Furniture screw and furniture

Abstract

The utility model discloses a furniture screw and furniture, the furniture screw comprises a screw head (100), the middle position of the top of the screw head (100) is provided with a straight slot (101), the bottom of the screw head (100) is connected with a screw rod (200), and the screw head (100) is provided with a twisting hole (102) along the radial direction corresponding to the straight slot (101). Due to the adoption of the structural design, that is, the twisting hole is formed in the screw head in the radial direction in a penetrating manner, so that a rod-shaped object is arranged in the twisting hole in a penetrating manner when a worker does not have a screwdriver, cannot twist the screw or cannot tighten the screw by hands; and the screwing or unscrewing operation of the screw is realized by twisting or assisting the screwdriver and screwing the screw head by hands.

Description

Technical Field

[0001] The utility model relates to the technical field of furniture, in particular to a furniture screw and furniture. Background Art

[0002] A screw is a common fastener widely used in machinery, electrical appliances, furniture, and buildings. Most screws are made of metal, cylindrical in shape, with concave and convex grooves on the surface, called threads, which are spiral inclined surfaces surrounding the side of the screw. With the development of modern industry, many screws have special functions, such as anti-loosening, anti-leakage, adjustable, lubricated, anti-seize, and pre-assembled, etc.

[0003] In the prior art, such as the Chinese utility model patent with the publication number CN209115487U, it discloses a flat head screw, including a screw head. At the middle position of the top of the screw head, there is a flat deep groove. At one end of the flat deep groove on the outside of the screw head, there is a convexity curling inward. At the middle position of the outside of the screw head, there is a groove. Vertically threaded teeth are evenly arranged above the groove on the outside of the screw head. The bottom of the screw head is connected to a screw rod, and horizontally threaded teeth are arranged at the bottom end of the outside of the screw rod. For the screw with the above structural design, when there is no screwdriver, it is not easy to complete the tightening and loosening operations of the screw; when there is a screwdriver, there may be a phenomenon that the external force cannot be twisted; when manually performing the tightening and loosening operations of the screw, there are situations of easy slippage and inability to twist with the applied external force, and it is also not easy to complete the tightening and loosening operations of the screw.

[0004] Therefore, the prior art needs to be improved and enhanced. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a new furniture screw to solve the above problems existing in the prior art.

[0006] Another purpose of the utility model is to provide a piece of furniture with the above furniture screw.

[0007] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A furniture screw includes a screw head. At the middle position of the top of the screw head, there is a flat groove. The bottom of the screw head is connected to a screw rod, and a twisting hole runs through the screw head radially corresponding to the flat groove.

[0009] As a further scheme of the utility model, the first side of the flat groove includes a first straight surface and a first inclined surface, the second side of the flat groove includes a second straight surface and a second inclined surface. The first straight surface is oppositely arranged with the second inclined surface, and the first inclined surface is oppositely arranged with the second straight surface.

[0010] As a further solution of the present utility model, the included angles between the first inclined surface and the second inclined surface and the end surface of the screw head are 20 degrees.

[0011] As a further solution of the present utility model, the length of the top edge of the first inclined surface and the second inclined surface is 1 / 2 of the diameter of the screw head, and the length of the bottom edge of the first inclined surface and the second inclined surface is less than 1 / 2 of the diameter of the screw head.

[0012] As a further solution of the present utility model, a plurality of strip-shaped protrusions are arranged on the outer circumferential surface of the screw head along the axial direction.

[0013] As a further solution of the present utility model, a V-shaped groove is arranged between two adjacent strip-shaped protrusions.

[0014] As a further solution of the present utility model, an external thread is arranged at one end of the screw rod away from the screw head.

[0015] As a further solution of the present utility model, an annular protrusion is arranged on the external thread of the screw rod near the screw head.

[0016] As a further solution of the present utility model, an annular arc surface is arranged at each of the two inlets of the twisting hole.

[0017] A piece of furniture, comprising any one of the above furniture screws.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] Due to the above structural design, that is, a twisting hole is radially penetrated through the screw head, when the staff cannot complete the tightening and loosening operations of the screw even without a screwdriver, when the screw cannot be twisted or by hand, a rod-shaped object is inserted into the twisting hole to twist or assist the screwdriver and twist the screw head by hand to realize the tightening and loosening operations of the screw. Description of the Drawings

[0020] Attached Figure 1 is a schematic structural diagram of an embodiment of the present utility model;

[0021] Attached Figure 2 is a side view of an embodiment of the present utility model;

[0022] Attached Figure 3 is a sectional view of an embodiment of the present utility model.

[0023] The reference numerals in the figure are respectively:

[0024] 100 - screw head, 200 - screw rod;

[0025] 101 - flat groove, 102 - twisting hole, 103 - strip-shaped protrusion, 104 - groove;

[0026] 1011 - First straight surface, 1012 - First inclined surface, 1013 - Second straight surface, 1014 - Second inclined surface;

[0027] 201 - External thread, 202 - Ring-shaped protrusion;

[0028] 1021 - Annular arc surface. Detailed implementation mode

[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] To facilitate the understanding of this embodiment, a furniture screw and furniture disclosed in the embodiments of the present utility model will be introduced in detail first.

[0031] Embodiment:

[0032] As Figures 1 - 3 shown, a furniture screw of the present application includes a screw head 100. A cross slot 101 is provided at the middle position of the top of the screw head 100. A groove is provided at the bottom of the screw head 101. A screw rod 200 is connected to the bottom of the groove for reducing the weight of the screw to reduce costs. A twisting hole 102 is radially penetrated through the screw head 100 corresponding to the cross slot 101 and located below the cross slot 101. Through the above structural design, when the staff does not have a screwdriver, the screw cannot be twisted or the screw tightening and loosening operations cannot be completed by hand, a rod-shaped object is inserted into the twisting hole 102, and the screw head is twisted or assisted by a screwdriver and by hand to realize the screw tightening and loosening operations, and the practicability is improved.

[0033] As a preferred embodiment of this example, the first side of the slotted groove 101 includes a first straight surface 1011 and a first inclined surface 1012, and the second side of the slotted groove 101 includes a second straight surface 1013 and a second inclined surface 1014. The first straight surface 1011 is disposed opposite to the second inclined surface 1014, and the first inclined surface 1012 is disposed opposite to the second straight surface 1013. Through the above structural design, when the screw is rotated clockwise and tightened to a certain extent, the frictional forces exerted by the first inclined surface 1012 and the second inclined surface 1013 on the head of the screwdriver are less than the torque of the screwdriver. The screwdriver slides out of the slotted groove 101 through the first inclined surface 1012 and the second inclined surface 1013, resulting in the torque of the screwdriver being unable to continue to be applied to both sides of the slotted groove 101, and also preventing the screw from being broken due to excessive force; when the screw is rotated counterclockwise, the torque of the screwdriver mainly acts on the screw through the first straight surface 1011 and the fourth straight surface 1014 of the slotted groove 100, so there is sufficient torque to withdraw the screw.

[0034] As a preferred embodiment of this example, the included angles between the first inclined surface 1012 and the second inclined surface 1013 and the end face of the screw head are 20 degrees; the length of the top edges of the first inclined surface 1012 and the second inclined surface 1013 is 1 / 2 of the diameter of the screw head 100, and the length of the bottom edges of the first inclined surface 1012 and the second inclined surface 1013 is less than 1 / 2 of the diameter of the screw head 100. By setting the relevant parameters of the first inclined surface 1012 and the second inclined surface 1013, the screwdriver can play a better corresponding role when screwing the screw.

[0035] Specifically, a plurality of strip-shaped protrusions 103 are arranged along the axial direction on the outer circumferential surface of the screw head 100, and a V-shaped groove 104 is arranged between two adjacent strip-shaped protrusions 103. Through the above structural design, when there is no screwdriver, it is also possible to install by hand. The strip-shaped protrusions 103 can increase the frictional force of hand installation, so as to achieve the effect of tightening and fixing.

[0036] Specifically, an external thread 201 is provided at one end of the screw rod 200 away from the screw head 100. Generally, two-thirds of the bottom end of the screw rod 200 is set as a threaded rod, and one-third of the screw rod close to the screw head 100 is set as a smooth rod, so that the product can be fixed emphatically, and smooth docking can be carried out on the upper part, and the fixing effect is good.

[0037] As a preferred embodiment of this example, an annular protrusion 202 is provided on the external thread of the screw rod 200 near the screw head 100. Through the design of the annular protrusion 202, the loosening of the screw can be prevented.

[0038] As a preferred embodiment of the present embodiment, annular arc surfaces 1021 are provided at both inlets of the twisting hole 102. By providing the annular arc surfaces 1021 at the inlets of the twisting hole 102, rod-shaped objects can be conveniently and quickly inserted into the twisting hole 102.

[0039] A piece of furniture includes any one of the above furniture screws.

[0040] In summary, through the above structural design, the present utility model solves the deficiencies in the prior art and has the characteristics of reasonable structure and improved practicability.

[0041] In addition, in the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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 components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0043] Finally, it should be noted that the above embodiments are only specific embodiments of the present utility model, used to illustrate the technical solutions of the present utility model, rather than limiting it. The protection scope of the present utility model is not limited thereto. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art within the technical scope disclosed by the present utility model can still modify the technical solutions recorded in the foregoing embodiments or easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes, or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model, and should all be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.

Claims

1. A furniture screw, comprising a screw head (100), a slot (101) is provided at the middle position of the top of the screw head (100), a screw rod (200) is connected to the bottom of the screw head (100), characterized in that: The screw head (100) is provided with a twisting hole (102) radially penetrating a position corresponding to the slot (101).

2. The furniture screw according to claim 1, characterized in that: The first side surface of the I-shaped groove (101) comprises a first straight surface (1011) and a first inclined surface (1012); the second side surface of the I-shaped groove (101) comprises a second straight surface (1013) and a second inclined surface (1014); the first straight surface (1011) and the second inclined surface (1014) are arranged opposite to each other; and the first inclined surface (1012) and the second straight surface (1013) are arranged opposite to each other.

3. The furniture screw according to claim 2, characterized in that: The included angle between the first inclined surface (1012), the second inclined surface (1014) and the end surface of the screw head (100) is 20 degrees.

4. The furniture screw according to claim 3, characterized in that: The length of the top sides of the first inclined surface (1012) and the second inclined surface (1014) is 1 / 2 of the diameter of the screw head (100), and the length of the bottom sides of the first inclined surface (1012) and the second inclined surface (1014) is less than 1 / 2 of the diameter of the screw head (100).

5. The furniture screw according to claim 1, characterized in that: The outer circumferential surface of the screw head (100) is provided with a plurality of strip-shaped protrusions (103) arranged along the axial direction.

6. The furniture screw according to claim 5, characterized in that: A V-shaped groove (104) is provided between two adjacent strip-shaped protrusions (103).

7. The furniture screw according to claim 1, characterized in that: An end of the screw rod (200) away from the screw head (100) is provided with an external thread (201).

8. The furniture screw according to claim 7, characterized in that: An annular protrusion (202) is provided on the external thread of the screw rod (200) near the screw head (100).

9. The furniture screw according to claim 1, characterized in that: An annular arc surface (1021) is provided at both entrances of the twisting hole (102).

10. A piece of furniture, characterized in that: The invention comprises the furniture screw according to any one of claims 1 to 9.

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