Headrest frame for a seat

Abstract

The utility model relates to electric seat technical field, specifically disclose a headrest frame of seat, include: first support, with the one side rotation connection of first support's second support, set up on the drive module of first support, the drive module includes drive main body, adapter stem and guide wheel, the adapter stem is connected with the output of drive main body, drive main body is used to drive adapter stem to make linear reciprocating motion, the guide wheel rotatable set up on adapter stem, the oblique setting of second support's guide plate, the guide wheel abuts on guide plate and can along guide plate motion, set up between the guide plate and first support's elastomer, the utility model discloses through the cooperation of guide plate and guide wheel, prolongs the movement path, and then improves the adjustment range of angle, and the rolling adjustment mode is more stable and smooth, improves the comfort of use.

Description

Technical Field

[0001] This utility model relates to the field of electric seat technology, specifically to a headrest frame for a seat. Background Technology

[0002] Current electric seats typically feature multiple adjustable rotation positions to enhance user comfort. For example, the headrest can be adjusted to change its tilt angle. A common headrest adjustment mechanism is the headrest rotation mechanism for a seat unit disclosed in patent CN220423526U. This mechanism includes an actuation motor whose motor head is connected to a second side plate. The actuation rod of the motor acts on a first side plate via a drive linkage. The headrest rotation mechanism includes a pair of first side plates for connecting the headrest and a pair of second side plates for connecting the backrest. The first and second side plates are movably connected via a headrest joint. This type of structure uses a direct rotatable connection between the motor's output end and a certain point on the frame to achieve rotation adjustment. However, this results in a jerky, uneven adjustment and limited angle change. Utility Model Content

[0003] The purpose of this utility model is to provide a headrest frame for a seat to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a headrest frame for a seat, comprising:

[0005] First support;

[0006] A second bracket rotatably connected to one side of the first bracket;

[0007] The drive module is mounted on the first bracket. The drive module includes a drive body, a connecting rod, and a guide wheel. The connecting rod is connected to the output end of the drive body. The drive body is used to drive the connecting rod to make a linear reciprocating motion. The guide wheel is rotatably mounted on the connecting rod.

[0008] An inclined guide plate is mounted on the second bracket, and the guide wheel abuts against the guide plate and can move along the guide plate;

[0009] An elastic body is disposed between the guide plate and the first bracket.

[0010] Furthermore, the first bracket includes a first crossbeam and first side plates disposed at both ends of the first crossbeam. A first mounting plate is disposed on the first crossbeam, and the first mounting plate is used to mount the drive body.

[0011] Furthermore, a second mounting plate is provided on the first crossbeam, which is used to connect the elastomer.

[0012] Furthermore, the second support includes a second crossbeam and second side plates disposed at both ends of the second crossbeam. The second side plates are rotatably connected to the first side plates and are disposed in parallel. The first crossbeam and the second crossbeam are disposed in parallel.

[0013] Furthermore, the guide plate is disposed on the second crossbeam, and a connecting plate is disposed on one of the guide plates for connecting the elastic body.

[0014] Furthermore, a guide strip is formed by a protrusion in the middle of the guide plate, the guide strip corresponds to the groove on the guide wheel, and both ends of the guide plate are bent inward.

[0015] Furthermore, the guide plate has a tail plate at its rear end, the tail plate being connected to the second crossbeam, and the guide strip extending to the tail plate.

[0016] This utility model has the following beneficial effects:

[0017] This invention extends the movement path by combining the guide plate and the guide wheel, thereby increasing the angle adjustment range. At the same time, the rolling adjustment method is more stable and smooth, improving the comfort of use. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an overall schematic diagram of the headrest frame of the seat in Example 1;

[0020] Figure 2 for Figure 1 Enlarged schematic diagram of the drive module;

[0021] Figure 3 for Figure 1 Enlarged schematic diagram of the center guide plate;

[0022] Figure 4 for Figure 3 A side view diagram.

[0023] Figure label:

[0024] First bracket 10; first crossbeam 11; first side plate 12; first mounting plate 13; second mounting plate 14; second bracket 20; second crossbeam 21; second side plate 22; drive module 30; drive body 31; adapter rod 32; guide wheel 33; guide plate 40; guide strip 41; tail plate 42; elastic body 50; connecting plate 60. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] like Figures 1-4 As shown, the headrest frame of the seat in this embodiment is mainly used to adjust the angle of the headrest position. It is mainly composed of a first bracket 10, a second bracket 20 rotatably connected to one side of the first bracket 10, a drive module 30 set on the first bracket 10, a guide plate 40 inclinedly set on the second bracket 20, and an elastic body 50 set between the guide plate 40 and the first bracket 10. The drive module 30 drives the second bracket 20 and the first bracket 10 to rotate relative to each other to achieve angle adjustment. The elastic body 50 holds the second bracket 20 and the first bracket 10 together to prevent loosening.

[0028] Here, the second bracket 20 is provided to extend outward along the width direction of the first bracket 10.

[0029] Specifically, the drive module 30 includes a drive body 31, a connecting rod 32, and guide wheels 33. The connecting rod 32 is connected to the output end of the drive body 31. The drive body 31 is used to drive the connecting rod 32 to make a linear reciprocating motion. The guide wheels 33 are rotatably mounted on the connecting rod 32. The drive body 31 is an electric push rod. The connecting rod 32 is perpendicularly connected to the output end of the drive body 31. Two guide wheels 33 are sleeved on the connecting rod 32 and located on both sides of the output end. The guide wheels 33 abut against the guide plate 40 and can move along the guide plate 40.

[0030] The first bracket 10 includes a first crossbeam 11 and first side plates 12 disposed at both ends of the first crossbeam 11. A first mounting plate 13 is disposed on the first crossbeam 11 for mounting the drive body 31. A second mounting plate 14 is disposed on the first crossbeam 11 for connecting the elastic body 50.

[0031] Correspondingly, the second support 20 includes a second crossbeam 21 and second side plates 22 disposed at both ends of the second crossbeam 21. The second side plates 22 are rotatably connected to the first side plates 12 and are disposed in parallel. The first crossbeam 11 is disposed in parallel with the second crossbeam 21.

[0032] Additionally, a guide plate 40 is disposed on the second crossbeam 21, and a connecting plate 60 is disposed on the guide plate 40. The connecting plate 60 is used to connect the elastic body 50, that is, both ends of the elastic body 50 pass through the connecting plate 60 and the second mounting plate 14. The elastic body 50 is a tension spring here.

[0033] The guide plate 40 has a central protrusion forming a guide strip 41. The guide wheel 33 has a V-shaped wheel structure with a V-shaped groove. The guide strip 41 corresponds to the groove on the guide wheel 33. The two ends of the guide plate 40 are bent inward. The tail of the guide plate 40 has a tail plate 42. The tail plate 42 is connected to the second crossbeam 21 by welding. The guide strip 41 extends to the tail plate 42. The width of the tail plate 42 is smaller than the width of the rest of the guide plate 40.

[0034] When in use, start the drive body 31, and the guide wheel 33 moves forward or retracts along with the adapter rod 32 on the guide plate 40, which in turn drives the second bracket 20 to rotate against the elastic force of the tension spring.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A headrest frame for a seat, characterized in that, include: First support; A second bracket rotatably connected to one side of the first bracket; The drive module is mounted on the first bracket. The drive module includes a drive body, a connecting rod, and a guide wheel. The connecting rod is connected to the output end of the drive body. The drive body is used to drive the connecting rod to make a linear reciprocating motion. The guide wheel is rotatably mounted on the connecting rod. An inclined guide plate is mounted on the second bracket, and the guide wheel abuts against the guide plate and can move along the guide plate; An elastic body disposed between the guide plate and the first bracket; The second support includes a second crossbeam and second side plates disposed at both ends of the second crossbeam. The second side plates are rotatably connected to the first side plates and are disposed in parallel.

2. The headrest frame of a seat according to claim 1, characterized in that: The first bracket includes a first crossbeam and first side plates disposed at both ends of the first crossbeam. A first mounting plate is disposed on the first crossbeam and is used to mount the drive body. The first crossbeam and the second crossbeam are arranged in parallel.

3. The headrest frame of a seat according to claim 2, characterized in that: A second mounting plate is provided on the first crossbeam, and the second mounting plate is used to connect the elastic body.

4. The headrest frame for a seat according to claim 3, characterized in that: The guide plate is mounted on the second crossbeam, and a connecting plate is mounted on one of the guide plates for connecting the elastic body.

5. The headrest frame of a seat according to claim 4, characterized in that: The guide plate has a central protrusion forming a guide strip, which corresponds to the groove on the guide wheel, and both ends of the guide plate are bent inward.

6. The headrest frame of a seat according to claim 5, characterized in that: The guide plate has a tail plate at its rear end, the tail plate is connected to the second crossbeam, and the guide strip extends to the tail plate.

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