Ground concealed lifting device

Abstract

This utility model proposes a ground-concealed lifting device, belonging to the technical field of lifting platforms. It includes a lifting base; a support base, which is height-adjustable and installed inside the lifting base; multiple lifting rods that slide in conjunction with the support base, with a spring between the lower end of the lifting rod and the support base; and multiple storage plates, fixedly connected to the upper end of the lifting rods, with adjacent storage plates nested together. The storage plates are movable up and down relative to the lifting base. This utility model, by setting up multi-stage movable storage plates and a spring reset mechanism, achieves adaptive limiting for storage tanks of different sizes, effectively improving the applicability and safety of use. The storage plates are equipped with a liquid collection trough and a liquid outlet channel, which, together with the internal cavity structure of the support base, enables centralized collection of waste liquid, reducing material waste and improving the cleanliness of the working environment. The entire device is hydraulically driven, providing smooth lifting, and can be concealed on the ground. It has a compact structure, occupies little space, and is flexible and convenient to operate.

Description

Technical Field

[0001] This utility model belongs to the field of lifting platform technology, and in particular relates to a ground-concealed lifting device. Background Technology

[0002] A lifting platform is a mechanical device used to move objects or people vertically. It is widely used in various applications such as industrial production, construction, logistics and warehousing, equipment maintenance, and high-altitude operations. The device typically consists of a support platform, a lifting mechanism, and a drive control system, enabling smooth and reliable vertical lifting operations.

[0003] In the chemical production field, liquid products such as paints and coatings are often filled into storage tanks equipped with casters to facilitate material transfer and temporary storage. These tanks have a wheel system at the bottom and a discharge port on the side wall. However, when filling and packaging liquid materials, the height difference between the tank's discharge port and the ground prevents the packaging containers (barrels or bags) from being placed directly on the ground for filling, thus limiting operational efficiency.

[0004] To address these issues, most companies have installed lifting platforms in their workshops. When packaging is required, the storage tank is moved onto the lifting platform's support surface. The lifting mechanism is then activated, raising the entire tank to a suitable height, creating the necessary height difference between the tank's outlet and the packaging container to be filled. This measure effectively facilitates the smooth flow of materials and significantly improves the convenience and overall efficiency of packaging operations.

[0005] However, existing lifting platforms have shown several significant shortcomings in practical applications:

[0006] First, the limiting function of liquid storage tanks is lacking or insufficient: there is a general lack of effective fixing and limiting measures for liquid storage tanks, posing a safety hazard such as overturning due to unstable tank placement. Second, the size adaptability is poor: some lifting platforms equipped with limiting devices have a single and fixed limiting structure size. This limitation makes the device unable to effectively limit liquid storage tanks of different sizes, and may even render the platform completely unusable for specific-sized liquid storage tanks. Third, there is a lack of waste liquid collection design: the lifting platforms currently commonly installed in workshops do not integrate waste liquid collection functions. During packaging operations, materials are easily spilled onto the platform surface and then drip onto the workshop floor. This situation not only causes material loss and resource waste, but also creates a source of pollution, polluting the working environment. Utility Model Content

[0007] This utility model proposes a ground-concealed lifting device to solve the problems mentioned in the background art, such as the inability of general lifting platforms to effectively limit the liquid storage tank when placing some items, the inability to adapt to different sizes of liquid storage tanks, and the inability to collect spilled materials. This utility model proposes the following technical solution.

[0008] The technical solution adopted in this utility model is implemented as follows:

[0009] A ground-mounted concealed lifting device includes:

[0010] Adjustable seat;

[0011] The support base is installed inside the lifting base and can be raised and lowered.

[0012] There are multiple lifting rods, which slide in conjunction with the support base, and a spring is provided between the lower end of the lifting rod and the support base;

[0013] There are multiple shelves, which are fixedly connected to the upper end of the lifting rod. Two adjacent shelves are nested together. The shelves can move up and down relative to the lifting base. When the shelf moves up to the upper limit position, the upper surface of the shelf is flush with the upper surface of the lifting base.

[0014] By adopting the above technical solution, the lifting rod can support the placement plate, making the placement plate flush with the upper surface of the lifting seat, so that the liquid storage tank can move to the surface of the lifting seat. Afterwards, when the force exerted by the lifting rod on the placement plate disappears, the liquid storage tank can move the designated placement plate down under the action of gravity, thereby achieving effective limiting of the liquid storage tank. Moreover, since there are multiple placement plates, which are nested in sequence, it is convenient to limit the liquid storage tanks of different sizes, and has the advantage of wide applicability.

[0015] Optionally, it also includes a support block installed inside the lifting seat. When the support seat is lowered to its limit position, the lower surface of the support seat contacts the support block, and the upper surface of the shelf is kept flush with the workshop floor by the spring force.

[0016] The above technical solution is mainly used to limit the position of the support base, thereby achieving the effect of safety protection.

[0017] Optionally, there are four support blocks, which are installed at the four corners of the lifting seat.

[0018] By adopting the above technical solution, the support effect of the support base is stable and reliable.

[0019] Optionally, the surface of the shelf is provided with a liquid collection tank, and a liquid outlet connected to the liquid collection tank is provided at the base of the shelf.

[0020] By adopting the above technical solution, spilled liquid can be collected in a collection tank and discharged outwards through a liquid outlet, thus achieving the effect of waste liquid collection.

[0021] Optionally, the surface of the support base is provided with a plurality of cavities, which are connected to the liquid outlet on the placement plate for liquid to flow into the cavity through the liquid outlet.

[0022] By adopting the above technical solution, the support base can serve as both a support for the shelf and a waste liquid collection device. After collecting a specified amount of liquid, the waste liquid can be discharged in a unified manner.

[0023] Optionally, a hydraulic cylinder is installed inside the lifting seat, and the telescopic rod of the hydraulic cylinder is connected to the support seat, which is configured to drive the lifting seat to move up and down.

[0024] By adopting the above technical solution, the support base is raised and lowered using hydraulic means, which has the advantages of reliable operation and stable support.

[0025] Optionally, a connecting block is connected below the support base, and the connecting block is connected to the telescopic rod of the hydraulic cylinder.

[0026] By adopting the above technical solution, the connecting block can be replaced when the parts are damaged, thus facilitating maintenance.

[0027] Optionally, the lifting seat is raised and lowered by hydraulic drive, and when it moves to the limit position, the upper surface of the lifting seat is flush with the horizontal ground.

[0028] By adopting the above technical solution, when not in use, the lifting platform is located in the pit of the workshop, and its surface is flush with the ground, which can hide the lifting device. When in use, it can be lifted, which has the advantage of convenient operation.

[0029] By adopting the above technical solution, the beneficial effects of this utility model are as follows:

[0030] This utility model achieves adaptive limiting for liquid storage tanks of different sizes by setting up multi-level movable storage plates and spring reset mechanisms, effectively improving the scope of application and safety of use; the storage plates are equipped with liquid collection tanks and liquid outlet channels, which, together with the internal cavity structure of the support base, realize centralized collection of waste liquid, reduce material waste and improve the cleanliness of the working environment; the whole device is hydraulically driven, the lifting is smooth, and it can be hidden on the ground, with a compact structure, small space occupation, and flexible and convenient operation. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, they can also refer to these drawings or other drawings without creative effort.

[0032] Figure 1 This is a perspective view of the present utility model;

[0033] Figure 2 This is a top view of the present invention;

[0034] Figure 3 This is a cross-sectional view of the present invention;

[0035] Figure 4 This is a partial enlarged view of the present invention.

[0036] in:

[0037] 1. Lifting seat; 2. Support seat; 3. Hydraulic cylinder; 4. Lifting rod; 5. Storage plate; 6. Support block; 7. Connecting block; 8. Cavity; 9. Liquid outlet; 10. Liquid collection tank; 11. Spring. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the experimental cases in the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0039] refer to Figures 1 to 4 A ground-mounted concealed lifting device, comprising:

[0040] The lifting seat 1 is a frame structure. It is mainly lifted by hydraulic drive. When it is lowered to the limit position, the upper surface of the lifting seat 1 is flush with the horizontal ground. Specifically, the lifting seat 1 is driven by a scissor-type hydraulic lifting method to lift the liquid storage tank after it is moved above the lifting seat 1. The structure and principle of the scissor-type hydraulic lifting are conventional settings in the existing technology and will not be described in detail here.

[0041] The support base 2 is installed inside the lifting base 1 in a height-adjustable manner. Specifically, the lifting base 1 is equipped with a hydraulic cylinder 3. The telescopic rod of the hydraulic cylinder 3 is connected to the support base 2 and is configured to drive the lifting base 1 to move up and down. That is, the hydraulic cylinder 3 drives the support base 2 to move up and down. A connecting block 7 is connected to the bottom of the support base 2. The connecting block 7 is connected to the telescopic rod of the hydraulic cylinder 3, which facilitates the replacement and maintenance of the connecting block 7.

[0042] There are multiple lifting rods 4, which slide in conjunction with the support base 2. A spring 11 is provided between the lower end of the lifting rod 4 and the support base 2. Specifically, multiple blind holes are opened on the upper surface of the support base 2. The lifting rod 4 is inserted into the blind holes, and a spring 11 is provided between the lower end of the lifting rod 4 and the root of the blind hole. In the natural state, the spring 11 can apply an upward elastic force to the lifting rod 4, so that the shelf 5 is in the upper limit position in the natural state, making the surface of the shelf 5 flush with the surface of the lifting base 1, which has an aesthetic effect.

[0043] There are multiple shelf panels 5, which are fixedly connected to the upper end of the lifting rod 4. Two adjacent shelf panels 5 are nested together. The shelf panels 5 can move up and down relative to the lifting base 1. When the shelf panel 5 moves to the upper limit position, the upper surface of the shelf panel 5 is flush with the upper surface of the lifting base 1.

[0044] Specifically, it also includes a support block 6 installed inside the lifting seat 1. When the support seat 2 is lowered to the extreme position, the lower surface of the support seat 2 contacts the support block 6, and the upper surface of the shelf 5 is kept flush with the workshop floor under the elastic force of the spring 11. There are four support blocks 6, which are installed at the four corners of the lifting seat 1.

[0045] Specifically, the surface of the shelf 5 is provided with a liquid collection tank 10, and a liquid outlet 9 connected to the liquid collection tank 10 is provided at the root of the shelf 5. The shelf 5 is generally in the form of a ring structure, so the liquid collection tank 10 is ring-shaped. The liquid outlet 9 is set at a designated position to collect and discharge the liquid in the liquid collection tank 10. The surface of the support base 2 is provided with a number of cavities 8. The cavities 8 are connected to the liquid outlet 9 on the shelf 5 so that the liquid can flow into the cavity 8 through the liquid outlet 9. All the cavities 8 can be connected in sequence. A negative pressure pipe is installed on the side of the support base 2. When a specified amount of liquid is collected inside the cavity 8, the liquid can be discharged by negative pressure extraction.

[0046] When this ground-concealed lifting device is in use, in its natural state, the lifting seat 1 is at its lower limit position, and the upper surface of the lifting seat 1 is flush with the horizontal ground. At this time, under the action of the elastic force of the spring 11, the lifting rod 4 drives the storage plate 5 to the upper limit position, so that the storage plate 5 is flush with the surface of the lifting seat 1.

[0047] During packaging, hydraulic cylinder 3 is first activated, causing support base 2 to move upward. Support base 2 compresses spring 11, creating an upward force on the support rod and placement plate 5. Therefore, during the movement of the storage tank to lifting seat 1, placement plate 5 will not descend. Once the storage tank reaches the designated position, hydraulic cylinder 3 stops. At this point, the storage tank's own weight presses down on the designated placement plate 5, compressing spring 11 and causing placement plate 5 to descend. This allows the storage tank's moving wheels to be positioned on the placement plate 5, thus achieving a limiting effect. Subsequently, lifting seat 1 is raised to the designated position, and packaging can then commence.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ground-concealed lifting device, characterized in that, include: Lifting seat (1); Support base (2), which is installed inside the lifting base (1) in a height-adjustable manner; There are multiple lifting rods (4) that slide in conjunction with the support base (2). A spring (11) is provided between the lower end of the lifting rod (4) and the support base (2). There are multiple storage boards (5), which are fixedly connected to the upper end of the lifting rod (4). Two adjacent storage boards (5) are nested together. The storage boards (5) can move up and down relative to the lifting seat (1). When the storage board (5) moves up to the upper limit position, the upper surface of the storage board (5) is flush with the upper surface of the lifting seat (1).

2. The ground-mounted concealed lifting device according to claim 1, characterized in that: It also includes a support block (6) installed in the lifting seat (1). When the support seat (2) is lowered to the limit position, the lower surface of the support seat (2) contacts the support block (6), and the upper surface of the shelf (5) is kept flush with the workshop floor under the elastic force of the spring (11).

3. The ground-concealed lifting device according to claim 2, characterized in that: There are four support blocks (6), and the four support blocks (6) are respectively installed at the four corners of the lifting seat (1).

4. The ground-concealed lifting device according to claim 1, characterized in that: The surface of the shelf (5) is provided with a liquid collection tank (10), and a liquid outlet (9) connected to the liquid collection tank (10) is provided at the root of the shelf (5).

5. A ground-mounted concealed lifting device according to claim 4, characterized in that: The support base (2) has several cavities (8) on its surface. The cavities (8) are connected to the liquid outlet (9) on the placement plate (5) for liquid to flow into the cavity (8) through the liquid outlet (9).

6. The ground-concealed lifting device according to claim 1, characterized in that: The lifting seat (1) is equipped with a hydraulic cylinder (3), and the telescopic rod of the hydraulic cylinder (3) is connected to the support seat (2) and is configured to drive the lifting seat (1) to move up and down.

7. A ground-concealed lifting device according to claim 6, characterized in that: The support base (2) is connected to a connecting block (7) below, and the connecting block (7) is connected to the telescopic rod of the hydraulic cylinder (3).

8. A ground-mounted concealed lifting device according to claim 1, characterized in that: The lifting seat (1) is lifted by hydraulic drive. When it moves to the limit position, the upper surface of the lifting seat (1) is flush with the horizontal ground.

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