CN217736816U

CN217736816U - Urban rail transit plans to draw with measuring support

Info

Publication number: CN217736816U
Application number: CN202221397905.3U
Authority: CN
Inventors: 钟晓玲; 夏元源
Original assignee: Chongqing Jiangjin District Planning Management Center
Current assignee: Chongqing Jiangjin District Planning Management Center
Priority date: 2022-06-06
Filing date: 2022-06-06
Publication date: 2022-11-04
Anticipated expiration: 2032-06-06

Abstract

The utility model provides a measuring support for urban rail transit planning and drawing, which comprises a bottom plate, wherein two pairs of sliding racks are arranged on the upper end surface of the bottom plate from top to bottom, each pair of sliding racks are respectively arranged on two sides of a driving gear and keep meshing with the driving gear, the upper and lower pairs of sliding gears are mutually vertical, the two driving gears are coaxially fixed on the same rotating shaft, and the rotating shaft is rotationally arranged in the center of the upper end surface of the bottom plate; every one end that the slip rack is carried on the back mutually each other is connected with the steel wire respectively, and every steel wire all links to each other with a branch, and the branch top articulates in the edge of bottom plate to when making the axis of rotation rotate, all steel wires pull the branch that corresponds in step and rotate around the edge of bottom plate. This measurement support, convenient to use can make all branches to expand or draw in step fast, and altitude mixture control is swift reliable.

Description

Urban rail transit plans to draw with measuring support

Technical Field

The utility model relates to a traffic planning measuring equipment field, more specifically says, relates to an urban rail transit plans to draw and uses measuring support.

Background

When carrying out urban rail transit planning, inevitably will involve measuring to draw, current measuring support, mostly be simple tripod, though say simple structure, preparation low cost, it has a problem, that is when opening the support, all branches of support will break off with the fingers and thumb respectively, then adjust to interval relatively unanimous each other or the gradient relatively unanimous back, just can keep comparatively stable supporting role to position slope when preventing the measuring equipment installation. In order to adjust the height to a certain position, the struts are usually opened or closed frequently, and the inclination of the struts is also required to be kept relatively consistent in the process, so that the height adjustment is inconvenient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to the above-mentioned not enough that exists among the prior art and provide a city rail transit plans to draw with measuring support, solved among the prior art all branches of measuring support and be difficult to the problem that launch in step or draw in.

In order to achieve the above purpose, the utility model adopts the following technical proposal: a measuring support for urban rail transit planning and drawing comprises a bottom plate, wherein two pairs of sliding racks are arranged on the upper end surface of the bottom plate from top to bottom, each pair of sliding racks are respectively arranged on two sides of a driving gear and are meshed with the driving gear, the upper and lower pairs of sliding gears are mutually vertical, the two driving gears are coaxially fixed on the same rotating shaft, and the rotating shaft is rotatably arranged in the center of the upper end surface of the bottom plate; each pair of sliding racks is connected with a steel wire at one end which is opposite to each other, each steel wire is connected with a supporting rod, and the top ends of the supporting rods are hinged to the edge of the bottom plate, so that when the rotating shaft rotates, all the steel wires synchronously pull the corresponding supporting rods to rotate around the edge of the bottom plate.

Preferably, the sliding rack is installed on a ram in a sliding fit manner, the ram is fixed on the upper end face of the bottom plate, a pulley is installed at the free end of the ram, the steel wire passes around the pulley along the ram and then extends downwards to be connected with the support rod, and more preferably, the support rod is a telescopic rod.

More specifically, rollers are mounted on two opposite side walls of the sliding groove, which is in sliding fit with the ram, and the groove, and are in rolling contact with two sides and the top surface of the ram.

Furthermore, the utility model discloses in, still include drive assembly and the roof fixed with the bottom plate, this drive assembly installs the runner by roof edge including rotating, and after the shaft normal running fit ground of runner passed the roof, a bottom rigid coupling one was the rocking arm of L type, and the vertical strip downthehole that inserts the slide of free end of rocking arm, slide one end is fixed on one of them sliding rack on upper portion to when making the runner rotate, the rocking arm drives the slide and is linear motion and orders about one of them sliding rack removes along the ram direction.

The top plate is fixed above the bottom plate through a pair of ejector rods, a circular threaded columnar bulge is arranged at the edge of the bottom plate, the wheel shaft is rotatably installed in the bulge, a limiting ring is fixedly connected to the position, close to the top end face of the bulge, of the wheel shaft, and the limiting ring is tightly pressed on the top end face of the bulge through a threaded pressing cover in threaded fit with the bulge. In particular, an operating wheel for rotating the screw gland is fixedly sleeved outside the upper end of the screw gland.

For a specific measuring device, the top plate can be provided with a connecting end connected with the measuring device, or the measuring device is fixedly connected through a vertical column fixed in the center of the top plate.

As a composite structure design, the steel wire is detachably connected with the support rod; the end part of the sliding rack is also provided with a sliding rod in a sliding way along the ram, one end of the sliding rod, which extends out of the ram, is hinged with one end of a turning rod, and the other end of the turning rod is butted with the side surface of the supporting rod; the two opposite supporting rods are connected through a detachable top supporting spring which is horizontally arranged, and the top supporting spring always plays a role in separating and pushing the two supporting rods towards two sides.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses a two pairs move the synchronous rotation that reverse rack realized each branch each other to realize the synchronous expansion of each branch of support and draw in, altitude mixture control is convenient, accurate, can make the support expand fast to set high position of stabilizing, especially is suitable for to the measurement occasion that requires to be higher to the measuring equipment installation.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic partial top view of the present invention;

FIG. 2 is a simplified left side view of the structure shown in FIG. 1;

FIG. 3 is a schematic structural view of a steel wire or crank drive bracket;

FIG. 4 is a view showing the installation structure of the top plate and the driving part;

fig. 5 is an end view of the structure of the sliding rack and the ram.

The device comprises a bottom plate 1, a sliding rack 2, a ram 3, a driving gear 4, a rotating shaft 5, a steel wire 6, a pulley 7, a wheel shaft 8, a rocker arm 9, a sliding plate 10, a mandril 11, a roller 12, a support rod 13, a hand wheel 14, a wheel shaft 15, a threaded gland 16, a rotating wheel 17, a protrusion 18, a limiting ring 19, a transverse section 20, a vertical section 21, a top plate 22, an upright column 23, a sliding rod 24, a crank rod 25 and a jacking spring 26.

Detailed Description

In order to make the utility model discloses technical means, creation characteristic, achievement purpose and effect that realize are clearer and easily understand, and it is right to combine below attached drawing and detailed implementation mode the utility model discloses do further to explain:

the utility model discloses one of them embodiment specifically provides a city track traffic plans and draws and uses measuring support, structurally, as shown in fig. 1-2, one of the main part is bottom plate 1 as the supporting body, two pairs of sliding rack 2 have been arranged from top to bottom in this bottom plate 1 up-and-down tip, each pair of sliding rack 2 is listed as the both sides of a driving gear 4 and keeps meshing with it, two pairs of upper and lower sliding gear mutually perpendicular, two driving gears 4 coaxial fixes on same axis of rotation 5, in order to realize synchronous drive, can install axis of rotation 5 at bottom plate 1 up-and-down tip central authorities with rotating, so as to drive; in practice, the rotating shaft 5 may be in driving connection with a driving device such as a motor. As shown in fig. 1 and 3, the ends of each pair of sliding racks 2 opposite to each other are respectively connected with a steel wire 6, each steel wire 6 is connected with a support rod 13, and the support rods 13 may be fixed long or telescopic rod structures, that is, the length may be changed. During actual manufacturing, the top end of the supporting rod 13 is hinged to the edge of the bottom plate 1, so that when the rotating shaft 5 rotates, all the supporting rods 13 corresponding to synchronous pulling of the steel wires 6 rotate around the edge of the bottom plate 1, and all the supporting rods 13 are turned upwards and are spread or turned downwards and are closed, so that requirements of different heights and different supporting ground sizes are met.

In practice, as shown in fig. 1 and 3, the above sliding rack 2 is installed on the ram 3 in a sliding fit manner, the ram 3 is fixed on the upper end face of the bottom plate 1, the pulley 7 is installed at the free end of the ram 3 and functions as a fulcrum, and the steel wire 6 extends downwards along the ram 3 after bypassing the pulley 7 and is connected with the supporting rod 13, so that the lifting supporting rod 13 can be turned over conveniently. Meanwhile, the sliding rack 2 of the present embodiment has a sliding slot in sliding fit with the ram 3, as shown in fig. 5, two opposite side walls of the sliding slot and the slot bottom are both provided with rollers 12, specifically, 5 pulleys 7 are respectively disposed at the front end and the rear end of the sliding slot, and all the rollers 12 are in rolling contact with two sides and the top surface of the ram 3, so as to improve the sliding efficiency and stability.

As a more specific implementation detail, as shown in fig. 1 and in conjunction with fig. 4, the present measuring stand further includes a driving part and a top plate 22 fixed to the bottom plate 1, the driving part may specifically include a rotating wheel 17 rotatably mounted at an edge of the top plate 22, a wheel shaft 158 of the rotating wheel 17 passes through the top plate 22 in a rotating fit manner, and a rocker arm 9 in an L shape is fixedly connected to a bottom end thereof, the rocker arm 9 mainly includes a horizontal section 20 and a vertical section 21, and a free end of the vertical section 21 of the rocker arm 9 can be vertically inserted into a slot of the sliding plate 10 and slidably fit with the slot. Specifically, one end of the sliding plate 10 is fixed to one of the upper sliding racks 2, so that when the rotating wheel 17 rotates, the rotation of the swing arm 9 drives the sliding plate 10 to perform a reciprocating linear motion, so as to drive one of the sliding racks 2 to move along the ram 3, that is, the input power of the driving gear 4 or the rotating shaft 5 is generated by the movement of one of the sliding racks 2, and the hand wheel 14 is manually rotated as the input power, so as to realize the opposite movement of each pair of sliding racks 2. Of course, direct connection of the axle 158, such as a motor, may be used instead of manual rotation, depending on whether portability or portability is desired. When the struts 13 need to be opened, the wheel axle 158 can rotate in the reverse direction of the steering direction shown in fig. 1, so that all the sliding racks 2 are contracted and closed to each other, all the steel wires 6 are driven to move towards the inner side of the bottom plate 1, all the struts 13 are pulled to turn upwards, all the struts 13 are unfolded, and the ground clearance of the struts 13 can be continuously adjusted due to different opening degrees.

In this embodiment, for the fixed installation of the top plate 22, the top plate 22 may be fixed above the bottom plate 1 through a pair of push rods 11, a circular threaded cylindrical protrusion 18 is provided at the edge of the bottom plate 1, the wheel shaft 158 is rotatably installed in the protrusion 18, a limit ring 19 is fixedly connected to the wheel shaft 158 near the top end face of the protrusion 18, and a threaded gland 16 in threaded fit with the protrusion 18 tightly presses the limit ring 19 on the top end face of the protrusion 18, so as to fix the hand wheel 14, that is, indirectly fix the sliding rack 2. In order to fix the hand wheel 14, an operating wheel for rotating the screw gland 16 is fixedly sleeved outside the upper end of the screw gland 16, so that the screw gland 16 can be conveniently and effortlessly rotated to be compressed.

During engineering operation, for a specific measuring device, the top plate 22 may be provided with a connecting end for connecting with the measuring device, or the measuring device may be directly fixed by a rod member (not shown) like a column 23 fixed at the center of the top plate 22.

In the above embodiments, the present invention is suitable for a light-weight measuring device, of course, most of the existing measuring devices are designed to be integrated opto-electronic, and are compact and light, but in some special occasions, the measuring device itself used by the measuring device is heavy, or a measuring person needs to lie on the bottom plate 1 during measurement, or lean against the measuring device, thereby generating a great pressure on the whole support, so that the support may be difficult to naturally support the bottom plate 1 and the accessory elements above the bottom plate when the angle of the supporting rod 13 is inappropriate, so that the support may collapse, that is, all or part of the support turns outwards and rotates beyond a predetermined angle, which results in insufficient supporting rigidity and inaccurate height. For this purpose, the present embodiment features a detachable connection of the wire 6 to the strut 13, so that the wire 6 can be detached from the strut 13 if necessary; for example, the change is installed on the support rod 13, and the end part of the steel wire 6 is connected with a hook; even when manufactured, the steel wire 6 can be directly removed. Meanwhile, as shown in fig. 3, a slide rod 24 is further slidably mounted at the end of the slide rack 2 along the ram 3, one end of the slide rod 24 extending out of the ram 3 is hinged with one end of a crank 25, the other end of the crank 25 is abutted with the side surface of the support rod 13, meanwhile, the two opposite support rods 13 are connected through a detachable top support spring 26 horizontally arranged, and the top support spring 26 always plays a role in separating and pushing the two support rods 13 towards two sides; the detachable connection of the top bracing spring 26 can refer to the detachable connection structure of the steel wire 6, and the hook and the hanging ring structure are respectively arranged, so that the top bracing spring 26 can be taken down or installed when necessary, and of course, only one of the top bracing spring 26 and the steel wire rope 6 can be connected with the support rod when in use. When the two opposite sliding racks 2 are far away from each other, the respective sliding rods 24 are pushed to move outwards, so that the supporting rods 13 are pushed outwards in an overturning manner under the action of the supporting springs 26, the inclination of the supporting rods 13 is adjusted, the height of the support is changed, and the support cannot be loosened or collapsed even if the bottom plate 1 or the top plate 22 bears great pressure because the connecting rods 25 are always used as rigid interference.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides an urban rail transit plans to draw with measuring support which characterized in that: the novel gear box comprises a bottom plate (1), wherein two pairs of sliding racks (2) are arranged on the upper end surface of the bottom plate (1) from top to bottom, each pair of sliding racks (2) are respectively arranged on two sides of a driving gear (4) and are meshed with the driving gear, the upper pair of sliding gears and the lower pair of sliding gears are mutually vertical, the two driving gears (4) are coaxially fixed on the same rotating shaft (5), and the rotating shaft (5) is rotatably arranged in the center of the upper end surface of the bottom plate (1); every one end that each pair slided rack (2) mutually carried on the back mutually is connected with steel wire (6) respectively, and every steel wire (6) all link to each other with a branch (13), branch (13) top articulates the edge of bottom plate (1) for when axis of rotation (5) rotate, all steel wires (6) stimulate corresponding branch (13) in step and rotate around the edge of bottom plate (1).

2. The measurement support for urban rail transit planning and drawing according to claim 1, wherein: slide rack (2) are installed on ram (3) with sliding fit, ram (3) are fixed the up end of bottom plate (1), just pulley (7) are installed to the free end department of ram (3), steel wire (6) are along ram (3) are walked around extend downwards behind pulley (7) and link to each other with branch (13).

3. The measurement support for urban rail transit planning and drawing according to claim 2, wherein: the supporting rod (13) is a telescopic rod.

4. The measurement support for urban rail transit planning and drawing according to claim 2, wherein: the two opposite side walls of the sliding groove of the sliding rack (2) in sliding fit with the ram (3) and the groove bottom are provided with rollers (12), and the rollers (12) are in rolling contact with the two sides and the top surface of the ram (3).

5. The measurement support for urban rail transit planning and drawing according to claim 1, wherein: the sliding block is characterized by further comprising a driving part and a top plate (22) fixed with the bottom plate (1), the driving part comprises a rotating wheel (17) rotatably mounted at the edge of the top plate (22), after wheel shafts (15) and (8) of the rotating wheel (17) penetrate through the top plate (22) in a rotating fit mode, the bottom end of the rotating wheel is fixedly connected with an L-shaped rocker arm (9), the free end of the rocker arm (9) is vertically inserted into a strip hole of the sliding plate (10), one end of the sliding plate (10) is fixed to one of the sliding racks (2) on the upper portion, and therefore when the rotating wheel (17) rotates, the rocker arm (9) drives the sliding plate (10) to do linear motion to drive one of the sliding racks (2) to move along the direction of the ram (3).

6. The measurement support for urban rail transit planning and drawing according to claim 5, wherein: the top plate (22) is fixed above the bottom plate (1) through a pair of ejector rods (11), a circular threaded cylindrical protrusion (18) is arranged at the edge of the bottom plate (1), the wheel shafts (15) and (8) are rotatably installed in the protrusion (18), a limiting ring (19) is fixedly connected to the positions, close to the top end face of the protrusion (18), of the wheel shafts (15) and (8), and the limiting ring (19) is tightly pressed on the top end face of the protrusion (18) through a threaded gland (16) in threaded fit with the protrusion (18).

7. The measurement support for urban rail transit planning and drawing according to claim 6, wherein: and an operating wheel for rotating the screw gland (16) is fixedly sleeved outside the upper end of the screw gland (16).

8. The measurement support for urban rail transit planning and drawing according to any one of claims 5-7, wherein: the top plate (22) is provided with a connecting end connected with the measuring equipment, or the measuring equipment is fixedly connected through a vertical column (23) fixed in the center of the top plate (22).

9. The measurement support for urban rail transit planning and drawing according to any one of claims 5-7, wherein: the steel wire (6) is detachably connected with the support rod (13);

a sliding rod (24) is further installed at the end part of the sliding rack (2) in a sliding mode along the ram (3), one end, extending out of the ram (3), of the sliding rod (24) is hinged to one end of a turning rod (25), and the other end of the turning rod (25) is connected with the side face of the supporting rod (13) in a propping mode;

the two opposite support rods (13) are connected through a detachable top support spring (26) which is horizontally arranged, and the top support spring (26) always plays a role in separating and pushing the two support rods (13) towards two sides.