Construction site sand table for civil construction

Abstract

The utility model relates to the technical field of building sand tables, and provides a construction site sand table for civil construction, which comprises a main case, the inner surface of the main case is fixedly connected with a lining plate, the inside of the main case is rotatably connected with a positive and negative screw rod and extends out of one end, and the outer surface of the positive and negative screw rod is in threaded connection with two internal thread blocks. Limiting plates are fixedly connected to the bottoms of the internal thread blocks, limiting grooves are formed in the lining plate, the outer surfaces of the two limiting plates are movably embedded in the limiting grooves, a first shaft block is fixedly connected to the top of each internal thread block, and a first connecting rod is rotationally connected to the interior of each first shaft block. According to the utility model, the device is provided with a fence lifting structure, so that the sand table model can be effectively prevented from being artificially damaged, the model in the sand table can be adjusted by descending the fence, maintenance and adjustment can be carried out without dismounting or crossing the fence, the device is convenient to adjust and maintain, and the manual labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building sand table, especially to a construction site sand table for civil construction. BACKGROUND

[0002] The construction site sand table for civil construction has important functions in many aspects, can intuitively show the overall planning of the whole construction project, including the position, orientation and spacing of the building, and the distribution of supporting facilities such as roads, greenery and parking lots, helps the planners, designers and owners and other personnel to better understand the overall spatial relationship of the project, timely discovers the problems existing in the planning, such as unreasonable space utilization and poor traffic flow, so as to adjust and optimize, and the appearance design, internal structure and various details of the building, such as the position of doors and windows, the form of balcony and the building material, can be presented in the form of three-dimensional solid. The designer can more clearly explain the design concept and intention to the owner and the construction team through the sand table, and ensure that all parties have a consistent understanding of the design scheme.

[0003] However, the prior art such as Chinese publication number: CN208706129U, "a construction site sand table for civil construction", the utility model discloses a construction site sand table for civil construction, including support base, sliding slot and through slot, the upper side of support base is installed with bearing, and the upper side of bearing is fixed with support rod, the upper side of support rod is provided with first support frame, and the upper side of first support frame is fixed with telescopic rod on both sides, the upper side of telescopic rod is installed with second support frame, and the inside of second support frame is provided with first recess, the inside of first recess is installed with fixed band, the left side of sliding slot is fixed with second support frame, and the right side of sliding slot is provided with sliding rod, the right side of sliding rod is installed with placing plate, and the inside of placing plate is fixed with second recess.

[0004] However, the device does not set up a fence liftable structure, cannot effectively prevent artificial damage to the sand table model, cannot adjust the sand table internal model by lowering the fence, needs to disassemble or cross the fence to maintain and adjust, causes the device to be inconvenient to adjust and maintain, increases the artificial labor cost, the device does not set up a free movement fixing structure, cannot quickly move and fix the sand table main body, is inconvenient for the device to carry, needs a large amount of manual construction to place, causes the device to be inconvenient to use. UTILITY MODEL CONTENTS

[0005] The utility model discloses a purpose is to solve the prior art exists, cannot effectively prevent artificial damage sand table model, cannot through the drop of the enclosure to the sand table internal model is adjusted, needs to dismantle or cross the enclosure to carry out maintenance adjustment, lead to the device inconvenient adjustment and maintenance, increased manual labor cost, cannot quickly with sand table main part is removed and fixed, the device is inconvenient to carry, need a large number of manual construction to place, lead to the device inconvenient use problem.

[0006] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme: a construction site sand table for civil construction, including host casing, the inner surface fixed connection of host casing has the lining plate, the inside rotation of host casing is connected with positive and negative screw rod and extends one end, the outer surface screw connection of positive and negative screw rod has two internal thread blocks, the bottom fixed connection of internal thread block has the limiting board, the lining plate is opened and is equipped with the limiting groove, the outer surface of two limiting boards is movably embedded in the inside of limiting groove, the top fixed connection of internal thread block has the first axle block, the inside rotation of first axle block is connected with first connecting rod, the one end rotation of first connecting rod away from first axle block is connected with second axle block, and rotation screw will drive two internal thread blocks along the slotting direction of limiting groove and each other close, and one end of first connecting rod is driven through first axle block, and the other end of first connecting rod will pull lifting plate through second axle block, so that lifting plate, enclosure and both sides wedge block descend along the slotting direction of wedge groove.

[0007] As a preferred implementation, the top of the second axle block is fixedly connected with the lifting plate, the top of the lifting plate is fixedly connected with the enclosure, and the two sides of the lifting plate are fixedly connected with the wedge block. The inner surface of the host casing is provided with a wedge groove on both sides. The outer surface of the wedge block is movably embedded in the inside of the wedge groove. The lifting plate, the enclosure and the two sides of the wedge block can only move along the slotting direction of the wedge groove.

[0008] As a preferred implementation, the inner surface of the host casing is fixedly connected with a plurality of fixed rods, and the top of the plurality of fixed rods is fixedly connected with a pressure bearing plate. The pressure bearing plate is fixed in the inside of the host casing through the fixed rods.

[0009] As a preferred implementation, one side of the host casing is fixedly connected with a mounting sleeve, the inner surface of the mounting sleeve is fixedly connected with a motor, and the output end of the motor is fixedly connected with the one end of the positive and negative screw rod. The motor is fixed on one side of the host casing through the mounting sleeve.

[0010] As a preferred implementation, the inside of the host casing is rotatably connected with a rotating rod and extends one end, the outer surface of the rotating rod is fixedly connected with a driven crank, the one end away from the rotating rod of the driven crank is rotatably connected with a second connecting rod, the one end away from the driven crank of the second connecting rod is rotatably connected with a third axle block, and the other end of the second connecting rod will push the pressure plate through the third axle block.

[0011] As a preferred implementation form, the bottom of the third shaft block is fixedly connected with a pressure plate, the inside of the pressure plate is rotatably connected with a plurality of rollers, the rollers contact the ground, and then the device can be moved to the target position.

[0012] As a preferred implementation form, the two sides of the pressure plate are fixedly connected with positioning blocks, the inside surfaces of the main shell are provided with positioning grooves, and the outer surfaces of the positioning blocks are movably embedded in the inside of the positioning grooves; the pressure plate and the positioning block can only move along the slotting direction of the positioning groove.

[0013] As a preferred implementation form, one end of the rotating rod is fixedly connected with a driving crank, the end, away from the rotating rod, of the driving crank is rotatably connected with a hydraulic rod, and the end, away from the driving crank, of the hydraulic rod is rotatably connected to the outside of the main shell; the hydraulic rod works, and the rotating rod is driven to rotate in the main shell through the driving crank.

[0014] Compared with the prior art, the device has the advantages and positive effects that:

[0015] 1. The device is provided with a fence liftable structure, which can effectively prevent artificial damage to the sand table model, the inside model of the sand table is adjusted by lowering the fence, and the device is convenient to adjust and maintain, and the labor cost is reduced.

[0016] 2. The device is provided with a freely movable fixing structure, which can quickly move and fix the sand table body, and the device is convenient to carry and use without a large amount of manual construction and placement. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A three-dimensional structure schematic view of the site sand table for civil construction is provided.

[0018] Figure 2 A side structure schematic view of the site sand table for civil construction is provided.

[0019] Figure 3 A bottom structure schematic view of the site sand table for civil construction is provided.

[0020] Figure 4 A cross-sectional structure schematic view of the site sand table for civil construction is provided.

[0021] Figure 5 A disassembly structure schematic view of the site sand table for civil construction is provided.

[0022] Legend:

[0023] 1. Main housing; 2. Liner plate; 3. Positive and negative lead screws; 4. Internal thread block; 5. Limiting plate; 6. Limiting groove; 7. First shaft block; 8. First connecting rod; 9. Second shaft block; 10. Lifting plate; 11. Enclosure; 12. Wedge; 13. Wedge groove; 14. Fixing rod; 15. Pressure plate; 16. Mounting sleeve; 17. Motor; 18. Rotating rod; 19. Driven crank; 20. Second connecting rod; 21. Third shaft block; 22. Pressure plate; 23. Roller; 24. Positioning block; 25. Positioning groove; 26. Driven crank; 27. Hydraulic rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution: a construction site sand table for civil engineering, including a main body shell 1, a liner plate 2 fixedly connected to the inner surface of the main body shell 1, a positive and negative screw rod 3 rotatably connected inside the main body shell 1 and extending out one end, two internal threaded blocks 4 threadedly connected to the outer surface of the positive and negative screw rod 3, a limiting plate 5 fixedly connected to the bottom of the internal threaded block 4, a limiting groove 6 opened on the liner plate 2, the outer surfaces of the two limiting plates 5 movably embedded in the limiting groove 6, a first shaft block 7 fixedly connected to the top of the internal threaded block 4, a first connecting rod 8 rotatably connected inside the first shaft block 7, a second shaft block 9 rotatably connected to the end of the first connecting rod 8 away from the first shaft block 7, rotating the screw will drive the internal threaded block 4, the limiting plate 5 at the bottom of the internal threaded block 4 can only move along the groove direction of the upper limiting groove 6 on the liner plate 2.

[0026] like Figures 1 to 5 As shown, a lifting plate 10 is fixedly connected to the top of the two second shaft blocks 9, a barrier 11 is fixedly connected to the top of the lifting plate 10, and wedges 12 are fixedly connected to both sides of the lifting plate 10. Wedges 13 are provided on both sides of the inner surface of the main body housing 1. The outer surface of the wedges 12 is movably embedded in the inside of the wedges 13. The lifting plate 10, the barrier 11 and the wedges 12 on both sides can only move along the slotting direction of the wedges 13.

[0027] like Figures 1 to 5 As shown, multiple fixing rods 14 are fixedly connected to the inner surface of the main unit housing 1, and a pressure plate 15 is fixedly connected to the top of the multiple fixing rods 14. The pressure plate 15 is fixed inside the main unit housing 1 by the fixing rods 14.

[0028] like Figures 1 to 5 As shown, a mounting sleeve 16 is fixedly connected to one side of the main housing 1, and a motor 17 is fixedly connected to the inner surface of the mounting sleeve 16. The output end of the motor 17 is fixedly connected to one end of the extension of the positive and negative lead screw 3. When the motor 17 is powered on, it will drive the positive and negative lead screw 3 to rotate inside the main housing 1.

[0029] like Figures 1 to 5 As shown, a rotating rod 18 is rotatably connected inside the main housing 1 and extends out one end. A driven crank 19 is fixedly connected to the outer surface of the rotating rod 18. A second connecting rod 20 is rotatably connected to the end of the driven crank 19 away from the rotating rod 18. A third shaft block 21 is rotatably connected to the end of the second connecting rod 20 away from the driven crank 19. The driven crank 19, which rotates with the rotating rod 18, will drive one end of the second connecting rod 20.

[0030] like Figures 1 to 5 As shown, a pressure plate 22 is fixedly connected to the bottom of the third shaft block 21. Multiple rollers 23 are rotatably connected inside the pressure plate 22. When the rollers 23 contact the ground, the device can be moved to the target position.

[0031] like Figures 1 to 5 As shown, positioning blocks 24 are fixedly connected to both sides of the pressure plate 22, and positioning grooves 25 are opened on both sides of the inner surface of the main body shell 1. The outer surface of the positioning block 24 is movably embedded in the inside of the positioning groove 25, and the pressure plate 22 and the positioning block 24 can only move along the groove direction of the positioning groove 25.

[0032] like Figures 1 to 5 As shown, one end of the rotating rod 18 is fixedly connected to the drive crank 26, and the end of the drive crank 26 away from the rotating rod 18 is rotatably connected to the hydraulic rod 27. The end of the hydraulic rod 27 away from the drive crank 26 is rotatably connected to the outside of the main housing 1. The hydraulic rod 27 does work, which drives the rotating rod 18 to rotate inside the main housing 1 through the drive crank 26.

[0033] Working principle: First, the hydraulic rod 27 performs work, driving the rotating rod 18 to rotate inside the main housing 1 via the active crank 26. The driven crank 19, rotating with the rotating rod 18, drives one end of the second connecting rod 20. The other end of the second connecting rod 20 pushes the pressure plate 22 via the third shaft block 21, causing the pressure plate 22 and the positioning block 24 to move downwards along the slotted direction of the positioning groove 25, allowing the roller 23 to contact the ground. The device can then be moved to the target position. When maintenance or replacement of the model on the pressure plate 15 is required, the external power supply of the motor 17 can be activated. The motor 17 is fixed to one side of the main housing 1 via the mounting sleeve 16. After the motor 17 is powered on, it will... The rotating screw 3 rotates inside the main housing 1. The rotating screw will drive the internal thread block 4. The limiting plate 5 at the bottom of the internal thread block 4 can only move along the slotting direction of the upper limit groove 6 of the liner 2. Therefore, the rotating screw will drive the two internal thread blocks 4 to move closer to each other along the slotting direction of the limiting groove 6. And through the first shaft block 7, it will drive one end of the first connecting rod 8. The other end of the first connecting rod 8 will pull the lifting plate 10 through the second shaft block 9, so that the lifting plate 10, the enclosure 11 and the wedges 12 on both sides will descend along the slotting direction of the wedge 13. In this way, the model on the pressure plate 15 can be maintained and updated. The pressure plate 15 is fixed inside the main housing 1 by the fixing rod 14.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A construction site sand table for civil engineering, comprising a main housing (1), characterized in that, The inner surface of the main shell (1) is fixedly connected with a lining plate (2), the inside of the main shell (1) is rotatably connected with a forward and reverse screw rod (3) and extends out one end, the outer surface of the forward and reverse screw rod (3) is threadedly connected with two inner threaded blocks (4), the bottom of the inner threaded block (4) is fixedly connected with a limiting plate (5), the lining plate (2) is provided with a limiting groove (6), the outer surface of the two limiting plates (5) is movably embedded in the inside of the limiting groove (6), the top of the inner threaded block (4) is fixedly connected with a first shaft block (7), the inside of the first shaft block (7) is rotatably connected with a first connecting rod (8), the end, away from the first shaft block (7), of the first connecting rod (8) is rotatably connected with a second shaft block (9).

2. A construction site sand table for civil engineering according to claim 1, characterized in that: The top of the two second shaft blocks (9) is fixedly connected with a lifting plate (10), the top of the lifting plate (10) is fixedly connected with an enclosure (11), the two sides of the lifting plate (10) are fixedly connected with a wedge block (12), the inner surface of the two sides of the main shell (1) is provided with a wedge groove (13), and the outer surface of the wedge block (12) is movably embedded in the inside of the wedge groove (13).

3. A construction site sand table for civil engineering according to claim 2, characterized in that: The inner surface of the main shell (1) is fixedly connected with a plurality of fixed rods (14), and the top of the plurality of fixed rods (14) is fixedly connected with a pressure bearing plate (15).

4. A construction site sand table for civil engineering according to claim 3, characterized in that: One side of the main shell (1) is fixedly connected with a mounting sleeve (16), the inner surface of the mounting sleeve (16) is fixedly connected with a motor (17), and the output end of the motor (17) is fixedly connected to the end, extended out by the forward and reverse screw rod (3).

5. A construction site sand table for civil engineering according to claim 4, characterized in that: The inside of the main shell (1) is rotatably connected with a rotating rod (18) and extends out one end, the outer surface of the rotating rod (18) is fixedly connected with a driven crank (19), the end, away from the rotating rod (18), of the driven crank (19) is rotatably connected with a second connecting rod (20), and the end, away from the driven crank (19), of the second connecting rod (20) is rotatably connected with a third shaft block (21).

6. A construction site sand table for civil engineering according to claim 5, characterized in that: The bottom of the third shaft block (21) is fixedly connected with a pressure receiving plate (22), and the inside of the pressure receiving plate (22) is rotatably connected with a plurality of rollers (23).

7. A construction site sand table for civil engineering according to claim 6, characterized in that: The two sides of the pressure receiving plate (22) are fixedly connected with a positioning block (24), the inner surface of the two sides of the main shell (1) is provided with a positioning groove (25), and the outer surface of the positioning block (24) is movably embedded in the inside of the positioning groove (25).

8. A construction site sand table for civil engineering according to claim 7, characterized in that: The end, extended out by the rotating rod (18), is fixedly connected with a driving crank (26), the end, away from the rotating rod (18), of the driving crank (26) is rotatably connected with a hydraulic rod (27), and the end, away from the driving crank (26), of the hydraulic rod (27) is rotatably connected to the outside of the main shell (1).

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