Office chair with detachable headrest

Abstract

The utility model relates to the technical field of office chairs with detachable headrests, and discloses an office chair with a detachable headrest, which is used for mounting and bearing an office chair headrest part, and further comprises an office chair headrest connecting part arranged on the office chair headrest part and the office chair, wherein the office chair headrest connecting part at least comprises a pneumatic sealing locking point which is used for keeping the relative position of the office chair headrest part and the office chair under the action of air pressure, and is also provided with a controller for releasing the sealing of the pneumatic sealing locking point; and after the airtight connection is released through the controller, the headrest part of the office chair is relatively separated from the office chair. Compared with the prior art, the utility model has the advantages of small volume and more attractive appearance, and no abnormal sound is generated by adopting the contact of the flexible component and the rigid component.

Description

TECHNICAL FIELD

[0001] The utility model relates to detachable headrest's office chair technical field especially with detachable headrest's office chair. BACKGROUND

[0002] The existing patent discloses a quick-release office chair headrest, belongs to the technical field of office chairs, and comprises a seat plate, a backrest is fixed on the back wall of the seat plate, a connecting seat is arranged on the back wall of the backrest, a connecting cavity is formed in the connecting seat, a connecting plate is inserted into the connecting cavity, and a headrest is fixed at one end of the connecting plate.

[0003] However, the above-mentioned patent structure has the following problems: on the one hand, the transverse volume is large, which is not beautiful, and it is easy to knock when passing by; and the frequent disassembly is easy to cause loosening, and the metal parts are easy to slide when the head relies on them, which produces irritating noise and greatly affects comfort; and the installation position of the headrest cannot be adjusted.

[0004] In order to improve the above-mentioned problems or deficiencies, the present case is proposed. INVENTION CONTENTS

[0005] An office chair with a detachable headrest comprises:

[0006] The office chair is used for mounting a headrest part of the office chair, and further comprises an office chair headrest connecting part arranged on the office chair headrest part and the office chair, wherein the office chair headrest connecting part comprises at least one pneumatic sealing locking point for maintaining the relative positions of the office chair headrest part and the office chair under the action of air pressure, and a controller for unsealing the pneumatic sealing locking point is further arranged, and the office chair headrest part and the office chair are relatively separated after the air-tight connection is unsealed by the controller.

[0007] Preferably, the office chair headrest connecting part comprises a headrest fixed plug rod fixed on the office chair headrest part and a headrest limiting plug cylinder fixed on the office chair, wherein the headrest fixed plug rod is inserted into the headrest limiting plug cylinder and is in sealed connection with the headrest limiting plug cylinder, and the office chair headrest connecting part further comprises a press-type spring air valve fixed at the bottom of the headrest limiting plug cylinder, and when the press-type spring air valve is pressed, the lower end of the headrest limiting plug cylinder is communicated with the outside so that the headrest limiting plug cylinder is in unsealed state.

[0008] Preferably, the headrest fixed plug rod and the headrest limiting plug cylinder are symmetrically provided with at least two groups, so that the stability is effectively improved.

[0009] Preferably, the lower end of the headrest fixed plug rod is fixedly provided with a piston rubber body in sliding sealed cooperation with the inner wall of the headrest limiting plug cylinder, and the inner wall of the headrest limiting plug cylinder is coated with lubricating grease for ensuring smooth sliding of the piston rubber body.

[0010] Preferably, the piston rubber body is provided with at least two groups in vertical interval, so that the torque formed by the headrest fixed plug rod between the two piston rubber bodies can effectively improve the stability of the headrest fixed plug rod relative to the headrest limiting plug cylinder.

[0011] Preferably, the headrest fixed plug rod is welded or bolted to the hard part of the office chair headrest part, and the headrest limiting plug cylinder is bolted or welded to the hard part of the back of the office chair.

[0012] The advantages and positive effects of the utility model are:

[0013] 1. Compared with the prior art, the utility model is small in size, more beautiful, and does not produce abnormal sound in contact of the flexible part and the rigid part.

[0014] 2. The utility model is convenient to adjust and use and can adjust the height within a certain range, and is more practical. DRAWINGS

[0015] The utility model will be further described below in combination with the drawings and embodiments.

[0016] Fig. 1 It is the installation structure schematic view of the utility model;

[0017] Fig. 2 It is the internal structure schematic view of the utility model.

[0018] Markings in the drawings: 10, office chair; 11, office chair headrest part; 12, office chair headrest connecting part; 13, headrest fixed plug rod; 14, headrest limiting plug cylinder; 15, press-type spring air valve; 16, piston rubber body. CONCRETE IMPLEMENTATION

[0019] The utility model will be further described in detail in combination with the drawings. These drawings are all simplified schematic diagrams, and only schematically show the basic structure of the utility model, so they only show the components related to the utility model.

[0020] The utility model embodiment will be further described in combination with the drawings:

[0021] As Figs. 1-2 Indicated, a kind of office chair with detachable headrest of the utility model includes;

[0022] Office chair 10, for installing bearing office chair headrest part 11, still include the office chair headrest connecting portion 12 of being arranged at the office chair headrest part 11 and the office chair 10, wherein the office chair headrest connecting portion 12 at least includes one pneumatic seal locking point for keeping the relative position of the office chair headrest part 11 and the office chair 10 under the action of air pressure, still be equipped with a controller for the de-sealing of the pneumatic seal locking point, the office chair headrest part 11 is separated from the office chair 10 by the controller after de-airtight connection.

[0023] Preferably, the office chair headrest connecting portion 12 includes headrest fixed insertion rod 13 fixed on the office chair headrest part 11 and headrest limiting insertion cylinder 14 fixed on the office chair 10, wherein the headrest fixed insertion rod 13 is inserted into the headrest limiting insertion cylinder 14 and is in sealed connection with it, the office chair headrest connecting portion 12 also includes press-type spring air valve 15 fixed at the bottom of the headrest limiting insertion cylinder 14, when the press-type spring air valve 15 is pressed, the lower end of the headrest limiting insertion cylinder 14 is in communication with the outside, so that the headrest limiting insertion cylinder 14 is in a de-sealed state.

[0024] Preferably, the headrest fixed insertion rod 13 and the headrest limiting insertion cylinder 14 are symmetrically arranged on the left and right sides, and at least two groups are provided, so that the stability is effectively improved.

[0025] Preferably, the lower end of the headrest fixed insertion rod 13 is fixedly provided with a piston rubber body 16 that is in sliding sealing cooperation with the inner wall of the headrest limiting insertion cylinder 14, and a lubricating grease is applied to the inner wall of the headrest limiting insertion cylinder 14 to ensure smooth sliding of the piston rubber body 16.

[0026] Preferably, the piston rubber body 16 is arranged at least in two groups vertically, so that the torque formed by the headrest fixed insertion rod 13 between the two piston rubber bodies 16 can effectively improve the stability of the headrest fixed insertion rod 13 relative to the headrest limiting insertion cylinder 14.

[0027] Preferably, the headrest fixing rod 13 is fixed to the hard part of the headrest part 11 of the office chair by welding or screwing, and the headrest limiting plug 14 is fixed to the hard part of the back of the office chair 10 by screwing or welding.

[0028] In the embodiment, when the position of the headrest part 11 of the office chair needs to be moved, the press-type spring air valve 15 is pressed to make the inner lower half cavity of the headrest limiting plug 14 unsealed, so that the headrest fixing rod 13 can be slid up and down, and when the press-type spring air valve 15 is released, the inner lower half cavity of the headrest limiting plug 14 is sealed, and the headrest part 11 of the office chair is fixed under the action of air pressure (it should be particularly pointed out that "fixed" here means that the headrest part 11 of the office chair can maintain a relative distance from the office chair 10 in a traditional normal working environment, and it is well known that gas has compressibility, and when an extra downward force is intentionally applied to the headrest part 11 of the office chair, the headrest part 11 of the office chair may move slightly within a certain range, but it will recover after the external force is removed).

[0029] It should be emphasized that the embodiments of the utility model are illustrative rather than restrictive, and therefore the utility model is not limited to the embodiments described in the specific embodiments, and any other embodiments derived from the technical solution of the utility model by those skilled in the art also belong to the protection scope of the utility model.

Claims

1. An office chair with a detachable headrest; characterized in that: The invention relates to an office chair (10) for mounting a headrest part (11), further comprising a headrest connecting part (12) arranged on the headrest part (11) and the office chair (10), wherein the headrest connecting part (12) comprises at least one air-tight sealing point for keeping the relative position of the headrest part (11) and the office chair (10) under air pressure, and a controller for unsealing the air-tight sealing point, and the headrest part (11) is separated from the office chair (10) after the air-tight sealing point is unsealed by the controller. The headrest connecting part (12) comprises a headrest fixed plug (13) fixed on the headrest part (11) and a headrest limiting plug-in cylinder (14) fixed on the office chair (10), wherein the headrest fixed plug (13) is inserted into the headrest limiting plug-in cylinder (14) and is in air-tight connection with it, and the headrest connecting part (12) further comprises a press-type spring air valve (15) fixed at the bottom of the headrest limiting plug-in cylinder (14), and when the press-type spring air valve (15) is pressed, the lower end of the headrest limiting plug-in cylinder (14) is in communication with the outside, so that the headrest limiting plug-in cylinder (14) is in an unsealed state.

2. The office chair with detachable headrest according to claim 1, wherein: The headrest fixed plug (13) and the headrest limiting plug-in cylinder (14) are symmetrically arranged in at least two groups.

3. The office chair with detachable headrest according to claim 2, wherein: The lower end of the headrest fixed plug (13) is fixedly provided with a piston rubber body (16) which is in sliding sealing cooperation with the inner wall of the headrest limiting plug-in cylinder (14), and the inner wall of the headrest limiting plug-in cylinder (14) is coated with lubricating grease.

4. The office chair with detachable headrest according to claim 3, wherein: The piston rubber body (16) is arranged in at least two groups vertically.

5. The office chair with detachable headrest according to claim 4, characterized in that: The headrest fixed plug (13) is welded or bolted to the hard part of the headrest part (11), and the headrest limiting plug-in cylinder (14) is bolted or welded to the hard part of the back of the office chair (10).

6. The office chair with detachable headrest according to claim 5, wherein: ​

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