CN218781050U

CN218781050U - Total powerstation bearing structure

Info

Publication number: CN218781050U
Application number: CN202222672471.XU
Authority: CN
Inventors: 阮琳; 杨国兴; 李春林; 王志岗; 刘昆; 由明明; 王冬敏; 李齐荣; 李圈发
Original assignee: Yangtze Three Gorges Technology and Economy Development Co Ltd
Current assignee: Yangtze Three Gorges Technology and Economy Development Co Ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-03-31
Anticipated expiration: 2032-10-11

Abstract

A total station supporting structure comprises an installation platform, three supporting legs uniformly distributed along the edge contour direction of the installation platform are hinged on the installation platform, a lead screw extending out is downwards arranged at the center position of the installation platform, the axis of the lead screw is collinear with the center line of the installation platform, a sliding piece is sleeved on the lead screw and is in screw fit transmission with the lead screw, a connecting rod is hinged between each supporting leg and the sliding piece, the slider comprises a sleeve, the sleeve is sleeved on the lead screw and is in screw fit with the lead screw, the sleeve ring is sleeved on the sleeve in a rotating mode, one end of the connecting rod is hinged to the supporting leg, the other end of the connecting rod is hinged to the sleeve ring, each supporting leg is further provided with a clamping block in elastic connection, and each clamping block is provided with a transmission rope and is connected with a shaft sleeve located at the center of each supporting leg. Through this support framework, can be simultaneously to each landing leg accurate, stable synchronous opening or fold to only need rotatory axle sleeve can make each landing leg flexible when the landing leg is flexible, simple structure, convenient to use, the instrument is laid efficiently.

Description

Total powerstation bearing structure

Technical Field

The utility model relates to a surveying instrument technical field especially relates to a total powerstation bearing structure.

Background

Current total powerstation mainly includes instrument main part and tripod, and in the use, the tripod need open and shut usually to realize the support and the recovery of total powerstation, but this regulative mode needs the workman to the three stabilizer blade one-to-one regulation of tripod, complex operation, and greatly reduced work efficiency, need improve.

Chinese patent document CN114216033A, open/announce day 2022 year 03 month 22, disclose a tripod, the tripod includes the fixed disk and rotates at least three leg assembly of connecting on the fixed disk, every leg assembly all includes first support piece, adjusting part and second support piece, first support piece rotates with the fixed disk to be connected, adjusting part includes the regulating part, duplex bearing assembly and guide, the one end and the first support piece clearance fit of guide, the other end and the second support piece of guide are connected, adjusting part and first support piece threaded connection, and rotate with the guide through duplex bearing assembly and be connected, duplex bearing assembly includes that the back sets up first bearing and the second bearing on the guide. The three-leg synchronous opening and closing device is characterized by simple structure and inconvenience in use, and has the defects that three legs cannot be opened or closed accurately and stably synchronously at the same time, and the legs need to be independently operated and adjusted to extend one by one when extending.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the problem of exist among the above-mentioned background is solved, provide a total powerstation bearing structure, through this support framework, can be simultaneously to each landing leg accurate, stable synchronous opening or fold to only need rotatory axle sleeve can make each landing leg flexible when the landing leg is flexible, simple structure, convenient to use, the instrument is laid efficiently.

In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the utility model provides a total powerstation bearing structure, includes the mount table, articulated on the mount table have along its edge profile direction equipartition at least three landing leg, the central point of mount table puts and is equipped with the lead screw that stretches out downwards, the axis of lead screw and the central line collineation of mount table, and the slider cover is established on the lead screw and is cooperated the transmission with the lead screw spiral, and articulated between landing leg and the slider have the connecting rod, the slider includes the sleeve, and the sleeve cover is established on the lead screw and is cooperated with the lead screw spiral, and lantern ring pivoted cover is established on the sleeve, and connecting rod one end is articulated with the landing leg, and the other end is articulated with the lantern ring, each the landing leg still is equipped with elastic connection's fixture block respectively, and each fixture block is equipped with the transmission rope respectively and is located the axle sleeve connection at each landing leg middle part.

The landing leg includes female pole and son pole, and female pole inside is opened there is the spout that sets up along length direction, and spout one end runs through the lower extreme of female pole, and son pole sliding insertion is in the spout, and son pole leans on lead screw one side to open has along its length direction evenly distributed's a plurality of draw-in grooves, the fixture block is installed on female pole, and fixture block one end slides and runs through female pole lateral wall and extend in the draw-in groove.

The one end of the relative axle sleeve of fixture block is equipped with the dead lever, and the cover is equipped with the sliding sleeve on the dead lever, and the sliding sleeve can be followed its axial slip on the dead lever, and the one end that the driving rope is close to the fixture block is connected with the sliding sleeve.

The two sides of the clamping block are respectively provided with a spring to form elastic connection, one end of the spring is fixedly connected with the female rod, and the other end of the spring is fixedly connected with the clamping block.

The shaft sleeve is freely sleeved on the screw rod, or the shaft sleeve is rotatably arranged on the sleeve and is positioned at the lower end of the lantern ring.

The support leg is fixedly provided with a limit stop, the hinged part of the support leg and the connecting rod is positioned above the limit stop, and the limit stop is used for limiting the connecting rod and the support leg in a spreading state.

And a hand wheel is arranged on the sleeve.

The shaft sleeve is provided with friction grains.

The utility model discloses there is following beneficial effect:

1. articulated between landing leg and the saddle have the connecting rod saddle to include the sleeve, and the sleeve cover is established on the lead screw and with lead screw fit, and lantern ring pivoted cover is established on the sleeve, and connecting rod one end is articulated with the landing leg, and the other end is articulated with the lantern ring, and the lantern ring drives the connecting rod and is planar motion in step, and planar motion is simultaneously done to the connecting rod, drives each landing leg outwards to open simultaneously then. On one hand, the screw transmission of the sleeve and the lead screw increases the movement stability, avoids mechanical collision caused by rapid sliding of the lower slider and prolongs the service life of the device; on the other hand, the opening degree of the support leg is adjusted in a stepless mode, and the adjusting precision is high. The supporting legs are in transmission connection, and the single supporting leg is not easy to shake, so that the stability of the device is enhanced.

2. Each landing leg still is equipped with elastic connection's fixture block respectively, and each fixture block is equipped with the driving rope respectively and is located the axle sleeve connection at each landing leg center, and when the landing leg is flexible, only need rotatory axle sleeve can make the fixture block on each landing leg pull out from the draw-in groove, and make the convenient flexible of sub-pole, simple structure, convenient to use, the instrument is laid efficiently.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is an enlarged structural schematic diagram of a in fig. 2.

Fig. 4 is a perspective view of the female rod of the present invention.

In the figure: the device comprises an installation table 1, an instrument main body 2, supporting legs 3, a connecting rod 4, a sleeve 5, a screw rod 6, a spiral groove 7, a sleeve ring 8, a female rod 9, a male rod 10, a sliding groove 11, a clamping groove 12, a clamping block 13, a spring 14, a shaft sleeve 15, a transmission rope 16, a fixed rod 17, a sliding sleeve 18, a hand wheel 19 and a limit stop 20.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Referring to fig. 1-4, a total station supporting structure comprises an installation table 1, three supporting legs 3 uniformly distributed along the edge contour direction of the installation table 1 are hinged to the installation table 1, a lead screw 6 extending downwards is arranged at the center of the installation table 1, the axis of the lead screw 6 is collinear with the center line of the installation table 1, a slider is sleeved on the lead screw 6 and is in screw fit transmission with the lead screw 6, a connecting rod 4 is hinged between the supporting legs 3 and the slider, the slider comprises a sleeve 5, the sleeve 5 is sleeved on the lead screw 6 and is in screw fit with the lead screw 6, a sleeve ring 8 is rotatably sleeved on the sleeve 5, one end of the connecting rod 4 is hinged to the supporting legs 3, the other end of the connecting rod is hinged to the sleeve ring 8, each supporting leg 3 is further provided with a clamping block 13 in elastic connection, and each clamping block 13 is provided with a transmission rope 16 and connected with a shaft sleeve 15 located at the center of each supporting leg 3. The instrument body 2 is above the mounting table 1, and the mounting table 1 is used for bearing the weight of the instrument body 2.

The vertical distances between the three legs 3 and the sliding piece are equal, and a connecting rod 4 is hinged between the legs 3 and the sliding piece in a limiting mode, so that when the sliding piece is adjusted downwards to the tail end of the stroke of the lower end of the screw rod 6, the legs 3 cannot be retracted under the action of external thrust.

In the initial state, the part of the connecting rod 4 close to the slider faces obliquely downward of the slider, as shown in fig. 1; at the end of the downward stroke of the slide, which is now active, the portion of the rod 4 adjacent to the slide is directed obliquely upwards (not shown).

During the use, adjust the sleeve 5 of slider downwards, lantern ring 8 drives connecting rod 4 and is planar motion in step, and connecting rod 4 drives landing leg 3 and outwards opens for mount table 1, and this in-process, three connecting rod 4 is planar motion simultaneously, drives three landing leg 3 and outwards opens simultaneously then. The screw transmission of the sleeve 5 and the lead screw 6 increases the motion stability on one hand, avoids mechanical collision caused by rapid sliding of the lower slider and prolongs the service life of the device; on the other hand, the opening degree of the supporting leg 3 is adjusted in a stepless mode, and the adjusting precision is high. After the device is placed, the single supporting leg 3 is not easy to shake due to the transmission connection relation among the supporting legs 3, and the stability of the device is enhanced.

Through this support architecture, can be simultaneously to each 3 accurate, stable synchronous openings of landing legs or fold to only need rotatory axle sleeve 15 can make each 3 telescoping legs when 3 telescoping legs stretch out and draw back, simple structure, convenient to use, the instrument is laid efficiently.

Referring to fig. 2 and 4, the supporting leg 3 includes a female rod 9 and a male rod 10, a sliding groove 11 is formed in the female rod 9 and is arranged along the length direction, one end of the sliding groove 11 penetrates through the lower end of the female rod 9, the male rod 10 is slidably inserted into the sliding groove 11, a plurality of clamping grooves 12 are uniformly distributed along the length direction of the male rod 10 on one side of the male rod 10 close to the lead screw 6, the clamping block 13 is mounted on the female rod 9, and one end of the clamping block 13 slidably penetrates through the side wall of the female rod 9 and extends into the clamping groove 12. The female rod 9 and the male rod 10 are bar-shaped rods, and may be cylindrical. The connecting rod 4 is hinged with the female rod 9, and the clamping block 13 is arranged on one side wall of the female rod 9 relative to the lead screw 6. When the driving rope 16 is pulled, the latch 13 on the leg can be pulled out from the latch groove 12, so that the sub-rod 10 can be conveniently stretched.

In a preferable scheme, one end of the fixture block 13, which is opposite to the shaft sleeve 15, is provided with a fixing rod 17, a sliding sleeve 18 is sleeved on the fixing rod 17, the sliding sleeve 18 can slide on the fixing rod 17 along the axial direction thereof, and one end of the transmission rope 16, which is close to the fixture block 13, is connected with the sliding sleeve 18. Specifically, the fixing rod 17 is a U-shaped structure, two ends of the U-shaped structure are connected to the fixture block 13, so that a gap is formed between the fixing rod 17 and the fixture block 13, and the whole length direction of the fixing rod 17 is along the side line direction of the mounting table 1. The cover is equipped with sliding sleeve 18 on the dead lever 17, and sliding sleeve 18 can be followed its axial slip on dead lever 17, and the one end and the sliding sleeve 18 fixed connection that driving rope 16 is close to fixture block 13, and the preferred cotton of the material of sliding sleeve 18, the texture is soft yielding, and easy the slip can adopt the mode of sewing up to fix between driving rope 16 and the sliding sleeve 18. When the shaft sleeve 15 is rotated to pull out the fixture block 13, a situation that the inclination degree of the transmission rope 16 relative to the fixture block 13 is too large can exist within a certain range, and at this time, the fixture block 13 is not easy to pull out, or the fixture block 13 needs to be pulled out with a considerable force, so as to weaken the phenomenon that the required force is increased, the sliding sleeve 18 can slide along the axial direction of the fixing rod 17 under the action of the force, the inclination degree of the transmission rope 16 relative to the fixture block 13 is reduced due to the sliding, the fixture block 13 can be pulled out with a small force, the labor expenditure is saved, and meanwhile, the situation that the transmission rope 16 is broken when the force is too large is avoided. This arrangement allows a range of play in the connection of drive cord 16 and latch 13.

Specifically, referring to fig. 3, two sides of the latch 13 are respectively provided with a spring 14 to form an elastic connection, one end of the spring 14 is fixedly connected with the female rod 9, and the other end of the spring 14 is fixedly connected with the latch 13, so that the structure is simple. Preferably, the spring 14 is a tension spring, and the tension spring is respectively connected with the fixture block 13 and the female rod 9 through hooks at two ends. Of course, the latch 13 can also be connected with the female rod 9 through a common spring structure.

Specifically, the shaft sleeve 15 is freely sleeved on the lead screw 6 (not shown in the figure), or the shaft sleeve 15 is rotatably mounted on the sleeve 5 and located at the lower end of the lantern ring 8 (see fig. 1 and 2). The difference between the two modes is that when the selected shaft sleeve 15 is freely sleeved on the screw rod 6, the shaft sleeve 15 does not move downwards along with the sleeve 5 to generate position change; when the shaft sleeve 15 sleeved on the screw rod 6 is rotatably connected to the selection sleeve 5, the shaft sleeve 15 moves downwards along with the downward movement of the sleeve 5.

Referring to fig. 1, a limit stop 20 is fixedly arranged on the leg 3, a hinge portion of the leg 3 and the connecting rod 4 is located above the limit stop 20, and the limit stop 20 is used for limiting the connecting rod 4 and the leg 3 in a spread state. When the connecting rod 4 comes into contact with the limit stop 20, the sleeve 5 moves to the end of the downward stroke, the connecting rod 4 tends to deflect towards the limit stop 20, but under the stop of the limit stop 20, the connecting rod 4 cannot perform this movement, and therefore the movement of the leg 3 is stopped, achieving the effect that the leg 3 cannot be retracted under the action of an external thrust.

The sleeve 5 is provided with a hand wheel 19, and the sleeve 5 can be conveniently rotated by utilizing the principle of a labor-saving lever.

Friction grains are arranged on the shaft sleeve 15, friction force between a hand and the shaft sleeve 15 is increased, and the hand-holding type hand-holding device is convenient to hold.

The utility model discloses a working process and principle:

during the use, the sleeve 5 of rotatory adjustment slider is transferred downwards, and the lantern ring 8 drives connecting rod 4 and is the plane motion in step, and connecting rod 4 drives landing leg 3 and outwards opens for mount table 1, and this in-process, three connecting rod 4 is the plane motion simultaneously, drives three landing leg 3 and outwards opens simultaneously then.

When the sub-rod 10 of the leg 3 needs to be extended, the shaft sleeve 15 is rotated, and the shaft sleeve 15 pulls the driving rope 16 at the same time, so that the clamping block 13 on the leg 3 is pulled out from the clamping groove 12, and the sub-rod 10 is extended conveniently. The sub-rod 10 can be retracted into the female rod 9 in the same manner.

Claims

1. The utility model provides a total powerstation bearing structure, includes mount table (1), articulated on mount table (1) have along at least three landing leg (3) of its marginal profile direction equipartition, its characterized in that: the center position of mount table (1) is equipped with down lead screw (6) that stretches out, and the axis of lead screw (6) and the central line collineation of mount table (1), and the slider cover is established on lead screw (6) and with lead screw (6) screw fit transmission, and articulated between landing leg (3) and the slider have connecting rod (4), the slider includes sleeve (5), and sleeve (5) cover is established on lead screw (6) and with lead screw (6) screw fit, and lantern ring (8) pivoted cover is established on sleeve (5), and connecting rod (4) one end is articulated with landing leg (3), and the other end is articulated with the lantern ring (8), each landing leg (3) still are equipped with elastic connection's fixture block (13) respectively, and each fixture block (13) are equipped with driving rope (16) respectively and are located the axle sleeve (15) in each landing leg (3) middle part and are connected.

2. A total station support structure according to claim 1, wherein: landing leg (3) are including female pole (9) and son pole (10), and female pole (9) is inside to be opened has spout (11) that set up along length direction, and the lower extreme of female pole (9) is run through to spout (11) one end, and son pole (10) slide insert in spout (11), and son pole (10) are leaned on lead screw (6) one side to be opened has along a plurality of draw-in grooves (12) of its length direction evenly distributed, install on female pole (9) fixture block (13), and fixture block (13) one end slides and runs through female pole (9) lateral wall and extend in draw-in groove (12).

3. A total station support structure according to claim 1, wherein: a fixing rod (17) is arranged at one end, opposite to the shaft sleeve (15), of the clamping block (13), a sliding sleeve (18) is sleeved on the fixing rod (17), the sliding sleeve (18) can slide on the fixing rod (17) along the axial direction of the fixing rod, and one end, close to the clamping block (13), of the transmission rope (16) is connected with the sliding sleeve (18).

4. A total station support structure according to claim 1, 2 or 3, wherein: and two sides of the clamping block (13) are respectively provided with a spring (14) to form elastic connection, one end of the spring (14) is fixedly connected with the female rod (9), and the other end of the spring is fixedly connected with the clamping block (13).

5. A total station support structure according to claim 1, wherein: the shaft sleeve (15) is freely sleeved on the lead screw (6), or the shaft sleeve (15) is rotatably arranged on the sleeve (5) and is positioned at the lower end of the lantern ring (8).

6. A total station support structure according to claim 1, wherein: the supporting leg (3) is fixedly provided with a limit stop (20), the hinged part of the supporting leg (3) and the connecting rod (4) is positioned above the limit stop (20), and the limit stop (20) is used for limiting the connecting rod (4) and the supporting leg (3) in a spreading state.

7. A total station support structure according to claim 1, wherein: and a hand wheel (19) is arranged on the sleeve (5).

8. A total station support structure according to claim 1, wherein: the shaft sleeve (15) is provided with friction grains.