Engineering surveying level gauge convenient to assemble and use method thereof

Abstract

The invention discloses an engineering surveying level gauge convenient to assemble and a using method thereof.The engineering surveying level gauge comprises a level gauge body, a level gauge base, a supporting frame top plate and supporting legs, an objective lens and an ocular lens are arranged on the front surface and the rear surface of the level gauge body respectively, and the level gauge base is installed on the surface of the bottom of the level gauge body; the level gauge base is installed at the top of the supporting frame top plate, a plurality of supporting legs are rotatably installed at the bottom of the supporting frame top plate, an insertion block is fixed to the surface of the bottom of the level gauge base, and a disassembly and assembly structure is arranged between the level gauge base and the supporting frame top plate; a level gauge in the prior art is improved and optimized, and a dismounting structure is designed between the level gauge base and the supporting frame top plate, so that the dismounting convenience between the level gauge base and the supporting frame top plate can be greatly improved, and an operator can conveniently and quickly assemble the level gauge on site; meanwhile, the stability of the level gauge after installation is also guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of levels, and in particular relates to an engineering measurement level that is easy to assemble and a method of using the level. Background Art

[0002] The level is one of the indispensable instruments in the process of engineering measurement. It is an instrument for establishing a horizontal line of sight to measure the height difference between two points on the ground. The principle is to measure the height difference between ground points according to the principle of leveling measurement. The main components include an eyepiece, an objective lens, a tube level (or compensator), a vertical axis, a base, a foot screw, etc. For example, the existing patent with the publication number CN212643932U discloses "a level, including a level body, a fixing plate is provided below the level body, a support assembly is provided below the fixing plate, and a reinforcement assembly for increasing the support area is provided on the support assembly". It can be seen that the application describes a common level;

[0003] When the level in the prior art is in use, it is necessary to connect the level base and the support frame together to realize the assembly of the level. However, the assembly method in the prior art mostly adopts threaded or bolted connection. This traditional fixed connection method requires repeated screwing during each assembly and subsequent disassembly, which is relatively inconvenient. At the same time, it is easy for the overall assembly stability of the level to be reduced due to loose threads during use. For this reason, the present invention proposes an engineering measurement level that is easy to assemble and a method for using the same. Summary of the invention

[0004] The object of the present invention is to provide an engineering surveying level that is easy to assemble and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an engineering surveying level that is easy to assemble, comprising a level body, a level base, a support frame top plate and legs, the front and rear surfaces of the level body are respectively provided with an objective lens and an eyepiece, the bottom surface of the level body is installed with a level base, the level base is installed on the top of the support frame top plate, a plurality of legs are rotatably installed at the bottom of the support frame top plate, an insert block is fixed to the bottom surface of the level base, and the bottom end of the insert block penetrates to the bottom center of the support frame top plate, and a disassembly structure is provided between the level base and the support frame top plate;

[0006] The disassembly and assembly structure includes an active latching rod, a latching hole and a pull rod. Active latching rod holes are formed on both side surfaces of the support frame top plate. The active latching rod is movably installed in the active latching rod hole. A latching hole corresponding to the active latching rod is formed on the surface of the insert block. One end of the active latching rod passes through the latching hole. The other end of the active latching rod passes through the surface of the support frame top plate and is rotatably installed with a pull rod. The disassembly and assembly structure also includes an upper sliding groove formed on the upper wall of the active rod hole. A spring A and an upper slider are provided in the upper sliding groove. The bottom end of the upper slider is fixedly connected to the active latching rod, and the spring A is installed between the upper slider and the inner wall of the upper sliding groove.

[0007] Preferably, a cylindrical groove is formed on an inner wall of one side of the upper slide groove, one end of the spring A is inserted into the cylindrical groove, and the other end of the spring A rests on the surface of the upper slide block.

[0008] Preferably, the disassembly and assembly structure also includes two L-shaped supports fixed on the top surface of the support frame top plate, and the positions of the L-shaped supports correspond to the positions of the pull rods, and the ends of the L-shaped supports are provided with rectangular overlaps for the pull rods to enter.

[0009] Preferably, a rubber sleeve is fixed to the bottom surface of the support frame top plate, and the insert block passes through the inner side of the rubber sleeve, the inner wall of the rubber sleeve is provided with two integrated arc-shaped protrusions, and the surface of the insert block is provided with side grooves for the arc-shaped protrusions to be embedded.

[0010] Preferably, a protective component is provided on the top of the level body, and the protective component includes a T-shaped seat fixed on the top surface of the level body, an axle rod is rotatably mounted on the T-shaped seat, both ends of the axle rod are movably connected with connecting plates, and a protective cover B and a protective cover A are respectively fixed to the bottom of the two connecting plates, the protective cover B covers the end of the eyepiece, and the protective cover A covers the end of the objective lens, inner slide grooves are provided at both ends of the axle rod, a spring B and an inner slider are provided in the inner slide groove, a connecting slide rod is fixed to one side surface of the inner slider, one end of the connecting slide rod extends to the end surface of the axle rod and is fixedly connected to the connecting plate.

[0011] Preferably, a rubber top pad is installed on the top surface of the T-shaped seat, and an integrated positioning protrusion is provided on the bottom surface of the rubber top pad. A top groove is provided on the top surface of the T-shaped seat, and two positioning grooves corresponding to the positioning protrusion are provided on the surface of the shaft rod, and the bottom end of the positioning protrusion is embedded in one of the positioning grooves through the top groove.

[0012] A method for using the engineering surveying level instrument comprises the following steps:

[0013] Step 1: First, quickly assemble and connect the level base at the bottom of the level body with the top plate of the support frame through the disassembly and assembly structure to complete the rapid assembly of the level;

[0014] Step 2: Move the assembled level to the measurement area, and then unfold the legs at the bottom of the top plate of the support frame;

[0015] Step 3: Pull the two connecting plates at both ends of the shaft to the side and rotate upward at the same time, so that the protective cover A and the protective cover B no longer block the objective lens and the eyepiece;

[0016] Step 4: Focus your eyes on the eyepiece and use the objective lens to perform engineering measurements on the target area.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the present invention improves and optimizes the level in the prior art, and designs a disassembly and assembly structure between the level base and the top plate of the support frame, which can greatly improve the convenience of disassembly and assembly between the level base and the top plate of the support frame, making it convenient for operators to quickly assemble the level on site, while also ensuring the stability of the level after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 It is a cross-sectional view of the connection between the base of the level instrument and the top plate of the support frame of the present invention;

[0020] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A area;

[0021] Figure 4 is a cross-sectional view of the protection component of the present invention;

[0022] Figure 5 For the present invention Figure 4 A partial enlarged view of the middle B area;

[0023] In the figure: 1. level body; 2. level base; 21. plug-in block; 22. side slot; 3. support frame top plate; 31. rubber sleeve; 32. arc-shaped protrusion; 4. support leg; 5. disassembly and assembly structure; 51. movable clamping rod; 52. clamping hole; 53. pull rod; 54. L-shaped support seat; 55. movable rod hole; 56. upper slide groove; 57. spring A; 58. upper slider; 61. T-shaped seat; 611. rubber top pad; 612. positioning protrusion; 613. top groove; 62. shaft rod; 621. positioning slot; 63. connecting plate; 64. protective cover A; 65. protective cover B; 66. inner slide groove; 67. spring B; 68. inner slider; 69. connecting slide rod; 7. objective lens; 8. eyepiece. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figures 1 to 3 , which is the first embodiment of the present invention, and this embodiment provides a technical solution: an engineering measurement level that is easy to assemble, comprising a level body 1, a level base 2, a support frame top plate 3 and legs 4, the front and rear surfaces of the level body 1 are respectively provided with an objective lens 7 and an eyepiece 8, the bottom surface of the level body 1 is installed with a level base 2, the level base 2 is installed on the top of the support frame top plate 3, a plurality of legs 4 are rotatably installed at the bottom of the support frame top plate 3, an insert block 21 is welded and fixed to the bottom surface of the level base 2, and the bottom end of the insert block 21 penetrates to the bottom center of the support frame top plate 3, and a disassembly structure 5 is provided between the level base 2 and the support frame top plate 3;

[0027] The disassembly and assembly structure 5 includes an active clamping rod 51, a clamping hole 52 and a pull strip 53. Active rod holes 55 are formed on both side surfaces of the support frame top plate 3. The active clamping rod 51 is movably installed in the active rod hole 55. A clamping hole 52 corresponding to the active clamping rod 51 is formed on the surface of the plug block 21. One end of the active clamping rod 51 penetrates into the clamping hole 52, which can stably limit the plug block 21 to ensure the installation stability of the level base 2 and the support frame top plate 3. The other end of the active clamping rod 51 penetrates into the surface of the support frame top plate 3 and is rotatably installed with a pull strip 53. The end of the active clamping rod 51 can be pulled out of the clamping hole 52 by side pulling of the pull strip 53 to realize the rapid disassembly and assembly of the level base 2 and the support frame top plate 3. The disassembly and assembly structure 5 also includes an upper slide groove formed on the upper wall of the active rod hole 55 56, a spring A57 and an upper slider 58 are provided in the upper slide groove 56, the bottom end of the upper slider 58 is fixedly connected to the movable clamping rod 51, and the spring A57 is installed between the upper slider 58 and the inner wall of the upper slide groove 56. Under the push of the spring A57, the movable clamping rod 51 can be stably stuck in the clamping hole 52 during daily use, ensuring the assembly stability of the level base 2 and the support frame top plate 3. If the level base 2 and the support frame top plate 3 are to be separated later, it is only necessary to pull the pull bar 53 sideways to move the movable clamping rod 51 sideways, and make the upper slider 58 compress the spring A57 until the end of the movable clamping rod 51 moves out of the clamping hole 52, so as to release the limit on the plug 21. At this time, the level base 2 can be lifted, and the level base 2 and the support frame top plate 3 can be directly separated.

[0028] Among them, a cylindrical groove is opened on the inner wall of one side of the upper slide groove 56, one end of the spring A57 is inserted into the cylindrical groove, and the other end of the spring A57 is against the surface of the upper slider 58 to ensure the installation stability of the spring A57.

[0029] Among them, the disassembly and assembly structure 5 also includes two L-shaped support seats 54 welded and fixed on the top surface of the support frame top plate 3, and the position of the L-shaped support seat 54 corresponds to the position of the pull rod 53. The end of the L-shaped support seat 54 is provided with a rectangular overlap for the pull rod 53 to enter, so that after the operator pulls the pull rod 53 sideways, the pull rod 53 can be screwed up and overlapped in the rectangular overlap at the end of the L-shaped support seat 54. The pull rod 53 can be supported by the L-shaped support seat 54 to prevent the pull rod 53 and the movable clamping rod 51 from rebounding, thereby facilitating the operator to disassemble and assemble the level base 2, and there is no need to hold the pull rod 53 in hand during the disassembly and assembly of the level base 2.

[0030] Among them, a rubber sleeve 31 is glued and fixed to the bottom surface of the support frame top plate 3, and the plug block 21 passes through the inner side of the rubber sleeve 31. The inner wall of the rubber sleeve 31 is provided with two integrated arc-shaped protrusions 32. The arc-shaped protrusions 32 are also made of rubber material and will undergo elastic deformation when squeezed. The surface of the plug block 21 is provided with a side groove 22 for the arc-shaped protrusions 32 to be embedded in, so that after the bottom end of the plug block 21 passes through the bottom of the support frame top plate 3, the arc-shaped protrusions 32 will also be squeezed into the side groove 22, thereby playing a certain auxiliary limiting effect on the plug block 21 and the level base 2, making it convenient for subsequent operators to insert the movable clamping rod 51 into the clamping hole 52.

[0031] A method for using an engineering measurement level comprises the following steps:

[0032] Step 1: First, quickly assemble and connect the level base 2 at the bottom of the level body 1 with the top plate 3 of the support frame through the disassembly and assembly structure 5 to complete the rapid assembly of the level;

[0033] Step 2: Move the assembled level to the measurement area, and then unfold the legs 4 at the bottom of the support frame top plate 3;

[0034] Step 3: Pull the two connecting plates 63 at both ends of the shaft 62 to the side and rotate upward at the same time, so that the protective cover A 64 and the protective cover B 65 no longer block the objective lens 7 and the eyepiece 8;

[0035] Step 4: Align your eyes with the eyepiece 8 and use the objective lens 7 to perform engineering measurement on the target area.

[0036] Example 2

[0037] See also Figures 1 to 5, which is the second embodiment of the present invention, is based on the previous embodiment, except that a protective component can be provided to wrap and protect the objective lens 7 and the eyepiece 8 during the period when the level is not in use, so as to prevent collision with foreign objects.

[0038] Specifically, a protective component is provided on the top of the level main body 1, and the protective component includes a T-shaped seat 61 fixed on the top surface of the level main body 1, and a shaft 62 is rotatably installed on the T-shaped seat 61. Both ends of the shaft 62 are movably connected with connecting plates 63, and the bottoms of the two connecting plates 63 are respectively fixed with protective covers B65 and protective covers A64. The protective cover B65 covers the end of the eyepiece 8, and the protective cover A64 covers the end of the objective lens 7, which can protect the objective lens 7 and the eyepiece 8 from collision with foreign objects. Both ends of the shaft 62 are provided with inner grooves 66, and the inner grooves 66 are provided with springs B67 and inner sliders 68. The inner sliders 68 are provided with springs B67 and inner sliders 68. A connecting slide rod 69 is fixed to the surface of one side, and one end of the connecting slide rod 69 extends to the end surface of the shaft rod 62 and is fixedly connected to the connecting plate 63. If the level is to be used normally in the future, it is only necessary to pull the connecting plate 63 so that the connecting slide rod 69 pulls the inner slider 68, causing the spring B67 to be compressed until the protective cover A64 and the protective cover B65 are separated from the objective lens 7 and the eyepiece 8, and the shaft rod 62 can be rotated. After the shaft rod 62 is rotated one hundred and eighty degrees, the protective cover A64 and the protective cover B65 will rotate up to a high position above the objective lens 7 and the eyepiece 8, so as not to cause any obstruction to the objective lens 7 and the eyepiece 8. At this time, the level can be used normally for measurement.

[0039] Among them, a rubber top pad 611 is installed on the top surface of the T-shaped seat 61, and an integrated positioning protrusion 612 is provided on the bottom surface of the rubber top pad 611. Both are made of rubber material and will undergo elastic deformation when squeezed. A top groove 613 is provided on the top surface of the T-shaped seat 61, and two positioning card grooves 621 corresponding to the positioning protrusion 612 are provided on the surface of the shaft rod 62. The bottom end of the positioning protrusion 612 is embedded in one of the positioning card grooves 621 through the top groove 613, so that the shaft rod 62 can be limited by the positioning protrusion 612 during daily use. When the shaft rod 62 is rotated one hundred and eighty degrees with the protective cover B65 and the protective cover A64, the end of the positioning protrusion 612 will be squeezed into the other positioning card groove 621, thereby realizing auxiliary limiting after the shaft rod 62 is rotated one hundred and eighty degrees.

[0040] Although embodiments of the present invention have been shown and described (see the above detailed description for details), it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An engineering surveying level that is easy to assemble, comprising a level body (1), a level base (2), a support frame top plate (3) and legs (4), wherein the front and rear surfaces of the level body (1) are respectively provided with an objective lens (7) and an eyepiece (8), the bottom surface of the level body (1) is provided with a level base (2), the level base (2) is installed on the top of the support frame top plate (3), and a plurality of legs (4) are rotatably installed on the bottom of the support frame top plate (3), characterized in that: An insert block (21) is fixed to the bottom surface of the level base (2), and the bottom end of the insert block (21) penetrates to the bottom center of the support frame top plate (3), and a disassembly structure (5) is provided between the level base (2) and the support frame top plate (3); The disassembly and assembly structure (5) comprises a movable clamping rod (51), a clamping hole (52) and a pull rod (53); movable rod holes (55) are provided through the surfaces of both sides of the support frame top plate (3); the movable clamping rod (51) is movably installed in the movable rod hole (55); a clamping hole (52) corresponding to the movable clamping rod (51) is provided through the surface of the insert block (21); one end of the movable clamping rod (51) penetrates into the clamping hole (52); the other end of the movable clamping rod (51) penetrates into the surface of the support frame top plate (3) and is rotatably installed with a pull rod (53).

2. The engineering surveying level that is easy to assemble according to claim 1 is characterized by: The disassembly and assembly structure (5) also includes an upper slide groove (56) provided on the upper wall of the movable rod hole (55), a spring A (57) and an upper slider (58) being provided in the upper slide groove (56), the bottom end of the upper slider (58) being fixedly connected to the movable latch rod (51), and the spring A (57) being installed between the upper slider (58) and the inner wall of the upper slide groove (56).

3. The engineering surveying level that is easy to assemble according to claim 2 is characterized by: A cylindrical groove is formed on the inner wall of one side of the upper slide groove (56), one end of the spring A (57) is inserted into the cylindrical groove, and the other end of the spring A (57) is pressed against the surface of the upper slide block (58).

4. The engineering surveying level that is easy to assemble according to claim 1 is characterized by: The disassembly and assembly structure (5) also includes two L-shaped support seats (54) fixed on the top surface of the support frame top plate (3), and the position of the L-shaped support seats (54) corresponds to the position of the pull rod (53), and the end of the L-shaped support seat (54) is provided with a rectangular overlap for the pull rod (53) to enter.

5. The engineering surveying level that is easy to assemble according to claim 1 is characterized by: A rubber sleeve (31) is fixed to the bottom surface of the support frame top plate (3), and the insert block (21) passes through the inner side of the rubber sleeve (31), the inner wall of the rubber sleeve (31) is provided with two integrated arc-shaped protrusions (32), and the surface of the insert block (21) is provided with a side slot (22) for the arc-shaped protrusion (32) to be embedded.

6. The engineering surveying level that is easy to assemble according to claim 1, characterized in that: A protective assembly is provided at the top of the level body (1), and the protective assembly includes a T-shaped seat (61) fixed on the top surface of the level body (1), a shaft (62) is rotatably mounted on the T-shaped seat (61), both ends of the shaft (62) are movably connected with connecting plates (63), and the bottoms of the two connecting plates (63) are respectively fixed with protective covers B (65) and protective covers A (64), the protective cover B (65) covers the end of the eyepiece (8), and the protective cover A (64) covers the end of the objective lens (7), both ends of the shaft (62) are provided with inner grooves (66), a spring B (67) and an inner slider (68) are provided in the inner grooves (66), a connecting slide rod (69) is fixed to one side surface of the inner slider (68), one end of the connecting slide rod (69) extends to the end surface of the shaft (62) and is fixedly connected to the connecting plate (63).

7. The engineering surveying level that is easy to assemble according to claim 6 is characterized by: A rubber top pad (611) is installed on the top surface of the T-shaped seat (61), and an integrated positioning protrusion (612) is provided on the bottom surface of the rubber top pad (611). A top groove (613) is provided on the top surface of the T-shaped seat (61), and two positioning grooves (621) corresponding to the positioning protrusion (612) are provided on the surface of the shaft rod (62), and the bottom end of the positioning protrusion (612) is embedded in one of the positioning grooves (621) through the top groove (613).

8. A method for using the engineering surveying level as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: First, quickly assemble and connect the level base (2) at the bottom of the level body (1) with the top plate (3) of the support frame through the disassembly and assembly structure (5) to complete the rapid assembly of the level; Step 2: Move the assembled level to the measurement area, and then unfold the legs (4) at the bottom of the support frame top plate (3); Step 3: Pull the two connecting plates (63) at both ends of the shaft (62) to the side and rotate upward at the same time, so that the protective cover A (64) and the protective cover B (65) no longer block the objective lens (7) and the eyepiece (8); Step 4: Align your eyes with the eyepiece (8) and use the objective lens (7) to perform engineering measurement on the target area.

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