Folding frame locking mechanism

Abstract

The present application discloses a folding frame locking mechanism, comprising a first plate body, a second plate body, and a third plate body which are hinged in sequence, wherein the surface of the first plate body protrudes toward the second plate body and the third plate body to form a sheet body, the surface of the sheet body is provided with a first window, the surface of the second plate body is provided with a second window for the sheet body to pass through, one side of the third plate body protrudes toward the second plate body to form a baffle, the surface of the baffle plate is provided with a lock tongue buckle and a third window, and further comprises a handle, the handle is rotatably connected to the third plate body through a pin shaft, one end of the handle protrudes with a lock tongue passing through the lock tongue buckle, the outer surface of the lock tongue is provided with a compression spring, one end of the compression spring abuts against the baffle, and the middle part of the handle and the same side of the lock tongue protrude to form a card body. The folding mechanism of the present invention can realize a self-locking function.

Description

Technical Field

[0001] The present application relates to a folding mechanism, and in particular to a folding frame locking mechanism. Background Art

[0002] Folding mechanisms can be used in a variety of mechanical devices, but sometimes they need to be able to achieve a self-locking function after folding. Summary of the invention

[0003] The object of the present invention is to provide a folding frame locking mechanism which can realize a self-locking function when folding.

[0004] To achieve the above object, the present invention provides the following technical solutions.

[0005] The embodiment of the present application discloses a folding frame locking mechanism, including a first plate body, a second plate body, and a third plate body hinged in sequence, wherein a surface of the first plate body protrudes toward the second plate body and the third plate body to form a plate body, a first window is opened on the surface of the plate body, a second window for the plate body to pass through is formed on the surface of the second plate body, a side of the third plate body protrudes toward the second plate body to form a baffle, a lock tongue buckle and a third window are formed on the surface of the baffle, and also includes a handle, the handle and the third plate body are rotatably connected by a pin shaft, a lock tongue protruding from one end of the handle passing through the lock tongue buckle, a compression spring is sleeved on the outside of the lock tongue, one end of the compression spring abuts against the baffle, a card body is protruded from the middle part of the handle on the same side as the lock tongue, and the first plate body, the second plate body, and the third plate body are sequentially attached after folding, and the card body sequentially protrudes from the first window and the third window.

[0006] Preferably, in the above-mentioned folding frame locking mechanism, a fourth plate body hinged to the third plate body is further included, and a mounting plate is formed on the back side of the fourth plate body.

[0007] More preferably, in the above-mentioned folding frame locking mechanism, the length of the second plate body is equal to the sum of the lengths of the third plate body and the fourth plate body.

[0008] Preferably, in the above-mentioned folding frame locking mechanism, side plates are respectively formed on both sides of the second plate body, and the first plate body and the second plate body, and the second plate body and the third plate body are respectively hinged at two ends of the side plates.

[0009] Compared with the prior art, the advantage of the present invention is that the folding mechanism can realize a self-locking function. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 Shown is a three-dimensional view of a folding frame locking mechanism in a specific embodiment of the present invention;

[0012] Figure 2 Shown is an expanded view of a folding frame locking mechanism in a specific embodiment of the present invention;

[0013] Figure 3 Shown is a three-dimensional view of the first plate body in a specific embodiment of the present invention;

[0014] Figure 4 Shown is a three-dimensional view of the second plate body in a specific embodiment of the present invention;

[0015] Figure 5 Shown is a three-dimensional view of the third plate in a specific embodiment of the present invention;

[0016] Figure 6 Shown is a three-dimensional view of a fourth plate body in a specific embodiment of the present invention;

[0017] Figure 7 Shown is a three-dimensional view of a handle in a specific embodiment of the present invention;

[0018] Figure 8 Shown is an installation diagram of a handle in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following will describe the technical solutions in the embodiments of the present invention in detail in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Combination Figure 1-8 As shown, the folding frame locking mechanism includes a first plate body 100, a second plate body 200, and a third plate body 300 which are hinged in sequence. The surface of the first plate body 100 protrudes toward the second plate body 200 and the third plate body 300 to form a sheet body 101, and the surface of the sheet body 101 is provided with a first window 102. The surface of the second plate body 200 is provided with a second window 201 for the sheet body 101 to pass through. One side of the third plate body 300 protrudes toward the second plate body 200 to form a baffle plate 301, and the surface of the baffle plate 301 is provided with a locking tongue buckle 302 and a third window 303. The handle 400 is rotatably connected to the third plate 300 via a pin shaft 401. A lock tongue 402 that passes through the lock tongue buckle 302 protrudes from one end of the handle 400. A compression spring 403 is sleeved on the outside of the lock tongue 402. One end of the compression spring 403 abuts against the baffle 301. A card body 404 is formed by protruding from the middle part of the handle 400 and the same side as the lock tongue 402. The first plate 100, the second plate 200, and the third plate 300 are folded and sequentially attached, and the card body 404 sequentially protrudes from the first window 102 and the third window 303.

[0023] In this technical solution, the three plates are hinged in sequence, folded together and fitted together, and the sheet on the first plate protrudes to the card body of the handle. Since the handle is restricted to one side of the third plate by a compression spring, a notch is provided on one side of the third plate for the handle to rotate. Due to the presence of the compression spring, when the plates fit together, the handle is first turned, the sheet is folded through the second window and placed next to the third window, and then the handle is released. Due to the action of the spring, the card body automatically passes through the first window and the third window, thereby realizing the locking of the folding mechanism. This is suitable for fixed racks of some bookshelves, newspapers, etc.

[0024] Furthermore, it also includes a fourth plate body 500 hinged to the third plate body 300 , and a mounting plate 501 is formed on the back side of the fourth plate body 500 .

[0025] In this technical solution, it is convenient to install the mechanism on other equipment structures.

[0026] Furthermore, the length of the second plate body 200 is equal to the sum of the lengths of the third plate body 300 and the fourth plate body 500 .

[0027] In this technical solution, this structure is preferably adopted, which is more beautiful after overlapping each other.

[0028] Furthermore, side panels 202 are formed on both sides of the second plate body 200 , and the first plate body 100 and the second plate body 200 , and the second plate body 200 and the third plate body 300 are hinged at two ends of the side panels 202 , respectively.

[0029] This technical solution ensures that the three panels can fit together after being folded, thus saving space.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A folding frame locking mechanism, characterized in that: The invention comprises a first plate body, a second plate body and a third plate body which are hinged in sequence, wherein a surface of the first plate body protrudes toward the second plate body and the third plate body to form a sheet body, a first window is opened on the surface of the sheet body, a second window for the sheet body to pass through is formed on the surface of the second plate body, a baffle is protruded toward the second plate body on one side of the third plate body, a lock tongue buckle and the third window are formed on the surface of the baffle plate, and a handle is also included, wherein the handle is rotatably connected to the third plate body through a pin shaft, a lock tongue that passes through the lock tongue buckle is protruded from one end of the handle, and the lock tongue A compression spring is sleeved on the outside of the tongue, one end of the compression spring is against the baffle, a card body is formed by protruding from the middle of the handle and the same side of the lock tongue, the first plate body, the second plate body, and the third plate body are folded and sequentially fitted together, and the card body sequentially protrudes from the first window and the third window, and also includes a fourth plate body hinged to the third plate body, a mounting plate is formed on the back of the fourth plate body, side plates are respectively protruded from both sides of the second plate body, and the first plate body and the second plate body, as well as the second plate body and the third plate body are respectively hinged at both ends of the side plates.

2. The folding frame locking mechanism according to claim 1, characterized in that: The length of the second plate body is equal to the sum of the lengths of the third plate body and the fourth plate body.

Images