Telescopic adjusting frame device of sofa bed

Abstract

The utility model relates to the technical field of sofa beds, and discloses a sofa bed telescopic adjusting frame device which comprises a sofa base and further comprises an adjusting mechanism, a manipulator frame and a sliding rail, the top end of the sofa base is fixedly connected with the bottom end of the sliding rail, and the side face of the manipulator frame is movably connected with the side face of the sliding rail. The side face of the adjusting mechanism is movably connected with the side face of the sofa base, the top end of the adjusting mechanism is fixedly connected with the bottom end of the manipulator frame, and the adjusting mechanism comprises a guide rail; the controller controls the driving motor to operate to drive the worm to rotate, the worm is meshed with the worm gear to drive the threaded rod to rotate, the threaded block is driven to slide along the guide rail through threads, and therefore the manipulator frame is driven to slide along the sliding rail to adjust the sofa bed, and the worm gear can be driven to rotate through the worm. The worm wheel cannot drive the worm to rotate, so that the threaded rod is fixed, the mechanical energy of the sofa bed is automatically adjusted, and the labor intensity of operators is favorably reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sofa bed extension technical field more specifically relates to sofa bed extension adjusting frame device. BACKGROUND

[0002] Sofa bed refers to can sofa and bed two -purpose furniture, modern room layout advocates simplicity, and multi -functional furniture becomes the choice of the masses more and more, and sofa bed is one of them, sofa bed satisfies sitting and lying two functions, under normal circumstances, sofa bed can be placed in the sitting room or study, and functions as a seat, when the guest arrives in the evening, unfold sofa bed, and it is a bed with bedding.

[0003] Prior art deficiencies: the existing sofa bed is a drag type that relies on a sliding rail to extend and retract, and the folding and unfolding process of the bed frame is easy to operate, the sofa bed after folding is very compact and not clumsy, and the area occupied when used as a bed is generally reduced by nearly one half, however, the drag type sofa bed relies on manual operation during use, which is time-consuming and laborious. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a sofa bed extension adjusting frame device to solve the problems existing in the above background art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sofa bed extension adjusting frame device, comprising a sofa base, further comprising: an adjusting mechanism, a bed frame and a sliding rail, the top end of the sofa base is fixedly connected with the bottom end of the sliding rail, the side surface of the bed frame is movably connected with the side surface of the sliding rail, the side surface of the adjusting mechanism is movably connected with the side surface of the sofa base, the top end of the adjusting mechanism is fixedly connected with the bottom end of the bed frame, the adjusting mechanism comprises a guide rail, the side surface of the guide rail is fixedly connected with a driving structure, the side surface of the driving structure is movably connected with the side surface of the sofa base through a pin, the side surface of the guide rail movably sleeves a threaded rod, the side surface of the threaded rod is screwedly connected with a threaded block, the side surface of the guide rail is provided with a through groove, the side surface of the threaded block is movably connected with a mounting bracket through a pin, and the top end of the mounting bracket is fixedly connected with the bottom end of the bed frame.

[0006] Further, the driving structure comprises a housing, the side surface of the housing is fixedly connected with a driving motor, the output shaft of the driving motor is fixedly connected with a worm, and the side surface of the threaded rod movably sleeves a worm wheel.

[0007] Further, the side inner wall of the mounting seat is fixedly connected with a reset spring, and the side of the reset spring is movably connected with the side of the connecting block.

[0008] Further, the side inner wall of the mounting seat is fixedly connected with a reset spring, and the side of the reset spring is movably connected with the side of the connecting block.

[0009] Further, the side inner wall of the mounting seat is fixedly connected with a reset spring, and the side of the reset spring is movably connected with the side of the connecting block.

[0010] Further, the first clamping tooth is a conical structure, and the length of the connecting shaft is four times the length of the first clamping tooth.

[0011] Further, the middle axis of the sofa base, the middle axis of the adjusting mechanism and the middle axis of the bed frame coincide in the same vertical plane, and the slide rails on both sides are symmetrically distributed along the adjusting mechanism.

[0012] The technical effects and advantages of the present application are as follows:

[0013] 1. The controller controls the driving motor to drive the worm to rotate, the worm and the worm wheel are engaged to drive the threaded rod to rotate, the threaded rod drives the threaded block to slide along the guide rail, thereby driving the bed frame to slide along the slide rail, adjusting the sofa bed, and the worm can drive the worm wheel to rotate, the worm wheel cannot drive the worm to rotate, and the threaded rod is fixed, automatically adjusting the mechanical energy of the sofa bed, which is conducive to reducing the labor intensity of the operator.

[0014] 2. When the equipment is normally powered, the transmission shaft is inserted into the inside of the worm wheel, the first tooth groove and the first clamping tooth are engaged with each other, the worm wheel drives the transmission shaft to rotate, the connecting shaft is always engaged with the second tooth groove to drive the threaded rod to rotate, when the equipment cannot be normally powered, the transmission shaft is moved out of the worm wheel, the first clamping tooth is separated from the first tooth groove, the influence of the worm wheel on the rotation of the threaded rod is avoided, the bed frame is pushed to slide manually, and the sofa bed is normally used, which is conducive to improving the practicality of the sofa bed. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the present application;

[0016] Figure 2 It is a structure schematic view of A place of the present application; Figure 1 A structure schematic view of A place of the present application;

[0017] Figure 3 It is the internal structure schematic view of the driving structure of the utility model;

[0018] Figure 4 It is the cross section structure schematic view of the worm wheel of the utility model;

[0019] Figure 5 It is the connecting block structure schematic view of the utility model;

[0020] Figure 6 It is the worm wheel structure schematic view of the utility model.

[0021] The figure mark is: 1, sofa base; 2, adjusting mechanism; 201, guide rail; 202, driving structure; 2021, shell; 2022, driving motor; 2023, mounting seat; 2024, worm wheel; 2025, worm; 2026, electromagnet; 2027, reset spring; 2028, iron block; 2029, connecting block; 2210, transmission shaft; 2211, connecting shaft; 2212, first pawl; 2213, first tooth groove; 203, threaded rod; 2031, second tooth groove; 204, mounting frame; 205, threaded block; 3, push bed frame; 4, slide rail. DETAILED DESCRIPTION

[0022] The technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model, and in addition, the form of each structure recorded in the following implementation is only an example, and the sofa bed telescopic adjusting frame device involved in the utility model is not limited to each structure recorded in the following implementation, and all other implementation obtained by the ordinary skill in the art without making creative labor belongs to the scope of protection of the utility model.

[0023] REFERENCE Figures 1 to 6The utility model provides a sofa bed telescopic adjusting frame device, including sofa base 1 still include: adjusting mechanism 2, push bed frame 3 and slide rail 4, the top of sofa base 1 is fixedly connected with the bottom of slide rail 4, the side of push bed frame 3 is movably connected with the side of slide rail 4, the side of adjusting mechanism 2 is movably connected with the side of sofa base 1, the top of adjusting mechanism 2 is fixedly connected with the bottom of push bed frame 3, adjusting mechanism 2 includes guide rail 201, the side of guide rail 201 is fixedly connected with drive structure 202, the side of drive structure 202 is movably connected with the side of sofa base 1 through pin, the side of guide rail 201 movably sleeved has screw rod 203, the side of screw rod 203 is threadedly connected with threaded block 205, the side of guide rail 201 is equipped with through slot, the side of threaded block 205 is movably connected with mounting bracket 204 through pin, the top of mounting bracket 204 is fixedly connected with the bottom of push bed frame 3, slide rail 4 is installed in sofa base 1 top both sides and supports push bed frame 3, drive structure 202 side is equipped with power cord and is connected with controller through wire, when using, drive structure 202 operation is driven screw rod 203 rotation through controller control, threaded block 205 is driven along guide rail 201 sliding through screw, thereby drive push bed frame 3 along slide rail 4 sliding, adjust sofa bed.

[0024] Wherein, drive structure 202 includes casing 2021, the side of casing 2021 is fixedly connected with drive motor 2022, the output shaft of drive motor 2022 is fixedly connected with worm 2025, the side of screw rod 203 movably sleeved has worm wheel 2024, drive motor 2022 operation drives worm 2025 rotation, drive screw rod 203 rotation through worm 2025 and worm wheel 2024 intermeshing, and worm 2025 can drive worm wheel 2024 rotation through, worm wheel 2024 cannot drive worm 2025 rotation characteristic and fix screw rod 203.

[0025] The side inner wall of the shell 2021 is fixedly connected with a mounting seat 2023, the side inner wall of the mounting seat 2023 movably sleeves a connecting block 2029, the side inner wall of the worm gear 2024 is provided with a first tooth groove 2213, the side of the threaded rod 203 is provided with a second tooth groove 2031, the side of the connecting block 2029 is fixedly connected with a transmission shaft 2210, the side of the transmission shaft 2210 is provided with a first clamping tooth 2212, the side of the first clamping tooth 2212 is meshed with the side of the first tooth groove 2213, the side of the transmission shaft 2210 is fixedly connected with a connecting shaft 2211, the side of the connecting shaft 2211 is movably connected with the side of the second tooth groove 2031, when the equipment is normally powered, the transmission shaft 2210 is inserted into the inside of the worm gear 2024, so that the first tooth groove 2213 and the first clamping tooth 2212 are meshed with each other, when the worm gear 2024 rotates, the transmission shaft 2210 is driven to rotate, and the connecting shaft 2211 is always meshed with the second tooth groove 2031 to drive the threaded rod 203 to rotate, when the equipment cannot be normally powered, the transmission shaft 2210 is moved out of the worm gear 2024, so that the first clamping tooth 2212 is separated from the first tooth groove 2213, the influence of the worm gear 2024 on the rotation of the threaded rod 203 is avoided, and the sofa bed is normally used by manually pushing the bed frame 3 to slide.

[0026] The side inner wall of the mounting seat 2023 is fixedly connected with a reset spring 2027, the side of the reset spring 2027 is movably connected with the side of the connecting block 2029, and the reset spring 2027 drives the connecting block 2029 to insert the transmission shaft 2210 into the inside of the worm gear 2024.

[0027] The side inner wall of the mounting seat 2023 is fixedly connected with an electromagnet 2026, the side of the connecting block 2029 is fixedly connected with an iron block 2028, the mounting seat 2023 is provided with a battery for supplying power to the electromagnet 2026, and the electromagnet 2026 is connected with a controller through a connecting line, when manual adjustment of the sofa bed is needed, the controller controls the electromagnet 2026 to generate a magnetic force to generate an attractive force on the iron block 2028, so that the iron block 2028 drives the connecting block 2029 to move to the left side, and the transmission shaft 2210 moves out of the worm gear 2024.

[0028] The first clamping tooth 2212 is a conical structure, which facilitates the insertion of the first clamping tooth 2212 into the inside of the first tooth groove 2213, and avoids jamming, and the length of the connecting shaft 2211 is four times the length of the first clamping tooth 2212, so that the second tooth groove 2031 is always meshed with the connecting shaft 2211.

[0029] The central axis of the sofa base 1, the central axis of the adjusting mechanism 2 and the central axis of the bed frame 3 coincide in the same vertical plane, and the two side sliding rails 4 are symmetrically distributed along the adjusting mechanism 2, so that the adjusting mechanism 2 is evenly stressed.

[0030] The utility model discloses a working principle: need to adjust sofa bed, controller control drive motor 2022 operation, and electromagnet 2026 is powered off at this moment, reset spring 2027 promotes connecting block 2029 to make transmission shaft 2210 insert inside worm wheel 2024, make first tooth 2212 and first tooth slot 2213 interlock with each other, drive motor 2022 drive worm 2025 rotation, through worm 2025 and worm wheel 2024 interlock drive worm wheel 2024 rotation, through first tooth 2212 and first tooth slot 2213 interlock drive transmission shaft 2210 rotation, make connecting axle 2211 rotate, through connecting axle 2211 and second tooth slot 2031 interlock drive threaded rod 203 rotation, through screw drive threaded block 205 along the side surface of guide rail 201 slide, thereby drive push bed frame 3 along slide rail 4 slide, adjust sofa bed, drive motor 2022 cannot power supply, controller control electromagnet 2026 power on and produce magnetic force, produce suction force to iron block 2028 to make iron block 2028 drive connecting block 2029 move to left side, make transmission shaft 2210 remove worm wheel 2024, and operating personnel promote push bed frame 3 along slide rail 4 slide, carry out manual adjustment, adjust after completion, electromagnet 2026 is powered off, make transmission shaft 2210 insert inside worm wheel 2024 and fix push bed frame 3.

[0031] The above only is the preferred embodiment of the utility model and does not limit the utility model, and any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A sofa bed telescopic adjustment frame device comprising a sofa base (1), characterized in that, Also include: The top end of the sofa base (1) is fixedly connected with the bottom end of the slide rail (4), the side of the push bed frame (3) is movably connected with the side of the slide rail (4), the side of the adjusting mechanism (2) is movably connected with the side of the sofa base (1), the top end of the adjusting mechanism (2) is fixedly connected with the bottom end of the push bed frame (3), the adjusting mechanism (2) includes a guide rail (201), the side of the guide rail (201) is fixedly connected with a driving structure (202), the side of the driving structure (202) is movably connected with the side of the sofa base (1) through a pin, the side of the guide rail (201) movably sleeves a threaded rod (203), the side of the threaded rod (203) is threadedly connected with a threaded block (205), the side of the guide rail (201) is provided with a through slot, the side of the threaded block (205) movably connects with a mounting bracket (204) through a pin, and the top end of the mounting bracket (204) is fixedly connected with the bottom end of the push bed frame (3).

2. The sofa bed extension adjustment frame device according to claim 1, characterized in that: The driving structure (202) includes a housing (2021), the side of the housing (2021) is fixedly connected with a driving motor (2022), the output shaft of the driving motor (2022) is fixedly connected with a worm (2025), and the side of the threaded rod (203) movably sleeves a worm wheel (2024).

3. The sofa bed trundle adjustment frame assembly of claim 2, wherein: The side inner wall of the housing (2021) is fixedly connected with a mounting seat (2023), the side inner wall of the mounting seat (2023) movably sleeves a connecting block (2029), the side inner wall of the worm wheel (2024) is provided with a first tooth groove (2213), the side of the threaded rod (203) is provided with a second tooth groove (2031), the side of the connecting block (2029) is fixedly connected with a transmission shaft (2210), the side of the transmission shaft (2210) is provided with a first pawl (2212), the side of the first pawl (2212) is meshed with the side of the first tooth groove (2213), the side of the transmission shaft (2210) is fixedly connected with a connecting shaft (2211), and the side of the connecting shaft (2211) is movably connected with the side of the second tooth groove (2031).

4. The sofa bed trundle adjustment frame assembly of claim 3, wherein: The side inner wall of the mounting seat (2023) is fixedly connected with a return spring (2027), and the side of the return spring (2027) is movably connected with the side of the connecting block (2029).

5. The sofa bed extension adjustment frame device according to claim 3, wherein: The side inner wall of the mounting seat (2023) is fixedly connected with an electromagnet (2026), and the side of the connecting block (2029) is fixedly connected with an iron block (2028).

6. The sofa bed extension adjustment frame device of claim 3, wherein: The first pawl (2212) is a tapered structure, and the length of the connecting shaft (2211) is four times the length of the first pawl (2212).

7. The sofa bed trundle adjustment frame assembly of claim 3, wherein: The central axis of the sofa base (1), the central axis of the adjusting mechanism (2) and the central axis of the push bed frame (3) coincide in the same vertical plane, and the two sides of the slide rail (4) are symmetrically distributed along the adjusting mechanism (2).

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