Locking mechanism and light

Abstract

A locking mechanism provided between a housing (10) and a lid (20) of a product to lock the housing (10) and the lid (20), which are articulatedly connected to each other, wherein the locking mechanism comprises a first locking body (1), characterized in that it further comprises a second locking body (2), wherein one end of the first locking body (1) and one end of the second locking body (2) are connected to one side of the housing (10) or the lid (20), while the other end of the first locking body (1) and the other end of the second locking body (2) are detachably connected to the other side of the housing (10) or the lid (20).

Description

TECHNICAL FIELD

[0001] The present invention relates to the technical field of a locking mechanism and a lamp. STATE OF THE ART

[0002] Currently, locking mechanisms are widely used in various products such as boxes and luminaires. One side of the lid (e.g., a box lid, a back cover of a luminaire, etc.) is often hinged to a corresponding side of the housing (e.g., a box, a luminaire housing). A locking mechanism is provided between the other side of the lid and the other side of the housing. This locking mechanism serves to lock the lid after it has been rotated relative to the housing, allowing the item to be reliably accommodated in the internal cavity of the housing.

[0003] Existing locking mechanisms often only use a locking body for locking. The more common locking mechanism includes a U-shaped locking body. The U-shaped locking body is pivotally connected to one of the cover or the housing on both sides. The U-shaped locking body rotates and then snaps into place with the snap fastener on one of the cover or the housing. With such a locking mechanism, the locking connection between the cover and the housing can also be achieved, but the locking reliability needs to be further improved. At the same time, the U-shaped locking body often occurs along the rotation axis of the movement phenomenon during rotation or use, which leads to the fact that the fastening of the U-shaped locking body and the position of the snap fastener cannot be disassembled, resulting in inconvenient defects.In addition, the U-shaped locking body often protrudes from the outer surface of the housing and lid, making the product easily damaged in the event of an accidental drop. This locking mechanism also tends to detach from the snap-in mechanism, especially in lighting devices. This locking mechanism has failed drop tests and therefore requires further improvement. CONTENT OF THE PRESENT INVENTION

[0004] The first technical problem to be solved by the present invention is to provide a locking mechanism with good locking reliability in response to the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a lamp with the above locking mechanism so that the cover can be reliably locked to the housing.

[0006] To solve the first technical problem, the present invention uses the following technical solution: A locking mechanism provided between a housing (10) and a lid (20) of a product for locking the housing (10) and the lid (20) which are hinged to each other, the locking mechanism comprising a first locking body (1) and further comprising a second locking body (2), one end of the first locking body (1) and one end of the second locking body (2) being connected to one of the housing (10) or the lid (20), while the other end of the first locking body (1) and the other end of the second locking body (2) are removably connected to the other of the housing (10) or the lid (20).

[0007] Preferably, one end of the first locking body (1) is pivotally connected to the housing (10) or the cover (20) by means of a pin (3), and a limiting element (4) is provided on the part of the housing (10) or the cover (20) that is pivotally connected to the first locking body (1), wherein the limiting element (4) can prevent axial movement of the first locking body (1) along the pin (3).

[0008] Preferably, the first locking body (1) is an annular locking rod, wherein the other end of the annular locking rod can engage with a locking portion (201) on the cover (20) or the housing (10) after rotation. Such a first locking body has a reliable locking mechanism and is simple and cost-effective.

[0009] Preferably, recesses are provided on the outer surface of the housing (10) and the cover (20) corresponding to the annular locking rod, wherein the annular locking rod can fall into the recess (C) in the locked state, and wherein the recess (C) has a depth such that the annular locking rod arranged in the recess (C) is not higher than the outer surface of the housing (10) and the cover (20) at the corresponding part, thereby further improving the reliability after locking and prolonging the service life.

[0010] Preferably, a notch (202) is provided in the cover (20) or the housing (10) corresponding to the other end of the first locking body (1), wherein the notch (202) can be used for a finger to exert force on the other end of the first locking body (1), thereby making unlocking easier and less stressful.

[0011] Preferably, at least a part of the second lock body (2) is arranged in the locked state within the area enclosed by the first lock body (1) in order to improve the compactness of the overall structure

[0012] Preferably, the second locking body (2) is designed as a locking tab extending from the cover (20) toward the side of the housing (10), wherein the inner surface of the extended end of the locking tab is provided with an inwardly projecting locking tongue (21), and wherein the housing (10) is provided with a step (103) that snaps into the locking tongue (21). This construction allows the second locking body to be snapped into place simply and easily.

[0013] Taking into account the compactness of the overall structure, the outer surface of the housing (10) is provided with a recessed area (104) into which the locking tongue projects, the step (103) being located in the recessed area (104).

[0014] For easy assembly, shaft holes (105) are formed in the walls on both sides of the recessed portion (104), and one end of the first locking body (1) is pivotally connected to the housing by means of a pin (3) supported in the shaft hole (105).

[0015] To solve the second technical problem, the present invention uses the following technical solution: A lamp comprising a housing (10) capable of accommodating a battery, a cover (20) hingedly connected to the housing (10) for concealing the battery, and a locking mechanism provided between the housing (10) and the cover (20), the locking mechanism using a locking mechanism as above.

[0016] Compared with the prior art, in the present invention, a second locking body is added, so that in use, not only can the first locking body be used to lock the lid to the case, but also with the help of the second locking body, the locking between the lid and the case can be made tighter, so that the reliability of the locking between the two can be improved. In particular, the additional limiting member can prevent axial movement of the first locking body during use, which improves the reliability of the locking and also facilitates the smooth connection between the first locking body and the lid or the case. Second, the additional positioning groove ensures that the first lock body is received in the positioning groove without being exposed on the surface of the lid and the case.This prevents the first locking body from being accidentally opened by force, while also preventing damage if dropped. When such a locking mechanism is applied to a light fixture, the above effect is even more obvious. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a three-dimensional schematic representation of a structure of a first embodiment of the present invention Fig. Figure 2 shows a three-dimensional schematic representation of the structure of Fig. 1 in the rear view; Fig. Figure 3 shows a partially three-dimensional schematic representation in the direction indicated by arrow A after removal of the U-shaped bracket in Fig. 2; Fig. Figure 4 shows a three-dimensional schematic representation of the decomposition of Fig. 3; Fig. Figure 5 shows a three-dimensional schematic representation of the cover and the first locking body after rotation in Fig. 3; Fig. 6 shows a three-dimensional schematic representation of a second embodiment of the present invention; Fig. Figure 7 shows a partially schematic representation in the direction indicated by the arrow B in Fig. 6 indicated direction; Fig. Figure 8 shows a three-dimensional schematic representation of the decomposition of Fig. 7; Fig. Figure 9 shows a three-dimensional schematic representation of the cover and the first locking body after rotation in Fig. 7. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein like or similar designations indicate like or similar elements or elements with like or similar functions.

[0018] The locking mechanism in this embodiment can be applied to various products in which the lid is hinged to the housing, and it is connected between the housing and the lid of the product, preferably opposite the hinged part. To better understand the locking mechanism, the locking mechanism in this embodiment is implemented in a light fixture. Since the lights are constructed differently, two work lights are shown below as examples.

[0019] Embodiment 1: As in the Fig. 1 to 5, the work light comprises a U-shaped bracket 100, a work light body 200 arranged in the U-shaped bracket, the work light body 200 further comprising a housing 10 capable of accommodating a battery, a light-emitting body (not shown in the figures) mounted on the housing, a cover 20 pivotally connected to a lower end of the housing 10 to conceal the battery, and a locking mechanism 30. Both sides of the housing 10 are pivotally connected to the U-shaped bracket 100 via shortwaves, so that the work light body 200 can both stand on a mounting surface via the U-shaped bracket 100 and adjust the angle of the work light body 200 by rotating it relative to the U-shaped bracket 100 to change the light emission direction of the light-emitting body.to meet the need for irradiation in different directions. To facilitate processing and assembly, the housing 10 is assembled from the front housing 101 and the rear housing 102 using screws. A battery compartment 40 is mounted in the front housing 101 or the rear housing 102 (the front housing 101 is shown in the figures), which serves to accommodate the battery. Of course, it is also possible to insert the battery directly into the interior space enclosed by the front and rear housings. The cover 20 is sandwiched between one side of the cover 20 and a corresponding side of the housing 10 (the figure shows the front of the front housing, see , Fig. 1) by means of a rotary joint 50, ie the cover 20 can be rotated relative to the housing 10 in order to expose the battery compartment 40 (see Fig. 5) to facilitate the insertion or removal of the battery. The locking mechanism 30 is located between the other side of the cover 20 and the other side of the housing 10 (the figure shows the back of the rear housing, see Fig. 2) and serves to lock the cover 20 relative to the housing 10 after the cover 20 has been rotated, so that the battery that supplies the light-emitting body can be reliably accommodated in the battery compartment 40 of the housing 10.

[0020] The locking mechanism 30 comprises a first locking body 1 and a second locking body 2. The first locking body 1 and the second locking body 2 can be arranged parallel to each other, but in the figure, the first locking body 1 and the second locking body 2 are shown in the form of a combined arrangement for reasons of compactness of the design. The first locking body 1 is preferably an annular locking rod, which can be a closed annular structure, but is preferably an annular structure with an opening, and is designed in the figure as a U-shape (which can also be a C-shape).

[0021] In connection with the specific structure of this first locking body 1, one end of this first locking body 1 is the end of both sides of the open end of the annular locking rod, and one end of this first locking body 1 is pivotally connected to the rear housing 102 by means of a pin 3; the other end of the first locking body 1 after rotation (ie, the closed end of the annular locking rod) is connected to the engaging portion 201 on the lid 20 in a snap-in connection, that is, at this time, the first locking body 1 after rotation is held in a locked state by the snap-in connection with the lid 20.

[0022] In the locked state, at least a part of the second locking body 2 is arranged in the area enclosed by the first locking body 1 to achieve an arrangement in which the first locking body 1 and the second locking body 2 are combined. In the figure, the second locking body 2 is formed as a locking tab extending from a side edge of the cover 20 toward the housing side (in the figure, the rear of the housing), which is substantially perpendicular to the main plane of the cover 20 and protrudes from the side surface of the cover 20. The part of the locking tab adjacent to the cover 20 is the above-mentioned engaging portion 201. Of course, the engaging portion may also be an engaging slot provided at the junction between the locking tab and the cover 20.The locking tab is provided on the inside of the extended end of the locking tab with an inwardly projecting locking tongue 21 (see . Fig. 5), and a step 103 is provided on the rear housing 102 for engaging the locking tongue. To prevent the locking tab from protruding excessively from the outer surface of the rear housing 102, a recessed area 104 is provided on the outer surface of the rear housing 102, into which the locking tab protrudes. The step 103 is arranged in the recessed area 104 (see Fig. 3, Fig. 4 and Fig. 5), and the extended end of the locking tab is designed to curve outward into the curved tab 22. In this way, on the one hand, the use of the recessed portion 104 improves the compactness of the overall structure, and on the other hand, with the help of the recessed portion 104 and the curved tab 22, it is conducive to the user releasing the extended end of the locking tab with their finger. And through the natural elasticity of the extended locking tab, the locking tongue 21 on the locking tab can be quickly released from the step 103 to achieve the purpose of quickly opening the lid 20.

[0023] To facilitate the assembly of the first locking body 1, in this embodiment, corresponding shaft holes 105 are provided on the two side walls of the above recessed portion 104, and one end of the first locking body 1 is pivotally connected to the rear housing 102 via a pin 3 (the pin is bent from an end portion of the first locking body 1 in the figure; the pin may also be constructed in a split structure with the first locking body, wherein the pin is screwed through a small hole at one end of the first locking body 1) supported in the shaft holes. To prevent the first locking body 1 from moving in the axial direction along the pin 3 during use, a limiting member 4 is provided on a part of the rear housing 102 that is pivotally connected to the first locking body 1. There are two such limiting members 4 in the figure.One end of each of the limiting members 4 is fixed to the inner wall of the front housing 101, and the other end of each of the limiting members 4 extends toward the side of the rear housing 102 and passes through the corresponding window 106 on the rear housing 102, and then is located on both sides of the annular locking rod, becoming a stopper portion. In the figure, the other end of each limiting member 4 is arranged adjacent to the corresponding shaft hole 105 to reliably prevent the first locking body 1 from moving axially along the pin 3, to reliably limit the annular locking rod, and to ensure a smooth engagement between the first locking body 1 and the engagement portion 201.

[0024] In order to prevent the first locking body 1 from protruding excessively from the outer surface of the rear housing after opening, a limiting slot 107 corresponding to the annular locking rod is provided on the outer surface of the rear housing 102, into which the annular locking rod can fall into the limiting slot 107 in the unlocked state.

[0025] In order to facilitate the application of force to the other end of the first locking body 1 in the locking state, a notch 202 is provided on the lid, and the notch 202 can be used for a finger to apply force to the other end of the first locking body 1, so that the unlocking of the first locking body 1 becomes easier and more convenient.

[0026] In use, the first locking body 1 is first pressed with a finger on the other end of the first locking body 1, so that the first locking body 1 is pivoted about the axis of the pin 3 to the side of the housing 10; then a finger is pressed on the bent tab 22 of the second locking body 2, so that the locking tongue 21 of the second locking body 2 is released from the step 103, and then the cover 20 is turned over, that is, it is possible to rotate the cover with respect to the housing, as in Fig. 5. If locking is required, it must be done in the opposite direction. It is evident that using two locking bodies to lock the lid provides better locking reliability.

[0027] Embodiment 2: As in the Fig. 6 to 9, the work light includes a handle portion 300 and an illumination portion 400 pivotally connected to each other, the handle portion 300 including a housing 10, a lid 20 pivotally connected to the lower end of the housing 10, and a locking mechanism 30; similarly, the housing 10 is assembled from the front housing 101 and the rear housing 102 by means of bolts (of course, the housing is not limited to this structure, but may also have a cylindrical structure and other existing structural structures); the housing 10 is further provided with a battery compartment 40, and the lid 20 is pivotally connected to the housing 10 via a pivot 50 and can be rotated with respect to the housing 10 to cover the battery compartment 40 and reliably position the batteries in the battery compartment 40.The lighting section 400 may adopt existing technologies, and its joint structure with the handle section 300 as well as the joint structure between the cover 20 and the housing 10 may adopt existing technologies, which are not further explained here.

[0028] The present embodiment differs from the above embodiments in that the housing 10 and the cover 20 are provided with a recess C corresponding to the annular locking rod in the locking state, the recess C being pivotally connected to the limiting slot 107 on the rear housing in the first embodiment; In the locking state, the annular locking rod falls into the recess C, and the recess C has a depth such that the annular locking rod is not higher than the outer surface of the corresponding parts of the rear housing 10 and the cover 20.In this way, hiding the annular locking rod in the recess C in the locked state can prevent it from being opened by accidental force, and can also avoid damage if it is dropped, thereby further improving the reliability and safety of use after locking and also prolonging the service life.

[0029] Furthermore, in this embodiment, the limiting element 4 is embedded in a flat U-shaped structure and is attached directly to the rear housing with two bolts (see Fig. 8), and the two ends of this U-shaped structure become the above knock-off portions, each located on the outside of the corresponding shaft holes 105, which can also conveniently serve the purpose of preventing the axial movement of the first locking body 1 along the axis of the pin 3.

[0030] Of course, in addition to the above embodiment, the mounting positions of the first locking body 1 and the second locking body as described above can also be reversed, that is, one end of the first locking body is pivotally connected to the cover, the other end of this first locking body is snap-connected to the housing, one end of the second locking body is connected to the housing, and the other end of the second locking body is snap-connected to a step on the cover. Or, one end of the first locking body and one end of the second locking body are simultaneously connected to the cover or the housing, and the other end of the first locking body and the other end of the second locking body are simultaneously locked to the housing or the cover.Or the first locking body and the second locking body are connected to each other by an inner and outer arrangement. Or the first locking body adopts an L-shaped structure. All of these solutions fall within the scope of the present invention.

Claims

[1] Locking mechanism provided between a housing (10) and a lid (20) of a product to lock the housing (10) and the lid (20) which are hinged together, the locking mechanism comprising a first locking body (1), characterized by that it further comprises a second locking body (2), wherein one end of the first locking body (1) and one end of the second locking body (2) are connected to one of the housing (10) or the cover (20), while the other end of the first locking body (1) and the other end of the second locking body (2) are removably connected to the other of the housing (10) or the cover (20). [2] Locking mechanism according to claim 1, characterized bythat one end of the first locking body (1) is pivotally connected to the housing (10) or the cover (20) by means of a pin (3), and wherein a limiting element (4) is provided on the part of the housing (10) or the cover (20) which is pivotally connected to the first locking body (1), wherein the limiting element (4) can prevent an axial movement of the first locking body (1) along the pin (3). [3] Locking mechanism according to claim 2, characterized by that the first locking body (1) is an annular locking rod, wherein the other end of the annular locking rod can engage with a locking portion (201) on the cover (20) or on the housing (10) after rotation. [4] Locking mechanism according to claim 3, characterized bythat recesses (C) corresponding to the annular locking rod are provided on the outer surface of the housing (10) and the cover (20), wherein the annular locking rod can fall into the recess (C) in the locked state, and wherein the recess (C) has a depth such that the annular locking rod arranged in the recess (C) is not higher than the outer surface of the housing (10) and the cover (20) at the corresponding part. [5] Locking mechanism according to claim 3, characterized by that a notch (202) is provided in the cover (20) or the housing (10) corresponding to the other end of the first locking body (1), wherein the notch (202) can be used for a finger to exert force on the other end of the first locking body (1). [6] Locking mechanism according to claim 1, characterized bythat at least a part of the second lock body (2) is arranged in the locked state within the area enclosed by the first lock body (1). [7] Locking mechanism according to claim 6, characterized by that the second locking body (2) is designed as a locking tab which extends from the cover (20) towards the side of the housing (10), wherein the inner surface of the extended end of the locking tab is provided with an inwardly projecting locking tongue (21), and wherein the housing (10) is provided with a step (103) which snaps into the locking tongue (21). [8] Locking mechanism according to claim 7, characterized by that the outer surface of the housing (10) is provided with a recessed area (104) into which the locking tongue projects, the step (103) being located in the recessed area (104). [9] Locking mechanism according to claim 8, characterized bythat shaft holes (105) are formed in the walls on both sides of the recessed portion (104), one end of the first locking body (1) being pivotally connected to the housing by means of a pin (3) supported in the shaft hole (105). [10] A lamp comprising a housing (10) capable of accommodating a battery, a cover (20) hinged to the housing (10) for concealing the battery, and a locking mechanism provided between the housing (10) and the cover (20), characterized by that the locking mechanism uses a locking mechanism according to any one of claims 1-9.

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