Observation windproof device of relative gravimeter

Abstract

The utility model discloses an observation windproof device of a relative gravimeter, and relates to the technical field of relative gravity measurement. Comprising windproof pieces which are made of thin plates, a plurality of windproof pieces are hinged in a matched mode to form a windproof piece chain, and two windproof pieces at the head and the tail of the windproof piece chain are connected in a matched mode to form a closed ring. The wind-proof device has the beneficial effects that the wind-proof device for the relative gravity observation is convenient to use, simple to operate and good in wind-proof effect; during transportation, a plurality of windproof pieces can be matched and hinged to form a windproof piece chain to be folded and stored, so that the space is saved; during observation, the relative gravimeter is placed in a closed ring formed by connecting the two windproof pieces at the head and the tail of the windproof piece chain in a matched mode, the relative gravity observation windproof device resists the influence of wind power, a stable external environment is provided for observation of the relative gravimeter, and a guarantee is provided for obtaining accurate observation data.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of relative gravity measurement, in particular to a windproof device for relative gravimeter observation. BACKGROUND

[0002] Gravity measurement is to measure the gravity acceleration of a point on the ground using a gravimeter according to different purposes and requirements. Gravity measurement is an important surveying and mapping technology and has wide applications in the fields of geophysics, surveying and mapping, geology and spaceflight; relative gravity measurement is to measure the gravity difference between two points.

[0003] Most of the current relative gravity measurements are performed outdoors; the existing relative gravimeter transport box mainly considers the convenience of carrying and the protection of the relative gravimeter during transportation; when the relative gravimeter is observed, the relative gravimeter needs to be taken out of the transport box and placed on the ground or observation pier for observation; the relative gravimeter is in contact with the ground through three foot screws installed on the relative gravimeter to realize the horizontal adjustment of the relative gravimeter.

[0004] The existing relative gravimeter is very sensitive, and the resolution is better than 10 -9 ms -2 During observation, the relative gravimeter will be affected by the wind, causing the observation data to fluctuate and affecting the observation, and reliable observation data may not be obtained during strong wind; at this time, an umbrella or other objects are usually used to block and weaken the influence of the wind; however, due to the change of wind direction or the limitation of observation position, such temporary windproof measures cannot well provide good windproof function for the observation of the relative gravimeter. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a windproof device for relative gravimeter observation, which comprises a windproof sheet made of a thin plate material, a plurality of windproof sheets are connected to form a windproof sheet chain through hinging, and two windproof sheets at the head and tail of the windproof sheet chain are connected to form a closed ring.

[0006] Further, three first connecting sleeves are equidistantly arranged on the right side of the windproof sheet, two second connecting sleeves are arranged on the left side of the windproof sheet corresponding to the gap position between the three first connecting sleeves, the first connecting sleeves and the second connecting sleeves between a plurality of windproof sheets are matched, and the windproof sheet shafts are respectively pinned in the first connecting sleeves and the second connecting sleeves to be hinged, thereby forming the windproof sheet chain, and the first connecting sleeves and the second connecting sleeves of the two windproof sheets at the head and tail are matched and hinged through the pinning of the closed plug.

[0007] Further, the windproof sheet is made of a stainless steel or aluminum alloy plate material, and the first connecting sleeve and the second connecting sleeve are non-closed cylinders formed by cutting and rolling the body of the windproof sheet.

[0008] Further, the windproof sheet rotating shaft is a cylindrical round bar made of stainless steel material, the diameter of the windproof sheet rotating shaft is slightly smaller than the inner hole diameter of the first connecting sleeve and the second connecting sleeve, and the height of the windproof sheet rotating shaft is equal to the height of the windproof sheet.

[0009] Further, the closing bolt is made of stainless steel material, the body of the closing bolt is cylindrical, the height of the body is slightly smaller than the height of the windproof sheet, and the upper end of the body of the closing bolt is provided with a pull ring.

[0010] Further, the height of the windproof sheet is not less than the maximum height of the relative gravimeter.

[0011] The beneficial effects of the present application are:

[0012] The relative gravity observation windproof device is convenient to use, simple to operate, and good in windproof effect; during transportation, a plurality of windproof sheets are folded and stored in the form of a windproof sheet chain formed by being hingedly connected, thereby saving space; during observation, the relative gravimeter is placed in a closed loop formed by being connected to the two windproof sheets at the head and tail of the windproof sheet chain, the relative gravity observation windproof device resists the influence of wind, provides a stable external environment for the observation of the relative gravimeter, and provides a guarantee for obtaining accurate observation data. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 FIG. 1 is a schematic view of a windproof sheet chain of a relative gravity observation windproof device according to the present application;

[0014] Figure 2 FIG. 2 is a front view of a windproof sheet of a relative gravity observation windproof device according to the present application;

[0015] Figure 3 FIG. 3 is a top view of a windproof sheet of a relative gravity observation windproof device according to the present application;

[0016] Figure 4 FIG. 4 is a schematic view of a windproof sheet rotating shaft of a relative gravity observation windproof device according to the present application;

[0017] Figure 5 FIG. 5 is a schematic view of a closing bolt of a relative gravity observation windproof device according to the present application;

[0018] Figure 6 FIG. 6 is a schematic view of the use state of a protective cover of a relative gravity observation windproof device according to the present application;

[0019] Figure 7 FIG. 7 is a schematic view of a relative gravity observation windproof device according to the present application; Figure 6 FIG. 8 is an enlarged schematic view of position A of the relative gravity observation windproof device according to the present application.

[0020] Among them, 1. windproof plate, 11. first connecting sleeve, 12. second connecting sleeve; 2. windproof plate shaft; 3. closing pin, 31. pull ring; 4. relative gravimeter. Detailed Implementation

[0021] Example 1, as Figures 1-7 As shown, a windproof device for observation of a relative gravimeter includes a windproof plate 1, which is made of a thin plate. Multiple windproof plates 1 are hinged together to form a windproof plate chain. The two windproof plates 1 at the beginning and end of the windproof plate chain are connected to form a closed loop.

[0022] In this embodiment, three first connecting sleeves 11 are equidistantly arranged on the right side of the windproof plate 1, and two second connecting sleeves 12 are arranged on the left side of the windproof plate 1 corresponding to the gap position between the three first connecting sleeves 11. The first connecting sleeves 11 and the second connecting sleeves 12 between the six windproof plates 1 cooperate with each other, and the windproof plate pivot 2 is pinned into the first connecting sleeve 11 and the second connecting sleeve 12 respectively for hinge, forming a windproof plate chain. The first connecting sleeves 11 and the second connecting sleeves 12 of the two windproof plates 1 at the beginning and end of the windproof plate chain cooperate with each other and are hinged by pinning the closing pin 3. It should be understood that the measuring personnel can decide how many windproof plates 1 to form the windproof plate chain based on the size of the conventional relative gravimeter, that is, the size of the closed loop formed by the windproof plate chain. In other words, the measuring personnel use the corresponding number of windproof plates 1 to form the windproof plate chain according to the size of the relative gravimeter.

[0023] In this embodiment, the windproof sheet 1 is made of 0.5mm thick stainless steel plate. The first connecting sleeve 11 and the second connecting sleeve 12 are non-closed cylinders formed by cutting and rolling the windproof sheet 1 body. When multiple windproof sheets 1 are hinged, after the windproof sheet pivot 2 is inserted, the first connecting sleeve 11 can be clamped with pliers to effectively prevent the windproof sheet pivot 2 from falling off. The windproof sheet pivot 2 is a cylindrical rod made of stainless steel. The diameter of the windproof sheet pivot 2 is slightly smaller than the inner diameter of the first connecting sleeve 11 and the second connecting sleeve 12. The height of the windproof sheet pivot 2 is equal to the height of the windproof sheet 1. The closing pin 3 is made of stainless steel. The body of the closing pin 3 is cylindrical, and its height is slightly less than that of the windproof plate 1. That is, the lower end of the closing pin 3 is inserted into the first connecting sleeve 11 at the bottom of the windproof plate 1, about halfway. The upper end of the body of the closing pin 3 is provided with a pull ring 31. The pull ring 31 can be used to insert and pull the closing pin 3. The pull ring 31 also has a positioning function when the closing pin 3 is inserted into the inner hole of the first connecting sleeve 11 and the second connecting sleeve 12.

[0024] In the embodiment, the height of the windproof sheet 1 is not less than the maximum height of the relative gravimeter, and it should be understood that after the relative gravimeter is erected at the measuring point, the closed loop formed by the windproof sheet chain composed of the windproof sheet 1 surrounds the relative gravimeter, and the maximum height of the windproof sheet chain is higher than the relative gravimeter, thereby achieving a good windproof effect.

[0025] In the above embodiment, the windproof sheet 1, the windproof sheet rotating shaft 2 and the closing bolt are all made of stainless steel, which can effectively prevent rust and prolong the service life.

[0026] The above-described specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the application. It should be understood that the above-described specific embodiments are only for the application and are not intended to limit the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application should be included in the protection scope of the application.

Claims

1. A wind shield for the observation of a relative gravimeter comprising a wind shield sheet (1), characterized in that The windproof sheet (1) is made of sheet material, a plurality of the windproof sheet (1) is matched with the hinge to form a windproof sheet chain, the two windproof sheets (1) at the head and tail of the windproof sheet chain are matched and connected to form a closed ring; the right side of the windproof sheet (1) is provided with three first connecting sleeves (11) at equal intervals, the left side of the windproof sheet (1) is provided with two second connecting sleeves (12) corresponding to the gap position between the three first connecting sleeves (11), the first connecting sleeve (11) and the second connecting sleeve (12) between a plurality of the windproof sheet (1) are matched, and the windproof sheet shaft (2) is respectively punched into the first connecting sleeve (11) and the second connecting sleeve (12) to be hinged, forming a windproof sheet chain, and the first connecting sleeve (11) and the second connecting sleeve (12) of the two windproof sheets (1) at the head and tail are matched and hinged through the closed bolt (3).

2. The windproof device for observation of a relative gravimeter according to claim 1, characterized in that, The windproof sheet (1) is made of stainless steel or aluminum alloy sheet material, the first connecting sleeve (11) and the second connecting sleeve (12) are non-closed cylinders made by cutting and rolling the body of the windproof sheet (1).

3. The windproof device for observation of a relative gravimeter according to claim 1, characterized in that, The windproof sheet shaft (2) is a cylindrical round bar made of stainless steel material, the diameter of the windproof sheet shaft (2) is slightly smaller than the inner hole diameter of the first connecting sleeve (11) and the second connecting sleeve (12), and the height of the windproof sheet shaft (2) is equal to the height of the windproof sheet (1).

4. The windproof device for observation of a relative gravimeter according to claim 1, characterized in that, The closed bolt (3) is made of stainless steel material, the body of the closed bolt (3) is cylindrical, and the body height is slightly smaller than the height of the windproof sheet (1), and the upper end of the body of the closed bolt (3) is provided with a pull ring (31).

5. The windproof device for observation of a relative gravimeter according to claim 1, wherein The height of the windproof sheet (1) is not less than the maximum height of the relative gravimeter.

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