Movable display screen for engineering cost

Abstract

The utility model discloses a movable display screen for engineering cost, and belongs to the technical field of display screens. The folding box comprises a box body, a lifting assembly and a first-stage folding assembly, a baffle is arranged in the box body, the lifting assembly is installed between one side of the inner wall of the box body and the baffle, the lifting assembly comprises a first hydraulic push rod, and one end of the first hydraulic push rod is fixedly connected to the bottom face of the inner wall of the box body; a supporting rod is fixedly connected to the moving end of the first hydraulic push rod, a cavity is formed in the supporting rod, two notches are formed in the supporting rod and communicate with the cavity, the first-stage folding assembly comprises a servo motor, the servo motor is installed in the cavity, a motor shaft at the output end of the servo motor is fixedly connected with a rotating shaft, and the rotating shaft is matched with a cam. And the other end of the connecting rod extends out of the notch. The folding assembly is arranged to fold the display screen, the display screen is stored in the box body through the lifting assembly, and the problems that the display screen is large in size and inconvenient to carry are solved.

Description

Technical Field

[0001] This utility model relates to the field of display screen technology, specifically a mobile display screen for engineering cost estimation. Background Technology

[0002] Construction cost refers to the estimated or actual construction expenses incurred during the construction period of a project. The process of predicting, planning, controlling, calculating, analyzing, and evaluating construction costs by comprehensively applying knowledge and skills from management, economics, and engineering technology is called construction cost management. Predicting or determining construction costs and their components according to procedures, methods, and bases stipulated by laws, regulations, and standards is called construction cost pricing. The basis for construction cost pricing includes engineering measurement and pricing standards, engineering pricing quotas, and construction cost information related to the pricing content, methods, and price standards. When budgeting and presenting construction costs, display screens are needed to facilitate the presentation of budget data. However, existing construction cost display screens are bulky and inconvenient to carry. Utility Model Content

[0003] The purpose of this utility model is to provide a mobile display screen for engineering cost estimation, which is equipped with a folding component to fold the display screen and a lifting component to store the display screen into a box, thus solving the problem that the cost estimation display screen is too large and inconvenient to carry.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model is a mobile display screen for engineering cost estimation, including a box, a lifting component and a first-stage folding component. A baffle is provided inside the box, and a lifting component is installed between one side of the inner wall of the box and the baffle.

[0006] The lifting assembly includes a first hydraulic push rod, one end of which is fixedly connected to the bottom surface of the inner wall of the box. A support rod is fixedly connected to the moving end of the first hydraulic push rod. A cavity is opened on the support rod, and two slots are opened on the support rod, which are connected to the cavity.

[0007] The first-stage folding assembly includes a servo motor, which is installed in the cavity. The motor shaft at the output end of the servo motor is fixedly connected to the rotating shaft. The rotating shaft cooperates with a cam, and the cam is fixedly connected to one end of a connecting rod. The other end of the connecting rod extends out from the slot.

[0008] Furthermore, there are two cams and one servo motor. The number of teeth on the two cams is three-quarters that of a normal gear, and the two cams mesh.

[0009] Furthermore, the other end of the connecting rod is fixedly connected to the back of the first display screen, and the first display screen is hinged to the second display screen via a hinge.

[0010] Furthermore, a convex shaft is provided at the top of the first display screen, and a sliding groove is provided at the top of the second display screen.

[0011] Furthermore, the secondary folding assembly includes a second hydraulic push rod, one end of which is hinged to a cam shaft, and a slider is mounted on the moving end of the second hydraulic push rod, the slider being slidably engaged in a groove.

[0012] Furthermore, four casters are installed at the bottom of the box.

[0013] This utility model has the following beneficial effects:

[0014] This utility model makes it easier to move the display screen by installing universal wheels at the bottom of the box. It is equipped with a lifting component, which controls the extension and retraction of the display screen into or out of the box by the extension and retraction of the first hydraulic push rod. It is also equipped with a first-level folding component and a second-level folding component, which fold the four display screens together to reduce the overall size of the display screen, reduce the space required to place the display screen, and facilitate movement and transportation.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] Figure 1 This is a structural diagram of a display screen for storage.

[0017] Figure 2 A schematic diagram of the unfolded display screen;

[0018] Figure 3 This is a cross-sectional structural diagram of the display screen;

[0019] Figure 4 This is a magnified view of a portion of point A;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the cavity.

[0021] In the diagram: 1. Box body; 2. Lifting assembly; 3. First-stage folding assembly; 4. First display screen; 5. Second-stage folding assembly; 6. Second display screen; 7. Casters; 101. Baffle; 201. First hydraulic push rod; 202. Support rod; 203. Cavity; 204. Groove; 301. Servo motor; 302. Rotating shaft; 303. Cam; 304. Connecting rod; 401. Cam shaft; 501. Second hydraulic push rod; 502. Slider; 601. Slide groove. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] Please see Figure 1-5 This utility model provides a technical solution: a mobile display screen for engineering cost estimation, including a box 1, a baffle 101 inside the box 1, a lifting component 2 installed between one side of the inner wall of the box 1 and the baffle 101, and four casters 7 installed at the bottom of the box 1.

[0025] In this embodiment, the lifting assembly 2 is fixed to the inner wall of the housing 1 and the baffle 101, and casters 7 are installed at the bottom of the housing 1 to facilitate the movement of the display screen.

[0026] The lifting assembly 2 includes a first hydraulic push rod 201. One end of the first hydraulic push rod 201 is fixedly connected to the bottom surface of the inner wall of the housing 1. A support rod 202 is fixedly connected to the moving end of the first hydraulic push rod 201. A cavity 203 is opened on the support rod 202. Two slots 204 are opened on the support rod 202, and the slots 204 are connected to the cavity 203.

[0027] In this embodiment, the display screen extends or retracts into the housing 1 by controlling the extension and retraction of the first hydraulic push rod 201. The cavity 203 provides more installation space for the first-level folding assembly 3 to facilitate the folding of the display screen.

[0028] The first-stage folding assembly 3 includes a servo motor 301, which is installed inside the cavity 203. The motor shaft at the output end of the servo motor 301 is fixedly connected to a rotating shaft 302. The rotating shaft 302 engages with a cam 303. There are two cams 303 and one servo motor 301. The number of teeth on the two cams 303 is three-quarters that of a normal gear. The two cams 303 mesh. One end of the cam 303 is fixedly connected to a connecting rod 304, and the other end of the connecting rod 304 extends from the slot 204. The other end of the connecting rod 304 is fixedly connected to the back of the first display screen 4. The first display screen 4 is hinged to the second display screen 6 via a hinge. The top of the first display screen 4 is provided with a convex shaft 401. The top of the second display screen 6 is provided with a sliding groove 601. The secondary folding component 5 includes a second hydraulic push rod 501. One end of the second hydraulic push rod 501 is hinged to the convex shaft 401. A slider 502 is installed on the moving end of the second hydraulic push rod 501. The slider 502 is slidably engaged in the sliding groove 601.

[0029] In this embodiment, a servo motor 301 drives one cam 303 to rotate, which in turn drives another cam 303 to rotate in the opposite direction, causing the two first display screens 4 to unfold into a plane. When the two first display screens 4 are fully unfolded, the second hydraulic push rod 501 extends, and the slider 502 slides in the slide groove 601. When the slider 502 contacts the inner wall on one side of the slide groove 601, the second display screen 6 begins to unfold. By folding the four display screens, the overall volume of the display screen is reduced, the space required to place the display screen is reduced, and it is easier to move and transport.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A mobile display screen for construction cost engineering, characterized by: Including box (1), the baffle (101) is arranged in the box (1), and the lifting assembly (2) is installed between the inner wall of the box (1) and the baffle (101) on one side. The lifting assembly (2) includes a first hydraulic push rod (201), one end of the first hydraulic push rod (201) is fixedly connected to the bottom surface of the inner wall of the box (1), a support rod (202) is fixedly connected to the moving end of the first hydraulic push rod (201), a cavity (203) is formed in the support rod (202), and two notches (204) are formed in the support rod (202) and are communicated with the cavity (203). Further comprising a first folding assembly (3), the first folding assembly (3) includes a servo motor (301), the servo motor (301) is installed in the cavity (203), the output shaft of the servo motor (301) is fixedly connected with a rotating shaft (302), the rotating shaft (302) is matched with a cam (303), the cam (303) is fixedly connected with one end of a connecting rod (304), and the other end of the connecting rod (304) extends out of the notch (204).

2. The mobile display screen for construction cost engineering according to claim 1, characterized in that, The cam (303) is provided with two, the servo motor (301) is provided with one, the number of teeth of the two cams (303) is three fourths of that of a normal gear, and the two cams (303) are engaged.

3. The mobile display screen for construction cost engineering according to claim 1, characterized in that, The other end of the connecting rod (304) is fixedly connected with the back of the first display screen (4), and the first display screen (4) is hingedly arranged with a second display screen (6).

4. The mobile display screen for construction cost engineering according to claim 3, characterized in that, The first display screen (4) is provided with a convex shaft (401) on the top, and the second display screen (6) is provided with a sliding groove (601) on the top.

5. The mobile display screen for construction cost engineering according to claim 4, characterized in that, Further comprising a second folding assembly (5), the second folding assembly (5) includes a second hydraulic push rod (501), one end of the second hydraulic push rod (501) is hingedly arranged with the convex shaft (401), a sliding block (502) is installed on the moving end of the second hydraulic push rod (501), and the sliding block (502) is slidably connected in the sliding groove (601).

6. The mobile display screen for construction cost engineering according to claim 1, characterized in that, The box (1) is provided with four universal wheels (7) on the bottom.

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