Simple device for hanging steel ruler in contact survey

Abstract

The utility model discloses a simple device for hanging a steel ruler in contact survey, which comprises a device main body, the device main body consists of a left side plate and a right side plate, a reserved hole is arranged at the middle position of the left side plate close to the upper end, and the lower section of the right side plate is a parallel section parallel to the left side plate. The upper portion of the parallel section is connected with an inclined section inclining by a certain angle in the direction away from the left side plate, the left side plate is fixedly connected with the side edge of the parallel section, and a gap allowing a steel ruler to pass through is reserved between the left side plate and the side edge of the parallel section. The side face of the left side plate opposite to the inclined sizing block is provided with an anti-skid gasket contact steel ruler. By pulling the steel ruler downwards, the steel ruler can be fixed to the device body through friction force among the wedge shim plate, the steel ruler and the device body, on the contrary, the steel ruler can be detached, installation is easy, the device is small and light, working efficiency is improved, manpower and material resources are saved, and the device has extremely wide popularization value.

Description

Technical Field

[0001] The utility model relates to the technical field of subway construction, in particular to a simple device for hanging a steel ruler in connection measurement. Background Art

[0002] With the rapid development of the national economy, the infrastructure construction in major cities in China has developed rapidly, especially various underground tunnel projects such as urban rail transit and underground pipe galleries have continued to emerge. In order to establish an underground tunnel project control network and ensure that its accuracy meets the needs of on-site construction, the ground control network can be transmitted to the underground tunnel control network through the construction shaft, station end shaft, etc. to guide on-site construction. Among them, the elevation control network generally uses the method of hanging a steel ruler to transmit the elevation to the underground. In the process of hanging the steel ruler, the steel ruler is fixed to the connecting measurement bracket with tape, etc., which brings a lot of unnecessary trouble to the subsequent measurement and disassembly. Utility Model Content

[0003] The utility model aims to provide a simple device for hanging a steel ruler in contact measurement, so as to solve the technical problems that when the steel ruler is hung in the process of height transmission of contact measurement of subway and underground engineering, the steel ruler is fixed to the bracket by adhesive tape, the ruler surface is not easy to see during measurement, and the disassembly process is troublesome and laborious.

[0004] The utility model adopts the following technical scheme to solve the technical problem: a simple device for hanging a steel ruler in contact measurement, including a device body, the device body consists of a left side plate and a right side plate, the left side plate is provided with a reserved hole in the middle position near the upper end, the lower section of the right side plate is a parallel section parallel to the left side plate, the upper part of the parallel section is connected to an inclined section inclined at a certain angle toward the direction away from the left side plate, the left side plate and the parallel section are fixedly connected to the side edge and a gap is left between the two for the steel ruler to pass through, an inclined washer is provided between the left side plate and the inclined section, the inclined washer has the same inclination angle as the inclined section, and an anti-slip pad is provided on the side opposite to the inclined washer to contact the steel ruler.

[0005] Furthermore, the anti-skid pad is a self-adhesive anti-skid pad.

[0006] Furthermore, a universal hook is connected to the reserved hole.

[0007] Furthermore, the left side plate and the right side plate are made of two flat steels, and the two are connected by welding.

[0008] Compared with conventional technologies, the beneficial effects of the utility model are as follows:

[0009] 1. The simple device of the utility model can fix the steel ruler to the device body by pulling the steel ruler downwards and utilizing the friction between the inclined pad iron, the steel ruler and the device body. Otherwise, the steel ruler can be disassembled. The device is simple to install, compact and light, improves work efficiency, saves manpower and material resources, and has extremely wide promotion value.

[0010] 2. It is assembled and made of flat steel, inclined pads, universal hooks, and self-adhesive non-slip pads, which is convenient to obtain materials and simple to make;

[0011] 3. The universal hook can be used to adjust the direction of the ruler surface when observing the ruler reading during level measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is the front view of the utility model;

[0014] Figure 3 It is a left view of the utility model;

[0015] Figure 4 It is a top view of the utility model.

[0016] In the figure: 1. Device body; 11. First flat iron; 12. Second flat iron; 13. Reserved hole; 2. Oblique washer; 3. Self-adhesive anti-slip pad; 4. Universal hook; 5. Steel ruler. DETAILED DESCRIPTION

[0017] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of a simple device for hanging a steel ruler in contact measurement of the utility model in conjunction with the accompanying drawings.

[0018] like Figure 1~Figure 4 As shown, a simple device for hanging a steel ruler in contact measurement of the present embodiment comprises a device body 1, an inclined washer 2, a self-adhesive anti-skid pad 3 and a universal hook 4. The inclined washer 2, the universal hook 4 and the self-adhesive anti-skid pad 3 can be purchased as finished products. The device body 1 is welded by a first flat steel 11 with a width of 120 mm, a thickness of 5 mm and a second flat steel 12 with a width of 100 mm, a thickness of 5 mm and a width of 50 mm. A φ8mm circular hole is punched in the center of 20 mm on the upper end of the first flat steel 11 as a reserved hole 13 for installing the hook. The second flat steel 12 is folded at an angle of 8° at 30 mm from one end. A 30mm section of the bent second flat steel 12 is placed to align with the lower end of the first flat steel 11, and a 2mm gap is left between the wide surfaces of the two flat steels. The two flat steels are welded together on one side so that the two flat steels form a "V" shape when viewed from the side and a flat "U" shape when viewed from the top.

[0019] The inclined side of the inclined washer 2 is in surface contact with the inner side of the second flat steel 12, and the straight side of the inclined washer 2 is parallel to the inner side of the first flat steel 11, and self-adhesive anti-slip pads 3 are affixed to each of them to prevent the inclined washer 2 from damaging the steel ruler 5 when it is squeezed with the device body 1.

[0020] When in use, Inoue first passes the steel ruler 5 into the flat "U"-shaped gap of the device body 1, and then installs the inclined washer 2 on the "V"-shaped notch of the device body 1, wherein the side with the self-adhesive anti-slip gasket 3 faces the steel ruler 5, and finally pulls down the steel ruler 5. Due to the friction between the inclined washer 2, the steel ruler 5, and the device body 1, the steel ruler 5 and the device body 1 form a whole, and the steel ruler 5 is not easy to fall off due to the friction when lowered. Finally, the device body 1 is hung on the connecting measuring bracket through the universal hook 4, and the universal hook 4 can adjust the direction of the scale face of the steel ruler 5.

[0021] Turn the device body 1 upside down underground, and fix the device body 1 to the steel ruler 5 in the same way, and then hang the counterweight (to prevent the steel ruler 5 from swinging during measurement) on the reserved hole 13 placed under the device body 1. In this way, the steel ruler 5 is hung, and the direction of the steel ruler 5 is adjusted. When the steel ruler 5 is stable, use an electronic level to read the surface reading of the steel ruler 5.

[0022] When the steel ruler 5 is removed after the contact measurement is completed, the counterweight of the steel ruler 5 is first lowered and removed, and the steel ruler 5 is pulled upward along the device body 1. Due to the friction between the inclined pad iron 2, the steel ruler 5, and the device body 1, the inclined pad iron 2 is loosened along the pulling of the steel ruler 5, and the steel ruler 5 is removed smoothly. In the same way, the other end of the wellhead steel ruler 5 can also be removed.

[0023] The simple device of this embodiment is simple to make, easy to obtain materials, small and light, easy to install, and has high working efficiency. It is convenient to read the steel ruler 5 when the steel ruler 5 is hung during the height measurement transmission process, and it is simple and convenient to disassemble the steel ruler 5, and has extremely wide promotion value.

[0024] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A simple device for hanging a steel ruler in contact measurement, characterized in that: The device body (1) comprises a left side plate and a right side plate, wherein a reserved hole (13) is provided at a middle position near the upper end of the left side plate, a lower section of the right side plate is a parallel section parallel to the left side plate, an upper portion of the parallel section is connected to an inclined section inclined at a certain angle in a direction away from the left side plate, the left side plate and the parallel section are fixedly connected at the side edge and a gap is left between the two for a steel ruler (5) to pass through, an inclined washer (2) is provided between the left side plate and the inclined section, the inclined washer (2) and the inclined section have the same inclination angle, and an anti-slip pad is provided on the side of the left side plate opposite to the inclined washer to contact the steel ruler (5).

2. The simple device for hanging a steel ruler in contact measurement according to claim 1 is characterized in that: The anti-skid pad adopts self-adhesive anti-skid pad (3).

3. The simple device for hanging a steel ruler in contact measurement according to claim 1 is characterized in that: The reserved hole (13) is connected to the universal hook (4).

4. The simple device for hanging a steel ruler in contact measurement according to any one of claims 1 to 3, characterized in that: The left side plate and the right side plate are made of two flat steels, and the two are connected by welding.

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