Portable level ruler stabilizing stand

Abstract

The present invention discloses a portable level ruler stabilizing frame, comprising: a ruler pad, a tripod support structure and a protective sleeve; the ruler pad is the base of the level ruler during measurement, and is the bottom cover of the protective sleeve after folding; the tripod support structure transmits force to the ground to keep the overall structure stable; the protective sleeve is used to protect the main structure after folding, and transmit the force on one end of the level ruler to the tripod support structure. The portable level ruler stabilizing frame of the present invention has a simple overall structure, a small volume after folding, is easy to disassemble and assemble, can effectively improve the stability of the level ruler, reduce human errors, improve the accuracy of leveling observation, and is conducive to the relocation of surveyors.

Description

Technical Field

[0001] The invention relates to the technical field of surveying and mapping tools, and in particular to a portable leveling rod stabilizing frame. Background Art

[0002] A level rod is an instrument that measures the height difference between two points on the ground based on the principle of leveling. It is also one of the indispensable tools in surveying and mapping work and is often used throughout the entire construction project.

[0003] At present, when measuring elevation in domestic engineering practice, surveyors often need to carry several independent parts such as level ruler, ruler pad, level instrument, etc., and they need manual support. Long-term manual support will make people tired, causing the level ruler to shake and the degree to be unstable, which may cause large measurement errors; this manual ruler measurement method has high labor intensity and low measurement efficiency. At the same time, after the observation is completed, it is inconvenient to disassemble and carry the level ruler when moving the station, which wastes the time and energy of the staff. Therefore, it is urgent to design a level ruler stabilizing frame that is easy to disassemble and carry. Summary of the invention

[0004] To this end, the present invention provides a portable leveling rod stabilizing stand to solve or at least alleviate the above problems.

[0005] According to one aspect of the present invention, there is provided a stabilizing frame suitable for fixing a leveling rod, comprising: a protective sleeve with a connecting bracket installed on the top of the sleeve, suitable for accommodating a tripod support structure and transmitting force; a ruler pad installed on the protective sleeve, suitable for fixing the leveling rod and serving as a bottom cover of the protective sleeve; a tripod support structure, comprising a middle rod and fixedly connected to the protective sleeve via the middle rod, suitable for being accommodated in the protective sleeve and fixedly connected to the ruler pad in a folded state, and suitable for supporting the ruler pad and the leveling rod in an unfolded state.

[0006] Optionally, in the portable level ruler stabilizing stand according to the present invention, the tripod support structure also includes: a connecting device, which is arranged on the middle pole and is suitable for sliding along the middle pole; a second clamping device, which is located at the lower part of the middle pole and is suitable for fixing the connecting device when the tripod support structure is in the unfolded state; a retractable supporting foot, one end of which is connected to the connecting device and the other end of which is provided with a rotating shaft, and is suitable for rotating around the rotating shaft to lock the ruler pad.

[0007] Optionally, in the portable level ruler stabilizing stand according to the present invention, the ruler pad comprises a gasket, the top surface of the gasket is provided with a spherical hinge suitable for connecting with the level ruler, and the periphery of the spherical hinge is provided with a plurality of holes; the supporting feet are suitable for passing through the holes and locking the ruler pad.

[0008] Optionally, in the portable level ruler stabilizing frame according to the present invention, the top surface of the gasket is provided with a protrusion matching the inner wall of the protective sleeve, suitable for being fixedly connected to the protective sleeve through the protrusion; the bottom surface of the gasket is provided with a supporting foot.

[0009] Optionally, in the portable level ruler stabilizing frame according to the present invention, a button is provided on the protective sleeve; one end of the middle rod is passed through the protective sleeve and fixedly connected to the top surface of the protective sleeve, and a movable protrusion cooperating with the button is provided on the upper part of the middle rod, so that the tripod support structure in the folded state can be unlocked by the cooperation between the movable protrusion and the button.

[0010] Optionally, in the portable leveling ruler stabilizing frame according to the present invention, the middle rod is a hollow structure, and a spring structure corresponding to the movable protrusion is provided inside the middle rod.

[0011] Optionally, in the portable level ruler stabilizing frame according to the present invention, the protective sleeve includes: a barrel; a connecting bracket installed at the top of the barrel, a first clamping device is provided at the end of the connecting bracket, the first clamping device includes two fixed side plates and a movable middle plate, the fixed side plates are provided with through holes, the movable main plate is provided with a sleeve facing the through holes, a threaded rod is provided in the sleeve, and the threaded rod passes through the through holes, and an inner wall of the sleeve is provided with an internal thread matching the threaded rod; a clamp, a movable plate is provided at the end of the clamp, and the movable plate is fixedly connected to the threaded rod of the connecting bracket.

[0012] Optionally, in the portable leveling ruler stabilizing frame according to the present invention, the supporting foot includes: a first rod member connected to the connecting device; and a second rod member slidably installed in the first rod member and coaxially arranged with the first rod member.

[0013] Optionally, in the portable leveling rod stabilizing frame according to the present invention, the middle rod includes: a third rod connected to the protective sleeve, and a fourth rod slidably installed in the third rod and coaxially arranged with the third rod.

[0014] Optionally, in the portable leveling rod stabilizing frame according to the present invention, the lower ends of the supporting feet and the middle rod are further hinged with a connecting rod.

[0015] Optionally, in the portable leveling rod stabilizing stand according to the present invention, three supporting feet are provided, and the three supporting feet are evenly mounted on the connecting device.

[0016] Optionally, in the portable level ruler stabilizing stand according to the present invention, wherein: a first threaded hole is provided on the connecting bracket; a second threaded hole is provided on the end of the clamp; and the first threaded hole and the second threaded hole are fixedly connected by the threaded rod.

[0017] According to the technical solution of the present invention, a portable level rod stabilizing stand is provided, which can effectively improve the stability of the level rod, reduce human errors, improve the accuracy of leveling observations, and facilitate the relocation of surveyors. Specifically, the present invention provides a protective sleeve, maintains the force connection with the level rod in the fixture through the upper connecting bracket, and transmits the force from the tripod support structure to the ground through the middle rod. In this way, the present invention avoids the artificial shaking of the level rod, prevents the problem of unstable degree caused by manual measurement fatigue, and the leveling work can be completed by a single person. The portable level rod stabilizing stand of the present invention has a simple overall structure, a small volume after folding, and is easy to disassemble and assemble. The portable level rod stabilizing stand of the present invention can reduce the labor intensity of surveyors and improve measurement efficiency. At the same time, the small volume design is conducive to relocation and disassembly and carrying after the observation is completed, saving the time and energy of the staff, and is conducive to guiding and optimizing the actual leveling measurement process.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To achieve the above and related purposes, certain illustrative aspects are described herein in conjunction with the following description and accompanying drawings, which indicate various ways in which the principles disclosed herein can be practiced, and all aspects and their equivalents are intended to fall within the scope of the claimed subject matter. The above and other purposes, features and advantages of the present disclosure will become more apparent by reading the following detailed description in conjunction with the accompanying drawings. Throughout the present disclosure, the same reference numerals generally refer to the same parts or elements.

[0020] Figure 1 A schematic structural diagram of a portable leveling rod stabilizing frame 400 (expanded) according to an embodiment of the present invention is shown;

[0021] Figure 2 A schematic structural diagram of a portable leveling rod stabilizing frame 400 (folded) according to an embodiment of the present invention is shown;

[0022] Figure 3 FIG. 1 shows a schematic diagram of a top view of a ruler pad 100 according to an embodiment of the present invention;

[0023] Figure 4 FIG. 4 shows a schematic side structural diagram of a ruler pad 100 according to an embodiment of the present invention;

[0024] Figure 5A front structural schematic diagram of a tripod support structure 300 according to an embodiment of the present invention is shown;

[0025] Figure 6 A front structural schematic diagram of a protective sleeve 200 according to an embodiment of the present invention is shown.

[0026] Figure 7 A schematic diagram of the side structure of a retractable support leg 330 according to an embodiment of the present invention is shown;

[0027] Figure 8 A schematic diagram of the side structure of a retractable support foot 339 according to an embodiment of the present invention is shown;

[0028] Fig. 9 FIG. 1 is a schematic diagram of a top view of a ruler pad 100 according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0030] As mentioned above, the stabilizing frame used for leveling measurement in the prior art has certain functional defects during use, so the present invention proposes a portable leveling rod stabilizing frame 400 with more optimized performance. Figure 1 , Figure 2 The structure diagram of the portable leveling rod stabilizing frame 400 of the present invention is shown. Figure 3 , Figure 4 The schematic diagrams of the structures of the ruler pad 100 according to an embodiment of the present invention are respectively shown.

[0031] like Figure 1 , Figure 2 As shown, a portable leveling ruler stabilizing frame 400 includes a ruler pad 100, a protective sleeve 200 and a tripod support structure 300. The ruler pad 100 is detachably connected to the protective sleeve 200 and the tripod support structure 300. Figure 1 In the measurement state shown, the ruler pad 100 can be used as the base of the level ruler to fix the level ruler. Figure 2 In the folded state shown, the ruler pad 100 is fixedly connected to the protective sleeve 200 and the tripod support structure 300 respectively, and can serve as the bottom cover of the protective sleeve.

[0032] like Figure 3 and Figure 4As shown, the ruler pad 100 includes three evenly distributed supporting feet 110, a gasket 120 and a spherical joint 150. The supporting feet 110 are arranged on the bottom surface of the gasket 120; the gasket 120 has several holes 130 on the periphery of the spherical joint 150, so that the supporting feet 330 can pass through the holes 130 to lock the ruler pad 100. The top surface of the gasket 120 is provided with an annular protrusion 140 that matches the inner wall size of the protective sleeve 200 to prevent the ruler pad from shaking horizontally after being locked; the spherical joint 150 is arranged on the top surface of the gasket 120, and is hinged to the level ruler through the spherical joint 150, so that the level ruler is fixedly installed on the ruler pad 100.

[0033] like Figure 1 , Figure 2 and Figure 6 As shown, the protective sleeve 200 includes a barrel 240, a connecting bracket 210 located at the top of the barrel 240, and a clamp 250. A first clamping device 220 is provided at the end of the connecting bracket 210; the clamping device 220 includes two fixed side plates 221 and a movable middle plate 222, the fixed side plates 221 are provided with perforations, the movable middle plate 222 is provided with a sleeve 223 directly opposite to the perforations, a threaded rod 224 passing through the perforations is provided in the sleeve 223, and an inner wall of the sleeve 223 is provided with an internal thread matching the threaded rod 224; a button 241 is provided in the middle of the barrel 240, and the button 241 can be connected to the protrusion 311 on the middle rod of the supporting tripod so as to unlock the folded tripod supporting structure 300; a movable middle plate 222 is provided at the end of the clamp 250, and the movable middle plate 222 is fixedly connected to the connecting bracket 210 through the threaded rod 224.

[0034] like Figure 1 As shown, the protective sleeve 200 is fixedly connected to the tripod support structure 300 via a middle rod 310 .

[0035] Furthermore, if Figure 1 and Figure 5 As shown, the tripod support structure 300 includes a middle pole 310 , a second clamping device 312 , an annular connecting device 320 , and a supporting foot 330 . The end of the middle rod 310 is fixedly connected to the inner top surface of the protective sleeve 200, and a movable protrusion 311 corresponding to the button on the protective sleeve is provided on the upper part of the middle rod; the second clamping device 312 is located at the lower part of the middle rod, and when the tripod support structure 300 is fully opened and unfolded, the second clamping device 312 can be used to fix the connecting device 320; the annular connecting device 320 is arranged around the outer periphery of the middle rod 310, and can slide up and down along the middle rod 310, and the end of the connecting device 320 is hinged to the supporting foot 330; the supporting foot 330 is a retractable structure, one end of the retractable supporting foot 330 is hinged to the connecting device 320, and the other end is a ground supporting end, and a rotating shaft 331 is provided at the end, and the bottom end of the supporting foot 330 can rotate around the axis to lock the ruler pad 100; the supporting foot 330 is fixedly connected to the connecting device 320 to form a stable structure.

[0036] According to an embodiment, the bottom end of the support foot 330 of the present invention rotates around the axis to lock the ruler pad 100, but the present invention is not limited thereto.

[0037] Specifically, Figure 8 As shown, the bottom end of the support leg 339 has a hook structure 339, and the tripod support structure 300 is connected to the Fig. 9 The ruler pad 199 with the cross bar 132 shown in the figure cooperates with the protrusion 311 on the middle bar, and the process of locking the ruler pad 199 can also be realized.

[0038] According to one embodiment, the retractable supporting leg 330 includes: a first rod 332 connected to the connecting device 320 and a second rod 333 embedded in the first rod 332; the first rod 332 and the second rod 333 are coaxially arranged, and the second rod 333 slides along the first rod 332; a fixing bolt 334 threadedly engaged with the first rod 332 is passed through the first rod 332, and one end of the fixing bolt 334 is tightly pressed against the second rod 333.

[0039] According to one embodiment, the middle rod 310 includes a third rod 312 connected to the inside of the protective sleeve 200 and a fourth rod 313 embedded in the third rod 312; the third rod 312 and the fourth rod 313 are coaxially arranged, and the fourth rod 313 slides along the third rod 312; the third rod 312 is provided with a fixing bolt 314 that is threadedly matched with it, and one end of the fixing bolt is tightly pressed against the fourth rod 313.

[0040] Furthermore, a movable protrusion 311 corresponding to the button 241 on the protective sleeve is provided on the upper part of the middle rod 310, and a spring structure 316 is provided on the periphery of the middle rod 310; a clamping device 317 and a spring structure 318 corresponding to the connecting device 320 are provided on the lower part of the middle rod 310; the interior of the middle rod is hollow, and a spring structure 315 corresponding to the movable protrusion 311 is provided inside; an annular connecting device 320 is provided on the outer side of the middle rod 310, and a support foot 330 is hinged at the end of the connecting device 320.

[0041] The retractable support leg 330 also includes: a plurality of connecting rods 338 are respectively hinged to the lower side of the support leg 330 and the lower end of the middle rod 310, so that the tripod support structure 300 can be automatically opened after being unlocked, and the support leg 330 can be prevented from opening too large.

[0042] Preferably, three retractable supporting legs 330 are provided and evenly distributed on the connecting device 320 to form a stable structure.

[0043] When in use, press and hold the button 241 outside the protective sleeve, the entire level ruler stabilizing frame 400 is unlocked, twist the bottom end of the supporting foot 330, remove the ruler pad 100 and the supporting foot 330 is unfolded, lock the connecting device 320 on the middle rod 310, insert the level ruler and adjust the length of the middle rod 310 and the supporting foot 330 as needed. After the adjustment is completed, there is no need to hold the level ruler, and the stability of the level ruler is guaranteed. Finally, you only need to wait for measurement.

[0044] A11. A stabilizing frame as described in any one of A2-A4, wherein there are three supporting legs, and the three supporting legs are evenly installed on the connecting device.

[0045] A12. A portable level ruler stabilizing frame as described in A7, wherein a first threaded hole is provided on the connecting bracket; a second threaded hole is provided at the end of the clamp; and the first threaded hole and the second threaded hole are fixedly connected by the threaded rod.

[0046] In the description of this specification, unless otherwise clearly specified and limited, the terms "connected", "fixed", etc. should be understood in a broad sense. In addition, the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or unit referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, cannot be understood as limiting the present invention.

[0047] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

Claims

1. A stabilizing frame, suitable for fixing a level rod, comprising: A protective sleeve, wherein a button is provided on the protective sleeve, and the protective sleeve comprises a barrel, a connecting bracket and a clamp, wherein the connecting bracket is installed at the top end of the barrel, and a first clamping device is provided at the end of the connecting bracket, wherein the first clamping device comprises two fixed side plates and a movable plate, wherein the fixed side plates are provided with through holes, and the movable plate is provided with a threaded sleeve directly opposite to the through holes, wherein a threaded rod is provided inside the threaded sleeve, and the threaded rod passes through the through holes, and an internal thread matching the threaded rod is provided on the inner wall of the threaded sleeve; the clamp is used to clamp a level ruler, and the end of the clamp is connected to the movable plate; Tripod support structure; A ruler pad, when the stabilizing frame is in a folded state, the ruler pad is detachably connected to the protective sleeve and the tripod support structure respectively; when the stabilizing frame is in a measuring state, the ruler pad is removed from the protective sleeve and the tripod support structure so that the ruler pad serves as the base of the leveling ruler and fixes the leveling ruler, wherein the ruler pad includes a gasket, the top surface of the gasket is provided with a spherical hinge suitable for connecting with the leveling ruler, and the gasket is hinged with the leveling ruler through the spherical hinge so that the leveling ruler is fixedly installed on the ruler pad, and the periphery of the spherical hinge is provided with a plurality of holes; The tripod support structure includes a middle rod, and is fixedly connected to the protective sleeve through the middle rod. One end of the middle rod is inserted into the protective sleeve and is fixedly connected to the top surface of the protective sleeve. The upper part of the middle rod is provided with a movable protrusion that cooperates with the button, so that the tripod support structure in the folded state can be unlocked by the cooperation between the movable protrusion and the button; wherein, when the stabilizing frame is in the folded state, the tripod support structure is folded and accommodated in the protective sleeve and fixedly connected to the ruler pad; when the stabilizing frame is in the measuring state, the tripod support structure is unfolded and supports the level ruler; The tripod support structure also includes: A connecting device, which is disposed around the middle rod and is suitable for sliding along the middle rod; A second clamping device, located at the lower part of the middle pole, suitable for fixing the connecting device when the tripod support structure is in the unfolded state; A retractable support leg, one end of which is hinged to the connecting device and the other end of which is provided with a rotating shaft, the bottom end of the support leg is suitable for rotating around the rotating shaft to lock the ruler pad, wherein the support leg is suitable for passing through the hole and locking the ruler pad, and the lower side of the support leg is hinged to the lower end of the middle rod through a plurality of connecting rods so that the tripod support structure can be automatically expanded after being unlocked.

2. The stabilizing frame according to claim 1, wherein: The top surface of the gasket is provided with a protrusion matching the inner wall of the protective sleeve, and is suitable for being fixedly connected with the protective sleeve through the protrusion; The bottom surface of the gasket is provided with supporting feet.

3. The stabilizing frame according to claim 1 or 2, wherein: The supporting foot comprises: A first rod connected to the connecting device; The second rod is slidably installed in the first rod and is coaxially arranged with the first rod.

4. The stabilizing frame according to claim 1 or 2, wherein the middle rod comprises: A third rod is connected to the protective sleeve, and a fixing bolt matched with the thread thereof is passed through the third rod; The fourth rod is embedded in the third rod and coaxially arranged with the third rod. The fourth rod is suitable for sliding along the third rod, and one end of the fixing bolt is tightly pressed against the fourth rod.

5. The stabilizing frame according to claim 1 or 2, wherein: There are three supporting feet, and the three supporting feet are evenly installed on the connecting device.

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