CN220061305U

CN220061305U - Manual leveling support of surveying instrument

Info

Publication number: CN220061305U
Application number: CN202223102424.8U
Authority: CN
Inventors: 王醒
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-11-21
Anticipated expiration: 2032-11-22

Abstract

The utility model provides a manual leveling bracket for a surveying instrument, which comprises a mounting platform and three supporting legs, and is characterized in that a sliding shaft is fixed at the geometric center position of the bottom surface of the mounting platform, the sliding shaft is perpendicular to the plane of the upper surface of the mounting platform, a slidable synchronous sliding ring is sleeved on the sliding shaft, three hinges are further arranged on the bottom surface of the mounting platform, the three hinges are distributed symmetrically in a circumferential manner by taking the central axis of the sliding shaft as the center, each supporting leg is hinged to one hinge, and the supporting legs are hinged with the synchronous sliding ring through a horizontal adjusting rod; the mounting platform can be adjusted to be horizontal by manually screwing the screw threads after the support is supported, the overall outline keeps the structure of the conventional support, no additional equipment is needed, and the whole portable support is more convenient to carry.

Description

Manual leveling support of surveying instrument

Technical Field

The utility model belongs to the technical field of engineering measurement, and particularly relates to a manual leveling bracket for a surveying instrument.

Background

The surveying instrument is the most widely used equipment in engineering measurement, also called total station, it is all installed and fixed a position through the support in the use, be limited by the application environment topography complexity change, support mounted position often does not possess level ground, install the total station after setting up the support in survey place, then need to adjust the level operation before the total station uses, the total station itself possesses the level adjustment function, but if all survey and drawing before or after slightly changing the total station position all need first to operate the total station level adjustment, the complexity of survey work has certainly increased, some surveying instrument supports in the prior art possess the level adjustment function, provide a horizontal mounting platform for the total station, for example, patent document CN111060084A discloses a surveying instrument tripod quick leveling method, it is at support leg internally mounted gasbag, then utilize the air inflation equipment to adjust gasbag pressure and change landing leg length in order to adjust the surveying instrument mount to the horizontality, but the control accuracy of atmospheric pressure is relatively lower, adjust the operation is difficult to control, and need additionally carry air inflation equipment.

Disclosure of Invention

Based on the current state of the art, the utility model aims to provide a manual leveling bracket for a surveying instrument, which can adjust a mounting platform to be horizontal by manually screwing a screw thread after the bracket is supported, and the whole contour keeps the structure of a conventional bracket, so that additional equipment is not needed, and the whole leveling bracket is more convenient to carry.

The technical scheme adopted by the utility model is as follows: the manual leveling bracket for the surveying instrument comprises a mounting platform and three supporting legs and is characterized in that a sliding shaft is fixed at the geometric center position of the bottom surface of the mounting platform and is perpendicular to the plane where the upper surface of the mounting platform is located, a slidable synchronous sliding ring is sleeved on the sliding shaft, three hinges are further arranged on the bottom surface of the mounting platform and are distributed symmetrically in a circumferential mode with the central axis of the sliding shaft as the center, each supporting leg is hinged to one hinge, and the supporting legs are hinged to the synchronous sliding ring through a horizontal adjusting rod;

the bubble type level is characterized in that two adjacent side surfaces of the mounting platform are respectively provided with a bubble type level, and specifically, two adjacent side surfaces of the mounting platform are respectively provided with an embedded groove, and the bubble type level is arranged in the embedded grooves.

The horizontal adjusting rod comprises a threaded cylinder, a first hinge screw rod and a second hinge screw rod, wherein the threaded cylinder is of a tube shell structure with internal threads, the first hinge screw rod and the second hinge screw rod are of a short screw rod structure with one end being provided with a hinge joint, the screws of the first hinge screw rod and the second hinge screw rod are screwed into the threaded cylinder in a threaded fit manner, and when the first hinge screw rod and the second hinge screw rod do not rotate, the threaded cylinder is screwed, so that the first hinge screw rod and the second hinge screw rod can retract or stretch out relative to the threaded cylinder synchronously.

The landing legs are formed by sleeving a first landing leg and a second landing leg, the first landing leg is of a sleeve type structure, the second landing leg can be inserted into the first landing leg relatively fixedly, and the insertion depth can be adjusted to adjust the whole length of the landing leg formed by the first landing leg and the second landing leg. The upper most end of the first supporting leg is provided with a first hinge seat, the first hinge seat is hinged with the mounting platform, the lower most end of the first supporting leg is provided with a locking part, the locking part is used for fixing the relative position of the first supporting leg and the second supporting leg, the inner side of the first supporting leg is further provided with a second hinge seat adjacent to the locking part, and the second hinge seat is used for hinged mounting of a horizontal adjusting rod. The specific adjusting mode of the length of the supporting leg can be that a plurality of positioning pin holes are uniformly formed in the second supporting leg, and the locking part is in a pin hole and pin shaft structure.

Further, the internal thread inside the threaded cylinder is divided into two sections, and the two sections of internal threads are distributed in a bilateral symmetry mode at the axial midpoint of the threaded cylinder, or the internal thread inside the threaded cylinder is set to be a positive and negative thread.

Further, the horizontal adjusting rod further comprises a spring, wherein the spring is located inside the threaded cylinder, and two ends of the spring are respectively abutted between the screw ends of the first hinge screw and the screw ends of the second hinge screw.

The utility model has the technical advantages that:

1. the levelness of the mounting platform is adjusted by screwing the threaded cylinder, and the small thread degree can be selected to increase the adjustment precision, so that the mounting platform can quickly reach a horizontal state; no additional leveling matching parts are needed, so that the advantage of convenience in carrying the triangular bracket is maintained;

2. compared with a support with a traditional structure, the improved position is less, only two outer transparent bubble type level instruments are added, the connecting rod structure between the supporting legs and the middle shaft is changed, and the required economic cost for improvement is lower.

Drawings

FIG. 1 is a schematic diagram of the core part structure of a manual leveling bracket of a surveying instrument according to the present utility model;

FIG. 2 is a schematic diagram of the mounting relationship of the mounting platform and the adjustment assembly of the manual leveling bracket of the surveying instrument of the present utility model;

FIG. 3 is a schematic illustration of an adjustable leg configuration of a manual leveling bracket of a surveying instrument according to the present utility model;

FIG. 4 is a schematic view of the structure of a horizontal adjustment rod of the manual leveling bracket of the surveying instrument of the present utility model;

FIG. 5 is a schematic view showing the disassembly of the structure of the horizontal adjusting rod of the manual leveling bracket of the surveying instrument;

in the figure: 1. the device comprises a first supporting leg, a mounting platform, an embedded groove, a synchronous sliding ring, a horizontal adjusting rod and a second supporting leg, wherein the first supporting leg is 2, the mounting platform is 3, the embedded groove is 4, the synchronous sliding ring is 5, and the second supporting leg is 6; 1-1 parts of first comparative seats, 1-2 parts of second hinged seats, 1-3 parts of locking parts; 5-1 parts of threaded cylinder, 5-2 parts of first hinge screw rod, 5-3 parts of second hinge screw rod, 5-4 parts of spring.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or imply that the devices or elements being referred to must be oriented or operated in a particular orientation and are not intended to be limiting. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Fig. 1 is a schematic diagram of a core part structure of a manual leveling bracket of a surveying instrument, a main body structure of the manual leveling bracket is still an unfolding and folding type tripod, an installation platform 2 for installing a total station is arranged at the top end of the tripod, three supporting legs are hinged to the bottom surface of the installation platform 2, the positioning and supporting functions of the whole bracket are achieved through the three supporting legs, a sliding shaft is fixedly connected to the center of the bottom surface of the installation platform 2 and is perpendicular to a plane where the upper surface of the installation platform 2 is located, a slidable synchronous sliding ring 4 is sleeved on the sliding shaft, the supporting legs are hinged to the synchronous sliding ring 4 through horizontal adjusting rods 5, and fig. 2 is a schematic diagram of installation relation between the installation platform and an adjusting component of the manual leveling bracket of the surveying instrument, and the synchronous sliding ring 4 can limit synchronous unfolding or folding of the three supporting legs when sliding along the sliding shaft, see fig. 1-2.

Fig. 3 is a schematic diagram of an adjustable support leg structure of the manual leveling bracket of the surveying instrument, wherein the support legs are respectively formed by sleeving a first support leg 1 and a second support leg 6, the first support leg 1 is of a sleeve type structure, a plurality of positioning pin holes are uniformly distributed on the second support leg 6, and the second support leg 6 can be inserted into the first support leg 1 and fixedly locked together through the positioning pin holes so as to adjust the length of the support legs; referring to fig. 3, the uppermost end of the first leg 1 is provided with a first hinge support 1-1, the first hinge support 1-1 is hinged with a hinge joint on the bottom surface of the mounting platform 2, the lowermost end of the first leg 1 is provided with a locking part 1-3, after the second leg 6 is well adjusted to be inserted into the length of the first leg 1, the relative positions of the two parts are fixed through the locking part 1-3, preferably, the locking part 1-3 is in a pin hole and pin shaft structure, obviously, the locking part can also be provided with a clip structure or a threaded screw structure, the position, adjacent to the locking part 1-3, of the inner side of the first leg 1 is also provided with a second hinge support 1-2, and the second hinge support 1-2 is used for hinging and mounting a horizontal adjusting rod 5.

The structure of the horizontal adjusting rod 5 is described in detail below with reference to fig. 4 and 5, wherein fig. 4 is a schematic diagram of the structure of the horizontal adjusting rod of the manual leveling bracket of the surveying instrument, fig. 5 is a schematic diagram of the structure of the horizontal adjusting rod of the manual leveling bracket of the surveying instrument, the horizontal adjusting rod 5 comprises a threaded cylinder 5-1, a first hinging screw 5-2 and a second hinging screw 5-3, the threaded cylinder 5-1 is a shell structure with internal threads, the first hinging screw 5-2 and the second hinging screw 5-3 are short screw structures with one ends provided with hinging heads, and the screws of the first hinging screw 5-2 and the second hinging screw 5-3 are screwed in the threaded cylinder 5-1 in a threaded fit manner; the internal thread inside the threaded cylinder 5-1 is divided into two sections, the two sections of internal threads are distributed in a bilateral symmetry manner at the axial middle point of the threaded cylinder 5-1, or the internal threads inside the threaded cylinder 5-1 are positive and negative threads, when the threaded cylinder 5-1 is rotated while the first hinged screw 5-2 and the second hinged screw 5-3 do not rotate, the first hinged screw 5-2 and the second hinged screw 5-3 simultaneously extend into the threaded cylinder 5-1 under the threaded fit to shorten the integral length of the horizontal adjusting rod 5, or the first hinged screw 5-2 and the second hinged screw 5-3 simultaneously extend out of the threaded cylinder 5-1 to prolong the integral length of the horizontal adjusting rod 5. Referring to fig. 5, the level adjusting lever 5 further includes a spring 5-4, the spring 5-4 is located inside the threaded cylinder 5-1, two ends of the spring are respectively abutted between the screw ends of the first hinge screw 5-2 and the second hinge screw 5-3, and the spring 5-4 is a weak elastic spring in a compressed state, so as to increase the structural overall stability of the level adjusting lever 5.

In order to cooperate with the leveling function, referring to fig. 1 and 2, two adjacent side surfaces of the mounting platform 2 are respectively provided with an embedding groove 3, the inside of the embedding groove 3 is embedded or adhered with the bubble type level meter, when the bracket is used, three supporting legs are unfolded to support and position the mounting platform 2, the upper surface of the mounting platform 2 cannot be enabled to be in a horizontal plane due to the difference of the pricking depths and the unfolding amplitudes of the three supporting legs, therefore, after the pricking positions of the three supporting legs are fixed, the threaded cylinders 5-1 of the leveling rod 5 are screwed, the length of the leveling rod 5 is changed, so that the supporting legs shake slightly relative to the pricking positions, the angle between the leveling rod and the mounting platform 2 is adjusted, and the levelness of the bubble type level meter is sequentially adjusted by screwing different threaded cylinders 5-1 until the two bubble type level meters are all adjusted to be in a horizontal state, and at the moment, the mounting platform 2 is also adjusted to be in a horizontal state.

Referring to fig. 3, a thread section is further provided at a position of the leg adjacent to the pricking tip, and a limit circular plate is screwed on the thread section, after the leg is pricked in soft terrain, the height of the limit circular plate is adjusted by screwing, so that the limit circular plate is positioned at the uppermost end of the pricking depth of the leg to contact the ground, and the contact area is increased to prevent the leg from continuously sinking.

While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover modifications or variations of the equivalent structures or equivalent processes, which may be accomplished by those skilled in the art without undue effort based on the teachings herein, or by direct or indirect application to other related arts, while remaining within the scope of the present utility model.

Claims

1. The manual leveling bracket for the surveying instrument comprises a mounting platform and three supporting legs and is characterized in that a sliding shaft is fixed at the geometric center position of the bottom surface of the mounting platform and is perpendicular to the plane where the upper surface of the mounting platform is located, a slidable synchronous sliding ring is sleeved on the sliding shaft, three hinges are further arranged on the bottom surface of the mounting platform and are distributed symmetrically in a circumferential mode with the central axis of the sliding shaft as the center, each supporting leg is hinged to one hinge, and the supporting legs are hinged to the synchronous sliding ring through a horizontal adjusting rod;

two adjacent side surfaces of the mounting platform are respectively provided with a bubble type level;

2. The manual leveling bracket of a surveying instrument according to claim 1, wherein the legs are each composed of a first leg and a second leg, the first leg is of a sleeve-type structure, the second leg is relatively fixedly inserted into the first leg, and the insertion depth is adjustable to adjust the overall length of the leg composed of the first leg and the second leg.

3. The manual leveling bracket of a surveying instrument according to claim 2, wherein a first hinge seat is arranged at the uppermost end of the first supporting leg, the first hinge seat is hinged with the mounting platform, a locking part is arranged at the lowermost end of the first supporting leg, the locking part is used for fixing the relative position of the first supporting leg and the second supporting leg, a second hinge seat is further arranged at the inner side of the first supporting leg adjacent to the locking part, and the second hinge seat is used for hinged mounting of the level adjusting rod.

4. The manual leveling bracket for a surveying instrument according to claim 3, wherein the second supporting leg is uniformly provided with a plurality of positioning pin holes, and the locking part is in a pin hole and pin shaft structure.

5. The manual leveling bracket for a surveying instrument according to one of claims 1 to 4, wherein the internal thread inside the threaded cylinder is divided into two sections, and the two sections of internal threads are distributed in bilateral symmetry with a midpoint in an axial direction of the threaded cylinder.

6. The manual leveling bracket of a surveying instrument of any one of claims 1-4, wherein the level adjustment rod further comprises a spring positioned within the threaded barrel and having opposite ends respectively abutting between the screw ends of the first and second hinge screws.

7. The manual leveling bracket for a surveying instrument according to any one of claims 1 to 4, wherein a thread section is further arranged on the supporting leg at a position close to the pricking tip, and a limit circular plate is screwed on the thread section.

8. The manual leveling bracket for a surveying instrument according to claim 1, wherein each of two adjacent side surfaces of the mounting platform is provided with an embedded groove, and the bubble level is mounted in the embedded grooves.