Embedded hinge

Abstract

The utility model belongs to the technical field of hinges, and particularly discloses an embedded hinge. The embedded hinge comprises a hinge shaft and two embedded blocks, connecting blocks extending forwards are arranged on the portions, close to the front ends, of the outer side faces of the embedded blocks, a plurality of convex lugs are arranged on the front end faces of the connecting blocks, hinge shaft holes penetrating left and right are formed in the convex lugs, the convex lugs on the two connecting blocks are arranged in a staggered mode, and the hinge shaft penetrates through the hinge shaft holes in the convex lugs. The front end of the embedded block is provided with an inserting part, and the rear end of the embedded block is provided with a left limiting protruding block and a right limiting protruding block. The embedded hinge provided by the utility model can be applied to a box body structure to realize the hinge joint of two box shells. The embedded block of the embedded hinge can be embedded in the embedded groove in the box shell, and the effect of improving the strength of the box shell is achieved. Compared with a traditional hinge, the embedded hinge has the advantages that the contact area between the embedded hinge and the box shells is large, high-strength connection between the two box shells can be achieved, the embedded hinge is not prone to falling off after being installed, and the two box shells are not prone to scattering.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, specifically to an embedded hinge. Background Technology

[0002] Suitcases are common everyday items, mainly consisting of a box body, which comprises two shells that are hinged together on one side and can be opened and closed on the other side.

[0003] To enable the hinged connection between two housing shells, a hinge is typically installed between them. A traditional hinge mainly consists of two hinged blades, each fixed to the corresponding housing shell by screws or other means, allowing relative rotation between the two housing shells.

[0004] In practical applications, the functions of the luggage compartment have been continuously expanded. For example, we have developed a box-type folding bed based on the existing luggage compartment, giving it the dual functions of a suitcase and a folding bed. This type of box-type folding bed requires high structural strength and connection strength of the box shell. The hinges of the transmission system cannot meet these requirements. The main problems are: 1. Traditional hinges only connect the two box shells with two flaps, resulting in low connection strength and easy damage. 2. Traditional hinges are completely exposed on the outside of the box shell, which is not aesthetically pleasing and is prone to falling off. Utility Model Content

[0005] The purpose of this invention is to provide an embedded hinge that addresses the above-mentioned problems, solving the issues of low connection strength and easy detachment of traditional hinges.

[0006] To achieve the above objectives, this utility model discloses an embedded hinge, which includes a hinge shaft and two mounting blocks. A connecting block extending forward is provided on the outer surface of each mounting block near its front end. The front face of the connecting block has several lugs, each with a through-hole hinge shaft. The lugs on the two connecting blocks are staggered, and the hinge shaft passes through the hinge shaft holes on each lug. With this structure, the embedded hinge can be applied to a housing. The mounting blocks are used to engage with mounting slots on the housing shell, which not only facilitates the installation of the embedded hinge but also increases the structural strength of the housing. By providing a connecting block on the outer surface of the mounting block and having lugs with hinge shaft holes on the connecting block, the two mounting blocks have a large range of motion after the hinge shaft holes are installed.

[0007] Furthermore, multiple lugs are spaced apart on the left and right sides of the front end face of the connecting block. With the above structure, the multiple lugs increase the hinge strength of the two connecting blocks, that is, increase the hinge strength of the embedded hinge.

[0008] Furthermore, the front end of the insert block is provided with a plug-in portion, and the front end face of the plug-in portion is located behind the hinge shaft. With the above structure, the plug-in portion can engage with the plug-in slot on the housing to keep the insert block in the insert slot. With the front end face of the plug-in portion located behind the hinge shaft, the two insert blocks can be laid flat.

[0009] Furthermore, the rear end of the insert block is provided with two left and right limiting protrusions. With the above structure, the two limiting protrusions can respectively engage with two limiting grooves to keep the insert block within the insert grooves.

[0010] Furthermore, the insert block is an elongated strip whose width gradually increases from the front end to the rear end. The elongated shape of the insert block, with its gradually increasing width, matches the gradually increasing width of the insert slot, facilitating insertion of the insert block into the slot.

[0011] Furthermore, the front end face of the insert block is provided with a bolt connection portion for screwing in a fixing bolt. With the above structure, the fastening bolt can be screwed into the bolt connection portion after passing through the fixing hole on the housing, realizing the bolt connection between the insert block and the housing. Combined with the insertion of the insert block and the insert groove, the connection between the insert block and the housing can be made more secure.

[0012] Furthermore, the inner surface of the front end of the insert block is provided with a mounting groove, in which a nut is installed. The front face of the insert block is provided with a connecting hole that communicates with the threaded hole. The nut and the connecting hole together form the bolt connection portion. The insert block is typically a plastic part; installing the nut in the mounting groove increases the bolt connection strength.

[0013] Furthermore, the bolt connection includes a threaded hole on the front end face of the insert block. With the above structure, the connection with the fastening bolt can also be achieved by directly providing a threaded hole on the front end face of the insert block, making the structure of the insert block simpler.

[0014] Furthermore, the outer surface of the mounting block is provided with an expansion protrusion, and the expansion protrusion has a pin hole. With the above structure, after the two shells are opened relative to each other, the expansion protrusion can abut against the other shell to keep the two shells flat. After the two shells are closed relative to each other, the expansion protrusion and the pin hole on the expansion protrusion can be used to hang items, realizing the functional expansion of the shell.

[0015] Furthermore, the insert block includes a long strip extending front to back, with multiple transverse reinforcing plates spaced apart on the inner side of the strip, and longitudinal reinforcing plates extending front to back on the inner side of the strip, the longitudinal reinforcing plates connecting to the transverse reinforcing plates at their middle portions. With this structure, the surface of the strip is smooth, and after the insert block is installed in the mounting groove, the strip is flush with the outer surface of the housing, resulting in a more aesthetically pleasing appearance. The transverse and longitudinal reinforcing plates increase the overall structural strength of the insert block.

[0016] In summary, the beneficial effects of this utility model are as follows: The embedded hinge provided by this utility model can be applied to a box structure to achieve the hinge connection between two box shells. The embedding block of the embedded hinge can be embedded in the embedding groove on the box shell, which increases the strength of the box shell. Compared with traditional hinges, this embedded hinge has a larger contact area with the box shell, which can achieve a high-strength connection between the two box shells. After installation, it is not easy to fall off, and the two box shells are not easy to fall apart. After the two box shells are opened relative to each other, the expansion protrusion can abut against the other box shell to keep the two box shells flat. After the two box shells are closed relative to each other, the expansion protrusion and the pin hole on the expansion protrusion can be used to hang items, realizing the functional expansion of the box. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0018] Figure 2 yes Figure 1 A schematic diagram of one embodiment of the mounting block shown in the embodiment is provided.

[0019] Figure 3 This is a structural diagram illustrating how this utility model is used in bags and luggage;

[0020] Figure 4 yes Figure 3 Enlarged view of part A in the image;

[0021] Figure 5 This is a schematic diagram of the installation method of this utility model on the box;

[0022] Figure 6 This is a schematic diagram of another embodiment of the present invention.

[0023] In the diagram: 1. Hinge shaft, 2. Mounting block, 3. Connecting block, 4. Lug, 5. Hinge shaft hole, 6. Insertion part, 7. Limiting protrusion, 8. Mounting groove, 9. Nut, 10. Connecting hole, 11. Extending protrusion, 12. Pin hole, 14. Long strip plate, 15. Transverse reinforcing plate, 16. Longitudinal reinforcing plate, 17. Housing, 18. Mounting groove, 19. Limiting groove, 20. Insertion groove, 21. Fixing hole, 22. Fastening bolt, 23. Washer. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] Reference Figure 1 , Figure 2In some embodiments of this utility model, the embedded hinge includes a hinge shaft 1 and two mounting blocks 2. A connecting block 3 extending forward is provided on the outer side of the mounting block 2 near its front end. The front end face of the connecting block 3 has several lugs 4, each lug having a through-hole 5. The lugs 4 on the two connecting blocks 3 are staggered, and the hinge shaft 1 passes through the hinge holes 5 on each lug 4. This embedded hinge can be applied to a housing. The mounting blocks 2 are used to engage with the mounting grooves 18 on the housing 17, which not only facilitates the installation of the embedded hinge but also increases the structural strength of the housing. By providing the connecting block 3 on the outer side of the mounting block 2 and providing lugs 4 with hinge holes 5 on the connecting block 3, the two mounting blocks 2 have a large range of motion after the hinge holes 5 are installed.

[0026] In some embodiments of this invention, multiple lugs 4 are provided at intervals along the front end face of the connecting block 3. The multiple lugs 4 increase the hinge strength between the two connecting blocks 3, thus increasing the hinge strength of the embedded hinge.

[0027] In some embodiments of this utility model, the front end of the insert block 2 is provided with a plug-in portion 6, and the front end face of the plug-in portion 6 is located behind the hinge shaft 1. The plug-in portion 6 can be engaged with the plug-in groove 20 on the housing 17 to keep the insert block 2 in the insert groove 18. The front end face of the plug-in portion 6 is located behind the hinge shaft 1, and the two insert blocks 2 can be laid flat.

[0028] In some embodiments of this utility model, the rear end of the insert block 2 is provided with two left and right limiting protrusions 7. The two limiting protrusions 7 can respectively engage with two limiting grooves 19 to keep the insert block 2 within the insert groove 18.

[0029] In some embodiments of this utility model, the insert block 2 is an elongated strip whose width gradually increases from the front end to the rear end. The insert block 2 adopts an elongated shape with gradually increasing width, which can match the insert groove 18 with gradually increasing width, making it convenient for the insert block 2 to be inserted into the insert groove 18.

[0030] In some embodiments of this utility model, the front end face of the insert block 2 is provided with a bolt connection portion for screwing in a fixing bolt. With the above structure, the fastening bolt 22 can be screwed into the bolt connection portion after passing through the fixing hole 21 on the housing 17, realizing the bolt connection between the insert block 2 and the housing 17. Combined with the insertion of the insert block 2 and the insertion groove 18, the connection between the insert block 2 and the housing 17 can be made more secure.

[0031] Reference Figure 5In some embodiments of this utility model, the inner side of the front end of the insert block 2 is provided with a mounting groove 8, and a nut 9 is installed in the mounting groove 8. The front end face of the insert block 2 is provided with a connecting hole 10 communicating with the threaded hole. The nut 9 and the connecting hole 10 together form the bolt connection part. The insert block 2 is usually a plastic part, and the bolt connection strength can be increased by installing the nut 9 in the mounting groove 8.

[0032] In some other embodiments of this utility model, the bolt connection portion includes a threaded hole provided on the front end face of the insert block 2. The connection with the fastening bolt 22 can also be achieved by directly providing a threaded hole on the front end face of the insert block 2, thus simplifying the structure of the insert block 2.

[0033] Reference Figure 1 , Figure 2 In some embodiments of this utility model, an extension protrusion 11 is provided on the outer surface of the mounting block 2, and a pin hole 12 is provided on the extension protrusion 11. After the two shells 17 are opened relative to each other, the extension protrusion 11 can abut against the other shell 17 to keep the two shells 17 flat. After the two shells 17 are closed relative to each other, the extension protrusion 11 and the pin hole 12 on the extension protrusion 11 can be used to hang items, realizing the functional expansion of the box.

[0034] In other embodiments of this utility model, the mounting block 2 includes a long strip 14 extending front to back. Multiple transverse reinforcing plates 15 are spaced apart on the inner side of the long strip 14, and longitudinal reinforcing plates 16 extending front to back are also provided on the inner side of the long strip 14. The longitudinal reinforcing plates 16 are connected to the middle of the transverse reinforcing plates 15. The outer surface of the long strip 14 is smooth. After the mounting block 2 is inserted into the mounting groove 18, the long strip 14 is flush with the outer surface of the housing 17, which is aesthetically pleasing. The transverse reinforcing plates 15 and the longitudinal reinforcing plates 16 can increase the overall structural strength of the mounting block 2.

[0035] Reference Figure 3 , Figure 4 , Figure 5 The utility model is used in the box body as follows: The box body includes two box shells 17. Several mounting grooves 18 are provided on one side where the two box shells 17 are hinged. The mounting grooves 18 extend from the part near the edge of the box shell 17 to the bottom surface of the box shell 17. The mounting grooves 18 are provided with two left and right limiting grooves 19 at the groove opening on the bottom surface of the box shell 17. The groove wall of the mounting groove 18 near the edge of the box shell 17 is provided with a concave insertion groove 20. The bottom of the insertion groove 20 is provided with a fixing hole 21. The two mounting blocks 2 of the embedded hinge are respectively embedded into the mounting grooves 18 on the two box shells 17, wherein the insertion part 6 extends into the insertion groove 20, and the two limiting protrusions 7 are respectively inserted into the two limiting grooves 19 on the box shell 17.

[0036] Reference Figure 6In some other embodiments of this utility model, the insert block 2 may not have an extension protrusion 11, so that the insert block 2 has a flat outer surface.

[0037] Reference Figure 5 The following is a method for installing the present invention on the housing: Insert the insert block 2 into the limiting groove 19 along the extension direction of the limiting groove 19, and first let the insertion part 6 enter the insertion groove 20; when the insert block 2 is fully inserted into the insert groove 18, the two limiting protrusions 7 enter the two limiting grooves 19 on the shell, the nut 9 is placed in the mounting groove 8 in advance, and then the fastening bolt 22 is fitted with a washer 23 and inserted through the fixing hole 21 and screwed into the threaded hole of the nut 9, so that the insert block 2 is completely fixed to the housing 17.

[0038] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0039] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An embedded hinge, characterized in that, The embedded hinge comprises a hinge shaft (1) and two embedded blocks (2), the outer side of the embedded block (2) is provided with a connecting block (3) extending forward near the front end, the front end surface of the connecting block (3) is provided with a plurality of lugs (4), the lugs (4) are provided with a left-right through hinge shaft hole (5), the lugs (4) on the two connecting blocks (3) are staggered, and the hinge shaft (1) passes through the hinge shaft hole (5) on each lug (4).

2. The flush hinge of claim 1, wherein The lugs (4) are arranged in multiple left-right intervals along the front end surface of the connecting block (3).

3. The flush hinge of claim 1, wherein The front end of the embedded block (2) is provided with a plug-in part (6), and the front end surface of the plug-in part (6) is located behind the hinge shaft (1).

4. The flush hinge of claim 1 wherein, The rear end of the embedded block (2) is provided with two left-right limiting lugs (7).

5. The flush hinge of claim 1, wherein The embedded block (2) is a long strip shape with gradually increasing width from the front end to the rear end.

6. The flush hinge of claim 1, wherein The front end surface of the embedded block (2) is provided with a bolt connection part for screwing a fixing bolt.

7. The flush hinge of claim 6 wherein, The inner side surface of the front end of the embedded block (2) is provided with a mounting groove (8), the mounting groove (8) is provided with a nut (9), the front end surface of the embedded block (2) is provided with a communication hole (10) communicating with the threaded hole, and the nut (9) and the communication hole (10) jointly form the bolt connection part.

8. The flush hinge of claim 6 wherein, The bolt connection part comprises a threaded hole arranged on the front end surface of the embedded block (2).

9. The flush hinge of claim 1 wherein, The outer side surface of the embedded block (2) is provided with an expansion lug (11), and the expansion lug (11) is provided with a pin hole (12).

10. The flush hinge according to any of claims 1 to 9, characterized in that, The embedded block (2) comprises a long strip plate (14) extending forward and backward, a plurality of transverse reinforcing plates (15) are arranged in front and back intervals on the inner side surface of the long strip plate (14), a longitudinal reinforcing plate (16) extending forward and backward is arranged on the inner side surface of the long strip plate (14), and the longitudinal reinforcing plate (16) is connected with the middle part of the transverse reinforcing plate (15).

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