A laser level plummet locking mechanism

By designing a locking mechanism that includes a lower chassis, housing, actuating ring, and locking block, the problem of easy collision during transportation of the laser level's weight has been solved, achieving stable locking of the weight and extending its lifespan.

CN224681565UActive Publication Date: 2026-08-25ZHEJIANG SHIJING TOOLS CO LTD
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Patent Information

Application Number
CN202522263608.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-08-25
Estimated Expiration
2035-10-27

AI Technical Summary

Technical Problem

The weight of a laser level is prone to collision with other components during transportation, which can lead to a decrease in accuracy or damage. Existing technology lacks an effective locking mechanism.

Method used

A locking mechanism comprising a lower chassis, a housing, a toggle ring, and a locking block is designed. Through the cooperation of the limiting groove and the guide groove, multiple sets of simultaneous locking of the hammer are achieved. The rotation of the toggle ring changes the position of the limiting groove and the guide groove, gradually approaching the hammer for locking.

Benefits of technology

This technology enables stable locking of the hammer during transportation, preventing collisions, extending the hammer's service life, and improving operational convenience and locking effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a laser level heavy hammer locking mechanism, include: lower bottom (1), the upper side is equipped with the casing (2), the casing (2) is equipped with arc opening (3) in the side wall, the upper side is equipped with the through -hole (4) for the heavy hammer to pass through, the through -hole (4) is equipped with the guide groove (5) of the number more than two groups and radial setting outside, the casing (2) is equipped with the knob ring (6) rotatable to the casing (2) in, the knob ring (6) includes the ring body (7) with the casing (2) is opposite, the ring body (7) one side is equipped with the knob piece (8) with arc opening (3) corresponds, the ring body (7) in is equipped with the limit slot (9) with the number corresponding of guide groove (5), limit slot (9) with guide groove (5) in through the installation pin (10) is equipped with the lock block (11). It can effectively realize to the heavy hammer and lock, avoid the heavy hammer in the transport handling process and shake and hit, reduce the risk of heavy hammer damage.
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Description

Technical Field

[0001] This utility model relates to a locking mechanism, and more particularly to a locking mechanism for a laser level weight. Background Technology

[0002] A laser level is an instrument that uses laser technology to measure horizontal and vertical alignment, and is widely used in construction, decoration, and engineering surveying. It emits a laser beam to create clear horizontal or vertical lines on the object being measured, helping users accurately determine whether a plane is level or vertical. The plumb bob in a laser level is mainly used to determine the plumb line, ensuring the accuracy of the instrument's horizontal and vertical reference lines. The plumb bob maintains a vertical position under its own weight, providing a stable reference for measurement. During transportation, the plumb bob is prone to collisions with other parts of the laser level, leading to a decrease in its accuracy or even damage. Utility Model Content

[0003] The purpose of this invention is to provide a locking mechanism for the weight of a laser level. It effectively locks the weight, preventing it from shaking or impacting during transport and reducing the risk of damage.

[0004] The technical solution of this utility model: a laser level counterweight locking mechanism, comprising:

[0005] The lower chassis has a housing on the upper side;

[0006] The housing has an arc-shaped opening on the side wall and a through hole on the upper side for the weight to pass through. There are more than two sets of radially arranged guide grooves outside the through hole. The housing has a rotating actuating ring inside the housing.

[0007] The actuating ring includes a ring body opposite to the housing, a paddle corresponding to the arc-shaped opening on one side of the ring body, a limiting groove corresponding to the number of guide grooves in the ring body, and a locking block in the limiting groove and the guide groove through a mounting pin.

[0008] In the aforementioned laser level weight locking mechanism, the limiting groove is an arc-shaped limiting groove, and the distances from both ends of the limiting groove to the center are equal to the distances from both ends of the guide groove to the center.

[0009] In the aforementioned laser level weight locking mechanism, the number of limiting grooves and guide grooves is three sets.

[0010] In the aforementioned laser level weight locking mechanism, the locking block includes mounting parts located on the upper side of the housing and the lower side of the ring body. The mounting parts are provided with pin holes corresponding to the mounting pins, and a clamping part for clamping the weight is provided between the two sets of mounting parts.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] This application sets up a toggle ring, which causes the position of the limiting groove relative to the guide groove to change during the rotation of the toggle ring. The overlapping position of the two gradually moves closer to the center, thereby gradually bringing the mounting pin position closer to the center, so that the clamping part contacts the counterweight and achieves locking. The operation is convenient and quick, and multiple sets of locking blocks can be locked simultaneously, with good locking effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the shell of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the actuating ring of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the locking block of this utility model.

[0017] The markings in the attached diagram are as follows: 1-lower chassis, 2-housing shell, 3-arc-shaped opening, 4-through hole, 5-guide groove, 6-toggle ring, 7-ring body, 8-toggle piece, 9-limiting groove, 10-mounting pin, 11-locking block, 11.1-mounting part, 11.2-clamping part. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0019] Example. A laser level counterweight locking mechanism, configured as follows: Figure 1-4 As shown, it includes:

[0020] The lower chassis 1 has a housing 2 on its upper side;

[0021] The housing 2 has an arc-shaped opening 3 on its side wall and a through hole 4 on its upper side for the passage of a counterweight. There are more than two sets of radially arranged guide grooves outside the through hole 4. The housing 2 has a toggle ring 6 that can rotate relative to the housing 2.

[0022] The actuating ring 6 includes a ring body 7 opposite to the housing 2. One side of the ring body 7 is provided with a paddle 8 corresponding to the arc-shaped opening 3. The ring body 7 is provided with a limiting groove 9 corresponding to the number of guide grooves 5. The limiting groove 9 and the guide groove 5 are provided with a locking block 11 through a mounting pin 10.

[0023] The limiting groove 9 is an arc-shaped limiting groove, and the distance from both ends of the limiting groove 9 to the center is equal to the distance from both ends of the guide groove 5 to the center.

[0024] The number of limiting grooves 9 and guide grooves 5 is three sets.

[0025] The locking block 11 includes mounting portions 11.1 located on the upper side of the housing 2 and the lower side of the ring 7. The mounting portions 11.1 are provided with pin holes corresponding to the mounting pins 10, and a clamping portion 11.2 for clamping the counterweight is provided between the two sets of mounting portions 11.1.

[0026] The working principle of this embodiment is as follows: During installation, the copper core of the laser level's hammer passes through the lower plate 1, the housing 2, and the actuating ring 3, and the mounting pin 10 passes through the limiting groove 9 and the guide groove 5 in sequence. When it is necessary to lock the laser level's hammer, the actuating plate 8 drives the ring 7 to rotate. When the ring 7 rotates, it rotates relative to the housing 2, and the relative position of the limiting groove 9 and the guide groove 5 changes, thereby changing the distance of the mounting pin 10 relative to the center of the circle. As the distance between the mounting pin 10 and the copper core of the hammer continuously decreases, the hammer can be locked. This application can achieve simultaneous locking of the hammer by multiple sets of locking blocks 11, resulting in a better locking effect and preventing serious collisions during the handling and transportation of the hammer, which would affect its service life. Reverse rotation of the actuating plate can gradually increase the distance between the mounting pin 10 and the hammer, thereby unlocking the hammer.

Claims

1. A laser level counterweight locking mechanism, characterized in that, include: The lower chassis (1) has a housing (2) on the upper side. The housing (2) has an arc-shaped opening (3) on its side wall and a through hole (4) on its upper side for the passage of a heavy hammer. There are more than two sets of radially arranged guide grooves (5) outside the through hole (4). The housing (2) has a rotating ring (6) inside it that can rotate relative to the housing (2). The actuating ring (6) includes a ring body (7) opposite to the housing (2). One side of the ring body (7) is provided with a paddle (8) corresponding to the arc-shaped opening (3). The ring body (7) is provided with a limiting groove (9) corresponding to the number of guide grooves (5). The limiting groove (9) and the guide groove (5) are provided with a locking block (11) through a mounting pin (10).

2. The laser level counterweight locking mechanism according to claim 1, characterized in that: The limiting groove (9) is an arc-shaped limiting groove, and the distance from both ends of the limiting groove (9) to the center is equal to the distance from both ends of the guide groove (5) to the center.

3. The laser level counterweight locking mechanism according to claim 1, characterized in that: The number of limiting grooves (9) and guide grooves (5) is three sets.

4. The laser level counterweight locking mechanism according to claim 1, characterized in that: The locking block (11) includes mounting parts (11.1) located on the upper side of the housing (2) and the lower side of the ring (7). The mounting parts (11.1) are provided with pin holes corresponding to the mounting pins (10), and a clamping part (11.2) for clamping the weight is provided between the two sets of mounting parts (11.1).