Free rotation type foot cup bolt and ground display device

Abstract

The utility model provides a free rotation type foot cup bolt and a ground display device, the free rotation type foot cup bolt comprises a supporting foot cup, the supporting foot cup comprises an adjusting cavity, and the center of the top of the supporting foot cup is provided with a through hole communicated with the adjusting cavity; the bolt comprises a nut and a stud, one end of the stud is fixed with the nut, the other end of the stud penetrates through the through hole from the bottom and extends out, the nut is screwed in and locked from the other end of the stud, and the nut is arranged in the adjusting cavity; one of the two thrust bearings is arranged between the nut and the supporting base, the other thrust bearing is arranged between the nut and the supporting base, and the bolt can be separated from the constraint of the supporting foot cup and freely rotate through the two thrust bearings; according to the ground display device, the free rotating type foot cup bolt is in contact with the ground, the friction force between the foot cup and the ground is isolated, and the problem that in the prior art, due to the friction force between the foot cup and the ground, a fixed type foot cup bolt is difficult to rotate and adjust is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ground display, in particular to a freely rotatable foot cup bolt and a ground display device. Background Art

[0002] In recent years, with the rapid development of information technology, as a new display technology, ground display devices have been widely used in various commercial and public places. Ground display devices not only have a large display area, can provide a more shocking visual effect, but also can attract more audience attention and enhance the attractiveness and competitiveness of the venue.

[0003] However, there are many problems in the installation and adjustment process of traditional ground display devices. First of all, the installation process is complex and cumbersome, requiring a large amount of time and labor costs. Especially when it is necessary to install in a ground groove, how to ensure the stability and levelness of the device is a huge challenge. Secondly, when adjusting the position and height of traditional ground display devices, foot cup bolts fixed in the ground groove are often used for adjustment. By adjusting the position of the chassis on the bolts in the foot cup bolts, but the foot cup of the existing foot cup bolts on the market is fixed to the bolt bracket. When the bolt is rotated, the foot cup in contact with the ground will rotate together. However, due to the gravity of the chassis, the friction between the foot cup and the ground is very large, and the adjustment is very laborious or even impossible to adjust; therefore, a freely rotatable foot cup bolt is needed to solve the above problems. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the technical problem to be solved by the present utility model is to provide a freely rotatable foot cup bolt and a ground display device, so as to solve the problem that the rotation adjustment of the fixed foot cup bolt in the prior art is difficult due to the friction between the foot cup and the ground.

[0005] To solve the above technical problems, the present utility model provides a freely rotatable foot cup bolt, comprising:

[0006] A support foot cup, the support foot cup includes an adjustment cavity, and a through hole communicating with the adjustment cavity is opened at the center of the top of the support foot cup;

[0007] A bolt and a nut adapted to the bolt, the bolt includes a nut and a stud fixed to one end of the nut, the other end of the stud passes through the through hole from the bottom and extends out, the nut is screwed and locked from the other end of the stud, and the nut is arranged in the adjustment cavity;

[0008] Two thrust bearings, one of which is arranged between the nut and the support base, and the other thrust bearing is arranged between the nut and the support base. Through the two thrust bearings, the bolt can be free from the constraint of the support foot cup and rotate freely.

[0009] As a more preferred embodiment, the supporting foot cup includes a buffer layer arranged at the lower layer and a bearing layer arranged at the upper layer. When the freely rotating foot cup bolt is used as a support, the buffer layer contacts the ground to achieve shock absorption. At the same time, when there is a small amount of gravel on the ground, the buffer layer can also ensure that the foot cup does not tilt through a certain deformation, and the bearing layer is used to support various components.

[0010] As a more preferred manner, the bearing layer is made of metal material, thereby satisfying the sufficient bearing capacity required by the bearing layer.

[0011] As a more preferred manner, the buffer layer is made of rubber material. The rubber material can well meet the shock-absorbing and deformation characteristics required by the buffer layer. At the same time, the material is simple and easy to obtain, which can reduce costs.

[0012] As a more preferred manner, a slot is provided at the other end of the stud for conveniently rotating the stud from the upper side of the stud.

[0013] As a more preferred manner, the other end of the stud is provided with a hexagonal structure for conveniently rotating the stud from the upper side of the stud.

[0014] As a more preferred embodiment, the thrust bearing includes a thrust washer, a plurality of rolling elements and a retaining frame, wherein the plurality of rolling elements are arranged in the retaining frame, and the retaining frame fixes the positions of the rolling elements to ensure that they maintain the correct arrangement and spacing inside the bearing, one side of the thrust washer contacts with the rolling elements, and the rolling elements provide smooth rotation for the thrust washer, and the other end of the thrust washer contacts with the nut, thereby allowing the bolt to rotate freely without the constraint of the supporting foot cup.

[0015] In order to solve the above problems, the utility model also provides a ground display device, which is arranged in a ground groove, and includes:

[0016] A number of the above-mentioned free-turning foot cup bolts;

[0017] Fixed chassis, threaded holes adapted to the freely rotatable foot cup bolts are provided at the bottom of the fixed chassis, and the other ends of several of the freely rotatable foot cup bolts are arranged in the threaded holes. The fixed chassis is arranged in the ground groove and contacts the bottom of the ground groove through the support feet of the freely rotatable foot cup bolts. In this way, when the fixed chassis is installed in the ground groove, rotating the bolts can adjust the horizontal height of the fixed chassis, thereby realizing the leveling and position fine-tuning of the ground display device.

[0018] As a more preferred method, the ground display device further includes a display unit, and the display unit is arranged on the fixed chassis and displays graphics towards the outside of the ground groove.

[0019] As a more preferred method, the ground display device further includes a transparent protective cover body, and the transparent protective cover body is used to cover the ground groove and protect each structure arranged in the ground groove.

[0020] As described above, the freely rotatable foot cup bolts and the ground display device of the present invention have the following beneficial effects: When the freely rotatable foot cup bolts of the present invention are in use, since thrust bearings are arranged between the nut and the support base and between the nut and the support base, the support base does not directly contact the bolt, greatly reducing the friction force received by the bolt during rotation, enabling the bolt to freely rotate out of the restraint of the support foot cup;

[0021] The ground display device of the present invention contacts the ground through the freely rotatable foot cup bolts. By rotating the bolts, the position of the fixed chassis on the studs can be adjusted, thereby realizing the adjustment of the horizontal height of the fixed chassis, and further making it more convenient to level and fine-tune the position of the ground display device; Compared with the structure in the traditional solution where the foot cup is fixed to the bolt, the friction force between the foot cup and the ground does not act on the bolt, and the bolt can freely rotate out of the restraint of the support foot cup, and the rotation is smoother.

[0022] In summary, for the freely rotatable foot cup bolts and the ground display device of the present invention, the freely rotatable foot cup bolts achieve the free rotation of the bolts by spacing the connection between the support foot cup and the bolt through thrust bearings. The ground display device uses the freely rotatable foot cup bolts to contact the ground, isolating the friction force between the foot cup and the ground, realizing the adjustment of the position of the fixed chassis, and solving the problem in the prior art that the fixed foot cup bolts are difficult to rotate and adjust due to the friction force between the foot cup and the ground. Description of the Drawings

[0023] Figure 1 Shown is an exploded schematic view of the freely rotatable foot cup bolts of the present invention;

[0024] Figure 2 Show the installation schematic diagram of the freely rotatable foot cup bolt of the present utility model and the fixed chassis;

[0025] Figure 3 Show the schematic diagram of the ordinary perspective of the freely rotatable foot cup bolt of the present utility model.

[0026] Element number description

[0027] 1 Freely rotatable foot cup bolt

[0028] 11 Support foot cup

[0029] 111 Adjustment cavity

[0030] 112 Through hole

[0031] 113 Bearing layer

[0032] 114 Buffer layer

[0033] 12 Bolt

[0034] 121 Nut

[0035] 122 Stud

[0036] 122a Slotted head

[0037] 13 Nut

[0038] 14 Thrust bearing

[0039] 141 Thrust washer

[0040] 142 Rolling element

[0041] 143 Cage

[0042] 2 Fixed chassis Specific implementation mode

[0043] The following specific embodiments illustrate the implementation mode of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0044] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limited conditions under which the present utility model can be implemented. Therefore, they do not have substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is only limited by the claims of the published patent. The terms used here are only for describing specific embodiments and are not intended to limit this application. Spatially related terms, such as "upper", "lower", "left", "right", "below", "beneath", "lower part", "above", "upper part", etc., may be used in the text to facilitate the description of the relationship between one element or feature shown in the figure and another element or feature.

[0045] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed", "held" should be understood in a broad sense. For example, it 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 communication inside 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 circumstances.

[0046] Furthermore, as used herein, the singular forms "a", "an", and "the" are also intended to include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising", "including" indicate the presence of the described features, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or meaning any one or any combination. Therefore, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B, and C". An exception to this definition only occurs when the combination of elements, functions, or operations is inherently mutually exclusive in some way.

[0047] As Figures 1 to 3 shown, the present utility model provides a freely rotatable foot cup bolt 1, including:

[0048] A support foot cup 11, the support foot cup 11 includes an adjustment cavity 111, and a through hole 112 communicating with the adjustment cavity 111 is provided at the center of the top of the support foot cup 11;

[0049] A bolt 12 and a nut 13 adapted to the bolt 12. The bolt 12 includes a nut 121 and a stud 122 fixed to one end of the nut 121. The other end of the stud 122 passes through the through hole 112 from the bottom and protrudes. The nut 13 is screwed onto the other end of the stud 122 and locked, and the nut 121 is disposed in the adjustment cavity 111;

[0050] Two thrust bearings 14. One of the thrust bearings 14 is disposed between the nut 121 and the support base, and the other thrust bearing 14 is disposed between the nut 13 and the support base. Through the two thrust bearings 14, the bolt 12 can rotate freely without being restricted by the support foot cup 11.

[0051] In order to better introduce the freely rotatable foot cup bolt 1 of the present invention, the following specific applications are now combined for illustration: When the freely rotatable foot cup bolt 1 of the present invention is in use, since thrust bearings 14 are provided between the nut 121 and the support base and between the nut 13 and the support base, the support base does not directly contact the bolt 12, greatly reducing the frictional force received by the bolt 12 during rotation, enabling the bolt 12 to rotate freely without being restricted by the support foot cup 11.

[0052] In this embodiment, after the nut 13 is screwed onto the other end of the stud 122 and locked, the nut 13 and the stud 122 are adhered with thread glue to further improve the tightness of the connection between the nut and the stud.

[0053] In this embodiment, as Figure 1 shown, the support foot cup 11 includes a buffer layer 114 provided on the lower layer and a bearing layer 113 provided on the upper layer. When the freely rotatable foot cup bolt 1 is used as a support, the buffer layer 114 contacting the ground can play a shock-absorbing role. At the same time, when there is a small amount of gravel on the ground, the buffer layer 114 can also ensure that the foot cup does not tilt through a certain deformation, and the bearing layer 113 is used to carry each component.

[0054] In this embodiment, as Figure 1 shown, the bearing layer 113 is made of a metal material, thereby meeting the sufficient bearing capacity required by the bearing layer 113.

[0055] In this embodiment, as Figure 1 shown, the buffer layer 114 is made of a rubber material. The rubber material can well meet the shock-absorbing and deformation characteristics required by the buffer layer 114. At the same time, the material is simple and easy to obtain, which can reduce costs.

[0056] In this embodiment, as Figure 1and Figure 3 As shown, the other end of the stud 122 is provided with a slotted screwdriver groove 122a for conveniently rotating the stud 122 from the upper side of the stud 122; as another embodiment, the other end of the stud 122 may also be provided with an internal hexagonal structure for conveniently rotating the stud 122 from the upper side of the stud 122.

[0057] In this embodiment, as Figure 1 shown, the thrust bearing 14 includes a thrust washer 141, a plurality of rolling elements 142 and a cage 143. The plurality of rolling elements 142 are arranged in the cage 143. The cage 143 fixes the positions of the respective rolling elements 142 to ensure their correct arrangement and spacing inside the bearing. One side of the thrust washer 141 contacts the rolling elements 142, and the rolling elements 142 provide smooth rotation for the thrust washer 141. The other end of the thrust washer 141 contacts the nut 121 or the nut 13, so that the bolt 12 can rotate freely out of the restraint of the support foot cup 11; further, the number of the thrust washers 141 included in the thrust bearing 14 can be selected to use a single thrust washer 141 or two thrust washers 141 according to the material of its contact surface. More specifically, in this embodiment, for the thrust bearing 14 provided between the nut 121 and the support base, since the bearing layer 113 in contact with the support base is made of hard metal, the rolling elements 142 can directly contact the support base and slide relatively without an additional thrust washer 141. From the perspective of cost savings, the thrust bearing 14 can be provided with a thrust washer 141 only on the side in contact with the nut 13; similarly, for the support bearing provided between the nut 13 and the support base, since the buffer layer 114 in contact with the support base is made of rubber, the rolling elements 142 cannot slide smoothly on the rubber, so thrust washers 141 need to be provided on both sides of the rolling elements 142.

[0058] To solve the above problems, the present invention further provides a ground display device disposed in a ground groove, including:

[0059] a plurality of the above-mentioned freely rotatable foot cup bolts 1;

[0060] a fixed chassis 2. The bottom of the fixed chassis 2 is provided with threaded holes adapted to the freely rotatable foot cup bolts 1. The other ends of the plurality of freely rotatable foot cup bolts 1 are disposed in the threaded holes. The fixed chassis 2 is disposed in the ground groove and contacts the bottom of the ground groove through the support foot cup 11 of the freely rotatable foot cup bolts 1. In this way, when the fixed chassis 2 is installed in the ground groove, rotating the bolt 12 can adjust the horizontal height of the fixed chassis 2, thereby realizing the leveling and position fine-tuning of the ground display device.

[0061] In order to better introduce the ground display device of the utility model, the following specific applications are now described: Figure 2 As shown, the ground display device of the utility model contacts the ground through the free-rotating foot cup bolt 1, and the position of the fixed chassis 2 on the stud 122 can be adjusted by rotating the bolt 12, so as to achieve the adjustment of the horizontal height of the fixed chassis 2, and then the leveling and position fine-tuning of the ground display device can be made more convenient; compared with the structure in which the foot cup and the bolt 12 are fixed in the traditional scheme, the friction between the foot cup and the ground will not act on the bolt 12, and the bolt 12 can be free from the constraint of the supporting foot cup 11 and rotate freely, and the rotation is smoother; in summary, the free-rotating foot cup bolt and the ground display device of the utility model, wherein the free-rotating foot cup bolt 1 supports the connection between the foot cup 11 and the bolt 12 through the thrust bearing 14, so as to achieve the free rotation of the bolt 12, and the ground display device utilizes the free-rotating foot cup bolt 1 to contact the ground, isolates the friction between the foot cup and the ground, and achieves the adjustment of the position of the fixed chassis 2, and solves the problem of the difficulty of rotation adjustment of the fixed foot cup bolt 12 due to the friction between the foot cup and the ground in the prior art.

[0062] In the present embodiment, the ground display device also includes a display unit, which is arranged on the fixed chassis 2 and displays graphics toward the outside of the ground groove; further, in the present embodiment, the display unit includes a circuit substrate and a plurality of light-emitting elements evenly arranged on the circuit substrate; further, in the present embodiment, the light-emitting element adopts LED, and its main advantages are reflected in the following aspects: high efficiency and energy saving: LED has low operating voltage, low power consumption, and relatively small power consumption for long-term use; long service life: LED lamp has no filament, is not easy to break, and has a service life of more than 50,000 hours; healthy light: the light emitted by LED does not contain ultraviolet and infrared rays, does not generate radiation, and is harmless to the human body; green and environmentally friendly: LED lamp does not contain harmful elements such as mercury, xenon, etc., which is beneficial to environmental protection and recycling; flexible application: LED lamp is small in size and can be made into various shapes such as points, lines, and surfaces, which is convenient for application in various occasions; because of the above advantages, it has been widely used in the field of ground display devices.

[0063] In this embodiment, the ground display device further includes a transparent protective cover body, which is used to cover the ground groove and protect each structure arranged in the ground groove; further, in this embodiment, the transparent protective cover body is made of tempered glass. Tempered glass as a transparent protective cover has multiple advantages: High strength: Tempered glass has higher mechanical strength, impact resistance and flexural strength than ordinary glass, and can reach 4 to 5 times that of ordinary glass. This means that it can withstand greater external pressure and impact, effectively protecting the internal equipment or items from damage; Thermal stability: Tempered glass has excellent thermal stability and can withstand large temperature differences without breaking. Its ability to resist temperature differences is 3 times that of ordinary float glass of the same thickness, so it is suitable for various environments with large temperature changes; Safety: When tempered glass is damaged by external force, its fragments will quickly form small obtuse particles instead of sharp fragments. This characteristic greatly reduces the risk of injury to the surrounding people and improves the use safety, especially suitable for public places where ground display devices are arranged; Transparency: Tempered glass maintains good transparency, enabling people to clearly see the equipment or items inside the protective cover, facilitating inspection, maintenance and observation; Durability: Due to the high strength and excellent performance of tempered glass, its service life is relatively long, and it can maintain transparency and beauty for a long time, reducing the frequency of replacement and maintenance; It can be seen that using tempered glass as a transparent protective cover can not only effectively protect the internal equipment or items, but also improve the use safety and convenience, and is suitable for occasions such as ground display devices that require high-strength and high-transparency protective covers.

[0064] It can be seen that the freely rotatable foot cup bolt 1 of this embodiment has the following advantages:

[0065] 1. Reducing friction: By using the thrust bearing 14, the friction force suffered by the bolt 12 during rotation is greatly reduced.

[0066] 2. Free rotation: The bolt 12 can break away from the restraint of the support foot cup 11 and achieve free rotation.

[0067] 3. Structural optimization: The support foot cup 11 includes a buffer layer 114 and a bearing layer 113, providing shock absorption and bearing functions.

[0068] 4. Material selection: The bearing layer 113 is made of metal material to provide sufficient bearing capacity, and the buffer layer 114 is made of rubber material to reduce costs and meet the shock absorption requirements.

[0069] 5. Convenient rotation: The other end of the stud 122 is designed with a slotted head 122a or an internal hexagonal structure, which is convenient for rotation.

[0070] 6. Thrust bearing 14 design: Select the number of thrust washers 141 according to the contact surface material to optimize costs and performance.

[0071] The ground display device in this embodiment has the following advantages:

[0072] 1. Convenient adjustment: By turning the bolt 12, the horizontal height of the fixed chassis 2 can be adjusted to achieve quick leveling and fine-tuning.

[0073] 2. Reducing the influence of friction: The friction between the foot cup and the ground will not act on the bolt 12, ensuring smooth rotation adjustment.

[0074] 3. Protection performance: The transparent protective cover effectively protects the internal equipment, while maintaining high transparency for easy observation and maintenance.

[0075] In summary, this freely rotatable foot cup bolt 1 and its application in the ground display device provide a solution with a simple structure, convenient adjustment, durability, and high cost-effectiveness.

[0076] Therefore, the utility model effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0077] The above embodiments are only illustrative of the principles and effects of the utility model, and are not intended to limit the utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the utility model should still be covered by the claims of the utility model.

Claims

1. A freely rotating foot cup bolt (1), characterized in that: include: A support foot cup (11), the support foot cup (11) comprising an adjustment cavity (111), a through hole (112) communicating with the adjustment cavity (111) being provided at the center of the top of the support foot cup (11); A bolt (12) and a nut (13) matched with the bolt (12), the bolt (12) comprising a nut (121) and a stud (122) with one end fixed to the nut (121), the other end of the stud (122) passing through the through hole (112) from the bottom and extending out, the nut (13) is screwed into and locked from the other end of the stud (122), and the nut (121) is arranged in the adjustment cavity (111); Two thrust bearings (14), one of which is arranged between the nut (121) and the support base, and the other thrust bearing (14) is arranged between the nut (13) and the support base. Through the two thrust bearings (14), the bolt (12) can be free from the constraint of the support foot cup (11) and rotate freely.

2. The free-rotating foot cup bolt (1) according to claim 1, characterized in that: The supporting foot cup (11) comprises a buffer layer (114) arranged at a lower layer and a bearing layer (113) arranged at an upper layer.

3. The free-rotating foot cup bolt (1) according to claim 2, characterized in that: The bearing layer (113) is made of metal material.

4. The free-rotating foot cup bolt (1) according to claim 2, characterized in that: The buffer layer (114) is made of rubber material.

5. The free-rotating foot cup bolt (1) according to claim 1, characterized in that: The other end of the stud (122) is provided with a slot (122a) for conveniently rotating the stud (122) from the upper side of the stud (122).

6. The free-rotating foot cup bolt (1) according to claim 1, characterized in that: The other end of the stud (122) is provided with an inner hexagonal structure for conveniently rotating the stud (122) from the upper side of the stud (122).

7. The free-rotating foot cup bolt (1) according to claim 1, characterized in that: The thrust bearing (14) comprises a thrust washer (141), a plurality of rolling bodies (142) and a retaining frame (143). The plurality of rolling bodies (142) are arranged in the retaining frame (143). The retaining frame (143) fixes the positions of the rolling bodies (142) to ensure that they maintain the correct arrangement and spacing inside the bearing. One side of the thrust washer (141) contacts the rolling body (142). The rolling body (142) provides smooth rotation for the thrust washer (141). The other end of the thrust washer (141) contacts the nut (121) or the nut (13), thereby enabling the bolt (12) to rotate freely without being constrained by the supporting foot cup (11).

8. A floor display device, arranged in a floor groove, characterized in that: include: The free-rotating foot cup bolt (1) as claimed in any one of claims 1 to 7; A fixed case (2), wherein the bottom of the fixed case (2) is provided with a threaded hole adapted to the freely rotating foot cup bolt (1), the other ends of a plurality of the freely rotating foot cup bolts (1) are arranged in the threaded hole, the fixed case (2) is arranged in the floor groove, and the supporting foot cup (11) of the freely rotating foot cup bolt (1) contacts the bottom of the floor groove, so that when the fixed case (2) is installed in the floor groove, the horizontal height of the fixed case (2) can be adjusted by rotating the bolt (12), thereby realizing the leveling and position fine-tuning of the floor display device.

9. The floor display device according to claim 8, characterized in that: The floor display device also includes a display unit, which is arranged on the fixed chassis (2) and displays graphics toward the outside of the floor groove.

10. The floor display device according to claim 8, characterized in that: The floor display device further comprises a transparent protective cover body, and the transparent protective cover body is used to cover the floor groove and protect various structures arranged in the floor groove.

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