High-precision adjustable calibration laser leveling instrument

Abstract

The invention discloses a high-precision adjustable calibration laser leveling instrument, and relates to the technical field of measurement, the upper end and the lower end of a rotating arm are obliquely and parallelly provided with a second reflective mirror and a first reflective mirror respectively, the second reflective mirror corresponds to a second light outlet hole in the side wall of the top end of the rotating arm, and the first reflective mirror corresponds to a light inlet hole formed in the lower end of the rotating arm; the rotating arm is rotated and completely arranged in the leveling instrument body, the light through hole corresponds to the laser emitter, and point-shaped laser beams emitted by the laser emitter are projected outwards to a target wall surface through the light through hole to form light spots; the rotating arm is completely screwed out of the leveling instrument body, the light inlet hole and the laser transmitter are coaxial, laser rays emitted by the laser transmitter irradiate the first reflective mirror through the light inlet hole, the first reflective mirror reflects point-shaped laser beams to the second reflective mirror, the second reflective mirror emits the laser rays out of the second light outlet hole, and then the laser rays are reflected to the second reflective mirror. The laser is converted by the lens to form a laser line overlapped with the datum plane of the leveling instrument body; the overall working length is increased, and functions are diversified.

Description

Technical Field

[0001] The present invention relates to the field of measurement technology, and particularly relates to a high-precision adjustable calibration laser level. Background Art

[0002] In the construction and decoration industries, due to its portability and low cost, the level is highly used.

[0003] However, the traditional level can only perform laser dotting operations and cannot perform laser line marking operations. It needs to be used in conjunction with a laser line marker, but the laser line marker is costly, which limits its usage frequency and reduces the construction efficiency. At the same time, the length of the existing laser level is limited, which limits the measurement length range. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-precision adjustable calibration laser level for the defects and deficiencies of the prior art. By rotating, not only can the level draw a marking line, but also dot, and at the same time, it can increase the overall working length, with diversified functions.

[0005] To achieve the above object, the present invention adopts the following technical solutions: It includes a level body and a laser irradiation component; the laser irradiation component is installed at one end of the level body; the laser irradiation component includes: A fixed seat, which is installed on the housing of the level body; A rotating arm, which is hollow and rotatably installed on the fixed seat. Reflector two and reflector one are respectively installed at the upper and lower ends of the rotating arm obliquely and parallelly. Reflector two is correspondingly arranged with the light outlet hole two on the side wall of the top end of the rotating arm, and reflector one is correspondingly arranged with the light inlet hole opened at the lower end of the rotating arm. The laser emitter is installed inside the fixed seat; a light passing hole corresponding to the laser emitter is penetrated through the wall of the rotating arm. When the rotating arm is completely placed inside the level body, the light passing hole corresponds to the laser emitter; when the rotating arm rotates out of the level body, the light inlet hole corresponds to the laser emitter.

[0006] Preferably, reflector two is installed at the bottom end of an adjustable mounting seat, and the adjustable mounting seat is provided with an adjusting structure for calibrating the parallelism between reflector two and reflector one.

[0007] Preferably, a protective cover is covered outside the adjustable mounting seat.

[0008] Preferably, a handle is provided at the top of the rotating arm.

[0009] Preferably, a lens is fixedly installed on the outer port of the second light-emitting hole by using a fixed end cap; when the rotating arm is fully screwed out of the spirit level body, the incident light hole and the laser emitter are coaxial at this time. The laser beam emitted by the laser emitter irradiates onto the first reflector through the incident light hole. The first reflector reflects the dot-like laser beam to the second reflector, and the second reflector emits the laser beam out of the second light-emitting hole. After being converted by the lens, a laser marking line that coincides with the reference plane of the spirit level body is formed.

[0010] Preferably, rotate the rotating arm and place it completely inside the spirit level body. At this time, the light-passing hole corresponds to the laser emitter. The dot-like laser beam emitted by the laser emitter projects outward through the light-passing hole onto the target wall surface to form a light spot.

[0011] Preferably, the housing assembly includes a top shell and a bottom shell; the top shell and the bottom shell are arranged opposite to each other up and down and are fixedly connected by screws. The top shell is connected to the top wall of the housing of the spirit level body, and the bottom shell is connected to the bottom wall of the housing of the spirit level body. The tail end of the top shell is snap-fitted with an upper tail cover, and the tail end of the bottom shell is snap-fitted with a lower tail cover. The upper tail cover and the lower tail cover are buckled together. Both the lower edge of the upper tail cover and the upper edge of the lower tail cover are provided with semi-circular arc structures. The two symmetric semi-circular arc structures form the first light-emitting hole, and this first light-emitting hole is arranged corresponding to the light-passing hole; the fixed seat is located between the top shell and the bottom shell, and the rotating arm is movably arranged in the slot opened in the top shell.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a high-precision adjustable calibration laser spirit level. By rotating the rotating arm, the light emitted by the laser emitter can directly mark dots or draw marking lines, with diverse functions. And the laser beam projected by turning out the rotating arm coincides with the reference plane of the spirit level body, greatly expanding the working length of the spirit level; at the same time, the second reflector is installed by using an adjustable mounting seat with an adjustment structure, and the installation position of the second reflector can be adjusted and calibrated so that it can be kept parallel to the first reflector. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present invention.

[0014] Figure 2 is a schematic installation structure diagram of the laser irradiation assembly and the housing assembly in the present invention.

[0015] Figure 3 is an exploded top view of the laser irradiation assembly and the housing assembly in the present invention.

[0016] Figure 4 is an exploded bottom view of the laser irradiation assembly and the housing assembly in the present invention.

[0017] Figure 5 is an exploded view of the adjustable laser assembly in the present invention.

[0018] Figure 6 It is a schematic connection diagram of the adjustable mounting base and the second rearview mirror in the present invention.

[0019] Figure 7 It is a schematic structural diagram of the rotating arm in the present invention.

[0020] Figure 8 It is a state diagram of the present invention for marking line projection.

[0021] Explanation of reference numerals: Level ruler body 1, laser irradiation assembly 2, housing assembly 3, handle 4, top shell 5, bottom shell 6, upper tail cover 7, lower tail cover 8, first light outlet 9, fixed seat 10, rotating arm 11, rotating shaft mounting hole 11-1, light passing hole 11-2, light inlet hole 11-3, second light outlet 11-4, laser emitter 12, first rearview mirror 13, second rearview mirror 14, adjustable mounting base 15, adjusting structure 15-1, fixing screw 16, protective cover 17, lens 18, fixed end cover 19. Specific implementation mode

[0022] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0023] As Figures 1-7 shown, the following technical solutions are adopted in this specific implementation mode: It includes a level ruler body 1 and a laser irradiation assembly 2. A spirit level is installed in the middle of the level ruler body 1, and hand-held openings are provided on both sides of the spirit level. A power supply is built into the level ruler body 1 near the laser irradiation assembly 2 to supply power to the laser emitter 12; the laser irradiation assembly 2 includes: A fixed seat 10, and the fixed seat 10 is fixedly installed on the front side wall of the housing of the level ruler body 1 by screws; The rotating arm 11 is hollow and is rotatably mounted on the fixed seat 10 by means of a rotating shaft (a rotating shaft mounting hole 11-1 for mounting the rotating shaft is provided on the rotating arm 11). A reflector 13 is installed at a 45° angle on the lower end of the rotating arm 11. The reflector 13 is arranged corresponding to a light entrance hole 11-3 provided at the lower end of the rotating arm 11. The light entrance hole 11-3 is arranged corresponding to a laser emitter 12. The laser emitter 12 is installed inside the fixed seat 10. A light exit hole 11-4 is provided on the top side wall of the rotating arm 11. A lens 18 is fixedly mounted on the outer port of the light exit hole 11-4 by means of a fixed end cover 19. After the laser line is irradiated on the lens 18, a parallel light beam is formed to meet the high collimation requirement required for measurement. A light through hole 11-2 corresponding to the laser emitter 12 is provided through the rod wall of the rotating arm 11. The top opening of the rotating arm 11 is installed with an adjustable mounting seat 15 by means of four fixing screws 16, and the reflector 2 14 is installed at the bottom of the adjustable mounting seat 15 and is parallel to the reflector 1 13; the reflector 2 14 is arranged corresponding to the light outlet hole 2 11-4, and an adjustment structure 15-1 is integrally formed at the lower part of the plate surface of the adjustable mounting seat 15, and the adjustment structure 15-1 is arranged in movable contact with the top opening of the rotating arm 11. Before fixing, the parallelism of the reflector 2 14 and the reflector 1 13 can be calibrated by rotating the adjustable mounting seat 15; the outer cover of the adjustable mounting seat 15 is provided with a protective cover 17 with an arc-shaped clearance groove on one side wall, and the protective cover 17 is buckled with the top of the rotating arm 11, and the arc-shaped clearance groove is clamped with the outer wall of the light outlet hole 2 11-4; a handle 4 is integrally formed on one side wall of the top of the rotating arm 11, which is convenient for rotating the rotating arm placed in the outer shell assembly 3 out.

[0024] The laser irradiation assembly 2 is installed in the housing assembly 3, and the housing assembly 3 includes a top shell 5 and a bottom shell 6; the top shell 5 and the bottom shell 6 are arranged opposite to each other up and down, and are fixed by screw connection, and the top shell 5 is connected to the top wall of the shell of the level ruler body 1, and the bottom shell 6 is connected to the bottom wall of the shell of the level ruler body 1, and the tail end of the top shell 5 is clamped with a tail cover upper shell 7, and the tail end of the bottom shell 6 is clamped with a tail cover lower shell 8, and the tail cover upper shell 7 and the tail cover lower shell 8 are buckled, and the lower edge of the tail cover upper shell 7 and the upper edge of the tail cover lower shell 8 are both provided with a semicircular arc structure , two symmetrical semicircular arc structures constitute a light output hole 9, and the light output hole 9 is arranged corresponding to the light through hole 11-2; the fixed seat 10 is located between the top shell 5 and the bottom shell 6, and the rotating arm 11 is movably arranged in the slot opened in the top shell 5; when the rotating arm 11 is completely placed inside the outer shell assembly 3, the light through hole 11-2, the laser emitter 12 and the light output hole 9 are coaxial; when the rotating arm 11 is rotated out of the outer shell assembly 3 and contacts the outer shell assembly 3, the light input hole 11-3 is coaxial with the laser emitter 12.

[0025] When using the present invention for laser dotting, rotate the rotating arm 11 and place it completely inside the housing assembly 3. At this time, the light passing hole 11-2 corresponds to the laser emitter 12. The dot-like laser beam emitted by the laser emitter 12 passes through the light passing hole 11-2 and is projected out through the first light output hole 9 onto the target wall surface to form a light spot. When using the present invention for laser marking, pull the handle 4 to rotate the rotating arm 11 out of the housing assembly 3 until the rotating arm 11 contacts the housing assembly 3 (as Figure 1 shown). At this time, the light input hole 11-3 and the laser emitter 12 are coaxial. The laser line emitted by the laser emitter 12 irradiates onto the first reflecting mirror 13 through the light input hole 11-3. The first reflecting mirror 13 reflects the laser line to the second reflecting mirror 14. The second reflecting mirror 14 emits the laser line out through the second light output hole 11-4 and forms a parallel light beam through the lens 18, and finally forms a marking line that coincides with the reference plane of the spirit level body 1 and meets the requirements of high collimation (as Figure 8 shown).

[0026] Compared with the prior art, the beneficial effects of the present invention are: By rotating the rotating arm, the light emitted by the laser is directly used for dotting or marking, with diversified functions; The laser line projected by rotating the rotating arm coincides with the reference plane of the spirit level body, greatly expanding the working length of the spirit level; The second reflecting mirror is installed by using an adjustable mounting seat with an adjustment structure, and the installation position of the second reflecting mirror can be adjusted and calibrated so that it can be parallel to the first reflecting mirror, improving the accuracy of the emitted line.

[0027] For those skilled in the art, they can modify the technical solutions recorded in the foregoing embodiments and perform equivalent substitution of some technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A high-precision adjustable calibration laser level, which comprises a level body (1) and a laser irradiation component (2); the laser irradiation component (2) is installed at one end of the level body (1); characterized in that: The laser irradiation assembly (2) includes: A fixed seat (10), and the fixed seat (10) is installed on the housing of the spirit level body (1); A rotating arm (11), the rotating arm (11) is hollow, and is rotatably installed on the fixed seat (10). A second reflector (14) and a first reflector (13) are respectively installed at the upper and lower ends of the rotating arm (11) in an inclined and parallel manner. The second reflector (14) is correspondingly arranged with a light outlet hole two (11-4) on the side wall of the top end of the rotating arm (11), and the first reflector (13) is correspondingly arranged with a light inlet hole (11-3) opened at the lower end of the rotating arm (11). A laser emitter (12) is installed inside the fixed seat (10); A light passing hole (11-2) corresponding to the laser emitter (12) is penetrated through the rod wall of the rotating arm (11). When the rotating arm (11) is completely placed inside the spirit level body (1), the light passing hole (11-2) corresponds to the laser emitter (12); When the rotating arm (11) is completely screwed out of the spirit level body (1), the light inlet hole (11-3) corresponds to the laser emitter (12).

2. The high-precision adjustable calibration laser level according to claim 1, wherein: The second reflector (14) is installed at the bottom end of an adjustable mounting seat (15), and the adjustable mounting seat (15) is provided with an adjusting structure (15-1) for calibrating the parallelism between the second reflector (14) and the first reflector (13).

3. The high-precision adjustable calibration laser level according to claim 2, characterized in that: A protective cover (17) is covered outside the adjustable mounting seat (15).

4. A high-precision adjustable calibration laser level according to claim 1, characterized in that: A handle (4) is provided at the top of the rotating arm (11).

5. The high-precision adjustable calibration laser level according to claim 2, wherein: A lens (18) is fixedly installed on the outer port of the light outlet hole two (11-4) by a fixed end cap (19); When the rotating arm (11) is completely screwed out of the spirit level body (1), at this time, the light inlet hole (11-3) and the laser emitter (12) are coaxial. The laser beam emitted by the laser emitter (12) irradiates the first reflector (13) through the light inlet hole (11-3). The first reflector (13) reflects the dot-like laser beam to the second reflector (14), and the second reflector (14) emits the laser beam out of the light outlet hole two (11-4), and forms a laser marking line that coincides with the reference plane of the spirit level body (1) after being converted by the lens (18).

6. The high-precision adjustable calibration laser level according to claim 2, characterized in that: Rotate the rotating arm (11) and completely place it inside the spirit level body (1). At this time, the light passing hole (11-2) corresponds to the laser emitter (12). The dot-like laser beam emitted by the laser emitter (12) projects outward through the light passing hole (11-2) onto the target wall surface to form a light spot.

7. A high-precision adjustable calibration laser level according to claim 1, characterized in that: The laser irradiation component (2) is installed inside the housing component (3), and the housing component (3) includes a top shell (5) and a bottom shell (6); the top shell (5) and the bottom shell (6) are arranged opposite to each other vertically, and are fixed by screw connection. The top shell (5) is connected to the top wall of the housing of the spirit level body (1), and the bottom shell (6) is connected to the bottom wall of the housing of the spirit level body (1). The tail end of the top shell (5) is snap-fitted with an upper tail cover (7), and the tail end of the bottom shell (6) is snap-fitted with a lower tail cover (8). The upper tail cover (7) and the lower tail cover (8) are buckled together, and semi-circular arc structures are provided on the lower edge of the upper tail cover (7) and the upper edge of the lower tail cover (8). Two symmetrical semi-circular arc structures form a first light outlet hole (9), and the first light outlet hole (9) is arranged corresponding to the light passing hole (11-2); the fixing seat (10) is located between the top shell (5) and the bottom shell (6), and the rotating arm (11) is movably arranged in the slot opened in the top shell (5).

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