An electric retractable sofa for retracting a stand

Abstract

The utility model discloses a kind of electric telescopic sofa for telescopic stand, belong to telescopic stand technical field, including cushion, the both sides of cushion are fixedly connected with armrest, the one end of cushion is equipped with backrest, armrest includes fixed part and sliding part connected in the top surface of fixed part, the top surface of fixed part is inclined plane, sliding part is connected with the drive assembly of driving it along inclined plane sliding, the both ends of backrest are connected with two armrests respectively through connecting piece, connecting piece includes vertically fixedly connected first flat plate and second flat plate, first flat plate is fixedly connected with backrest, second flat plate is rotatably connected with pivot on fixed part, second flat plate is equipped with the vertical hole of strip shape above pivot, slidingly connected with transmission rod in vertical hole of strip shape, transmission rod is fixedly connected with sliding part.The utility model uses the above structure a kind of electric telescopic sofa for telescopic stand, can realize automatic telescopic folding and unfolding, easy to operate.

Description

Technical Field

[0001] This utility model belongs to the field of retractable grandstand technology, and in particular relates to an electric retractable sofa for retractable grandstands. Background Technology

[0002] In public spaces such as stadiums, conference centers, theaters, and multi-functional exhibition halls, retractable grandstands are a core facility for flexible space utilization, allowing for quick switching between spectator capacity and open space modes according to usage needs. As users' demands for user experience increase, the traditional hard seats in retractable grandstands are no longer sufficient to meet comfort requirements, and sofa-like seats with comfortable seating are gradually becoming the preferred choice.

[0003] The existing retractable grandstand seating structure has the following problems when in use: most retractable grandstands still use manual or semi-electric retraction and folding methods, which are cumbersome to operate, require multiple people to work together, have low efficiency in retraction, folding and unfolding, and are labor-intensive.

[0004] To solve the above problems, there is a need for a new type of electrically retractable sofa for retractable stands. Utility Model Content

[0005] The purpose of this invention is to provide an electric retractable sofa for retractable stands, which can automatically retract, fold, and unfold, and is easy to operate.

[0006] To achieve the above objectives, this utility model provides an electrically retractable sofa for retractable stands, including a seat cushion, armrests fixedly connected to both sides of the seat cushion, and a backrest at one end of the seat cushion. Each armrest includes a fixed part and a sliding part slidably connected to the top surface of the fixed part. The top surface of the fixed part is an inclined plane whose height gradually decreases from the end near the backrest to the end away from the backrest. The sliding part is connected to a drive assembly that drives it to slide along the inclined plane. Both ends of the backrest are respectively connected to the two armrests through connectors. Each connector includes a first plate and a second plate fixedly connected vertically. The first plate is fixedly connected to the backrest, and the second plate is rotatably connected to a pivot located on the fixed part. The second plate has an elongated vertical hole located above the pivot, and a transmission rod is slidably connected in the elongated vertical hole. The transmission rod is fixedly connected to the sliding part.

[0007] Preferably, the drive assembly includes an electric push rod, which is fixedly connected to the inner frame of the fixed part. A transmission component is connected to the slider of the electric push rod, and the top end of the transmission component is fixedly connected to the inner frame of the sliding part.

[0008] Preferably, the transmission component includes a right-angled plate and a connecting block. One flat plate of the right-angled plate is fixedly connected to the bottom surface of the slider by bolts. The top end of the other flat plate of the right-angled plate extends into the internal skeleton of the sliding part and is inserted into the insertion hole on the connecting block. The connecting block is fixedly connected to the internal skeleton of the sliding part.

[0009] Preferably, a guide assembly is provided between the fixed part and the sliding part. The guide assembly includes a guide rail and a slide rod. The guide rail is fixedly connected to the inclined surface and is arranged along the length direction of the inclined surface. The slide rod is fixedly connected to the bottom surface of the sliding part and is slidably connected in the guide groove on the guide rail.

[0010] Preferably, the hole connecting the second plate to the rotating shaft is a connecting hole, and the second plate is provided with an arc-shaped groove centered on the connecting hole. A limit rod is slidably connected in the arc-shaped groove, and the limit rod is fixedly connected to the fixing part.

[0011] Preferably, the top surface of the armrest at the end away from the backrest is provided with a storage groove.

[0012] Therefore, the electric retractable sofa for retractable stands of this utility model, which adopts the above-described structure, has the following beneficial effects:

[0013] 1. The drive assembly drives the sliding part to slide along the inclined surface of the fixed part, which in turn drives the transmission rod to move. The sliding rod drives the backrest to rotate around the pivot, thereby realizing the folding and unfolding of the electric retractable sofa. The whole process requires no manual intervention, has a high degree of automation, and is easy to operate.

[0014] 2. The transmission components facilitate the connection and separation between the power source (electric push rod) and the sliding part, thereby facilitating inspection and maintenance;

[0015] 3. Use guide components to increase the stability of the sliding part moving on the inclined surface of the fixed part;

[0016] 4. The use of the arc groove and the limiting rod can guide the backrest's flipping action, increasing the stability of the backrest when flipping. The limiting rod can also bear the weight of the backrest together with the pivot, reducing the probability of the pivot bending and deforming.

[0017] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of an electrically retractable sofa for retractable grandstands according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of the armrest of an electric retractable sofa for retractable stands according to the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the armrest of an embodiment of an electric retractable sofa for retractable stands according to the present invention.

[0021] Figure 4 This is a schematic diagram of the structure of a drive assembly in an electric retractable sofa for retractable stands according to this utility model.

[0022] In the diagram: 1. Seat cushion; 2. Armrest; 201. Fixing part; 202. Sliding part; 3. Backrest; 4. Drive assembly; 41. Electric push rod; 42. Transmission component; 421. Right-angle curved plate; 422. Connecting block; 423. Insertion hole; 5. Connecting component; 6. Rotating shaft; 7. Long strip vertical hole; 8. Transmission rod; 9. Guide assembly; 91. Guide rail; 92. Slide rod; 10. Arc groove; 11. Limiting rod; 12. Storage groove; 13. Slider. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example

[0026] Reference Figures 1-4As shown, this embodiment provides an electrically retractable sofa for retractable stands, including a seat cushion 1, armrests 2 fixedly connected to both sides of the seat cushion 1, and a backrest 3 at one end of the seat cushion 1. The armrests 2 include a fixed part 201 and a sliding part 202 slidably connected to the top surface of the fixed part 201. The top surface of the fixed part 201 is an inclined plane whose height gradually decreases from the end near the backrest 3 to the end away from the backrest 3. The sliding part 202 is connected to a drive assembly 4 that drives it to slide along the inclined plane. The two ends of the backrest 3 are respectively connected to the two armrests 2 via connectors 5. The connectors 5 include a first plate and a second plate vertically fixedly connected. The first plate is fixedly connected to the backrest 3, in this embodiment by bolts. The second plate is rotatably connected to a pivot 6 located on the fixed part 201. The pivot 6 realizes the rotatable connection between the second plate and the fixed part 201, thereby realizing the rotatable connection between the backrest 3 and the armrests 2. The second plate is provided with an elongated vertical hole 7 located above the rotating shaft 6. A transmission rod 8 is slidably connected inside the elongated vertical hole 7, and the transmission rod 8 is fixedly connected to the sliding part 202.

[0027] In use, the drive assembly 4 drives the sliding part 202 to slide along the slope. When the drive assembly 4 drives the sliding part 202 to slide downward along the slope, the transmission rod 8 moves downward with the sliding part 202. The transmission rod 8 applies a force to the elongated vertical hole 7 and slides along the elongated vertical hole 7, causing the second plate, connector 5, and backrest 3 to flip downward, thus realizing the folding of the electric retractable sofa. When the drive assembly 4 drives the sliding part 202 to slide upward along the slope, the transmission rod 8 moves upward with the sliding part 202. The transmission rod 8 applies a force to the elongated vertical hole 7 and slides along the elongated vertical hole 7, causing the second plate, connector 5, and backrest 3 to flip upward, thus realizing the unfolding of the electric retractable sofa.

[0028] In a further preferred embodiment, the drive assembly 4 includes an electric push rod 41, which is fixedly connected to the inner frame of the fixed part 201. A transmission component 42 is connected to the slider 13 of the electric push rod 41, and the top end of the transmission component 42 is fixedly connected to the inner frame of the sliding part 202.

[0029] In use, the switch of the electric push rod 41 is connected to the controller. The controller controls the start and stop of the electric push rod 41. After the electric push rod 41 is started, the slider 13 on the electric push rod 41 may move upward or downward along the length of the inclined plane, thereby driving the transmission component 42 to move synchronously, and finally driving the sliding part 202 to move synchronously.

[0030] Furthermore, the transmission component 42 includes a right-angled plate 421 and a connecting block 422. One flat plate of the right-angled plate 421 is fixedly connected to the bottom surface of the bolt slider 13. The top end of the other flat plate of the right-angled plate 421 extends into the internal frame of the sliding part 202 and is inserted into the insertion hole 423 on the connecting block 422. The connecting block 422 is fixedly connected to the internal frame of the sliding part 202.

[0031] In use, the connection design between the right-angle bent plate 421 and the slider 13 increases the strength of the right-angle bent plate 421. The connection design between the right-angle bent plate 421 and the connecting block 422 facilitates the disassembly of the right-angle bent plate 421 and the connecting block 422, while also enabling the transmission from the slider 13 to the sliding part 202.

[0032] In a further preferred embodiment, a guide assembly 9 is provided between the fixed part 201 and the sliding part 202. The guide assembly 9 includes a guide rail 91 and a slide rod 92. The guide rail 91 is fixedly connected to the inclined surface and is arranged along the length direction of the inclined surface. The slide rod 92 is fixedly connected to the bottom surface of the sliding part 202 and is slidably connected in the guide groove on the guide rail 91.

[0033] In use, two guide components 9 can be set, with the two guide components 9 located on both sides of the right-angle bent plate 421. When the sliding part 202 slides relative to the fixed part 201, the stability of the sliding part 202 is increased with the cooperation of the slide rod 92 and the guide groove.

[0034] In a further preferred embodiment, the hole connecting the second plate to the rotating shaft 6 is a connecting hole. The second plate is provided with an arc-shaped groove 10 centered on the connecting hole. A limiting rod 11 is slidably connected in the arc-shaped groove 10, and the limiting rod 11 is fixedly connected to the fixing part 201.

[0035] When in use, the arc groove 10 and the limiting rod 11 work together to guide the flipping of the backrest 3, increasing the stability of the backrest 3 when flipping. The limiting rod 11 can also bear the weight of the backrest 3 together with the rotating shaft 6, reducing the probability of the rotating shaft 6 bending and deforming.

[0036] In a further optimized design, a storage groove 12 is provided on the top surface of the end of the armrest 2 away from the backrest 3.

[0037] When in use, the storage recess 12 allows spectators in the stands to conveniently place items such as water.

[0038] Therefore, the electric retractable sofa for retractable stands of this invention, which adopts the above structure, can realize automatic retraction, folding and unfolding, and is simple to operate.

[0039] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An electrically retractable sofa for retracting a grandstand, comprising a seat cushion (1), armrests (2) fixedly connected to both sides of the seat cushion (1), and a backrest (3) provided at one end of the seat cushion (1), characterized in that: The armrest (2) includes a fixed part (201) and a sliding part (202) slidably connected to the top surface of the fixed part (201). The top surface of the fixed part (201) is an inclined surface whose height gradually decreases from one end near the backrest (3) to the other end away from the backrest (3). The sliding part (202) is connected to a drive assembly (4) that drives it to slide along the inclined surface. The two ends of the backrest (3) are respectively connected to the two armrests (2) through connectors (5). The connectors (5) include a first plate and a second plate that are vertically fixedly connected. The first plate is fixedly connected to the backrest (3). The second plate is rotatably connected to a rotating shaft (6) located on the fixed part (201). The second plate is provided with an elongated vertical hole (7) located above the rotating shaft (6). A transmission rod (8) is slidably connected in the elongated vertical hole (7). The transmission rod (8) is fixedly connected to the sliding part (202).

2. The electrically retractable sofa for retractable stands according to claim 1, characterized in that: The drive assembly (4) includes an electric push rod (41), which is fixedly connected to the inner frame of the fixed part (201). A transmission component (42) is connected to the slider (13) of the electric push rod (41), and the top end of the transmission component (42) is fixedly connected to the inner frame of the sliding part (202).

3. The electrically retractable sofa for retractable stands according to claim 2, characterized in that: The transmission component (42) includes a right-angle bent plate (421) and a connecting block (422). One plate of the right-angle bent plate (421) is fixedly connected to the bottom surface of the slider (13) by bolts. The top end of the other plate of the right-angle bent plate (421) extends into the internal skeleton of the sliding part (202) and is inserted into the insertion hole (423) on the connecting block (422). The connecting block (422) is fixedly connected to the internal skeleton of the sliding part (202).

4. The electrically retractable sofa for retractable stands according to claim 3, characterized in that: A guide assembly (9) is provided between the fixed part (201) and the sliding part (202). The guide assembly (9) includes a guide rail (91) and a slide rod (92). The guide rail (91) is fixedly connected to the inclined surface and is arranged along the length direction of the inclined surface. The slide rod (92) is fixedly connected to the bottom surface of the sliding part (202) and is slidably connected in the guide groove on the guide rail (91).

5. The electrically retractable sofa for retractable stands according to claim 1, characterized in that: The hole connecting the second plate to the rotating shaft (6) is a connecting hole. The second plate is provided with an arc groove (10) with the connecting hole as the center. A limit rod (11) is slidably connected in the arc groove (10). The limit rod (11) is fixedly connected to the fixing part (201).

6. The electrically retractable sofa for retractable stands according to claim 1, characterized in that: The top surface of the armrest (2) away from the backrest (3) is provided with a storage groove (12).

Images