A double-layer expandable engineering cost data display board for engineering cost

Abstract

The present application relates to the technical field of construction cost, and discloses a double-layered expandable construction cost data display board for construction cost, comprising a main display frame, a notch is provided inside the main display frame, two auxiliary display frames are provided inside the notch, and the two auxiliary display frames are hinged with extended display frames on one side away from each other, and the bottom surface of the main display frame is provided with two fitting grooves, and the inside of the two fitting grooves are hinged with two supporting legs. The double-layered expandable construction cost data display board for construction cost can be folded by installing the auxiliary display frame and the extended display frame, and the two can enter the notch to greatly reduce the overall volume, which is convenient for transportation and storage, and when placing the main display frame and the extended display frame, only the supporting legs and the supporting members need to be swung to stably support the whole, which is convenient and quick, and improves the convenience of users.

Description

Technical Field

[0001] The present application relates to the technical field of engineering cost, and specifically to a double-layer expandable engineering cost data display board for engineering cost. Background Art

[0002] Project cost refers to the estimated or actual construction costs of the project during the construction period, including construction and installation project costs, equipment and tools, tool purchase costs, other construction costs and contingency funds, etc. These costs are mainly composed of four parts: direct project costs, indirect costs, planned profits and taxes.

[0003] The existing patent (announcement number: CN215577376U) discloses a double-layer expandable engineering cost data display board for engineering cost, including a storage box, a first display rack and a fixed rack, a support rack is movably installed at the rear end of the fixed rack, a support rod is slidably installed between the support rack and the fixed rack, a storage box is movably installed on the top of the fixed rack, a display area is arranged at the front end of the storage box, a first display rack and a second display rack are slidably installed inside the storage box, the first display rack and the second display rack extend out of the storage box, and a sliding rack is fixedly installed at the rear end of the first display rack and the second display rack. The utility model forms a multi-layer display and a display area for use in combination to improve work efficiency by slidably installing the first display rack and the second display rack inside the storage box, and reducing damage caused by long-term use by slidably installing support columns at the rear ends of the first display rack and the second display rack, and cooperating with support bars and slide rods.

[0004] When the above-mentioned document is used, it is inconvenient to transport it because it is still large in size after being folded. At the same time, the structure is relatively complex and it is inconvenient to use. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present application provides a double-layer expandable engineering cost data display board for engineering cost, which has the advantages of improved convenience and solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a double-layer expandable engineering cost data display board for engineering cost, comprising a main display frame, a notch is provided inside the main display frame, two auxiliary display frames are provided inside the notch, and the two auxiliary display frames are hingedly connected to an extension display frame on one side away from each other, the bottom surface of the main display frame is provided with two fitting grooves, and the inside of the two fitting grooves are hinged with two supporting legs, the bottom surfaces of the two extended display frames are provided with notches, and the inner walls of the two notches are hinged with support members.

[0007] Through the above solution, after installing two extended display racks, they can be folded together with the auxiliary display rack and put into the slot, thereby reducing the overall volume and facilitating transportation.

[0008] Furthermore, slots are provided on the upper surfaces of the two auxiliary display frames, the two slots completely penetrate the main display frame, and pillars are inserted into the two slots.

[0009] Through the above solution, the cooperation between the mounting posts and the slots can position the auxiliary display frame to prevent the auxiliary display frame from swinging.

[0010] Furthermore, both left and right side surfaces of the main display frame are hinged with limit frames, and the two limit frames are symmetrical.

[0011] Through the above solution, installing the limiting frame can limit the position of the folded secondary display frame to prevent sliding after folding.

[0012] Furthermore, the inner bottom wall of the notch is provided with two slide grooves, and the two auxiliary display racks are slidably connected to the slide grooves adjacent thereto.

[0013] Through the above solution, the slide groove is provided to limit the position of the auxiliary display rack, so that the auxiliary display rack can slide along the track of the slide groove.

[0014] Furthermore, a limiting groove is provided between the two extended display racks and the adjacent extended display racks, and the interiors of the two limiting grooves are slidably connected to limiting blocks.

[0015] Through the above solution, the cooperation between the installation limit block and the limit groove can limit the position between the auxiliary display rack and the extended display rack, thereby preventing the extended display rack from swinging during use.

[0016] Furthermore, the inner top walls of the two notches are each provided with a sliding groove, the interiors of the two sliding grooves are slidably connected with a clamping piece, the upper surfaces of the two clamping pieces are fixedly connected with a spring, and the other ends of the two springs are fixedly connected to the inner wall of the sliding groove adjacent to them.

[0017] Through the above solution, the cooperation between the mounting clamp and the spring can limit the support member after the support member is extended, so that the support member can remain stable and can stably support the extended display stand.

[0018] Furthermore, a handle is fixedly connected to the upper surface of the main display frame, and a storage bag is installed on the back of the main display frame.

[0019] Through the above solution, installing the storage bag can facilitate the placement of materials, and installing the handle can facilitate the user to lift the whole after folding.

[0020] Furthermore, the bottom ends of the two supporting legs are both made of rubber material, the two springs are both in a reset state, and the two clamps are in contact with the supporting members adjacent to them.

[0021] Through the above solution, the bottom ends of the supporting legs are made of rubber material, which can increase the friction with the ground and prevent the main display stand from shifting after being placed.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] The double-layer expandable engineering cost data display board of the engineering cost can be folded by installing the auxiliary display frame and the extension display frame. After the auxiliary display frame and the extension display frame are inserted into the slot, the overall volume is greatly reduced, which is convenient for transportation and storage. When the main display frame and the extension display frame are placed, only the supporting legs and the supporting parts need to be swung to stably support the overall structure. This is convenient and quick, and improves the convenience of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall structure of this application is cut away Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the overall structure of this application;

[0026] Figure 3 The overall structure of this application is cut away Figure 2 ;

[0027] Figure 4 This is a schematic diagram of the main display frame structure of this application.

[0028] In the figure:

[0029] 1. Main display stand; 2. Notch; 3. Auxiliary display stand; 4. Extended display stand; 5. Fitting groove; 6. Support leg; 7. Notch; 8. Support piece; 9. Slot; 10. Insert column; 11. Limiting frame; 12. Slide groove; 13. Limiting groove; 14. Limiting block; 15. Sliding groove; 16. Card; 17. Spring; 18. Handle; 19. Storage bag. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] See also Figure 1 , Figure 2 and Figure 3 In the present embodiment, a double-layer expandable engineering cost data display board of engineering cost includes a main display frame 1, a notch 2 is provided inside the main display frame 1, two auxiliary display frames 33 are provided inside the notch 2, and the two auxiliary display frames 3 are hinged with extended display frames 4 on the sides away from each other. The bottom surface of the main display frame 1 is provided with two fitting grooves 5, and the insides of the two fitting grooves 5 are hinged with two supporting legs 6. The bottom surfaces of the two extended display frames 4 are provided with notches 7, and the inner walls of the two notches 7 are hinged with support members 8. By installing the auxiliary display frame 3 and the extended display frame 4, the two can be folded, and the two can enter the notch 2 to greatly reduce the overall volume, which is convenient for transportation and storage. When placing the main display frame 1 and the extended display frame 4, only the supporting legs 6 and the supporting members 8 need to be swung to stably support the whole, which is convenient and quick, thereby improving the convenience of users.

[0032] See also Figure 1 , Figure 3 and Figure 4 , slots 9 are provided on the upper surfaces of the two sub-display frames 3, and the two slots 9 completely penetrate the main display frame 1. Columns 10 are inserted in the two notches 2. The cooperation of the installed columns 10 and the slots 9 can position the sub-display frames 3 to prevent the sub-display frames 3 from swinging. The left and right sides of the main display frame 1 are hinged with limit frames 11, and the two limit frames 11 are symmetrical. The installation of the limit frames 11 can limit the folded sub-display frames 3 to prevent sliding after folding. Two slide grooves 12 are provided on the inner bottom wall of the notch 2. The two sub-display frames 3 are slidably connected to the slide grooves 12 adjacent to them. The opening of the slide grooves 12 can limit the sub-display frames 3 so that the sub-display frames 3 can slide along the track of the slide grooves 12.

[0033] See also Figure 1 , Figure 2 and Figure 3, a limiting groove 13 is provided between the two extended display racks 4 and the extended display racks 4 adjacent to them, and the insides of the two limiting grooves 13 are slidably connected to the limiting blocks 14, and the cooperation of the installation limiting blocks 14 and the limiting grooves 13 can limit the auxiliary display rack 3 and the extended display rack to prevent the extended display rack 4 from swinging during use, and the inner top walls of the two notches 7 are provided with sliding grooves 15, and the insides of the two sliding grooves 15 are slidably connected to the clamps 16, and the upper surfaces of the two clamps 16 are fixedly connected to springs 17, and the other ends of the two springs 17 are fixedly connected to the inner walls of the sliding grooves 15 adjacent to them, and the cooperation of the installation clamps 16 and the springs 17 can After the support member 8 is extended, the support member 8 is limited so that the support member 8 can remain stable and can stably support the extended display frame 4. A handle 18 is fixedly connected to the upper surface of the main display frame 1, and a storage bag 19 is installed on the back of the main display frame 1. The installation of the storage bag 19 can facilitate the placement of materials, and the installation of the handle 18 can facilitate the user to lift the whole after folding. The bottom ends of the two support legs 6 are both set to rubber material, and the two springs 17 are both in a reset state. The two clamps 16 are in contact with the support member 8 close to them. The bottom ends of the support legs are set to rubber material to increase the friction with the ground and prevent the main display frame 1 from shifting after placement.

[0034] In the present embodiment, a double-layer expandable engineering cost data display board of engineering cost can be folded by installing the auxiliary display frame 3 and the extension display frame 4. After the two can enter the slot 2, the overall volume is greatly reduced, which is convenient for transportation and storage. When placing the main display frame 1 and the extension display frame 4, only the supporting legs 6 and the supporting members 8 need to be swung to stably support the whole, which is convenient and quick, thereby improving the convenience of users.

[0035] The working principle of the above embodiment is as follows: when in use, firstly, the two supporting legs 6 are swung so that the two supporting legs 6 can support the main display frame 1, and then the two auxiliary display frames 3 are slid along the slide groove 12 so that the two auxiliary display frames 3 can be extended, and the two extended display frames 4 are swung, and then the sliding limit block 14 enters the limit groove 13 so that the extended display frame 4 can be stably connected to the auxiliary display, and the two plug posts 10 are inserted into the slot 9 so that the auxiliary display frame 3 is connected to the main display frame 1, and when the auxiliary display frame 3 and the extended display frame 4 are unfolded, the two supporting members 8 are swung so that the two supporting members 8 and the extended display frame 4 are connected. When the support member 8 is swung, the clamp 16 will pop out under the push of the spring 17 to limit the support member 8, so that the support member 8 can stably support the extended display frame 4. When the whole is folded, the clamp 16 is reset to make the support member 8 return to the notch 7, and the limit block 14 is reset. Then the extended display frame 4 is folded to overlap the extended display frame 4 with the auxiliary display frame 3, and the plug column 10 is pulled out to reset the auxiliary display frame 3 along the slide groove 12. At this time, the auxiliary display frame 3 and the extended display frame 4 will enter the main display frame 1. After the two can enter the slot 2, the overall volume is greatly reduced, which is convenient for transportation and storage.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A double-layer expandable engineering cost data display board for engineering cost, comprising a main display frame (1), characterized in that: The main display frame (1) is provided with a notch (2) inside, and two auxiliary display frames (3) (3) are provided inside the notch (2), and the two auxiliary display frames (3) are hingedly connected to an extension display frame (4) on the side faces away from each other, and the bottom surface of the main display frame (1) is provided with two fitting grooves (5), and the insides of the two fitting grooves (5) are hingedly connected to two supporting legs (6), and the bottom surfaces of the two extension display frames (4) are provided with notches (7), and the inner walls of the two notches (7) are hingedly connected to support members (8).

2. The double-layer expandable engineering cost data display board of claim 1 is characterized by: The upper surfaces of the two auxiliary display frames (3) are each provided with a slot (9), the two slots (9) completely penetrate the main display frame (1), and the two notches (2) are each inserted with a plug post (10).

3. The double-layer expandable engineering cost data display board of claim 1 is characterized by: The left and right sides of the main display frame (1) are both hingedly connected to limit frames (11), and the two limit frames (11) are symmetrical.

4. The double-layer expandable engineering cost data display board of claim 1 is characterized by: The inner bottom wall of the notch (2) is provided with two slide grooves (12), and the two auxiliary display racks (3) are slidably connected to the adjacent slide grooves (12).

5. The double-layer expandable engineering cost data display board of claim 1 is characterized by: A limiting groove (13) is provided between the two extended display racks (4) and the adjacent extended display rack (4), and the interiors of the two limiting grooves (13) are both slidably connected to the limiting blocks (14).

6. The double-layer expandable engineering cost data display board of claim 1 is characterized by: The inner top walls of the two notches (7) are each provided with a sliding groove (15), the interiors of the two sliding grooves (15) are slidably connected with a clamping piece (16), the upper surfaces of the two clamping pieces (16) are each fixedly connected with a spring (17), and the other ends of the two springs (17) are each fixedly connected to the inner wall of the sliding groove (15) adjacent thereto.

7. The double-layer expandable engineering cost data display board of claim 1 is characterized by: A handle (18) is fixedly connected to the upper surface of the main display frame (1), and a storage bag (19) is installed on the back of the main display frame (1).

8. The double-layer expandable engineering cost data display board of claim 6 is characterized by: The bottom ends of the two support legs (6) are both made of rubber material, the two springs (17) are both in a reset state, and the two clamping members (16) are both in contact with the support members (8) adjacent thereto.

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