Elevator clearance measuring instrument
By introducing a protective housing and limiting components into the elevator clearance measuring instrument, the problem of easy damage to traditional wedge vernier gauges is solved, improving measurement accuracy and service life, and ensuring the accuracy of elevator safety assessment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-14
AI Technical Summary
The open frame structure of traditional wedge vernier gauges is susceptible to external impacts, which can reduce measurement accuracy and affect elevator safety assessments.
An elevator gap measuring instrument was designed. A protective shell surrounds the wedge-shaped ruler when not in use and is fixed by a limiting component to prevent damage from external forces, thereby improving measurement accuracy and service life.
It effectively protects the wedge-shaped ruler from external damage, improves the service life and reliability of the measuring instrument, and ensures measurement accuracy.
Smart Images
Figure CN224121871U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of elevator gap measurement technology, and in particular to an elevator gap measuring instrument. Background Technology
[0002] In the field of modern industrial measurement, especially in the highly demanding niche scenario of elevator safety inspection, traditional wedge vernier gauges, as a classic measuring tool, have long served as the key tool for gap measurement.
[0003] However, the design flaws of traditional wedge vernier gauges with their open frame structure are becoming increasingly apparent. This structure adopts an integrated metal frame design, and its precision measuring surface (i.e., the working surface directly involved in the measurement) is completely exposed to the external environment, lacking necessary protection mechanisms. It is easily subject to accidental collisions when not in use. Once subjected to external impact, its wedge body may suffer certain physical damage. This physical damage will directly lead to a reduction in the accuracy of the measurement reference surface, thereby affecting the accuracy of the entire measurement result and posing a potential risk to elevator safety assessment. Therefore, an elevator clearance measuring instrument is proposed to solve the above problems. Utility Model Content
[0004] (a) Purpose of the utility model
[0005] To address the technical problems existing in the background art, this utility model proposes an elevator gap measuring instrument. When not in use, the grip sleeve can be limited to the outside of the wedge-shaped ruler. Thus, when subjected to external impact, the protective shell can protect the wedge-shaped ruler, preventing external damage from affecting the measurement accuracy of the wedge-shaped ruler, thereby improving its service life and reliability.
[0006] (II) Technical Solution
[0007] This utility model provides an elevator gap measuring instrument, including a vernier, a wedge-shaped ruler, and a handle. The side end face of the wedge-shaped ruler is connected to the handle, and the wedge-shaped ruler is slidably connected to the inclined surface of the vernier. It also includes a protective shell, which is installed around the outer end of the handle. The protective shell has grooves on both the front and rear sides, and the handle has sliding blocks on both the front and rear sides. The sliding blocks on both sides are slidably connected to the grooves on both sides.
[0008] The upper sidewall of the handle is provided with a second threaded hole and a first threaded hole spaced apart at both ends. The upper sidewall of the protective shell is provided with a limiting component at the right end, and the limiting end of the limiting component is connected to the first threaded hole.
[0009] Preferably, the limiting component includes a butterfly bolt, which passes through the upper end face of the protective housing and is threaded into the interior of the first threaded hole.
[0010] Preferably, it further includes a concave plate and a limiting ring. The concave plate is installed on the top of the protective shell, and the middle part of the butterfly bolt passes through the upper end face of the concave plate. The limiting ring is fixedly sleeved on the threaded shaft of the butterfly bolt and is located between the concave plate and the protective shell.
[0011] Preferably, the wedge-shaped ruler body, the protective shell, and the bottom of the handle are located on the same horizontal plane.
[0012] Preferably, a grip sleeve is installed around the upper surface of the protective shell.
[0013] Preferably, the grip sleeve is made of a non-slip material, preferably rubber.
[0014] Preferably, the wedge-shaped ruler is made of metal and is wedge-shaped. One end of the wedge-shaped ruler is as thin as a knife blade, and the other end of the wedge-shaped ruler is thicker and connected to the handle. The inclined surface of the wedge-shaped ruler is engraved with scales.
[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:
[0016] When this elevator clearance measuring instrument is not in use, the limiting end of the limiting component is disconnected from the first threaded hole, and then the protective shell moves to one side of the wedge-shaped scale. When the limiting end of the limiting component is directly above the second threaded hole, the protective shell is located outside the wedge-shaped scale. At this time, the limiting end of the limiting component connects with the second threaded hole, thus limiting the protective shell to the outside of the wedge-shaped scale. Therefore, when not in use, the protective shell can protect the wedge-shaped scale from external impacts, preventing external damage from affecting the measurement accuracy of the wedge-shaped scale, thereby improving service life and reliability. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of an elevator gap measuring instrument proposed in this utility model.
[0018] Figure 2 This is a three-dimensional view of the elevator clearance measuring instrument proposed in this utility model during protection.
[0019] Figure 3 This is a perspective view of the handle in an elevator clearance measuring instrument proposed in this utility model.
[0020] Figure 4 This is a perspective view of the limiting component in an elevator clearance measuring instrument proposed in this utility model.
[0021] Reference numerals: 1. Vernier; 2. Wedge-shaped scale body; 3. Sliding block; 4. Grip sleeve; 5. Slide groove; 6. Protective shell; 7. Handle; 8. Concave plate; 9. Butterfly bolt; 10. First threaded hole; 11. Second threaded hole; 12. Limiting ring. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0025] like Figure 1-4 As shown, the present invention proposes an elevator gap measuring instrument, including a vernier 1, a wedge-shaped ruler 2 and a handle 7. The side end face of the wedge-shaped ruler 2 is connected to the handle 7. The wedge-shaped ruler 2 is slidably connected to the inclined surface of the vernier 1. It also includes a protective shell 6, which is installed around the outer end of the handle 7. The protective shell 6 has grooves 5 on both the front and rear sides. The handle 7 has sliding blocks 3 on both the front and rear sides. The sliding blocks 3 on both sides are slidably connected to the grooves 5 on both sides.
[0026] The upper sidewall of the handle 7 has a second threaded hole 11 and a first threaded hole 10 spaced apart at both ends. The upper sidewall of the protective shell 6 has a limiting component at the right end. The limiting end of the limiting component is connected to the first threaded hole 10. The wedge-shaped ruler 2 is made of metal and is wedge-shaped. One end of the wedge-shaped ruler 2 is as thin as a knife blade, and the other end of the wedge-shaped ruler 2 is thicker and connected to the handle 7. The inclined surface of the wedge-shaped ruler 2 is engraved with scale.
[0027] In this invention, when in use, the wedge-shaped end of the wedge ruler 2 is inserted into the gap to be measured. The gaps to be measured include the gap between the elevator door leaf, the gap between the elevator door and the sill, the gap between the elevator car and the shaft wall, and the gap between the elevator guide rail joint. Ensure that the end face is in close contact with the surface to be measured. At this time, the vernier 1 will slide on the inclined surface of the wedge ruler 2, so that the gap value can be read by reading the scale on the inclined surface of the wedge ruler 2.
[0028] When not in use, the limiting end of the limiting component is disconnected from the first threaded hole 10, and then the protective shell 6 is moved to one side of the wedge-shaped ruler 2. When the limiting end of the limiting component is directly above the second threaded hole 11, the protective shell 6 is located outside the wedge-shaped ruler 2. At this time, the limiting end of the limiting component is connected to the second threaded hole 11, so that it limits the protective shell 6 to the outside of the wedge-shaped ruler 2. Thus, when not in use, the wedge-shaped ruler 2 can be protected by the protective shell 6 when subjected to external impact, preventing external damage from affecting the measurement accuracy of the wedge-shaped ruler 2, and improving service life and reliability. When it is needed for use, the operation is reversed.
[0029] In an optional embodiment, the limiting component includes a butterfly bolt 9 that passes through the upper end face of the protective housing 6 and is threaded into the interior of the first threaded hole 10.
[0030] It should be noted that when the grip sleeve 4 needs to be moved, the groove 5 on the grip sleeve 4 will slide on the sliding block 3; when the right inner wall of the groove 5 abuts against the sliding block 3, the limiting end of the limiting component is located directly above the second threaded hole 11; when the left inner wall of the groove 5 abuts against the sliding block 3, the limiting end of the limiting component is located directly above the first threaded hole 10.
[0031] In an optional embodiment, a concave plate 8 and a limiting ring 12 are also included. The concave plate 8 is installed on the top of the protective housing 6, and the middle part of the butterfly bolt 9 passes through the upper end face of the concave plate 8. The limiting ring 12 is fixedly sleeved on the threaded shaft of the butterfly bolt 9 and is located between the concave plate 8 and the protective housing 6.
[0032] It should be noted that when the butterfly bolt 9 moves above the first threaded hole 10 or the second threaded hole 11, by rotating the butterfly bolt 9, the butterfly bolt 9 can be threadedly connected to the first threaded hole 10 or the second threaded hole 11, thereby limiting the handle 7 and the protective shell 6.
[0033] The limiting ring 12 can limit the butterfly bolt 9 to prevent it from being lost.
[0034] In an optional embodiment, the bottom of the wedge-shaped ruler 2, the protective shell 6, and the handle 7 are located on the same horizontal plane.
[0035] It should be noted that this ensures both protection and that the bottom surface of the wedge-shaped ruler 2 fits snugly against the measuring surface.
[0036] In an optional embodiment, a grip sleeve 4 is mounted around the upper surface of the protective housing 6. The grip sleeve 4 is made of a non-slip material, preferably rubber.
[0037] It should be noted that the protective casing 6 is designed to allow for a stable grip during measurement, preventing slippage of the hand from affecting measurement accuracy.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An elevator clearance measuring instrument, comprising a vernier (1), a wedge-shaped ruler (2), and a handle (7), wherein the side end face of the wedge-shaped ruler (2) is connected to the handle (7), and the wedge-shaped ruler (2) is slidably connected to the inclined surface of the vernier (1), characterized in that, It also includes a protective shell (6), which is installed around the outer end of the handle (7). The protective shell (6) has a sliding groove (5) on both the front and rear sides. The handle (7) has a sliding block (3) on both the front and rear sides. The sliding blocks (3) on both sides are slidably connected to the sliding groove (5) on both sides. The upper sidewall of the handle (7) has a second threaded hole (11) and a first threaded hole (10) spaced apart on both sides. The upper sidewall of the protective shell (6) has a limiting component on the right side. The limiting end of the limiting component is connected to the first threaded hole (10).
2. The elevator clearance measuring instrument according to claim 1, characterized in that, The limiting component includes a butterfly bolt (9), which passes through the upper end face of the protective housing (6) and is threaded into the interior of the first threaded hole (10).
3. The elevator gap measuring instrument according to claim 2, characterized in that, It also includes a concave plate (8) and a limiting ring (12). The concave plate (8) is installed on the top of the protective shell (6), and the middle part of the butterfly bolt (9) passes through the upper end face of the concave plate (8). The limiting ring (12) is fixedly sleeved on the threaded shaft of the butterfly bolt (9) and located between the concave plate (8) and the protective shell (6).
4. The elevator gap measuring instrument according to claim 1, characterized in that, The bottom of the wedge-shaped ruler (2), the protective shell (6), and the handle (7) are located on the same horizontal plane.
5. The elevator clearance measuring instrument according to claim 1, characterized in that, The upper surface of the protective shell (6) is covered with a grip sleeve (4).
6. The elevator gap measuring instrument according to claim 5, characterized in that, The grip sleeve (4) is made of non-slip material.
7. The elevator clearance measuring instrument according to claim 1, characterized in that, The wedge-shaped ruler (2) is made of metal and is wedge-shaped. One end of the wedge-shaped ruler (2) is as thin as a knife blade, and the other end of the wedge-shaped ruler (2) is thicker and connected to the handle (7). The inclined surface of the wedge-shaped ruler (2) is engraved with scale.