Curved-surface lifting white board

Abstract

The utility model discloses a curved-surface lifting whiteboard which comprises a curved-surface whiteboard body (1), a lifting frame (2) and a fixing frame (3). The lifting frame (2) is arranged on the fixed frame (3) in a sliding fit mode, and the curved-surface white board (1) is installed on the lifting frame (2). A coil spring assembly is arranged between the lifting frame (2) and the fixed frame (3), the coil spring assembly comprises a coil spring, and the coil spring comprises a coil spring body (6) and a coil spring ruler end (602); the coil spring body (6) is rotatably connected to the fixed frame (3); and the coil spring ruler end (602) is in linkage connection with the lifting frame (2). The curved-surface lifting whiteboard is reliable in mounting structure and good in lifting stability, so that the service life of the whiteboard is longer.

Description

Technical Field

[0001] The utility model relates to the technical field of office equipment, and more specifically to a curved lifting whiteboard. Background Art

[0002] Whiteboards are a common tool for teaching, meeting discussions, and personal and family note-taking. They are usually made of an erasable white surface that can be written on with a dry-erase pen. Whiteboards are used for a wide range of purposes, including displaying and explaining teaching content, recording key points of meeting discussions, and taking memos or messages at home. There are many types of whiteboards, and curved lift whiteboards are one of them. This type of whiteboard can be lifted and installed on the wall, which can solve the problem of squatting and wrist stress when writing to the bottom of the board. It is an ergonomic whiteboard.

[0003] There are many lifting structures for whiteboards, and those that use the constant force characteristics of the coil spring to balance the weight of the whiteboard to control the lifting and lowering and achieve the stop-and-go function are relatively rare in the market. For example, the utility model patent with patent announcement number CN 213322373 U discloses a whiteboard, in which at least one column and one side of the whiteboard body are provided with a self-positioning structure, and the self-positioning structure includes a coil spring, the head of the coil spring is connected to the column, and the coiled part of the coil spring is connected to the whiteboard body. The whiteboard uses the sliding rails on both sides to provide friction and the lifting track, and the coil spring provides an upward support force to balance the gravity of the whiteboard, so as to achieve the effect of labor-saving lifting and stopping. This type of prior art whiteboard has the following defects: the head of the coil spring is connected to the column, the coiled part of the coil spring is connected to the whiteboard body, and the coiled part moves up and down with the whiteboard; since the coiled part is the main part of the coil spring, this part is heavier, and the head of the coil spring is connected to the column to support the weight of the coiled part and the whiteboard, which makes the installation structure unreliable, affects the stability of the whiteboard lifting and lowering, and thus affects the service life of the whiteboard. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a curved lifting whiteboard, the installation structure of the curved lifting whiteboard is more reliable, and the lifting stability of the whiteboard is better, so that the service life of the whiteboard is longer.

[0005] The technical solution of the utility model is to provide a curved lifting whiteboard with the following structure, including a curved whiteboard, a lifting frame and a fixed frame; the lifting frame is slidably fitted on the fixed frame, and the curved whiteboard is installed on the lifting frame; a coil spring assembly is provided between the lifting frame and the fixed frame, the coil spring assembly includes a coil spring, and the coil spring includes a coil spring body and a coil spring ruler end; the coil spring body is rotatably connected to the fixed frame; the coil spring ruler end is linked to the lifting frame.

[0006] After adopting the above structure, the curved lifting whiteboard of the utility model has the following advantages compared with the prior art:

[0007] Since the coil spring body of the curved lifting whiteboard of the utility model is rotatably connected to the fixed frame, the ruler end of the coil spring is linked to the lifting frame, the coil spring body of the main part of the coil spring is installed on the fixed frame, and the ruler end of the coil spring is connected to the lifting frame. It moves up and down with the curved whiteboard. The installation structure is more reliable and the lifting stability is better, thereby extending the service life of the whiteboard.

[0008] As an improvement, the coil spring assembly further comprises a mounting frame, the mounting frame is fixedly connected to the fixing frame, a rotating shaft is arranged on the mounting frame, a rotating shaft hole is arranged in the middle of the coil spring body, the coil spring body is sleeved on the rotating shaft through the rotating shaft hole, and the coil spring body can rotate around the rotating shaft. With this structure, the coil spring body has a simple mounting structure and is easy to assemble.

[0009] As an improvement, a support plate is provided on the lower side of the rotating shaft of the mounting frame, the shape of the support plate matches the shape of the outer contour of the coil spring body, and the coil spring body is abutted against the support plate. With this structure, the coil spring body can be stably and reliably mounted on the mounting frame under the action of the rotating shaft and the support plate.

[0010] As an improvement, a slide rail is provided on the inner side of the fixed frame, a slider is fixedly connected to the side of the lifting frame, the slider is slidably fitted on the slide rail, and the lifting frame is slidably connected to the lifting frame through the slider; the coil spring ruler end of the coil spring is linked to the slider. After adopting this structure, the coil spring body is installed in the slide rail, and the ruler end of the tape measure is connected to the slider. The installation structure is more reliable, and the coil spring can also be stably extended and retracted, which is conducive to the stability of the lifting movement of the curved lifting whiteboard.

[0011] As an improvement, the coil spring ruler end is provided with a "T"-shaped connector, the upper end of the slider is provided with a "T"-shaped slot matching the "T"-shaped connector, and the "T"-shaped connector is snap-fitted into the "T"-shaped slot. With this structure, the matching structure between the ruler end of the tape measure and the slider is simple and easy to assemble.

[0012] As an improvement, a positioning block is provided on the side wall of the lifting frame, a positioning hole is provided in the middle of the sliding block, and the positioning block is embedded in the positioning hole. After adopting this structure, the structure of the positioning block and the positioning hole can position and install the sliding block, making the installation structure of the sliding block more accurate.

[0013] As an improvement, a stop block is provided at the end of the mounting frame close to the slider, and the stop block is used to resist the slider. After adopting this structure, the stop block limits the slider to avoid sliding too far and damaging the coil spring body.

[0014] As an improvement, the two sides of the limit block are provided with limit springs, the ends of which protrude from the end surface of the limit block close to the slider; the lower end of the limit spring is used to resist the upper end surface of the slider. With this structure, the limit spring has a buffering effect on the slider, preventing the slider from hitting the coil spring body.

[0015] As an improvement, the upper end surface of the slider is provided with two mutually parallel guide blocks, the limit block is provided with a protrusion matching the guide blocks, and the protrusion can be embedded between the two guide blocks. With this structure, the guide blocks and the protrusions cooperate with each other to prevent the slider from deviating and causing the tape measure to twist.

[0016] As an improvement, steps are respectively provided on both sides of the protrusion, and the guide blocks can be matched with the steps on both sides in a one-to-one correspondence. After adopting this structure, the steps have a limiting effect on the guide blocks.

[0017] As an improvement, a support frame is installed on the back of the curved whiteboard, an upper crossbeam is provided on the support frame, a suspension frame is provided on the upper crossbeam, and the suspension frame is hung on the upper frame of the lifting frame. After adopting this structure, the support frame is hung on the lifting frame through the suspension frame, which is convenient to install.

[0018] As an improvement, the support frame is provided with a lower cross beam, the lower cross beam is provided with a support plate, and the lifting frame is in contact with the support plate. After adopting this structure, the support plate is against the lower cross beam, and the suspension frame cooperates with the support plate to limit the upper and lower positions of the support frame, so that the support frame is installed more stably.

[0019] As an improvement, a locking assembly is further included, and a connecting plate is provided on the side frame of the lifting frame, and the connecting plate is locked and fixed to the side wall of the support frame by the locking assembly. After adopting this structure, the support frame is fixedly connected to the connecting plate by the locking assembly, so that the installation of the support frame is more stable and firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the curved lifting whiteboard of the utility model.

[0021] Figure 2 It is a schematic diagram of the exploded structure of the curved lifting whiteboard of the utility model.

[0022] Figure 3It is a schematic diagram of a partial exploded structure of the curved lifting whiteboard of the utility model.

[0023] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of part A.

[0024] Figure 5 It is a schematic diagram of the exploded structure of the coil spring assembly of the curved lifting whiteboard of the utility model.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the mounting frame of the curved lifting whiteboard of the present utility model.

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the slider of the curved lifting whiteboard of the present invention.

[0027] Figure 8 It is a three-dimensional structural schematic diagram of the support frame of the curved lifting whiteboard of the present invention.

[0028] Fig. 9 It is a partial three-dimensional structural schematic diagram of the curved lifting whiteboard of the utility model.

[0029] As shown in the accompanying drawings: 1. curved whiteboard; 2. lifting frame; 201. positioning block; 202. connecting plate; 3. fixing frame; 301. slide rail; 4. support frame; 401. tripod; 402. upper beam; 403. lower beam; 404. hanging frame; 405. hook; 406. abutment plate; 5. slider; 501. positioning hole; 502. guide block; 503. "T" shaped slot; 6. coil spring body; 601. shaft hole; 602. coil spring ruler end; 603. "T" shaped connector; 7. mounting frame; 701. shaft; 702. support plate; 703. limit block; 704. limit spring; 705. bump; 706. step; 8. wall; 9. locking assembly. Implementation

[0030] In order to better understand the present application, a more detailed description of various aspects of the present application will be made with reference to the accompanying drawings. It should be understood that these detailed descriptions are only descriptions of exemplary embodiments of the present application, and do not limit the scope of the present application in any way. Throughout the specification, the same figure numerals refer to the same elements.

[0031] In the drawings, the thickness, size and shape of objects have been slightly exaggerated for ease of explanation. The drawings are only examples and are not drawn strictly to scale.

[0032] It should also be understood that the terms “comprises,” “including,” “has,” “includes,” and “containing,” when used in this specification, indicate the presence of features, integers, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, and / or combinations thereof.

[0033] like Figures 1 to 9 As shown, the present application discloses a curved lifting whiteboard including a curved whiteboard 1, a lifting frame 2, a fixed frame 3 and a support frame 4. The fixed frame 3 is used for fixed installation on a wall, the lifting frame 2 is slidably fitted on the fixed frame 3, the support frame 4 is installed on the back of the curved whiteboard 1, and the support frame 4 is installed on the fixed frame 3.

[0034] The lifting frame 2 is installed on the inner side of the fixed frame 3. The inner sides of the frame bodies on the left and right sides of the fixed frame 3 are provided with slide rails 301. The side frames on the left and right sides of the lifting frame 2 are provided with sliders 5. The sliders 5 on both sides are slidably matched on the slide rails 301 on both sides in a one-to-one correspondence. The sliders 5 can slide back and forth along the length direction of the slide rails 301.

[0035] A coil spring assembly is provided between the lifting frame 2 and the fixed frame 3. The coil spring assembly includes a coil spring and a mounting frame 7. The coil spring includes a coil spring body 6 and a coil spring ruler end 602. The mounting frame 7 is installed on the inner side of the slide rail 301 of the frame body of the fixed frame 3. The upper end of the mounting frame 7 is fixedly connected to the frame body on the upper side of the fixed frame 3. An accommodating cavity is formed between the mounting frame 7 and the frame body of the fixed frame 3 with the slide rail 301. The coil spring body 6 is installed in the accommodating cavity. A rotating shaft 701 is provided on the mounting frame 7. A rotating shaft hole 601 is provided in the middle of the coil spring body 6. The coil spring body 6 is sleeved on the rotating shaft 701. A support plate 702 is provided on the lower side of the rotating shaft 701. The shape of the support plate 702 matches the shape of the side wall of the coil spring body 6. The support plate 702 is supported on the lower side of the coil spring body 6. Through the above structure, the coil spring body 6 is stably installed on the inner side of the slide rail 301.

[0036] The coil spring body 6 is fixedly connected to the inner side of the upper end of the slide rail 301; the coil spring ruler end 602 is fixedly connected to the side of the upper end of the slider 5. A positioning block 201 is provided on the side wall of the lifting frame 2, and a positioning hole 501 is provided in the middle of the slider 5, and the positioning block 201 is embedded in the positioning hole 501. The coil spring ruler end 602 is provided with a "T"-shaped connector 603, and the side of the upper end of the slider 5 is provided with a "T"-shaped slot 503 matching the "T"-shaped connector 603, and the "T"-shaped connector 603 is clamped in the "T"-shaped slot 503.

[0037] The end of the mounting frame 7 close to the slider 5 is provided with a limit block 703, and the limit block 703 is used to resist the slider 5. Limit springs 704 are respectively provided on both sides of the limit block 703, and the ends of the limit springs 704 protrude from the end surface of the limit block 703 close to the slider 5; the lower end of the limit spring 704 is used to resist the upper end surface of the slider 5. Two mutually parallel guide blocks 502 are provided on the upper end surface of the slider 5, and a protrusion 705 matching the guide blocks 502 is provided on the limit block 703, and the protrusion 705 can be embedded between the two guide blocks 502. Steps 706 are respectively provided on both sides of the protrusion 705, and the guide blocks 502 can be matched with the steps 706 on both sides in a one-to-one correspondence.

[0038] The support frame 4 includes a plurality of tripods 401, an upper crossbeam 402 and a lower crossbeam 403. In this specific embodiment, three tripods 401 are provided. The tripods 401 are arranged in sequence along the length direction of the curved whiteboard 1. The upper crossbeam 402 is transversely arranged and fixedly connected to the middle of the tripod 401. The lower crossbeam 403 is located at the lower side of the upper crossbeam 402. The lower crossbeam 403 is transversely arranged and fixedly connected to the lower part of the tripod 401. A hanging frame 404 is provided on the upper crossbeam 402. A hook 405 is provided at the end of the hanging frame 404. In this specific embodiment, two hanging frames 404 are provided, and the two hanging frames 404 are arranged parallel to each other. The hanging frame 404 is hung on the upper frame of the lifting frame 2. A supporting plate 406 is provided on the lower crossbeam 403, and the supporting plate 406 is supported on the lower side of the lower crossbeam 403. A connecting plate 202 is provided on the side frame of the lifting frame 2 , and the connecting plate 202 is locked and fixed to the side wall of the supporting frame 4 by a locking assembly 9 .

[0039] When the curved lifting whiteboard disclosed in the present application is used, in the initial state, the coil spring assembly provides an upward elastic force to the curved whiteboard 1 and is consistent with the weight of the curved whiteboard 1, so that the curved whiteboard 1 is balanced and still. When an external force pushes the curved whiteboard 1 to descend or ascend, the coil spring ruler end 602 expands or contracts until the external force disappears and the curved whiteboard 1 is still.

[0040] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A curved lifting whiteboard, comprising a curved whiteboard (1), a lifting frame (2) and a fixed frame (3); the lifting frame (2) is slidably fitted on the fixed frame (3), and the curved whiteboard (1) is mounted on the lifting frame (2); the characteristics are: A coil spring assembly is provided between the lifting frame (2) and the fixed frame (3), wherein the coil spring assembly comprises a coil spring, wherein the coil spring comprises a coil spring body (6) and a coil spring ruler end (602); the coil spring body (6) is rotatably connected to the fixed frame (3); and the coil spring ruler end (602) is linked to the lifting frame (2).

2. The curved lifting whiteboard according to claim 1, characterized in that: The coil spring assembly further comprises a mounting frame (7), the mounting frame (7) being fixedly connected to the fixing frame (3), the mounting frame (7) being provided with a rotating shaft (701), a rotating shaft hole (601) being provided in the middle of the coil spring body (6), the coil spring body (6) being sleeved on the rotating shaft (701) through the rotating shaft hole (601), and the coil spring body (6) being rotatable around the rotating shaft (701).

3. The curved lifting whiteboard according to claim 2, characterized in that: A support plate (702) is provided on the lower side of the rotating shaft (701) of the mounting frame (7); the shape of the support plate (702) matches the shape of the outer contour of the coil spring body (6); the coil spring body (6) is abutted against the support plate (702).

4. The curved lifting whiteboard according to claim 3, characterized in that: A slide rail (301) is provided on the inner side of the fixed frame (3); a slider (5) is fixedly connected to the side of the lifting frame (2); the slider (5) is slidably engaged on the slide rail (301); the lifting frame (2) is slidably connected to the lifting frame (2) via the slider (5); and the coil spring ruler end (602) of the coil spring is linked to the slider (5).

5. The curved lifting whiteboard according to claim 4, characterized in that: The coil spring ruler end (602) is provided with a "T"-shaped connector (603), and the side portion of the upper end of the slider (5) is provided with a "T"-shaped slot (503) matching the "T"-shaped connector (603), and the "T"-shaped connector (603) is snap-fitted into the "T"-shaped slot (503).

6. The curved lifting whiteboard according to claim 4, characterized in that: A positioning block (201) is provided on the side wall of the lifting frame (2), a positioning hole (501) is provided in the middle of the sliding block (5), and the positioning block (201) is embedded in the positioning hole (501).

7. The curved lifting whiteboard according to claim 4, characterized in that: The end of the mounting frame (7) close to the sliding block (5) is provided with a limit block (703), and the limit block (703) is used to resist the sliding block (5).

8. The curved lifting whiteboard according to claim 7, characterized in that: Limiting spring pieces (704) are respectively provided on both sides of the limiting block (703), and the ends of the limiting spring pieces (704) protrude from the end surface of the limiting block (703) close to the slider (5); the lower end of the limiting spring piece (704) is used to resist the upper end surface of the slider (5).

9. The curved lifting whiteboard according to claim 7, characterized in that: The upper end surface of the sliding block (5) is provided with two mutually parallel guide blocks (502), the limiting block (703) is provided with a protrusion (705) matching the guide blocks (502), and the protrusion (705) can be embedded between the two guide blocks (502).

10. The curved lifting whiteboard according to claim 9, characterized in that: Steps (706) are respectively provided on both sides of the protrusion (705), and the guide blocks (502) can be matched with the steps (706) on both sides in a one-to-one correspondence.

11. The curved lifting whiteboard according to any one of claims 1 to 10, characterized in that: A support frame (4) is installed on the back of the curved whiteboard (1), an upper crossbeam (402) is provided on the support frame (4), a hanging frame (404) is provided on the upper crossbeam (402), and the hanging frame (404) is hung on the upper frame of the lifting frame (2).

12. The curved lifting whiteboard according to claim 11, characterized in that: The support frame (4) is provided with a lower crossbeam (403), the lower crossbeam (403) is provided with a supporting plate (406), and the lifting frame (2) is in contact with the supporting plate (406).

13. The curved lifting whiteboard according to claim 11, characterized in that: It also comprises a locking assembly (9), a connecting plate (202) is provided on the side frame of the lifting frame (2), and the connecting plate (202) and the side wall of the supporting frame (4) are locked and fixed by the locking assembly (9).

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