Folding goods shelf for prefabricated parts

Abstract

The utility model relates to the technical field of goods shelves, and discloses a folding goods shelf for prefabricated parts, which comprises two placing plates, fixing rods are inserted into four corners of the top surface of the upper placing plate in a sliding manner, supporting sleeves are inserted into four corners of the top surface of the lower placing plate in a sliding manner, folding structures are arranged on the top surfaces of the placing plates, and the folding structures are arranged on the top surfaces of the placing plates. Through the arrangement of the folding structure, a worker starts a winch to loosen a traction rope, starts a driving motor to drive a threaded sleeve to rotate to jack a fixed rod to ascend, starts the winch to contract the traction rope, and enables the traction rope to lift the two placing plates, so that the goods shelf is changed into an unfolded state from a folded state; a worker starts a winch to release a traction rope, so that the two placement plates descend and are folded together, a driving motor is started to rotate reversely to drive a threaded sleeve to rotate, a screw drives a fixing rod to retract into a supporting sleeve, folding of the goods shelf is achieved, operation is convenient and fast, and the worker can rapidly unfold and fold the goods shelf when using the goods shelf.

Description

Technical Field

[0001] The utility model relates to the technical field of shelves, in particular to a folding shelf for precast components. Background Technique

[0002] At present, the country vigorously promotes green buildings and prefabricated buildings, and PC components have been more and more widely used in the construction industry. PC components, also known as precast concrete parts, such as precast reinforced concrete column foundations, precast steel structure steel column foundations, reinforced concrete foundations for street lamp billboard columns, precast floor components, precast wallboard components, etc., overcome the defects of traditional cast-in-place concrete that require on-site formwork making, on-site pouring and on-site curing, and help to speed up the construction progress and ensure the quality of components. Therefore, precast concrete parts are widely used in the fields of construction, transportation, water conservancy, etc.

[0003] An existing folding shelf for precast components (publication number: CN212139807U) has at least the following drawbacks: the above device disassembles the upper connecting rod, the second vertical reinforcing rod, and the upper ends of the diagonal connecting rods from the upper frame, disassembles the upper end of the second vertical connecting rod from the transverse connecting rod of the upper frame 1, disassembles one end of the transverse reinforcing rod from the upper connecting rod, and the other end is still connected to the second vertical connecting rod, and then folds the shelf through a plurality of folding mechanisms. However, when folding the shelf, it is necessary to first disassemble a plurality of parts and then use a plurality of folding mechanisms for folding. The operation is cumbersome and complex, time-consuming and laborious, and not convenient for the staff to operate, resulting in difficulty for the staff to quickly unfold the shelf when placing precast components. For this reason, we propose the present utility model. Summary of the Utility Model

[0004] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and to propose a folding shelf for precast components.

[0005] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] A folding shelf for precast components, including two placing plates, the two placing plates are arranged up and down, fixing rods are slidably inserted at the four corners of the top surface of the upper placing plate, and support sleeves are slidably inserted at the four corners of the top surface of the lower placing plate. A folding structure is arranged on the top surface of the placing plate. The folding structure includes a threaded sleeve rotatably arranged inside the support sleeves located in the upper right and lower left. A screw rod is threadedly connected inside the threaded sleeve, and the top end of the screw rod is fixed to the inner top surface of the fixing rod.

[0007] As a further solution of the present utility model, a driving motor is fixed at the bottom end of the threaded sleeve. Connecting rods are fixed between the two fixing rods on the right side and between the two fixing rods on the right side. Installation grooves are formed on the sides of the two connecting rods away from each other. A pulley is rotatably arranged inside the installation groove. Hoists are arranged below the two connecting rods. The towing ropes of the hoists are attached to the outer circumferential wall surface of the pulley. One end of the towing rope of the hoist penetrates through the top surfaces of the two placing plates. Two clamping blocks are fixed to the towing rope of the hoist. The top surfaces of the two clamping blocks are respectively attached to the bottom surfaces of the two placing plates.

[0008] As a further solution of the present utility model, sliding strips are formed on both sides of the fixing rod, sliding notches are formed on both sides of the support sleeve, and the sliding strips slide inside the sliding notches.

[0009] As a further solution of the present utility model, two bolts are rotatably arranged on both sides of the placing plate, and a clamping hole is formed on one side of the sliding strip.

[0010] As a further solution of the present utility model, two limiting rings are fixed to the outer circumferential wall surface of the pulley, and the towing rope of the hoist is located between the two limiting rings.

[0011] As a further solution of the present utility model, a bottom plate is arranged below the placing plate. The top surface of the bottom plate is fixed to the bottom end of the support sleeve. The driving motor is fixed inside the bottom plate. The two hoists are respectively fixed to both sides of the bottom plate.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] For this shelf, through the setting of the folding structure, when the staff starts the hoist to loosen the towing rope, then starts the driving motor to drive the threaded sleeve to rotate, so that the screw rod pushes the fixing rod to rise, and the fixing rod extends out of the support sleeve. Then start the hoist to retract the towing rope, so that the towing rope raises the two placing plates in sequence through the clamping blocks, thereby changing the shelf from the folded state to the unfolded state. When folding, the staff starts the hoist to loosen the towing rope, makes the two placing plates descend and fold together, and then starts the driving motor to reverse and drive the threaded sleeve to rotate, so that the screw rod drives the fixing rod to retract into the support sleeve, thereby reducing the height of the shelf and realizing the folding of the shelf. The operation is convenient and the structure is simple, enabling the staff to quickly unfold and fold the shelf when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of a folding shelf for precast components proposed by the present utility model;

[0015] Figure 2 is a schematic exploded view of a folding shelf for precast components proposed by the present utility model;

[0016] Figure 3 Schematic diagram of the splitting structure at the connecting rod of a folding shelf for precast components proposed by the present utility model;

[0017] Figure 4 A folding shelf for precast components proposed by the present utility model Figure 3 Enlarged structure diagram at position A in;

[0018] Figure 5 A folding shelf for precast components proposed by the present utility model Figure 3 Enlarged structure diagram at position B in.

[0019] In the figure: 1, placing plate; 2, fixed rod; 201, threaded sleeve; 202, screw rod; 203, connecting rod; 204, installation groove; 205, pulley; 206, winch; 207, clamping block; 3, support sleeve; 301, sliding strip; 302, sliding notch; 4, bolt; 401, clamping hole; 5, limiting ring; 6, bottom plate. Specific implementation manners

[0020] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0023] Refer to Figures 1-5, A foldable shelf for precast components, comprising two placement plates 1. The two placement plates 1 are arranged vertically. Fixed rods 2 are slidably inserted at the four corners of the top surface of the upper placement plate 1, and support sleeves 3 are slidably inserted at the four corners of the top surface of the lower placement plate 1. A folding structure is provided on the top surface of the placement plate 1. The folding structure includes threaded sleeves 201 rotatably arranged inside the support sleeves 3 located in the upper right and lower left positions. A screw rod 202 is threadedly connected inside the threaded sleeve 201, and the top end of the screw rod 202 is fixed to the inner top surface of the fixed rod 2.

[0024] In this embodiment, a driving motor is fixed to the bottom end of the threaded sleeve 201. Connecting rods 203 are fixed between the two fixed rods 2 on the right side and between the two fixed rods 2 on the right side. Installation grooves 204 are formed on the mutually remote sides of the two connecting rods 203. Pulleys 205 are rotatably arranged inside the installation grooves 204. Hoists 206 are arranged below the two connecting rods 203. The traction ropes of the hoists 206 are in contact with the outer circumferential wall surfaces of the pulleys 205. One end of the traction rope of the hoist 206 penetrates through the top surfaces of the two placement plates 1, and two clamping blocks 207 are fixed to the traction rope of the hoist 206. The top surfaces of the two clamping blocks 207 are respectively in contact with the bottom surfaces of the two placement plates 1. The hoist 206 is a prior art. Through the setting of the folding structure, the staff starts the hoist 206 to relax the traction rope, then starts the driving motor to drive the threaded sleeve 201 to rotate, so that the screw rod 202 pushes the fixed rod 2 to rise, and the fixed rod 2 extends out of the support sleeve 3. Then the staff starts the hoist 206 to contract the traction rope, so that the traction rope raises the two placement plates 1 in sequence through the clamping blocks 207, thereby changing the shelf from the folded state to the unfolded state. When folding, the staff starts the hoist 206 to relax the traction rope, makes the two placement plates 1 descend and fold together, then starts the driving motor to reverse and drive the threaded sleeve 201 to rotate, so that the screw rod 202 drives the fixed rod 2 to retract into the support sleeve 3, thereby reducing the height of the shelf and realizing the folding of the shelf. The operation is convenient and the structure is simple, enabling the staff to quickly unfold and fold the shelf when using it.

[0025] In this embodiment, sliding strips 301 are formed on both sides of the fixed rod 2, and sliding notches 302 are formed on both sides of the support sleeve 3. The sliding strips 301 slide inside the sliding notches 302. When the staff raises and lowers the fixed rod 2, the sliding setting of the sliding strips 301 and the sliding notches 302 can limit and guide the movement direction of the fixed rod 2, making its lifting and lowering more stable.

[0026] In this embodiment, two pins 4 are rotatably arranged on both sides of the placing plate 1. A clamping hole 401 is formed on one side of the slide bar 301. After the staff unfolds the shelf, the pin 4 can be inserted into the clamping hole 401 to fix the placing plate 1 on the slide bar 301, thereby improving the support strength of the placing plate 1 and reducing the traction pressure of the winch 206.

[0027] In this embodiment, two limit rings 5 are fixed on the outer wall surface of the pulley 205. The traction rope of the winch 206 is located between the two limit rings 5. By means of the limit rings 5, when the winch 206 winds the traction rope, it can prevent the traction rope from rolling around on the outer wall surface of the pulley 205, improving the stability of the shelf.

[0028] In this embodiment, a bottom plate 6 is arranged below the placing plate 1. The top surface of the bottom plate 6 is fixed to the bottom end of the support sleeve 3. The driving motor is fixed inside the bottom plate 6. The two winches 206 are respectively fixed to both sides of the bottom plate 6. By means of the bottom plate 6, the contact area between the bottom of the shelf and the ground can be increased, providing stable support for the shelf and at the same time increasing the placing space of the shelf.

[0029] Working principle: During use, the staff starts the winch 206 to loosen the traction rope, and then starts the driving motor to drive the threaded sleeve 201 to rotate, so that the screw rod 202 pushes the fixed rod 2 to rise, and the fixed rod 2 extends out of the support sleeve 3. Then the staff starts the winch 206 to contract the traction rope, so that the traction rope successively raises the two placing plates 1 through the clamping block 207, thereby changing the shelf from the folded state to the unfolded state. When folding, the staff starts the winch 206 to loosen the traction rope, so that the two placing plates 1 descend and fold together. Then the staff starts the driving motor to reverse and drive the threaded sleeve 201 to rotate, so that the screw rod 202 drives the fixed rod 2 to retract into the support sleeve 3, thereby reducing the height of the shelf and realizing the folding of the shelf. When the staff raises and lowers the fixed rod 2, the sliding arrangement of the slide bar 301 and the sliding notch 302 can limit and guide the movement direction of the fixed rod 2, making its lifting and lowering more stable. After the staff unfolds the shelf, the pin 4 can be inserted into the clamping hole 401 to fix the placing plate 1 on the slide bar 301, thereby improving the support strength of the placing plate 1 and reducing the traction pressure of the winch 206. By means of the limit rings 5, when the winch 206 winds the traction rope, it can prevent the traction rope from rolling around on the outer wall surface of the pulley 205, improving the stability of the shelf. By means of the bottom plate 6, the contact area between the bottom of the shelf and the ground can be increased, providing stable support for the shelf and at the same time increasing the placing space of the shelf.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A foldable shelf for prefabricated components, comprising two placement boards (1), characterized in that: The two placement plates (1) are arranged up and down, and a fixing rod (2) is slidably inserted at the four corners of the top surface of the upper placement plate (1), and a supporting sleeve (3) is slidably inserted at the four corners of the top surface of the lower placement plate (1). The top surface of the placement plate (1) is provided with a folding structure, and the folding structure includes a threaded sleeve (201) rotatably arranged inside the supporting sleeves (3) located at the upper right and lower left, and the internal threads of the threaded sleeve (201) are connected to a screw rod (202), and the top end of the screw rod (202) is fixed to the internal top surface of the fixing rod (2).

2. A foldable shelf for prefabricated components according to claim 1, characterized in that: A driving motor is fixed to the bottom end of the threaded sleeve (201), and a connecting rod (203) is fixed between the two fixing rods (2) on the right side and between the two fixing rods (2) on the right side. A mounting groove (204) is provided on the side of the two connecting rods (203) away from each other, and a pulley (205) is rotatably arranged inside the mounting groove (204). A winch (206) is arranged below the two connecting rods (203), and the traction rope of the winch (206) is in contact with the outer circular wall surface of the pulley (205). One end of the traction rope of the winch (206) passes through the top surfaces of the two placement plates (1). The traction rope of the winch (206) is fixed with two clamping blocks (207), and the top surfaces of the two clamping blocks (207) are in contact with the bottom surfaces of the two placement plates (1).

3. A foldable shelf for prefabricated components according to claim 2, characterized in that: Slide bars (301) are provided on both sides of the fixing rod (2), and sliding notches (302) are provided on both sides of the supporting sleeve (3), and the slide bars (301) slide inside the sliding notches (302).

4. A foldable shelf for prefabricated components according to claim 2, characterized in that: Two latches (4) are rotatably provided on both sides of the placement plate (1), and a clamping hole (401) is provided on one side of the slide bar (301).

5. A foldable shelf for prefabricated components according to claim 4, characterized in that: Two limiting rings (5) are fixed on the outer circular wall surface of the pulley (205), and the traction rope of the winch (206) is located between the two limiting rings (5).

6. A foldable shelf for prefabricated components according to claim 5, characterized in that: A bottom plate (6) is provided below the placement plate (1), the top surface of the bottom plate (6) is fixed to the bottom end of the support sleeve (3), the drive motor is fixed to the inside of the bottom plate (6), and two winches (206) are respectively fixed to the two sides of the bottom plate (6).

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