CN213840325U

CN213840325U - Theodolite tripod

Info

Publication number: CN213840325U
Application number: CN202022316792.7U
Authority: CN
Inventors: 刘长征
Original assignee: Hangzhou Yihe Hydropower Installation Engineering Co ltd
Current assignee: Xiangyang Planning Geographic Information Center
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-07-30
Anticipated expiration: 2030-10-16

Abstract

A theodolite tripod comprises a base mounting plate, a supporting leg connecting plate and three supporting legs, wherein a limiting lifting assembly is fixedly connected below the base mounting plate, the limiting lifting assembly is rotatably connected with the supporting leg connecting plate, and the base mounting plate and the supporting leg connecting plate are rotatably connected through the limiting lifting assembly; the support legs comprise two rotating rods which rotate synchronously, support legs and a telescopic connecting sleeve, the telescopic connecting sleeve is sleeved on the outer surfaces of one ends of the rotating rods and the support legs, the support legs are attached to the middle of the two rotating rods which rotate synchronously, and the support legs and the rotating rods are movably connected through the telescopic connecting sleeve; the bottom ends of the supporting legs are provided with state switching assemblies, and the state switching assemblies can convert the bottoms of the supporting legs into wheel shafts to slide and move, so that the problem that the tripod is difficult to carry is solved; the middle area surrounded by the three support legs is provided with a synchronous lifting device which is fixedly connected with the upper ends of the support legs and can control the three support legs to synchronously lift.

Description

Theodolite tripod

Technical Field

The utility model relates to an engineering measuring equipment technical field, concretely relates to theodolite tripod.

Background

The theodolite is a measuring instrument for measuring horizontal angles and vertical angles designed according to the angle measuring principle and is divided into an optical theodolite and an electronic theodolite; at present the measuring instrument that uses in civil engineering survey mainly is the optics theodolite, and the optics theodolite need adopt the tripod as the support when accomplishing survey and drawing work usually, but two problems can be met when using to current theodolite tripod: firstly, due to the material and the volume of the tripod, the weight of the tripod is too heavy, and when surveying and mapping are carried out outdoors, a lot of physical power of surveying and mapping personnel, particularly mountain environments, can be consumed by carrying the theodolite by manpower in many geographic environments, so that the surveying and mapping personnel are difficult to change surveying and mapping places for many times to carry out surveying and mapping work, and the data are not accurate enough; secondly, when surveying personnel leveling the height of the tripod before measurement work, because three supporting legs need to be adjusted in sequence, the problem that the variable quantity of the adjustment of the three supporting legs is possibly inconsistent exists, the three supporting legs can only reach the same height seen by naked eyes, but the distance is accurate and the like, and a certain degree of error exists, so that the theodolite mounting seat is inclined to a certain degree and cannot be accurately leveled, repeated adjustment is needed, the trouble is caused, and the accuracy of subsequent theodolite surveying and mapping is also influenced.

For example, chinese patent document discloses a theodolite tripod [ application No.: CN201220080566.6], including: the theodolite mounting platform is divided into an upper layer platform and a lower layer platform, theodolite positioning holes are correspondingly formed in the central positions of the two platforms, three equally-arranged height adjusting pieces are connected between the two platforms, the lower layer platform is connected with the three support legs, and a circular level is mounted on the upper layer platform; the height adjusting piece is a foot screw; a groove is formed in the upper-layer platform, a circular level gauge is installed in the groove, and the depth of the groove is larger than the thickness of the circular level gauge. According to the theodolite tripod, the reason that the tripod is not easy to level is not grasped for improvement, only the detection device is additionally arranged for detecting whether the tripod is leveled, and the phenomenon that the theodolite generates measurement errors due to the fact that the tripod is not leveled is prevented, and the problems are not fundamentally solved.

Aiming at the defects, the theodolite tripod is needed, not only can three support legs of the tripod be leveled synchronously, but also the problem that the theodolite mounting seat is inclined to a certain degree and cannot be leveled accurately due to inconsistent adjustment of the three support legs is solved, and the portable movement of the theodolite tripod can be realized, so that the difficult problem of surveying and mapping caused by difficulty in carrying of the tripod in mountainous areas or special outdoor terrains is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a theodolite tripod, make three stabilizer blades of tripod can the synchronous leveling, effectively solve three stabilizer blades because the regulating variable is inconsistent and lead to the theodolite mount pad to produce the slope of certain degree and the problem of unable accurate leveling, also can realize the portable removal of theodolite tripod simultaneously, prevent to produce the survey and drawing difficult problem because of being difficult to the transport at mountain area or open-air special topography tripod.

The utility model discloses a realize through following technical scheme:

a theodolite tripod comprises a base mounting plate, a supporting leg connecting plate and three supporting legs which are rotatably connected to the supporting leg connecting plate, wherein a limiting lifting assembly is fixedly connected to the center of the lower surface of the base mounting plate, penetrates through the center of the supporting leg connecting plate, is rotatably connected with the supporting leg connecting plate, and is rotatably connected with the base mounting plate and the supporting leg connecting plate through the limiting lifting assembly; the support legs comprise two rotating rods which rotate synchronously, support legs and a telescopic connecting sleeve, the telescopic connecting sleeve is sleeved on the outer surfaces of one ends of the rotating rods and the support legs at the same time, the support legs are attached to the middle of the two rotating rods which rotate synchronously, and the support legs and the rotating rods are movably connected through the telescopic connecting sleeve; the bottom end of the supporting leg is provided with a state switching assembly; the middle area that three stabilizer blades encircle is equipped with synchronous elevating gear, synchronous elevating gear fixed connection is in the upper end that supports the stabilizer blade, the plane height that synchronous elevating gear and support stabilizer blade hookup location is a little higher than the plane at flexible adapter sleeve place.

Preferably, the limiting lifting assembly comprises a lifting bolt and a limiting circular plate, the limiting circular plate is fixedly connected to the bottom end of the lifting bolt, the top end of the lifting bolt is fixedly connected with the lower surface of the base mounting plate, and a bolt hole groove rotatably connected with the lifting bolt is formed in the center of the supporting foot connecting plate.

Preferably, one side of the telescopic connecting sleeve is provided with a bolt hole groove, and the telescopic connecting sleeve is rotatably connected with a fastening bolt through the bolt hole groove.

Preferably, a group of symmetrical surfaces of the inner cavity of the telescopic connecting sleeve is completely attached to a group of symmetrical surfaces of the outer surfaces of the support legs correspondingly connected, and a certain space and a certain distance are reserved between the other group of symmetrical surfaces of the inner cavity of the telescopic connecting sleeve and a group of symmetrical surfaces of the outer surfaces of the rotating rods correspondingly connected.

Preferably, the state switching assembly comprises a fastening ring, a connecting round rod and state switching support legs, a bolt hole groove is formed in one side of the lower end of the fastening ring, the fastening ring is rotatably connected with one fastening bolt through the bolt hole groove, the fastening ring and the state switching support legs are rotatably connected through the connecting round rod, the connecting round rod penetrates through the lower end of the fastening ring, and the state switching support legs are arranged inside the fastening ring.

Preferably, the state switching leg comprises a sharp leg at one end, a universal wheel device at the other end and a connecting plate between the sharp leg and the universal wheel device, the transverse diameter length of the connecting plate is slightly smaller than that of the opening at the lower end of the fastening ring, and the connecting round rod penetrates through the middle part of the connecting plate.

Preferably, the synchronous lifting device comprises three independently working telescopic rods and a homothetic connecting ring, one end of each telescopic rod is fixedly connected with the homothetic connecting ring, the other end of each telescopic rod is fixedly connected with the upper end of each supporting leg, an elastic handle is arranged at the telescopic part in the middle of each telescopic rod, and the diameter of the inner ring of each homothetic connecting ring is slightly larger than that of the limiting circular plate.

The utility model has the advantages that:

the utility model provides a theodolite tripod, through the spacing lifting unit who sets up between base mounting panel and the stabilizer blade connecting plate can be convenient for the theodolite after the leveling to carry out height and the ascending and descending operation of side, and do not need the repeated stabilizer blade, it is more convenient; the telescopic connecting sleeves on the support legs are matched with the fastening bolts, so that the rotating rod and the support legs can be stably connected, and the support legs can be conveniently subjected to telescopic operation; the state switching assembly at the bottom of the supporting leg can switch the sharp leg at the bottom end into a universal wheel for assisting movement when the tripod needs to be carried and moved, and when the tripod reaches a surveying and mapping point and needs to be supported and fixed, the sharp leg is switched back to facilitate standing and stability, so that the portable movement of the theodolite tripod is realized; the synchronous lifting device connected to the upper ends of the 3 supporting support legs can control the 3 support legs to realize synchronous stretching in the vertical direction, the problem that the theodolite mounting seat is inclined to a certain degree and cannot be accurately leveled due to inconsistent stretching adjustment amount of the three support legs is solved, and the synchronous lifting device does not interfere with the 3 support legs and can independently rotate and displace in the transverse direction.

Drawings

Fig. 1 is a three-dimensional structure diagram of a theodolite tripod according to the present invention;

fig. 2 is a schematic view of the position structure of the limit lifting assembly of the present invention;

FIG. 3 is a perspective view of a leg of the present invention;

fig. 4 is a schematic structural diagram of the state switching assembly of the present invention;

fig. 5 is a schematic view of a part of the position structure of the synchronous lifting device of the present invention;

in the figure, a base mounting plate 1, a leg connecting plate 2, a leg 3, a rotating rod 31, a support leg 32, a telescopic connecting sleeve 33, a limit lifting assembly 4, a lifting bolt 41, a limit circular plate 42, a state switching assembly 5, a fastening circular ring 51, a connecting circular rod 52, a state switching leg 53, a sharp leg 530, a universal wheel device 531, a connecting plate 532, a synchronous lifting device 6, a telescopic rod 61, a homothetic connecting circular ring 62 and an elastic handle 63.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1-5, a theodolite tripod comprises a base mounting plate 1, a supporting leg connecting plate 2 and three supporting legs 3 rotatably connected to the supporting leg connecting plate 2, wherein a limiting lifting assembly 4 is fixedly connected to the center of the lower surface of the base mounting plate 1, the limiting lifting assembly 4 penetrates through the center of the supporting leg connecting plate 2, the limiting lifting assembly 4 is rotatably connected with the supporting leg connecting plate 2, and the base mounting plate 1 and the supporting leg connecting plate 2 are rotatably connected through the limiting lifting assembly 4; the support legs 3 comprise two rotating rods 31, supporting legs 32 and a telescopic connecting sleeve 33 which rotate synchronously, the telescopic connecting sleeve 33 is sleeved on the outer surfaces of one ends of the rotating rods 31 and the supporting legs 32 at the same time, the supporting legs 32 are attached to the middle of the two rotating rods 31 which rotate synchronously, and the supporting legs 32 and the rotating rods 31 are movably connected through the telescopic connecting sleeve 33; the bottom end of the supporting foot 32 is provided with a state switching component 5; the middle area surrounded by the three support legs 3 is provided with a synchronous lifting device 6, the synchronous lifting device 6 is fixedly connected with the upper end of the support leg 32, and the height of the plane of the connecting position of the synchronous lifting device 6 and the support leg 32 is slightly higher than the plane of the telescopic connecting sleeve 33; the state switching component 5 can switch the supporting state of the supporting legs 3, when the supporting legs need to be transported and moved, the state switching component 5 can enable the bottoms of the supporting legs 3 to be converted into wheel shafts to slide and move, manual transportation is not needed, a large amount of physical strength is saved, and therefore the problem of surveying and mapping caused by difficulty in transporting a tripod in a mountainous area or a special field can be solved; the synchronous lifting device 6 can control the three support legs 3 to synchronously lift, so that the problem that the theodolite mounting seat is inclined to a certain degree and cannot be accurately leveled due to inconsistent adjustment amounts of the three support legs is solved.

Preferably, the limit lifting assembly 4 comprises a lifting bolt 41 and a limit circular plate 42, the limit circular plate 42 is fixedly connected to the bottom end of the lifting bolt 41, the top end of the lifting bolt 41 is fixedly connected with the lower surface of the base mounting plate 1, the center of the support leg connecting plate 2 is provided with a bolt hole groove which is rotationally connected with the lifting bolt 41, the base mounting plate 1 can realize rotary lifting by controlling the position where the lifting bolt 41 is rotationally engaged with the thread of the support leg connecting plate 2, so that the theodolite arranged on the base mounting plate 1 can be finely adjusted in height and direction after being leveled, without repeating the lifting operation of the support legs 3, the limiting circular plate 42 has a limiting function for controlling the rotating position of the lifting bolt not to exceed a certain limit, so as to ensure that the limit lifting component 4 can be stably connected with the seat mounting plate 1 and the support leg connecting plate 2.

Preferably, a bolt hole slot is formed in one side of the telescopic connection sleeve 33, the telescopic connection sleeve 33 is rotatably connected with a fastening bolt through the bolt hole slot, and the fastening bolt can be used for fastening the corresponding position of the telescopic connection sleeve 33.

Preferably, a set of plane of symmetry of the flexible adapter sleeve 33 inner chamber is laminated completely with a set of plane of symmetry that corresponds the support stabilizer 32 surface of being connected, another group of plane of symmetry of flexible adapter sleeve 33 inner chamber contains certain space and distance with a set of plane of symmetry that corresponds the dwang 31 surface of being connected, dwang 31 and support stabilizer 32 laminate with flexible adapter sleeve 33's trilateral inner chamber altogether, only in one face headspace, the fastening bolt who conveniently corresponds flexible adapter sleeve 33 one side can carry out fastening work, only need control the fastening bolt and can realize the fastening connection of dwang 31 and support stabilizer 32 with the position of the rotatory gomphosis of bolt hole groove this moment, also can control dwang 31 and support stabilizer 32 disconnection to stretch out and draw back in the same reason, the principle is very simple and easy convenient.

Preferably, the status switching assembly 5 comprises a fastening ring 51, a connecting rod 52, status switching legs 53, one side of the lower end of the fastening ring 51 is provided with a bolt hole groove, the fastening ring 51 is rotationally connected with a fastening bolt through the bolt hole groove, the fastening ring 51 and the state switching leg 53 are rotatably coupled by a coupling rod 52, the connecting round rod 52 is arranged at the lower end of the fastening ring 51 in a penetrating way, the state switching support leg 53 is arranged inside the fastening ring 51, the state switching component has two states of supporting and sliding, the corresponding state switching can be realized only by rotating the state switching support leg 53 on the connecting round rod 52, when one state is used, the other state is placed in the middle of the inner part of the fastening ring 51, so that the two states cannot be interfered with each other and the volume of the tripod is not influenced, and the fastening ring 51 is used for fastening the relative positions of the state switching legs 53.

Preferably, the status switching leg 53 comprises a sharp leg 530 at one end, a universal wheel device 531 at the other end, and a connecting plate 532 therebetween, the transverse diameter length of the connecting plate 532 is slightly smaller than that of the lower opening of the fastening ring 51, and the connecting rod 52 passes through the middle part of the connecting plate 532; when the tripod needs to be carried and moved, the state switching supporting leg 53 is switched to one end provided with the universal wheel device 531, so that the tripod can slide and move without being carried by manpower; when the surveying and mapping place is reached for surveying and mapping, the state switching leg 53 is fixedly supported to the end provided with the sharp leg 530.

Preferably, the synchronous lifting device 6 comprises three independently working telescopic rods 61 and a homothetic connection ring 62, one end of each telescopic rod 61 is fixedly connected with the homothetic connection ring 62, the other end of each telescopic rod 61 is fixedly connected with the upper end of each supporting leg 32, an elastic handle 63 is arranged at the telescopic part in the middle of each telescopic rod 61, and the diameter of the inner ring of each homothetic connection ring 62 is slightly larger than that of the limiting circular plate 42; when the elastic grips 63 on the three telescopic rods 61 are screwed simultaneously, the homothetic connection ring 62 is synchronously and fixedly connected with the three supporting legs 32 through the telescopic rods 61, so that the three supporting legs 32 can only synchronously extend and retract in the vertical direction at the moment, the extending and retracting adjustment amount of the supporting legs 32 is completely consistent, and the tripod is prevented from leveling; the elastic grips 63 on the three telescopic rods 61 can be loosened independently, and at the moment, the three support legs 3 can rotate and move transversely independently; the diameter of the inner ring of the homothetic connection ring 62 is slightly larger than that of the limiting circular plate 42, so that the expansion length and state of the homothetic connection ring 62 cannot be limited by the position of the limiting circular plate 42 in the synchronous expansion working process.

The utility model discloses a theodolite tripod, when the stabilizer blade 3 needs to be stretched and adjusted the height, the elasticity handle 63 on the three telescopic link 61 is screwed simultaneously, the homothetic connection ring 62 can control the three supporting stabilizer blades 32 to be stretched and retracted synchronously vertically, the subsequent leveling can not be influenced when adjusting the height, when the three stabilizer blades 3 need to be displaced transversely and the distance between each other is pulled, the elasticity handle 63 on the corresponding telescopic link 61 is unscrewed to control the independent motion of the stabilizer blade 3, when the fixed state of the supporting stabilizer blade 32 and the rotating rod 31 needs to be fixed, only the fastening bolt on one side of the telescopic connecting sleeve 33 needs to be adjusted, when surveying and mapping work is carried out outdoors, especially in mountain area environment, when heavy tripod needs to be carried manually, the supporting point is switched to the one end provided with the universal wheel device 531 through the state switching stabilizer blade 53 at the bottom end of the stabilizer blade 3, just can make the tripod slide and remove, use manpower sparingly and consume, when arriving the survey and drawing place, can switch the stabilizer blade 53 with the state and carry out the fixed stay to the one end that is equipped with sharp-pointed stabilizer blade 530, leveling survey and drawing, when still need finely tune the height and the direction of theodolite after the leveling, control spacing lifting unit 4 carry on rotatory lift can, and need not repeatedly adjust flexible stabilizer blade 3.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although terms such as the base mounting plate 1, the leg connecting plate 2, the leg 3, the rotating rod 31, the supporting leg 32, the telescopic connecting sleeve 33, the limit elevating assembly 4, the elevating bolt 41, the limit circular plate 42, the state switching assembly 5, the fastening ring 51, the connecting circular rod 52, the state switching leg 53, the sharp leg 530, the universal wheel device 531, the connecting plate 532, the synchronous elevating device 6, the telescopic rod 61, the homothetic connecting ring 62, and the slack grip 63 are used more frequently herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. A theodolite tripod comprises a base mounting plate (1), a supporting leg connecting plate (2) and three supporting legs (3) which are rotatably connected to the supporting leg connecting plate (2), and is characterized in that the center of the lower surface of the base mounting plate (1) is fixedly connected with a limiting lifting assembly (4), the limiting lifting assembly (4) penetrates through the center of the supporting leg connecting plate (2), the limiting lifting assembly (4) is rotatably connected with the supporting leg connecting plate (2), and the base mounting plate (1) and the supporting leg connecting plate (2) are rotatably connected through the limiting lifting assembly (4); the supporting feet (3) comprise two synchronous rotating rods (31), supporting feet (32) and a telescopic connecting sleeve (33), the telescopic connecting sleeve (33) is sleeved on the outer surfaces of one ends of the rotating rods (31) and the supporting feet (32), the supporting feet (32) are attached to the middle of the two synchronous rotating rods (31), and the supporting feet (32) and the rotating rods (31) are movably connected through the telescopic connecting sleeve (33); the bottom end of the supporting foot (32) is provided with a state switching component (5); the middle area that three stabilizer blades (3) encircle is equipped with synchronous elevating gear (6), synchronous elevating gear (6) fixed connection is in the upper end that supports stabilizer blade (32), synchronous elevating gear (6) and the plane height that supports stabilizer blade (32) hookup location are higher than the plane at flexible adapter sleeve (33) place.

2. The theodolite tripod is characterized in that the limiting lifting assembly (4) comprises a lifting bolt (41) and a limiting circular plate (42), the limiting circular plate (42) is fixedly connected to the bottom end of the lifting bolt (41), the top end of the lifting bolt (41) is fixedly connected with the lower surface of the base mounting plate (1), and a bolt hole groove rotatably connected with the lifting bolt (41) is formed in the center of the supporting leg connecting plate (2).

3. A theodolite tripod according to claim 1, wherein one side of the telescopic connecting sleeve (33) is provided with a bolt hole slot, and the telescopic connecting sleeve (33) is rotatably connected with a fastening bolt through the bolt hole slot.

4. A theodolite tripod according to claim 3, wherein a set of symmetry planes of the inner cavity of the telescopic connecting sleeve (33) completely fits with a set of symmetry planes of the outer surface of the correspondingly connected supporting foot (32), and a certain space and distance are provided between the other set of symmetry planes of the inner cavity of the telescopic connecting sleeve (33) and a set of symmetry planes of the outer surface of the correspondingly connected rotating rod (31).

5. A theodolite tripod according to claim 1, wherein the state switching assembly (5) comprises a fastening ring (51), a connecting rod (52) and a state switching supporting leg (53), wherein a bolt hole slot is formed in one side of the lower end of the fastening ring (51), the fastening ring (51) is rotatably connected with a fastening bolt through the bolt hole slot, the fastening ring (51) and the state switching supporting leg (53) are rotatably connected through the connecting rod (52), the connecting rod (52) penetrates through the lower end of the fastening ring (51), and the state switching supporting leg (53) is arranged in the fastening ring (51).

6. A theodolite tripod according to claim 5, wherein said switching leg (53) comprises a sharp leg (530) at one end, a castor wheel (531) at the other end and a connecting plate (532) therebetween, said connecting plate (532) having a transverse diametric length smaller than that of the lower end opening of the fastening ring (51), said connecting rod (52) passing through the intermediate portion of the connecting plate (532).

7. A theodolite tripod according to claim 2, wherein said synchronous lifting device (6) comprises three independently working telescopic rods (61) and a homothetic connection ring (62), one end of said telescopic rod (61) is fixedly connected with said homothetic connection ring (62), the other end of said telescopic rod (61) is fixedly connected with the upper end of said supporting legs (32), said telescopic portion in the middle of said telescopic rod (61) is provided with an elastic handle (63), and the diameter of the inner ring of said homothetic connection ring (62) is greater than the diameter of said spacing circular plate (42).