connecting portion; 533-ball head; 534-a fastening nut portion;

61-a second slide rail; 62-a carrier plate; 63-a lock; 631-a body portion; 632-rod-shaped part.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Through careful analysis, the inventors of the present disclosure have considered that the main reason why the above-mentioned problems occur is that a plurality of contact points need to be marked on the front windshield, and the contact points at different positions need to be connected together to form a line, so that a plurality of boundary lines are obtained, and the plurality of boundary lines define a visible area, so that a process of repeatedly marking the contact points is not only cumbersome, but also prone to error, and the position accuracy of the contact points is poor, so that the deviation of the visible area is large.

In view of the above problems, the inventor of the present disclosure sets a projection mechanism on a support rod of a reference body, and the projection mechanism can directly project a visible area defined by light on a front windshield, so as to once indicate the position of the visible area on the front windshield, thereby improving the test efficiency and preventing the deviation from easily occurring. The projection mechanism comprises a mounting seat and a plurality of lasers, and the lasers are fixedly mounted on a first side wall of the mounting seat; the mounting seat is installed on the supporting rod and can slide relative to the supporting rod along the axial direction of the supporting rod so as to ensure that the distance between the riding reference points determined by the laser and the reference body meets the test requirement.

The following describes in detail a device for measuring a visible area of an automobile windshield according to the present invention with reference to specific examples.

FIG. 1 is a schematic projection view of a device for measuring a visible area of an automobile windshield according to an embodiment of the present invention; FIG. 2 is a perspective view of a device for measuring a visible area of an automobile windshield according to the present embodiment; FIG. 3 is a left side view of the device for measuring a visible area of a window of an automobile according to the present embodiment; fig. 4 is a plan view of the measuring device for the visible region of the automobile windshield according to the present embodiment.

As shown in fig. 1 to 4, the present embodiment provides a device for measuring a visible area of an automobile windshield, which includes a reference body 30, a mounting base 10, and a plurality of lasers 20.

The reference body 30 is used to determine a seating reference point, and the reference body 30 includes a backboard 31 and a support bar 32. The backrest panel 31 is fastened to the support bar 32, and the backrest panel 31 is also used for fastening to the backrest of the vehicle seat.

The mount 10 is mounted on the support rod 32 and is slidable relative to the support rod 32 in the axial direction of the support rod 32.

A plurality of lasers 20 are mounted securely on a first side wall of the mount 10 and the position of the plurality of lasers 20 on the first side wall is arranged such that light emitted by the plurality of lasers 20 defines a viewable area for detecting a vehicle windshield.

The principle of the reference body 30 is the same as that of the three-dimensional H-point device, and both are used for simulating a driver, so as to obtain the R-point in GB 11555-2009.

The back plate 31 may be fastened to the back of the car seat by a safety belt, thereby fixing the reference body 30 to the car seat.

According to the determination of the visible area in GB11555-2009, the axis of the support stick 32 should pass through point R.

Along the axial direction of the support rod 32, the mount 10 is slidable relative to the support rod 32 in order to adjust the spacing between the R point and the laser 20 so as to satisfy the specified range in the test standard.

In order to accurately know the current spacing value between the R point and the laser 20, in an alternative implementation, an indication scale may be provided on the support rod 32; in another alternative implementation manner, a distance sensor is disposed on the bottom surface of the mounting base 10, the distance between the R point and the laser 20 is detected by the distance sensor, and a display screen is disposed on the mounting base 10 for displaying the distance between the R point and the laser 20 in real time.

As shown in fig. 1, when the lasers 20 are in use, the first sidewall is disposed opposite the front windshield so that a visible area defined by light emitted from the plurality of lasers 20 can be projected on the front windshield to determine a position of the visible area on the front windshield.

Fig. 5 is a schematic view of the visible region of the present embodiment.

As shown in fig. 5, the arrangement relationship between the plurality of lasers 20 is arranged according to the determination method of the visible region in GB11555-2009, for example, since the a region and the a' region are symmetrical with respect to the central plane in the longitudinal direction of the automobile, the visible region defined by the light emitted from the plurality of lasers 20 includes the a region and the B region, and the a region is located in the B region. The area B is symmetrical about the longitudinal center plane of the automobile, and can be defined by only two first transverse boundary lines and one first longitudinal boundary line, so that the number of the lasers 20 is reduced. Zone a is defined by two second transverse boundary lines and two second longitudinal boundary lines.

The boundary line between the area a and the area B may determine the number of the lasers 20 according to the type of the light emitted by the lasers 20, for example, the lasers 20 may be a line laser 20, and each boundary line between the area a and the area B only needs one line laser 20, and the line laser 20 may reduce the installation requirement of the lasers 20 constituting the transverse boundary line, may move left and right in the transverse direction, and avoids colliding with the lasers 20 constituting the longitudinal boundary line.

It should be noted that the automobile windshield further comprises a power supply and a switch, the power supply is in power supply connection with the plurality of lasers 20 through the switch, and when the automobile windshield is used, the visible area can be controlled to form or disappear on the automobile windshield through controlling the switch.

As shown in fig. 1 and 2, in an alternative implementation, a first side wall of the mounting seat 10 is provided with a mounting groove 11; the laser 20 is securely mounted in the mounting groove 11 so that the laser 20 can be protected from damage.

The outer shape of the mount 10 may be a cylindrical structure, for example, a square or rectangular parallelepiped of the mount 10.

The longitudinal section of the mounting groove 11 may be polygonal, for example, the longitudinal section of the mounting groove 11 is rectangular.

The laser 20 can be fastened to the inner wall of the mounting groove 11 by screwing or clipping, for example, further includes a mounting bracket 41 and a fastening bolt. Wherein, the inner wall of the mounting groove 11 is provided with a screw hole into which a fastening bolt is inserted.

Fig. 6 is a schematic view of the mounting bracket of the present embodiment.

As shown in fig. 6, the mounting bracket 41 includes a first ring portion 411 and two lug portions 412. Wherein, the first annular part 411 is sleeved on the laser 20 and is tightly connected with the laser 20; first ends of the two lug portions 412 are respectively fastened to the first annular portion 411, and fastening holes through which fastening bolts pass are formed in the lug portions 412.

The first annular portion 411 and the laser 20 may be engaged with or abutted against each other to fix the laser 20 to the first annular portion 411.

Schematically, the first annular portion 411 is annular.

For the laser 20 with an angle requirement, the structure of the lug part 412 can be changed, for example, the lug part 412 includes a first flat plate and a second flat plate, a first end of the first flat plate is tightly connected with a first end of the second flat plate, a second end of the first flat plate is tightly connected with the first ring part 411, and the fastening hole is arranged on the second flat plate. Wherein, the angle requirements of different lasers 20 can be satisfied by controlling the included angle between the first plate and the second plate.

As shown in fig. 3, in an optional implementation, a level 42 is also included. Wherein the level 42 is securely mounted on the top surface of the mounting block 10 to ensure that the lateral boundary line defined by the laser 20 is parallel to the horizontal plane, ensuring accuracy of the viewing area.

As shown in fig. 1-4, in an alternative implementation, the reference body 30 further includes a support plate 33, a connecting plate 34, a holding shaft 36, and two support plates 35. Wherein the support plate 33 is intended to be placed on the seat cushion of a car seat.

The first end of connecting plate 34 and the first end of two backup pads 35 all overlap and establish on bearing axle 36 and with bearing axle 36 rotation connection, the first end of connecting plate 34 is located between two backup pads 35, the second end and the supporting board 33 fastening connection of backup pad 35, the second end and the back board 31 fastening connection of connecting plate 34 to can determine and take the benchmark.

The seating reference point is a rotational connection point of the back plate 31 and the support plate 33, i.e., the seating reference point is located in the axial direction of the support shaft 36.

The backboard 31 is used to simulate a human torso and the support board 33 is used to simulate a human leg.

The supporting plate 35 has a polygonal shape, for example, the supporting plate 35 includes an arc side and at least one straight side, and two ends of the arc side are respectively fastened to two ends of the straight side.

The support plate 35 may be fixedly coupled to the support plate 33 by welding or screwing.

The support plate 35 and the prop shaft 36 may be fixedly or rotatably connected.

The connection plate 34 is polygonal in shape.

Opposite sides of the first end of the connecting plate 34 are clearance-fitted with the two support plates 35 to avoid affecting the rotation of the connecting plate 34.

The connecting plate 34 is rotatably connected with the supporting shaft 36, so that the angle between the backrest plate 31 and the supporting plate 33 can be adjusted, and the test requirements can be met.

In the use, bearing axle 36 does not remove along self axis direction, for example, bearing axle 36 includes connecting axle and two nuts, and two nuts overlap respectively and establish on the both ends of connecting axle and with connecting axle threaded connection to two nuts are contradicted with two backup pads 35 respectively, in order to restrict bearing axle 36 and remove.

As shown in fig. 2 to 4, in an optional implementation, the first slide rail 51, the first sliding block 52 and the plurality of connecting members 53 are further included.

The first slide rail 51 is fixedly connected with the backrest plate 31 through a plurality of connecting pieces 53; the first slide rail 51 is slidably connected to the first slider 52.

The first sliding block 52 is fixedly connected with the supporting rod 32, and the sliding direction of the first sliding block 52 is perpendicular to the vertical direction, so that the supporting rod 32 can be transversely moved along the direction perpendicular to the longitudinal central plane of the automobile, the position of the laser 20 can be transversely moved, the position of the visual area on the front windshield can be adjusted, and the testing precision is improved.

Fig. 7 is an exploded view of the connector of the present embodiment.

As shown in fig. 7, optionally, the connector 53 includes a first connection portion 531, a second connection portion 532, a ball portion 533 and a fastening nut portion 534.

A first end of the first connecting portion 531 is fastened to the backrest panel 31, and a second end of the first connecting portion 531 is fastened to the ball portion 533.

A first end of the second connecting portion 532 is fastened to the first slide rail 51, and a second end of the second connecting portion 532 is provided with a ball slot for the ball head portion 533 to be inserted into.

The fastening nut portion 534 is disposed on the second end of the second connecting portion 532 and is used for locking the ball portion 533 and the second end of the second connecting portion 532, so that the ball portion 533 can be prevented from rotating in the ball groove after the position of the first slide rail 51 is adjusted in any direction.

The ball portion 533 is inserted into the ball groove and rotated in the ball groove, so that the position of the first connecting portion 531 with respect to the second connecting portion 532 is changed, thereby correcting the position deviation of the back board 31 and ensuring the position accuracy of the support rod 32.

The first end of the first connection portion 531 may be fixedly connected to the back plate 31 by a screw or welding.

The first end of the second connecting portion 532 can be fixedly connected to the first slide rail 51 by screwing or welding.

The first connection portion 531 may be integrally formed with the ball portion 533 to improve the connection strength between the first connection portion 531 and the ball portion 533.

The second end of the second connection portion 532 may be a tubular structure and a plurality of first notches are circumferentially provided at intervals, and the first notches are provided on the tube wall of the tubular structure and communicate with the inside of the tubular structure, so that under the action of the fastening nut portion 534, the second end of the second connection portion 532 is in close contact with the ball portion 533, thereby limiting the ball portion 533 from rotating in the ball groove.

As shown in fig. 2, optionally, at least one first sliding slot 511 is further included. Wherein, the central line of the first sliding slot 511 is arranged perpendicular to the vertical direction.

As shown in fig. 3, the first slider 52 includes a second annular portion 521 and a first sliding portion 522.

The second annular portion 521 is sleeved on the support rod 32 and is tightly connected with the support rod 32.

The first end of the first sliding part 522 is tightly connected to the second annular part 521, and the second end of the first sliding part 522 is slidably disposed in the first sliding slot 511, so that the support rod 32 can move laterally.

When the number of the first sliding grooves 511 is at least two, the at least two first sliding grooves 511 are disposed on the first slide rail 51 at intervals in the vertical direction.

The structure of the first sliding slot 511 is adapted to the structure of the first sliding portion 522.

The first slide rail 51 may be a polygonal plate, for example, the first slide rail 51 is a rectangular plate.

The second annular portion 521 and the first sliding portion 522 may be integrally formed to improve the connection strength between the second annular portion 521 and the first sliding portion 522.

The second annular portion 521 may be a circular ring.

Illustratively, the first sliding part 522 includes a connection column and a sliding plate. Wherein, the both ends of spliced pole respectively with sliding plate and second annular portion 521 fastening connection, the spliced pole is injectd the step face with first spout 511 joint with the sliding plate to avoid first sliding part 522 to drop from in the first spout 511.

As shown in fig. 2 and 3, in an alternative implementation, a second slide rail 61 and a bearing plate 62 are further included.

The bearing plate 62 is provided with a first channel for the support rod 32 to pass through, the mounting seat 10 is fixedly mounted on the top surface of the bearing plate 62, and the sliding direction of the bearing plate 62 is perpendicular to the vertical direction;

the second slide rail 61 is sleeved on the support rod 32 and slidably connected with the support rod 32, so that the mounting base 10 can longitudinally move along a direction parallel to the longitudinal central plane of the automobile to adjust the distance between the laser 20 and the front windshield.

The second slide rail 61 is sleeved on the support rod 32 and slidably connected to the support rod 32, that is, the second slide rail 61 can slide along the axial direction of the support rod 32 relative to the support rod 32, so as to adjust the distance between the laser device 20 and the sitting reference point.

The first channel is a second notch penetrating the bearing plate 62 to prevent the bearing plate 62 from moving longitudinally.

The sliding direction of the carrier plate 62 is perpendicular to the sliding direction of the first slider 52.

As shown in fig. 2, the carrier plate 62 illustratively includes a flat plate portion and two second sliding portions. The two second sliding portions are located on the bottom surface of the flat plate portion and are fastened to the flat plate portion, and the support bar 32 is located between the two second sliding portions. The second slide rail 61 is provided with a second slide groove for the second slide portion to slide.

The second sliding portion and the flat plate portion may be integrally configured.

The structure of second sliding part can be similar with the structure of first sliding part 522, and the second sliding part also includes spliced pole and sliding plate promptly, and the spliced pole is injectd the step face with the second spout joint with the sliding plate.

The second slide rail 61 is a flat plate structure, and a through hole for the support rod 32 to pass through is formed in the flat plate structure.

In order to avoid the rotation of the second slide rail 61 and the support rod 32, a limit groove extending along the axial direction of the support rod 32 is provided on the support rod 32, and a limit block inserted in the limit groove is provided on the second slide rail 61, for example, the limit block is a rectangular plate and is located in a through hole of the second slide rail 61.

As shown in fig. 3, a locking member 63 is optionally further included. The locking member 63 includes a main body 631 and at least two rod-shaped portions 632.

The main body 631 is sleeved on the support bar 32 and is in threaded connection with the support bar 32; at least two rod-shaped portions 632 are disposed around the support rod 32, a first end of each rod-shaped portion 632 is tightly connected to a top end of the main body 631, and a second end of each rod-shaped portion 632 abuts against a bottom surface of the second slide rail 61, so as to limit the second slide rail 61 from sliding downward along the support rod 32, and ensure that the distance between the mounting seat 10 and the sitting reference point is a predetermined distance.

The main body 631 may be nut-shaped and threadedly engaged with the support rod 32 to prevent the second slide rail 61 from further sliding downward.

The rod portion 632 may be a round rod or a prismatic rod.

The rod portion 632 and the main body portion 631 may be integrally formed to improve the connection strength between the rod portion 632 and the main body portion 631.

In order to secure a predetermined distance between the mounting seat 10 and the seating reference point, the rod portion 632 is provided to accurately read a scale value of the alignment of the bottom surface of the main body portion 631.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The device for measuring the visible area of the automobile windshield is characterized by comprising a reference body, a mounting seat and a plurality of lasers;

2. The apparatus for determining the viewing area of an automotive window as claimed in claim 1, wherein said laser is a line laser.

3. The apparatus for determining the viewing area of an automobile windshield according to claim 1, wherein the first side wall of the installation seat is provided with an installation groove; the laser is tightly installed in the installation groove.

4. The apparatus for determining the viewing area of an automobile windshield according to claim 3, further comprising a mounting bracket and a fastening bolt;

the mounting bracket comprises a first annular part and two lug parts;

5. The apparatus for determining the viewing area of an automotive window as defined in claim 1, further comprising a level gauge; the level gauge is fixedly installed on the top surface of the installation seat.

6. The apparatus for measuring the viewing area of an automobile windshield according to any one of claims 1-5, wherein the reference body further comprises a bearing plate, a connecting plate, a bearing shaft and two support plates;

7. The apparatus for determining the viewing area of an automobile windshield according to any one of claims 1 to 5, further comprising a first slide rail, a first slide block and a plurality of connecting members;

the first sliding rail is fixedly connected with the backboard through the plurality of connecting pieces; the first sliding rail is connected with the first sliding block in a sliding manner;

8. The apparatus for determining the viewing area of an automobile windshield according to claim 7, wherein the connecting member comprises a first connecting portion, a second connecting portion, a ball portion and a fastening nut portion; the first end of the first connecting part is fixedly connected with the backrest plate, and the second end of the first connecting part is fixedly connected with the ball head part; the first end of the second connecting part is fixedly connected with the first slide rail, and the second end of the second connecting part is provided with a ball groove for the ball head part to be inserted into; the fastening nut part is sleeved on the second end of the second connecting part and used for locking the ball head part and the second end of the second connecting part; and/or the presence of a gas in the gas,

9. The apparatus for measuring the visible area of the windshield of the automobile according to any one of claims 1 to 5, further comprising a second slide rail and a bearing plate which are slidably connected;

10. The apparatus for determining the viewing area of an automotive window as defined in claim 9, further comprising a locking member;

the locking piece comprises a main body part and at least two rod-shaped parts;

the main body part is sleeved on the support rod and is in threaded connection with the support rod; the at least two rod-shaped parts are arranged around the supporting rod, the first ends of the rod-shaped parts are fixedly connected with the top end of the main body part, and the second ends of the rod-shaped parts are abutted to the bottom surface of the second sliding rail.