Integrated functional frame for sliding and extending the sofa

Abstract

Integrated functional frame for sliding and extending the sofa, characterized in that it comprises a chair frame base (2) and a movable frame body (1), wherein the movable frame body (1) comprises a seat cushion mounting rod (105), a pedal assembly (106) and a backrest assembly (104); wherein the mounting rod of the seat cushion (105) is articulated with the pedal assembly (106); wherein movable frame body (1) is slidably mounted on the chair frame base (2); wherein the movable frame body (1) slides relative to the chair frame base (2) to achieve extension and retraction.

Description

Technical area

[0001] The present invention relates to the field of sofas, in particular to an integrated functional frame for sliding and extending a sofa. Background technology

[0002] With the improvement of living standards, people's comfort requirements for sofa seats are becoming higher and higher. At present, many sofa seats on the market have added functions such as pedals and backrests in addition to the basic seating functions. And in order to save space, the pedals and backrests can be retracted or extended. However, most sofa chairs on the market do not slide relative to the seat when the pedals and backrests are unfolded. When people actually lie on the sofa chair, their feet are raised, their backs are lowered, and their hips move accordingly. However, most cushions on the market do not move when the pedals and backrests are lowered, requiring the person sitting on them to adjust their own posture, which is not friendly to that person.

[0003] The technical content disclosed in the Chinese patent literature (application number: 201620126706.7, patent title: A leisure chair with a pedal and a cushion coupled) is: The utility model relates to the technical field of leisure chairs, and in particular to a leisure chair with a pedal and a cushion coupled.A pedal-coupling leisure chair comprising a backrest, a cushion, a bracket, and a base. The lower end of the backrest is rotatably connected to the rear end of the cushion. The cushion is disposed above the bracket. The bracket is disposed on the base. A pedal is disposed between the cushion and the bracket. A cushion driving device is attached to the bracket. The cushion driving device is connected to the lower end of the cushion. The cushion pushes the pedal forward when the cushion driving device drives the cushion backward. The cushion pulls the pedal backward when the cushion driving device drives the cushion forward. The utility model has a simple structure and is convenient to use. When the user adjusts the cushion of the leisure chair, the pedal is coupled to the cushion, and no separate adjustment is required.

[0004] From the above embodiment, it can be seen that when the cushion of the leisure chair is moved by the drive device, the pedal also extends or retracts. From the schematic diagram of this solution, it can be seen that the cushion is directly connected to the chair bracket to move together. When the cushion moves, the entire chair bracket must move together, causing greater force on the chair bracket. And when the cushion and chair bracket move together, the chair angle also adjusts, causing the entire chair to generate greater vibration and reducing the comfort of the human body. Content of the invention

[0005] The present disclosure provides an integrated functional frame for sliding and extending a sofa that can overcome the deficiencies of the prior art mentioned in the background.

[0006] In order to solve the above-mentioned technical problems, the present invention is realized by the following technical solutions: An integrated functional frame for sliding and extending the sofa, comprising a chair frame base and a movable frame body, the movable frame body including a seat cushion installation rod, a pedal assembly, and a backrest assembly; wherein the seat cushion mounting rod is hinged to the pedal assembly; wherein movable frame body is slidably mounted on the chair frame base; wherein the movable frame body slides relative to the chair frame base to achieve retraction and extension.

[0007] Further, the two sides of the chair frame base are provided with base side frame bodies, and the base side frame bodies are connected on both sides of the chair frame base by a first base connecting rod, a second base connecting rod, and a third base connecting rod; wherein a guide groove is arranged on the base side frame body and the movable frame body is slidably connected to the guide groove; Alternatively, the base side frame body is provided with a downwardly inclined guide groove and an upwardly inclined guide groove; wherein the movable frame body is slidably connected to the downwardly inclined guide groove and the upwardly inclined guide groove.

[0008] Furthermore, the downwardly inclined guide groove is a first slide rail, wherein the upwardly inclined guide groove comprises a second slide rail and a third slide rail, wherein the second slide rail has a smaller inclination than the third slide rail.

[0009] Furthermore, the upper two sides of the chair frame base are each provided with movable frame bodies, wherein the movable frame body is connected to the upper two sides of the chair frame base by a center shaft, wherein the chair frame base is connected to a power assembly, wherein the extension rod of the power assembly is connected to the center shaft, wherein the center shaft drives this pedal assembly to extend when the back is moved towards the pedal assembly by the power assembly, wherein the center shaft drives the backrest assembly to retract when the backrest is moved towards the pedal assembly by the power assembly, so that the backrest assembly extends away from the seat cushion fixing rod; wherein a reinforcing rod is connected between the mounting rods on both sides; when the center shaft is retracted by the power assembly toward the pedal assembly, it drives the pedal assembly to retract, and when the center shaft is retracted by the power assembly toward the pedal assembly, it drives the backrest assembly to retract toward the mounting rod.

[0010] Further, the seat cushion installation rod includes a sliding connection surface and a seat cushion installation surface, wherein a seat cushion is externally connected above the seat cushion installation surface, wherein the lower end of the sliding connection surface includes a backrest assembly connection hole, a first sliding hole, a second sliding hole, and a telescopic rod pivot hole, wherein the backrest assembly connection hole is slidably connected to the first slide rail, the first sliding hole is slidably connected to the second slide rail, and the second sliding hole is slidably connected to the third slide rail.

[0011] Further, one end of the base side frame body is provided with a rotation sliding groove, wherein the second connecting rod of the base is fixedly connected to a telescopic base, wherein the telescopic base includes a fixing hole and a base rotation hole, wherein the fixing hole is fixedly inserted with the second connecting rod of the base, wherein the base rotation hole and the rotation base rod are rotatably connected.

[0012] Furthermore, the center of the rotary base rod is provided with a rotary hole, the two ends of the rotary base rod are each provided with a base connection hole and a backrest connection hole, the base connection hole is rotatably connected to a rotary slide block, the rotary slide block is slidably connected to the rotary slide groove, the backrest connection hole is rotatably connected to the backrest assembly.

[0013] The backrest assembly further comprises a first backrest connector, a second backrest connector, a third backrest connector, and a fourth backrest connector, wherein the first backrest connector, the second backrest connector, the third backrest connector, and the fourth backrest connector are connected to each other to form a closed loop.

[0014] The pedal assembly further comprises a first telescopic rod, a second telescopic rod, a third telescopic rod, a fourth telescopic rod, a fifth telescopic rod, a sixth telescopic rod, and a first pedal support rod, which are nested and rotatably connected to one another.

[0015] Furthermore, the seat cushion installation rod has a telescopic first connection hole, a telescopic second connection hole, and a spring seat installation hole, wherein the telescopic first connection hole is rotatably connected to one end of the third telescopic rod, wherein the first telescopic rod has a pivot hole of the first telescopic rod, wherein the pivot hole of the first telescopic rod is rotatably connected to the telescopic second connection hole, wherein one end of the first telescopic rod is connected to the first spring connecting pin, wherein the spring seat installation hole is connected to the second spring connecting pin, wherein one end of the tension spring is connected to the first spring connecting pin, wherein the other end of the tension spring is connected to the second spring connecting pin, wherein the middle position of the first telescopic rod is connected to the connecting block of the center shaft,wherein the center shaft connecting block comprises a center shaft connecting surface, wherein the center shaft connecting surface is connected to the center shaft., Compared to the state of the art, the application has the following advantages:

[0016] The present invention provides an integrated functional frame for sliding and extending the sofa, provided with a chair frame base, wherein a movable frame is slidably connected to the chair frame base, wherein the movable frame body is provided with a seat cushion installation rod, and the seat cushion of the sofa chair is connected to the seat cushion installation rod, so that the seat cushion of the sofa chair can slide relative to the chair frame base. One end of the seat cushion installation rod is connected to the pedal assembly, and the other end is connected to the backrest assembly. The pedal assembly and the seat cushion installation rod are also connected by springs. When it is necessary to extend the pedal, the power assembly pushes the pedal out first. At this time, the cushion still does not move due to the pressure of the human body's gravity.After the pedal is extended, the thrust of the power unit 4 also causes the cushion to move forward. This adjustment mode ensures that the hips do not move until the feet are lifted, which does not seem abrupt, and the entire adjustment process is very smooth. Furthermore, the seat cushion moves relative to the base of the chair frame, so the lower half of the entire chair frame does not vibrate during the entire adjustment process, making the entire chair frame more durable. Illustration of the attached drawings Fig. 1 is the first general schematic diagram of the sofa chair frame; Fig. 2 is the second general schematic diagram of the sofa chair frame; Fig. 3 is a schematic exploded view of the sofa chair frame; Fig. 4 is a plan view of the sofa chair frame; Fig. 5 is a retraction view of the first embodiment; Fig. 6 is an extension view of the first embodiment; Fig. 7 is a retraction view of the second embodiment; ; Fig. Fig. 8 is an extension view of the second embodiment; Fig. 9 is a schematic diagram of the movable frame body; Fig. 10 is an exploded view of the movable frame body; Fig. Figure 11 is a schematic diagram of another structural type of sofa chair frame.

[0017] In the figures: 1, movable frame body; 101, telescopic base; 1011, fixing hole; 1012, base pivot hole; 102, pivot base rod; 1021, base connecting hole; 1022, pivot hole; 1023, backrest connecting hole; 1024, pivot sliding block; 104, backrest assembly; 1041, first backrest connector; 10411, backrest sliding hole; 10412, first backrest pivot hole; 10413, second backrest pivot hole; 1042, second backrest connector; 10421, third backrest pivot hole; 10422, fourth backrest pivot hole; 10423, fifth backrest pivot hole; 1043, third backrest connector; 1044, fourth backrest connector; 10441, sixth pivot hole of the backrest; 10442, seventh pivot hole of the backrest; 10443, eighth pivot hole of the backrest; 105, seat cushion installation rod; 1051, sliding connection surface; 10511, backrest assembly connection hole; 10512, first sliding hole; 10513, second sliding hole; 10514, telescopic rod pivot hole;10515, telescopic first connecting hole; 10516, telescopic second connecting hole; 10517, spring seat installation hole; 1052, seat cushion installation surface; 106, pedal assembly; 1061, first telescopic rod; 10611, first telescopic rod pivot hole; 1062, second telescopic rod; 1063, third telescopic rod; 1064, fourth telescopic rod; 1065, fifth telescopic rod; 1066, sixth telescopic rod; 1067, first pedal support rod; 10671, first pedal support surface; 1068, center shaft connecting block; 10681, center shaft connecting surface; 1069, second pedal support rod; 10691, second pedal support surface; 10610, seventh telescopic rod; 107, first spring connecting pin; 108, second spring connecting pin; 109, tension spring; 1010, reinforcement rod; 2, chair frame base; 201, base side frame body; 2011, first slide rail; 2012, second slide rail; 2013, third slide rail; 2014, rotary slide groove; 202, first connecting rod of the base; 203, second connecting rod of the base;204, third connecting rod of the base; 205, guide groove; 3, center shaft; 4, power assembly.; Specific embodiments

[0018] The preferred embodiments of the invention are described below in conjunction with the accompanying drawings, it being understood that the preferred embodiments described herein are for illustrative and explanatory purposes only and are not intended to be limiting of the invention.

[0019] As in the Fig. 1 to 6, 9, and 10, the integrated functional frame for sliding and extending the sofa in the first embodiment includes a chair frame base 2 and a movable frame body 1, wherein the movable frame body 1 includes a seat cushion installation rod 105, a pedal assembly 106, and a backrest assembly 104; wherein the seat cushion installation rod 105 is pivotally arranged with the pedal assembly 106; wherein the movable frame body 1 is slidably mounted on the chair frame base 2; wherein the movable frame body 1 slides relative to the chair frame base 2 to achieve retraction and extension. The seat cushion of the sofa chair can slide relative to the chair frame base 2. One end of the seat cushion installation rod 105 is connected to the pedal assembly 106, and the other end is connected to the backrest assembly 104. The pedal assembly 106 and the seat cushion mounting rod 105 are also connected by a tension spring 109.When it is necessary to extend the pedal, the power assembly 106 first pushes out the pedal assembly 106. At this time, the seat cushion is still stretched due to the pressure of human gravity, and the tension spring 109 is stretched. After the pedal assembly 106 is extended, the pushing force of the power assembly 4 causes the seat cushion to move forward, and when the seat cushion is moved out, the backrest assembly 104 also forms the first semi-reclining sitting position with the flattening. This adjustment method causes the human body to move the hips only after lifting the foot, which does not appear abrupt, and also makes the entire adjustment process very smooth. When moving the movable frame body 1, the power assembly 4 also retracts the pedal assembly 106 and then slowly moves the cushion back to the original position.As the cushion moves back, the backrest assembly 104 also straightens to form a second seating position. The movement of the seat cushion relative to the chair frame base 2 makes the lower half of the entire chair frame vibration-free during the entire adjustment process, making the entire chair frame more durable.

[0020] The upper two sides of the chair frame base 2 are each provided with movable frame bodies 1, wherein the movable frame body 1 is connected to the upper two sides of the chair frame base 2 by a center shaft 3, wherein the chair frame base 2 is connected to a power assembly 4, wherein the extension rod of the power assembly 4 is connected to the center shaft 3, wherein the center shaft 3 drives this pedal assembly 106 to extend when the back is moved towards the pedal assembly 106 by the power assembly 4, wherein the center shaft 3 drives the backrest assembly 104 to retract when the backrest assembly 104 is moved towards the pedal assembly 106 by the power assembly 4, so that the backrest assembly 104 extends away from the seat cushion fixing rod 105; wherein a reinforcing rod 1010 is connected between the fitting rods 105 on both sides, wherein the reinforcing rod 1010 has a reinforcing structure.

[0021] When the center shaft 3 is retracted toward the pedal assembly 106 by the power assembly 4, it drives the pedal assembly 106 to retract, and when the center shaft 3 is retracted toward the pedal assembly 106 by the power assembly 4, it drives the backrest assembly 104 to retract toward the installation rod 105. The two sides of the chair frame base 2 are provided with base side frame bodies 201, and the base side frame bodies 201 are connected on both sides of the chair frame base 2 by a first base connecting rod 202, a second base connecting rod 203, and a third base connecting rod 204. The base side frame body 201 is provided with a downwardly inclined guide groove and an upwardly inclined guide groove; the movable frame body 1 is slidably connected to the downwardly inclined guide groove and the upwardly inclined guide groove.The downwardly inclined guide groove is a first slide rail 2011, wherein the upwardly inclined guide groove comprises a second slide rail 2012 and a third slide rail 2013, wherein the second slide rail 2012 has a smaller inclination than the third slide rail 2013. The power assembly 4 here can be an electric cylinder or a cylinder drive component.

[0022] The installation rod of the seat cushion 105 includes a sliding connection surface 1051 and a seat cushion installation surface 1052, wherein a seat cushion is externally connected above the installation surface of the seat cushion 1052, wherein the lower end of the sliding connection surface 1051 includes a connection hole of the backrest assembly 10511, a first sliding hole 10512, a second sliding hole 10513 and a rotation hole of the telescopic rod 10514, wherein the connection hole of the backrest assembly 10511 is slidably connected to the first slide rail 2011, the first sliding hole 10512 is slidably connected to the second slide rail 2012, the second sliding hole 10513 is slidably connected to the third slide rail 2013.Therefore, when the power assembly 4 pushes the center shaft 3, the seat cushion can slide relative to the entire chair frame base 2, making the entire adjustment process relatively smooth, while the presence of the chair frame base 2 separates the extension and retraction movement of the movable frame body 1 above from the entire seat frame below the chair seat base 2, so that the two do not interfere with each other, making the entire chair more stable.

[0023] When the power assembly 4 pushes the chair frame base 2 away, the connecting hole of the backrest assembly 10511 moves in the downward direction along the first slide rail 2011 and the second slide hole 10513 slides in the upward direction along the third slide rail 2013, the hips of the person sitting on the top move downward, while the legs are lifted by the outer part of the chair frame base 2, the pedal assembly 106 is extended and the backrest assembly 104 is spread backward and the person sitting on the top forms a lying position.

[0024] When the power assembly 4 retracts the chair frame base 2, the connecting hole of the backrest assembly 10511 moves in the upward direction along the first slide rail 2011 and the second slide hole 10513 slides in the downward direction along the third slide rail 2013, the hips of the person sitting on the top move upward, while the legs are flattened by the outer part of the chair frame base 2, the pedal assembly 106 is retracted and the backrest assembly 104 is spread forward and the person sitting on the top forms a sitting position.

[0025] This connection allows the entire sofa chair frame to assist the person sitting on it in changing positions, making it very convenient to use.

[0026] One end of the base side frame body 201 is provided with a rotation sliding groove 2014, wherein the second connecting rod of the base 203 is fixedly connected to a telescopic base 101, wherein the telescopic base 101 includes a fixing hole 1011 and a base rotation hole 1012, wherein the fixing hole 1011 is fixedly inserted with the second connecting rod of the base 203, wherein the base rotation hole 1012 and the rotation base rod 102 are rotatably connected.

[0027] The center of the rotary base rod 102 is provided with a rotary hole 1022, the two ends of the rotary base rod 102 are each provided with a base connection hole 1021 and a backrest connection hole 1023, the base connection hole 1021 being rotatably connected to a rotary slide block 1024, the rotary slide block 1024 being slidably connected to the rotary slide groove 2014, the backrest connection hole 1023 being rotatably connected to the backrest assembly 104.

[0028] The backrest assembly 104 includes a first backrest connector 1041, a second backrest connector 1042, a third backrest connector 1043, and a fourth backrest connector 1044. The first backrest connector 1041, the second backrest connector 1042, the third backrest connector 1043, and the fourth backrest connector 1044 are connected to each other to form a closed loop. The first backrest connector 1041 includes a backrest sliding hole 10411, a first backrest pivot hole 10412, and a second backrest pivot hole 10413.The sliding hole of the backrest 10411 is rotationally connected to the installation rod of the seat cushion 105, the sliding hole of the backrest 10411 is slidably connected to the chair frame base 2, the first pivot hole of the backrest 10412 is rotationally connected to the fourth backrest connector 1044, and the second pivot hole of the backrest 10413 is rotationally connected to the second backrest connector 1042. The second backrest connector 1042 includes the third pivot hole of the backrest 10421, the fourth pivot hole of the backrest 10422, and the fifth pivot hole of the backrest 10423. The third pivot hole of the backrest 10421 is pivotally connected to the second pivot hole of the backrest 10413, the fourth pivot hole of the backrest 10422 is pivotally connected to one end of the third backrest connector 1043, and the other end of the third backrest connector 1043 is pivotally connected to the fourth backrest connector 1044.The fourth backrest connector 1044 includes the sixth backrest pivot hole 10441, the seventh backrest pivot hole 10442, and the eighth backrest pivot hole 10443. The seventh backrest pivot hole 10442 is located at the middle end of the fourth backrest connector 1044. The sixth backrest pivot hole 10441 and the eighth backrest pivot hole 10443 are respectively located at both ends of the fourth backrest connector 1044. The sixth backrest pivot hole 10441 is pivotally connected to the first backrest pivot hole 10412, and the eighth backrest pivot hole 10443 is externally connected to the backrest.When the installation rod of the seat cushion 105 is slid, the first backrest connector 1041 connected to the installation rod of the seat cushion 105 also slides along the first slide rail 2011 like the installation rod of the seat cushion 105, and during the sliding operation of the first backrest connector 1041, the fourth backrest connector 1044 connected thereto also rotates accordingly, but since the second backrest connector 1042 is also connected to the rotary base rod 102, thus defining the sixth rotation hole of the backrest 10441. When sliding to both ends of the first slide rail 2011, the state of the backrest is straight and flat, respectively.

[0029] The pedal assembly 106 includes a first telescopic rod 1061, a second telescopic rod 1062, a third telescopic rod 1063, a fourth telescopic rod 1064, a fifth telescopic rod 1065, a sixth telescopic rod 1066, and a first pedal support rod 1067, which are nested and rotatably connected to one another.The installation rod of the seat cushion 105 has a telescopic first connection hole 10515, a telescopic second connection hole 10516 and a spring seat installation hole 10517, wherein the telescopic first connection hole 10515 is rotatably connected to one end of the third telescopic rod 1063, wherein the first telescopic rod 1061 has a rotation hole of the first telescopic rod 10611, wherein the rotation hole of the first telescopic rod 10611 is rotatably connected to the telescopic second connection hole 10516, wherein one end of the first telescopic rod 1061 is connected to the first spring connection pin 107, wherein the installation hole of the spring seat 10517 is connected to the second spring connection pin 108, wherein one end of the tension spring 109 is connected to the first spring connection pin 107 and the other end of the tension spring 109 is connected to the second spring connection pin 108 is connected.The middle position of the first telescopic rod 1061 is connected to the connecting block of the center shaft 1068, wherein the connecting block of the center shaft 1068 includes a connecting surface of the center shaft 10681, wherein the connecting surface of the center shaft 10681 is connected to the center shaft 3.One end of the first telescopic rod 1061 is rotatably connected to one end of the second telescopic rod 1062, the middle end of the second telescopic rod 1062 is rotatably connected to the third telescopic rod 1063, the other end of the second telescopic rod 1062 is rotatably connected to the fifth telescopic rod 1065, the middle end of the fifth telescopic rod 1065 is rotatably connected to the fourth telescopic rod 1064, the other end of the fifth telescopic rod 1065 is rotatably connected to the sixth telescopic rod 1066, the other end of the sixth telescopic rod 1066 is rotatably connected to the first pedal support rod 1067, the other end of the first pedal support rod 1067 is rotatably connected to the fourth telescopic rod 1064, and the other end of the fourth telescopic rod 1064 is rotatably connected to the third telescopic rod 1063.Therefore, the first telescopic rod 1061, the second telescopic rod 1062, the third telescopic rod 1063, the fourth telescopic rod 1064, the fifth telescopic rod 1065, the sixth telescopic rod 1066, and the first pedal support rod 1067 form a coupling. When the center shaft 3 is pushed, the center shaft 3 drives the first telescopic rod 1061 to pivot, and the first telescopic rod 1061 transmits power to cause the pedal assembly to expand or contract.

[0030] As in the Fig. 1 to 4 and the Fig. 7 to 10, the difference between the second embodiment and the first embodiment is that in the second embodiment, a second pedal support rod 1069 and a seventh telescopic rod 10610 are added, one end of the seventh telescopic rod 10610 is connected to the first pedal support rod 1067, the other end of the seventh telescopic rod 10610 is connected to the sixth telescopic rod 1066, and end points of the connecting rod of the second pedal support rod 1069 on one side are respectively rotatably connected to the first pedal support rod 1067 and the sixth telescopic rod 1066, the first pedal support rod 1067 includes a first pedal support surface 10671 and the second pedal support rod 1069 includes a second pedal support surface 10691. When the pedal assembly 106 is extended, the first pedal support surface 10671 and the second pedal support surface 10691 are in the same plane.Compared to the first embodiment, the second embodiment of the pedal assembly 106 is extended longer so that the legs can be supported in more places, making the reclining person more comfortable.

[0031] Fig. Figure 11 is a schematic diagram of another structural mode of the sofa chair frame. The difference between this structure and the structure shown in the Fig. 1 to 10 is only that the base side frame body 201 is provided with a guide groove 205 (that is, the first slide rail 2011, the second slide rail 2012, and the third slide rail 2013 in the above structure are fully connected), and the movable frame body 1 is slidably connected to the guide groove 205. The structure is simplified, which is conducive to reducing the difficulty of installation.

[0032] The traditional structural method is to first make a wooden frame and then connect the sofa frame (chair frame base, backrest assembly and other accessories) to the wooden frame, but this method will make the structure bulky and expensive to manufacture; currently, it is not necessary to use a wooden frame to manufacture an integrated frame with connecting function, the structure is light and the cost is low, the cushion and backrest are directly installed into the corresponding chair frame and backrest assembly, so that the sofa can be assembled and manufactured in a modular manner, which saves labor and high production efficiency; and the chair frame base and the movable frame body are compactly connected, the two strokes run in coupling, so that it is stable and does not shake when opened.

[0033] Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail using examples, it is nevertheless possible for those skilled in the art to modify the technical solutions described in the above embodiments or to substitute some of the technical features for equivalents. However, all modifications, equivalents, modifications, etc., made within the spirit and principles of the present invention should be included within the scope of the present invention.

[0034] In summary, the present invention provides an integrated functional frame for sliding and extending a sofa, which relates to the field of sofas and seats and comprises a chair frame base and a movable frame body, wherein the movable frame body comprises a seat cushion mounting rod, a pedal assembly, and a backrest assembly; wherein the seat cushion mounting rod is hinged to the pedal assembly; wherein the movable frame body is slidably mounted to the chair frame base; wherein the movable frame body slides relative to the chair frame base to achieve retraction and extension.The advantageous effect of the present invention is to provide a chair frame base wherein a movable frame is slidably connected to the chair frame base, wherein the movable frame body is provided with a seat cushion installation rod, and the seat cushion of the sofa chair is connected to the seat cushion installation rod, so that the seat cushion of the sofa chair can slide relative to the chair frame base and the seat cushion moves relative to the chair frame base, so that the lower half of the entire chair frame does not vibrate during the entire adjustment process, thereby making the entire chair frame more durable.

Claims

[1] Integrated functional frame for sliding and extending the sofa, characterized by that it comprises a chair frame base (2) and a movable frame body (1), wherein the movable frame body (1) comprises a seat cushion mounting rod (105), a pedal assembly (106) and a backrest assembly (104); wherein the mounting rod of the seat cushion (105) is articulated to the pedal assembly (106); wherein the movable frame body (1) is slidably mounted on the chair frame base (2); wherein the movable frame body (1) slides relative to the chair frame base (2) to achieve retraction and extension. [2] Integrated functional frame for sliding and extending the sofa according to claim 1, characterized bythat the two sides of the chair frame base (2) are provided with base side frame bodies (201) and the base side frame bodies (201) on both sides of the chair frame base (2) are connected by a first base connecting rod (202), a second base connecting rod (203) and a third base connecting rod (204); wherein a guide groove (205) is arranged on the base side frame body (201) and the movable frame body (1) is slidably connected to the guide groove (205); Alternatively, the base side frame body (201) is provided with a downwardly inclined guide groove and an upwardly inclined guide groove; wherein the movable frame body (1) is slidably connected to the downwardly inclined guide groove and the upwardly inclined guide groove. [3] Integrated functional frame for sliding and extending the sofa according to claim 2, characterized byin that the downwardly inclined guide groove is a first slide rail (2011), wherein the upwardly inclined guide groove comprises a second slide rail (2012) and a third slide rail (2013), wherein the second slide rail (2012) has a smaller inclination than the third slide rail (2013). [4] Integrated functional frame for sliding and extending the sofa according to claim 3, characterized bythat the upper two sides of the chair frame base (2) are each provided with movable frame bodies (1), wherein the movable frame body (1) is connected to the upper two sides of the chair frame base (2) by a central shaft (3), wherein the chair frame base (2) is connected to a power assembly (4), wherein the extension rod of the power assembly (4) is connected to the central shaft (3), wherein the central shaft (3) drives this pedal assembly (106) to extend when the back is moved towards the pedal assembly (106) by the power assembly (4), wherein the central shaft (3) drives the backrest assembly (104) to retract when the backrest assembly (104) is moved towards the pedal assembly (106) by the power assembly (4), so that the backrest assembly extends away from the seat cushion attachment rod (105); wherein a reinforcing rod (1010) is connected between the mounting rods (105) on both sides; when the center shaft (3) is retracted by the power assembly (4) toward the pedal assembly (106), it drives the pedal assembly (106) to retract, and when the center shaft (3) is retracted by the power assembly (4) toward the pedal assembly (106), it drives the backrest assembly (104) to retract toward the mounting rod (105). [5] Integrated functional frame for sliding and extending the sofa according to claim 4, characterized byin that the installation rod of the seat cushion (105) comprises a sliding connection surface (1051) and an installation surface of the seat cushion (1052), wherein a seat cushion is externally connected above the installation surface of the seat cushion (1052), wherein the lower end of the sliding connection surface (1051) comprises a connection hole of the backrest assembly (10511), a first sliding hole (10512), a second sliding hole (10513) and a pivot hole of the telescopic rod (10514), wherein the connection hole of the backrest assembly (10511) is slidably connected to the first slide rail (2011), wherein the first sliding hole (10512) is slidably connected to the second slide rail (2012), wherein the second sliding hole (10513) is slidably connected to the third slide rail (2013). [6] Integrated functional frame for sliding and extending the sofa according to claim 5, characterized bythat one end of the base side frame body (201) is provided with a rotation sliding groove (2014), wherein the second connecting rod of the base (203) is fixedly connected to a telescopic base (101), wherein the telescopic base (101) comprises a fixing hole (1011) and a base rotation hole (1012), wherein the fixing hole (1011) is fixedly inserted with the second connecting rod of the base (203), wherein the base rotation hole (1012) and the rotation base rod (102) are rotatably connected. [7] Integrated functional frame for sliding and extending the sofa according to claim 6, characterized byin that the center of the rotary base rod (102) is provided with a rotary hole (1022), wherein the two ends of the rotary base rod (102) are each provided with a base connection hole (1021) and a backrest connection hole (1023), wherein the base connection hole (1021) is rotatably connected to a rotary sliding block (1024), wherein the rotary sliding block (1024) is slidably connected to the rotary sliding groove (1014), wherein the backrest connection hole (1023) is rotatably connected to the backrest assembly (104). [8] Integrated functional frame for sliding and extending the sofa according to one of claims 1 to 7, characterized byin that the backrest assembly (104) comprises a first backrest connector (1041), a second backrest connector (1042), a third backrest connector (1043) and a fourth backrest connector (1044), wherein the first backrest connector (1041), the second backrest connector (1042), the third backrest connector (1043) and the fourth backrest connector (1044) are connected to one another to form a closed loop. [9] Integrated functional frame for sliding and extending the sofa according to one of claims 1 to 7, characterized by that the pedal assembly (106) comprises a first telescopic rod (1061), a second telescopic rod (1062), a third telescopic rod (1063), a fourth telescopic rod (1064), a fifth telescopic rod (1065), a sixth telescopic rod (1066) and a first pedal support rod (1067) which are nested and rotatably connected to one another. [10] Integrated functional frame for sliding and extending the sofa according to claim 9, characterized bythat the installation rod of the seat cushion (105) has a telescopic first connection hole (10515), a telescopic second connection hole (10516) and an installation hole of the spring seat (10517), wherein the telescopic first connection hole (10515) is rotatably connected to one end of the third telescopic rod (1063), wherein the first telescopic rod (1061) has a pivot hole of the first telescopic rod (10611), wherein the pivot hole of the first telescopic rod (10611) is rotatably connected to the telescopic second connection hole (10516), wherein one end of the first telescopic rod (1061) is connected to the first spring connection pin (107), wherein the installation hole of the spring seat (10517) is connected to the second spring connection pin (108), wherein one end of the tension spring (109) is connected to the first spring connection pin (107), wherein the other end of the tension spring (109) is connected to the second spring connecting pin (108),wherein the middle position of the first telescopic rod (1061) is connected to the connecting block of the central shaft (1068), wherein the connecting block of the central shaft (1068) comprises a connecting surface of the central shaft (10681), wherein the connecting surface of the central shaft (10681) is connected to the central shaft (3).

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