Fixed lifting operation platform

Abstract

The invention relates to the technical field of furniture lifting platforms, in particular to a fixed lifting operation platform which comprises a fixed seat, a bottom storage groove is formed in the upper surface of the fixed seat, a table top storage groove is formed in the upper portion of the bottom storage groove, and a lifting table top is installed on the upper portion of the fixed seat. Two lifting modules are installed between the lifting table top and the fixing base, the lifting table top is connected with the fixing base, and lifting of the lifting table top is achieved through the lifting modules. The problems that a lifting platform on furniture adopts a crossed folding support to achieve lifting and supporting of the platform, the crossed folding support is not stable enough in the supporting process, the shearing effect can be formed between crossed folding when the platform descends, and potential safety hazards exist are solved. The vertical rotary supporting rods jointly form a straight rod to support the lifting table top, so that the overall stability of the lifting table top can be guaranteed, and the lifting table top cannot fall down.

Description

Technical Field

[0001] The invention relates to the technical field of furniture lifting platforms, in particular to a fixed lifting work platform. Background Art

[0002] Furniture refers to household appliances that are essential for humans to maintain normal life, engage in production practices and carry out social activities. Furniture includes wardrobes, cabinets, sofas, coffee tables, beds and other wooden appliances, as well as cooking utensils;

[0003] Traditional sofas, coffee tables and other storage furniture only have countertops on which a small number of items can be placed, which cannot meet daily storage needs. Therefore, existing sofas, coffee tables and other storage furniture will be installed with liftable countertops to increase the storage area and increase the usable space. The liftable countertops of sofas, coffee tables and other storage furniture are also called liftable work platforms. Generally, the liftable countertops of sofas, coffee tables and other storage furniture are lifted and supported by cross-folding.

[0004] However, the lifting platform on the furniture adopts cross-folding brackets to achieve lifting and supporting the platform. The cross-folding brackets are not stable enough when supporting, and a shearing effect will be formed between the cross-folds when the platform descends, posing a safety hazard. Therefore, it does not meet the existing needs. In this regard, we propose a fixed lifting work platform. Summary of the invention

[0005] The object of the present invention is to provide a fixed lifting work platform to solve the problem that the lifting platform on the furniture proposed in the above background technology adopts a cross-folding bracket to achieve lifting and supporting the platform, the cross-folding bracket is not stable enough when supporting, and a shearing effect will be formed between the cross-folds when the platform descends, posing a safety hazard.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixed lifting work platform, comprising a fixed seat, a bottom storage groove is provided on the upper surface of the fixed seat, a table storage groove is provided above the bottom storage groove, a lifting table is installed above the fixed seat, two lifting modules are installed between the lifting table and the fixed seat, the lifting table is connected to the fixed seat and the lifting module is used to realize the lifting of the lifting table;

[0007] The lifting module includes a plurality of intermediate connecting rods linearly distributed up and down, an adjusting motor is fixed inside the intermediate connecting rod, a control chip is fixed outside the adjusting motor, and the start or stop of the adjusting motor is controlled by the control chip, a driving gear is fixed to the output shaft end of the adjusting motor, a lead screw gear is meshedly connected to one side of the driving gear, a double-headed lead screw is fixed axially through the lead screw gear, an adjusting connecting rod is installed on the outer side of both ends of the double-headed lead screw, the adjusting connecting rod and the double-headed lead screw are threadedly connected and slidably inserted into the end of the intermediate connecting rod, a positioning slot is provided at the outer end of the adjusting connecting rod, and two rotating support rods are rotatably installed on the inner side of the positioning slot, and the two upper and lower adjacent adjusting connecting rods, the adjusting connecting rod and the lifting table, and the adjusting connecting rod and the fixed seat are all connected by a rotating support rod.

[0008] Preferably, a covering groove is provided on the bottom surface of the lifting platform, and the end of the rotating support rod connected to the lifting platform is clamped in the lifting platform, and both end portions of the positioning pin are penetrated and fixed with positioning pins, and the rotating support rod is rotatably connected to the adjusting connecting rod, the lifting platform and the fixed seat through the positioning pin.

[0009] Preferably, the overall thickness of the stacked plurality of intermediate connecting rods linearly distributed vertically is less than or equal to the depth dimension of the bottom receiving groove.

[0010] Preferably, the threads on the outer sides of both ends of the double-ended screw have completely opposite rotation directions, and limiting rings are fixed on the outer sides of both ends of the double-ended screw.

[0011] Preferably, a fixing plate is axially mounted on the limiting ring, and the fixing plate is sleeved on the outside of the double-headed screw and clamped in the inner wall of the middle connecting rod.

[0012] Preferably, the fixing plate is connected to the middle connecting rod by screws and the inner wall does not contact the double-headed screw rod, the outer surface of the limiting ring is inlaid with balls, and the limiting ring is in rolling contact with the fixing plate and the middle connecting rod through the balls.

[0013] Preferably, a circular hole is formed on the outer surface of the fixing plate, an infrared ranging sensor is installed on the inner wall of the circular hole, and the infrared ranging sensor is electrically connected to the control chip.

[0014] Preferably, a detachable platform is installed between two horizontally adjacent middle connecting rods, and the detachable platform includes a placement table top, the bottom surface of the placement table top is provided with two symmetrical docking slots, and the surface of the placement table top is provided with two symmetrical grabbing slots.

[0015] Preferably, a placement bar is fixed to the inner side of two horizontally adjacent middle connecting rods, and the placement bar is bent in an L shape and the top is clamped in the docking slot.

[0016] Preferably, the width of the grasping groove is larger than the width of an adult's finger, and the edges of the two grasping grooves are chamfered and deburred.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the process of the lifting platform rising and falling, the upper and lower adjacent middle connecting rods are always kept in a horizontal state. The middle connecting rods will not produce shearing effects during the movement, and will not shear and damage objects located between adjacent middle connecting rods, thereby reducing the potential safety hazards when the device is used and ensuring the safety of the user. In addition, the vertical rotating support rods together form a straight rod to support the lifting platform, which can ensure the overall stability of the lifting platform and prevent it from falling down.

[0019] 2. After the lifting table rises, the present invention can grab the placement table by inserting fingers into the grabbing groove, and then place the placement table between horizontally adjacent middle connecting rods, and use the placement bars to support the placement table, which can increase the storage space at the bottom of the lifting table and improve the utilization efficiency of the space. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the fixing seat of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the lifting platform of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the lifting module of the present invention;

[0024] Figure 5 for Figure 4 A magnified view of the structure at center A;

[0025] Figure 6 It is a schematic structural diagram of the detachable table plate of the present invention.

[0026] In the figure: 1. Fixed seat; 2. Bottom storage slot; 3. Table storage slot; 4. Lifting table; 5. Lifting module; 501. Middle connecting rod; 502. Adjusting connecting rod; 503. Positioning slot; 504. Placement bar; 505. Rotating support rod; 506. Positioning pin; 507. Double-headed screw; 508. Adjusting motor; 509. Driving gear; 510. Screw gear; 511. Limiting ring; 512. Fixed plate; 513. Infrared ranging sensor; 514. Control chip; 6. Removable table; 601. Placement table; 602. Docking slot; 603. Grasping slot; 7. Covering slot. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] like Figure 1 and Figure 2 As shown, the present invention provides a fixed lifting work platform, including a fixed seat 1, a bottom storage groove 2 is opened on the upper surface of the fixed seat 1, a table storage groove 3 is opened above the bottom storage groove 2, a lifting table 4 is installed above the fixed seat 1, two lifting modules 5 are installed between the lifting table 4 and the fixed seat 1, the lifting table 4 is connected to the fixed seat 1 and the lifting of the lifting table 4 is realized by the lifting module 5.

[0029] like Figures 2 to 5 As shown, the lifting module 5 includes a plurality of intermediate connecting rods 501 linearly distributed up and down, an adjusting motor 508 is fixed inside the intermediate connecting rod 501, a control chip 514 is fixed outside the adjusting motor 508, and the start or stop of the adjusting motor 508 is controlled by the control chip 514, a driving gear 509 is fixed to the output shaft end of the adjusting motor 508, one side of the driving gear 509 is meshedly connected with a screw gear 510, a double-headed screw 507 is fixed axially through the screw gear 510, and an adjusting connecting rod 502 is installed on the outer side of both ends of the double-headed screw 507, the adjusting connecting rod 502 is connected to the double-headed screw 507 by threads and is slidably inserted into the end of the intermediate connecting rod 501, a positioning slot 503 is provided at the outer end of the adjusting connecting rod 502, and two rotating support rods 505 are rotatably installed on the inner side of the positioning slot 503, and the two upper and lower adjacent adjusting connecting rods 502 and the adjusting connecting rod 50 2 is connected to the lifting platform 4, the adjusting link 502 and the fixed seat 1 by a rotating support rod 505. The bottom surface of the lifting platform 4 is provided with a covering groove 7. The end of the rotating support rod 505 connected to the lifting platform 4 is clamped in the lifting platform 4. The two ends of the locating pin 506 are penetrated and fixed with the locating pin 506. The rotating support rod 505 and the adjusting link 502, the lifting platform 4 and the fixed seat 1 are rotatably connected through the locating pin 506. The adjusting motor 508 drives the driving gear 509, the screw gear 510 and the double-headed screw 507 to rotate, so that the two adjusting links 502 on the outer sides of the two ends of the double-headed screw 507 are close to or away from each other. The adjusting link 502 is used to pull or push the rotating support rod 505 connected to its end, so that the distance between the two adjacent middle links 501 can be controlled to be reduced or increased, so as to realize the control of the descent or ascent of the lifting platform 4.

[0030] The threads on the outer sides of the two ends of the double-headed screw rod 507 have completely opposite rotation directions. Limiting rings 511 are fixed on the outer sides of the two ends of the double-headed screw rod 507. A fixing plate 512 is axially installed on the limiting ring 511. The fixing plate 512 is sleeved on the outer side of the double-headed screw rod 507 and is clamped in the inner wall of the intermediate connecting rod 501. The fixing plate 512 and the intermediate connecting rod 501 are connected by screws and the inner wall does not contact the double-headed screw rod 507. The outer surface of the limiting ring 511 is inlaid with balls. The limiting ring 511 is in rolling contact with the fixing plate 512 and the intermediate connecting rod 501 through the balls. The position of the double-headed screw rod 507 is limited by the limiting ring 511 inlaid with balls to ensure that the double-headed screw rod 507 does not move along its axial direction during rotation.

[0031] A circular hole is provided on the outer surface of the fixing plate 512, and an infrared ranging sensor 513 is installed on the inner wall of the circular hole. The infrared ranging sensor 513 is electrically connected to the control chip 514. The infrared ranging sensor 513 is used to monitor the moving distance of the adjusting connecting rod 502, and the monitoring signal is fed back to the control chip 514 in real time, so that the moving distance of the adjusting connecting rod 502 can be accurately controlled.

[0032] The overall thickness of multiple vertically linearly distributed intermediate connecting rods 501 after stacking is less than or equal to the depth dimension of the bottom storage groove 2, ensuring that the lifting platform 4 can be completely stored in the platform storage groove 3 and the upper surface remains flush with the upper surface of the fixing seat 1.

[0033] like Figure 1 and Figure 6 As shown, a detachable table plate 6 is installed between two horizontally adjacent middle connecting rods 501, and the detachable table plate 6 includes a placement table top 601. Two symmetrical docking slots 602 are provided on the bottom surface of the placement table top 601, and two symmetrical grabbing slots 603 are provided on the surface of the placement table top 601. A placement bar 504 is fixed on the inner side of the two horizontally adjacent middle connecting rods 501. The placement bar 504 is bent in an L shape and the top is clamped in the docking slot 602. By docking the docking slot 602 with the placement bar 504, the placement table top 601 can be stably placed between the two horizontally adjacent middle connecting rods 501, and the placement table top 601 can be taken after being placed.

[0034] The width of the grabbing groove 603 is larger than the width of an adult's finger. The edges of the two grabbing grooves 603 are chamfered and deburred to facilitate the user to grab the placement table 601 and ensure that the placement table 601 will not fall from the user's hand when taking or placing.

[0035] Working principle: Turn on the power of the device as a whole. After the power is turned on, start the adjustment motor 508 to make the adjustment motor 508 rotate in the forward direction. The adjustment motor 508 drives the driving gear 509, the screw gear 510 and the double-headed screw 507 to rotate. At this time, the adjustment connecting rod 502 located on the outer side of the two ends of the double-headed screw 507 will extend from the end of the middle connecting rod 501. When the adjustment connecting rod 502 extends, it will push the rotating support rod 505 at its end. At this time, the rotating support rod 505 will change from an inclined state to a vertical state. During the movement of the adjusting link 502, the infrared distance measuring sensor 513 monitors the moving distance of the adjusting link 502 in real time and feeds back the signal to the control chip 514 until the rotating support rod 505 at the end of the adjusting link 502 is vertically aligned with the upper surface of the fixing seat 1. At this time, the control chip 514 sends a stop signal to the adjusting motor 508 and the adjusting motor 508 stops running. At this time, the upper and lower adjacent rotating support rods 505 will jointly form a straight rod with a value pointing upward to support the lifting platform 4, thereby lifting the lifting platform 4.

[0036] When the lifting platform 4 is lowered, it is only necessary to start the adjusting motor 508 in the reverse direction so that the adjusting motor 508 controls the double-headed screw rod 507 to rotate in the reverse direction, so that the adjusting connecting rod 502 shrinks toward the end of the middle connecting rod 501. When the adjusting connecting rod 502 shrinks, the rotating support rod 505 is pulled, and at this time, the upper and lower adjacent middle connecting rods 501 will approach each other and enter the bottom storage groove 2, thereby realizing the lowering of the lifting platform 4. In the process of rising and falling of the lifting platform 4, the upper and lower adjacent middle connecting rods 501 always remain in a horizontal state. The middle connecting rod 501 will not produce a shearing effect during the movement, and will not shear and damage the objects located between the adjacent middle connecting rods 501, thereby reducing the safety hazards when the device is used and ensuring the safety of the user. In addition, the vertically erected rotating support rods 505 together form a straight rod to support the lifting platform 4, which can ensure the overall stability of the lifting platform 4 and prevent it from falling downward.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A fixed lifting work platform, comprising a fixed seat (1), characterized in that: The upper surface of the fixed seat (1) is provided with a bottom storage groove (2), a table storage groove (3) is provided above the bottom storage groove (2), a lifting table (4) is installed above the fixed seat (1), two lifting modules (5) are installed between the lifting table (4) and the fixed seat (1), the lifting table (4) is connected to the fixed seat (1) and the lifting of the lifting table (4) is achieved through the lifting modules (5); The lifting module (5) comprises a plurality of intermediate connecting rods (501) linearly distributed up and down, an adjusting motor (508) is fixed inside the intermediate connecting rod (501), a control chip (514) is fixed outside the adjusting motor (508), and the start or stop of the adjusting motor (508) is controlled by the control chip (514), a driving gear (509) is fixed to the output shaft end of the adjusting motor (508), one side of the driving gear (509) is meshingly connected with a lead screw gear (510), a double-headed lead screw (507) is fixed axially through the lead screw gear (510), and the Adjustment links (502) are installed on the outer sides of both ends of the double-headed screw rod (507). The adjustment links (502) are connected to the double-headed screw rod (507) by threads and are slidably inserted into the ends of the intermediate links (501). The outer ends of the adjustment links (502) are provided with positioning slots (503). Two rotating support rods (505) are rotatably installed on the inner sides of the positioning slots (503). The two upper and lower adjacent adjustment links (502), the adjustment links (502) and the lifting platform (4), and the adjustment links (502) and the fixed seat (1) are all connected by rotating support rods (505).

2. A fixed lifting work platform according to claim 1, characterized in that: The bottom surface of the lifting platform (4) is provided with a covering groove (7); the end of a rotating support rod (505) connected to the lifting platform (4) is clamped in the lifting platform (4); both ends of the positioning pin (506) are penetrated and fixed with positioning pins (506); the rotating support rod (505) is rotatably connected to the adjusting connecting rod (502), the lifting platform (4) and the fixed seat (1) through the positioning pins (506).

3. A fixed lifting work platform according to claim 1, characterized in that: The overall thickness of the plurality of middle connecting rods (501) linearly distributed up and down after being stacked is less than or equal to the depth dimension of the bottom receiving groove (2).

4. A fixed lifting work platform according to claim 1, characterized in that: The threads on the outer sides of the two ends of the double-ended screw rod (507) have completely opposite rotation directions, and limit rings (511) are fixed on the outer sides of the two ends of the double-ended screw rod (507).

5. A fixed lifting work platform according to claim 4, characterized in that: A fixing plate (512) is axially mounted on the limiting ring (511), and the fixing plate (512) is sleeved on the outer side of the double-headed screw rod (507) and clamped in the inner wall of the middle connecting rod (501).

6. A fixed lifting work platform according to claim 5, characterized in that: The fixing plate (512) is connected to the intermediate connecting rod (501) by means of screws and the inner wall thereof does not contact the double-headed screw rod (507); the outer surface of the limiting ring (511) is inlaid with balls; the limiting ring (511) is in rolling contact with the fixing plate (512) and the intermediate connecting rod (501) by means of the balls.

7. The fixed lifting work platform according to claim 5, characterized in that: A circular hole is formed on the outer surface of the fixing plate (512), an infrared distance measuring sensor (513) is installed on the inner wall of the circular hole, and the infrared distance measuring sensor (513) is electrically connected to the control chip (514).

8. The fixed lifting work platform according to claim 1, characterized in that: A detachable platform (6) is installed between two horizontally adjacent middle connecting rods (501), and the detachable platform (6) includes a placement table (601), the bottom surface of the placement table (601) is provided with two symmetrical docking slots (602), and the surface of the placement table (601) is provided with two symmetrical grabbing slots (603).

9. A fixed lifting work platform according to claim 8, characterized in that: A placement bar (504) is fixed on the inner side of two horizontally adjacent middle connecting rods (501), and the placement bar (504) is bent in an L shape and the top is clamped in the docking slot (602).

10. The fixed lifting work platform according to claim 8, characterized in that: The width of the gripping groove (603) is larger than the width of an adult's finger, and the edges of the two gripping grooves (603) are chamfered and deburred.

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