Detection jig for laser range finder

Abstract

The detection jig comprises a jig table and the laser range finder, a fixing seat is fixedly arranged on one side of the upper end of the jig table, a vertical groove is formed in the upper end of the fixing seat, a connecting plate penetrating and extending to the outer side of the fixing seat is movably connected in the vertical groove, and a clamping groove is formed in one side of the fixing seat. A first sliding groove is formed in the upper end of the jig table, a mounting structure is slidably connected to the upper end of the first sliding groove, the mounting structure comprises a movable seat, clamping plates are movably connected to the two sides of the upper end of the movable seat, and the laser range finder is arranged between the two clamping plates. The fixing device has the advantages that the connecting plates move upwards along the interiors of the vertical grooves, and when the movable grooves correspond to the limiting grooves, the limiting blocks are pushed by the springs to penetrate and extend to the outer sides of the connecting plates and are connected with the corresponding limiting grooves in an inserted mode, so that the height of the connecting plates is adjusted, and the connecting plates are fixed; distance detection can be conveniently carried out according to the laser emission height of the laser range finder.

Description

Technical Field

[0001] This utility model relates to the field of laser rangefinder testing technology, specifically a testing fixture for laser rangefinders. Background Technology

[0002] A laser rangefinder is an instrument that measures the distance to a target by modulating a specific parameter of a laser beam. It accurately determines the distance to a target using this modulated laser parameter. A pulsed laser rangefinder emits a single or a series of short pulsed laser beams towards the target. A photoelectric element receives the reflected laser beam, and a timer measures the time from emission to reception to calculate the distance from the rangefinder to the target. To ensure the accuracy of the laser rangefinder, it needs to be tested using a testing fixture.

[0003] Some laser rangefinder testing fixtures are not convenient to adjust in height and position, so they cannot effectively test whether the laser rangefinder can accurately measure distances; therefore, they do not meet the existing requirements. In response, we propose a testing fixture for laser rangefinders. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a testing fixture for a laser rangefinder. To solve the above technical problem, the technical solution of this utility model is as follows:

[0005] A testing fixture for a laser rangefinder includes a fixture platform and a laser rangefinder. A fixed base is fixedly provided on one side of the upper end of the fixture platform. A vertical groove is formed inside the upper end of the fixed base. A connecting plate extending through and to the outside of the fixed base is movably connected inside the vertical groove. A first sliding groove is formed on one side of the fixed base, at the upper end of the fixture platform. An installation structure is slidably connected to the upper end of the first sliding groove. The installation structure includes a movable base. Clamping plates are movably connected to both sides of the upper end of the movable base. The laser rangefinder is disposed between the two clamping plates.

[0006] Preferably, the movable seat is U-shaped, and a second sliding groove is provided at the upper end of the movable seat, with the bottom ends of the two clamping plates slidably connected to the inside of the second sliding groove.

[0007] Preferably, the two clamping plates are rotatably connected to threaded rods on opposite sides via a pivot, with the threaded rods threaded through the movable seat at the end away from the clamping plates and extending to the outside of the movable seat.

[0008] Preferably, the connecting plate has movable grooves on both sides near the bottom end, and each of the two movable grooves has a limiting block that extends through to the outside of the connecting plate. The limiting block has a connecting groove on the side near the inside of the movable groove.

[0009] Preferably, a crossbar is fixedly connected inside the movable groove, one end of the crossbar extends through into the interior of the connecting groove and is fixedly connected to a limiting plate, and a spring is fixedly connected between the side of the limiting block near the inner wall of the movable groove and the inner wall of the movable groove, and the spring is wound around the outer surface of the crossbar.

[0010] Preferably, a number of symmetrical limiting grooves are provided at equal intervals on both sides of the inner wall of the vertical groove, and the limiting block extends through to one end of the connecting plate and is inserted into the corresponding limiting groove.

[0011] Preferably, the limiting block is arranged in an isosceles trapezoidal structure, and the outer surface of the limiting block slides in contact with the inner wall of the limiting groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this utility model, a laser rangefinder is placed between two clamping plates. Then, by rotating the threaded rods on both sides, the threaded rods on both sides are threaded through the movable seat, and the clamping plates are pushed closer to each other along the second sliding groove, thereby clamping and fixing the laser rangefinder to the upper end of the movable seat.

[0014] 2. This utility model allows the connecting plate to be pulled upwards, causing the inner wall of the limiting groove to slide against the limiting block. This forces the limiting block to move along the outer surface of the crossbar towards the interior of the movable groove, compressing the spring. Subsequently, the connecting plate can move upwards along the interior of the vertical groove. When the movable groove aligns with the limiting groove, the spring releases its elastic force and pushes the limiting block through to the outer side of the connecting plate, where it engages with the corresponding limiting groove. This adjusts and fixes the height of the connecting plate, facilitating distance detection based on the laser emission height of the laser rangefinder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the installation structure of this utility model;

[0017] Figure 3 This is a side sectional view of the entire utility model;

[0018] Figure 4 This utility model Figure 3 A schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Fixture table; 101. First slide groove; 2. Laser rangefinder; 3. Fixed base; 301. Vertical groove; 302. Limiting groove; 4. Connecting plate; 401. Movable groove; 5. Mounting structure; 501. Movable base; 50101. Second slide groove; 502. Clamping plate; 503. Threaded rod; 6. Limiting block; 601. Connecting groove; 7. Crossbar; 8. Limiting plate; 9. Spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] like Figure 1 As shown, one embodiment of this utility model provides a testing fixture for a laser rangefinder, including a fixture platform 1 and a laser rangefinder 2. A fixed base 3 is fixedly provided on one side of the upper end of the fixture platform 1. A vertical groove 301 is opened inside the upper end of the fixed base 3. A connecting plate 4 extending through and to the outside of the fixed base 3 is movably connected inside the vertical groove 301. A first sliding groove 101 is opened on one side of the fixed base 3 and at the upper end of the fixture platform 1. An installation structure 5 is slidably connected to the upper end of the first sliding groove 101. The installation structure 5 includes a movable base 501. Clamping plates 502 are movably connected to both sides of the upper end of the movable base 501. The laser rangefinder 2 is disposed between the two clamping plates 502.

[0022] As a preferred technical solution in this embodiment, such as Figure 2 As shown, the movable seat 501 is U-shaped. The upper end of the movable seat 501 is provided with a second slide groove 50101. The bottom ends of the two clamping plates 502 are slidably connected to the inside of the second slide groove 50101. The two clamping plates 502 are rotatably connected to a threaded rod 503 on the side away from each other through a rotating shaft. The end of the threaded rod 503 away from the clamping plate 502 is threaded through the movable seat 501 and extends to the outside of the movable seat 501.

[0023] In this embodiment, the laser rangefinder 2 is placed between two clamping plates 502. Then, by rotating the threaded rods 503 on both sides, the threaded rods 503 on both sides are threaded through the movable seat 501, and the clamping plates 502 are pushed closer to each other along the second sliding groove 50101, thereby clamping and fixing the laser rangefinder 2 to the upper end of the movable seat 501.

[0024] As a preferred technical solution in this embodiment, such as Figure 3 and Figure 4As shown, movable grooves 401 are provided on both sides of the connecting plate 4 near the bottom. Limiting blocks 6 extending through to the outside of the connecting plate 4 are slidably connected inside the two movable grooves 401. A connecting groove 601 is provided on the side of the limiting block 6 near the inside of the movable groove 401. A crossbar 7 is fixedly connected inside the movable groove 401. One end of the crossbar 7 extends through to the inside of the connecting groove 601 and is fixedly connected to a limiting plate 8. A spring 9 is fixedly connected between the side of the limiting block 6 near the inner wall of the movable groove 401 and the inner wall of the movable groove 401. The spring 9 is wrapped around the outer surface of the crossbar 7. Several symmetrical limiting grooves 302 are provided at equal intervals on both sides of the inner wall of the vertical groove 301. One end of the limiting block 6 extending through to the outside of the connecting plate 4 is inserted into the corresponding limiting groove 302. The limiting block 6 is set in an isosceles trapezoidal structure, and the outer surface of the limiting block 6 slides in contact with the inner wall of the limiting groove 302.

[0025] In this embodiment, pulling the connecting plate 4 upward causes the inner wall of the limiting groove 302 to slide in contact with the limiting block 6, squeezing the limiting block 6 along the outer surface of the crossbar 7 and moving it towards the interior of the movable groove 401, thus compressing the spring 9. Subsequently, the connecting plate 4 can move upward along the interior of the vertical groove 301. When the movable groove 401 corresponds to the limiting groove 302, the spring 9 releases its elastic force and pushes the limiting block 6 through to the outside of the connecting plate 4, where it is inserted into the corresponding limiting groove 302. This adjusts and fixes the height of the connecting plate 4, facilitating distance detection based on the laser emission height of the laser rangefinder 2.

[0026] When using the laser rangefinder testing fixture, the laser rangefinder 2 is placed between two clamping plates 502. Then, by rotating the threaded rods 503 on both sides, the threaded rods 503 on both sides are threaded through the movable seat 501, pushing the clamping plates 502 closer together along the second sliding groove 50101, thereby clamping and fixing the laser rangefinder 2 to the upper end of the movable seat 501. Then, according to the laser emission height of the laser rangefinder 2, the connecting plate 4 is pulled upward, causing the inner wall of the limiting groove 302 to pass through the limiting block 6. The sliding contact of the limiting block 6 along the outer surface of the crossbar 7 moves towards the interior of the movable groove 401 and compresses the spring 9. Subsequently, the connecting plate 4 can move upward along the interior of the vertical groove 301. When the movable groove 401 corresponds to the limiting groove 302, the spring 9 releases its elastic force and pushes the limiting block 6 through to the outside of the connecting plate 4 and inserts it into the corresponding limiting groove 302, thereby adjusting and fixing the height of the connecting plate 4, which is convenient for distance detection based on the laser emission height of the laser rangefinder 2.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A testing fixture for a laser rangefinder, comprising a fixture table (1) and a laser rangefinder (2), characterized in that: A fixed seat (3) is fixedly provided on one side of the upper end of the fixture table (1). A vertical groove (301) is provided inside the upper end of the fixed seat (3). A connecting plate (4) extending through and to the outside of the fixed seat (3) is movably connected inside the vertical groove (301). A first sliding groove (101) is provided on one side of the fixed seat (3) and at the upper end of the fixture table (1). An installation structure (5) is slidably connected to the upper end of the first sliding groove (101). The installation structure (5) includes a movable seat (501). Clamping plates (502) are movably connected to both sides of the upper end of the movable seat (501). The laser rangefinder (2) is located between the two clamping plates (502).

2. The detection fixture for a laser rangefinder according to claim 1, characterized in that: The movable seat (501) is U-shaped, and a second sliding groove (50101) is provided at the upper end of the movable seat (501). The bottom ends of the two clamping plates (502) are slidably connected to the inside of the second sliding groove (50101).

3. A detection fixture for a laser rangefinder according to claim 2, characterized in that: The two clamping plates (502) are rotatably connected to threaded rods (503) on opposite sides via a pivot. The threaded rod (503) at the end away from the clamping plate (502) is threaded through the movable seat (501) and extends to the outside of the movable seat (501).

4. A testing fixture for a laser rangefinder according to claim 1, characterized in that: The connecting plate (4) has movable grooves (401) on both sides near the bottom. The two movable grooves (401) are slidably connected with limiting blocks (6) that extend through to the outside of the connecting plate (4). The limiting block (6) has a connecting groove (601) on the side near the inside of the movable groove (401).

5. A testing fixture for a laser rangefinder according to claim 4, characterized in that: A crossbar (7) is fixedly connected inside the movable groove (401). One end of the crossbar (7) extends through the interior of the connecting groove (601) and is fixedly connected to a limiting plate (8). A spring (9) is fixedly connected between the side of the limiting block (6) near the inner wall of the movable groove (401) and the inner wall of the movable groove (401), and the spring (9) is wrapped around the outer surface of the crossbar (7).

6. A testing fixture for a laser rangefinder according to claim 4, characterized in that: The inner wall of the vertical groove (301) has several symmetrical limiting grooves (302) at equal distances on both sides. The limiting block (6) extends through to one end of the connecting plate (4) and is inserted into the corresponding limiting groove (302).

7. A testing fixture for a laser rangefinder according to claim 6, characterized in that: The limiting block (6) is arranged in an isosceles trapezoidal structure, and the outer surface of the limiting block (6) slides in contact with the inner wall of the limiting groove (302).

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