Quick-response swing locking support

Abstract

The utility model provides a quick response swing locking support, which solves the problems of linkage limiting and the like of a swing support and comprises a pair of swing arms which are hinged in a crossed mode, auxiliary swing arms are hinged to the ends of the swing arms respectively, the ends of the auxiliary swing arms are connected with a same push rod in a rotating mode, and sliding limiting assemblies are arranged between the push rod and the swing arms. A swing limiting assembly is arranged between the swing arm and the auxiliary swing arm. The supporting structure has the advantages of good supporting stability, high structural strength and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of sofa connecting rods, and particularly relates to a quick-response swing locking bracket. Background Art

[0002] Most existing electric sofas use electric push rods to provide driving force, and the driving torque is transmitted through corresponding connecting rods. To limit their range of motion, in addition to using a servo motor to control the amount of movement, a locking bracket can also be used to limit the internal swing mechanism. However, in the actual control process, the existing connecting rods inside the sofa lack an effective limiting structure during movement, and abnormal noises occur due to misalignment after long-term movement, affecting the use comfort. In addition, when the sofa performs the opening and closing movement, the compactness of its drive structure is poor.

[0003] In order to solve the deficiencies of the existing technology, people have conducted long-term explorations and proposed various solutions. For example, a Chinese patent document discloses a mimic swing sofa base device [201510928779.8], which includes a telescopic drive unit, a switch unit, a trigger unit, and a trigger reset unit; the footrest support unit further includes a fifth connecting rod and a sixth connecting rod, and a front limiting portion and a rear limiting portion are provided at the front of the fifth connecting rod; a locking groove is provided at the rear of the sixth connecting rod; a sliding groove is provided on the fourth connecting rod for enabling the hinge shaft at the end of the third connecting rod to slide relatively; the transmission unit is used to link the footrest support unit and the backrest support unit; the swing mechanism includes a swing bracket for supporting the telescopic mechanism and the swing mechanism, a front swing connecting member, and a rear swing connecting member, and also includes a limiting pin; a rotating mechanism is included, and the rotating mechanism is used to be fixedly connected with the swing bracket for enabling the mimic swing sofa assembly composed of the telescopic mechanism and the swing mechanism to perform a rotating motion relative to the ground.

[0004] The above solution solves the problem of poor compactness of the connecting rod structure to a certain extent, but there are still many deficiencies in this solution, such as the lack of effective limiting during the swing linkage process and other problems. Summary of the Invention

[0005] The purpose of the utility model is to provide a quick-response swing locking bracket with reasonable design and good limiting effect for the above problems.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A quick-response swing locking bracket includes a pair of swing arms that are cross-hinged, and auxiliary swing arms are respectively hinged at the ends of the swing arms. The same push rod is rotatably connected to the ends of the auxiliary swing arms. A sliding limiting component is arranged between the push rod and the swing arms, and a swing limiting component is arranged between the swing arms and the auxiliary swing arms.

[0007] In the above-mentioned quick-response swing locking bracket, the swing arm includes an integrally formed front swing arm and a rear swing arm. The swing arm is hinged at the junction of the front swing arm and the rear swing arm. An expansion component is connected to the end of the front swing arm, and the end of the rear swing arm is hinged to the auxiliary swing arm.

[0008] In the above-mentioned quick-response swing locking bracket, the expansion component includes an expansion hole provided at the end of the front swing arm, and a number of expansion bayonets are arranged on the side of the front swing arm.

[0009] In the above-mentioned quick-response swing locking bracket, the auxiliary swing arm is divided into a first connecting arm and a second connecting arm by a stepped portion. The first connecting arm is hinged to the swing arm, and the second connecting arm is rotatably connected to the push rod.

[0010] In the above-mentioned quick-response swing locking bracket, the sliding limit component includes a limit plate. The hinged part of the swing arm is rotatably connected to the limit plate. A limit groove extending axially is provided on the limit plate, and the push rod is slidably connected to the limit groove.

[0011] In the above-mentioned quick-response swing locking bracket, an elastic resetting member is connected between the end of the push rod and the limit plate, and an elastic resetting member is connected between the swing arm and the auxiliary swing arm.

[0012] In the above-mentioned quick-response swing locking bracket, the swing limit component includes a movable arm rotatably connected to one of the auxiliary swing arms. The other auxiliary swing arm is provided with an activity groove extending axially, and an activity block slidably connected to the activity groove is provided at the end of the movable arm.

[0013] In the above-mentioned quick-response swing locking bracket, the movable arm includes two split arm bodies rotatably connected. The split arm bodies are fixedly connected by threaded fasteners. One of the split arm bodies is rotatably connected to the auxiliary swing arm, and the other split arm body is connected to the activity block.

[0014] In the above-mentioned quick-response swing locking bracket, a number of mounting holes are provided on the swing arm.

[0015] In the above-mentioned quick-response swing locking bracket, a transfer seat is provided at the end of the push rod.

[0016] Compared with the existing technology, the advantages of the present utility model are as follows: A double limit component is provided between the swing arm and the auxiliary swing arm to respectively perform sliding and swing limiting, ensuring the motion stability when the bracket performs opening and closing motions; The auxiliary swing arm uses an elastic resetting member to achieve automatic reset, and the symmetrically arranged elastic resetting members can provide sufficient reset elastic force; The swing limit component can adjust the angle of the movable arm, thereby adjusting the maximum movable angle of the auxiliary swing arm according to the specifications of the sofa bracket. Brief Description of the Drawings

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0019] Figure 3 It is a structural schematic diagram of another perspective of the utility model;

[0020] In the figure, a swing arm 1, a front swing arm 11, a rear swing arm 12, an expansion hole 13, an expansion bayonet 14, an auxiliary swing arm 2, a first connecting arm 21, a second connecting arm 22, a push rod 3, a sliding limit assembly 4, a limit plate 41, a limit groove 42, an elastic reset member 43, a swing limit assembly 5, a movable arm 51, a movable groove 52, a movable block 53, a split arm body 54, a mounting hole 6, and an adapter 7. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figures 1-3 As shown, a fast response swing locking bracket includes a pair of cross-hinged swing arms 1, which mainly meet the linkage requirements of the internal opening and closing structure of the electric sofa. In order to realize torque transmission, the ends of the swing arms 1 are respectively hinged with auxiliary swing arms 2, and the ends of the auxiliary swing arms 2 are rotatably connected to the same push rod 3, and the push rod 3 is connected to the electric push rod to provide telescopic driving torque. A sliding limit assembly 4 is provided between the push rod 3 and the swing arm 1 to limit the telescopic motion trajectory of the push rod 3. A swing limit assembly 5 is provided between the swing arm 1 and the auxiliary swing arm 2. When the swing arm 1 and the auxiliary swing arm 2 perform opening and closing movements, the swing limit assembly 5 adjusts its maximum opening and closing angle according to the overall specifications of the bracket.

[0023] Specifically, the swing arm 1 is in the shape of a long strip, and specifically includes an integrally formed front swing arm 11 and a rear swing arm 12. The swing arm 1 is hinged at the junction of the front swing arm 11 and the rear swing arm 12. The end of the front swing arm 11 is connected with an expansion component, and the end of the rear swing arm 12 is hinged with the auxiliary swing arm 2. The swing arm 1 is crossed and expanded according to actual needs.

[0024] Furthermore, the expansion assembly includes an expansion hole 13 arranged at the end of the front swing arm 11, and a plurality of expansion bayonet holes 14 are arranged on the side of the front swing arm 11. The expansion hole 13 is connected to the vertical rod body through an external connecting piece, driving the sofa armrest and other components to separate, and the expansion bayonet hole 14 is engaged with the internal limit buckle of the sofa.

[0025] In addition, the auxiliary swing arm 2 is divided into a first connecting arm 21 and a second connecting arm 22 by a step portion, the first connecting arm 21 is hinged to the swing arm 1, and the second connecting arm 22 is rotatably connected to the push rod 3. The auxiliary swing arm 2 and the swing arm 1 move synchronously.

[0026] Meanwhile, compared with the conventional limiting structure, the sliding limiting assembly 4 in this embodiment includes a limiting plate 41, the swing arm 1 is rotatably connected to the limiting plate 41 at the hinge, the limiting plate 41 is provided with a limiting groove 42 extending along the axial direction, and the push rod 3 is slidably connected to the limiting groove 42. The push rod 3 performs axial telescopic movement, the swing arm 1 and the auxiliary swing arm 2 swing, and the push rod 3 is locked when it is stationary.

[0027] It can be seen that when the electric push rod connected to the push rod 3 is powered off, an elastic reset member 43 is connected between the end of the push rod 3 and the limit plate 41, and an elastic reset member 43 is connected between the swing arm 1 and the auxiliary swing arm 2. The elastic reset member 43 drives the electric push rod to automatically reset.

[0028] Obviously, the swing limit assembly 5 includes a movable arm 51 rotatably connected to one of the auxiliary swing arms 2, and the other auxiliary swing arm 2 is provided with a movable groove 52 extending along the axial direction. A movable block 53 is provided at the end of the movable arm 51 and is slidably connected to the movable groove 52. Its guide rail structure plays an additional balancing role on the auxiliary swing arm 2 as a whole.

[0029] Preferably, the movable arm 51 includes two rotatably connected arm bodies 54, which are fixedly connected by threaded fasteners, one of which is rotatably connected to the auxiliary swing arm 2, and the other is connected to the movable block 53. The angle of the arm bodies 54 is locked by the threaded fasteners, and the size of the angle is adjusted with the swing range of the swing arm 1.

[0030] Obviously, a plurality of mounting holes 6 are provided on the swing arm 1 to facilitate the assembly of the internal connecting rod structure of the sofa. The mounting holes 6 are of different sizes but are arranged axially along the swing arm 1 .

[0031] It can be seen that a transfer seat 7 is provided at the end of the push rod 3, and the transfer seat 7 is connected to the external electric push rod by a flange or spline connection.

[0032] To sum up, the principle of this embodiment is that the swing arm 1 is hinged to the auxiliary swing arm 2 and is symmetrically arranged relative to the sliding limit assembly 4. The sliding limit assembly 4 and the swing limit assembly 5 limit the swing angle range. When the range of movement needs to be adjusted, the movable arm 51 in the swing limit assembly 5 is adjusted at an angle.

[0033] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although the terms such as swing arm 1, front swing arm 11, rear swing arm 12, expansion hole 13, expansion bayonet 14, auxiliary swing arm 2, first connecting arm 21, second connecting arm 22, push rod 3, sliding limit assembly 4, limit plate 41, limit groove 42, elastic reset member 43, swing limit assembly 5, movable arm 51, movable groove 52, movable block 53, split arm body 54, mounting hole 6, adapter seat 7, etc. are used more frequently in this text, the possibility of using other terms is not excluded. The use of these terms is only to more conveniently describe and explain the essence of the present utility model; interpreting them as any kind of additional limitation is contrary to the spirit of the present utility model.

Claims

1. A quick-response swing locking bracket, comprising a pair of swing arms (1) hinged crosswise, and auxiliary swing arms (2) are respectively hinged at the ends of the swing arms (1), characterized in that, The end of the auxiliary swing arm (2) is rotatably connected to the same push rod (3), a sliding limit assembly (4) is provided between the push rod (3) and the swing arm (1), and a swing limit assembly (5) is provided between the swing arm (1) and the auxiliary swing arm (2).

2. The quick-response swing locking bracket according to claim 1, wherein, The swing arm (1) comprises an integrally formed front swing arm (11) and a rear swing arm (12); the swing arm (1) is hinged at the junction of the front swing arm (11) and the rear swing arm (12); an expansion component is connected to the end of the front swing arm (11); and the end of the rear swing arm (12) is hinged to the auxiliary swing arm (2).

3. The quick-response swing locking bracket according to claim 2, wherein The expansion component comprises an expansion hole (13) arranged at the end of the front swing arm (11), and a plurality of expansion bayonet holes (14) are arranged on the side of the front swing arm (11).

4. The quick-response swing locking bracket according to claim 1, wherein, The auxiliary swing arm (2) is divided into a first connecting arm (21) and a second connecting arm (22) by a step portion; the first connecting arm (21) is hinged to the swing arm (1), and the second connecting arm (22) is rotationally connected to the push rod (3).

5. A quick-response swing locking bracket according to claim 4, characterized in that, The sliding limit assembly (4) comprises a limit plate (41), the swing arm (1) is rotatably connected to the limit plate (41) at a hinge, the limit plate (41) is provided with a limit groove (42) extending along the axial direction, and the push rod (3) is slidably connected to the limit groove (42).

6. The quick-response swing locking bracket according to claim 5, wherein, An elastic reset member (43) is connected between the end of the push rod (3) and the limit plate (41), and an elastic reset member (43) is connected between the swing arm (1) and the auxiliary swing arm (2).

7. A quick-response swing locking bracket according to claim 1, characterized in that, The swing limit assembly (5) comprises a movable arm (51) rotatably connected to one of the auxiliary swing arms (2); the other auxiliary swing arm (2) is provided with a movable groove (52) extending along the axial direction; and a movable block (53) slidably connected to the movable groove (52) is provided at the end of the movable arm (51).

8. The quick response swing locking bracket according to claim 7, wherein The movable arm (51) comprises two rotatably connected arm bodies (54), wherein the arm bodies (54) are fixedly connected via threaded fasteners, wherein one arm body (54) is rotatably connected to the auxiliary swing arm (2), and the other arm body (54) is connected to the movable block (53).

9. A quick-response swing locking bracket according to claim 1, characterized in that The swing arm (1) is provided with a plurality of mounting holes (6).

10. A fast-response swing locking bracket according to claim 1, characterized in that, The end of the push rod (3) is provided with an adapter seat (7).

Images