Tea table sofa
By using slide rails, limit components and lifting components in the coffee table sofa, the multifunctional state and compact space occupation of the coffee table sofa are achieved, solving the problem of insufficient space utilization in small apartments, and improving the aesthetics and convenience of use of the product.
Patent Information
- Application Number
- CN202420752330.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-11
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-11
AI Technical Summary
The existing coffee table sofas have insufficient space utilization, especially in small apartments. Traditional coffee table sofas occupy a large space and cannot be folded and stored, which affects the living experience. In addition, the folding coffee table sofa with backrest front has problems such as inconvenient operation and poor stability.
A tea table sofa is designed, using slide rails and limit components to realize the movement and locking of the seat cushion. Combined with the lifting components to hide the tea table table board, realizing the multi-functional state of the tea table sofa and compact space occupation.
It realizes the dual functions of a coffee table sofa, with a beautiful overall shape, compact structure, small space, and reduces the volume when the coffee table is idle through hidden structure, meeting the diversity of products and the personalized needs of users.
Smart Images
Figure CN222565434U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of furniture equipment, and in particular to a coffee table sofa. Background Art
[0002] Sofas and coffee tables are common household products in our daily lives. They are often placed in the living room and used frequently. Conventional sofas and coffee tables are usually separated, with single functions and occupying a large space. As people's pursuit of personalized quality of life becomes higher and higher, sofa combinations with coffee tables have emerged. This type of coffee table sofa combines sofas and coffee tables to form a combination, which meets people's personalized needs and can also save space to a certain extent.
[0003] There are two main types of coffee table sofas: one is a modular type, where a coffee table is added between two seats. The sofa is large overall and occupies a large area of the living room. Especially for small-sized rooms with small space, if the coffee table sofa always occupies a large space and cannot be folded and stored, it will greatly affect the living experience. Another type is a foldable type with a backrest that folds forward to form a coffee table. This type of coffee table sofa has the problems of inconvenient operation and poor stability. Utility Model Content
[0004] In order to realize the hidden storage of a coffee table in a coffee table sofa and improve the aesthetics and convenience of use of the coffee table sofa, the present application provides a coffee table sofa.
[0005] The coffee table sofa provided in this application adopts the following technical solution:
[0006] A coffee table sofa comprises a base, a seat cushion and a backrest arranged on the base, the base is provided with a slide rail, the seat cushion is slidably arranged on the slide rail and can move in a direction away from the backrest, and a limit component capable of fixing and limiting the two and a driving component driving the seat cushion to move on the slide rail are provided between the base and the seat cushion;
[0007] A coffee table top is arranged on the base between the backrest and the slide rail;
[0008] The base is also provided with a receiving cavity, and a lifting component capable of driving the coffee table top to move up and down is arranged in the receiving cavity.
[0009] The coffee table sofa in the present application has two states, one is the state when the coffee table top is hidden, at this time the coffee table top cannot be seen and only the sofa function is used; the other is the state when the coffee table sofa is opened, at this time the coffee table top is exposed and the coffee table function can be used.
[0010] By adopting the above technical solution, the tea table sofa in this application combines the two traditional furniture products of tea table and sofa to form an integral furniture product, which has the dual functions of tea table and sofa, has beautiful overall shape, compact structure and small space occupation; and the tea table sofa in this application can perfectly hide the tea table top as needed by setting a special hidden structure, which meets the diversity of products and further reduces the volume of the tea table sofa when the tea table is idle. The seat cushion in this application can be moved, and the locking and movement of the seat cushion can be achieved by the limit assembly and the drive assembly, which is stable and reliable and easy to operate; the tea table top can be hidden under the seat cushion by adjusting the height through the lifting assembly, which has a compact and beautiful structure and is also easy to operate.
[0011] Optionally, the seat cushion includes a bottom frame and a soft cushion, the soft cushion is arranged on the bottom frame, guide rails are fixedly provided at the bottom of both sides of the bottom frame, there are two groups of sliding rails and they are arranged one-to-one with the two guide rails, and the guide rails are slidably arranged on the corresponding sliding rails.
[0012] By adopting the above technical solution, the bottom frame of the seat cushion cooperates with the guide rail and the slide rail to achieve guidance and limitation, thereby ensuring the stability and reliability of the seat cushion when sliding.
[0013] Optionally, the limit assembly includes a fixed seat fixed on the base and a limit block fixed on the bottom frame, and a limit hole is opened on one side of the limit block; a locking pin is arranged on the fixed seat, and the locking pin is axially slidably connected to the fixed seat and one end of the locking pin can be inserted into the limit hole.
[0014] By adopting the above technical solution, when the seat cushion slides into place, one end of the locking pin is inserted into the limiting socket of the limiting block, thereby limiting the seat cushion and preventing it from moving, thereby ensuring its stability and reliability.
[0015] Optionally, a guide groove is provided on the side of the limit block, one end of the guide groove is connected to the limit plug hole, and the other end of the guide groove extends to the end surface of the limit block to form a notch;
[0016] The other end of the locking pin is connected to an unlocking pull rope;
[0017] The fixing seat and / or the locking pin are also provided with an elastic reset member for resetting the locking pin;
[0018] When the seat cushion slides to make the limiting block and the fixing seat approach each other, one end of the locking pin can slide into the limiting plug hole through the notch of the guide groove and the guide groove.
[0019] The elastic reset member can be a coil spring or a tension spring. By adopting the above technical solution, when the seat cushion slides into place, the elastic reset member gives the locking pin an elastic force, so that one end of the locking pin is stably plugged into the limiting socket of the limiting block and will not disengage; when it is necessary to unlock the locking pin so that it is disengaged from the limiting socket of the limiting block, only external force is needed to pull the locking pin through the unlocking pull rope to overcome the elastic force of the elastic reset member. The operation is very convenient, stable and reliable. In addition, when the seat cushion is pushed back into place, one end of the locking pin can automatically slide into the limiting socket through the notch of the guide groove and the guide groove, without the need for other operating steps, which is simple and labor-saving, and has a high degree of automation.
[0020] Optionally, the limit block is arranged at one end of the bottom frame away from the backrest, and the notch of the guide groove is located on the end surface of the limit block facing the backrest; the axial direction of the locking pin and the length direction of the unlocking rope are both perpendicular to the sliding direction of the seat cushion.
[0021] By adopting the above technical solution, the unlocking rope is close to the outer edge of the base. When the coffee table sofa in the present application needs to use the coffee table top, it is convenient to manually pull the unlocking rope; and when the seat cushion slides out and returns to its position, it only needs to be pushed directly without pulling the unlocking rope. Such a layout is more scientific and reasonable, and is easy to operate.
[0022] Optionally, the driving assembly includes a wire draw box fixed on the base and a pull rod fixed on the bottom frame, and one end of the wire in the wire draw box extends toward the backrest and is connected to the pull rod.
[0023] The pull rod is arranged at one end of the bottom frame close to the backrest, and the pull box is arranged at the end close to the base. When the coffee table sofa is in a state of hiding the coffee table top, the pull wire in the pull box keeps applying tension to the pull rod on the bottom frame and the entire seat cushion; by adopting the above technical scheme, when it is necessary to move the seat cushion to open the coffee table function, it is only necessary to pull the unlocking pull rope to disengage the locking pin from the limit socket in the limit block, and the pull wire tension in the pull box can be used to automatically realize the sliding of the seat cushion, so as to conveniently and quickly raise the coffee table top and realize the multifunctional state of the coffee table sofa. The driving component for sliding out the seat cushion in the present application adopts a purely mechanical structure, which has a fast sliding speed, low cost and high stability compared to the motor structure.
[0024] Optionally, the lifting assembly includes a bottom plate fixed in the accommodating cavity and a first scissor arm, a second scissor arm, an elastic device and a gas pressure rod arranged on the bottom plate; the lower end of the first scissor arm is movably connected to the bottom plate, the upper end of the first scissor arm is rotatably connected to the lower end of the second scissor arm, and the coffee table top is arranged at the upper end of the second scissor arm;
[0025] One end of the gas pressure rod is rotatably connected to the bottom plate, and the other end of the gas pressure rod is rotatably connected to the first scissor arm and / or the second scissor arm and can push the first scissor arm and the second scissor arm to deform; the downward movement of the coffee table top can drive the gas pressure rod to swing and form a self-locking angle between the gas pressure rod and the first scissor arm and the second scissor arm;
[0026] The elastic device is vertically fixed on the bottom plate and the coffee table top can contact the upper end of the elastic device after moving downward.
[0027] By adopting the above technical solution, external force presses down the coffee table top, which can drive the first scissor arm and the second scissor arm to deform, and the scissor angle becomes larger, so as to realize the lowering of the coffee table top. In this process, the pneumatic rod swings from the inclined setting state with a large inclination angle to the horizontal state. When its inclination angle is small enough, a self-locking angle is formed between the pneumatic rod and the first scissor arm and the second scissor arm, and the fixed state is maintained; when the coffee table top needs to rise, press the coffee table top to trigger the elastic device, and the elastic device gives the coffee table top an upward force, driving the coffee table top to move upward. In this process, the pneumatic rod is driven to swing and release the self-locking angle state, and then the coffee table top is pushed to the appropriate position to continue to rise by relying on the force of the pneumatic rod. The lifting assembly and self-locking structure used for lifting the coffee table top in this application are both mechanical structures, do not require an external power supply, have a high degree of automation, and are easy to operate.
[0028] Optionally, the first scissor arm comprises a first connecting rod and a second connecting rod hinged in the middle, the lower end of the first connecting rod is rotatably connected to the bottom plate, and the lower end of the second connecting rod is provided with a first roller capable of rolling on the bottom plate;
[0029] The second scissor arm comprises a third link and a fourth link hinged in the middle, the lower end of the third link is rotatably connected to the upper end of the first link, and the lower end of the fourth link is rotatably connected to the upper end of the second link; the upper end of the third link is provided with a second roller capable of rolling on the bottom of the coffee table top; the upper end of the fourth link is rotatably connected to the bottom of the coffee table top;
[0030] The gas pressure rod is arranged obliquely and the upper end of the gas pressure rod is rotatably connected to the upper end of the first connecting rod.
[0031] By adopting the above technical solution, the scissor deformation of the first scissor arm and the second scissor arm can be achieved, so as to stably and reliably lift the coffee table top.
[0032] Optionally, a mounting block is fixedly provided at the bottom of the coffee table top, a limiting groove is provided on the side of the mounting block, and the second roller is embedded in the limiting groove;
[0033] An adjusting block is also fixedly provided at the bottom of the coffee table top, an adjusting screw is threadedly connected to the adjusting block, a limiting seat is fixedly provided at the end of the adjusting screw, the limiting seat is located in the limiting groove and can abut against the second roller.
[0034] By adopting the above technical solution, when the coffee table top is raised, as the first scissor arm and the second scissor arm are deformed, the second pulley at the upper end of the third connecting rod will roll in the limit groove, and by rotating the adjusting screw, the limit seat will be driven to move in the limit groove, thereby limiting the movement range of the second pulley, so that the rising height of the coffee table top can be controlled, so that the required height of the coffee table top can be adjusted according to personal needs, thereby improving the user experience.
[0035] Optionally, the first scissor arms and the second scissor arms are each provided in two groups, the two groups of the first scissor arms are arranged opposite to each other, and the two groups of the second scissor arms are arranged opposite to each other; the elastic device and the gas pressure rod are both provided between the two groups of the first scissor arms;
[0036] A rotating shaft is rotatably connected between the four pairs of ends corresponding to the two groups of the first scissor arms and between the four pairs of ends corresponding to the two groups of the second scissor arms. A connecting rod is also provided between the upper ends of the two first connecting rods in the two groups of the first scissor arms, and the upper end of the pneumatic rod is connected to the middle part of the connecting rod.
[0037] By adopting the above technical solution, the two sets of first scissor arms and second scissor arms ensure the distribution and balance of the force on the coffee table top, while improving the stability and reliability of the lifting and lowering of the coffee table top.
[0038] Optionally, the periphery of the lifting assembly is also covered with a cover shell made of soft material, the upper end of the cover shell is connected to the coffee table top, and the lower end of the cover shell is connected to the base.
[0039] By adopting the above technical solution, the lifting component can be closed to prevent debris from entering the accommodating cavity and causing the lifting component to get stuck, and also to prevent dust, water, etc. from entering the accommodating cavity and being cleaned; thereby improving the reliability and service life of the entire coffee table sofa.
[0040] Optionally, at least four supporting feet are fixedly provided at the bottom of the base, and the supporting feet are detachably fixed to the base by bolts.
[0041] By adopting the above technical solution, the coffee table sofa is ensured to have a certain height, be moisture-proof and waterproof, and improve comfort.
[0042] In summary, the present application includes at least one of the following beneficial technical effects:
[0043] 1. The coffee table sofa in this application combines the two traditional furniture products of coffee table and sofa to form an integral furniture product, which has the dual functions of coffee table and sofa, has beautiful overall shape, compact structure and occupies little space.
[0044] 2. The coffee table sofa in the present application can perfectly hide the coffee table top as needed by setting a special hidden structure, which meets the diversity of products and further reduces the volume of the coffee table sofa when the coffee table is idle.
[0045] 3. The seat cushion in this application can be moved, and the locking and movement of the seat cushion can be achieved through the limit assembly and the drive assembly, which is stable, reliable and easy to operate; the coffee table top can adjust the height through the lifting assembly and can be hidden under the seat cushion. The structure is compact and beautiful, and the operation is also very convenient.
[0046] 4. In the present application, when the coffee table sofa needs to use the coffee table top, the unlocking rope can be manually pulled very conveniently, and the pulling force of the wire in the pull box can be used to automatically realize the sliding of the seat cushion. When the seat cushion returns to its position, it can be directly pushed without pulling the unlocking rope. Such a layout is more scientific and reasonable, and easy to operate.
[0047] 5. In the present application, structures such as an adjustment block, an adjustment screw and a limit seat are provided. By rotating the adjustment screw, the limit seat is driven to move in the limit groove, thereby limiting the movement range of the second pulley, and the rising height of the coffee table top can be controlled, so that the required height of the coffee table top can be adjusted according to personal needs, thereby improving the user experience.
[0048] 6. The seat cushion sliding drive assembly and the lifting and self-locking structure of the coffee table top in this application all adopt a purely mechanical structure, which is low in cost, easy to use and highly stable compared to other electric or pneumatic structures. BRIEF DESCRIPTION OF THE DRAWINGS
[0049] Figure 1 This is a schematic diagram of the first usage state of the coffee table sofa in this application.
[0050] Figure 2 This is a schematic diagram of the second usage state of the coffee table sofa in this application.
[0051] Figure 3 It is a schematic cross-sectional view of the coffee table sofa in this application.
[0052] Figure 4 It is a schematic diagram of the internal structure of the coffee table sofa in this application.
[0053] Figure 5 It is a three-dimensional structural schematic diagram of the lifting component in this application.
[0054] Figure 6 It is a schematic diagram of the force analysis structure of the lifting component in this application.
[0055] In the figure:
[0056] 10. Base; 11. Support feet; 12. Slide rails; 13. Accommodation cavity; 14. Sinking trough;
[0057] 20. Seat cushion; 21. Bottom frame; 211. Guide rail; 22. Cushion;
[0058] 30. Backrest;
[0059] 40. Limiting assembly; 41. Fixing seat; 42. Limiting block; 421. Limiting jack; 422. Guide groove; 423. Notch; 43. Locking pin; 44. Unlocking pull rope; 45. Elastic reset member;
[0060] 50. driving assembly; 51. cable box; 511. cable; 52. pull rod;
[0061] 60. Lifting assembly; 61. Bottom plate; 62. First scissor arm; 621. First connecting rod; 622. Second connecting rod; 623. First roller; 63. Second scissor arm; 631. Third connecting rod; 632. Fourth connecting rod; 633. Second roller; 64. Elastic device; 65. Pneumatic rod; 66. Rotating shaft; 67. Connecting rod; 68. Mounting block; 681. Limiting groove; 69. Adjusting block; 691. Adjusting screw; 692. Limiting seat;
[0062] 70. Cover;
[0063] 80. Coffee table top. DETAILED DESCRIPTION
[0064] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.
[0065] Reference Figure 1 and Figure 2 As shown, the coffee table sofa in the present application includes a base 10 and a seat cushion 20 and a backrest 30 arranged on the base 10. The seat cushion 20 and the backrest 30 are combined to form a sofa seat. At least four supporting legs 11 are also fixed to the bottom of the base 10, and the supporting legs 11 are detachably fixed to the base 10 by bolts. The seat cushion 20 can slide on the base 10, and its sliding direction is away from the backrest 30 and close to the backrest 30. A coffee table top 80 is also arranged on the base 10. When the seat cushion 20 slides on the base 10 away from the backrest 30, the coffee table top 80 can be raised for use, and when the seat cushion 20 slides on the base 10 close to the backrest 30, the coffee table top 80 is hidden under the seat cushion 20. That is, the coffee table sofa in the present application has two states, such as Figure 1The state where the coffee table top 80 is hidden, the coffee table top 80 is not visible at this time, and only the sofa function is used; Figure 2 This is the state where the coffee table sofa is opened, and at this time the coffee table top 80 is exposed, and the coffee table function can be used.
[0066] Reference Figure 3 and Figure 4 As shown, the seat cushion 20 includes a bottom frame 21 and a soft cushion 22. The soft cushion 22 is arranged on the bottom frame 21. The bottom of both sides of the bottom frame 21 is fixed with a guide rail 211. The guide rail 211 is a strip-shaped metal part with arc-shaped grooves on both sides. The base 10 is provided with a slide rail 12, and the slide rail 12 has a slide groove. There are two groups of slide rails 12 and they are arranged one by one with two guide rails 211. The guide rail 211 is slidably arranged in the corresponding slide groove of the slide rail 12. In this application, the installation positions of the guide rail 211 and the slide rail 12 can be exchanged, that is, the guide rail 211 can be installed on the base 10, and the slide rail 12 can be installed on the bottom frame 21. The bottom frame 21 of the seat cushion 20 cooperates with the slide rail 12 through the guide rail 211 to achieve guidance and limitation, and ensure the stability and reliability of the seat cushion 20 when sliding.
[0067] Reference Figure 3 and Figure 4 As shown, in the present application, a limit assembly 40 capable of fixing and limiting the two is provided between the base 10 and the seat cushion 20, and a driving assembly 50 for driving the seat cushion 20 to move on the slide rail 12; the limit assembly 40 includes a fixed seat 41 fixed on the base 10 and a limit block 42 fixed on the bottom frame 21, the limit block 42 is arranged at one end of the bottom frame 21 away from the backrest 30, and a limit hole 421 is provided on one side of the limit block 42; a locking pin 43 is provided on the fixed seat 41, the locking pin 43 is axially slidably connected to the fixed seat 41, and one end of the locking pin 43 can be inserted into the limit hole 421. A guide groove 422 is provided on the side of the limit block 42, one end of the guide groove 422 is connected to the limit plug hole 421, and the other end of the guide groove 422 extends to the end surface of the limit block 42 and forms a notch 423, the notch 423 of the guide groove 422 is located on the end surface of the limit block 42 facing the backrest 30, and the notch 423 is also provided with a guiding inclined surface; the other end of the locking pin 43 is connected to the unlocking pull rope 44, and the axial direction of the locking pin 43 and the length direction of the unlocking pull rope 44 are perpendicular to the sliding direction of the seat cushion 20; the fixing seat 41 and / or The locking pin 43 is also provided with an elastic reset member 45 for resetting the locking pin 43, and the elastic reset member 45 can be a coil spring or a tension spring; when the seat cushion 20 slides into place, one end of the locking pin 43 is inserted into the limit socket 421 of the limit block 42, thereby limiting the seat cushion 20 to prevent the seat cushion 20 from moving and ensuring its stability and reliability; when the seat cushion 20 slides and causes the limit block 42 and the fixing seat 41 to move toward each other, one end of the locking pin 43 can slide into the limit socket 421 through the notch 423 of the guide groove 422 and the guide groove 422.
[0068] When the seat cushion 20 in the present application slides into place, the elastic reset member 45 gives an elastic force to the locking pin 43, so that one end of the locking pin 43 is stably plugged into the limiting socket 421 of the limiting block 42 and will not disengage; when it is necessary to unlock the locking pin 43 so that it disengages from the limiting socket 421 of the limiting block 42, only an external force is needed to pull the locking pin 43 through the unlocking pull rope 44 to overcome the elastic force of the elastic reset member 45. The operation is very convenient, stable and reliable. In addition, when the seat cushion 20 is pushed back into place, one end of the locking pin 43 can automatically slide into the limiting socket 421 through the notch 423 of the guide groove 422 and the guide groove 422, without the need for other operating steps, which is simple and labor-saving, and has a high degree of automation.
[0069] Reference Figure 4 As shown, the driving assembly 50 includes a drawstring box 51 fixed on the base 10 and a pull rod 52 fixed on the bottom frame 21. One end of the drawstring 511 in the drawstring box 51 extends toward the backrest 30 and is connected to the drawstring 52. The drawstring 52 is arranged at one end of the bottom frame 21 close to the backrest 30, and the drawstring box 51 is close to the end of the base 10. When the tea table sofa is in a state of hiding the tea table top 80, the drawstring 511 in the drawstring box 51 keeps applying tension to the drawstring 52 on the bottom frame 21 and the entire seat cushion 20. When the seat cushion 20 needs to be moved to open the tea table function, it is only necessary to pull the unlocking pull rope 44 to disengage the locking pin 43 from the limiting socket 421 in the limiting block 42, so that the pull of the drawstring 511 in the drawstring box 51 can be used to automatically realize the sliding of the seat cushion 20, thereby conveniently and quickly raising the tea table top 80 to realize the multifunctional state of the tea table sofa. In the present application, the driving assembly 50 for sliding out the seat cushion 20 adopts a purely mechanical structure. Compared with the motor structure, it has a fast sliding speed, low cost and high stability.
[0070] Reference Figure 3 and Figure 4 As shown, the coffee table top 80 is located between the backrest 30 and the slide rail 12; the base 10 is also provided with a receiving cavity 13, in which a lifting assembly 60 capable of driving the coffee table top 80 to move up and down is arranged; the outer periphery of the lifting assembly 60 is also covered with a circle of cover shell 70 made of soft material, the upper end of the cover shell 70 is connected to the coffee table top 80, and the lower end of the cover shell 70 is connected to the base 10; in this way, the lifting assembly 60 can be closed to prevent debris from entering the receiving cavity 13 and causing the lifting assembly 60 to get stuck, and to prevent dust, water, etc. from entering the receiving cavity 13 and not being cleaned; thereby improving the reliability and service life of the entire coffee table sofa. A sinking groove 14 matching the shape of the coffee table top 80 is also provided at the cavity opening of the receiving cavity 13 on the base 10, and when the coffee table top 80 descends, it is just embedded in the sinking groove 14 to avoid interference with other components.
[0071] Reference Figure 5 and Figure 6As shown, the lifting assembly 60 in the present application includes a bottom plate 61 fixed in the accommodating cavity 13 and a first scissor arm 62, a second scissor arm 63, a spring 64 and a gas pressure rod 65 arranged on the bottom plate 61; the lower end of the first scissor arm 62 is movably connected to the bottom plate 61, the upper end of the first scissor arm 62 is rotatably connected to the lower end of the second scissor arm 63, and the coffee table top 80 is arranged at the upper end of the second scissor arm 63; one end of the gas pressure rod 65 is rotatably connected to the bottom plate 61, the other end of the pneumatic rod 65 is rotatably connected to the first scissor arm 62 and / or the second scissor arm 63 and can push the first scissor arm 62 and the second scissor arm 63 to scissor deformation; the downward movement of the coffee table top 80 can drive the pneumatic rod 65 to swing and form a self-locking angle between the pneumatic rod 65 and the first scissor arm 62 and the second scissor arm 63; the elastic device 64 is vertically fixed on the base plate 61 and the coffee table top 80 can contact the upper end of the elastic device 64 after moving downward. Specifically, the first scissor arm 62 includes a first link 621 and a second link 622 hinged in the middle, the lower end of the first link 621 is rotatably connected to the base plate 61, and the lower end of the second link 622 is provided with a first roller 623 capable of rolling on the base plate 61; the second scissor arm 63 includes a third link 631 and a fourth link 632 hinged in the middle, the lower end of the third link 631 is rotatably connected to the upper end of the first link 621, and the lower end of the fourth link 632 is rotatably connected to the upper end of the second link 622; the upper end of the third link 631 is provided with a second roller 633 capable of rolling at the bottom of the coffee table top 80; the upper end of the fourth link 632 is rotatably connected to the bottom of the coffee table top 80; the pneumatic rod 65 is inclined and the upper end of the pneumatic rod 65 is rotatably connected to the upper end of the first link 621.
[0072] Furthermore, in the present application, there are two groups of first scissor arms 62 and second scissor arms 63, the two groups of first scissor arms 62 are arranged opposite to each other, and the two groups of second scissor arms 63 are arranged opposite to each other; the elastic device 64 and the pneumatic rod 65 are arranged between the two groups of first scissor arms 62; the four pairs of ends corresponding to the two groups of first scissor arms 62 and the four pairs of ends corresponding to the two groups of second scissor arms 63 are rotatably connected with a rotating shaft 66, and a connecting rod 67 is also provided between the upper ends of the two first connecting rods 621 in the two groups of first scissor arms 62, and the upper end of the pneumatic rod 65 is connected to the middle part of the connecting rod 67. The two groups of first scissor arms 62 and the second scissor arms 63 ensure the dispersion and balance of the force on the coffee table top 80, and at the same time improve the stability and reliability of the lifting and lowering of the coffee table top 80.
[0073] Reference Figure 5 and Figure 6As shown, in the present application, a mounting block 68 is fixedly provided at the bottom of the tea table board 80, and a limiting groove 681 is provided on the side of the mounting block 68, and the second roller 633 is embedded in the limiting groove 681; an adjusting block 69 is also fixedly provided at the bottom of the tea table board 80, and an adjusting screw 691 is threadedly connected to the adjusting block 69, and a limiting seat 692 is fixedly provided at the end of the adjusting screw 691, and the limiting seat 692 is located in the limiting groove 681 and can abut against the second roller 633. During the rising process of the tea table board 80, as the first scissor arm 62 and the second scissor arm 63 are deformed, the second pulley at the upper end of the third connecting rod 631 will roll in the limiting groove 681, and by rotating the adjusting screw 691, the limiting seat 692 is driven to move in the limiting groove 681, thereby limiting the movement range of the second pulley, and the rising height of the tea table board 80 can be controlled, so that the required height of the tea table board 80 can be adjusted according to personal needs, and the user's feeling of use is improved. It should be noted that the above-mentioned adjustment structure is installed on the bottom plate 61 and cooperates with the first roller 623 in the first scissor arm 62 to limit the height of the coffee table top 80, so as to adjust the height of the coffee table top 80.
[0074] The implementation principle is as follows: the coffee table sofa in the present application combines the two traditional furniture products of coffee table and sofa to form an integral furniture product, which has the dual functions of coffee table and sofa, has beautiful overall shape, compact structure and small space occupation; the unlocking pull rope 44 is close to the outer edge of the base 10, and when the coffee table top 80 needs to be used, the unlocking pull rope 44 is manually pulled. After the limit assembly 40 is unlocked, the seat cushion 20 automatically slides out in the direction away from the backrest 30, and then the coffee table top 80 is pressed to trigger the elastic device 64. The elastic device 64 gives the coffee table top 80 an upward force, driving the coffee table top 80 to move upward, and in the process drives the gas pressure rod 65 to swing and release the self-locking angle state, and then relies on the action force of the gas pressure rod 65 to push the coffee table top 80 to continue to rise to a suitable position. When the coffee table top 80 needs to be hidden, an external force presses the coffee table top 80 downward, which can drive the first scissor arm 62 and the second scissor arm 63 to deform and increase the scissor angle, thereby achieving the lowering of the coffee table top 80. During this process, the pneumatic rod 65 swings from a large inclination angle to a horizontal state. When the inclination angle is small enough, a self-locking angle is formed between the pneumatic rod 65 and the first scissor arm 62 and the second scissor arm 63, so that the fixed state is maintained, and then the seat cushion 20 is directly pushed back to its position. After the seat cushion 20 is in place, it will be automatically locked by the locking pin 43, and there is no need to pull the unlocking rope 44 at this time.
[0075] In the present application, when the pneumatic rod 65 is unlocked for outward support, it can drive the crossing angle of the first link 621 and the second link 622 in the first scissor arm 62 and the crossing angle of the third link 631 and the fourth link 632 in the second scissor arm 63 to change, thereby increasing the height of the entire lifting assembly and lifting the coffee table top 80; conversely, when the pneumatic rod 65 is compressed to self-locking, the height of the entire lifting assembly 60 decreases, and the coffee table top 80 decreases accordingly.
[0076] In this process, refer to Figure 5 During force analysis, the pneumatic rod 65 rotates around the connection point between it and the base plate 61, and the first connecting rod 621 rotates around the connection point between it and the base plate 61. The force analysis is performed based on the connection point between the pneumatic rod 65 and the connecting rod 67. It is assumed that the force F exerted by the pneumatic rod 65 on the connecting rod 67 is in the same direction as the length extension of the pneumatic rod 65. F is decomposed into a component force F1 perpendicular to the length direction of the first connecting rod 621 and a force F2 perpendicular to F1. The angle between F and F2 is β, F1=F*sinβ, F2=F*cosβ. It can be seen that since the first connecting rod 621 is a fixed part and cannot be extended or shortened, F2 does not participate in the lifting drive of the lifting assembly 60. The actual effect is produced by force F1, and since β is very small, F1 is very small.
[0077] Based on the above force analysis diagram, when the pneumatic rod 65 continues to press down, β gradually decreases, and the size of F1 gradually decreases in the process of β gradually decreasing, until it is pressed down to a certain balance point, and the size of F1 cannot reach the minimum force Q to lift the lifting assembly 60 (the F1 and Q mentioned below do not consider the direction of the force, but only consider the size of F1 and Q and the final macroscopic effect). The angle at this time is called β1, that is, F1=F*sinβ1=Q; when the pneumatic rod 65 is still pressed down until it can no longer be pressed down, β is less than β1, that is, F1=F*sinβ<Q, because the effect of Q makes the lifting pneumatic rod 65 self-locking.
[0078] When the coffee table top 80 needs to be raised, just press the coffee table table top, the elastic device 64 is unlocked, and the coffee table top 80 is lifted up. The coffee table top 80 drives the pneumatic rod 65 to swing and lift. At this time, F1 gradually increases with the increase of β. When β reaches β1, F1 just meets the minimum force Q to lift the lifting assembly 60, that is, F1=F*sinβ1=Q; as β continues to increase, F1 will be greater than the minimum force Q to lift the lifting assembly 60, that is, F1=F*sinβ>Q. At this time, the pneumatic rod 65 can replace the function of the elastic device 64 and lift the entire lifting assembly 60 to the set height.
[0079] It is worth noting that the height of the elastic device 64 is required, and it is appropriate to push the pneumatic rod to rise by itself after it is bounced up. If the height of the elastic device 64 is too low, it will not bounce up, and if the height is too high, it will be more laborious when the coffee table top 80 is pressed down.
[0080] The wire draw box 51, elastic device 64 and gas pressure rod 65 in the present application are all prior art, and relevant products can be purchased on the market, and their specific structures and principles are not described in detail here.
[0081] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A coffee table sofa, comprising a base (10) and a seat cushion (20) and a backrest (30) arranged on the base (10), characterized in that: The base (10) is provided with a slide rail (12), the seat cushion (20) is slidably arranged on the slide rail (12) and is capable of moving in a direction away from the backrest (30), and a limiting component (40) capable of fixing the two and a driving component (50) for driving the seat cushion (20) to move on the slide rail (12) is provided between the base (10) and the seat cushion (20); A coffee table top (80) is provided on the base (10) between the backrest (30) and the slide rail (12); The base (10) is also provided with a receiving cavity (13), and a lifting component (60) capable of driving the coffee table top (80) to move up and down is arranged in the receiving cavity (13).
2. The tea table sofa according to claim 1, characterized in that: The seat cushion (20) comprises a bottom frame (21) and a soft cushion (22); the soft cushion (22) is arranged on the bottom frame (21); guide rails (211) are fixedly arranged at the bottom of both sides of the bottom frame (21); there are two groups of slide rails (12) and the slide rails (211) are arranged in a one-to-one correspondence with the two guide rails (211); the guide rails (211) are slidably arranged on the corresponding slide rails (12).
3. The tea table sofa according to claim 2, characterized in that: The limiting assembly (40) comprises a fixing seat (41) fixed on the base (10) and a limiting block (42) fixed on the bottom frame (21), wherein a limiting insertion hole (421) is provided on one side of the limiting block (42); a locking pin (43) is provided on the fixing seat (41), the locking pin (43) is axially slidably connected to the fixing seat (41), and one end of the locking pin (43) can be inserted into the limiting insertion hole (421).
4. The tea table sofa according to claim 3, characterized in that: A guide groove (422) is provided on the side surface of the limit block (42), one end of the guide groove (422) is connected to the limit insertion hole (421), and the other end of the guide groove (422) extends to the end surface of the limit block (42) to form a notch (423); The other end of the locking pin (43) is connected to an unlocking pull rope (44); The fixing seat (41) and / or the locking pin (43) are also provided with an elastic reset member (45) for resetting the locking pin (43); When the seat cushion (20) slides to make the limit block (42) and the fixing seat (41) move toward each other, one end of the locking pin (43) can slide into the limit insertion hole (421) through the notch (423) of the guide groove (422) and the guide groove (422).
5. The tea table sofa according to claim 4, characterized in that: The limit block (42) is arranged at one end of the bottom frame (21) away from the backrest (30), and the notch (423) of the guide groove (422) is located on the end surface of the limit block (42) facing the backrest (30); the axial direction of the locking pin (43) and the length direction of the unlocking rope (44) are both perpendicular to the sliding direction of the seat cushion (20).
6. The tea table sofa according to any one of claims 2 to 5, characterized in that: The driving assembly (50) comprises a wire draw box (51) fixedly mounted on the base (10) and a pull rod (52) fixedly mounted on the bottom frame (21); one end of a pull wire (511) in the wire draw box (51) extends toward the backrest (30) and is connected to the pull rod (52).
7. The tea table sofa according to any one of claims 1 to 5, characterized in that: The lifting assembly (60) comprises a base plate (61) fixedly arranged in the accommodating cavity (13), and a first scissor arm (62), a second scissor arm (63), a spring (64) and a gas pressure rod (65) arranged on the base plate (61); the lower end of the first scissor arm (62) is movably connected to the base plate (61), the upper end of the first scissor arm (62) is rotatably connected to the lower end of the second scissor arm (63), and the coffee table top (80) is arranged on the upper end of the second scissor arm (63); One end of the pneumatic rod (65) is rotatably connected to the base plate (61), and the other end of the pneumatic rod (65) is rotatably connected to the first scissor arm (62) and / or the second scissor arm (63) and can push the first scissor arm (62) and the second scissor arm (63) to deform; the downward movement of the coffee table top (80) can drive the pneumatic rod (65) to swing and form a self-locking angle between the pneumatic rod (65) and the first scissor arm (62) and the second scissor arm (63); The elastic device (64) is vertically fixed on the bottom plate (61) and the coffee table top (80) can contact the upper end of the elastic device (64) after moving downward.
8. The tea table sofa according to claim 7, characterized in that: The first scissor arm (62) comprises a first connecting rod (621) and a second connecting rod (622) which are hinged in the middle, the lower end of the first connecting rod (621) is rotatably connected to the bottom plate (61), and the lower end of the second connecting rod (622) is provided with a first roller (623) capable of rolling on the bottom plate (61); The second scissor arm (63) comprises a third connecting rod (631) and a fourth connecting rod (632) which are hinged in the middle, the lower end of the third connecting rod (631) is rotatably connected to the upper end of the first connecting rod (621), and the lower end of the fourth connecting rod (632) is rotatably connected to the upper end of the second connecting rod (622); the upper end of the third connecting rod (631) is provided with a second roller (633) which can roll on the bottom of the coffee table top (80); the upper end of the fourth connecting rod (632) is rotatably connected to the bottom of the coffee table top (80); The pneumatic rod (65) is arranged obliquely and the upper end of the pneumatic rod (65) is rotatably connected to the upper end of the first connecting rod (621).
9. The tea table sofa according to claim 8, characterized in that: A mounting block (68) is fixedly provided at the bottom of the coffee table top (80), a limiting groove (681) is provided on the side of the mounting block (68), and the second roller (633) is embedded in the limiting groove (681); An adjustment block (69) is also fixedly provided at the bottom of the coffee table top (80), an adjustment screw (691) is threadedly connected to the adjustment block (69), a limit seat (692) is fixedly provided at the end of the adjustment screw (691), and the limit seat (692) is located in the limit groove (681) and can abut against the second roller (633).
10. The tea table sofa according to claim 8, characterized in that: The first scissor arms (62) and the second scissor arms (63) are each provided in two groups, the two groups of the first scissor arms (62) are arranged opposite to each other, and the two groups of the second scissor arms (63) are arranged opposite to each other; the elastic device (64) and the gas pressure rod (65) are both arranged between the two groups of the first scissor arms (62); A rotating shaft (66) is rotatably connected between the four pairs of ends corresponding to the two groups of the first scissor arms (62) and between the four pairs of ends corresponding to the two groups of the second scissor arms (63). A connecting rod (67) is also provided between the upper ends of the two first connecting rods (621) in the two groups of the first scissor arms (62), and the upper end of the pneumatic rod (65) is connected to the middle part of the connecting rod (67).