Level gauge adjusting device

Abstract

The utility model discloses a level gauge adjusting device, which relates to the technical field of level gauges, and comprises a base mounted at the top of a three-legged support; a level gauge body is mounted on the upper surface of the top plate; the adjusting screw rod is rotationally connected to the lower surface of the top plate and is in threaded connection with the base; and the adjusting knob is mounted on the circumferential outer wall of the top of the adjusting screw rod. The level gauge has the effect of improving the measurement precision of the level gauge in a settlement state.

Description

Technical Field

[0001] The present application relates to the technical field of levels, and in particular to a level adjustment device. Background Art

[0002] A level is an instrument used to measure the height difference between two places and is commonly used in the field of engineering surveying and mapping.

[0003] When in use, the tripod is usually spread out and placed on the ground, a tape measure is placed at the location where measurement is required, and the corresponding scale on the tape measure is observed through the level lens to measure the height difference.

[0004] However, if the soil on the ground where the tripod is placed is loose, the legs of the tripod will sink, causing the level to move downward as a whole, resulting in measurement errors. Utility Model Content

[0005] The purpose of the utility model of the present application is to improve the situation where measurement errors occur due to the sinking of the level instrument caused by loose soil and the like. The present application provides a level instrument adjustment device.

[0006] The present application provides a level adjustment device that adopts the following technical solution:

[0007] A level adjustment device, comprising

[0008] The base, mounted on top of the tripod;

[0009] A top plate, the upper surface of which is provided with a level body;

[0010] An adjusting screw is rotatably connected to the lower surface of the top plate and is threadedly connected to the base;

[0011] The adjusting knob is mounted on the circumferential outer wall of the top of the adjusting screw.

[0012] Optionally, a stabilizing rod is fixedly provided on the side wall of the top plate, and a stabilizing ring is fixedly provided on the side wall of the base, and the stabilizing rod abuts and slides against the inner wall of the stabilizing ring.

[0013] Optionally, a handle cover is provided on the stabilizer bar.

[0014] Optionally, a ring tooth groove is provided on the lower surface of the top plate;

[0015] The outer wall of the adjusting knob is slidably connected with an unlocking ring, and the upper surface of the unlocking ring is provided with ring teeth;

[0016] A lower ring plate is fixedly arranged at the bottom of the side wall of the adjusting knob, a sponge pad is fixedly arranged on the lower ring plate, an unlocking ring is fixedly arranged on the sponge pad, and when the sponge pad is in a natural state, the unlocking ring is meshed with the ring tooth groove.

[0017] Optionally, a middle ring plate is fixedly provided at the bottom of the unlocking ring side wall.

[0018] Optionally, when the distance between the middle ring plate and the top plate is large enough for a finger to pass through, the unlocking ring is separated from the ring tooth groove.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] When the level is observed to sink or the height of the level needs to be adjusted, the adjustment knob is turned to adjust the distance between the base and the top plate, thereby quickly adjusting the height of the level and reducing measurement errors;

[0021] The setting of the unlocking ring can press and engage the ring tooth groove through the sponge pad, thereby improving the distance stability between the base and the top plate;

[0022] The distance between the middle ring plate and the top plate is set so that when a finger needs to be put into the rotating unlocking ring, the unlocking ring can be naturally driven to move downward, thereby facilitating unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0024] Figure 2 It is a partial exploded view showing the adjustment knob.

[0025] In the figure, 1, base; 2, top plate; 21, ring groove; 3, adjusting screw; 31, adjusting knob; 311, lower ring plate; 4, stabilizing assembly; 41, stabilizing rod; 411, handlebar cover; 42, stabilizing ring; 5, unlocking assembly; 51, unlocking ring; 511, middle ring plate; 52, sponge pad. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-2 This application is described in further detail.

[0027] The embodiment of the present application discloses a level adjustment device.

[0028] refer to Figure 1 and Figure 2 The level adjustment device includes a base 1, a top plate 2 and an adjusting screw 3. The base 1 is installed on the top of the tripod bracket, and the upper surface of the top plate 2 is provided for the level body to be installed. The adjusting screw 3 is vertically arranged and rotatably connected to the middle of the lower surface of the top plate 2. The adjusting screw 3 is threadedly connected to the middle of the upper surface of the bottom plate and penetrates the bottom plate. An adjusting knob 31 is fixedly provided on the top of the circumferential side wall of the adjusting screw 3. A stabilizing component 4 is provided between the top plate 2 and the base 1 to limit the mutual rotation of the top plate 2 and the base 1. The adjusting knob 31 is provided with an unlocking component 5 to improve the position stability of the adjusting screw 3.

[0029] After the tripod is propped up on the ground, if settlement occurs during measurement or the height of the level instrument body needs to be adjusted, the adjustment screw 3 is rotated by adjusting the knob 31 to adjust the distance between the top plate 2 and the base 1. The mutual rotation of the base 1 and the top plate 2 is limited by the stabilizing component 4 to improve the accuracy of the level angle adjustment. The unlocking component 5 is used to improve the stability of the position of the base 1 and the top plate 2 after the position adjustment.

[0030] refer to Figure 2 The stabilizing assembly 4 includes a stabilizing rod 41 and a stabilizing ring 42. The stabilizing rod 41 is fixed on the side wall of the top plate 2 and is vertically arranged downward. The stabilizing ring 42 is fixed on the side wall of the base 1 at a position directly opposite to the stabilizing rod 41, and the stabilizing rod 41 passes through the stabilizing ring 42 and abuts and slides against the inner wall of the stabilizing ring 42. A handle cover 411 is sleeved on the stabilizing rod 41. The mutual rotation of the base 1 and the top plate 2 can be restricted by the sliding connection between the stabilizing rod 41 and the stabilizing ring 42, and at the same time, a space for hand holding can be provided, which improves the rationality of the structure and reduces the measurement error of the level body after adjustment.

[0031] refer to Figure 1 and Figure 2 The unlocking assembly 5 includes an unlocking ring 51 and a sponge pad 52. The unlocking ring 51 is sleeved on the circumferential outer wall of the adjusting knob 31 and slides vertically with the adjusting knob 31. A lower ring plate 311 is fixedly provided at the bottom of the side wall of the adjusting knob 31, and the sponge pad 52 is fixedly provided on the upper surface of the lower ring plate 311. The lower surface of the unlocking ring 51 is fixedly connected to the sponge pad 52. The upper surface of the unlocking ring 51 is a ring tooth, and a ring tooth groove 21 is provided on the lower surface of the top plate 2 facing the unlocking ring 51. When the sponge pad 52 is in a natural state, the unlocking ring 51 is meshed with the ring tooth groove 21. A middle ring plate 511 is fixedly provided at the bottom of the side wall of the unlocking ring 51. When the distance between the middle ring plate 511 and the top plate 2 is large enough for a finger to pass through, the unlocking ring 51 is separated from the ring tooth groove 21.

[0032] When adjusting the distance between the top plate 2 and the base 1, insert your fingers between the middle ring plate 511 and the top plate 2, and then drive the unlocking ring 51 to move down to a position separated from the ring tooth groove 21, and then pinch the unlocking ring 51 to drive the adjustment knob 31 to rotate for adjustment. After the adjustment is completed, release the unlocking ring 51, and the unlocking ring 51 will reset and mesh with the ring tooth groove 21, thereby improving the stability of the distance between the top plate 2 and the base 1 after the position adjustment.

[0033] The implementation principle of a level adjustment device in an embodiment of the present application is as follows: when the tripod sinks or the horizontal height of the level body needs to be adjusted, grab the handle cover 411, insert your fingers between the middle ring plate 511 and the top plate 2, and then rotate the unlocking ring 51. The unlocking ring 51 drives the adjusting knob 31 to rotate, and then drives the adjusting screw 3 to rotate, thereby adjusting the distance between the top plate 2 and the base 1, realizing the height adjustment function of the level and reducing the measurement error.

[0034] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A level adjustment device, characterized in that: include A base (1) mounted on the top of the tripod; A top plate (2), the upper surface of which is mounted a level body; An adjusting screw (3) is rotatably connected to the lower surface of the top plate (2) and is threadably connected to the base (1); The adjusting knob (31) is mounted on the circumferential outer wall of the top of the adjusting screw.

2. A level adjustment device according to claim 1, characterized in that: A stabilizing rod (41) is fixedly provided on the side wall of the top plate (2), and a stabilizing ring (42) is fixedly provided on the side wall of the base (1). The stabilizing rod (41) abuts against and slides against the inner wall of the stabilizing ring (42).

3. A level adjustment device according to claim 2, characterized in that: A handle cover (411) is sleeved on the stabilizing rod (41).

4. A level adjustment device according to claim 1, characterized in that: The lower surface of the top plate (2) is provided with an annular tooth groove (21); The outer circumferential wall of the adjusting knob (31) is slidably connected with an unlocking ring (51), and the upper surface of the unlocking ring (51) is provided with ring teeth; A lower ring plate (311) is fixedly arranged at the bottom of the side wall of the adjusting knob (31), a sponge pad (52) is fixedly arranged on the lower ring plate (311), an unlocking ring (51) is fixedly arranged on the sponge pad (52), and when the sponge pad (52) is in a natural state, the unlocking ring (51) is meshed with the ring tooth groove (21).

5. A level adjustment device according to claim 4, characterized in that: A middle ring plate (511) is fixedly arranged at the bottom of the side wall of the unlocking ring (51).

6. A level adjustment device according to claim 5, characterized in that: When the distance between the middle ring plate (511) and the top plate (2) is large enough for a finger to pass through, the unlocking ring (51) is separated from the ring tooth groove (21).

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