CN211319598U

CN211319598U - City planning model device

Info

Publication number: CN211319598U
Application number: CN202020344484.2U
Authority: CN
Inventors: 王学斌; 董慧; 杨向艳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-08-21
Anticipated expiration: 2030-03-18

Abstract

The utility model relates to the technical field of city planning, and discloses a city planning model device, which comprises a base, wherein two sides of the top surface of the base are fixedly connected with vertical plates, two vertical plates are penetrated and connected by a rotating shaft, a driving bevel gear is meshed with a driven bevel gear, the top end of the rotating shaft is fixedly connected with a screw rod, a ball nut is sleeved on the screw rod, the top parts of two connecting plates are respectively and fixedly connected with two sides of the bottom part of a tray, the top ends of two lower supporting plates are respectively hinged with the bottom ends of two upper supporting plates through a straight shaft, the front side and the rear side of the lower bottom surface of the tray are respectively and fixedly connected with upper fixed hinged supports, the top end of the upper supporting plate is hinged with the upper fixed hinged supports, one of the lower supporting plates is hinged with a pawl, the pawl is meshed with a ratchet, and the tray can move up and down at, an auxiliary supporting structure can be arranged after the tray is lifted through the matching between the pawl and the ratchet.

Description

City planning model device

Technical Field

The utility model relates to a city planning technical field especially relates to a city planning model device.

Background

With the development of science and technology, the living standard of people is increasingly improved, so that the urbanization is continuously and rapidly developed, different building floors and cities are displayed in front of people, and the initial planning of the urbanization is demonstrated through a sand table model.

In the process of implementing the present invention, the inventor finds that the following problems are still not solved in the prior art, and the city planning model device is not so stable in ascending or descending movement and may shake, so that some models on the city planning model device shift positions or fall.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems existing in the prior art and providing a city planning model device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a city planning model device comprises a base, wherein two sides of the top surface of the base are fixedly connected with vertical plates, the two vertical plates are connected through a rotating shaft, two ends of the rotating shaft are fixedly connected with a driving bevel gear, the other end of the rotating shaft is fixedly connected with a rotating disc, the tops of the vertical plates are fixedly connected with a transverse plate, radial thrust bearings are embedded on the transverse plate, rotating shafts are inserted into inner rings of the radial thrust bearings, the bottom ends of the rotating shafts are fixedly connected with driven bevel gears, the driving bevel gears are meshed with the driven bevel gears, the top ends of the rotating shafts are fixedly connected with lead screws, ball nuts are sleeved on the lead screws, one sides of the ball nuts are fixedly connected with connecting plates, the tops of the two connecting plates are respectively and fixedly connected with two sides of the bottom of a tray, the front side and the rear side of the top surface of, the upper end of the lower fixed hinge support is hinged to the bottom of the upper support plate, the top ends of the two lower support plates are hinged to the bottom ends of the two upper support plates through a straight shaft respectively, the front side and the rear side of the lower bottom surface of the tray are fixedly connected with the upper fixed hinge support, the top end of the upper support plate is hinged to the upper fixed hinge support, a clamping seat is fixedly connected to the top surface of the base, ratchets are arranged on the clamping seat, one of the ratchets is hinged to the lower support plate and meshed with the ratchets, and universal wheels are fixedly connected to the bottom.

Preferably, the diameter of the driving bevel gear is one half and five times of the diameter of the driven bevel gear, and the number of teeth of the driven bevel gear is three quarters of the number of teeth of the driving bevel gear.

Preferably, a rolling bearing is embedded at the connecting position of the transverse plate and the rotating shaft, and the rolling bearing is sleeved on the rotating shaft.

Preferably, a triangular rib plate is fixedly connected to the connecting position of the vertical plate and the transverse plate.

Preferably, the number of the ratchet teeth is eleven, and the bevel angle of the ratchet teeth is sixty degrees.

Preferably, one end of the pawl is shaped like a half-moon tooth.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a rotation of pivot drives drive bevel gear, then drive bevel gear drives driven bevel gear, and driven bevel gear passes through the axis of rotation and drives the lead screw, makes reciprocating at the uniform velocity of tray through the cooperation between lead screw and the ball nut, keeps both ends steady.

(2) The utility model discloses a straight axle is articulated with the top of two bottom suspension faggings and the bottom of two last backup pads respectively, and articulated on one of them bottom suspension fagging have the pawl, and cooperation through between pawl and the ratchet makes the tray rise after can have an auxiliary stay structure.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a front cross-sectional view of the structure of the present invention;

fig. 3 is a front sectional view of the structure clamping seat of the present invention.

In the figure: 1. a base; 2. a vertical plate; 3. a rotating shaft; 4. a turntable; 5. a transverse plate; 6. a drive bevel gear; 7. a radial thrust bearing; 8. a rotating shaft; 9. a driven bevel gear; 10. a screw rod; 11. a ball nut; 12. a connecting plate; 13. a tray; 14. a lower fixed hinged support; 15. a lower support plate; 16. a straight shaft; 17. an upper support plate; 18. an upper fixed hinged support; 19. a card holder; 20. A ratchet; 21. a pawl; 22. a universal wheel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a city planning model device comprises a base 1, wherein two sides of the top surface of the base 1 are fixedly connected with vertical plates 2, two vertical plates 2 are connected with each other through a rotating shaft 3, two ends of the rotating shaft 3 are fixedly connected with driving bevel gears 6, the other end of the rotating shaft 3 is fixedly connected with a rotating disc 4, the tops of the vertical plates 2 are fixedly connected with a transverse plate 5, radial thrust bearings 7 are embedded on the transverse plate 5, the radial thrust bearings 7 can bear axial loads and can play a supporting role and smoothly rotate, rotating shafts 8 are inserted into the inner rings of the radial thrust bearings 7, driven bevel gears 9 are fixedly connected with the bottom ends of the rotating shafts 8, the driving bevel gears 6 are meshed with the driven bevel gears 9, the diameter of the driving bevel gears 6 is one-fifth of the diameter of the driven bevel gears 9, and the number of teeth of the driven bevel gears 9 is three, the transmission is more convenient, a plurality of turns are not needed, the effect of speed increase is achieved, the time is saved, a rolling bearing is inlaid at the joint of the transverse plate 5 and the rotating shaft 8, the rolling bearing is sleeved on the rotating shaft 8, the transmission is more stable, a triangular rib plate is fixedly connected at the joint of the vertical plate 2 and the transverse plate 5, the triangular rib plate can bear larger acting force due to the stability of the triangle, the operation is more stable, the service life is longer, the top end of the rotating shaft 8 is fixedly connected with a screw rod 10, a ball nut 11 is sleeved on the screw rod 10, one side of the ball nut 11 is fixedly connected with a connecting plate 12, the tops of the two connecting plates 12 are respectively and fixedly connected with the two sides of the bottom of a tray 13, the front side and the back side of the top surface of the base 1 are respectively and fixedly connected with a lower fixed hinge support 14, the lower fixed hinge support 14 is hinged with a lower support, so that the two lower supporting plates 15 can synchronously operate, the front side and the rear side of the lower bottom surface of the tray 13 are fixedly connected with upper fixed hinge supports 18, the top end of the upper supporting plate 17 is hinged with an upper fixed hinge support 18, the top surface of the base 1 is fixedly connected with a clamping seat 19, the clamping seat 19 is provided with a ratchet 20, one of the lower supporting plates 15 is hinged with a pawl 21, the pawl 21 is meshed with the ratchets 20, the bottom surface of the base 1 is fixedly connected with a universal wheel 22 which is convenient for moving when in installation, the number of the ratchets 20 is eleven, the inclined angle of the ratchet 20 is sixty degrees, one end of the pawl 21 is half-moon-shaped, so that the pawl 21 can be smoothly clamped into the ratchet 20, the top ends of the two lower supporting plates 15 are respectively hinged with the bottom ends of the two upper supporting plates 17 through a straight shaft 16, and one lower supporting plate 15 is hinged with a pawl 21, an auxiliary support structure is provided after the tray 13 is raised by the cooperation between the pawls 21 and the ratchet teeth 20.

The utility model discloses in, when the user used the device, drive two drive bevel gears 6 in the pivot 3 through rotary turntable 4, drive bevel gear 6 and driven bevel gear 9 meshing, driven bevel gear 9 passes through axis of rotation 8 and drives lead screw 10, make through lead screw 10 and ball nut 11 cooperation and can reciprocate with tray 13 on the connecting plate 12, it is articulated with two top of lower backup pad 15 and two bottom of going up backup pad 17 respectively through a straight axle 16, and it has pawl 21 to articulate on one of them lower backup pad 15, cooperation through between pawl 21 and the ratchet 20 makes tray 13 rise after can have an auxiliary stay structure, make its work that can be more stable.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The city planning model device comprises a base (1) and is characterized in that risers (2) are fixedly connected to two sides of the top surface of the base (1), two risers (2) are connected through a rotating shaft (3), a driving bevel gear (6) is fixedly connected to two ends of the rotating shaft (3), a rotating disc (4) is fixedly connected to the other end of the rotating shaft (3), a transverse plate (5) is fixedly connected to the top of each riser (2), a radial thrust bearing (7) is embedded on each transverse plate (5), a rotating shaft (8) is inserted into an inner ring of each radial thrust bearing (7), a driven bevel gear (9) is fixedly connected to the bottom end of each rotating shaft (8), the driving bevel gear (6) is meshed with the driven bevel gear (9), a lead screw (10) is fixedly connected to the top end of each rotating shaft (8), and a ball nut (11) is sleeved on each lead screw (10), one side of the ball nut (11) is fixedly connected with connecting plates (12), the tops of the two connecting plates (12) are respectively and fixedly connected with the two sides of the bottom of the tray (13), the front side and the rear side of the top surface of the base (1) are respectively and fixedly connected with lower fixed hinge supports (14), the lower fixed hinge supports (14) are hinged with lower supporting plates (15), the top ends of the two lower supporting plates (15) are respectively hinged with the bottom ends of the two upper supporting plates (17) through a straight shaft (16), the front side and the rear side of the lower bottom surface of the tray (13) are respectively and fixedly connected with upper fixed hinge supports (18), the top ends of the upper supporting plates (17) are hinged with the upper fixed hinge supports (18), the top surface of the base (1) is fixedly connected with a clamping seat (19), the clamping seat (19) is provided with ratchet teeth (20), one of the lower supporting plates (15) is hinged, and the pawl (21) is meshed with the ratchet (20), and the bottom surface of the base (1) is fixedly connected with a universal wheel (22).

2. A city planning model arrangement according to claim 1, wherein the diameter of the drive bevel gear (6) is one half and five times the diameter of the driven bevel gear (9), and the number of teeth of the driven bevel gear (9) is three quarters of the number of teeth of the drive bevel gear (6).

3. The city planning model device according to claim 1, wherein a rolling bearing is embedded at the connection position of the transverse plate (5) and the rotating shaft (8), and the rolling bearing is sleeved on the rotating shaft (8).

4. A city planning model arrangement according to claim 1, wherein a triangular rib plate is fixedly connected to the connection between the vertical plate (2) and the horizontal plate (5).

5. A city planning model arrangement according to claim 1, wherein the number of ratchet teeth (20) is eleven and the bevel angle of the ratchet teeth (20) is 60 degrees.

6. A city planning model arrangement according to claim 1, wherein one end of the pawl (21) is half-moon shaped.