A bracket with multi-angle adjustment locking structure

Abstract

The present application discloses a bracket with a multi-angle adjustable locking structure applied to the field of sofa brackets. The application enables the user to flip and adjust multiple sofa modules to a suitable use angle according to needs through the cooperation between the sofa modules, the adjustment shaft and the locking mechanism. At this time, the user can directly sit on the air cushion of the sofa module. At this time, the air cushion is pressurized and part of its air pressure is transmitted to the annular airbag. The annular airbag is affected by the air pressure of the air cushion and expands in the air cavity, driving the locking gear to move axially into the locking gear groove, thereby achieving the purpose of locking the sofa module so that it does not rotate relative to the adjustment shaft. The present invention can be quickly adjusted at multiple angles and utilizes the user's own gravity to achieve the purpose of self-locking. The user can unlock the module by standing up. The use is convenient and simple, suitable for use in public places, has market prospects, and is suitable for promotion and application.

Description

Technical Field

[0001] The present application relates to the field of sofa brackets, and in particular to a bracket with a multi-angle adjustable locking structure. Background Art

[0002] What makes sofas in public spaces different from sofas for civilian use is that they are used by a diverse group of people. In order to suit different groups of people, sofas in public spaces are often designed to be connected in a modular way: they can be spliced ​​together for collective use, or they can be disassembled into different single seats for separate use.

[0003] In addition, sofas in public spaces pay more attention to service life and safety of use, so most of them will abandon comfortable cushions and be made into a seat shape.

[0004] This type of public sofa has a single shape, no adjustability and self-locking function, and cannot meet the needs of different groups of people. Therefore, we propose a bracket with a multi-angle adjustable locking structure to solve the above problems. Summary of the invention

[0005] The purpose of the present application is to design a sofa bracket, which can meet the function of multi-angle adjustment, and can use the user's gravity to achieve the function of self-locking after adjustment and self-unlocking after not in use. Compared with the prior art, a bracket with a multi-angle adjustment locking structure is provided, through an adjustment shaft and a plurality of sofa modules that are evenly spaced and rotatably connected to the adjustment shaft, bases are fixed at both ends of the adjustment shaft, and a bearing ring matching the adjustment shaft is fixed inside the sofa module. The adjustment shaft is fixed with a limit ring on both sides of the bearing ring, and the limit ring is used to limit the displacement of the sofa module in the axial direction of the adjustment shaft;

[0006] Both sides of the sofa module are provided with execution chambers matching with the limit rings, an air chamber is provided between the two opposite sides of the execution chambers, an annular air bag is provided in the air chamber, and the seat surface of the sofa module is fixed with an air cushion, which is connected with the annular air bag;

[0007] A locking mechanism is also provided in the execution chamber, and the locking mechanism includes a slip ring slidably connected in the execution chamber, a locking gear is fixed on the outer side of the circumference of the slip ring, a locking gear groove meshing with the locking gear is provided on the inner side of the circumference of the limit ring, and a plurality of limit through holes are evenly distributed at equal angles on the clamping wall of the execution chamber and the air chamber, a limit sliding rod matching the limit through hole is fixed on one side of the slip ring, one end of the plurality of limit sliding rods extends through the limit through hole and is fixed with the execution ring, and a tensioning spring is also clamped and fixed between the slip ring and the opposite side of the limit ring.

[0008] In actual use, the user can select a suitable number of sofa modules according to his or her own use needs, and flip and adjust multiple sofa modules to a suitable use angle. At this time, the user can directly sit on the air cushion of the sofa module. At this time, the air cushion is pressurized and part of its air pressure is transmitted to the annular airbag. The annular airbag is affected by the air pressure of the air cushion and expands in the air cavity, thereby successively pushing the execution ring, the limit slide rod, and the sliding ring to perform a displacement action that overcomes the elastic force of the tensioning spring, and drives the locking gear to move axially into the locking gear groove, thereby achieving the purpose of locking the sofa module so that it does not rotate relative to the adjustment shaft. The present invention can be quickly adjusted at multiple angles and uses the user's own gravity to achieve the purpose of self-locking. The user can unlock the door by standing up. It is convenient and simple to use, suitable for use in public places, has market prospects, and is suitable for promotion and application.

[0009] Furthermore, the tension spring has an elastic force that drives the slip ring away from the limit ring, and the elastic force of the tension spring is greater than the total air pressure strength of the annular airbag and the air cushion in an unpressurized state.

[0010] Furthermore, when the tension spring is in a free state, the two slip rings are close to each other to a minimum distance, and at this time, the total axial length of the two locking gears is not greater than the relative distance between the two locking gear grooves.

[0011] Furthermore, both the single-tooth side of the locking gear and the single-groove side of the locking gear groove are provided with an introduction groove, and the groove angle of the introduction groove is forty-five degrees.

[0012] Furthermore, the annular airbag and the air cushion are both wear-resistant rubber structures, and the elastic coefficient of the air cushion is smaller than the elastic coefficient of the annular airbag.

[0013] Furthermore, the sofa module is a 7-shaped hard structure, the sofa module has a backrest-shaped surface and a stool-shaped surface, and the air cushions are respectively arranged at the seat parts of the backrest-shaped surface and the stool-shaped surface.

[0014] Furthermore, two ratchet rings are symmetrically fixed on both sides of the sofa module. The ratchet rings are coaxially arranged with the adjustment shaft, and the ratchet rings between two adjacent sofa modules are meshed.

[0015] Furthermore, the ratchet portion of the ratchet ring is an elastic and wear-resistant rubber structure. When two adjacent sofa modules rotate relative to each other, when the rotation direction is the positive direction, the ratchet portions of the two ratchet rings are oppositely aligned, and the resistance generated by the ratchet portions of the two ratchet rings is greater than the friction resistance when a single sofa module rotates around the adjustment axis.

[0016] Furthermore, when two adjacent sofa modules rotate relative to each other, when the rotation direction is in the opposite direction, the ratchet parts of the two ratchet rings are aligned smoothly, and the resistance generated by the ratchet parts of the two is smaller than the friction resistance when a single sofa module rotates around the adjustment axis.

[0017] Furthermore, a spline groove is provided on the inner side of the circumference of the slip ring, and a spline shaft matching the spline groove is provided on the portion of the bearing ring in the execution cavity.

[0018] Compared with the prior art, the advantages of this application are:

[0019] (1) The present invention cooperates with each other through the sofa module with air cushion, bearing ring, air cavity, execution cavity, limit through hole, the adjustment shaft with limit ring, locking gear groove, tension spring, and the locking mechanism with slip ring, locking gear, execution ring, limit slide rod, and spline groove. In actual use, the user can select a suitable number of sofa modules according to his own use needs, and flip and adjust multiple sofa modules to a suitable use angle. At this time, the user can directly sit on the air cushion of the sofa module. At this time, the air cushion is pressurized and part of its air pressure is transmitted to the annular airbag. The annular airbag is affected by the air pressure of the air cushion and expands in the air cavity, thereby successively pushing the execution ring, the limit slide rod, and the slip ring to make a displacement action to overcome the elastic force of the tension spring, and driving the locking gear to move axially into the locking gear groove, thereby achieving the purpose of locking the sofa module so that it does not rotate relative to the adjustment shaft. The present invention can be quickly adjusted at multiple angles and use the user's own gravity to achieve the purpose of self-locking. The user can unlock the sofa module by standing up. The use is convenient and simple, suitable for use in public places, has market prospects, and is suitable for promotion and application.

[0020] (2) The structural design of the locking gear and the locking gear groove with the introduction groove reduces the friction resistance when the locking gear approaches the locking gear groove and enters the locking gear groove, making the displacement and engagement action of the locking gear smoother and more effective.

[0021] (3) By designing the elastic coefficients of the annular airbags and air cushions, when a single air cushion of the same sofa module is pressurized, its air pressure preferentially enters the annular airbag with a large elastic coefficient, thereby effectively meeting the execution pressure of the locking mechanism, making the locking action timely and effective.

[0022] (4) By designing a ratchet ring with an elastic and wear-resistant rubber structure at the ratchet part, when the sofa module is not locked, by flipping the sofa module in the positive direction, multiple adjacent sofa modules can be driven to flip synchronously, thereby achieving the purpose of synchronously adjusting multiple sofa modules. When some sofa modules are already occupied, the sofa modules can be flipped in the reverse direction to achieve the purpose of local adjustment in a small range. The functions are diverse, which increases the applicability of the present invention in public places.

[0023] (5) The structural design of the spline groove and the spline shaft limits the circumferential movement of the sliding ring bearing ring. The limit through hole and the limit slide rod cooperate to ensure the safety of the sofa module when the locking gear and the locking gear groove are locked. This effectively improves the limiting stability of the sliding ring circumferential operation, increases the structural strength, and increases the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front structure of this application;

[0025] Figure 2 It is a side structural schematic diagram of this application;

[0026] Figure 3 This is a schematic diagram of the exploded structure of the sofa module and the adjustment shaft proposed in this application;

[0027] Figure 4 This is a schematic diagram of the exploded structure of the internal component structure of the sofa module proposed in this application;

[0028] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the sofa module proposed in this application;

[0029] Figure 6 This is a schematic diagram of the structure of the adjustment shaft and the limit ring proposed in this application;

[0030] Figure 7 It is a structural schematic diagram of the locking mechanism proposed in this application;

[0031] Figure 8 It is a schematic diagram of a partial cross-sectional structure of this application;

[0032] Fig. 9 for Figure 8 A schematic diagram of the enlarged structure of the middle part A;

[0033] Fig.10 A schematic diagram showing the comparison of the states of the airbag in the present application when in the adjustment state and the locking state;

[0034] Fig.11 Schematic diagram of the structure of the ratchet ring proposed in this application.

[0035] Description of the numbers in the figure:

[0036] Base 1, sofa module 2, air cushion 21, bearing ring 22, air cavity 23, execution cavity 24, limit through hole 25, adjustment shaft 3, limit ring 31, locking gear groove 32, tensioning spring 33, ratchet ring 4, locking mechanism 5, slip ring 51, locking gear 52, execution ring 53, limit slide rod 54, spline groove 55, annular airbag 6. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0038] Embodiment 1:

[0039] This application discloses a bracket with a multi-angle adjustable locking structure. Figure 1-11 , including an adjustment shaft 3 and a plurality of sofa modules 2 equidistantly divided and rotatably connected to the adjustment shaft 3, bases 1 are fixed at both ends of the adjustment shaft 3, a bearing ring 22 matching the adjustment shaft 3 is fixed inside the sofa module 2, and a limiting ring 31 is fixed on both sides of the bearing ring 22 of the adjustment shaft 3, and the limiting ring 31 is used to limit the displacement of the sofa module 2 in the axial direction of the adjustment shaft 3;

[0040] Both sides of the sofa module 2 are provided with execution chambers 24 matching with the limiting rings 31, and an air chamber 23 is provided between the two opposite sides of the execution chambers 24, and an annular air bag 6 is provided in the air chamber 23. The seat surface of the sofa module 2 is fixed with an air cushion 21, and the air cushion 21 is connected with the annular air bag 6.

[0041] A locking mechanism 5 is also provided in the execution chamber 24, and the locking mechanism 5 includes a slip ring 51 slidably connected in the execution chamber 24, a locking gear 52 is fixed to the outer circumferential side of the slip ring 51, and a locking gear groove 32 meshing with the locking gear 52 is provided on the inner circumferential side of the limit ring 31. A plurality of limit through holes 25 are evenly distributed at equal angles on the clamping wall of the execution chamber 24 and the air chamber 23, a limit slide rod 54 matching the limit through hole 25 is fixed to one side of the slip ring 51, one end of the plurality of limit slide rods 54 extends through the limit through hole 25 and is fixed to the execution ring 53, and a tensioning spring 33 is also clamped and fixed between the side opposite to the slip ring 51 and the limit ring 31.

[0042] The present invention cooperates with each other among the sofa module 2 with the air cushion 21, the bearing ring 22, the air cavity 23, the execution cavity 24, the limiting through hole 25, the adjustment shaft 3 with the limiting ring 31, the locking gear groove 32, the tensioning spring 33, and the locking mechanism 5 with the sliding ring 51, the locking gear 52, the execution ring 53, the limiting slide rod 54, and the spline groove 55. In actual use, the user can select a suitable number of sofa modules 2 according to his own use needs, and turn over and adjust multiple sofa modules 2 to a suitable use angle. At this time, the user can directly sit on the air cushion 21 of the sofa module 2. At this time, the air cushion 21 is compressed and its part The partial air pressure is transmitted to the annular airbag 6, and the annular airbag 6 is affected by the air pressure of the air cushion 21, and expands in the air cavity 23, thereby successively pushing the execution ring 53, the limit slide rod 54, and the slide ring 51 to perform displacement actions that overcome the elastic force of the tension spring 33, and drives the locking gear 52 to displace axially into the locking gear groove 32, thereby achieving the purpose of locking the sofa module 2 so that it does not rotate relative to the adjustment shaft 3. The present invention can be quickly adjusted at multiple angles and uses the user's own gravity to achieve the purpose of self-locking. The user can unlock the door by standing up. It is convenient and simple to use, suitable for use in public places, has market prospects, and is suitable for promotion and application.

[0043] See also Figure 1-11 In this embodiment, the tensioning spring 33 has an elastic force that drives the slip ring 51 away from the limit ring 31. The elastic force of the tensioning spring 33 is greater than the total air pressure strength of the annular airbag 6 and the air cushion 21 in the unpressurized state. When the tensioning spring 33 is in a free state, the two slip rings 51 are close to the minimum spacing. At this time, the total axial length of the two locking gears 52 is not greater than the relative spacing between the two locking gear grooves 32. The single tooth side of the locking gear 52 and the single groove side of the locking gear groove 32 are both provided with an introduction groove, and the groove angle of the introduction groove is forty-five degrees.

[0044] The structural design of the locking gear 52 and the locking gear groove 32 with the introduction groove reduces the friction resistance when the locking gear 52 approaches the locking gear groove 32 and enters the locking gear groove 32, making the displacement and engagement of the locking gear 52 smoother and more effective.

[0045] For details, please refer to Figure 1-11 The annular airbag 6 and the air cushion 21 are both wear-resistant rubber structures. The elastic coefficient of the air cushion 21 is smaller than the elastic coefficient of the annular airbag 6. The sofa module 2 is a 7-shaped hard structure. The sofa module 2 has a backrest surface and a flat stool surface. The air cushion 21 is respectively arranged on the seat parts of the backrest surface and the flat stool surface.

[0046] By designing the elastic coefficients of the annular airbag 6 and the air cushion 21, when a single air cushion 21 of the same sofa module 2 is pressurized, its air pressure preferentially enters the annular airbag 6 with a large elastic coefficient, thereby effectively meeting the execution pressure of the locking mechanism 5, making the locking action timely and effective.

[0047] For details, please refer to Figure 1-11 Two ratchet rings 4 are symmetrically fixed on both sides of the sofa module 2. The ratchet rings 4 are coaxially arranged with the adjustment shaft 3. The ratchet rings 4 between two adjacent sofa modules 2 are meshed. The ratchet parts of the ratchet rings 4 are elastic and wear-resistant rubber structures. When two adjacent sofa modules 2 rotate relative to each other, when the rotation direction is the positive direction, the ratchet parts of the two ratchet rings 4 are oppositely matched, and the resistance generated by the ratchet parts of the two is greater than the friction resistance when a single sofa module 2 rotates around the adjustment shaft 3. When the rotation direction is the reverse direction, the ratchet parts of the two ratchet rings 4 are forward matched, and the resistance generated by the ratchet parts of the two is less than the friction resistance when a single sofa module 2 rotates around the adjustment shaft 3.

[0048] By designing the ratchet ring 4 with an elastic and wear-resistant rubber structure at the ratchet part, when the sofa module 2 is not locked, by flipping the sofa module 2 in the positive direction, multiple adjacent sofa modules 2 can be driven to flip synchronously, thereby achieving the purpose of synchronously adjusting multiple sofa modules 2. When some sofa modules 2 are already occupied, the sofa modules 2 can be flipped and adjusted in the reverse direction to achieve the purpose of local adjustment in a small range. The functions are diverse, which increases the applicability of the present invention in public places.

[0049] For details, please refer to Figure 7-10 A spline groove 55 is provided on the inner side of the circumference of the slip ring 51 , and a spline shaft matching the spline groove 55 is provided on the portion of the bearing ring 22 in the execution chamber 24 .

[0050] Through the structural design of the spline groove 55 and the spline shaft, the circumferential movement of the slip ring 51 around the bearing ring 22 is limited. The limit cooperation between the limit through hole 25 and the limit slide rod 54 ensures the safety of the sofa module 2 when the locking gear 52 and the locking gear groove 32 are locked, which effectively improves the limiting stability of the circumferential operation of the slip ring 51, increases the structural strength, and increases the service life.

[0051] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and its improved conception, which should be covered by the protection scope of the present application.

Claims

1. A bracket with a multi-angle adjustable locking structure, comprising an adjusting shaft (3) and a plurality of sofa modules (2) equidistantly spaced and rotatably connected to the adjusting shaft (3), wherein bases (1) are fixed to both ends of the adjusting shaft (3), characterized in that: The sofa module (2) is provided with a bearing ring (22) matched with the adjustment shaft (3) fixed therein, and the adjustment shaft (3) is fixed with limit rings (31) on both sides of the bearing ring (22), and the limit rings (31) are used to limit the displacement movement of the sofa module (2) in the axial direction of the adjustment shaft (3); Both sides of the sofa module (2) are provided with execution chambers (24) matching with the limiting rings (31); an air chamber (23) is provided between the two opposite sides of the execution chambers (24); an annular air bag (6) is provided in the air chamber (23); an air cushion (21) is fixed to the seat surface of the sofa module (2); and the air cushion (21) is connected to the annular air bag (6); A locking mechanism (5) is also provided in the execution chamber (24), and the locking mechanism (5) comprises a slip ring (51) slidably connected in the execution chamber (24), a locking gear (52) is fixed on the outer circumference of the slip ring (51), a locking gear groove (32) meshing with the locking gear (52) is provided on the inner circumference of the limit ring (31), a plurality of limit through holes (25) are evenly distributed at equal angles on the clamping wall of the execution chamber (24) and the air chamber (23), a limit sliding rod (54) matching the limit through hole (25) is fixed on one side of the slip ring (51), one end of the plurality of limit sliding rods (54) extends through the limit through hole (25) and is fixed with the execution ring (53), and a tension spring (33) is also clamped and fixed between the side opposite to the limit ring (31) and the slip ring (51).

2. The bracket with a multi-angle adjustable locking structure according to claim 1, characterized in that: The tension spring (33) has an elastic force for driving the slip ring (51) away from the limit ring (31), and the elastic force of the tension spring (33) is greater than the total air pressure strength of the annular airbag (6) and the air cushion (21) in an unpressurized state.

3. The bracket with a multi-angle adjustable locking structure according to claim 2, characterized in that: When the tension spring (33) is in a free state, the two slip rings (51) are close to each other to a minimum distance, and at this time, the total axial length of the two locking gears (52) is not greater than the relative distance between the two locking gear grooves (32).

4. The bracket with a multi-angle adjustable locking structure according to claim 1, characterized in that: The single tooth side of the locking gear (52) and the single groove side of the locking gear groove (32) are both provided with an introduction groove, and the groove angle of the introduction groove is forty-five degrees.

5. The bracket with a multi-angle adjustable locking structure according to claim 1, characterized in that: The annular airbag (6) and the air cushion (21) are both made of wear-resistant rubber structures, and the elastic coefficient of the air cushion (21) is smaller than the elastic coefficient of the annular airbag (6).

6. The bracket with a multi-angle adjustable locking structure according to claim 1, characterized in that: The sofa module (2) is a 7-shaped hard structure, and has a backrest-shaped surface and a stool-shaped surface. The air cushion (21) is respectively arranged at the seat part of the backrest-shaped surface and the stool-shaped surface.

7. The bracket with a multi-angle adjustable locking structure according to claim 1, characterized in that: Two ratchet rings (4) are symmetrically fixed on both sides of the sofa module (2); the ratchet rings (4) are coaxially arranged with the adjustment shaft (3); and the ratchet rings (4) between two adjacent sofa modules (2) are meshed.

8. The bracket with a multi-angle adjustable locking structure according to claim 7, characterized in that: The ratchet portion of the ratchet ring (4) is an elastic wear-resistant rubber structure. When two adjacent sofa modules (2) rotate relative to each other, when the rotation direction is a positive direction, the ratchet portions of the two ratchet rings (4) are oppositely matched, and the resistance generated by the two ratchet portions is greater than the friction resistance when a single sofa module (2) rotates around the adjustment shaft (3).

9. The bracket with a multi-angle adjustable locking structure according to claim 7, characterized in that: When two adjacent sofa modules (2) rotate relative to each other, when the rotation direction is in the opposite direction, the ratchet parts of the two ratchet rings (4) are aligned with each other, and the resistance generated by the ratchet parts of the two ratchet rings is smaller than the friction resistance when a single sofa module (2) rotates around the adjustment shaft (3).

10. The bracket with a multi-angle adjustable locking structure according to claim 1, characterized in that: A spline groove (55) is provided on the inner side of the circumference of the slip ring (51), and a spline shaft matching the spline groove (55) is provided on the portion of the bearing ring (22) inside the execution chamber (24).

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