Collapsible display support

Abstract

This utility model discloses a retractable display support frame, including a cylindrical body, a cylindrical cover, and a sliding rod. Both the upper and lower ends of the cylindrical body are open. The cylindrical cover is located at the upper end of the cylindrical body and has a first through hole extending vertically. An elastic element is connected to the lower end of the sliding rod. The outer diameter of the elastic element is larger than the diameter of the first through hole, and the diameter of the first through hole is larger than the diameter of the sliding rod. The lower end of the sliding rod is inserted into the cylindrical body, and the elastic element is located inside the cylindrical body and is interference-fitted with the cylindrical body. The sliding rod can move vertically relative to the cylindrical body. When the height of the sliding rod needs to be adjusted, moving the sliding rod vertically overcomes the friction between the elastic element and the cylindrical body, allowing the sliding rod to move vertically relative to the cylindrical body. When the sliding rod is no longer moved, due to the interference fit between the elastic element and the cylindrical body, the sliding rod is fixed relative to the cylindrical body, achieving self-locking. This retractable display support frame has a simple structure, low manufacturing cost, and is convenient to operate when adjusting the height.

Description

Technical Field

[0001] This utility model relates to the field of display rack technology, and in particular to a retractable display support rack. Background Technology

[0002] Support frames are commonly used in many industries to display specific items. For example, a support frame is needed to support a menu on a dining table, and a support frame is needed to support exhibits at a trade show. When the height of such a support needs to be adjusted, it usually requires complicated operations to unlock and fix it. The internal structure is complex and the operation is cumbersome. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a retractable display support frame.

[0004] This utility model embodiment provides a retractable display support frame, the retractable display support frame comprising:

[0005] A cylindrical body, with openings at both the top and bottom ends;

[0006] A cylinder cover is provided at the upper end of the cylinder body. The cylinder cover is detachably connected to the cylinder body. The cylinder cover has a first through hole that extends in the vertical direction.

[0007] A sliding rod is provided, with an elastic element connected to its lower end. The outer diameter of the elastic element is larger than the diameter of the first through hole, and the diameter of the first through hole is larger than the diameter of the sliding rod. The lower end of the sliding rod is inserted into the cylinder. The elastic element is located inside the cylinder and is interference-fitted with the cylinder. The sliding rod can move relative to the cylinder in the vertical direction.

[0008] According to some embodiments of the present invention, the cylinder cover includes a first annular portion and a second annular portion. The first annular portion is located above the second annular portion. The first annular portion and the second annular portion are coaxially arranged. The upper end of the second annular portion is fixedly connected to the lower end of the first annular portion. The outer diameter of the first annular portion is larger than the outer diameter of the second annular portion. The second annular portion is inserted into the cylinder body. The lower end face of the first annular portion is attached to the upper end face of the cylinder body.

[0009] According to some embodiments of the present invention, the upper end face of the first annular portion is inclined downward in a direction away from the axis of the first annular portion.

[0010] According to some embodiments of the present invention, the lower end face of the second annular portion is provided with a first notch, the first notch extends upward, and the first notch penetrates radially through the outer peripheral wall and the inner peripheral wall of the second annular portion.

[0011] According to some embodiments of the present invention, the inner peripheral wall of the cylinder is provided with a groove, and the outer peripheral wall of the second annular portion is provided with a barb portion, which is inserted into the groove.

[0012] According to some embodiments of the present invention, the cylinder cover is provided with a second through hole, the second through hole is located above the first through hole, the second through hole is coaxially arranged with the first through hole, the lower end of the second through hole communicates with the upper end of the first through hole, and the second through hole is interference-fitted with the slide rod.

[0013] According to some embodiments of this utility model, the elastic element is cylindrical, and the elastic element is provided with a third through hole and a fourth through hole. The third through hole and the fourth through hole are coaxially arranged with the axis direction being vertical. The lower end of the third through hole is connected to the upper end of the fourth through hole. The diameter of the third through hole is smaller than that of the fourth through hole. The lower end face of the slide rod is provided with a support column. The lower end of the support column is connected to an elastic clip. The support column passes through the third through hole. The outer diameter of the elastic clip is larger than that of the third through hole. The elastic clip is located inside the fourth through hole.

[0014] According to some embodiments of the present invention, the elastic element is cylindrical, the inner diameter of the elastic element is smaller than the outer diameter of the slide rod, the elastic element is sleeved on the slide rod, and the slide rod and the elastic element are interference-fitted.

[0015] According to some embodiments of the present invention, the upper end face of the elastic member is provided with a second notch, the second notch extends downward and penetrates the outer peripheral wall and inner peripheral wall of the elastic member radially; the lower end face of the elastic member is provided with a third notch, the third notch extends upward and penetrates the outer peripheral wall and inner peripheral wall of the elastic member radially.

[0016] According to some embodiments of this utility model, the upper end of the slide rod is provided with an external thread, and an article is connected to the upper end of the slide rod through the external thread; the lower end of the cylinder is provided with an internal thread, and a base is connected to the lower end of the cylinder through the internal thread.

[0017] The retractable display support frame according to the embodiments of this utility model has at least the following technical effects:

[0018] 1. The slide rod is inserted into the cylinder from bottom to top, and the upper end of the slide rod is disengaged from the cylinder and the cylinder cover through the first through hole, so that the upper end of the slide rod is above the cylinder cover. The upper end of the slide rod can connect to the item. The elastic element is located in the cylinder, and the outer peripheral wall of the elastic element is tightly fitted with the inner peripheral wall of the cylinder to achieve an interference fit.

[0019] 2. When it is necessary to adjust the height of the slide rod, press or pull the slide rod in the up and down direction to overcome the friction between the elastic element and the cylinder, so that the slide rod can move in the up and down direction relative to the cylinder. When the slide rod is no longer pressed or pulled, due to the interference fit between the elastic element and the cylinder, the slide rod is fixed relative to the cylinder and achieves self-locking.

[0020] 3. This retractable display support frame has a simple structure, low manufacturing cost, and is easy to operate when adjusting the height.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a structural schematic diagram of a retractable display support frame according to some embodiments of the present invention;

[0024] Figure 2 This is an exploded view of a retractable display support frame according to some embodiments of this utility model;

[0025] Figure 3 This is a cross-sectional view of a retractable display support frame according to some embodiments of the present invention;

[0026] Figure 4 yes Figure 3 An enlarged view of point A;

[0027] Figure 5 yes Figure 3 An enlarged view of point B;

[0028] Figure 6 This is a partial structural schematic diagram of the slide rod according to some embodiments of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the cylinder cover according to some embodiments of this utility model;

[0030] Figure 8 This is a cross-sectional view of the cap of some embodiments of this utility model;

[0031] Figure 9 This is a schematic diagram of the structure of the elastic element in some embodiments of this utility model;

[0032] Figure 10 This is a cross-sectional view of the elastic element in some embodiments of this utility model;

[0033] Figure 11This is a schematic diagram of the structure of another elastic element according to some embodiments of the present invention.

[0034] Icon labels:

[0035] Cylinder body 100; Groove 110;

[0036] Cylinder cap 200; first through hole 210; second through hole 220; first annular portion 230; second annular portion 240; first notch 241; barb portion 242;

[0037] Slide bar 300; Support column 310; Elastic retaining element 320;

[0038] Elastic element 400; third through hole 410; fourth through hole 420; second notch 430; third notch 440. Detailed Implementation

[0039] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0040] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0042] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0043] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0044] According to some embodiments of this utility model, refer to Figures 1 to 11The retractable display support frame includes a cylindrical body 100, a cylindrical cover 200, and a sliding rod 300. The cylindrical body 100, cylindrical cover 200, and sliding rod 300 are coaxially arranged with the axis pointing vertically. Both the upper and lower ends of the cylindrical body 100 are open. The cylindrical cover 200 is elastic, made of plastic, and located at the upper end of the cylindrical body 100. The cylindrical cover 200 is detachably connected to the cylindrical body 100, and has a first through hole 210 extending vertically. The lower end of the slide rod 300 is connected to an elastic element 400. The outer diameter of the elastic element 400 is larger than the diameter of the first through hole 210. The diameter of the first through hole 210 is larger than the diameter of the slide rod 300. The lower end of the slide rod 300 is inserted into the cylinder 100. The elastic element 400 is located inside the cylinder 100 and is interference-fitted with the cylinder 100. The slide rod 300 can move relative to the cylinder 100 in the vertical direction.

[0045] The slide rod 300 is inserted into the cylinder 100 from bottom to top, and the upper end of the slide rod 300 is disengaged from the cylinder 100 and the cylinder cover 200 through the first through hole 210. The upper end of the slide rod 300 is located above the cylinder cover 200, and the upper end of the slide rod 300 can connect to items, such as menus and display boards. The elastic element 400 is located inside the cylinder 100, and the outer peripheral wall of the elastic element 400 is tightly fitted with the inner peripheral wall of the cylinder 100 to achieve an interference fit.

[0046] When the height of the slide bar 300 needs to be adjusted, press or pull the slide bar 300 in the up and down direction to overcome the friction between the elastic element 400 and the cylinder 100, so that the slide bar 300 can move in the up and down direction relative to the cylinder 100. When the slide bar 300 is no longer pressed or pulled, due to the interference fit between the elastic element 400 and the cylinder 100, the slide bar 300 is fixed relative to the cylinder 100 and achieves self-locking.

[0047] This retractable display support frame has a simple structure, low manufacturing cost, and is easy to operate when adjusting the height.

[0048] According to some embodiments of this utility model, refer to Figure 4 , Figure 7 and Figure 8The cap 200 includes a first annular portion 230 and a second annular portion 240. The first annular portion 230 is located above the second annular portion 240, and the first and second annular portions 230 are coaxially arranged. The upper end of the second annular portion 240 is fixedly connected to the lower end of the first annular portion 230. The outer diameter of the first annular portion 230 is larger than the outer diameter of the second annular portion 240. The second annular portion 240 is inserted into the cylinder body 100, and the slide rod 300 passes through the first and second annular portions 230 and 240. The lower end face of the first annular portion 230 is in contact with the upper end face of the cylinder body 100, and the outer peripheral wall of the second annular portion 240 is in contact with the inner peripheral wall of the cylinder body 100, thereby ensuring the sealing of the connection between the cap 200 and the cylinder body 100.

[0049] Preferred, refer to Figure 4 , Figure 7 and Figure 8 The upper end face of the first annular portion 230 is inclined downward in a direction away from the axis of the first annular portion 230, so as to guide external liquids, dust and other impurities to flow along the inclined surface and prevent them from falling into the space between the slide bar 300 and the first annular portion 230.

[0050] Preferred, refer to Figure 4 , Figure 7 and Figure 8 The lower end face of the second annular portion 240 is provided with a first notch 241, which extends upward and radially penetrates the outer and inner peripheral walls of the second annular portion 240. When the cap 200 needs to be installed on the cylinder body 100, the second annular portion 240 is pressed forcefully, causing it to contract in the axial direction. The presence of the first notch 241 facilitates the pressing of the second annular portion 240, making it easy to insert the second annular portion 240 into the cylinder body 100. After releasing the second annular portion 240, it achieves an interference fit with the cylinder body 100, with the outer peripheral wall of the second annular portion 240 fitting against the inner peripheral wall of the cylinder body 100. The first notch 241 facilitates the assembly between the cylinder body 100 and the cap 200.

[0051] According to some embodiments of this utility model, refer to Figure 4 The inner peripheral wall of the cylinder 100 is provided with a groove 110, and the outer peripheral wall of the second annular portion 240 is provided with a barb portion 242, which is inserted into the groove 110. When the second annular portion 240 is inserted into the cylinder 100, the barb portion 242 is inserted into the groove 110, and the groove wall of the groove 110 can restrict the barb portion 242 from moving in the vertical direction, thereby preventing the second annular portion 240 from detaching from the cylinder 100.

[0052] According to some embodiments of this utility model, refer to Figure 4 and Figure 8The cylinder cover 200 is provided with a second through hole 220, which is located above the first through hole 210. The second through hole 220 and the first through hole 210 are coaxially arranged. The lower end of the second through hole 220 is connected to the upper end of the first through hole 210. The second through hole 220 is interference-fitted with the slide rod 300. The outer peripheral wall of the slide rod 300 is tightly fitted with the hole wall of the second through hole 220 to prevent external impurities from entering the cylinder cover 200 through the gap between the slide rod 300 and the second through hole 220.

[0053] According to some embodiments of this utility model, refer to Figure 5 , Figure 6 , Figure 9 and Figure 10 The elastic element 400 is cylindrical and has a third through hole 410 and a fourth through hole 420. The third through hole 410 and the fourth through hole 420 are coaxially arranged with the axis direction being vertical. The lower end of the third through hole 410 is connected to the upper end of the fourth through hole 420. The diameter of the third through hole 410 is smaller than that of the fourth through hole 420. The lower end face of the slide rod 300 is provided with a support column 310. The lower end of the support column 310 is connected to an elastic clamp 320. The support column 310 passes through the third through hole 410. The outer diameter of the elastic clamp 320 is larger than that of the third through hole 410. The elastic clamp 320 is located inside the fourth through hole 420. When it is necessary to assemble the slide bar 300 and the elastic element 400 together, the elastic clip 320 is passed through the third through hole 410 from top to bottom. The elastic clip 320 is elastic and shrinks when squeezed. After passing through the third through hole 410 and reaching the fourth through hole 420, the elastic clip 320 returns to its original shape, so that the slide bar 300 and the elastic element 400 are relatively fixed.

[0054] According to some embodiments of this utility model, refer to Figure 11 The elastic element 400 is cylindrical, made of plastic, and elastic. Its inner diameter is smaller than the outer diameter of the slide rod 300. The elastic element 400 is fitted onto the slide rod 300, and the interference fit between the slide rod 300 and the elastic element 400 fixes them relatively. It should be noted that the frictional force overcome by the interference fit between the slide rod 300 and the elastic element 400 is greater than the frictional force overcome by the interference fit between the elastic element 400 and the cylinder 100, ensuring that when the slide rod 300 is pulled to slide relative to the cylinder 100, the slide rod 300 and the elastic element 400 remain relatively fixed. Further, refer to... Figure 11The upper end face of the elastic member 400 is provided with a second notch 430, which extends downward and radially penetrates the outer and inner peripheral walls of the elastic member 400. The lower end face of the elastic member 400 is provided with a third notch 440, which extends upward and radially penetrates the outer and inner peripheral walls of the elastic member 400. The presence of the second notch 430 and the third notch 440 facilitates the expansion of the elastic member 400 so that it can be fitted onto the slide rod 300.

[0055] According to some embodiments of this utility model, the upper end of the slide rod 300 is provided with an external thread, and the upper end of the slide rod 300 is used for threaded connection with an item, including menus, display boards, etc., which have an internal thread structure. The threaded connection between the slide rod 300 and the item facilitates replacement. The lower end of the cylinder 100 is provided with an internal thread, and the lower end of the cylinder 100 is used for threaded connection with a base. The base is used to support the cylinder 100, and the base is disc-shaped, with an external thread structure on its upper surface.

[0056] In this specification, the reference to the term "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A retractable display support frame, characterized in that, include: A cylindrical body (100) having openings at both its upper and lower ends; A cylinder cover (200) is provided at the upper port of the cylinder body (100). The cylinder cover (200) is detachably connected to the cylinder body (100). The cylinder cover (200) is provided with a first through hole (210) which extends in the vertical direction. A slide rod (300) is provided, the lower end of which is connected to an elastic element (400). The outer diameter of the elastic element (400) is larger than the diameter of the first through hole (210). The diameter of the first through hole (210) is larger than the diameter of the slide rod (300). The lower end of the slide rod (300) is inserted into the cylinder (100). The elastic element (400) is located inside the cylinder (100) and is interference-fitted with the cylinder (100). The slide rod (300) can move relative to the cylinder (100) in the vertical direction.

2. The retractable display support frame according to claim 1, characterized in that, The cylinder cover (200) includes a first annular portion (230) and a second annular portion (240). The first annular portion (230) is located above the second annular portion (240). The first annular portion (230) and the second annular portion (240) are coaxially arranged. The upper end of the second annular portion (240) is fixedly connected to the lower end of the first annular portion (230). The outer diameter of the first annular portion (230) is larger than the outer diameter of the second annular portion (240). The second annular portion (240) is inserted into the cylinder body (100). The lower end face of the first annular portion (230) is attached to the upper end face of the cylinder body (100).

3. The retractable display support frame according to claim 2, characterized in that, The upper end face of the first annular portion (230) is inclined downward in a direction away from the axis of the first annular portion (230).

4. The retractable display support frame according to claim 2, characterized in that, The lower end face of the second annular portion (240) is provided with a first notch (241), the first notch (241) extends upward, and the first notch (241) penetrates radially through the outer peripheral wall and the inner peripheral wall of the second annular portion (240).

5. The retractable display support frame according to claim 2, characterized in that, The inner peripheral wall of the cylinder (100) is provided with a groove (110), and the outer peripheral wall of the second annular part (240) is provided with a barb (242), which is inserted into the groove (110).

6. The retractable display support frame according to claim 1, characterized in that, The cylinder cover (200) is provided with a second through hole (220), which is located above the first through hole (210). The second through hole (220) is coaxially arranged with the first through hole (210), and the lower end of the second through hole (220) communicates with the upper end of the first through hole (210). The second through hole (220) is interference-fitted with the slide rod (300).

7. The retractable display support frame according to claim 1, characterized in that, The elastic element (400) is cylindrical and has a third through hole (410) and a fourth through hole (420). The third through hole (410) and the fourth through hole (420) are coaxially arranged with the axis direction being vertical. The lower end of the third through hole (410) is connected to the upper end of the fourth through hole (420). The diameter of the third through hole (410) is smaller than that of the fourth through hole (420). The lower end face of the slide rod (300) is provided with a support column (310). The lower end of the support column (310) is connected to an elastic clip (320). The support column (310) passes through the third through hole (410). The outer diameter of the elastic clip (320) is larger than that of the third through hole (410). The elastic clip (320) is located inside the fourth through hole (420).

8. The retractable display support frame according to claim 1, characterized in that, The elastic element (400) is cylindrical, and the inner diameter of the elastic element (400) is smaller than the outer diameter of the slide rod (300). The elastic element (400) is sleeved on the slide rod (300), and the slide rod (300) and the elastic element (400) are interference-fitted.

9. The retractable display support frame according to claim 8, characterized in that, The upper end face of the elastic element (400) is provided with a second notch (430), which extends downward and penetrates radially through the outer and inner peripheral walls of the elastic element (400); the lower end face of the elastic element (400) is provided with a third notch (440), which extends upward and penetrates radially through the outer and inner peripheral walls of the elastic element (400).

10. The retractable display support frame according to claim 1, characterized in that, The upper end of the slide rod (300) is provided with an external thread, and an item is connected to the upper end of the slide rod (300) through the external thread; the lower end of the cylinder (100) is provided with an internal thread, and a base is connected to the lower end of the cylinder (100) through the internal thread.

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