Sofa support and sofa

Abstract

The utility model discloses a sofa bracket and a sofa, and relates to the technical field of furniture. The lifting chair comprises a seat plate assembly, two supporting leg assemblies and a lifting mechanism, the supporting leg assembly comprises a pair of telescopic supporting legs and a cross beam; the lifting mechanism comprises at least one lifting assembly, each lifting assembly comprises a guide cylinder, a screw, a first worm gear and a first worm, the screw can slide along the inner wall of the guide cylinder, the upper end of the guide cylinder is fixedly connected with the seat plate assembly, and the lower end of the screw is fixedly connected with the cross beam; a threaded hole is formed in the first worm gear in the axial direction and is in threaded connection with the screw, the lower end face of the guide cylinder abuts against the upper surface of the first worm gear, and the first worm gear is in threaded connection with the first worm. The telescopic supporting leg assembly and the lifting mechanism are adopted, the lifting mechanism is of a worm and gear structure, the worm rotates to drive the worm gear to ascend and descend along the screw so as to drive the supporting leg to stretch out and draw back, meanwhile, the worm can be driven manually or electrically, the structure is simple, and adjustment is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of furniture, in particular to a sofa bracket and a sofa. Background Art

[0002] Sofa is a commonly used furniture. Traditional sofas often have a relatively fixed shape and structure, and their height does not change. However, for people of different heights, the fixed height of the sofa makes it difficult for people to find a suitable sitting posture, and the sitting feeling is poor. In addition, sofas with fixed structures are difficult to be used with a variety of other furniture, such as sofas are difficult to coordinate with coffee tables, which is not convenient for dining, working, etc.

[0003] The existing Chinese utility model patent with authorization announcement number CN219556772U discloses a lifting sofa. By understanding the specification and drawings, it can be known that the scheme uses two hydraulic cylinders on the fixed seat to cooperate with two hydraulic rods to drive two support plates to move respectively, and the two support plates drive the seat plate to move, and the seat plate drives two groups of support columns to slide in two groups of through holes in the two support bases, thereby adjusting the height of the sofa.

[0004] However, this solution has a complex structure and is heavy, which increases storage and transportation costs. In addition, the lifting and adjustment using a hydraulic cylinder is slow and inconvenient. Utility Model Content

[0005] The purpose of the utility model is to provide a sofa stand, which is provided with a telescopic leg assembly and a lifting mechanism, wherein the lifting mechanism adopts a worm gear structure, drives the worm gear to lift along the screw rod to achieve leg extension and retraction, has a simple structure and is easy to adjust, thereby solving the problem of complex structure and inconvenient adjustment of existing lifting sofas. Another purpose of the utility model is to provide a sofa.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a sofa support, comprising a seat plate assembly, two leg assemblies installed below the seat plate assembly, and a lifting mechanism;

[0008] The two leg assemblies are arranged on both sides of the seat plate assembly, the leg assembly includes a pair of telescopic legs and a cross beam, the telescopic legs include a guide rod and a telescopic slide rod, the upper end of the guide rod is fixedly connected to the seat plate assembly, the telescopic slide rod can slide along the guide rod, and the two ends of the cross beam are respectively fixedly connected to the peripheral sides of the pair of telescopic slide rods;

[0009] The lifting mechanism includes at least one lifting assembly, which includes a guide cylinder, a screw, a first worm wheel and a first worm, the screw can slide along the inner wall of the guide cylinder, the upper end of the guide cylinder is fixedly connected to the seat plate assembly, and the lower end of the screw is fixedly connected to the crossbeam;

[0010] The first worm wheel has a threaded hole axially opened, the threaded hole is threadedly connected to the screw, the lower end surface of the guide cylinder abuts against the upper surface of the first worm wheel, the first worm wheel is threadedly connected to the first worm, and the first worm is connected to a driving assembly.

[0011] As a preferred technical solution of the utility model, the lifting mechanism includes two lifting assemblies, the two lifting assemblies are respectively arranged at the two leg assemblies, the two lifting assemblies are connected by a connecting shaft, and the first worm is arranged at both ends of the connecting shaft.

[0012] As a preferred technical solution of the utility model, the lifting mechanism also includes a support member, both ends of the support member are fixedly mounted on the guide cylinder, and the connecting shaft is rotatably mounted on the support member through a shaft seat.

[0013] As a preferred technical solution of the utility model, the driving component adopts a crank, and the crank is fixedly installed at one end of the connecting shaft.

[0014] As a preferred technical solution of the utility model, the driving assembly adopts a motor, a second worm wheel and a second worm. The motor is fixedly mounted on a support member, the second worm is fixedly connected to the output shaft of the motor, the second worm wheel is fixed on the connecting shaft and is concentrically arranged with the connecting shaft, and the second worm wheel is threadedly connected to the second worm.

[0015] The utility model relates to a sofa, comprising the sofa bracket.

[0016] The utility model has the following beneficial effects:

[0017] The utility model adopts a telescopic leg assembly and a lifting mechanism. The lifting mechanism adopts a worm gear structure. The worm gear rotates to drive the worm wheel to rise and fall along the screw rod, thereby driving the legs to be extended and retracted. At the same time, the worm gear can be driven manually or electrically, with a simple structure and convenient adjustment.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a structural schematic diagram of a sofa bracket of the utility model;

[0021] Figure 2 This is a structural schematic diagram of the sofa bracket of the utility model from another perspective;

[0022] Figure 3 This is a structural schematic diagram of the sofa bracket of the utility model in an upward viewing angle;

[0023] Figure 4 for Figure 3 A local enlarged schematic diagram of the middle A;

[0024] Figure 5 This is a structural schematic diagram of a sofa bracket according to another embodiment of the present invention;

[0025] Figure 6 for Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1-seat plate assembly, 2-leg assembly, 201-guide rod, 202-telescopic slide rod, 203-crossbeam, 3-driving mechanism, 301-guide cylinder, 302-screw, 303-connecting shaft, 304-first worm gear, 305-first worm, 306-support member, 307-crank handle, 308-motor, 309-second worm gear, 310-second worm. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that terms such as "end", "upper", "lower", "side", "top", "bottom", "length", "inside", and "surface" indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the present invention.

[0030] At present, most sofas have a relatively fixed shape and structure, and their height does not change. However, for people of different heights, the height of the sofa is fixed, making it difficult for people to find a suitable sitting posture and the sitting feeling is poor. In addition, a sofa with a fixed structure is difficult to be used with a variety of other furniture, such as a sofa is difficult to coordinate with a coffee table, which is inconvenient for dining, working, etc. Based on this, the present embodiment provides a sofa bracket.

[0031] See also Figure 1 and Figure 2 As shown, the sofa support comprises a seat plate assembly 1, two leg assemblies 2 installed below the seat plate assembly 1, and a lifting mechanism 3. The seat plate assembly 1 comprises a seat plate and a backrest support and an armrest support fixed on the seat plate. The support as a whole can be made of wood or metal alloy material, such as aluminum alloy.

[0032] Two leg assemblies 2 are arranged on both sides of the seat plate assembly 1. The leg assemblies 2 include a pair of telescopic legs and a crossbeam 203. The telescopic legs include a guide rod 201 and a telescopic slide rod 202. The upper end of the guide rod 201 is fixedly connected to the seat plate assembly 1. The upper end of the telescopic slide rod 202 is provided with a slide groove. The guide rod 201 can slide in the slide groove. The lower end of the telescopic slide rod 202 contacts the ground. The two ends of the crossbeam 203 are respectively fixedly connected to the peripheral sides of the pair of telescopic slide rods 202.

[0033] See also Figure 3-Figure 4 As shown, the lifting mechanism 3 includes two lifting assemblies, and the two lifting assemblies are respectively arranged at the two leg assemblies 2. The lifting assembly includes a guide cylinder 301, a screw rod 302, a first worm wheel 304 and a first worm rod 305. The screw rod 302 can slide along the inner wall of the guide cylinder 301. The upper end of the guide cylinder 301 is fixedly connected to the seat plate assembly 1, and the lower end of the screw rod 302 is fixedly connected to the cross beam 203. The first worm wheel 304 has a threaded hole along the axial direction. During installation, the first worm wheel 304 is sleeved on the screw rod 302 so that the threaded hole is threadedly connected to the screw rod 302. Then, the lower end surface of the guide cylinder 301 is abutted against the upper surface of the first worm wheel 304, and the first worm wheel 304 plays the main role in bearing the guide cylinder 301 and the seat plate assembly 1 above.

[0034] The first worm wheel 304 is threadedly connected to the first worm 305, and the first worm 305 of the two lifting assemblies are connected through the connecting shaft 303, and a worm structure is provided at both ends of the connecting shaft 303. Rotating the first worm 305 can drive the first worm wheel 304 to move up and down along the screw 302.

[0035] In addition, the lifting mechanism 3 further comprises a support member 306 , both ends of which are fixedly mounted on the guide cylinder 301 , and the connecting shaft 303 is rotatably mounted on the support member 306 via a shaft seat.

[0036] The coupling 303 is connected with a driving assembly.

[0037] In a possible implementation of this embodiment, the driving assembly adopts a crank 307, which is fixedly mounted on one end of the connecting shaft 303. When the height of the sofa needs to be adjusted, the crank 307 is turned, and the first worm 305 at both ends of the connecting shaft 303 can drive the first worm wheel 304 to rotate. While the first worm wheel 304 rotates, it will rise and fall along the screw rod 302. When the first worm wheel 304 rises along the screw rod 302, the guide cylinder 301 is lifted upward, that is, the seat plate assembly 1 is driven to rise. Conversely, the seat plate assembly 1 will be driven to fall, thereby achieving the height adjustment of the sofa.

[0038] In another possible implementation of this embodiment, please refer to Figure 5 and Figure 6 As shown, the driving assembly adopts a motor 308, a second worm wheel 309, and a second worm 310. The motor 308 drives the lifting and lowering, which is more efficient and labor-saving. Specifically, the motor 308 is fixedly mounted on the support member 306, the second worm 310 is fixedly connected to the output shaft of the motor 308, the second worm wheel 309 is fixed on the connecting shaft 303 and is arranged concentrically with the connecting shaft 303, and the second worm wheel 309 is threadedly connected to the second worm 310. The motor 308 rotates forward or reversely, driving the connecting shaft 303 to rotate forward and reversely, so as to adjust the height of the seat, and the adjustment is convenient.

[0039] The present embodiment further provides a sofa, including the above-mentioned sofa bracket, wherein the seat panel assembly 1 is coated with a soft material, and a shielding curtain is hung below the seat panel assembly 1 to meet the requirements of aesthetics and practicality.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A sofa stand, characterized in that: It comprises a seat plate assembly (1), two leg assemblies (2) installed below the seat plate assembly (1), and a lifting mechanism (3); The two leg assemblies (2) are arranged on both sides of the seat plate assembly (1), the leg assemblies (2) include a pair of telescopic legs and a cross beam (203), the telescopic legs include a guide rod (201) and a telescopic slide rod (202), the upper end of the guide rod (201) is fixedly connected to the seat plate assembly (1), the telescopic slide rod (202) can slide along the guide rod (201), and the two ends of the cross beam (203) are respectively fixedly connected to the peripheral sides of the pair of telescopic slide rods (202); The lifting mechanism (3) comprises at least one lifting assembly, the lifting assembly comprising a guide cylinder (301), a screw (302), a first worm wheel (304) and a first worm (305), the screw (302) being able to slide along the inner wall of the guide cylinder (301), the upper end of the guide cylinder (301) being fixedly connected to the seat plate assembly (1), and the lower end of the screw (302) being fixedly connected to the crossbeam (203); The first worm gear (304) has a threaded hole in the axial direction, the threaded hole is threadedly connected to the screw (302), the lower end surface of the guide cylinder (301) abuts against the upper surface of the first worm gear (304), the first worm gear (304) is threadedly connected to the first worm (305), and the first worm (305) is connected to a driving assembly.

2. A sofa support according to claim 1, characterized in that: The lifting mechanism (3) comprises two lifting assemblies, the two lifting assemblies are respectively arranged at the two leg assemblies (2), the two lifting assemblies are connected via a connecting shaft (303), and the first worm (305) is arranged at both ends of the connecting shaft (303).

3. A sofa support according to claim 2, characterized in that: The lifting mechanism (3) further comprises a support member (306), both ends of which are fixedly mounted on the guide cylinder (301), and the connecting shaft (303) is rotatably mounted on the support member (306) via a shaft seat.

4. A sofa support according to claim 3, characterized in that: The driving assembly adopts a crank (307), and the crank (307) is fixedly mounted on one end of the connecting shaft (303).

5. The sofa support according to claim 3, characterized in that: The driving assembly adopts a motor (308), a second worm wheel (309), and a second worm (310); the motor (308) is fixedly mounted on a support member (306); the second worm (310) is fixedly connected to an output shaft of the motor (308); the second worm wheel (309) is fixed on a connecting shaft (303) and is arranged concentrically with the connecting shaft (303); and the second worm wheel (309) is threadedly connected to the second worm (310).

6. A sofa, characterized in that: It comprises a sofa bracket as described in any one of claims 1 to 5.

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