Rear support assembly for automobile seat framework

Abstract

The utility model discloses a rear support assembly for an automobile seat framework, which relates to the technical field of automobile interiors, and comprises a backrest framework, a rear cover plate is arranged on the back surface of the backrest framework, a cavity is formed on the binding surface of the rear cover plate and the backrest framework, and the cavity is communicated with the backrest framework. A pair of round holes are formed in the top surface of the cavity, and a lifting piece which is connected with the cavity in an up-down sliding mode is arranged in the cavity; according to the rear supporting assembly for the automobile seat framework, when a headrest is adjusted up and down, the headrest does not need to be turned over and adjusted on the headrest, the knob can be directly rotated below one side of a backrest of an automobile seat, the headrest can be adjusted after a user sits on the automobile seat, adjustment is convenient and fast, and when the headrest is adjusted to the highest position, the inner threaded sleeve is exposed, so that the headrest is not prone to falling off. The headrest can be replaced by reversely rotating the internal thread sleeve to be separated from the headrest rod end, the structure is simple, and replacement is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior decoration, in particular to a rear support assembly for an automobile seat frame. Background Art

[0002] The car seat frame is an important part of the car seat, and its function is to ensure the strength of the car seat all day long.

[0003] The rear support assembly is a part of the car seat frame (the backrest end) and can withstand the pressure of people. Current car seat backs are usually equipped with corresponding headrests. These headrests are usually installed on the rear support assembly and have the function of height adjustment. High-configuration car headrests have automatic adjustment, while some low-configuration cars, in order to reduce costs, usually use manual adjustment. Then these manual adjustment switches are usually installed at the connection between the headrest rod end and the top of the backrest. People cannot adjust the seat while sitting on it. They need to stand up and turn over to adjust it, and the adjustment is relatively unchanged. Utility Model Content

[0004] The utility model provides a rear support assembly for an automobile seat frame, which has the advantages of convenient adjustment and replacement of a headrest, and solves the problems raised in the background technology.

[0005] In order to solve the defect that the headrest of the rear support assembly used in the existing automobile seat frame is inconvenient to adjust and replace, the utility model provides the following technical solutions: a rear support assembly for an automobile seat frame, comprising a backrest frame, the back of the backrest frame is provided with a rear cover plate, the rear cover plate and the backrest frame fitting surface form a cavity, the top surface of the cavity is provided with a pair of circular holes, the cavity is provided with a lifting plate connected to it for upward and downward sliding, the top surface of the lifting plate is welded with a pair of long tubes passing through the circular holes, the long tubes are threadedly connected with an internal threaded sleeve, the bottom end of the lifting plate is provided with a pair of springs fixedly connected to the inner wall below the cavity, the bottom end of the lifting plate is fixedly connected with a traction rope passing through the outside of the rear cover plate, and a pulling mechanism connected to the traction rope is provided at the lower rear side of the backrest frame.

[0006] As a preferred technical solution of the present invention, the rear cover plate and the backrest frame are fixedly connected by four screws.

[0007] As a preferred technical solution of the utility model, the diameter of the circular hole is larger than the outer diameter of the internal threaded sleeve.

[0008] As a preferred technical solution of the utility model, a pair of extended guide cylinders are welded to the top surface of the backrest frame, and the inner diameter of the extended guide cylinders is larger than the outer diameter of the internal threaded sleeve.

[0009] As a preferred technical solution of the utility model, the pulling mechanism includes a long frame fixedly installed by bolts at the lower back side of the backrest frame, a screw rod is installed in the long frame, the screw rod is threadedly connected to a slider which is laterally slidably connected to the long frame, and the traction rope is fixedly connected to the side end of the slider.

[0010] As a preferred technical solution of the utility model, a knob connected to the screw rod is provided at the other end of the long frame.

[0011] As a preferred technical solution of the utility model, a conduit connected to an outer wall of one side of the long frame is provided at the bottom end of the rear cover plate, and the traction rope passes through the conduit.

[0012] Compared with the prior art, the utility model provides a rear support assembly for a car seat frame, which has the following beneficial effects:

[0013] 1. The rear support assembly for the car seat frame does not need to turn over and adjust the headrest on the headrest when adjusting the headrest up and down. The knob can be directly rotated under one side of the car seat backrest. The adjustment can be made after the seat is seated, which is convenient and quick.

[0014] 2. When the rear support assembly of the automobile seat frame is adjusted to the highest position, the internal thread sleeve is exposed. At this time, the internal thread sleeve can be reversed to separate it from the headrest rod end, so that the headrest can be replaced. The structure is simple and the replacement is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the forward structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the rear structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 A magnified view of middle;

[0018] Figure 4 This is a schematic diagram of the structure of the internal components of the cavity after the rear cover is opened according to the utility model.

[0019] In the figure:

[0020] 1. Backrest frame; 2. Rear cover; 3. Cavity; 4. Round hole; 5. Lifting plate; 6. Long cylinder; 7. Internal threaded sleeve; 8. Spring; 9. Traction rope; 10. Screw; 11. Extension guide cylinder; 12. Long frame; 13. Screw; 14. Slider; 15. Knob; 16. Conduit. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 The utility model discloses a rear support assembly for a car seat frame, including a backrest frame 1, a backrest frame 1, a back cover plate 2 is provided on the back of the backrest frame 1, a cavity 3 is formed on the mating surface of the back cover plate 2 and the backrest frame 1, a pair of round holes 4 are opened on the top surface of the cavity 3, a lifting piece 5 connected with it for sliding up and down is provided in the cavity 3, a pair of long cylinders 6 penetrating the round holes 4 are welded on the top surface of the lifting piece 5, and the rod end below the headrest can be inserted therein, the long cylinder 6 is threadedly connected with an internal thread sleeve 7, the internal thread sleeve 7 is rotated forward, so that the internal thread sleeve 7 is threadedly connected with the headrest rod end, so as to realize the fixed installation of the headrest, a pair of springs 8 fixedly connected to the inner wall below the cavity 3 are provided at the bottom end of the lifting piece 5, which are support springs and play a good elastic supporting role, a traction rope 9 penetrating to the outside of the rear cover plate 2 is fixedly connected to the bottom end of the lifting piece 5, and a pulling mechanism connected with the traction rope 9 is provided at the lower rear side of the backrest frame 1.

[0023] Specifically, four screws 10 are used to fix the rear cover plate 2 and the backrest frame 1 .

[0024] In this embodiment, it plays the role of fixed installation and has the function of disassembly and assembly, which is convenient for subsequent maintenance.

[0025] Specifically, the diameter of the circular hole 4 is larger than the outer diameter of the internal threaded sleeve 7 , a pair of extended guide cylinders 11 are welded to the top surface of the backrest frame 1 , and the inner diameter of the extended guide cylinders 11 is larger than the outer diameter of the internal threaded sleeve 7 .

[0026] In this embodiment, it plays a protective role and will not affect the up and down movement of the internal thread sleeve 7.

[0027] Specifically, the pulling mechanism includes a long frame 12 fixedly installed by bolts at the lower back of the backrest frame 1, a screw rod 13 is installed in the long frame 12, the screw rod 13 is threadedly connected to a slider 14 which is laterally slidably connected to the long frame 12, the traction rope 9 is fixedly connected to the side end of the slider 14, and the other end of the long frame 12 is provided with a knob 15 connected to the screw rod 13.

[0028] In this embodiment, the setting of the knob 15 facilitates the rotation of the screw rod 13 and plays an auxiliary role. By rotating the knob 15, the traction rope 9 can be pulled or released, and in conjunction with the spring 8 and the lifting plate 5, the height of the headrest can be adjusted, and it is also convenient for the subsequent disassembly and assembly of the headrest.

[0029] Specifically, a conduit 16 connected to an outer wall of one side of the long frame 12 is provided at the bottom end of the rear cover plate 2 , and the traction rope 9 passes through the conduit 16 .

[0030] In this embodiment, the traction rope 9 is guided and protected to avoid affecting the height adjustment of the headrest.

[0031] The working principle and use process of this utility model:

[0032] When adjusting the headrest up and down, the driver or other personnel does not need to turn over and adjust the headrest, but can sit down and directly turn the knob 15 forward or reverse, the screw rod 13 rotates and drives one end of the slider 14 (forward rotation, the slider 14 pulls the traction rope 9, at this time the spring 8 elastically contracts, and the headrest moves down with the lifting piece 5; reverse rotation, the slider 14 releases the traction rope 9, at this time the spring 8 elastically extends, and under the elastic force of the spring 8, the headrest moves up with the lifting piece 5), and the adjustment is convenient and quick;

[0033] When the headrest needs to be replaced, the knob 15 is reversed until it cannot be rotated anymore. At this time, the lifting plate 5 is at the highest position, and the headrest is also at the highest position. The internal threaded sleeve 7 is exposed. The internal threaded sleeve 7 is reversed to separate it from the headrest rod end (the internal threaded sleeve 7 is not threadedly connected to the headrest rod end), and the headrest inserted into the long tube 6 is pulled out upwards. The headrest can be replaced quickly and conveniently.

[0034] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations 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 includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rear support assembly for a car seat frame, characterized in that: The invention comprises a backrest frame, wherein a rear cover plate is provided on the back side of the backrest frame, a cavity is formed between the rear cover plate and the mating surface of the backrest frame, a pair of circular holes are opened on the top surface of the cavity, a lifting plate is provided in the cavity and is slidably connected thereto up and down, a pair of long tubes penetrating the circular holes are welded on the top surface of the lifting plate, the long tubes are threadedly connected with internal threaded sleeves, a pair of springs fixedly connected to the inner wall below the cavity are provided at the bottom end of the lifting plate, a traction rope penetrating to the outside of the rear cover plate is fixedly connected to the bottom end of the lifting plate, and a pulling mechanism connected to the traction rope is provided at the lower rear side of the backrest frame.

2. The rear support assembly for a vehicle seat frame according to claim 1, characterized in that: The rear cover plate and the backrest frame are fixedly connected by four screws.

3. The rear support assembly for a vehicle seat frame according to claim 1, characterized in that: The diameter of the circular hole is larger than the outer diameter of the internal thread sleeve.

4. The rear support assembly for a vehicle seat frame according to claim 1, characterized in that: A pair of extended guide cylinders are welded to the top surface of the backrest frame, and the inner diameter of the extended guide cylinders is greater than the outer diameter of the internal threaded sleeve.

5. The rear support assembly for a vehicle seat frame according to claim 1, characterized in that: The pulling mechanism comprises a long frame fixedly installed with bolts below the back of the backrest frame, a screw rod is installed in the long frame, the screw rod is threadedly connected to a slider which is laterally slidably connected to the long frame, and the traction rope is fixedly connected to the side end of the slider.

6. The rear support assembly for a vehicle seat frame according to claim 5, characterized in that: The other end of the long frame is provided with a knob connected with the screw rod.

7. The rear support assembly for a vehicle seat frame according to claim 5, characterized in that: A conduit connected to an outer wall of one side of the long frame is provided at the bottom end of the rear cover plate, and the traction rope passes through the conduit.

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