Foldable level gauge

Abstract

The utility model discloses a foldable level gauge and relates to the technical field of level gauges. The leveling instrument comprises a base, a lifting mechanism is arranged at the top end of the base, a leveling instrument body is arranged on the outer surface of one side of the lifting mechanism, folding mechanisms are arranged on the outer surfaces of the three sides of the base, a center foot is fixedly arranged in the middle of the bottom end of the base, and each folding mechanism comprises a first supporting leg. The outer surface of the first supporting leg is sleeved with a second lantern ring, a rotating piece is fixedly installed at the top end of the first supporting leg, a supporting foot is fixedly installed at the bottom end of the first supporting leg, a rotating pin is arranged in the pressing groove, and the two ends of the rotating pin are jointly connected with a rotating shaft in a penetrating mode. According to the leveling instrument, the lifting mechanism and the folding mechanism are arranged, so that the effects of conveniently adjusting the supporting height and the measuring precision of the leveling instrument are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of levels, in particular to a foldable level. Background Art

[0002] A level is an instrument that establishes 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. According to the structure, it is divided into micro-tilt level, automatic level, laser level and digital level (also known as electronic level). According to the accuracy, it is divided into precision level and ordinary level. The level can be used for national first-class leveling, earthquake leveling, construction engineering measurement, deformation and settlement monitoring, mining measurement, large-scale machine installation, tool processing measurement and precision engineering measurement. The continuous development and improvement of leveling technology has provided effective tools and means for the application and research of deformation monitoring. Through the geometric analysis of engineering deformation and the physical interpretation of deformation, it provides more rigorous monitoring data for engineering construction, and scientifically, accurately and timely analyzes and predicts the deformation of engineering and engineering structures, which is of great significance to the construction and operation management of engineering projects.

[0003] However, when most levels are used for measurement, it is often necessary to measure planes at different heights, which makes it difficult to center the level. When installing a fixed level, the operator may be unable to support and fix the level due to environmental restrictions, resulting in inconvenience in movement and inability to keep the instrument stable, resulting in large errors in the measured data. The level cannot be fine-tuned to a certain height according to actual conditions, making the measured data inaccurate. Utility Model Content

[0004] In order to solve the problem that the level is inconvenient to support and fix and the level has low accuracy; the purpose of the utility model is to provide a foldable level.

[0005] The foldable level comprises a first support leg, a second support leg being movably sleeved on the inner surface of the first support leg, a second ring being sleeved on the outer surface of the first support leg, a buckle being fixedly sleeved on the outer surface of the lower portion of the first support leg, a rotating member being fixedly installed on the top of the first support leg, a supporting foot being fixedly installed on the bottom end of the first support leg, the rotating member being rotatably connected to the inner wall of the base, a through-type pressing groove being provided at one end of the buckle, a rotating pin being provided inside the pressing groove, two ends of the rotating pin being jointly interspersed and connected with a rotating shaft, two ends of the rotating shaft being rotatably connected to the inner walls of both sides of the pressing groove, and a clamping pin being interspersed and connected to the inner surface of one side of the buckle.

[0006] Preferably, the lifting mechanism includes a support column, the bottom end of the support column is fixedly connected with a connecting shaft, the outer surface of the connecting shaft is rotatably connected to the top of the base, the outer surface of the support column is sleeved with a sliding sleeve, the inner walls on both sides of the sliding sleeve are commonly fixedly connected with a U-shaped plate, the top of the U-shaped plate is fixedly installed with a bottom plate, the top of the bottom plate is fixedly connected to the bottom end of the level body, the outer surface of one side of the support column is fixedly connected with a rack, the outer surface of the rack is meshed with a worm gear, both ends of the worm gear penetrate the U-shaped plate and are rotatably connected to the sliding sleeve, the outer surface of the worm wheel is meshed with a worm, one end of the worm is fixedly connected with a transmission rod, the transmission rod penetrates the U-shaped plate, and one end of the transmission rod is fixedly connected to a turntable.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1. The utility model provides a folding mechanism to make the level instrument more convenient to carry. During operation, it can realize relatively quick support according to measurement targets of different heights, so that the level instrument can maintain a horizontal state by adjusting the support height to meet different measurement needs.

[0009] 2. The new type can adjust the secondary horizontal accuracy of the level through the lifting mechanism, making the level more flexible when measuring height and ensuring the reliability of the measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the folding mechanism structure of the utility model.

[0013] Figure 3 This is a schematic diagram of the buckle structure of the utility model.

[0014] Figure 4 This is a schematic diagram of the lifting mechanism structure of the utility model.

[0015] Figure 5 It is a cross-sectional view of the lifting mechanism of the utility model.

[0016] In the figure: 1. base; 2. lifting mechanism; 3. level body; 4. folding mechanism; 5. center foot; 51. first ring; 52. connecting rod; 40. second ring; 41. first supporting leg; 42. second supporting leg; 43. buckle; 44. supporting foot; 45. rotating part; 432. pressing groove; 433. rotating pin; 434. rotating shaft; 435. clamping pin; 21. supporting column; 22. connecting shaft; 23. sliding sleeve; 24. U-shaped plate; 25. bottom plate; 26. rack; 27. worm gear; 28. worm; 29. ​​transmission rod; 20. turntable. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Embodiment 1: Figure 1-5As shown, the utility model provides a foldable level, including a base 1, a lifting mechanism 2 is provided at the top of the base 1, a level body 3 is provided on one side outer surface of the lifting mechanism 2, folding mechanisms 4 are provided on the three side outer surfaces of the base 1, a center foot 5 is fixedly provided at the middle of the bottom end of the base 1, the folding mechanism 4 includes a first supporting leg 41, a second supporting leg 42 is movably sleeved on the inner surface of the first supporting leg 41, a second ring 40 is sleeved on the outer surface of the first supporting leg 41, and the first supporting leg 41 is provided with a second support leg 42. A buckle 43 is fixedly sleeved on the outer surface of the lower part of the leg 41, a rotating member 45 is fixedly installed on the top of the first supporting leg 41, a support foot 44 is fixedly installed on the bottom end of the first supporting leg 41, the rotating member 45 is rotatably connected to the inner wall of the base 1, a through-type pressing groove 432 is opened at one end of the buckle 43, a rotating pin 433 is arranged inside the pressing groove 432, and a rotating shaft 434 is inserted and connected at both ends of the rotating pin 433, and the two ends of the rotating shaft 434 are rotatably connected to the inner walls of both sides of the pressing groove 432. A clamping pin 435 is inserted and connected to the inner surface of one side of the buckle 43. When it is necessary to operate the base 1, the first support leg 41 of the three folding mechanisms 4 is rotated and opened in three directions of the base 1 through the rotating member 45. When opening, the first ring 51 connected by the connecting rod 52 slides downward on the outer surface of the central foot 5, so that the three folding mechanisms 4 are limited. When the three first support legs 41 are opened to a certain angle, the rotating pin 433 in the buckle 43 is moved to slide the second support leg 42 downward. When the second support leg 42 reaches a certain height, the rotating pin 433 is rotated again. The rotating rotating pin 433 rotates through the eccentric rotating shaft 434 so that one end of the rotating pin 433 rotates through the pressing groove 432 to continuously press the clamping pin 435, so that the clamping pin 435 presses the second support leg 42 through the through groove at one end of the first support leg 41, so that the second support leg 42 is locked and fixed, thereby achieving the purpose of folding and raising the support height.

[0019] The lifting mechanism 2 includes a support column 21, the bottom end of the support column 21 is fixedly connected to a connecting shaft 22, the outer surface of the connecting shaft 22 is rotatably connected to the top of the base 1, the outer surface of the support column 21 is sleeved with a sliding sleeve 23, the inner walls of both sides of the sliding sleeve 23 are commonly fixedly connected to a U-shaped plate 24, the top of the U-shaped plate 24 is fixedly installed with a bottom plate 25, the top of the bottom plate 25 is fixedly connected to the bottom end of the level body 3, a rack 26 is fixedly connected to the outer surface of one side of the support column 21, the outer surface of the rack 26 is meshedly connected to a worm gear 27, both ends of the worm gear 27 pass through the U-shaped plate 24 and are rotatably connected to the sliding sleeve 23, the outer surface of the worm gear 27 is meshedly connected to a worm 28, and one end of the worm 28 is fixedly connected to a transmission Rod 29, transmission rod 29 passes through the U-shaped plate 24, one end of the transmission rod 29 is fixedly connected to the turntable 20, and the base 1 is fixed by the bottom plate 25 in the lifting mechanism 2. When the horizontal height needs to be adjusted, the turntable 20 in the lifting mechanism 2 is rotated, so that the turntable 20 drives the worm 28 through the transmission rod 29, and the rotating worm 28 drives the worm wheel 27 to rotate, so that the worm wheel 27 climbs or descends at the tooth groove of the rack 26, and the sliding sleeves 23 connected at both ends of the worm wheel 27 slide on the outer surface of the support column 21. The U-shaped plate 24 and the sliding sleeve 23 support the worm 28 and the worm wheel 27. The support column 21 can be rotated through the connecting shaft 22, thereby achieving the purpose of adjusting the base 1.

[0020] The outer surface of the center foot 5 is sleeved with a first ring 51, and the outer surface of the first ring 51 is rotatably connected with three connecting rods 52, and one end of the three connecting rods 52 is rotatably connected to the three second rings 40. The center foot 5 and the support column 21 are on the same vertical horizontal line. The purpose is to facilitate the connection between the three first supporting legs 41 through the three second rings 40 and the first ring 51 when opening, so that the three first supporting legs 41 can be opened and closed at the same angle. The center foot 5 ensures that the three supporting legs 44 are always on the same horizontal plane.

[0021] The three folding mechanisms 4 are distributed in a circular array, the first supporting leg 41 is in a central control shape, the first supporting leg 41 and the second supporting leg 42 have the same length, and a through groove for cooperating with a clamping pin 435 is opened on one side of the first supporting leg 41. The first supporting leg 41 and the second supporting leg 42 of the same length allow the second supporting leg 42 to be retracted and extended inside the first supporting leg 41, and the through groove on one side of the first supporting leg 41 allows the buckle 43 to clamp and limit the second supporting leg 42 inside the first supporting leg 41.

[0022] The rotating shaft 434 is located at the eccentric position at both ends of the rotating pin 433. The clamping pin 435 is an elliptical cylinder, and the outer surface of one end of the clamping pin 435 slides and fits with the outer surface of the rotating pin 433. The eccentric rotating shaft 434 allows the rotating pin 433 to extend one end of the rotating pin 433 out of the pressing groove 432 through rotation, and clamps one end of the clamping pin 435, so that the other end of the clamping pin 435 clamps the second support leg 42.

[0023] Working principle: When the base 1 needs to be operated, the first support legs 41 of the three folding mechanisms 4 are rotated and opened in three directions of the base 1 through the rotating member 45. When opening, the first ring 51 connected by the connecting rod 52 slides downward on the outer surface of the central foot 5, so that the three folding mechanisms 4 are limited;

[0024] When the three first supporting legs 41 are opened to a certain angle, the rotating pin 433 in the buckle 43 is pushed to slide the second supporting leg 42 downward. When the second supporting leg 42 reaches a certain height, the rotating pin 433 is rotated again. The rotating rotating pin 433 rotates through the eccentric rotating shaft 434 so that one end of the rotating pin 433 rotates through the pressing groove 432 to continuously press the pressing pin 435, so that the pressing pin 435 presses the second supporting leg 42 through the through groove at one end of the first supporting leg 41, so that the second supporting leg 42 is locked and fixed, thereby achieving the purpose of folding and increasing the supporting height;

[0025] Secondly, the base 1 is fixed by the bottom plate 25 in the lifting mechanism 2. When the horizontal height needs to be adjusted, the turntable 20 in the lifting mechanism 2 is rotated so that the turntable 20 drives the worm 28 through the transmission rod 29. The rotating worm 28 drives the worm wheel 27 to rotate, so that the worm wheel 27 climbs or descends at the tooth groove of the rack 26. The sliding sleeves 23 connected at both ends of the worm wheel 27 slide on the outer surface of the support column 21. The U-shaped plate 24 and the sliding sleeve 23 support the worm 28 and the worm wheel 27. The support column 21 can be rotated through the connecting shaft 22, thereby achieving the purpose of adjusting the base 1.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A foldable level, comprising a base (1), characterized in that: A lifting mechanism (2) is provided at the top of the base (1); a level body (3) is provided on one side outer surface of the lifting mechanism (2); folding mechanisms (4) are provided on three side outer surfaces of the base (1); and a center foot (5) is fixedly provided at the middle of the bottom end of the base (1); The folding mechanism (4) comprises a first supporting leg (41), the inner surface of the first supporting leg (41) being movably sleeved with the second supporting leg (42), the outer surface of the first supporting leg (41) being sleeved with the second sleeve ring (40), the lower outer surface of the first supporting leg (41) being fixedly sleeved with a buckle (43), the top end of the first supporting leg (41) being fixedly mounted with a rotating member (45), the bottom end of the first supporting leg (41) being fixedly mounted with a supporting foot (44), the rotating member (45) being rotatably connected to the inner wall of the base (1), one end of the buckle (43) being provided with a through-type pressing groove (432), the interior of the pressing groove (432) being provided with a rotating pin (433), the two ends of the rotating pin (433) being interpenetratingly connected with a rotating shaft (434), the two ends of the rotating shaft (434) being rotatably connected to the inner walls of both sides of the pressing groove (432), and the inner surface of one side of the buckle (43) being interpenetratingly connected with a pressing pin (435).

2. A foldable level as claimed in claim 1, characterized in that: The lifting mechanism (2) comprises a support column (21), the bottom end of the support column (21) is fixedly connected to a connecting shaft (22), the outer surface of the connecting shaft (22) is rotatably connected to the top of the base (1), the outer surface of the support column (21) is sleeved with a sliding sleeve (23), the inner walls on both sides of the sliding sleeve (23) are commonly fixedly connected to a U-shaped plate (24), the top end of the U-shaped plate (24) is fixedly mounted with a bottom plate (25), the top end of the bottom plate (25) is fixedly connected to the bottom end of the level instrument body (3), A rack (26) is fixedly connected to the outer surface of one side of the support column (21); a worm gear (27) is meshedly connected to the outer surface of the rack gear (26); both ends of the worm gear (27) penetrate the U-shaped plate (24) and are rotatably connected to the sliding sleeve (23); a worm (28) is meshedly connected to the outer surface of the worm gear (27); one end of the worm gear (28) is fixedly connected to a transmission rod (29); the transmission rod (29) penetrates the U-shaped plate (24); and one end of the transmission rod (29) is fixedly connected to the rotating disk (20).

3. A foldable level as claimed in claim 1, characterized in that: The outer surface of the central foot (5) is sleeved with a first sleeve ring (51), and the outer surface of the first sleeve ring (51) is rotatably connected to three connecting rods (52), and one end of the three connecting rods (52) is rotatably connected to three second sleeve rings (40).

4. A foldable level as claimed in claim 1, characterized in that: The first supporting leg (41) is hollow, the first supporting leg (41) and the second supporting leg (42) are of the same length, and a through slot for cooperating with a pressing pin (435) is provided on one side of the first supporting leg (41).

5. A foldable level as claimed in claim 1, characterized in that: The three folding mechanisms (4) are distributed in a ring array.

6. A foldable level as claimed in claim 1, characterized in that: The central foot (5) and the support column (21) are on the same vertical horizontal line.

7. A foldable level as claimed in claim 2, characterized in that: The rotating shaft (434) is located at eccentric positions at both ends of the rotating pin (433).

8. A foldable level as claimed in claim 2, characterized in that: The clamping pin (435) is in the shape of an elliptical cylinder, and the outer surface of one end of the clamping pin (435) is slidably fitted with the outer surface of the rotating pin (433).

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