Leveling rod pad

Abstract

The utility model belongs to the technical field of leveling rod pads, and particularly relates to a leveling rod pad which comprises a rod pad base, supporting legs are arranged at the triangular positions of the bottom end of the rod pad base, connecting blocks are symmetrically arranged on one side of the rod pad base, a pull rod is installed between the two connecting blocks, and a protruding column is installed in the middle of the top end of the rod pad base. An annular inner clamping groove is formed in the bottom of the outer wall of the protruding column, a sleeve is installed in the annular inner clamping groove, L-shaped supporting plates are welded to the two sides of the outer wall of the sleeve, an H-shaped support is installed on one sides of the two L-shaped supporting plates, a guiding sliding hole is formed in the middle of the bottom end of the inner wall of the H-shaped support, and limiting springs are installed at the tops of the two sides of the inner wall of the H-shaped support. Through cooperative use of the convex column, the sleeve, the two L-shaped supporting plates, the H-shaped bracket, the two limiting springs and the two limiting clamping plates, the leveling rod can be supported and clamped, so that the leveling rod can be placed more stably, and subsequent rotation and use of the leveling rod are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of leveling staff pads, and particularly relates to a leveling staff pad. Background Technique

[0002] A leveling staff is a scale used for leveling measurement, which is made of high-quality wood, fiberglass, aluminum alloy and other materials. The commonly used leveling staffs are tower staffs, folding staffs and double-sided leveling staffs. During practical use, a leveling staff needs to be supported by a staff pad. The staff pad is made of a triangular cast iron block, with a protruding hemisphere in the center of the upper part and three sharp corners at the bottom to be stepped into the soil to make it stable. When in use, the staff pad is tamped down, and the leveling staff is placed on the top of the protruding hemisphere. When the leveling staff rotates, the elevation of the bottom of the staff will not change.

[0003] However, since the vertex of the hemispherical shape is an arc surface, when the leveling staff rotates, the bottom of the leveling staff is likely to slide off the arc surface or the leveling staff is skewed, resulting in that the surveyor often needs to recalibrate the leveling staff during measurement, which is rather inconvenient. Based on this, the utility model provides a leveling staff pad. Content of the Utility Model

[0004] In order to solve the above problems existing in the prior art, the utility model provides a leveling staff pad, which can make the leveling staff placed more stably and is convenient for subsequent rotation and use of the leveling staff.

[0005] To achieve the above object, the utility model provides the following technical solution: a leveling staff pad, including a pad base, legs are arranged at the triangular positions at the bottom end of the pad base, connecting blocks are symmetrically arranged on one side of the pad base, a pull rod is installed between the two connecting blocks, a convex column is installed in the middle of the top end of the pad base, an annular inner clamping groove is opened at the bottom of the outer wall of the convex column, a sleeve is installed inside the annular inner clamping groove, L-shaped support plates are welded on both sides of the outer wall of the sleeve, an H-shaped bracket is installed on one side of the two L-shaped support plates, a guiding sliding hole is opened in the middle of the bottom end of the inner wall of the H-shaped bracket, limiting springs are installed at the tops of both sides of the inner wall of the H-shaped bracket, a limiting clamping plate is installed at one end of the limiting spring, and a guiding sliding plate is installed below the limiting clamping plate.

[0006] As a preferred technical solution of the leveling staff pad of the utility model, a fixing screw hole is opened in the middle of the top end of the pad base, a fixing screw column is welded in the middle of the bottom end of the convex column, the fixing screw column is located inside the fixing screw hole, and the fixing screw column and the fixing screw hole are connected by threads.

[0007] As a preferred technical solution of the leveling staff pad of the utility model, the top of the convex column is hemispherical, and the top of the convex column and the bottom end of the inner wall of the H-shaped bracket are in a horizontal state.

[0008] As a preferred technical solution of the leveling staff pad of the present utility model, the inner diameter of the annular inner card slot is the same as the inner diameter of the sleeve, and the inner wall depth of the annular inner card slot is the same as the height of the sleeve.

[0009] As a preferred technical solution of the leveling staff pad of the present utility model, a first connection hole is provided at one side of the L-shaped support plate, positioning card slots are symmetrically provided at the bottom end of one end of the H-shaped bracket, second connection holes are provided in the middle of both sides of the inner wall of the positioning card slot, and a fixing bolt penetrates through the inside of the first connection hole and the inside of the second connection hole.

[0010] As a preferred technical solution of the leveling staff pad of the present utility model, the longitudinal section size of the L-shaped support plate is the same as the longitudinal section size of the positioning card slot, and the inner diameter of the first connection hole is the same as the inner diameter of the second connection hole.

[0011] As a preferred technical solution of the leveling staff pad of the present utility model, a convex block is provided in the middle of the bottom end of the limit clamping plate, the convex block is located inside the guiding sliding hole, a fixing screw groove is provided in the middle of the bottom end of the convex block, a fixing clamping hole is provided in the middle of the bottom end of the guiding sliding plate, a fixing screw rod is installed inside the fixing clamping hole, and one end of the fixing screw rod is located inside the fixing screw groove.

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

[0013] When the present utility model is in use, through the combined use of the convex column, the sleeve, two L-shaped support plates, the H-shaped bracket, two limit springs and two limit clamping plates, the leveling staff can be supported and clamped, so that the leveling staff can be placed more stably, facilitating the subsequent rotation and use of the leveling staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 is the installation explosion diagram of the convex column of the present utility model;

[0017] Figure 3 is the installation explosion diagram of the H-shaped bracket of the present utility model;

[0018] Figure 4 is the installation explosion diagram of the limit clamping plate of the present utility model;

[0019] Figure 5 is the structural schematic diagram of the guiding sliding plate of the present utility model.

[0020] In the figure: 1, leveling staff base; 2, leg; 3, connecting block; 4, pull rod; 5, convex column; 6, annular inner card slot; 7, sleeve; 8, L-shaped support plate; 9, H-shaped bracket; 10, guiding sliding hole; 11, limiting spring; 12, limiting clamping plate; 13, guiding sliding plate; 14, fixing screw hole; 15, fixing stud; 16, first connecting hole; 17, positioning card slot; 18, second connecting hole; 19, fixing bolt; 20, fixing screw groove; 21, fixing card hole; 22, fixing screw rod. Specific implementation manner

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0022] Please refer to Figures 1-5 , the present invention provides the following technical solutions: A leveling staff pad includes a leveling staff base 1. Legs 2 are provided at the triangular positions at the bottom end of the leveling staff base 1. Connecting blocks 3 are symmetrically arranged on one side of the leveling staff base 1. A pull rod 4 is installed between the two connecting blocks 3. A fixing screw hole 14 is opened in the middle of the top end of the leveling staff base 1. A convex column 5 is installed near the fixing screw hole 14 in the middle of the top end of the leveling staff base 1. A fixing stud 15 is welded to the middle of the bottom end of the convex column 5. The fixing stud 15 is located inside the fixing screw hole 14. The fixing stud 15 and the fixing screw hole 14 are connected by threads, which is convenient for the installation and use of the convex column 5. The top of the convex column 5 is hemispherical. An annular inner card slot 6 is opened at the bottom of the outer wall of the convex column 5. A sleeve 7 is installed inside the annular inner card slot 6. The inner diameter of the annular inner card slot 6 is the same as the inner diameter of the sleeve 7. The depth of the inner wall of the annular inner card slot 6 is the same as the height of the sleeve 7, which is convenient for the installation and use of the sleeve 7;

[0023] On both sides of the outer wall of the sleeve 7, L-shaped support plates 8 are welded. One side of the L-shaped support plate 8 is provided with a first connection hole 16. On one side of the two L-shaped support plates 8, there is an H-shaped bracket 9. At the bottom of one end of the H-shaped bracket 9, positioning card slots 17 are symmetrically provided. The longitudinal section size of the L-shaped support plate 8 is the same as that of the positioning card slot 17. In the middle of both sides of the inner wall of the positioning card slot 17, second connection holes 18 are provided. The inner diameter of the first connection hole 16 is the same as that of the second connection hole 18. A fixing bolt 19 penetrates through the inside of the first connection hole 16 and the inside of the second connection hole 18, which is convenient for the installation and use of the H-shaped bracket 9. The top of the convex column 5 and the bottom end of the inner wall of the H-shaped bracket 9 are in a horizontal state. In the middle of the bottom end of the inner wall of the H-shaped bracket 9, a guiding sliding hole 10 is provided. At the top of both sides of the inner wall of the H-shaped bracket 9, limiting springs 11 are installed. One end of the limiting spring 11 is provided with a limiting clamping plate 12. In the middle of the bottom end of the limiting clamping plate 12, a convex block is provided. The convex block is located inside the guiding sliding hole 10. In the middle of the bottom end of the convex block, a fixing screw groove 20 is provided. Below the limiting clamping plate 12, a guiding sliding plate 13 is installed. In the middle of the bottom end of the guiding sliding plate 13, a fixing clamping hole 21 is provided. Inside the fixing clamping hole 21, a fixing screw 22 is installed. One end of the fixing screw 22 is located inside the fixing screw groove 20, which is convenient for the connection between the guiding sliding plate 13 and the limiting clamping plate 12.

[0024] The working principle and usage process of the present utility model: After moving the leveling pad base 1 to the usage location and firmly gripping the ground with the three legs 2 of the leveling pad base 1, the user places the leveling staff on the convex column 5. Then, the user pulls the two limiting clamping plates 12 so that one side of the leveling staff is located between the two limiting clamping plates 12. Through the combined use of the convex column 5, the H-shaped bracket 9, the two groups of limiting springs 11, and the limiting clamping plates 12, the leveling staff can be supported and clamped, which is convenient for the stable placement of the leveling staff and also convenient for the subsequent rotation use of the leveling staff.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A leveling staff footplate, comprising a footplate base (1), characterized in that: At the triangular bottom ends of the leveling pad base (1), legs (2) are provided. On one side of the leveling pad base (1), connection blocks (3) are symmetrically arranged. A pull rod (4) is installed between the two connection blocks (3). In the middle of the top end of the leveling pad base (1), a convex column (5) is installed. At the bottom of the outer wall of the convex column (5), an annular inner card slot (6) is opened. Inside the annular inner card slot (6), a sleeve (7) is installed. On both sides of the outer wall of the sleeve (7), L-shaped support plates (8) are welded. On one side of the two L-shaped support plates (8), an H-shaped bracket (9) is installed. In the middle of the bottom end of the inner wall of the H-shaped bracket (9), a guiding slide hole (10) is opened. At the top of both sides of the inner wall of the H-shaped bracket (9), limiting springs (11) are installed. At one end of the limiting spring (11), a limiting clamping plate (12) is installed. Below the limiting clamping plate (12), a guiding slide plate (13) is installed.

2. The leveling staff footplate according to claim 1, wherein: In the middle of the top end of the leveling pad base (1), a fixing screw hole (14) is opened. At the middle of the bottom end of the convex column (5), a fixing screw post (15) is welded. The fixing screw post (15) is located inside the fixing screw hole (14). The fixing screw post (15) and the fixing screw hole (14) are connected by threads.

3. A leveling staff footplate according to claim 1, characterized in that: The top of the convex column (5) is hemispherical. The top of the convex column (5) and the bottom end of the inner wall of the H-shaped bracket (9) are in a horizontal state.

4. A leveling staff footplate according to claim 1, characterized in that: The inner diameter of the annular inner card slot (6) is the same as the inner diameter of the sleeve (7). The depth of the inner wall of the annular inner card slot (6) is the same as the height of the sleeve (7).

5. A leveling staff footplate according to claim 1, characterized in that: On one side edge of the L-shaped support plate (8), a first connection hole (16) is opened. At the bottom of one end of the H-shaped bracket (9), positioning card slots (17) are symmetrically opened. In the middle of both sides of the inner wall of the positioning card slot (17), second connection holes (18) are opened. A fixing bolt (19) passes through the inside of the first connection hole (16) and the inside of the second connection hole (18).

6. The leveling staff shoe according to claim 5, characterized in that: The longitudinal section size of the L-shaped support plate (8) is the same as the longitudinal section size of the positioning card slot (17). The inner diameter of the first connection hole (16) is the same as the inner diameter of the second connection hole (18).

7. A leveling staff footplate according to claim 1, characterized in that: At the middle of the bottom end of the limiting clamping plate (12), a convex block is provided. The convex block is located inside the guiding slide hole (10). At the middle of the bottom end of the convex block, a fixing screw groove (20) is opened. At the middle of the bottom end of the guiding slide plate (13), a fixing card hole (21) is opened. Inside the fixing card hole (21), a fixing screw rod (22) is installed. One end of the fixing screw rod (22) is located inside the fixing screw groove (20).

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