Four-way headrest framework structure driven by compressed air

Abstract

A four-way headrest framework structure driven by compressed air is characterized in that the headrest framework structure uses the compressed air as driving force for a headrest to move in the front-back direction of a vehicle body, the headrest framework structure comprises a headrest framework body, and a front compressed air driving part and a rear compressed air driving part are arranged on the front side and the rear side of the headrest framework body respectively; the front compressed air driving part and the rear compressed air driving part act after compressed air is input, a forward push plate and a backward push plate are arranged on the outer sides of the front compressed air driving part and the rear compressed air driving part respectively, a left push plate sliding rod and a right push plate sliding rod sequentially penetrate through the left sides and the right sides of the forward push plate, the headrest framework body and the backward push plate, and the ends of the left push plate sliding rod and the right push plate sliding rod are fixed through locking parts. The forward push plate is fixedly connected with the left push plate sliding rod and the right push plate sliding rod through fasteners, and the front compressed air driving piece and the rear compressed air driving piece are matched, so that the forward push plate and the rear push plate integrally move forwards or backwards relative to the headrest framework body. By means of the structure, discomfort caused by noise and vibration of the motor when the headrest is adjusted in the front-back direction is eliminated fundamentally, and the driving experience feeling and the grade feeling are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile seat, and relates to headrest framework, concretely relates to a four -way headrest framework structure of compressed gas drive. BACKGROUND

[0002] The current conventional four-way headrest is electric drive, for this, the driving motor is arranged, and the headrest is driven by the motor to move in the front-back direction (i.e. the vehicle body X direction), and the front-back position adjustment is provided.However, the noise and vibration inevitably exist in the motor operation itself, and the position is arranged close to the human ear, so that the noise and vibration of the motor when adjusting the X direction position of the headrest can easily bring discomfort, which is not conducive to improving the driving experience and grade feeling.

[0003] The conventional four-way headrest framework structure on the market at present mainly adopts the electric drive mode, but the noise generated in the process of driving the motor when adjusting the headrest in the front-back direction can bring discomfort to the driver and passenger, and affect the comfort.Therefore, it is necessary to improve the existing headrest framework structure. SUMMARY

[0004] In view of the above technical problems and shortcomings, the purpose of the utility model is to provide a four-way headrest framework structure driven by compressed gas, which improves the existing headrest framework structure by using the compressed gas drive mode, cancels the motor and worm drive mechanism for adjusting the X direction movement from the root, eliminates the discomfort caused by the motor noise and vibration when adjusting the headrest in the front-back direction, and improves the driving experience and grade feeling.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A four-way headrest framework structure driven by compressed gas, the headrest framework structure uses compressed gas as the driving force for the movement of the headrest in the front-back direction of the vehicle body, comprising a headrest framework body, the front and rear sides of the headrest framework body are respectively provided with a front compressed gas driving part and a rear compressed gas driving part, the front compressed gas driving part and the rear compressed gas driving part act after inputting compressed gas, the outer sides of the front compressed gas driving part and the rear compressed gas driving part are respectively provided with a front pushing plate and a rear pushing plate, a left pushing plate slide rod and a right pushing plate slide rod pass through the left and right sides of the front pushing plate, the headrest framework body and the rear pushing plate in turn, and the end is fixed through a locking part, the front pushing plate is fixedly connected with the left pushing plate slide rod and the right pushing plate slide rod through a fastener, and the front pushing plate and the rear pushing plate act as a whole towards the front or the rear relative to the headrest framework body through the cooperation of the front compressed gas driving part and the rear compressed gas driving part.

[0007] As a preferred embodiment of the utility model, the headrest framework body is provided with a control module, and the front-back direction adjustment position of the headrest is controlled through the control module.

[0008] As the preferred of the utility model, the front compressed gas drive part and the rear compressed gas drive part are air cylinders or air bags; the locking part is a clasp spring, the locking part is a bolt, and the end of the left push plate slide rod and the right push plate slide rod is provided with a clasp spring groove for cooperation with the clasp spring to realize fixation.

[0009] As the preferred of the utility model, the lower part of the headrest framework body is provided with a Z-direction lifting mechanism, the fixed end of the Z-direction lifting mechanism is fixed on the backrest framework, the headrest rod of the headrest framework body passes through the headrest guide sleeve fixed on the backrest framework, the lower end is connected with the movable end of the Z-direction lifting mechanism, and the position of the headrest framework body in the Z-direction is controlled through the Z-direction lifting mechanism.

[0010] As the further preferred of the utility model, the base of the air cylinder is fixed on the headrest framework body, and the driving end is fixedly connected with the front push plate or the rear push plate; when the air cylinder located at the front side performs the extending action, the air cylinder located at the rear side performs the retracting action, at this time, the front push plate and the rear push plate are integrally moved forward relative to the headrest framework body; when the air cylinder located at the front side performs the retracting action, the air cylinder located at the rear side performs the extending action, at this time, the front push plate and the rear push plate are integrally moved backward relative to the headrest framework body.

[0011] As the further preferred of the utility model, the air bag is fixed on the headrest framework body, the air bag is connected with the air pump through the air pipe, the air pipe is provided with an air valve and an air pressure detection module, the air valve and the air pressure detection module are electrically connected with a control module (ECU controller), the control module controls the air pump and the air valve according to the data monitored by the air pressure detection module.

[0012] As the further preferred of the utility model, the Z-direction lifting mechanism is driven by a lead screw motor, the movable end of the Z-direction lifting mechanism is provided with two plug-in parts for cooperation with the headrest rod to realize plug-in, and the outer circle of the plug-in part is provided with a locking spring for cooperation with the headrest rod to realize locking.

[0013] As the further preferred of the utility model, the air bag located at the front side of the headrest framework body is fixed on the headrest framework body through double-sided adhesive tape, and the outer side surface is butted with the front push plate; the air bag located at the rear side of the headrest framework body is fixed on the air bag tray through double-sided adhesive tape, and the outer side surface is butted with the rear push plate, and the air bag tray is fixed on the headrest framework body through a bolt.

[0014] As the further preferred of the utility model, the air pump and the air valve are arranged on the backrest framework, the air pipe passes through the inner hole of the headrest rod and extends from the upper end to be connected with the air bag.

[0015] As the further preferred of the utility model, the upper end of the headrest rod is provided with an air pipe gasket.

[0016] The headrest framework structure has the advantages and beneficial effects that:

[0017] (1) The headrest framework structure provided by the utility model improves the headrest framework structure by using compressed gas driving mode, cancels the motor, worm and other driving mechanisms for adjusting X direction movement from the source, eliminates the discomfort caused by motor noise and vibration when adjusting the headrest in the front and rear directions, greatly improves the driving experience and grade feeling.

[0018] (2) The headrest framework structure provided by the utility model has reasonable design, compact structure and modular structure design, so that disassembly and maintenance are convenient, and it is suitable for the current new energy vehicle requirements of more comfortable, more convenient and safer trend.

[0019] (3) The headrest framework structure provided by the utility model preferentially uses the air bag as the driving force of the headrest front and rear movement, and the cylinder and other output compressed gas are arranged in the backrest framework, which is changed into pneumatic and the cylinder and other components are arranged in the chair back, so that the motor noise can be greatly reduced, the vibration is eliminated, and the comfort is further improved, and the driver will not have any discomfort. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0021] Figure 1 The utility model provides the exploded schematic view of four -way headrest framework structure;

[0022] Figure 2 The utility model provides Figure 1 The utility model provides the enlarged schematic view of the headrest framework body part;

[0023] Figure 3 The utility model provides the schematic view of four -way headrest framework structure assembly on the seat framework.

[0024] The headrest framework body 1, the front push plate 2, the rear push plate 3, the left push plate sliding rod 4, the right push plate sliding rod 5, the air bag 6, the gas guide pipe 7, the headrest rod 8, the headrest guide sleeve 9, the snap spring 10, the bolt 11, the Z direction lifting mechanism 12, the backrest framework 13, the double-sided adhesive tape 14, the air bag tray 15, the air pipe gasket 16, the plug-in part 121, the locking spring 122. DETAILED DESCRIPTION

[0025] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0026] In the description of the present application, it should be further explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] As shown in Figures 1 to 3 The headrest framework structure driven by compressed gas provided by the embodiment uses compressed gas as the driving force for moving the headrest in the front-rear direction of the vehicle body, comprising a headrest framework body 1, the front and rear sides of the headrest framework body 1 are respectively provided with front compressed gas driving parts and rear compressed gas driving parts, the front compressed gas driving parts and the rear compressed gas driving parts act after inputting compressed gas, the outer sides of the front compressed gas driving parts and the rear compressed gas driving parts are respectively provided with front pushing plates 2 and rear pushing plates 3, left pushing plate slide rods 4 and right pushing plate slide rods 5 pass through the left and right sides of the front pushing plates 2, the headrest framework body 1 and the rear pushing plates 3 in turn, and the end portions are fixed by locking members, the front pushing plates 2 are fixedly connected with the left pushing plate slide rods 4 and the right pushing plate slide rods 5 by fasteners, and the front compressed gas driving parts and the rear compressed gas driving parts cooperate to make the front pushing plates 2 and the rear pushing plates 3 move forward or backward as a whole relative to the headrest framework body.

[0028] Specifically, in the embodiment, the locking member is a clasp spring 10, the locking member is a bolt 11, and the end portions of the left pushing plate slide rods 4 and the right pushing plate slide rods 5 are provided with clasp spring grooves (not shown) for cooperation with the clasp springs to realize fixation.

[0029] In the embodiment, the headrest framework body 1 is provided with a control module (also referred to as an ECU module or an ECU controller, not shown), which is used to control the action of the front compressed gas driving parts and the rear compressed gas driving parts, and to control the front-rear direction adjustment position of the headrest through the control module; the front compressed gas driving parts and the rear compressed gas driving parts are air cylinders or air bags, preferably air bags.

[0030] Specifically, when the front and rear compressed gas driving elements are air cylinders, the bases of the air cylinders are fixed on the headrest framework body 1, and the driving ends are fixedly connected with the front and rear push plates 2 and 3. When the air cylinder on the front side extends, the air cylinder on the rear side retracts, and at this time, the front and rear push plates 2 and 3 move forward as a whole relative to the headrest framework body 1. When the air cylinder on the front side retracts, the air cylinder on the rear side extends, and at this time, the front and rear push plates 2 and 3 move backward as a whole relative to the headrest framework body 1.

[0031] When the front and rear compressed gas driving elements are air bags, the air bags 6 are fixed on the headrest framework body 1, and the air bags 6 are connected with the air pump through the air pipes 7. The air pipes 7 are provided with air valves (not shown) and air pressure detection modules (not shown), and the air valves and the air pressure detection modules are electrically connected with the control module. The control module controls the air pump and the air valves according to the data monitored by the air pressure detection modules. When it is needed to move the front and rear push plates 2 and 3 backward as a whole relative to the headrest framework body 1, at this time, the control module controls the air pump to inflate the air bags on the rear side of the headrest framework body 1, and at the same time, the air bags on the front side of the headrest framework body 1 are extruded and deflated during the backward movement of the front push plate 2, thereby compensating the displacement. When it is needed to move the front and rear push plates 2 and 3 forward as a whole relative to the headrest framework body 1, at this time, the control module controls the air pump to inflate the air bags on the front side of the headrest framework body 1, and at the same time, the air bags on the rear side of the headrest framework body 1 are extruded and deflated during the forward movement of the rear push plate 2, thereby compensating the displacement, and adjusting the position of the headrest in the front-rear direction.

[0032] Further, in the embodiment, the air bags 6 on the front side of the headrest framework body 1 are fixed on the headrest framework body 1 through double-sided adhesive tapes 14, and the outer side surfaces are butted against the front push plates 2. The air bags 6 on the rear side of the headrest framework body 1 are fixed on the air bag trays 15 through double-sided adhesive tapes 14, and the outer side surfaces are butted against the rear push plates 3. The air bag trays 15 are fixed on the headrest framework body 1 through bolts.

[0033] Further, in the embodiment, the air pump is arranged on the backrest framework, and the air pipes 7 extend out from the upper end after passing through the inner hole of the headrest rod 8 and are connected with the air bags 6. The upper end of the headrest rod 8 is provided with an air pipe gasket 16 to prevent the air pipes 7 from being damaged at the position where the air pipes 7 contact the headrest rod 8.

[0034] In the embodiment, the headrest framework body 1 is provided with a Z-direction lifting mechanism 12 below, the fixed end of the Z-direction lifting mechanism 12 is fixed on the backrest framework 13, the headrest rod 8 of the headrest framework body 1 passes through the headrest guide sleeve 9 fixed on the backrest framework, the lower end is connected with the movable end of the Z-direction lifting mechanism 12, and the position of the headrest framework body 1 in the Z-direction is controlled through the Z-direction lifting mechanism 12.

[0035] Specifically, in the embodiment, the Z-direction lifting mechanism 12 is driven by a lead screw motor, the movable end of the Z-direction lifting mechanism 12 is provided with two plug-in parts 121 matched with the headrest rod 8 to realize plug-in, and the outer ring of the plug-in part is provided with locking springs 122 matched with the headrest rod 8 to realize locking.

[0036] The above is the specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the technical field can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A four-way headrest frame structure driven by compressed gas, characterized by, The headrest framework structure uses compressed gas as the driving force for the movement of the headrest in the front-rear direction of the vehicle body, comprising a headrest framework body, the front and rear sides of the headrest framework body are respectively provided with front and rear compressed gas driving members, the front and rear compressed gas driving members act after inputting compressed gas, the outer sides of the front and rear compressed gas driving members are respectively provided with front and rear push plates, left and right push plate slide rods pass through the left and right sides of the front push plate, the headrest framework body and the rear push plate in sequence, the end portions are fixed by locking members, the front push plate is fixed with the left and right push plate slide rods by fasteners, the front and rear push plates are driven by the front and rear compressed gas driving members to move forward or backward as a whole relative to the headrest framework body.

2. A four-way headrest framework structure driven by compressed gas according to claim 1, wherein The headrest framework body is provided with a control module, and the front-rear direction adjustment position of the headrest is controlled by the control module.

3. A four-way headrest framework structure driven by compressed gas according to claim 1, wherein The front and rear compressed gas driving members are air cylinders or air bags; the locking members are clamping springs, the locking members are bolts, and the end portions of the left and right push plate slide rods are provided with clamping spring grooves for cooperation with the clamping springs to realize fixation.

4. The four-way headrest framework structure driven by compressed gas according to claim 1, wherein A Z-direction lifting mechanism is arranged below the headrest framework body, the fixed end of the Z-direction lifting mechanism is fixed on the backrest framework, the headrest rod of the headrest framework body passes through the headrest guide sleeve fixed on the backrest framework, the lower end is connected with the movable end of the Z-direction lifting mechanism, and the position of the headrest framework body in the Z-direction is controlled by the Z-direction lifting mechanism.

5. A four-way headrest framework structure driven by compressed gas according to claim 3, wherein The base of the air cylinder is fixed on the headrest framework body, the driving end is fixed with the front or rear push plate, when the air cylinder on the front side extends, the air cylinder on the rear side retracts, at this time, the front and rear push plates move forward as a whole relative to the headrest framework body; when the air cylinder on the front side retracts, the air cylinder on the rear side extends, at this time, the front and rear push plates move backward as a whole relative to the headrest framework body.

6. A four-way headrest framework structure driven by compressed gas according to claim 3, wherein The air bag is fixed on the headrest framework body, the air bag is connected with the air pump through the air guide pipe, the air guide pipe is provided with an air valve and an air pressure detection module, the air valve and the air pressure detection module are electrically connected with the control module, the control module controls the air pump and the air valve according to the data monitored by the air pressure detection module.

7. A four-way headrest framework structure driven by compressed gas according to claim 4, wherein The Z-direction lifting mechanism is driven by a lead screw motor, the movable end of the Z-direction lifting mechanism is provided with two plug-in parts for cooperation with the headrest rod to realize plug-in, and the outer ring of the plug-in part is provided with a locking spring for cooperation with the headrest rod to realize locking.

8. A four-way headrest framework structure driven by compressed gas according to claim 6, wherein The air bag on the front side of the headrest framework body is fixed on the headrest framework body by double-sided tape, and the outer side surface is butted with the front push plate; the air bag on the rear side of the headrest framework body is fixed on the air bag tray by double-sided tape, and the outer side surface is butted with the rear push plate, and the air bag tray is fixed on the headrest framework body by bolts.

9. The four-way headrest framework structure driven by compressed gas according to claim 6, wherein The air pump is arranged on the backrest framework, and the air guide pipe extends from the upper end after passing through the inner hole of the headrest rod and is connected with the air bag.

10. The four-way headrest framework structure driven by compressed gas according to claim 7, wherein The upper end of the headrest rod is provided with an air pipe gasket.

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