Bilateral telescopic connecting rod locking mechanism

Abstract

The utility model discloses a bilateral telescopic connecting rod locking mechanism, which relates to the technical field of automobile seats and comprises a body support, a reset spring and locking rods arranged on two sides of the reset spring are arranged in the body support, a turntable part is connected to the middle of the body support and connected with a driving wire and a moving connecting rod, and the moving connecting rod is connected with a connecting rod. The other end of the moving connecting rod is connected with the locking rod; according to the utility model, the reset spring is arranged, two-side simultaneous telescoping can be realized, the self-locking function is realized, the product is more stable, the motion connecting rod and the locking rod are in the same direction in a locking state, when the locking rod is pushed from the outer side, the locking rod is limited by the motion connecting rod and cannot contract, the locking rod is only contracted and unlocked when the driving wire is pulled, and mistaken unlocking caused by external environment interference is not easy to occur.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seats, in particular to a double-side telescopic connecting rod locking mechanism. Background Art

[0002] The existing locking structure for the middle armrest of the car seat uses a brake wire to directly pull the locking rod, which has no self-locking. When the locking rod is pushed directly from the outside, the locking rod can be retracted to achieve unlocking. In this locking state without self-locking, the locking rod will be unlocked when it is subjected to forces other than the switch mechanism, resulting in no unlocking and unreliable locking performance.

[0003] Therefore, it is necessary to design a double-sided telescopic connecting rod locking mechanism to improve the above-mentioned problems. Utility Model Content

[0004] In view of the above problems in the prior art, the utility model provides a double-sided telescopic connecting rod locking mechanism, which has a self-locking function and high locking reliability.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A double-sided telescopic connecting rod locking mechanism comprises a main body bracket, a return spring is arranged inside the main body bracket, and locking rods are arranged on both sides of the return spring. The middle part of the main body bracket is connected to a turntable part, the turntable part is connected to a driving line and a moving connecting rod, and the other end of the moving connecting rod is connected to the locking rod.

[0007] As a preferred embodiment of the present invention, a connecting shaft for connecting to the turntable part is provided in the middle portion of the main body bracket.

[0008] As a preferred embodiment of the present invention, a sliding groove is provided on the main body bracket, and the moving connecting rod moves along the sliding groove to drive the locking rod to move.

[0009] As a preferred embodiment of the present invention, the turntable portion includes a lower turntable, an upper turntable arranged above the lower turntable, and a locking cover for fixing the lower turntable and the upper turntable.

[0010] As a preferred embodiment of the present invention, the driving line includes a gate line.

[0011] As a preferred embodiment of the present invention, the brake wire is guided by a brake wire guide tube.

[0012] Due to the adoption of the above technical solution, compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The double-sided telescopic connecting rod locking mechanism of the utility model is provided with a reset spring, which can realize the simultaneous telescopic movement of both sides and has a self-locking function, making the product more stable;

[0014] 2. The utility model provides a double-sided telescopic connecting rod locking mechanism. In the locked state, the moving connecting rod and the locking rod are in the same direction. When the locking rod is pushed from the outside, the locking rod is restricted by the moving connecting rod and cannot be retracted. It can only be retracted and unlocked when the driving line is pulled, and is not easily affected by external interference and caused by mis-locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By referring to the following description in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other purposes and results of the present invention will become more clear and easy to understand. In the accompanying drawings:

[0016] Figure 1 This is the main view of the example of the utility model in the unlocked state;

[0017] Figure 2 This is the front view of the utility model example in the locked state;

[0018] Figure 3 It is an exploded view of an example of the utility model;

[0019] The reference numerals therein include: main body bracket 1, return spring 2, locking rod 3, turntable part 4, driving line 5, moving connecting rod 6, connecting shaft 11, slide groove 12, socket 31, lower turntable 41, upper turntable 42, locking cover 43, self-tapping screw 44, brake wire 51, brake wire guide tube 52, connecting pin 61. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0021] 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.

[0022] In the description of the present utility model, 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 connection of two components. It should be pointed out that all the drawings are exemplary representations. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] The present invention will be further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0024] Reference Figures 1 to 3 , a double-sided telescopic connecting rod locking mechanism, comprising a main body bracket 1, a return spring 2, a locking rod 3, a turntable part 4, a driving line 5, and a moving connecting rod 6. The main body bracket 1 is used as a main body, and a through hole is provided inside the main body bracket 1. The return spring 2 is arranged in the through hole inside the main body bracket 1. Two locking rods 3 are respectively arranged in the through holes inside the main body bracket 1 on both sides of the return spring 2. The return spring 2 provides an outward thrust to the locking rod 3 to achieve the extension and locking of the two locking rods 3. A rotatable turntable part 4 is connected to the turntable part 4. The drive line 5 and two moving connecting rods 6 can be used to rotate the turntable part 4. The two ends of the moving connecting rod 6 are respectively connected to the turntable part 4 and the locking rod 3. A connecting pin 61 is provided on the moving connecting rod 6, and the connecting pin 61 is inserted into the insertion hole 31 of the locking rod 3.

[0025] The main body bracket 1 is provided with a connecting shaft 11 and a sliding groove 12. The connecting shaft 11 is arranged in the middle part of the main body bracket 1 and is used to connect the turntable part 4. The connecting shaft 11 is preferably a cylindrical shaft. The two sliding grooves 12 are arranged on the main body bracket 1. The sliding groove 12 is connected to the internal through hole of the main body bracket 1. The connecting pin 61 of the moving link 6 moves along the sliding groove 12 to drive the locking rod 3 to move.

[0026] The turntable portion 4 includes a lower turntable 41, an upper turntable 42, a locking cover 43, and self-tapping screws 44. The lower turntable 41 is first set on the connecting shaft 1, the upper turntable 42 is set above the lower turntable 41, and the locking cover 43 is set above the upper turntable 42. The locking cover 43 presses the lower turntable 41 and the upper turntable 42, and then fixes the locking cover 43 to the top of the connecting shaft 1 through the self-tapping screws 44.

[0027] The driving wire 5 includes a brake wire 51, which is guided by a brake wire guide tube 52. One end of the brake wire 51 is fixed between the lower turntable 41 and the upper turntable 42, and is guided by the brake wire guide tube 52. The other end of the brake wire 51 is connected to the handle of the handrail. When the handle is pulled, linkage can be achieved, so that the two locking rods 3 are contracted to achieve unlocking action. When the handle of the handrail is released, the brake wire 51 no longer applies tension, and the two locking rods 3 are extended under the push of the return spring 2 to achieve locking action.

[0028] The following will refer to Figures 1 to 3 The working principle of the utility model is described.

[0029] The turntable part 4 is driven to rotate by pulling the driving wire 5, and the turntable part 4 drives the two moving connecting rods 6 to move along the sliding groove 12, thereby driving the two locking rods 3 to retract and move at the same time to achieve the unlocking action; when no force is applied to the driving wire 5, the two locking rods 3 are extended and inserted into the locking groove of the opponent under the push of the return spring 2 to achieve the locking action. In the locked state, the locking rod 3 is only retracted and unlocked when the driving wire is pulled, and is not easily affected by the external environment and causes mis-locking, thereby improving the locking reliability.

[0030] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A double-sided telescopic connecting rod locking mechanism, characterized in that: It includes a main body bracket, a reset spring and locking rods arranged on both sides of the reset spring are arranged inside the main body bracket, a turntable part is connected to the middle part of the main body bracket, the turntable part is connected to the driving line and the moving connecting rod, and the other end of the moving connecting rod is connected to the locking rod.

2. A double-sided telescopic connecting rod locking mechanism according to claim 1, characterized in that: A connecting shaft for connecting the turntable part is provided in the middle part of the main body bracket.

3. The double-sided telescopic connecting rod locking mechanism according to claim 1, characterized in that: The main body bracket is provided with a sliding groove, and the movement connecting rod moves along the sliding groove to drive the locking rod to move.

4. The double-sided telescopic connecting rod locking mechanism according to claim 1, characterized in that: The turntable portion comprises a lower turntable, an upper turntable arranged above the lower turntable, and a locking cover for fixing the lower turntable and the upper turntable.

5. The double-sided telescopic connecting rod locking mechanism according to claim 1, characterized in that: The driving line includes a gate line.

6. A double-sided telescopic connecting rod locking mechanism according to claim 5, characterized in that: The brake wire is guided by a brake wire guide tube.

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