Observation point device

Abstract

The utility model relates to an observation point device which comprises an L-shaped observation nail and a protection box, an L-shaped groove is formed in the front end face of the protection box, an L-shaped metal reinforcing ring is arranged in the L-shaped groove, the observation nail comprises a transverse rod, a vertical rod and a mushroom head, the transverse rod and the vertical rod are connected with each other, the mushroom head is arranged at the top of the vertical rod, the tail end of the transverse rod is horizontally and rotatably connected into the L-shaped metal reinforcing ring, and a protection cover is hinged to the outer side of the protection box. When the observation nail is installed, the protection box is embedded in a wall body, when the observation nail does not need to be used, the observation nail is rotated into the L-shaped metal reinforcing ring, so that the transverse rod and the vertical rod of the observation nail are parallel to the wall body, the size of the protection box is greatly reduced, and the protection box is embedded in the wall body, so that the situation that external decoration is easy to bump is avoided; when in use, the observation nail is rotated out, so that the transverse rod is vertical to a wall body; in addition, the thickness of the protection box is small, a deep hole does not need to be drilled in the wall body when the protection box is installed in an embedded mode, the installation difficulty is reduced, the wall body structure cannot be damaged, and the stability of the structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to an observation point device. Background Art

[0002] With the continuous development of infrastructure construction such as buildings, bridges, and roads, the demand for observation points is also growing. Observation points, also known as observation nails or observation marks, are usually used to monitor key parameters such as deformation and displacement of structures to ensure the safe and stable operation of the structures.

[0003] At present, the observation points widely used in the market are mainly L-shaped observation nails, such as Figure 3 As shown; and card type observation points, such as Figure 4 As shown in the figure. The L-shaped observation nail is fixed on the target point by punching. Although it is firmly installed, it is easily deformed by external force collision due to its exposure to the external environment, which affects the accuracy of observation. In addition, it may also be corroded if exposed to the outside world for a long time, reducing its service life.

[0004] On the other hand, card-type observation points need to be pasted on the target point. Although this method is easy to install, it also has the problem of being easily oxidized when exposed to the outside, resulting in blurred handwriting. As time goes by, the card may also fall off due to aging, wind and rain, etc., and lose its observation function.

[0005] In order to solve the above problems, some technicians have proposed an observation point device with a protection box. However, this device still has some shortcomings in practical applications; for example, since the L-shaped observation nail has a horizontal rod vertically set on the wall surface, the size of the protection box is large, and the exterior is easy to bump, which poses a safety hazard. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an observation point device to overcome the deficiencies in the above-mentioned prior art.

[0007] The utility model solves the above-mentioned technical problems through the following technical solutions: an observation point device, comprising an L-shaped observation nail and a protection box; an L-shaped groove is arranged on the front end surface of the protection box, an L-shaped metal reinforcement ring is arranged in the L-shaped groove, the observation nail comprises a transverse rod and a vertical rod connected to each other and a mushroom head arranged on the top of the vertical rod, the end of the transverse rod is horizontally rotatably connected to the L-shaped metal reinforcement ring, and a protective cover is hingedly arranged on the outer side of the protection box.

[0008] The beneficial effects of the utility model are as follows: the protection box is embedded in the wall during installation, and when the observation nail is not needed, the observation nail is rotated into the L-shaped metal reinforcement ring, so that the horizontal rod and the vertical rod of the observation nail are parallel to the wall, which greatly reduces the size of the protection box, and the protection box is embedded in the wall to avoid easy bumps on the exterior; when in use, the observation nail is rotated out to make the horizontal rod perpendicular to the wall; in addition, the thickness of the protection box is relatively thin, and there is no need to drill deep holes in the wall during embedded installation, which reduces the difficulty of installation, does not cause damage to the wall structure, and improves the stability of the structure.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, a vertically arranged rotating shaft is provided at the end of the transverse rod, and an axis hole is correspondingly provided on the inner wall of the L-shaped metal reinforcement ring, and the rotating shaft is rotatably connected in the axis hole.

[0011] Furthermore, horizontal bubbles are arranged in both the transverse rod and the vertical rod.

[0012] Furthermore, a notch is provided on the front end surface of the protection box away from the hinged connection with the protection cover.

[0013] Furthermore, a magnet is disposed on the front end surface of the protection box, and the material of the protection cover is ferromagnetic metal.

[0014] Furthermore, countersunk nail holes are provided on the protection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0017] Figure 3 For existing technology Figure 1 ;

[0018] Figure 4 For existing technology Figure 2 .

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Observation pin; 11. Horizontal rod; 12. Vertical rod; 13. Mushroom head; 14. Level bubble; 2. Protection box; 21. L-shaped groove; 22. L-shaped metal reinforcement ring; 23. Protection cover; 24. Notch; 25. Magnet; 26. Countersunk pin hole. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0022] like Figure 1 to Figure 3 As shown, embodiment 1, an observation point device, includes an L-shaped observation nail 1 and a protection box 2; an L-shaped groove 21 is provided on the front end surface of the protection box 2, and an L-shaped metal reinforcement ring 22 is provided in the L-shaped groove 21; the observation nail 1 includes a transverse rod 11 and a vertical rod 12 connected to each other and a mushroom head 13 arranged on the top of the vertical rod 12; the end of the transverse rod 11 is horizontally rotatably connected to the L-shaped metal reinforcement ring 22, and a protection cover 23 is hingedly provided on the outer side of the protection box 2.

[0023] During installation, the protection box 2 is embedded in the wall. When the observation nail 1 is not needed, the observation nail 1 is rotated into the L-shaped metal reinforcement ring 22, so that the horizontal rod 11 and the vertical rod 12 of the observation nail 1 are parallel to the wall, which greatly reduces the size of the protection box 2. The protection box is embedded in the wall to avoid easy bumps on the exterior. When in use, the observation nail 1 is rotated out to make the horizontal rod 11 perpendicular to the wall. In addition, the thickness of the protection box 2 is relatively thin, and there is no need to drill deep holes in the wall during embedded installation, which reduces the difficulty of installation, does not cause damage to the wall structure, and improves the stability of the structure.

[0024] In a specific implementation, the outer shell of the protection box 2 is made of metal, and the space between the outer shell and the L-shaped metal reinforcement ring 22 is filled with a plastic or concrete layer, thereby reducing the production cost.

[0025] Embodiment 2: This embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0026] A vertically arranged rotating shaft is arranged at the end of the transverse rod 11, and a shaft hole is correspondingly arranged on the inner wall of the L-shaped metal reinforcement ring 22, and the rotating shaft is rotatably connected in the shaft hole. The structure is simple and can prevent the observation nail 1 from being stuck and unable to be rotated out.

[0027] Embodiment 3, this embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0028] A level bubble 14 is provided inside the transverse rod 11 and the vertical rod 12. The level bubble 14 can be used to determine whether the vertical rod 12 of the observation nail 1 is vertically upward, so as to prevent the observation nail 1 from being deformed by external force and causing inaccurate observation results.

[0029] Embodiment 4: This embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0030] A notch 24 is provided on one side of the front end surface of the protection box 2 away from the hinged connection with the protection cover 23, so as to facilitate opening the cover.

[0031] Embodiment 5, this embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0032] The front end surface of the protection box 2 is provided with a magnet 25, and the material of the protection cover 23 is ferromagnetic metal. The protection cover 23 is magnetically connected to the magnet 25, which is convenient for fixing the protection cover 23. In a specific implementation, the material of the protection cover 23 is an iron plate.

[0033] Embodiment 6: This embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0034] The protection box 2 is provided with a countersunk nail hole 26 so as to drive in an expansion screw to reinforce the protection box 2.

[0035] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An observation point device, characterized in that: The invention comprises an L-shaped observation nail (1) and a protection box (2); the front end surface of the protection box (2) is provided with an L-shaped groove (21), the L-shaped groove (21) is provided with an L-shaped metal reinforcement ring (22), the observation nail (1) comprises a transverse rod (11) and a vertical rod (12) connected to each other, and a mushroom head (13) arranged on the top of the vertical rod (12), the end of the transverse rod (11) is horizontally rotatably connected to the L-shaped metal reinforcement ring (22), and the outer side of the protection box (2) is hingedly provided with a protection cover (23).

2. An observation point device according to claim 1, characterized in that: A vertically arranged rotating shaft is provided at the end of the transverse rod (11), and an axial hole is correspondingly provided on the inner wall of the L-shaped metal reinforcement ring (22), and the rotating shaft is rotatably connected in the axial hole.

3. The observation point device according to claim 1, characterized in that: Horizontal bubbles (14) are arranged inside the transverse rod (11) and the vertical rod (12).

4. The observation point device according to claim 1, characterized in that: A notch (24) is provided on the front end surface of the protection box (2) away from the hinged connection with the protection cover (23).

5. The observation point device according to claim 1, characterized in that: The front end surface of the protection box (2) is provided with a magnet (25), and the material of the protection cover (23) is ferromagnetic metal.

6. The observation point device according to claim 1, characterized in that: The protection box (2) is provided with a countersunk nail hole (26).

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