Linkage lock for rail transit vehicle

Abstract

The linkage lock for the rail transit vehicle comprises a middle connecting body and shells arranged on the front side and the rear side of the middle connecting body, the two shells are each internally provided with a lifting lock rod, the end face of one side of each shell is provided with a lock hole for the corresponding lock rod to stretch out, and the end face of the other side of each shell is provided with a lock hole for the corresponding lock rod to stretch out. Lock cylinders are arranged on the outer sides of the two shells, the two lock cylinders are in synchronous transmission connection through a connecting assembly, arc-shaped grooves are formed in the front side and the rear side of the middle connecting body, and the connecting assembly penetrates through the arc-shaped grooves to be connected with the two lock cylinders. According to the linkage lock, the lock cylinders on the two sides are connected through the connecting assembly, locking or unlocking of the linkage lock can be achieved by rotating the lock cylinder on any side, operation can be conducted on the two sides of a door body, the problem of mistaken locking or back locking is avoided, and then the practicability of the linkage lock is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit vehicle accessories, in particular to a linkage lock for rail transit vehicles. Background Art

[0002] In rail transit vehicles such as high-speed trains, motor trains, and subways, the partition doors between carriages or the door locks on the cab doors usually use cam locks, such as the cam locks disclosed in patent CN211229876U. Such products are all single-action and can only achieve the effect of locking or unlocking on one side. After one side is locked, it cannot be opened on the other side. Once the lock is locked by mistake or reversely locked, it is difficult to open it in a short time. In an emergency, it can only be forcibly broken, which brings certain inconveniences to actual use. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the utility model discloses a linkage lock for rail transit vehicles, including an intermediate connecting body and a shell arranged on the front and rear sides of the intermediate connecting body, a liftable locking rod is provided in each of the two shells, a lock hole for allowing the locking rod to extend is provided on the end surface of one side of the two shells, a lock core is provided on the outer side of the two shells, the two lock cores are synchronously transmitted and connected by a connecting assembly, an arc groove is provided on the front and rear sides of the intermediate connecting body, and the connecting assembly is connected to the two lock cores through the arc groove.

[0004] Furthermore, a connecting rod is provided at the bottom of the locking rod, and a through groove is provided in the transverse direction along the upper edge of the connecting rod.

[0005] Furthermore, the connecting component includes a swing arm, a slider and a connecting shaft. One end of the swing arm is connected to the lock core, and the front and rear sides of the other end are respectively connected to the slider and the connecting shaft. The slider is slidably set in the through groove, and the connecting shaft passes through the arc groove and is connected to the swing arm of another connecting component.

[0006] Furthermore, the arc-shaped groove is a semicircular groove, and two ends of the semicircular groove correspond to two extreme positions of the locking rod respectively.

[0007] Furthermore, the intermediate connector includes two symmetrical and spaced-apart flat plates, and one side of the two flat plates is connected by a connecting plate.

[0008] Furthermore, a connecting block is provided on one side of the flat plate, a first connecting hole is provided on the connecting block, a second connecting hole corresponding to the position of the first connecting hole is provided on one side of the shell, and the first connecting hole and the second connecting hole are connected by bolts.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] In the interlocking lock of the present utility model, the lock cores on both sides are connected by a connecting component. Rotating the lock core on either side can lock or unlock the interlocking lock, and it can be operated on both sides of the door body, without the problems of accidental locking or reverse locking, thereby improving the practicability of the interlocking lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is an exploded view of the structure of the present utility model;

[0014] Figure 3 is Figure 2 an enlarged view of the partial structure at A in

[0015] Figure 4 a schematic diagram of the use state of the present utility model.

[0016] Reference numerals:

[0017] 1 - intermediate connecting body, 11 - flat plate, 12 - connecting plate, 13 - connecting block, 14 - first connecting hole, 15 - arc-shaped groove, 2 - housing, 21 - second connecting hole, 22 - lock hole, 3 - lock rod, 31 - connecting rod, 32 - through groove, 4 - lock core, 5 - connecting component, 51 - swing arm, 52 - slider, 53 - connecting shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments.

[0019] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0020] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature.

[0021] In the description of the embodiments, unless otherwise clearly specified and defined, terms such as "arranged" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or connected through an intermediate medium, or there may also be a connection inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] As Figure 1-2 shown, the interlocking lock for rail transit vehicles in this embodiment includes an intermediate connecting body 1 and housings 2 arranged on the front and rear sides of the intermediate connecting body 1. The intermediate connecting body 1 includes two symmetrically and spaced flat plates 11. One side of the two flat plates 11 is connected by a connecting plate 12. A connecting block 13 is provided on one side of the flat plate 11, and a first connecting hole 14 is provided on the connecting block 13. A second connecting hole 21 corresponding to the position of the first connecting hole 14 is provided on one side of the housing 2. The first connecting hole 14 and the second connecting hole 21 are connected by a bolt, thereby realizing the connection between the intermediate connecting body 1 and the housing 2.

[0023] The gap between the two flat plates 11 is used to clamp the door panel, so that the two housings 2 are respectively located on both sides of the door panel, facilitating operations on both sides of the door panel.

[0024] Liftable lock rods 3 are provided in both housings 2. Lock holes 22 for the lock rods 3 to extend out are provided on the end faces of one side of the two housings 2. Lock cores 4 are provided on the outer sides of the two housings 2. The two lock cores 4 are synchronously driven and connected by a connecting component 5. Arc-shaped grooves 15 are provided on the flat plates 11 on the front and rear sides of the intermediate connecting body 1. The connecting component 5 passes through the arc-shaped grooves 15 and is connected to the two lock cores 4.

[0025] The arc-shaped groove 15 is a semi-circular groove, and the two ends of the semi-circular groove respectively correspond to the two extreme positions of the lock rod 3, namely: the position after locking and the position after unlocking.

[0026] A connecting rod 31 is provided at the bottom of the lock rod 3, and a through groove 32 is provided transversely on the connecting rod 31.

[0027] As Figure 3As shown, the connecting component 5 includes a swing arm 51, a slider 52 and a connecting shaft 53. One end of the swing arm 51 is connected to the lock core 4, and the front and rear sides of the other end are respectively connected to the slider 52 and the connecting shaft 53. The slider 52 is slidably arranged in the through groove 32. The connecting shaft 53 passes through the arc groove 15 and is connected to the swing arm 51 of another connecting component 5, thereby realizing the synchronous connection of the lock cores 4 on both sides.

[0028] As Figure 4 shown, when the key is used to rotate the lock core 4 on either side, the lock core 4 drives the swing arm 51 to perform a 180° flip, causing the connecting shaft 53 to slide along the arc groove 15 and simultaneously causing the slider 52 to slide along the through groove 32, thereby driving the lock rod 3 to rise or fall, realizing the locking or unlocking of the interlocking lock; this interlocking lock can be operated on both sides of the door body, and there will be no problem of mislocking or reverse locking, thereby improving the practicality of the interlocking lock.

[0029] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it; when the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

Claims

1. A linkage lock for rail transit vehicles, characterized in that: It includes an intermediate connecting body and shells arranged on the front and rear sides of the intermediate connecting body, wherein a liftable locking rod is provided in each of the two shells, and a lock hole for the locking rod to extend is provided on the end face of one side of the two shells, and a lock core is provided on the outer side of the two shells. The two lock cores are synchronously connected through a connecting component, and arc grooves are provided on the front and rear sides of the intermediate connecting body, and the connecting component is connected to the two lock cores through the arc groove.

2. The rail transit vehicle interlock according to claim 1, characterized in that: A connecting rod is provided at the bottom of the locking rod, and a through groove is provided transversely along the upper edge of the connecting rod.

3. The interlocking lock for rail transit vehicles according to claim 2, characterized in that: The connecting component includes a swing arm, a slider and a connecting shaft. One end of the swing arm is connected to the lock core, and the front and rear sides of the other end are respectively connected to the slider and the connecting shaft. The slider is slidably arranged in the through groove, and the connecting shaft is connected to the swing arm of another connecting component after passing through the arc groove.

4. The rail transit vehicle interlock according to claim 1, characterized in that: The arc-shaped groove is a semicircular groove, and two ends of the semicircular groove correspond to two extreme positions of the locking rod respectively.

5. The interlocking lock for rail transit vehicles according to claim 1, characterized in that: The intermediate connecting body comprises two symmetrical and spaced-apart flat plates, one side of the two flat plates being connected by a connecting plate.

6. The interlocking lock for rail transit vehicles according to claim 5, characterized in that: A connecting block is provided on one side of the flat plate, a first connecting hole is provided on the connecting block, a second connecting hole corresponding to the position of the first connecting hole is provided on one side of the shell, and the first connecting hole is connected to the second connecting hole by bolts.

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