WO2021258248A1

WO2021258248A1 - Laser leveling instrument

Info

Publication number: WO2021258248A1
Application number: PCT/CN2020/097438
Authority: WO
Inventors: 陈世泽; 陈俊邦; 王苑如; 黄世棋
Original assignee: 罗伯特·博世有限公司; 陈世泽; 陈俊邦; 王苑如; 黄世棋
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-12-30
Also published as: CN115698629A

Abstract

A laser leveling instrument (100), comprising: a housing (10); a laser generator (20) located in the housing (10) and capable of generating a downward plumb beam (S1) and/or a laser plane comprising the downward plumb beam (S1) emitted to the outside of the housing (10); and a base (30) pivotally assembled on the housing (10) and having an attachment part (301) for external installation. The housing (10) has a lower opening (101a) for the downward plumb beam (S1) and/or the laser plane to emit out, and a yielding space (40) is formed below the lower opening (101a) and above a bottom surface (102). The base (30) may rotate between a first position and a second position relative to the housing (10). When the base (30) is located in the first position, the attachment part (301) is placed in the yielding space (40). The yielding space (40) below the lower opening (101a) is used as a storage region of the attachment part (301). The design spaces of existing laser leveling instruments are used, the instrument has a compact structure, is convenient for transportation, and is also not easily damaged.

Description

Laser level

Technical field

This application relates to a laser level instrument, and in particular to a laser level instrument with a rotating base.

Background technique

A laser level is an optical level and plumb calibration device, which generally includes a housing, a plumb body suspended in the housing, and a laser generating part mounted on the plumb body. Since the operator needs to combine different height benchmarks for leveling during the operation, in many cases, height adjustment components such as a tripod are used. However, users often need to prepare suitable height adjustment parts by themselves, which is inconvenient; laser level meters with a base (height adjustment function) are also available on the market, but the products are large in size and not easy to store and carry.

Therefore, it is necessary to improve to optimize the technical problems existing in the prior art.

Summary of the invention

The main problem to be solved by this application is that the laser level with a base is not convenient to store and carry.

In order to solve the above technical problems, the present application provides a laser level meter, including: a housing; a laser generator located in the housing and capable of generating a downward plumb beam emitted to the outside of the housing and/or containing the lower The laser surface of the vertical beam; a base, which is pivotally assembled to the housing and has an attachment portion for external installation; the housing has a vertical beam and/or laser surface for emitting The lower opening forms a space below the lower opening and above the bottom surface. The base can rotate between a first position and a second position relative to the housing. When the base is in the first position, The attachment part is placed in the relief space.

The present application uses the space under the lower opening as the storage area of the attachment portion, which makes full use of the design space of the existing laser level instrument, and has a compact structure, which is convenient for transportation and carrying.

Description of the drawings

Refer to the detailed description of the following specific implementation manners in conjunction with the accompanying drawings to better understand the present application. in:

Fig. 1 shows a schematic diagram of the three-dimensional structure of the laser level instrument of the present application at the second position;

Figure 2 shows a schematic front view of the structure of the laser level in Figure 1, in which the hanging window is partially cut away;

Fig. 3 shows a schematic diagram of the three-dimensional structure of the laser level instrument of the present application at the first position;

Fig. 4 shows a schematic front view of the structure of the laser level in Fig. 3;

FIG. 5 shows a schematic diagram of the top structure of the laser level in FIG. 3;

Fig. 6 shows a schematic diagram of the bottom structure of the laser level in Fig. 3;

FIG. 7 shows a schematic diagram of the pivoting structure inside the housing and the base of the laser level meter of the present application;

FIG. 8 shows a schematic diagram of the three-dimensional structure of the vibration-damping isolator of the present application;

FIG. 9 shows a schematic top view of the structure of the vibration-damping isolator in FIG. 8.

detailed description

The specific implementation of the laser level 100 of the present application will be described in detail below with reference to FIGS. 1 to 9.

The laser level meter 100 includes a housing 10; a laser generator 20 is located in the housing 10 (specifically arranged on a pendulum body in the housing 10) and can generate a downward beam that is emitted to the outside of the housing 10. The vertical beam S1 and/or the laser surface containing the downward vertical beam S1; the base 30 is pivotally assembled to the housing 10 and has an attachment portion 301 for external installation; the housing 10 has The lower opening 101a for the downward vertical beam and/or the laser surface to emit, and below the lower opening 101a and above the bottom surface 102 form a relief space 40, the base 30 can be positioned at the first position relative to the housing 10 Rotate between a first position and a second position. When the base 30 is in the first position, the attachment portion 301 is placed in the relief space 40. The base 30 also has at least one second position. The base 30 pivots relative to the housing 10 and can be switched between a first position and a number of second positions. The basic function of the relief space 40 is to avoid the emission path of the downward vertical beam or laser surface. The present application uses the relief space 40 below the lower opening 101a as the storage area of the attachment portion 301, which makes full use of the existing There is a laser level design space, compact structure, easy to transport and not easy to damage. The attachment portion 301 in this embodiment is a magnetic attachment portion, so it can be flexibly attached to metal surfaces of different heights. Of course, in some other embodiments, the attachment portion 301 may also be a fixing clip, a fixing hole, or a fixing hole. Other possible forms will not constitute a special limit to the scope of protection of this application. Furthermore, in addition to generating the downward vertical beam S1 and/or the laser surface containing the downward vertical beam S1, this application can also generate other laser reference planes, such as the horizontal beam S2 and the upper vertical beam S3 that are emitted to the outside. Correspondingly, the hanging window 101 has a side opening 101b and an upper opening 101c for the horizontal light beam to emit.

Please continue to refer to the drawings, a hanging window 101 protrudes from one side of the housing 10, the lower opening 101a is provided on the hanging window 101, and the projection coverage of the hanging window 101 in the downward vertical direction is in the first position的Attachment 301. Specifically to this embodiment, it can be seen from the top view when the base 30 is in the first position that the base 30 and its attachment portion 301 are completely covered by the housing 10 and its hanging window 101, which can be intuitively reflected Compact design and storage effect. The attachment portion 301 is fixed to the base 30 and has an attachment surface 3011. When the base 30 is placed in the first position, the hanging window 101 has an outer side wall that is generally flush with the attachment surface 3011 1011. In this design, the attachment portion 301 is used to fix the boxing or storage of the laser level meter, for example, a row of metal strips (not shown) for the attachment portion 301 to be fixed is installed on the lower side of the packaging box. In addition, the base 30 is non-detachably assembled to the housing 10, so as to avoid loss and frequent assembly and disassembly damage, and also provide for the subsequent setting of a locking structure and a vibration-damping design on the mating surface of the housing 10 and the base 30 It's possible. It should be pointed out that the non-removable here means that it does not need to be removed during normal use, and does not mean that it is absolutely non-removable under repair, maintenance or other special circumstances.

The laser level 100 has a locking structure for locking the base 30 at the first position. The base 30 is attached to the bottom surface 102 of the housing 10, and the locking structure includes an elastic thimble 302 provided on the base 30 and an elastic thimble 302 provided on the bottom surface 102 for accommodating the elastic thimble 302 Pit 1021. In addition to setting the receiving pit 1021 at the corresponding first position, the base 30 can also be locked in at least one preset second position by the locking structure in the pivoting interval to lock and maintain some specific positions. When the base 30 is located at the second position, the attachment portion 301 leaves the vacant space 40, thereby opening the emission path of the downward plumb beam S1 and/or the laser surface containing the downward plumb beam S1 .

The housing 10 has a pivot axis P for the base 30 to pivot, the laser level 100 also has a vibration isolator 50, and the vibration isolator 50 includes an inner sleeve sleeved on the pivot axis P 501 and an outer sleeve 503 embedded in the base 30, the inner sleeve 501 and the outer sleeve 503 are only connected by a plurality of ribs 505 distributed in the circumferential direction. This design in which only a number of ribs 505 are connected and the rest is hollowed out can block or reduce the transmission of vibration, and can slow down the transmission of the base 30 to the housing 10 when the base 30 is impacted. In this embodiment, the inner sleeve 501, the outer sleeve 503, and a number of ribs 505 are formed by integral injection molding, and the inner sleeve 501 and the outer sleeve 503 can also be embedded with a vibration-damping material (such as TPE rubber ring ), in order to reduce the burden of the several ribs 505, and at the same time assist in achieving a better vibration damping effect. The pivot axis P is arranged on the housing 10, the periphery of the vibration isolation member 50 is fixed to the base 30, and the middle portion of the vibration isolation member 50 is fixed to the pivot axis P. The vibration-damping isolator 50 is elastically fixed to the pivot shaft P by a spring washer 509, and the metal elastic piece 509 combined with the vibration-damping isolator 50 can achieve better vibration reduction. When the low base 30 receives an external force The impact on the built-in precision laser generator 20 also ensures that the relative position between the housing 10 and the base 30 will not shift.

The above specific implementation manners are only used to illustrate the application, but not to limit the application. For example, it was mentioned that the laser rangefinder of this application can generate the laser surface of the downward plumb beam. It does not mean that the laser level meter can generate an independent downward plumb beam. It is only required that the laser surface is projected downward. That is, it is only required that the fan of the laser surface cover the downward plumb beam. Furthermore, the laser level meter has an independent switch 40 for controlling the start and stop of the laser generator. In some other embodiments, the switch 40 may also be omitted, and the rotation of the base 30 relative to the housing 10 (or in other words Switch between the first position and the second position). In addition, when the base described in this application is in the first position, the space under the lower opening is closed, and the entire laser level meter does not work, but it cannot be ruled out in some other embodiments. For example, when there is no need to use a downward plumb beam or a laser surface containing a downward plumb beam, other calibration laser lines can still be used normally, then the first position described at this time can also be used as the second position (that is, the storage position is also working Position), there is no absolute conflict between the two. In summary, those of ordinary skill in the relevant technical fields can make various changes and modifications without departing from the scope of this application. Therefore, all equivalent technical solutions also belong to the scope of this application, and the patent protection of this application The scope should be defined by the claims.

Claims

A laser level (100), which is characterized in that it comprises:

Shell (10);

A laser generator (20), located in the housing (10) and capable of generating a downward plumb beam emitted to the outside of the housing (10) and/or a laser surface containing the downward plumb beam;

The base (30) is pivotally assembled on the bottom surface (102) of the casing (10) and has an attachment portion (301) for external installation;

The housing (10) has a lower opening (101a) for the downward vertical beam and/or laser surface to emit, and a relief space (40) is formed below the lower opening (101a) and above the bottom surface (102) , The base (30) can rotate between a first position and a second position relative to the housing (10), and when the base (30) is in the first position, the attachment portion ( 301) is placed in the relocation space (40).
The laser level (100) according to claim 1, characterized in that a hanging window (101) protrudes from one side of the housing (10), and the lower opening (101a) is provided on the hanging window (101). ), the projection of the hanging window (101) in the downward vertical direction covers the attachment portion (301) in the first position.
The laser level (100) according to claim 2, wherein the attachment portion (301) is a magnetic attachment portion or a fixing clip or a fixing hole.
The laser level (100) according to claim 2, wherein the attachment portion (301) is fixed to the base (30) and has an attachment surface (3011), when the base (30) is placed When in the first position, the suspended window (101) has an outer side wall (1011) that is generally flush with the attachment surface (3011).
The laser level (100) according to any one of claims 1 to 4, wherein the base (30) is non-detachably assembled to the housing (10).
The laser level (100) according to any one of claims 1 to 4, wherein the laser level (100) has a locking structure for locking the base (30) at the first position.
The laser level (100) according to claim 6, wherein the base (30) is attached to the bottom surface (102) of the housing (10), and the locking structure includes An elastic thimble (302) of the seat (30) and a receiving hole (1021) arranged on the bottom surface (102) for accommodating the elastic thimble (302).
The laser level (100) according to claim 6, wherein the base (30) has at least one preset second position (B) that can be locked by a locking structure in the pivoting interval, when When the base (30) is in the second position, the attachment portion (301) leaves the vacant space (40).
The laser level (100) according to claim 6, characterized in that, the housing (10) has a pivot shaft (P) for the base (30) to pivot, and the vibration isolator (50) comprises An inner sleeve (501) sleeved on the pivot shaft (P) and an outer sleeve (503) embedded in the base (30), the inner sleeve (501) and the outer sleeve (503) ) Are connected by several ribs (505) distributed in the circumferential direction at intervals.
The laser level (100) according to claim 9, characterized in that the pivot shaft (P) is arranged on the housing (10), and the peripheral edge of the vibration isolation member (50) is fixed to the base ( 30), the middle part of the vibration isolation member (50) is fixed to the pivot shaft (P).