Locking structure for seat and seat

Abstract

The utility model discloses a locking structure for a seat and discloses a seat with the locking structure for the seat, the locking structure for the seat comprises a first connecting seat, a second connecting seat and a fastener, the first connecting seat is provided with a mounting groove, the second connecting seat is provided with a mounting part, the mounting part is inserted into the mounting groove, and the fastener is inserted into the mounting groove. The fastener penetrates through the mounting part and is in threaded connection with the first connecting seat, the axis of the fastener is inclined to the sunken direction of the mounting groove, and the fastener applies acting force in the sunken direction of the mounting groove and acting force in the direction perpendicular to the sunken direction of the mounting groove to the first connecting seat; the second connecting base cannot drive the fastener to move, the second connecting base can be stably installed on the first connecting base, the traditional mode that a plurality of bolts are punched to assemble the armrest assembly and / or the chair back assembly can be abandoned, and an operator can assemble the armrest assembly and / or the chair back assembly conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a locking structure for seats and the seat. Background Art

[0002] As is known to all, existing seats generally include a base, an armrest assembly and a backrest assembly. The armrest assembly and / or the backrest assembly are detachably connected to the base by bolting. When assembling the armrest assembly and / or the backrest assembly, the operator needs to use multiple bolts to stably install the armrest assembly and / or the backrest assembly on the base, which is inconvenient for the operator to assemble the armrest assembly and / or the backrest assembly. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a locking structure for a seat, which can facilitate the assembly of an armrest assembly and / or a seat back assembly.

[0004] The utility model also provides a seat with the locking structure for the seat.

[0005] According to the first aspect of the embodiment of the utility model, the locking structure for a seat includes a first connecting seat, a second connecting seat and a fastener, the first connecting seat is provided with a mounting groove, the second connecting seat is provided with a mounting portion, the mounting portion is inserted into the mounting groove, the fastener is passed through the mounting portion and is threadedly connected to the first connecting seat, and the axis of the fastener is inclined to the recessed direction of the mounting groove.

[0006] The locking structure for a seat according to the first aspect of the present utility model has at least the following beneficial effects:

[0007] The first connecting seat is arranged on the base of the seat, and the first connecting seat is provided with a threaded hole. The second connecting seat can be arranged on the armrest assembly and / or the backrest assembly of the seat, and the second connecting seat is provided with a through hole. When assembling the armrest assembly and / or the backrest assembly, the mounting portion is aligned with the mounting groove, and then the mounting portion is inserted into the mounting groove. The fastener is passed through the through hole and threadedly matched with the threaded hole. The fastener can apply a force along the recessed direction of the mounting groove and a force along the recessed direction perpendicular to the mounting groove to the first connecting seat. When the mounting portion has a movement tendency to exit the mounting groove, since the fastener can apply a force along the recessed direction perpendicular to the mounting groove to the first connecting seat, the second connecting seat cannot drive the fastener to move. The second connecting seat can be stably installed on the first connecting seat, and the traditional method of assembling the armrest assembly and / or the backrest assembly by driving multiple bolts can be abandoned, which can facilitate the operator to assemble the armrest assembly and / or the backrest assembly.

[0008] According to some embodiments of the present invention, the angle between the axis of the fastener and the recessed direction of the mounting groove is α, and α satisfies: 10°≤α≤80°.

[0009] According to some embodiments of the present invention, a limiting structure is provided between the first connecting seat and the second connecting seat, and the limiting structure is used to limit the rotation of the second connecting seat relative to the first connecting seat.

[0010] According to some embodiments of the utility model, the limiting structure includes a limiting strip provided on the side wall of the installation groove and a limiting groove provided on the installation portion, and the limiting strip is accommodated in the limiting groove and can abut against the side wall of the limiting groove.

[0011] According to some embodiments of the utility model, the limiting strips are provided on opposite sides of the installation groove.

[0012] According to some embodiments of the present invention, along a recessed direction perpendicular to the mounting groove, a cross section of the mounting groove and a cross section of the mounting portion are both non-circular structures, and the cross section of the mounting groove matches the cross section of the mounting portion.

[0013] According to some embodiments of the present invention, the width of the mounting groove gradually decreases along the recessed direction of the mounting groove.

[0014] According to some embodiments of the present invention, a positioning structure is provided between the first connecting seat and the second connecting seat, and the positioning structure is used to position the depth of the mounting portion inserted into the mounting groove.

[0015] According to some embodiments of the present invention, the positioning structure includes a positioning protrusion provided on the side wall of the mounting groove and a positioning groove provided on the mounting portion, and the positioning protrusion is accommodated in the positioning groove and can abut against the side wall of the positioning groove.

[0016] The seat according to the second aspect of the present invention comprises a base, an armrest assembly, a backrest assembly and the locking structure for the seat as described in the above embodiments, wherein the first connecting seat is arranged on the base, and the second connecting seat is arranged on the armrest assembly and / or the backrest assembly.

[0017] The seat according to the second aspect of the present invention has at least the following beneficial effects:

[0018] The first connecting seat is arranged on the base of the seat, and the first connecting seat is provided with a threaded hole. The second connecting seat can be arranged on the armrest assembly and / or the backrest assembly of the seat, and the second connecting seat is provided with a through hole. When assembling the armrest assembly and / or the backrest assembly, the mounting portion is aligned with the mounting groove, and then the mounting portion is inserted into the mounting groove. The fastener is passed through the through hole and threadedly matched with the threaded hole. The fastener can apply a force along the recessed direction of the mounting groove and a force along the recessed direction perpendicular to the mounting groove to the first connecting seat. When the mounting portion has a movement tendency to exit the mounting groove, since the fastener can apply a force along the recessed direction perpendicular to the mounting groove to the first connecting seat, the second connecting seat cannot drive the fastener to move. The second connecting seat can be stably installed on the first connecting seat, and the traditional method of assembling the armrest assembly and / or the backrest assembly by driving multiple bolts can be abandoned, which can facilitate the operator to assemble the armrest assembly and / or the backrest assembly.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of a seat according to an embodiment of the utility model;

[0022] Figure 2 This is an exploded schematic diagram of a seat according to an embodiment of the present utility model;

[0023] Figure 3 A top view of a seat according to an embodiment of the present utility model;

[0024] Figure 4 for Figure 3 Sectional view along line AA;

[0025] Figure 5 A side view of a seat according to an embodiment of the present utility model;

[0026] Figure 6 for Figure 5 Sectional view along the midline BB;

[0027] Figure 7 It is a schematic diagram of the assembly of the chair back assembly and the fasteners of the embodiment of the utility model;

[0028] Figure 8 It is a schematic diagram of the assembly of the handrail assembly and the fastener of the embodiment of the utility model;

[0029] Fig. 9It is a schematic diagram of the assembly of the armrest assembly and the fastener of the embodiment of the utility model from another perspective.

[0030] Reference numerals:

[0031] The first connecting seat 100, the mounting groove 110, the limiting strip 120, the positioning protrusion 130, the threaded hole 140, the second connecting seat 200, the mounting portion 210, the limiting groove 220, the positioning groove 230, the through hole 240, the fastener 300, the base 400, the armrest assembly 500, and the chair back assembly 600. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figures 3 to 6According to the locking structure for a seat in the first embodiment of the utility model, the first connecting seat 100, the second connecting seat 200 and the fastener 300 are provided. The first connecting seat 100 is provided with a mounting groove 110, and the second connecting seat 200 is provided with a mounting portion 210. The mounting portion 210 is inserted into the mounting groove 110. The fastener 300 is passed through the mounting portion 210 and is threadedly connected to the first connecting seat 100. The axis of the fastener 300 is inclined to the concave direction of the mounting groove 110. In this way, the fastener 300 can apply a force along the concave direction of the mounting groove 110 and a force perpendicular to the mounting groove. 110 applies a force to the first connecting seat 100 in the recessed direction. When the mounting portion 210 has a tendency to exit the mounting groove 110, since the fastener 300 can apply a force to the first connecting seat 100 along the recessed direction perpendicular to the mounting groove 110, the second connecting seat 200 cannot drive the fastener 300 to move. The second connecting seat 200 can be stably installed on the first connecting seat 100, and the traditional method of assembling the armrest assembly 500 and / or the seat back assembly 600 by driving multiple bolts can be abandoned, which can facilitate the operator to assemble the armrest assembly 500 and / or the seat back assembly 600.

[0037] Specifically, the first connecting seat 100 is arranged on the base 400 of the seat, and the first connecting seat 100 is provided with a threaded hole 140, the second connecting seat 200 can be arranged on the armrest assembly 500 and / or the backrest assembly 600 of the seat, and the second connecting seat 200 is provided with a through hole 240, when assembling the armrest assembly 500 and / or the backrest assembly 600, the mounting portion 210 is aligned with the mounting groove 110, and then the mounting portion 210 is inserted into the mounting groove 110, the fastener 300 is passed through the through hole 240 and is threadedly matched with the threaded hole 140, and the fastener 300 can be applied along the recessed direction of the mounting groove 110. The force and the force along the recessed direction perpendicular to the mounting groove 110 are applied to the first connecting seat 100. When the mounting portion 210 has a tendency to exit the mounting groove 110, since the fastener 300 can apply the force along the recessed direction perpendicular to the mounting groove 110 to the first connecting seat 100, the second connecting seat 200 cannot drive the fastener 300 to move. The second connecting seat 200 can be stably installed on the first connecting seat 100, and the traditional method of assembling the armrest assembly 500 and / or the backrest assembly 600 by driving multiple bolts can be abandoned, which can facilitate the operator to assemble the armrest assembly 500 and / or the backrest assembly 600.

[0038] It should be noted that the positions of the threaded hole 140 and the through hole 240 can also be interchanged, that is, the threaded hole 140 is provided at the second connecting seat 200, and the through hole 240 is provided at the first connecting seat 100, which is not limited here.

[0039] It should be noted that the fastener 300 may be a bolt, a screw or other components, which is not limited here.

[0040] Reference Figure 4 , Figure 6 In some embodiments of the present invention, the angle between the axis of the fastener 300 and the recessed direction of the mounting groove 110 is α, and α satisfies: 10°≤α≤80°, which can improve the installation stability of the first connecting seat 100 and the second connecting seat 200.

[0041] Reference Figure 4 , Figure 6 , Figure 7 and Figure 8 In some embodiments of the utility model, a limiting structure is provided between the first connecting seat 100 and the second connecting seat 200, and the limiting structure is used to limit the rotation of the second connecting seat 200 relative to the first connecting seat 100. There is no need to additionally set up fasteners 300, which can reduce the number of fasteners 300 and improve the assembly efficiency of the seat.

[0042] Reference Figure 4 , Figure 6 , Figure 7 and Figure 8 In some embodiments of the utility model, the limiting structure includes a limiting strip 120 provided on the side wall of the mounting groove 110 and a limiting groove 220 provided on the mounting portion 210. The limiting strip 120 is accommodated in the limiting groove 220 and can abut against the side wall of the limiting groove 220. There is no need to additionally set up fasteners 300, which can improve the assembly efficiency of the seat while reducing the number of fasteners 300.

[0043] Specifically, the limit strip 120 is extended along the recessed direction of the installation groove 110, and the limit groove 220 is correspondingly extended along the recessed direction of the installation groove 110. The limit strip 120 is accommodated in the limit groove 220 and can abut against the side wall of the limit groove 220. There is no need to additionally set up fasteners 300, which can improve the assembly efficiency of the seat while reducing the number of fasteners 300.

[0044] It should be noted that the positions of the limiting strip 120 and the limiting groove 220 can also be interchanged, that is, the limiting strip 120 is arranged on the mounting portion 210, and the limiting groove 220 is arranged on the side wall of the mounting groove 110, which is not limited here.

[0045] It should be pointed out that the limiting structure can also be a structure in which a limiting pin and a limiting groove 220 cooperate. The limiting pin is arranged on the side wall of the installation groove 110, and the limiting groove 220 is arranged on the installation part 210. The limiting pin is accommodated in the limiting groove 220 and can abut against the side wall of the limiting groove 220, and can also limit the rotation of the second connecting seat 200 relative to the first connecting seat 100, which will not be described in detail here.

[0046] In some embodiments of the present invention, limiting strips 120 are disposed on opposite sides of the installation groove 110 to improve the connection stability between the first connection seat 100 and the second connection seat 200 .

[0047] Specifically, four limit bars 120 are configured, two of which are arranged on one side of the installation groove 110, and the rest are arranged on the other side opposite to the installation groove 110. Four limit grooves 220 are correspondingly configured, which can improve the connection stability of the first connecting seat 100 and the second connecting seat 200.

[0048] In some embodiments of the present invention, along a recessed direction perpendicular to the mounting groove 110 , the cross-section of the mounting groove 110 and the cross-section of the mounting portion 210 are both non-circular structures, and the cross-section of the mounting groove 110 matches the cross-section of the mounting portion 210 .

[0049] In some embodiments of the present invention, the width of the mounting groove 110 gradually decreases along the recessed direction of the mounting groove 110 , which can guide the mounting portion 210 to facilitate the insertion of the mounting portion 210 into the mounting groove 110 .

[0050] Reference Figure 6 , Fig. 9 In some embodiments of the utility model, a positioning structure is provided between the first connecting seat 100 and the second connecting seat 200, and the positioning structure is used to position the depth of the mounting portion 210 inserted into the mounting groove 110, so that the through hole 240 can be aligned with the threaded hole 140, so as to facilitate the fastener 300 to lock the first connecting seat 100 and the second connecting seat 200.

[0051] In some embodiments of the present invention, the positioning structure includes a positioning protrusion 130 provided on the side wall of the mounting groove 110 and a positioning groove 230 provided on the mounting portion 210. The positioning protrusion 130 is accommodated in the positioning groove 230 and can abut against the side wall of the positioning groove 230. It can position the depth of the mounting portion 210 inserted into the mounting groove 110 so that the through hole 240 can be aligned with the threaded hole 140, so as to facilitate the fastener 300 to lock the first connecting seat 100 and the second connecting seat 200.

[0052] Specifically, the positioning groove 230 passes through one end of the mounting portion 210 facing the bottom wall of the mounting groove 110. When the mounting portion 210 is inserted into the mounting groove 110 to a certain depth, the positioning protrusion 130 abuts against one side of the positioning groove 230 facing the bottom wall of the mounting groove 110, and can position the depth of the mounting portion 210 inserted into the mounting groove 110, so that the through hole 240 can be aligned with the threaded hole 140, so as to facilitate the fastener 300 to lock the first connecting seat 100 and the second connecting seat 200.

[0053] It should be noted that the positions of the positioning groove 230 and the positioning protrusion 130 can also be interchanged, that is, the positioning groove 230 is provided on the side wall of the installation groove 110, and the positioning protrusion 130 is provided on the installation portion 210, which is not limited here.

[0054] It is understandable that the positioning structure may also be a structure in which a positioning pin cooperates with a positioning hole, which is not limited here.

[0055] Reference Figure 1 , Figure 2 The seat according to the second aspect of the utility model comprises a base 400, an armrest assembly 500, a backrest assembly 600 and a locking structure for the seat according to the first aspect of the utility model. The first connecting seat 100 is arranged on the base 400, and the second connecting seat 200 is arranged on the armrest assembly 500 and / or the backrest assembly 600. The traditional method of assembling the armrest assembly 500 and / or the backrest assembly 600 by driving multiple bolts can be abandoned, and it can be convenient for operators to assemble the armrest assembly 500 and / or the backrest assembly 600.

[0056] Specifically, the first connecting seat 100 is arranged on the base 400 of the seat, and the first connecting seat 100 is provided with a threaded hole 140, the second connecting seat 200 can be arranged on the armrest assembly 500 and / or the backrest assembly 600 of the seat, and the second connecting seat 200 is provided with a through hole 240, when assembling the armrest assembly 500 and / or the backrest assembly 600, the mounting portion 210 is aligned with the mounting groove 110, and then the mounting portion 210 is inserted into the mounting groove 110, the fastener 300 is passed through the through hole 240 and is threadedly matched with the threaded hole 140, and the fastener 300 can be applied along the recessed direction of the mounting groove 110. The force and the force along the recessed direction perpendicular to the mounting groove 110 are applied to the first connecting seat 100. When the mounting portion 210 has a tendency to exit the mounting groove 110, since the fastener 300 can apply the force along the recessed direction perpendicular to the mounting groove 110 to the first connecting seat 100, the second connecting seat 200 cannot drive the fastener 300 to move. The second connecting seat 200 can be stably installed on the first connecting seat 100, and the traditional method of assembling the armrest assembly 500 and / or the backrest assembly 600 by driving multiple bolts can be abandoned, which can facilitate the operator to assemble the armrest assembly 500 and / or the backrest assembly 600.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A locking structure for a seat, characterized in that: include: A first connecting seat (100) is provided with a mounting groove (110); The second connecting seat (200) is provided with a mounting portion (210), and the mounting portion (210) is inserted into the mounting groove (110); The fastener (300) is inserted through the mounting portion (210) and is threadedly connected to the first connecting seat (100). The axis of the fastener (300) is arranged to be inclined with respect to the recessed direction of the mounting groove (110).

2. The locking structure for a seat according to claim 1, characterized in that: The angle between the axis of the fastener (300) and the recessed direction of the installation groove (110) is α, and α satisfies: 10°≤α≤80°.

3. The locking structure for a seat according to claim 1, characterized in that: A limiting structure is provided between the first connecting seat (100) and the second connecting seat (200), and the limiting structure is used to limit the rotation of the second connecting seat (200) relative to the first connecting seat (100).

4. The locking structure for a seat according to claim 3, characterized in that: The limiting structure comprises a limiting strip (120) provided on the side wall of the installation groove (110) and a limiting groove (220) provided on the installation portion (210); the limiting strip (120) is accommodated in the limiting groove (220) and is capable of abutting against the side wall of the limiting groove (220).

5. The locking structure for a seat according to claim 4, characterized in that: The limiting strips (120) are provided on opposite sides of the installation groove (110).

6. The locking structure for a seat according to claim 1, characterized in that: Along a recessed direction perpendicular to the mounting groove (110), the cross-section of the mounting groove (110) and the cross-section of the mounting portion (210) are both non-circular structures, and the cross-section of the mounting groove (110) and the cross-section of the mounting portion (210) match.

7. The locking structure for a seat according to claim 1, characterized in that: Along the recessed direction of the mounting groove (110), the width of the mounting groove (110) gradually decreases.

8. The locking structure for a seat according to claim 1, characterized in that: A positioning structure is provided between the first connecting seat (100) and the second connecting seat (200), and the positioning structure is used to position the depth of the mounting portion (210) inserted into the mounting groove (110).

9. The locking structure for a seat according to claim 8, characterized in that: The positioning structure comprises a positioning protrusion (130) provided on the side wall of the installation groove (110) and a positioning groove (230) provided on the installation portion (210); the positioning protrusion (130) is accommodated in the positioning groove (230) and can abut against the side wall of the positioning groove (230).

10. A seat, characterized in that: It comprises a base (400), an armrest assembly (500), a seat back assembly (600) and a locking structure for a seat as described in any one of claims 1 to 9, wherein the first connecting seat (100) is arranged on the base (400), and the second connecting seat (200) is arranged on the armrest assembly (500) and / or the seat back assembly (600).

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