Rotary self-locking hinge and combined shield comprising same

Abstract

The rotary self-locking hinge comprises a first base, a plug pin assembly, a second base and a third base, the second base and the third base are rotationally connected, the first base and the third base are fixed to two adjacent parts respectively, the second base can turn over between the two parts, and the third base can turn over between the two parts. The plug pin assembly is connected with the first base, the plug pin assembly reciprocates between a locking position and an unlocking position, and when the plug pin assembly is located at the locking position, the plug pin assembly can be pressed on the upper surfaces of the first base and the second base at the same time, so that rotation of the second base is restrained. According to the rotary self-locking hinge, the second base and the first base are locked through the plug pin assembly, in the locking state, the rotary self-locking hinge has the same function as a common hinge, connection of the two parts can be achieved, when the plug pin assembly is unlocked, the second base can be separated from the first base, and the rotary self-locking hinge is convenient to use. Therefore, the adjacent parts can be quickly dismounted.

Description

TECHNICAL FIELD

[0001] The utility model relates to police equipment technical field especially relates to a kind of rotary self-locking hinge and the combination shield comprising it. BACKGROUND

[0002] Hinge is generally used to rotate the connection of two components, such as the connection of door and door frame, the connection of folding shield, the folding shield connected by hinge is fixed by screw at both ends of hinge on two shield units during installation, and can only be opened or folded by rotating, cannot quickly remove adjacent shield units, is not suitable for multifunctional connection requirements, resulting in small application range, and when used for array arrangement combination shield, cannot realize effective storage of combination shield. SUMMARY

[0003] In order to solve the technical problem that the hinge of prior art can only realize the rotation and folding of shield, cannot remove adjacent shield units, and cannot be used for the storage of array arrangement combination shield, the utility model provides a rotary self-locking hinge and combination shield comprising it to solve the above problems.

[0004] The utility model provides a kind of rotary self-locking hinge, for the connection of two adjacent components, including first base, bolt subassembly and rotationally connected second base and third base, the first base and third base are fixed on two adjacent components respectively, second base can be turned between two components, the bolt subassembly is connected with first base, bolt subassembly reciprocates between locking position and unlocking position, when bolt subassembly is in locking position, bolt subassembly can be pressed on the upper surface of first base and second base simultaneously, to inhibit the rotation of second base.

[0005] In the optional embodiment of the utility model, the second base has a matching hole accommodating the first base, when the second base is located on the surface of the component where the first base is located, the first base is in the matching hole.

[0006] In the optional embodiment of the utility model, the bolt subassembly includes movable bolt and return spring, the movable bolt is slidingly matched with the first base, and the two ends of the return spring are respectively abutted with the movable bolt and the first base, in free state, the movable bolt is in locking position under the action of the return spring.

[0007] In the optional embodiment of the utility model, the first base has a trapezoidal sliding slot matched with the movable bolt.

[0008] In the optional embodiment of the utility model, a limiting groove is arranged below the trapezoidal sliding slot, a limiting column is connected to the movable bolt, the limiting column extends into the limiting groove, and when the bolt subassembly is in locking state, the limiting column is in contact with the end of the limiting groove.

[0009] In the optional embodiment of the utility model, the second base and the third base are both semicircular structure, when the second base is locked by the bolt assembly, the second base and the third base form a whole circle.

[0010] In the optional embodiment of the utility model, the second base and the third base are both semicircular structure, when the second base is locked by the bolt assembly, the second base and the third base form a whole circle.

[0011] The utility model also proposes a combined shield, including two or more than two shield units, adjacent two shield units are connected with the above-mentioned rotating self-locking hinge, the first base and the third base are fixed on two adjacent shield units respectively, and the connecting place of adjacent two shield units is provided with a pressing plate, the pressing plate is connected with one of the shield units.

[0012] In the optional embodiment of the utility model, the pressing plate is provided with two, and the two pressing plates are located at the two sides of one of the shield units, and the other shield unit is inserted between the two pressing plates.

[0013] In the optional embodiment of the utility model, the shield unit is arranged in array.

[0014] The utility model has the advantages of:

[0015] (1) the rotating self-locking hinge of the utility model utilizes bolt assembly to lock the second base and the first base, under the locked state, the rotating self-locking hinge and ordinary hinge have the same effect, can realize the connection of two components, when the bolt assembly is unlocked, the second base can be separated from the first base, thereby realizing the quick removal of adjacent components.

[0016] (2) the rotating self-locking hinge of the utility model can be used as ordinary hinge for the rotary connection of two components, and can also be used for the direct splicing of two components, the folding mode is diversified, and the application range is wider.

[0017] (3) the combined shield of the utility model can be extended in the length and width direction at will, and is convenient and fast to store. DRAWINGS

[0018] The utility model is further illustrated below in connection with the drawings and examples.

[0019] Figure 1 It is the front view of the specific embodiment of the combined shield when the rotating self-locking hinge of the utility model is locked,

[0020] Figure 2 It is Figure 1Sectional view along axis AA;

[0021] Figure 3 yes Figure 1 BB-direction sectional view;

[0022] Figure 4 yes Figure 1 CC-direction sectional view;

[0023] Figure 5 This is a schematic diagram of the interaction between the rotating self-locking hinge and the shield unit after the hinge is unlocked in this utility model;

[0024] Figure 6 This is a schematic diagram showing the interaction between the rotating self-locking hinge and the shield unit when locked in this utility model.

[0025] In the figure, 1 is the first base, 2 is the pin assembly, 201 is the movable pin, 202 is the return spring, 3 is the second base, 301 is the mating hole, 4 is the third base, 5 is the trapezoidal slide, 6 is the limiting groove, 7 is the limiting post, 8 is the rotating self-locking hinge, 9 is the shield unit, 901 is the shield plate, 902 is the handrail, 10 is the pressure plate, and 11 is the magnetic buckle. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these 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.

[0027] Example 1

[0028] like Figures 1-3 As shown, a rotary self-locking hinge is used to connect two adjacent components. For ease of description, the two adjacent components are named the first component and the second component, respectively.

[0029] The rotary self-locking hinge 8 includes a first base 1, a pin assembly 2, and a second base 3 and a third base 4 rotatably connected. The first base 1 and the third base 4 are respectively fixed to a first component and a second component. Assuming the first base 1 is fixed to the first component and the third base 4 is fixed to the second component, the second base 3 is movable and can flip between the first and second components. The pin assembly 2 is connected to the first base 1 and reciprocates between a locked position and an unlocked position. When the pin assembly 2 is in the locked position, it simultaneously presses against the upper surfaces of the first base 1 and the second base 3, thereby inhibiting the rotation of the second base 3. At this time, the second base 3 and the first base 1 are jointly fixed to the first component. When the pin assembly 2 is in the unlocked position, the second base 3 is unlocked and can be freely flipped.Figure 5 As shown, the second base 3 is flipped to the side of the third base 4 and separated from the first base 1, and in the preferred embodiment, the second base 3 and the third base 4 are both provided with magnetic buckles 11, so that when the third base 4 is flipped to the side of the second base 3, the second base 3 can be adsorbed and attached to the third base 4. Figure 6 As shown.

[0030] The utility model discloses through simple improvement to traditional hinge, make the rotating self-locking hinge 8 can have the effect of hinge, and also can quickly separate first component and second component under the condition that the connecting piece is not removed, and the folding mode of first component and second component is no longer single, can turn over and fold first component and second component, also can separate first component and second component by adjusting the bolt assembly 2 and unlocking second base 3.

[0031] Bolt assembly 2:

[0032] The bolt assembly 2 includes a movable bolt 201 and a return spring 202, the movable bolt 201 is in sliding fit with the first base 1, and the two ends of the return spring 202 abut the movable bolt 201 and the first base 1 respectively, in the free state, the movable bolt 201 is in the locking position under the action of the return spring 202. Figure 2 As shown, the movable bolt 201 is extended out of the first base 1 under the action of the return spring 202, at this time, the extended part of the movable bolt 201 presses the second base 3, when unlocking is needed, the movable bolt 201 is extruded to the direction of the return spring 202, so that the movable bolt 201 is completely located above the first base 1.

[0033] The sliding fit of the movable bolt 201 and the first base 1 can be guided by a groove structure, in the embodiment, a trapezoidal sliding groove 5 matched with the movable bolt 201 is arranged on the upper surface of the first base 1, as shown. Figure 4 The lower part of the trapezoidal sliding groove 5 is smaller than the upper part, so that the movable bolt 201 is clamped in the trapezoidal sliding groove 5.

[0034] In order to avoid that the movable bolt 201 slides excessively and separates from the trapezoidal sliding groove 5, a limiting structure can be arranged at the end of the trapezoidal sliding groove 5, in the preferred embodiment of the utility model, the limiting is carried out by the following structure: a limiting groove 6 is arranged below the trapezoidal sliding groove 5, a limiting column 7 is connected to the movable bolt 201, the limiting column 7 extends into the limiting groove 6, when the bolt assembly 2 is in the locking state, the limiting column 7 contacts the end of the limiting groove 6. Figure 4 As shown, the limiting column 7 can be a screw locked on the movable bolt 201, and the movable bolt 201 can be slid out of the trapezoidal sliding groove 5 by removing the screw, which is convenient for installation.

[0035] The positional relationship between the second base 3 and the first base 1 is not particularly required, as long as the first base 1 and the second base 3 can be jointly pressed by the movable bolt 201.

[0036] Embodiment two

[0037] On the basis of the above embodiment, in order to make the appearance of the rotating self-locking hinge 8 more beautiful, as shown in the embodiment, a matching hole 301 accommodating the first base 1 is arranged on the second base 3, and when the second base 3 is located on the surface of the part where the first base 1 is located, the first base 1 is in the matching hole 301. Figure 5

[0038] In further design, the second base 3 and the third base 4 are both semicircular structures, and when the second base 3 is locked by the bolt assembly 2, the second base 3 and the third base 4 form a complete circle. Among them, the appearance of the second base 3 is a semicircular structure, and when the second base 3 is locked by the bolt assembly 2, the first base 1 fills the gap in the middle of the second base 3, and the three bases form a complete solid circle.

[0039] Embodiment three

[0040] A combined shield includes two or more shield units 9, and the rotating self-locking hinge 8 described above is connected between adjacent two shield units 9. The first base 1 and the third base 4 are respectively fixed on two adjacent shield units 9, and the connecting part of the adjacent two shield units 9 is provided with a pressing plate 10 connected with one of the shield units 9. The shield unit 9 includes a shield plate 901 and a handrail 902 mounted on the shield plate 901.

[0041] The combined shield described in the embodiment connects adjacent two shield units 9 through the rotating self-locking hinge 8, and then suppresses the rotation of the two shield units 9 through the pressing plate 10. When the combined shield needs to be stored, the bolt assembly 2 is only needed to be unlocked, and the second base 3 is turned over to separate the adjacent shield units 9.

[0042] Since the adjacent shield units 9 can be disassembled and stored, the plurality of shield units 9 in the combined shield can not only be arranged and combined in a straight line, but also can be arrayed and combined in a matrix form.

[0043] The pressing plate 10 can be arranged on only one side of the shield plate 901. In the embodiment, the pressing plate 10 is arranged on both sides of the shield plate 901, and the other shield unit 9 connected with the shield plate 901 is inserted between the two pressing plates 10 (as shown in the figure). Figure 3

[0044] ​​In the description of the utility model, it is understood that the terms "first", "second" and the like are only used for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two.

[0045] In the present specification, the illustrative expressions of the terms do not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments in a suitable manner.

[0046] Based on the above ideal embodiments according to the utility model, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A rotary self-locking hinge for connecting two adjacent components, characterized in that: It includes a first base (1), a pin assembly (2), and a second base (3) and a third base (4) rotatably connected. The first base (1) and the third base (4) are respectively fixed on two adjacent parts. The second base (3) can flip between the two parts. The pin assembly (2) is connected to the first base (1). The pin assembly (2) reciprocates between the locked position and the unlocked position. When the pin assembly (2) is in the locked position, the pin assembly (2) can press on the upper surfaces of the first base (1) and the second base (3) at the same time, thereby inhibiting the rotation of the second base (3).

2. The rotary self-locking hinge according to claim 1, characterized in that: The second base (3) has a mating hole (301) for accommodating the first base (1). When the second base (3) is located on the surface of the component where the first base (1) is located, the first base (1) is located in the mating hole (301).

3. The rotary self-locking hinge according to claim 1, characterized in that: The pin assembly (2) includes a movable pin (201) and a return spring (202). The movable pin (201) is slidably engaged with the first base (1). The two ends of the return spring (202) abut against the movable pin (201) and the first base (1) respectively. In the free state, the movable pin (201) is in the locked position under the action of the return spring (202).

4. The rotary self-locking hinge according to claim 3, characterized in that: The first base (1) has a trapezoidal groove (5) that engages with the movable pin (201).

5. The rotary self-locking hinge according to claim 4, characterized in that: The trapezoidal slide (5) is provided with a limiting groove (6) below it. A limiting post (7) is connected to the movable pin (201). The limiting post (7) extends into the limiting groove (6). When the pin assembly (2) is in the locked state, the limiting post (7) contacts the end of the limiting groove (6).

6. The rotary self-locking hinge according to claim 4, characterized in that: The second base (3) and the third base (4) are both semi-circular structures. When the second base (3) is locked by the pin assembly (2), the second base (3) and the third base (4) form a complete circle.

7. The rotary self-locking hinge according to claim 4, characterized in that: Both the second base (3) and the third base (4) are provided with magnetic snap fasteners (11). When the third base (4) is flipped to the side where the second base (3) is located, the second base (3) can adhere to the third base (4).

8. A composite shield, characterized in that: It includes two or more shield units (9), and a rotary self-locking hinge as described in any one of claims 1-7 is connected between two adjacent shield units (9). The first base (1) and the third base (4) are respectively fixed on two adjacent shield units (9), and a pressure plate (10) is provided at the connection between two adjacent shield units (9). The pressure plate (10) is connected to one of the shield units (9).

9. The combined shield according to claim 8, characterized in that: There are two pressure plates (10), with the two pressure plates (10) located on both sides of one of the shield units (9), and the other shield unit (9) inserted between the two pressure plates (10).

10. The combined shield according to claim 8, characterized in that: Multiple shield units (9) are arranged in an array.

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