A leveling instrument single-person operation auxiliary device
By designing an auxiliary device for single-person operation of a level instrument, and using support and leveling components to keep the caliper reel horizontal, the problems of difficulty and error in single-person operation of the level instrument are solved, enabling single-person operation and high-precision measurement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YULI SPACE INFORMATION CONSULTING CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-23
AI Technical Summary
Leveling instruments require two people to operate; a single person cannot perform the measurement independently, and manual support of the calipers can easily cause wobbling, leading to measurement errors.
Design a single-person operation auxiliary device for a level instrument, including a support component, a leveling component, and a caliper reel. The leveling component keeps the caliper reel horizontal, ensuring that the caliper exit end is perpendicular to the ground and preventing the caliper strip from drooping non-vertically.
This technology enables single-person operation of the level instrument, reducing measurement errors and improving measurement accuracy.
Smart Images

Figure CN224398649U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of level instrument operation auxiliary equipment, and in particular relates to a level instrument single-person operation auxiliary device. Background Technology
[0002] A level is a measuring instrument used in construction to measure the difference in horizontal elevation between different locations. When using a level, two calipers need to be set above the two locations to be measured, and the level is placed between the two calipers. One person operates the level to measure the two calipers in turn, while another person supports the calipers used for measurement to keep them vertical. This method of level measurement requires two people; a single person cannot perform the measurement independently. In addition, manually supporting the calipers can cause them to wobble, leading to errors in the level measurement results.
[0003] To address these issues, we provide a single-person operation auxiliary device for leveling instruments. Utility Model Content
[0004] The purpose of this invention is to provide a single-person operation auxiliary device for a level instrument. A horizontal component is installed at the upper end of a set of support rods in the support assembly. A caliper reel is installed at the upper end of the horizontal component. The base plate at the lower end of the support assembly is placed on the ground to be measured. The caliper strip in the reel is pulled out, passing through the horizontal component and the base plate and extending towards the ground. The level instrument then observes and measures the caliper strip. The horizontal component keeps the reel horizontal, ensuring the caliper exit end of the reel is perpendicular to the ground. This prevents the reel from tilting, which could cause the caliper strip to droop and bend, thus avoiding errors when using the level instrument for measurement.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a single-person operation auxiliary device for a level instrument, including a support component, a horizontal component, and a caliper rewind reel. The support component includes a base plate, a set of support sleeves, and a set of support rods. The set of support sleeves is circumferentially arrayed and vertically fixed on the upper surface of the base plate. The set of support rods is vertically slidably telescopically sleeved in each of the support sleeves. The horizontal component is set on the upper end of the set of support rods, and the caliper rewind reel is installed on the upper surface of the horizontal component.
[0007] A further feature of this invention is that a hole is provided through the surface of the base plate, and the caliper strip wound in the caliper winding tray passes through the horizontal component and the hole on the base plate.
[0008] A further feature of this invention is that the horizontal component includes an outer hoop, a transverse rotating ring, and a longitudinal rotating disk. A set of rod end sleeves are fixedly arranged in a circumferential array on the outer sidewall of the outer hoop, and each rod end sleeve is fixedly sleeved on the top of each support rod. The two sides of the transverse rotating ring are horizontally rotatably installed inside the outer hoop, and the two sides of the longitudinal rotating disk are vertically rotatably installed inside the transverse rotating ring. A top plate is fixedly installed on the upper end of the longitudinal rotating disk, and a caliper winding reel is installed on the upper surface of the top plate.
[0009] A further feature of this invention is that a ruler plate support is fixedly installed at the upper end of the top plate. The ruler plate support is a U-shaped structure with the opening facing upwards. The caliper take-up reel is fixedly installed between the ruler plate supports. The strip outlet of the caliper take-up reel passes through the lower bottom plate of the ruler plate support and the plate surface of the top plate. A ruler strip passage is opened through the plate surface of the longitudinal turntable. The caliper strip of the caliper take-up reel passes through the ruler strip passage and extends downwards.
[0010] A further feature of this invention is that the direction of the caliper strip surface in the caliper reel is parallel to the transverse rotation axis of the transverse rotating ring.
[0011] A further feature of this invention is that a roller seat frame is fixedly provided on the upper end face of the longitudinal turntable, and two ruler strip rollers are rotatably installed inside the roller seat frame. The roller surfaces of the two ruler strip rollers are respectively attached to both sides of the caliper strip surface ejected from the caliper take-up reel.
[0012] A further feature of this invention is that a ball bearing seat is fixedly sleeved on the end face of the caliper strip ejected from the caliper rewind reel, a hemispherical ball groove is formed on the lower end face of the ball bearing seat, a ball sleeve is threaded onto the outer side of the lower end of the ball bearing seat, a ball is tumblingly installed in the ball groove, and the lower end face of the ball penetrates the lower end face of the ball sleeve.
[0013] This utility model has the following beneficial effects:
[0014] 1. This utility model involves setting a horizontal component at the upper end of a set of support rods in a support assembly, setting a caliper rewinding reel at the upper end of the horizontal component, placing the base plate at the lower end of the support assembly on the ground to be measured, pulling out the caliper strip in the caliper rewinding reel, and making the caliper strip pass through the horizontal component and the base plate and extend towards the ground, and observing and measuring the caliper strip with a level instrument.
[0015] 2. This utility model uses a horizontal component to keep the caliper winding reel horizontal, ensuring that the caliper exit end of the caliper winding reel is perpendicular to the ground. This prevents the caliper winding reel from tilting, which could cause the caliper strip to droop and bend, thus avoiding errors when using a level instrument for measurement. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A schematic diagram of a single-person operation auxiliary device for a level instrument;
[0018] Figure 2 This is a structural diagram of the horizontal component;
[0019] Figure 3 An exploded view of the horizontal assembly and the caliper reel;
[0020] Figure 4 This is a schematic diagram of the structure of the roller seat frame and the strip roller;
[0021] Figure 5 This is an exploded view of the ball bearing seat and the ball bearing.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1-Support assembly, 101-Base plate, 101a-Panel hole, 102-Support sleeve, 103-Support rod, 2-Horizontal assembly, 201-Outer hoop, 201a-Rod end sleeve, 202-Horizontal rotating ring, 203-Longitudinal rotating plate, 203a-Top plate, 203a-1-Scale plate bracket, 203b-Scale strip opening, 203c-Roller seat frame, 203c-1-Scale strip with roller, 3-Caliper winding reel, 301-Ball bearing seat, 301a-Ball groove, 301a-1-Ball, 301b-Ball bearing sleeve. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1
[0025] Please see Figures 1 to 4This utility model is a single-person operation auxiliary device for a level instrument, including a support component 1, a horizontal component 2, and a caliper reel 3. The support component 1 includes a base plate 101, a set of support sleeves 102, and a set of support rods 103. A horizontal component 2 is set on the upper end of the set of support rods 103 in the support component 1, and a caliper reel 3 is set on the upper end of the horizontal component 2. The base plate 101 at the lower end of the support component 1 is placed on the ground to be measured. The caliper strip in the caliper reel 3 is pulled out and passes through the horizontal component 2 and the base plate 101 and extends towards the ground. The caliper strip is observed and measured by the level instrument. The horizontal component 2 keeps the caliper reel 3 horizontal, and the caliper exit end of the caliper reel 3 is perpendicular to the ground. This prevents the caliper reel 3 from tilting and causing the caliper strip to droop and bend, thereby avoiding errors when using the level instrument for measurement.
[0026] Specifically, a set of support sleeves 102 are vertically fixed in a circumferential array on the upper surface of the base plate 101, a set of support rods 103 are vertically slidably telescopically sleeved in each support sleeve 102, a horizontal component 2 is set at the upper end of a set of support rods 103, and a caliper rewinding reel 3 is installed on the upper surface of the horizontal component 2.
[0027] Furthermore, a hole 101a is provided through the surface of the base plate 101, and the caliper strip wound in the caliper winding plate 3 passes through the horizontal component 2 and the hole 101a on the base plate 101.
[0028] Furthermore, the horizontal component 2 includes an outer hoop 201, a transverse rotating ring 202, and a longitudinal rotating disk 203. A set of rod end sleeves 201a are fixedly arranged in a circumferential array on the outer sidewall of the outer hoop 201. Each rod end sleeve 201a is fixedly sleeved on the top of each support rod 103. The two sides of the transverse rotating ring 202 are horizontally rotatably installed in the outer hoop 201. The two sides of the longitudinal rotating disk 203 are vertically rotatably installed in the transverse rotating ring 202. A top plate 203a is fixedly installed on the upper end of the longitudinal rotating disk 203. The caliper winding disk 3 is installed on the upper end surface of the top plate 203a. The transverse rotating ring 202 and the longitudinal rotating disk 203 keep the longitudinal rotating disk 203 horizontal under the action of gravity, so that the caliper outlet end of the caliper winding disk 3 is perpendicular to the ground.
[0029] Furthermore, a ruler plate support 203a-1 is fixedly installed at the upper end of the top plate 203a. The ruler plate support 203a-1 is a U-shaped structure with the opening facing upward. The caliper take-up reel 3 is fixedly installed between the ruler plate supports 203a-1. The strip outlet of the caliper take-up reel 3 passes through the lower bottom plate of the ruler plate support 203a-1 and the plate surface of the top plate 203a. A ruler strip passage 203b is opened through the plate surface of the longitudinal turntable 203. The caliper strip of the caliper take-up reel 3 passes through the ruler strip passage 203b and extends downward.
[0030] Furthermore, the caliper strip surface in the caliper reel 3 is parallel to the transverse rotation axis of the transverse rotating ring 202.
[0031] Furthermore, a roller seat frame 203c is fixedly installed on the upper end face of the longitudinal turntable 203. Two ruler strip rollers 203c-1 are rotatably installed inside the roller seat frame 203c. The roller surfaces of the two ruler strip rollers 203c-1 are respectively attached to both sides of the caliper strip surface ejected from the caliper take-up reel 3. The caliper strip contacts the roller surface of the ruler strip roller 203c-1, thereby avoiding hard contact between the caliper strip and the inner wall of the ruler strip opening 203b, which would cause wear on the caliper strip surface.
[0032] The operation process in this embodiment is as follows:
[0033] Place the base plate 101 on the ground to be measured, pull out the caliper strip from the caliper reel 3, and pass it through the strip opening 203b and the plate hole 101a in sequence, so that the caliper strip is perpendicular to the ground. Under the action of gravity, the horizontal rotating ring 202 and the vertical rotating plate 203 keep the vertical rotating plate 203 horizontal, so that the caliper exit end of the caliper reel 3 is perpendicular to the ground. Align the level instrument with the caliper strip for observation, so that a single person can use the level instrument to perform measurement operations. Example 2
[0034] Please see Figures 1 to 5 Based on Example 1, a ball bearing seat 301 is fixedly sleeved at the lower end of the caliper strip in the caliper reel 3. A ball bearing 301a-1 is rolled in the hemispherical ball bearing groove 301a at the lower end of the ball bearing seat 301. The caliper strip is tightened by the gravity of the ball bearing seat 301, and the ball bearing 301a-1 rolls and rubs against the ground, so that the lower end of the caliper strip rolls with the slope of the ground, thereby making the caliper strip perpendicular to the ground.
[0035] Specifically, a ball bearing seat 301 is fixedly sleeved on the end face of the caliper strip ejected from the caliper reel 3. A hemispherical ball groove 301a is opened on the lower end face of the ball bearing seat 301. A ball sleeve 301b is threadedly sleeved on the outer side of the lower end of the ball bearing seat 301. A ball 301a-1 is rolled in the ball groove 301a. The lower end face of the ball 301a-1 passes through the lower end face of the ball sleeve 301b.
[0036] The operation process in this embodiment is as follows:
[0037] Pull the caliper strip out of the caliper reel 3 and make the ball bearing 301a-1 roll into contact with the ground. The ball bearing 301a-1 rolls with the slope of the ground, straightening the lower end of the caliper strip and making the caliper strip perpendicular to the ground, so as to avoid the lower end of the caliper strip dragging on the ground and not being perpendicular to the ground.
[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
Claims
1. A single-person operation auxiliary device for a level instrument, comprising a support assembly (1), a leveling assembly (2), and a caliper winding reel (3), characterized in that: The support assembly (1) includes a base plate (101), a set of support sleeves (102) and a set of support rods (103). The set of support sleeves (102) are circumferentially arrayed and vertically fixed on the upper surface of the base plate (101). The set of support rods (103) are vertically slidably telescopically sleeved in each support sleeve (102). The horizontal assembly (2) is set at the upper end of the set of support rods (103). The caliper rewind reel (3) is installed on the upper surface of the horizontal assembly (2).
2. The level instrument single-person operation auxiliary device according to claim 1, characterized in that: The base plate (101) has a through hole (101a) on its surface, and the caliper strip wound in the caliper winding plate (3) passes through the horizontal component (2) and the through hole (101a) on the base plate (101).
3. The level instrument single-person operation auxiliary device according to claim 2, characterized in that: The horizontal component (2) includes an outer hoop (201), a transverse rotating ring (202), and a longitudinal rotating disk (203). A set of rod end sleeves (201a) are fixedly arranged in a circumferential array on the outer sidewall of the outer hoop (201). Each rod end sleeve (201a) is fixedly sleeved on the top of each support rod (103). The two sides of the transverse rotating ring (202) are horizontally rotatably installed in the outer hoop (201). The two sides of the longitudinal rotating disk (203) are vertically rotatably installed in the transverse rotating ring (202). A top plate (203a) is fixedly installed on the upper end of the longitudinal rotating disk (203). The caliper winding reel (3) is set on the upper end face of the top plate (203a).
4. The level instrument single-person operation auxiliary device according to claim 3, characterized in that: The top plate (203a) is fixedly provided with a ruler plate bracket (203a-1). The ruler plate bracket (203a-1) is a U-shaped structure with the opening facing upward. The caliper take-up reel (3) is fixedly installed between the ruler plate brackets (203a-1). The strip outlet of the caliper take-up reel (3) passes through the bottom plate of the ruler plate bracket (203a-1) and the plate surface of the top plate (203a). A ruler strip through-hole (203b) is provided through the plate surface of the longitudinal turntable (203). The caliper strip of the caliper take-up reel (3) passes through the ruler strip through-hole (203b) and extends downward.
5. The level instrument single-person operation auxiliary device according to claim 4, characterized in that: The caliper strip surface in the caliper reel (3) is parallel to the transverse rotation axis of the transverse rotating ring (202).
6. The level instrument single-person operation auxiliary device according to claim 5, characterized in that: A roller seat frame (203c) is fixedly provided on the upper end face of the longitudinal turntable (203). Two ruler strip rollers (203c-1) are rotatably installed inside the roller seat frame (203c). The roller surfaces of the two ruler strip rollers (203c-1) are respectively attached to both sides of the caliper strip surface ejected from the caliper take-up reel (3).
7. The level instrument single-person operation auxiliary device according to claim 1, characterized in that: The end face of the caliper strip ejected by the caliper reel (3) is fixedly sleeved with a ball bearing seat (301). The lower end face of the ball bearing seat (301) is provided with a hemispherical ball groove (301a). A ball sleeve (301b) is threaded onto the outer side of the lower end of the ball bearing seat (301). A ball (301a-1) is rolled in the ball groove (301a). The lower end face of the ball (301a-1) penetrates the lower end face of the ball sleeve (301b).