Gradient measuring device

Abstract

The utility model relates to the technical field of measuring equipment, in particular to a gradient measuring device which comprises a measuring scale, a front end plate and a base, a friction-reducing accurate measuring structure is arranged on the inner side of the measuring scale, the friction-reducing accurate measuring structure comprises a leakage-proof sleeve, a positioning shaft and a positioning mark, the leakage-proof sleeve is fixedly installed inside the measuring scale, and the positioning shaft is fixedly installed on the base. And the positioning shaft is fixedly installed in the center of the interior of the leakage-proof sleeve, a pull rope is fixedly installed at the top end of the positioning shaft, and a buoyancy block is fixedly installed at the top end of the pull rope. According to the gradient measuring device, the base at the lower end of the measuring ruler is attached to the measuring surface, then the buoyancy block floats upwards in the suspension liquid, the pointer is driven by the vertically floating buoyancy block to point to the angle reading on the scale plate at the moment, and the pointer is controlled to always keep vertical and horizontal for measurement through liquid buoyancy; the influence and interference of frictional resistance are reduced to the minimum, and the measurement precision of the ramp measurement device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring equipment, in particular to a slope measuring device. Background Art

[0002] In existing civil engineering construction, it is often necessary to measure the slope of building structures. The most commonly used measuring instrument is the slope meter, which is an economical and practical inclination measuring tool with an accuracy of up to 0.1 degrees. The product has the functions of measuring absolute angles, relative angles, slopes, and data retention. The slope meter is an essential angle measuring tool for engineering planning, line inspection, construction, installation, decoration, renovation, supervision, quality inspection, and acceptance. It is mainly used for the measurement of flatness, horizontality, verticality, and slope.

[0003] For example, the authorization announcement number "CN218411174U" is named as a slope measuring device. Although a base is set, and a T-slot is used between the base and the measuring ruler for assembly, when the base is worn due to long-term use and contact with the ground by the measuring ruler, the base can be slid and removed from the measuring ruler, thereby achieving the purpose of facilitating the replacement of the base. However, the existing slope measuring device uses a rotatable level and an indicator needle to point to the reading on the scale plate to achieve the slope measurement operation. However, the slope measuring device is generally used on dusty construction sites. Therefore, the gap between the level tube connecting the indicator needle and the measuring device for rotation is easy to enter dust. After a long time of use, the friction between the rotating indicator needle and the measuring device will gradually increase. Therefore, in actual measurement, the rotation of the indicator needle will be jerky and not sensitive enough, thereby affecting the measurement accuracy of the slope measuring device.

[0004] At the same time, the existing slope measuring device is relatively long in overall length, and the construction workers basically need to carry it with them. Then, they need to take it out for measurement at a certain location, and then walk around with the large slope measuring device. Therefore, the slope measuring device is not convenient to carry, and the storage space after not in use is relatively temporary, which affects the practicality of the slope measuring device. Utility Model Content

[0005] The utility model aims to solve the problems of low measurement accuracy and poor practicability of the slope measuring device, and proposes a slope measuring device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slope measuring device, comprising a measuring ruler, a front end plate and a base, the inner side of the measuring ruler is provided with a friction-reducing precise measurement structure, the friction-reducing precise measurement structure comprises a leak-proof sleeve, a positioning shaft and a positioning mark, the leak-proof sleeve is fixedly installed inside the measuring ruler, the positioning shaft is fixedly installed at the inner center of the leak-proof sleeve, a pull rope is fixedly installed on the top end of the positioning shaft, a buoyancy block is fixedly installed on the top end of the pull rope, an indicator needle is fixedly installed on the top end of the buoyancy block, a scale plate is fixedly sleeved on the outer side of the leak-proof sleeve, a plurality of the positioning marks are fixedly installed on the outer wall of the measuring ruler, a suspension is provided inside the leak-proof sleeve, and the buoyancy block is movably arranged inside the suspension.

[0007] Preferably, the plurality of positioning marks are arranged opposite to the scale plate, and the top end of the indicator needle is arranged opposite to the scale plate.

[0008] Preferably, one end of the measuring ruler is provided with a measuring ruler flipping and folding structure;

[0009] The measuring ruler flipping and folding structure comprises a rotating pin, a connecting piece and a fixing pin;

[0010] The plurality of connecting pieces are movably connected to the ends of the measuring ruler, the interiors of the plurality of connecting pieces are fixedly connected with fixing nails, the outer sides of the plurality of connecting pieces are rotatably connected with rotating pins, the other sides of the plurality of connecting pieces are movably connected with the front end plate, the ends of the plurality of fixing nails are fixedly connected with the front end plate, and the rear side of the front end plate is rotatably connected with the measuring ruler.

[0011] Preferably, the outer wall of the measuring ruler is provided with a front end plate positioning clamping structure;

[0012] The front end plate positioning and clamping structure comprises a support seat, a protrusion and a sliding rod;

[0013] The two sliding rods are slidably connected to the inner wall of the measuring ruler, the ends of the two sliding rods are fixedly installed with convex balls, the rear sides of the two convex balls are fixedly installed with springs, the two springs are movably sleeved on the outer sides of the sliding rods, the support seat is fixedly installed on the outer wall of the front end plate, the front end of the support seat is fixedly connected with a convex block, and the two sides of the convex block are movably connected to the front end of the convex ball.

[0014] Preferably, two limit plates are fixedly connected to the interior of the front end plate, and level tubes are fixedly installed on the inner sides of the two limit plates.

[0015] Preferably, a grip groove is fixedly provided on the inner side of the front end plate, and a plurality of bases are fixedly sleeved on the outer wall of the measuring ruler.

[0016] The utility model proposes a slope measuring device, which has the beneficial effect of: by fitting the base at the lower end of the measuring ruler to the measuring surface, the buoyancy block will float upward in the suspension, and the indicator needle will be driven by the vertically floating buoyancy block to point to the angle reading on the scale plate, and the buoyancy of the liquid is used to control the indicator needle to always maintain a vertical level for measurement, thereby minimizing the influence and interference of frictional resistance, and greatly improving the measurement accuracy of the slope measuring device.

[0017] First, the connecting piece is fastened to the outer wall of the measuring ruler and the front end plate by fixing nails, and the front end plate can be flipped and folded along the rotating pin at the end of the measuring ruler, and the support seat will drive the front end protrusion to insert into the middle of the two sliding rods on the outer wall of the measuring ruler. Grooves are provided on both sides of the protrusion, and the spring will release the elastic force to push the protrusion to the outside of the protrusion and get stuck. At this time, the front end plate is folded up with the measuring ruler, reducing the volume of the slope measuring device for easy taking and storage. The foldable and flippable structure is used to reduce the volume of the slope measuring device and improve the practicability of the slope measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 for Figure 1 A front cross-sectional schematic diagram of

[0020] Figure 3 for Figure 1 A schematic cross-sectional view of the top surface after folding;

[0021] Figure 4 for Figure 2 Enlarged cross-sectional view of part A in the middle;

[0022] Figure 5 for Figure 2 Enlarged cross-sectional view of part B in the middle;

[0023] Figure 6 for Figure 3 Enlarged cross-sectional view of part C in the middle.

[0024] In the figure: 1. measuring ruler, 2. front end plate, 3. friction reducing precise measurement structure, 31. leak-proof sleeve, 32. positioning shaft, 33. suspension, 34. pull rope, 35. buoyancy block, 36. indicator needle, 37. scale plate, 38. positioning mark, 4. measuring ruler flipping and folding structure, 41. rotating pin, 42. connecting piece, 43. fixing nail, 5. front end plate positioning clamping structure, 51. supporting seat, 52. protrusion, 53. protruding ball, 54. spring, 55. sliding rod, 6. grip groove, 71. limit plate, 72. level tube, 8. base. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] See also Figure 1-6 A slope measuring device comprises a measuring ruler 1, a front end plate 2 and a base 8. A friction reducing precise measuring structure 3 is arranged on the inner side of the measuring ruler 1. The friction reducing precise measuring structure 3 comprises a leakproof sleeve 31, a positioning shaft 32 and a positioning mark 38. The leakproof sleeve 31 is fixedly installed inside the measuring ruler 1. The leakproof sleeve 31 is made of a transparent plastic material surrounded by a circle of rubber. The leakproof sleeve 31 is embedded in the inside of the measuring ruler 1, and the inside of the leakproof sleeve 31 is filled with a suspension 33 with a high density. The positioning shaft 32 is fixedly installed at the inner center of the leakproof sleeve 31. A pull rope 34 is fixedly installed on the top of the positioning shaft 32. A buoyancy block 35 is fixedly installed on the top of the pull rope 34. The buoyancy block 35 is always fixed on the outside of the positioning shaft 32 by the traction force of the pull rope 34. The buoyancy block 35 is made of a polystyrene foam ball with a large internal hollow buoyancy, and can float vertically in the suspension 33 by the buoyancy.

[0027] The top of the buoyancy block 35 is fixedly installed with an indicator needle 36, and the outer side of the leak-proof sleeve 31 is fixedly sleeved with a scale plate 37, and the scale plates 37 are arranged equidistantly on the outer side of the leak-proof sleeve 31. A plurality of positioning marks 38 are fixedly installed on the outer wall of the measuring ruler 1. The positioning marks 38 correspond to the reading positions on the scale plates 37 one by one. Therefore, when the scale plate 37 is tilted by an external force, the positioning marks 38 will be misaligned with the scale plate 37, and then the user can know that there is an error in the measurement of the measuring ruler 1. The interior of the leak-proof sleeve 31 is provided with a suspension 33, and the suspension 33 is made of a relatively high density. The buoyancy block 35 can be lifted by salt water. The buoyancy block 35 is movably arranged inside the suspension 33. A plurality of positioning marks 38 are arranged opposite to the scale plate 37. When the slope measuring device is used to measure the slope of the construction structure of the construction site, the base 8 at the lower end of the measuring ruler 1 is attached to the measuring surface, and then the buoyancy block 35 will float upward in the suspension 33. At this time, the indicator needle 36 will be driven by the vertically floating buoyancy block 35 to point to the angle reading on the scale plate 37. The reading is the slope value measured by the measuring ruler 1. The top of the indicator needle 36 is arranged opposite to the scale plate 37.

[0028] The leakproof sleeve 31 is made of a transparent plastic material surrounded by a circle of rubber. The leakproof sleeve 31 is embedded in the inside of the measuring ruler 1, and the inside of the leakproof sleeve 31 is filled with a suspension 33 with a relatively high density. The buoyancy block 35 is always fixed on the outside of the positioning shaft 32 by the traction force of the pull rope 34. The buoyancy block 35 is made of a polystyrene foam ball with a relatively high internal buoyancy, and can float vertically in the suspension 33 under the buoyancy. The positioning mark 38 corresponds to the reading position on the scale plate 37 one by one. Therefore, when the scale plate 37 is tilted by an external force, the positioning mark 38 will be misaligned with the scale plate 37, and then the user can know that there is an error in the measurement of the measuring ruler 1. The suspension 33 can be made of salt water with a relatively high density that can lift the buoyancy block 35.

[0029] When using the ramp measuring device to measure the slope of a construction structure at a construction site, the base 8 at the lower end of the measuring ruler 1 is attached to the measuring surface, and then the buoyancy block 35 will float upward in the suspension 33. At this time, the indicator needle 36 will be driven by the vertically floating buoyancy block 35 to point to the angle reading on the scale plate 37. The reading is the slope value measured by the measuring ruler 1. The liquid buoyancy is used to control the indicator needle to always maintain a vertical level for measurement, thereby minimizing the influence and interference of frictional resistance, thereby greatly improving the measurement accuracy of the ramp measuring device.

[0030] See also Figure 1-6 A measuring ruler flipping and folding structure 4 is provided at one end of the measuring ruler 1. The measuring ruler flipping and folding structure 4 includes a rotating pin 41, a connecting piece 42 and a fixing nail 43. A plurality of connecting pieces 42 are movably connected to the end of the measuring ruler 1. The fixing nail 43 is fixedly connected to the inside of the plurality of connecting pieces 42. The outer sides of the plurality of connecting pieces 42 are rotatably connected to the rotating pin 41. The plurality of connecting pieces 42 are fastened to the outer walls of the measuring ruler 1 and the front end plate 2 through the fixing nail 43. The front end plate 2 can be flipped and folded at the end of the measuring ruler 1 along the rotating pin 41. The other side of the plurality of connecting pieces 42 is movably connected to the front end plate 2. The ends of the plurality of fixing nails 43 are fixedly connected to the front end plate 2. The rear side of the front end plate 2 is rotatably connected to the measuring ruler 1.

[0031] The outer wall of the measuring ruler 1 is provided with a front end plate positioning and clamping structure 5, which includes a support seat 51, a convex block 52 and a sliding rod 55. The two sliding rods 55 are slidably connected to the inner wall of the measuring ruler 1. The ends of the two sliding rods 55 are fixedly installed with convex balls 53, and the rear sides of the two convex balls 53 are fixedly installed with springs 54. The two springs 54 are movably sleeved on the outer sides of the sliding rods 55. When the front end plate 2 is flipped and folded along the rotating pin 41, the support seat 52 will drive the front end convex block 52 to insert into the middle of the two sliding rods 55 on the outer wall of the measuring ruler 1. Grooves are provided on both sides of the convex block 52. When the convex block 52 just enters the inside of the two sliding rods 55, it will push the two sliding rods 55 to slide into the inside of the measuring ruler 1, and then the edge of the convex ball 53 will press The compression spring 54 contracts until the front of the convex ball 53 is aligned with the grooves on both sides of the protrusion 52. The spring 54 releases its elastic force to push the convex ball 53 to the outside of the protrusion 52 and get stuck. At this time, the front end plate 2 is folded up with the measuring ruler 1, reducing the volume of the slope measuring device for easy storage. At the same time, because the spring 54 pushes the convex ball 53 to form an elastic connection, the clamping force of the convex ball 53 on the protrusion 52 is not particularly large. Therefore, when the operator needs to use the measuring ruler 1, he only needs to use force to flip the front end plate 2 along the rotating pin 41. When the force is strong enough, the protrusion 52 can be pulled out. The support seat 51 is fixedly installed on the outer wall of the front end plate 2. The front end of the support seat 51 is fixedly connected with the protrusion 52, and the two sides of the protrusion 52 are movably connected to the front end of the convex ball 53.

[0032] First, the connecting piece 42 is fastened to the outer wall of the measuring ruler 1 and the front end plate 2 by the fixing nail 43, and the front end plate 2 can be turned and folded along the rotating pin 41 at the end of the measuring ruler 1. When the front end plate 2 is turned and folded along the rotating pin 41, the support seat 52 will drive the front end protrusion 52 to insert into the middle of the two sliding rods 55 on the outer wall of the measuring ruler 1. There are grooves on both sides of the protrusion 52. When the protrusion 52 just enters the inside of the two sliding rods 55, it will push the two sliding rods 55 to slide into the inside of the measuring ruler 1, and then the edge of the protrusion 53 will compress the spring 54 to contract until the front of the protrusion 53 is opposite to the position of the grooves on both sides of the protrusion 52, and the spring 54 will release the elastic force to push the protrusion 53 to the outside of the protrusion 52 and get stuck. At this time, the front end plate 2 is folded together with the measuring ruler 1, reducing the volume of the slope measuring device for easy removal and storage.

[0033] At the same time, because the spring 54 pushes the convex ball 53, which is an elastic connection, the clamping force of the convex ball 53 on the protrusion 52 is not particularly large. Therefore, when the operator needs to use the measuring ruler 1, he only needs to use force to flip the front end plate 2 along the rotating pin 41. When the force is strong enough, the protrusion 52 can be pulled out. The foldable and flippable structure is used to reduce the size of the slope measuring device and improve the practicability of the slope measuring device.

[0034] See also Figure 1-6Two limit plates 71 are fixedly connected to the inside of the front end plate 2, and a level tube 72 is fixedly installed on the inner side of the two limit plates 71. The limit plates 71 embed the level tube 72 into the inside of the front end plate 2. The level tube 72 adopts the internal level tube 72 structure of a slope measuring device with a comparative document patent number of "CN218411174U", which belongs to the existing technical means at this stage, and the specific working principle is omitted here. A grip groove 6 is fixedly opened on the inner side of the front end plate 2, and the grip groove 6 is designed to be a through hole with a certain inclination angle, which is convenient for the user to hold the measuring ruler 1 for measurement operations. The outer wall of the measuring ruler 1 is fixedly sleeved with multiple bases 8. The base 8 can use the existing base of a slope measuring device with a comparative document "CN218411174U", which can be horizontally fitted with the slope measurement surface of the building structure.

[0035] Working principle:

[0036] When using a slope measuring device to actually measure the slope of a building construction structure;

[0037] The slope measuring device can be folded for easy carrying;

[0038] First, the connecting piece 42 is fastened to the outer wall of the measuring ruler 1 and the front end plate 2 by the fixing nail 43, and the front end plate 2 can be turned and folded along the rotating pin 41 at the end of the measuring ruler 1. When the front end plate 2 is turned and folded along the rotating pin 41, the support seat 52 will drive the front end protrusion 52 to insert into the middle of the two sliding rods 55 on the outer wall of the measuring ruler 1. There are grooves on both sides of the protrusion 52. When the protrusion 52 just enters the inside of the two sliding rods 55, it will push the two sliding rods 55 to slide into the inside of the measuring ruler 1, and then the edge of the protrusion 53 will compress the spring 54 to shrink. The convex ball 53 is retracted until the front of the convex ball 53 is aligned with the grooves on both sides of the convex block 52, and the spring 54 releases its elastic force to push the convex ball 53 to the outside of the convex block 52 and get stuck. At this time, the front end plate 2 is folded up with the measuring ruler 1, reducing the volume of the slope measuring device for easy storage. At the same time, because the spring 54 pushes the convex ball 53 to form an elastic connection, the clamping force of the convex ball 53 on the convex block 52 is not particularly large. Therefore, when the operator needs to use the measuring ruler 1, he only needs to use force to flip the front end plate 2 along the rotating pin 41, and the convex block 52 can be pulled out when the force is strong enough.

[0039] Slope measurement device accurate measurement process:

[0040] First, the leakproof sleeve 31 is made of a transparent plastic material surrounded by a circle of rubber. The leakproof sleeve 31 is embedded in the inside of the measuring ruler 1, and the inside of the leakproof sleeve 31 is filled with a suspension 33 with a relatively high density. The buoyancy block 35 is always fixed on the outside of the positioning shaft 32 by the traction of the pull rope 34. The buoyancy block 35 is made of a polystyrene foam ball with a relatively high internal buoyancy, and can float vertically in the suspension 33 under the buoyancy. The positioning mark 38 corresponds to the reading position on the scale plate 37 one by one. Therefore, when the scale plate 37 is tilted by an external force, the positioning mark 38 will be misaligned with the scale plate 37, and then the user can know that there is an error in the measurement of the measuring ruler 1. The suspension 33 can be made of salt water with a relatively high density that can lift the buoyancy block 35.

[0041] When using the slope measuring device to measure the slope of the construction structure at a construction site, the base 8 at the lower end of the measuring ruler 1 is attached to the measuring surface, and then the buoyancy block 35 will float upward in the suspension 33. At this time, the indicator needle 36 will be driven by the vertically floating buoyancy block 35 to point to the angle reading on the scale plate 37. The reading is the slope value measured by the measuring ruler 1. The liquid buoyancy is used to control the indicator needle to always maintain a vertical level for measurement, thereby minimizing the influence and interference of friction resistance.

[0042] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A slope measuring device, comprising a measuring ruler (1), a front end plate (2) and a base (8), characterized in that: The inner side of the measuring ruler (1) is provided with a friction-reducing precise measurement structure (3), the friction-reducing precise measurement structure (3) comprising a leak-proof sleeve (31), a positioning shaft (32) and a positioning mark (38), the leak-proof sleeve (31) is fixedly mounted inside the measuring ruler (1), the positioning shaft (32) is fixedly mounted at the inner center of the leak-proof sleeve (31), a pull rope (34) is fixedly mounted on the top end of the positioning shaft (32), a buoyancy block (35) is fixedly mounted on the top end of the pull rope (34), an indicator needle (36) is fixedly mounted on the top end of the buoyancy block (35), a scale plate (37) is fixedly sleeved on the outer side of the leak-proof sleeve (31), a plurality of positioning marks (38) are fixedly mounted on the outer wall of the measuring ruler (1), a suspension (33) is provided inside the leak-proof sleeve (31), and the buoyancy block (35) is movably arranged inside the suspension (33).

2. A slope measuring device according to claim 1, characterized in that: The plurality of positioning marks (38) are arranged opposite to the scale plate (37), and the top end of the indicator needle (36) is arranged opposite to the scale plate (37).

3. A slope measuring device according to claim 1, characterized in that: One end of the measuring ruler (1) is provided with a measuring ruler flipping and folding structure (4); The measuring ruler flipping and folding structure (4) comprises a rotating pin (41), a connecting piece (42) and a fixing pin (43); The plurality of connecting pieces (42) are movably connected to the ends of the measuring ruler (1); the interiors of the plurality of connecting pieces (42) are fixedly connected with fixing nails (43); the exteriors of the plurality of connecting pieces (42) are rotatably connected with rotating pins (41); the other sides of the plurality of connecting pieces (42) are movably connected with the front end plate (2); the ends of the plurality of fixing nails (43) are fixedly connected with the front end plate (2); and the rear side of the front end plate (2) is rotatably connected with the measuring ruler (1).

4. A slope measuring device according to claim 1, characterized in that: The outer wall of the measuring ruler (1) is provided with a front end plate positioning clamping structure (5); The front end plate positioning clamping structure (5) comprises a support seat (51), a protrusion (52) and a sliding rod (55); The two sliding rods (55) are slidably connected to the inner wall of the measuring ruler (1); convex balls (53) are fixedly installed at the ends of the two sliding rods (55); springs (54) are fixedly installed at the rear sides of the two convex balls (53); the two springs (54) are movably sleeved on the outer sides of the sliding rods (55); the support seat (51) is fixedly installed on the outer wall of the front end plate (2); a convex block (52) is fixedly connected to the front end of the support seat (51); and two sides of the convex block (52) are movably connected to the front end of the convex ball (53).

5. A slope measuring device according to claim 1, characterized in that: Two limit plates (71) are fixedly connected to the interior of the front end plate (2), and level tubes (72) are fixedly installed on the inner sides of the two limit plates (71).

6. A slope measuring device according to claim 1, characterized in that: A grip groove (6) is fixedly provided on the inner side of the front end plate (2), and a plurality of bases (8) are fixedly sleeved on the outer wall of the measuring ruler (1).

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