Buckling type chair seat mounting structure applied to training chair

Abstract

A buckling type chair seat installation structure applied to a training chair comprises a chair frame and a chair seat, the chair seat comprises a seat body, the chair frame comprises at least two supporting rods, and buckling pieces for buckling the supporting rods and the seat body are jointly connected between the supporting rods and the seat body in an abutting mode. Compared with the prior art, the training chair has the advantages of being stable and reliable in connection and not prone to slipping in the using process, and therefore the safety of a user is guaranteed. The chair seat and the chair frame can be quickly assembled by adopting a buckling connection mode without assistance of professional tools, so that the assembling process is greatly simplified, the assembling difficulty and the assembling cost are reduced, the assembling flexibility and the assembling efficiency are improved, and meanwhile, the defect that fasteners such as traditional bolts are exposed is also avoided; therefore, the appearance aesthetic feeling of the training chair is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of training chairs, in particular to a snap-on chair seat installation structure used on a training chair. Background Art

[0002] As a basic seating item, training chairs are widely used in education and training, conference discussions and other occasions.

[0003] Traditional training chairs typically consist of three core components: a frame, seat, and backrest, all working together to provide a stable and comfortable sitting experience. The connection between the seat and frame is crucial for ensuring the chair's overall stability and durability. Bolt fastening has long been widely used for this connection due to its reliable connection.

[0004] However, despite the excellent connection strength offered by bolt fastening, practical applications have exposed some shortcomings. For example, bolt fastening requires specialized tools, which further limits the flexibility and convenience of the assembly process, increasing assembly difficulty and cost. Furthermore, the exposed bolt heads not only affect the aesthetics of the training chair but also pose a risk of corrosion damage. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a snap-on seat installation structure for a training chair.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A snap-on seat mounting structure for a training chair comprises a chair frame and a seat, wherein the seat comprises a seat body, and the chair frame comprises at least two support rods, wherein a snap-on member for snapping the support rods and the seat body together is abutted against each other, and the snap-on member is provided with at least two upper snap-on grooves and at least two lower snap-on hooks;

[0008] The support rod is provided with at least two lower buckle slots, and each lower buckle hook moves along the first direction and buckles into a lower buckle slot;

[0009] The bottom of the base body is provided with upper buckle hooks matching the number of upper buckle slots, and each upper buckle hook moves along the first direction and buckles into an upper buckle slot;

[0010] The bottom of the seat body is recessed upward to form an upper anti-slip groove, the support rod is provided with a lower anti-slip groove, the upper end of the fastening piece is protruded with an upper buckle limiting portion, and the lower end is protruded with a lower buckle limiting portion, wherein the upper buckle limiting portion is configured to be locked in the upper anti-slip groove after the lower buckle hook is buckled into the lower buckle groove to limit the lower buckle hook from moving out of the lower buckle groove along the second direction;

[0011] The lower buckle limiting portion is configured to be locked in the lower anti-disengagement slot after the upper buckle hook is buckled into the upper buckle slot to limit the upper buckle hook from moving out of the upper buckle slot along a second direction, and the first direction and the second direction are opposite.

[0012] In the present invention, the fastening piece is provided with a convex movable space that runs through from top to bottom, and a connecting arm is provided in the convex movable space. One end of the connecting arm is connected to the fastening piece, and the upper buckle limit part and the lower buckle limit part are respectively connected to the upper and lower ends of the connecting arm.

[0013] In the present invention, the two fasteners are arranged symmetrically between the left and right, and a connection limit portion is protruding downward on one side of the bottom of the fastener, and a supporting limit surface for cooperating with the inner side of the connection limit portion is provided on the support rod.

[0014] In the present invention, the upper snap hook includes an upper snap connection portion extending downward from the bottom of the seat body and an upper snap protrusion extending toward the first direction from the bottom of the upper snap connection portion, and the upper snap groove includes an upper snap inlet and an upper snap slot connected to the bottom end of the upper snap inlet, and the upper snap inlet and the upper snap slot are connected in an L shape, and the upper snap protrusion enters from the upper snap inlet and is inserted into the upper snap slot along the first direction.

[0015] In the present invention, at least one upper hook reinforcement portion extending along the second direction is protruded from one side of the upper buckle connection portion, and the upper end of the upper hook reinforcement portion is integrally connected to the base body.

[0016] In the present invention, a slot wall of the upper anti-slip slot is an upper anti-slip vertical surface, and one side of the upper buckle limiting portion is an upper buckle vertical surface for abutting against the upper anti-slip vertical surface.

[0017] In the present invention, a groove wall of the lower anti-slip groove is a lower anti-slip vertical surface, and one side of the lower buckle limiting portion is a lower buckle vertical surface for abutting against the lower anti-slip vertical surface.

[0018] In the present invention, the lower buckle hook includes a lower buckle connection portion extending downward from the bottom of the buckle assembly and a lower buckle protrusion extending from the lower buckle connection portion along a first direction, and the lower buckle groove includes a lower buckle inlet and a lower buckle slot connected to the bottom end of the lower buckle inlet, and the lower buckle inlet and the lower buckle slot are connected in an L shape, and the lower buckle protrusion enters from the lower buckle inlet and is inserted into the lower buckle slot along the first direction.

[0019] In the present utility model, an upper buckle positioning portion is provided on the upper buckle connecting portion, and an upper buckle positioning groove is provided on the buckle component corresponding to the upper buckle groove position for the upper buckle positioning portion to be inserted and positioned. When the upper buckle hook is buckled into the upper buckle groove along the first direction, the upper buckle positioning portion is inserted into the upper buckle positioning groove.

[0020] In the present invention, the top-view cross-sections of the upper buckle positioning portion and the upper buckle positioning groove are both isosceles trapezoids, and the width of the isosceles trapezoids gradually decreases along the first direction.

[0021] Beneficial effects of the present invention: The fastening components of the present invention are designed with an upper snap groove, a lower snap hook, an upper snap limiter, a lower snap limiter, and corresponding lower snap grooves, upper snap hooks, an upper anti-slip groove, and a lower anti-slip groove. These structures work together to fasten the seat and the chair frame together through the fastening components, which has the advantage of a stable and reliable connection. During the use of the training chair, it is not easy to slip, thereby ensuring the safety of the user. Moreover, the snap-fit ​​connection method does not require the assistance of professional tools, and the seat and the chair frame can be quickly assembled, which greatly simplifies the assembly process, reduces the difficulty and cost of assembly, and improves the flexibility and efficiency of assembly. At the same time, it also avoids the disadvantages of exposed fasteners such as traditional bolts, thereby improving the aesthetic appearance of the training chair. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 is a perspective view of this embodiment;

[0024] Figure 2 Schematic diagram of the installation of the support rod;

[0025] Figure 3 is a schematic diagram of a chair seat;

[0026] Figure 4 Schematic diagram of two fasteners Figure 1 ;

[0027] Figure 5 Schematic diagram of two fasteners Figure 2 ;

[0028] Figure 6 The figure is a schematic diagram of the installation of fasteners. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] Reference Figure 1-6 A snap-on seat mounting structure for a training chair includes a chair frame 1 and a seat 2, wherein the seat 2 includes a seat body 21 and a back connecting portion 22, and the back connecting portion 22 is used to connect to the chair back 100. Furthermore, the chair frame 1 includes two foot frames 11 and at least two support rods 12, wherein the foot frames 11 are formed by bending a round tube, and the foot frames 11 include a cross bracing portion 111 and foot rods formed by bending the left and right ends of the cross bracing portion 111 downward; the support rods 12 are made of square tubes, and at least two support rods 12 are arranged at intervals from left to right, and the front and rear ends of the support rods 12 are fixedly connected to the cross bracing portions 111 of the two foot frames 11 by welding.

[0033] Furthermore, the support rod 12 and the seat body 21 are commonly connected with a fastening piece 3 for fastening them together, and each support rod 12 corresponds to one fastening piece 3, the bottom side of the fastening piece 3 is pressed against the top surface of the support rod 12, and the upper side is abutted against the bottom of the seat body 21; the fastening piece 3 is provided with at least two upper snap grooves 31 and at least two lower snap hooks 32, and the upper snap grooves 31 and the lower snap hooks 32 are located on different sides of the fastening piece 3. In this embodiment, the upper snap groove 31 is located on the upper side of the fastening piece 3, and the lower snap hook 32 is located on the bottom side of the fastening piece 3.

[0034] Furthermore, the support rod 12 is provided with at least two lower snap grooves 121 arranged from front to back, and each lower snap hook 32 moves along the first direction and snaps into a lower snap groove 121 to achieve a combined connection between the support rod 12 and the fastener 3.

[0035] Furthermore, the bottom of the base body 21 is provided with upper snap hooks 23 whose number matches the upper snap grooves 31 , and each upper snap hook 23 moves along the first direction and snaps into an upper snap groove 31 to realize the combined connection between the base body 21 and the fastener 3 .

[0036] Furthermore, the bottom of the seat body 21 is recessed upward to provide an upper anti-slip groove 24, the support rod 12 is provided with a lower anti-slip groove 122, the upper end of the fastener 3 is protruded with an upper buckle limiting portion 33, and the lower end is protruded with a lower buckle limiting portion 34, wherein the upper buckle limiting portion 33 is configured to be clamped in the upper anti-slip groove 24 after the lower buckle hook 32 is buckled into the lower buckle groove 121 to limit the lower buckle hook 32 from moving out of the lower buckle groove 1 along the second direction. 21; the lower buckle limiter 34 is configured to be engaged with the lower anti-slip groove 122 after the upper buckle hook 23 is engaged with the upper buckle groove 31, thereby restricting the upper buckle hook 23 from moving out of the upper buckle groove 31 in a second direction. The first direction and the second direction are opposite. This ensures that the seat body 21 and the seat 2 are stably fastened to the fastener 3, ensuring the stability of the seat body 21 and the seat 2 after being fastened by the fastener 3, and preventing them from slipping during use. In this embodiment, the first direction is forward, and the second direction is backward.

[0037] As a preferred embodiment, the fastener 3 is provided with a convex movable space 30 that runs through from top to bottom, and a connecting arm 35 is provided in the convex movable space 30, one end of the connecting arm 35 is connected to the fastener 3, and the upper buckle limit part 33 and the lower buckle limit part 34 are respectively connected to the upper and lower ends of the connecting arm 35. This structure can not only make the upper buckle limit part 33 and the lower buckle limit part 34 connected to the fastener 3 by using the same connecting arm 35 as an integral part, but also make the upper buckle limit part 33 and the lower buckle limit part 34 constrained by the connecting arm 35 at the same time, so that the relative position between the upper buckle limit part 33 and the lower buckle limit part 34 is fixed, so that the upper buckle limit part 33 is better stuck in the upper anti-slip groove 24 and the lower buckle limit part 34 is better stuck in the lower anti-slip groove 122, ensuring the combination quality between the fastener 3, the seat 2 and the chair frame 1.

[0038] As a preferred embodiment, the two fasteners 3 are arranged symmetrically on the left and right, and a connection limit portion 36 is protruding downward on one side of the bottom of the fastener 3. The support rod 12 is provided with a supporting limit surface for cooperating with the inner side of the connection limit portion 36 to limit the position, so that a limit groove can be formed between the connection limit portions 36 on the two fasteners 3 to cooperate with the two support rods 12 to limit the left and right movement, thereby further ensuring the quality of the combination.

[0039] As a preferred embodiment, the upper snap hook 23 includes an upper snap connection portion 231 extending downward from the bottom of the base body 21 and an upper snap protrusion 232 extending toward the first direction from the bottom of the upper snap connection portion 231, and the upper snap groove 31 includes an upper snap inlet 311 and an upper snap slot 312 connected to the bottom end of the upper snap inlet 311, and the upper snap inlet 311 and the upper snap slot 312 are connected in an L shape, and the upper snap protrusion 232 enters from the upper snap inlet 311 and is inserted into the upper snap slot 312 along the first direction, thereby achieving the purpose of snapping the upper snap hook 23 into an upper snap groove 31, and at this time, lifting the base body 21 can make the upper part of the upper snap protrusion 232 rest against the top wall of the upper snap slot 312, thereby limiting the separation of the base body 21 from the fastener 3.

[0040] Furthermore, in order to improve the structural stability of the upper snap hook 23, at least one upper hook reinforcement portion 233 extending along the second direction protrudes from one side of the upper snap connection portion 231, and the upper end of the upper hook reinforcement portion 233 is integrally connected to the base body 21.

[0041] As a preferred embodiment, one groove wall of the upper anti-slip groove 24 is an upper anti-slip vertical surface, and one side of the upper buckle limit portion 33 is an upper buckle vertical surface for abutting against the upper anti-slip vertical surface, thereby limiting the upper buckle limit portion 33 from moving along the second direction out of the upper anti-slip groove 24, thereby ensuring the connection stability.

[0042] As a preferred embodiment, one groove wall of the lower anti-slip groove 122 is a lower anti-slip vertical surface, and one side of the lower buckle limiting portion 34 is a lower buckle vertical surface for abutting against the lower anti-slip vertical surface, thereby limiting the lower buckle limiting portion 34 from moving along the second direction out of the lower anti-slip groove 122 to ensure connection stability.

[0043] As a preferred embodiment, the lower buckle hook 32 includes a lower buckle connection portion 321 extending downward from the bottom of the fastener 3 and a lower buckle protrusion 322 extending from the lower buckle connection portion 321 along the first direction, and the lower buckle groove 121 includes a lower buckle inlet 1211 and a lower buckle slot 1212 connected to the bottom end of the lower buckle inlet 1211, and the lower buckle inlet 1211 and the lower buckle slot 1212 are connected in an L shape, and the lower buckle protrusion 322 enters from the lower buckle inlet 1211 and is inserted into the lower buckle slot 1212 along the first direction, thereby achieving the purpose of buckling the lower buckle hook 32 into a lower buckle groove 121. At this time, lifting the fastener 3 can make the upper part of the lower buckle protrusion 322 rest against the top wall of the lower buckle slot 1212, thereby limiting the separation of the chair frame 1 from the fastener 3.

[0044] As a preferred embodiment, the upper buckle connection portion 231 is provided with an upper buckle positioning portion 234, and the fastening member 3 is provided with an upper buckle positioning groove 37 for inserting and positioning the upper buckle positioning portion 234 at a position corresponding to the upper buckle groove 31. When the upper buckle hook 23 is buckled into the upper buckle groove 31 along the first direction, the upper buckle positioning portion 234 is inserted into the upper buckle positioning groove 37, thereby enhancing the positioning quality between the base 21 and the fastening member 3. In addition, to facilitate the insertion and positioning of the upper buckle positioning portion 234 into the upper buckle positioning groove 37, the upper buckle positioning portion 234 and the upper buckle positioning groove 37 are both isosceles trapezoidal in cross-section when viewed from above, and the width of the isosceles trapezoid gradually decreases along the first direction.

[0045] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the scope of protection of the present invention.

Claims

1. A snap-on seat mounting structure for a training chair, comprising a chair frame (1) and a seat (2), wherein the seat (2) comprises a seat body (21), and the chair frame (1) comprises at least two support rods (12), characterized in that: A fastening member (3) for fastening the support rod (12) and the seat body (21) is in contact with each other, and the fastening member (3) is provided with at least two upper fastening grooves (31) and at least two lower fastening hooks (32); At least two lower buckle slots (121) are provided on the support rod (12), and each lower buckle hook (32) moves along the first direction and buckles into a lower buckle slot (121); The bottom of the base (21) is provided with upper snap hooks (23) whose number matches the upper snap grooves (31), and each upper snap hook (23) moves along the first direction and snaps into an upper snap groove (31); The bottom of the seat body (21) is recessed upwards and provided with an upper anti-slip groove (24), the support rod (12) is provided with a lower anti-slip groove (122), the upper end of the fastening member (3) is protruded with an upper buckle limiting portion (33), and the lower end is protruded with a lower buckle limiting portion (34), wherein the upper buckle limiting portion (33) is configured to be clamped in the upper anti-slip groove (24) after the lower buckle hook (32) is buckled into the lower buckle groove (121) to limit the lower buckle hook (32) from moving along the second direction and disengaging from the lower buckle groove (121); The lower buckle limiting portion (34) is configured to be locked in the lower anti-disengagement slot (122) after the upper buckle hook (23) is buckled into the upper buckle slot (31) to limit the upper buckle hook (23) from moving out of the upper buckle slot (31) along a second direction, wherein the first direction and the second direction are opposite.

2. The snap-on seat mounting structure for a training chair according to claim 1, characterized in that: The fastening member (3) is provided with a convex movable space (30) extending from top to bottom, a connecting arm (35) is provided in the convex movable space (30), one end of the connecting arm (35) is connected to the fastening member (3), and the upper buckle limiting portion (33) and the lower buckle limiting portion (34) are respectively connected to the upper and lower ends of the connecting arm (35).

3. The snap-on seat mounting structure for a training chair according to claim 1, characterized in that: The two fastening members (3) are symmetrically arranged with each other, and a connection limit portion (36) is provided on one side of the bottom of the fastening member (3) protruding downward, and a support limit surface for cooperating with the inner side of the connection limit portion (36) is provided on the support rod (12).

4. The snap-on seat mounting structure for a training chair according to claim 1, characterized in that: The upper snap hook (23) comprises an upper snap connection portion (231) extending downward from the bottom of the seat body (21) and an upper snap protrusion (232) extending from the bottom of the upper snap connection portion (231) toward the first direction. The upper snap slot (31) comprises an upper snap inlet (311) and an upper snap slot (312) connected to the bottom end of the upper snap inlet (311). The upper snap inlet (311) and the upper snap slot (312) are connected in an L-shape. The upper snap protrusion (232) enters from the upper snap inlet (311) and is inserted into the upper snap slot (312) along the first direction.

5. The snap-on seat mounting structure for a training chair according to claim 4, characterized in that: At least one upper hook reinforcement portion (233) extending along the second direction is protruded from one side of the upper buckle connection portion (231), and the upper end of the upper hook reinforcement portion (233) is integrally connected to the base body (21).

6. The snap-on seat mounting structure for a training chair according to claim 1, characterized in that: A groove wall of the upper anti-slip groove (24) is an upper anti-slip vertical surface, and one side of the upper buckle limiting portion (33) is an upper buckle vertical surface for abutting against the upper anti-slip vertical surface.

7. The snap-on seat mounting structure for a training chair according to claim 1, characterized in that: A groove wall of the lower anti-slip groove (122) is a lower anti-slip vertical surface, and one side of the lower buckle limiting portion (34) is a lower buckle vertical surface for abutting against the lower anti-slip vertical surface.

8. The snap-on seat mounting structure for a training chair according to claim 1, characterized in that: The lower snap hook (32) comprises a lower snap connection portion (321) extending downward from the bottom of the snap assembly (3) and a lower snap protrusion (322) extending from the lower snap connection portion (321) along a first direction. The lower snap slot (121) comprises a lower snap inlet (1211) and a lower snap slot (1212) connected to the bottom end of the lower snap inlet (1211). The lower snap inlet (1211) and the lower snap slot (1212) are connected in an L-shape. The lower snap protrusion (322) enters from the lower snap inlet (1211) and is inserted into the lower snap slot (1212) along the first direction.

9. The snap-on seat mounting structure for a training chair according to claim 4, characterized in that: The upper buckle connection portion (231) is provided with an upper buckle positioning portion (234), and the buckle member (3) is provided with an upper buckle positioning groove (37) for inserting and positioning the upper buckle positioning portion (234) at a position corresponding to the upper buckle groove (31). When the upper buckle hook (23) is buckled into the upper buckle groove (31) along the first direction, the upper buckle positioning portion (234) is inserted into the upper buckle positioning groove (37).

10. The snap-on seat mounting structure for a training chair according to claim 9, characterized in that: The top-view cross-sections of the upper buckle positioning portion (234) and the upper buckle positioning groove (37) are both isosceles trapezoids, and the width of the isosceles trapezoid gradually decreases along the first direction.

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