Supporting device capable of automatically adjusting height based on floor height

By introducing I-beam slide rails and adjustment mechanisms into the support device, the problem of fixed height in traditional support devices is solved, enabling automatic height adjustment and stable connection of the mounting frame, thus improving the adaptability and safety of building construction.

CN120968236APending Publication Date: 2025-11-18JIANGSU XINSUYANG CONSTR CO LTD
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Patent Information

Application Number
CN202511389586.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-26
Publication Date
2025-11-18

AI Technical Summary

Technical Problem

The vertical pipe height of traditional support devices is fixed and cannot be adjusted, resulting in insufficient adaptability and stability of the support devices in building construction.

Method used

The system uses I-beam slide rails and slide blocks, combined with adjustment mechanisms, connection mechanisms, limit components, and support mechanisms. The height of the support rod is adjusted by a drive motor driving a lead screw, and the mounting frame is stably connected and supported by a connecting plate and a push rod.

Benefits of technology

It enables automatic adjustment of the support device height, improves adaptability and stability during construction, and ensures the safety of the formwork system and concrete structure.

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Abstract

The invention discloses a supporting device capable of automatically adjusting the height based on the floor height, and relates to the technical field of house building construction, the supporting device comprises an I-shaped steel sliding rail and a plurality of sliding seats connected to the I-shaped steel sliding rail in a sliding mode; a vertical plate is fixedly connected to the top of the sliding seat, an adjusting mechanism used for adjusting the height is mounted on the vertical plate, and the adjusting mechanism comprises a mounting frame mounted on the vertical plate, a driving motor mounted at the bottom of the mounting frame, a lead screw fixedly connected to an output shaft of the driving motor and a first guide rod fixedly connected to the mounting frame; a moving plate is in threaded connection with the lead screw, and the moving plate is in sliding connection with the first guide rod; the top of the moving plate is fixedly connected with a supporting rod, and the top of the supporting rod is fixedly connected with a supporting plate. The height of the supporting device can be conveniently adjusted.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of house building construction, in particular to a support device capable of automatically adjusting the height based on the floor height. BACKGROUND

[0002] At present, in the process of house building construction, the support device is a key facility for ensuring the safety and stability of the formwork system, the concrete structure and the temporary load, and is widely applied in large-span or high-rise construction of cast-in-place concrete floor beams and columns.

[0003] The traditional support device is a steel pipe type scaffold. However, the height of the vertical pipe of the steel pipe type scaffold in the prior art is generally fixed, so it is inconvenient to adjust the height of the support device. SUMMARY

[0004] The application provides a support device capable of automatically adjusting the height based on the floor height, which is convenient for adjusting the height of the support device, and adopts the following technical scheme: The support device capable of automatically adjusting the height based on the floor height comprises an I-shaped steel sliding rail and a plurality of sliding seats slidably connected to the I-shaped steel sliding rail; the top of each sliding seat is fixedly connected with a vertical plate, and a height adjusting mechanism is installed on the vertical plate; the height adjusting mechanism comprises a mounting bracket installed on the vertical plate, a driving motor installed at the bottom of the mounting bracket, a lead screw fixedly connected to the output shaft of the driving motor, and a first guide rod fixedly connected to the mounting bracket; a moving plate is threadedly connected to the lead screw, and the moving plate is slidably connected to the first guide rod; a support rod is fixedly connected to the top of the moving plate, and a support plate is fixedly connected to the top of the support rod.

[0005] Through the above scheme, when the height of the support device needs to be adjusted, the driving motor is started first, at this time the output shaft of the driving motor drives the lead screw to rotate, the lead screw drives the moving plate to move vertically, the moving plate drives the support rod to move vertically, and the support rod drives the support plate to move vertically, so that the height of the support device can be adjusted; in summary, the height adjusting mechanism is convenient for adjusting the height of the support device.

[0006] Preferably, a connecting mechanism is arranged between every two mounting brackets.

[0007] Through the above scheme, the connecting mechanism can improve the stability between every two mounting brackets.

[0008] Preferably, the connecting mechanism comprises two connecting plates installed between the two mounting frames, two strip-shaped holes respectively formed in the two connecting plates, two second guide rods respectively installed in the two strip-shaped holes, two first sliding sleeves respectively and slidably connected to the two second guide rods, two third guide rods respectively and fixedly connected to the two vertical plates, two second sliding sleeves respectively and slidably connected to the two third guide rods, two fourth guide rods respectively and fixedly connected to the top of the two sliding seats, and two third sliding sleeves respectively and slidably connected to the two fourth guide rods; a first push rod is hingedly connected between the first sliding sleeve and the second sliding sleeve, a second push rod is hingedly connected between the second sliding sleeve and the third sliding sleeve, the opposite inner sides of the two third sliding sleeves are respectively and fixedly connected with third push rods, and the two third push rods are distributed in a staggered manner; the opposite inner sides of the two first sliding sleeves are respectively and fixedly connected with an inserting rod and a connecting frame, the inserting rod is inserted into the inner cavity of the connecting frame, and the side wall of the connecting frame is provided with a limiting assembly for limiting the inserting rod.

[0009] By using the above scheme, when the two mounting frames need to be connected, the two vertical plates are first pushed towards each other, the two vertical plates move towards each other to drive the two third push rods to move towards each other, at this time, the two third push rods drive the two third sliding sleeves to move away from each other in a staggered manner, then the two third sliding sleeves drive the two second sliding sleeves to move upwards under the action of the two second push rods, next the two second sliding sleeves drive the two first sliding sleeves to move towards each other under the action of the two first push rods, the two first sliding sleeves drive the inserting rod and the connecting frame to be inserted, and then the inserting rod is limited by the limiting assembly, so that the two mounting frames can be connected. In summary, the connecting mechanism is convenient for connecting the two mounting frames.

[0010] Preferably, the limiting assembly comprises a through hole formed in the side wall of the connecting frame, a limiting plate slidably connected to the through hole, a fifth guide rod fixedly connected to the outer side wall of the connecting frame, a fourth sliding sleeve slidably connected to the fifth guide rod, and a limiting spring fixedly connected between the fourth sliding sleeve and the connecting frame; the side wall of the inserting rod is provided with a limiting groove, one end of the limiting plate close to the inserting rod is provided with a slope and is inserted into the limiting groove, and the slope is matched with the side wall of the inserting rod; the side wall of the connecting frame is provided with an electric element for separating the limiting plate and the limiting groove.

[0011] By using the above scheme, when the inserting rod is inserted into the connecting frame, the inserting rod drives the limiting plate to move downwards under the action of the slope at this time, the limiting plate moves downwards to drive the fourth sliding sleeve to move downwards, and the fourth sliding sleeve moves downwards to exert force on the limiting spring; when the inserting rod is inserted into the connecting frame, the fourth sliding sleeve drives the limiting plate to be inserted into the limiting groove under the action of the limiting spring, so that the inserting rod can be limited. In summary, the limiting assembly is convenient for limiting the inserting rod.

[0012] Preferably, the electric element comprises an electric push rod mounted on the side wall of the connecting frame and a push plate fixed to the output end of the electric push rod; the push plate is capable of abutting against one side of the fifth sliding sleeve close to the connecting frame.

[0013] By using the above scheme, when the limiting plate needs to be separated from the limiting groove, the electric push rod is first started, at this time the output end of the electric push rod drives the push plate to move downward, the push plate moves downward to drive the fourth sliding sleeve to move downward, the fourth sliding sleeve moves downward to drive the limiting plate to move downward, and the limiting plate moves downward to separate the limiting plate from the limiting groove; in summary, the electric element is set, which facilitates the separation of the limiting plate from the limiting groove.

[0014] Preferably, a plurality of first return springs are fixed between the first sliding sleeve and the inner wall of one end of the strip-shaped hole.

[0015] By using the above scheme, the first return spring is set, which facilitates the return of the first sliding sleeve when the limiting plate is separated from the limiting groove. Preferably, a first supporting mechanism is mounted on the top of each connecting plate, the first supporting mechanism comprises a mounting plate fixed to the top of the connecting plate, a rotating plate rotatably connected to the mounting plate, a driving rod fixed to the top of the first sliding sleeve, and an inclined plate fixed to the side wall of the mounting frame; the rotating plate is capable of supporting the inclined plate under the action of the driving rod.

[0016] By using the above scheme, when the two first sliding sleeves move towards each other, the two driving rods move towards each other, and then the two driving rods drive the two rotating plates to rotate towards the inclined plate, so as to support the inclined plate and further support the mounting frame; in summary, the first supporting mechanism is set, which facilitates the support of the mounting frame.

[0017] Preferably, a second supporting mechanism is mounted on the second sliding sleeve, the second supporting mechanism comprises an inclined rod fixed to the side wall of the second sliding sleeve and a supporting block fixed to the top of the inclined rod, and the supporting block abuts against the bottom of the mounting frame.

[0018] By using the above scheme, when the second sliding sleeve moves upward under the action of the second push rod, the inclined rod moves upward, the inclined rod drives the supporting block to move upward, and the upward movement of the supporting block can support the bottom of the mounting frame; in summary, the second supporting mechanism is set, which facilitates the further support of the mounting frame.

[0019] Preferably, a through hole is formed at the top of the slide base corresponding to the third sliding sleeve, and an abutting mechanism is mounted in the through hole, the abutting mechanism comprising an abutting plate slidably connected to the through hole, a friction part fixed to the bottom of the abutting plate, a spherical surface arranged at the top of the abutting plate, a reset block fixed to one side of the abutting plate, a reset slot formed in the sidewall of the through hole and used for sliding the reset block, and a second reset spring fixed to the bottom of the reset block; one end of the second reset spring away from the reset block is fixed to the bottom wall of the reset slot; the third sliding sleeve can drive the abutting plate to move downward under the action of the spherical surface, and the abutting plate can abut against the top of the I-shaped slide rail under the action of the friction part.

[0020] By adopting the above scheme, when the two third sliding sleeves move away from each other under the action of the third push rod, the third sliding sleeve drives the abutting plate to move downward under the action of the spherical surface at this time, and the abutting plate drives the friction part to move downward, so that the friction between the slide base and the I-shaped slide rail can be improved, thereby the stability of the supporting device can be supported.

[0021] Preferably, a plurality of spherical blocks are movably embedded at the bottom of the slide base.

[0022] By adopting the above scheme, the spherical blocks are arranged to facilitate the movement of the slide base.

[0023] In summary, the present application has the following beneficial effects: When it is necessary to adjust the height of the supporting device, the driving motor is first started, at this time the output shaft of the driving motor drives the lead screw to rotate, the lead screw drives the moving plate to move vertically, the moving plate drives the supporting rod to move vertically, and the supporting rod drives the supporting plate to move vertically, so that the height of the supporting device can be adjusted; in summary, the arrangement of the adjusting mechanism facilitates the adjustment of the height of the supporting device. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a whole structure schematic view of the embodiment of the present application.

[0025] Figure 2 It is a structure schematic view of the adjusting mechanism in the embodiment of the present application.

[0026] Figure 3 It is a structure schematic view of the connecting mechanism in the embodiment of the present application.

[0027] Figure 4 It is a structure schematic view of the limiting assembly in the embodiment of the present application.

[0028] Figure 5 It is a structure schematic view of the abutting mechanism in the embodiment of the present application.

[0029] Explanation of reference numerals in the attached drawings: 1. I-beam slide rail; 2. Slide block; 21. Vertical plate; 22. Through hole; 221. Reset groove; 23. Spherical block; 3. Adjustment mechanism; 31. Mounting bracket; 32. Drive motor; 33. Lead screw; 34. First guide rod; 35. Moving plate; 36. Support rod; 37. Support plate; 4. Connecting mechanism; 41. Connecting plate; 411. Strip hole; 42. Second guide rod; 421. First sliding sleeve; 422. First reset spring; 43. Third guide rod; 431. Second sliding sleeve; 44. Fourth guide rod; 441. Third sliding sleeve; 45. First push rod; 46. Second... 47. Push rod; 48. Insert rod; 49. Connecting frame; 5. Limiting assembly; 51. Through hole; 52. Limiting plate; 521. Inclined surface; 53. Fifth guide rod; 531. Fourth sliding sleeve; 54. Limiting spring; 55. Limiting groove; 56. Electric push rod; 57. Push plate; 6. First support mechanism; 61. Mounting plate; 62. Rotating plate; 63. Drive rod; 64. Inclined plate; 7. Second support mechanism; 71. Inclined rod; 72. Support block; 8. Abutting mechanism; 81. Abutting plate; 811. Friction part; 812. Spherical surface; 82. Reset block; 83. Second reset spring. Detailed Implementation

[0030] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "bottom," and "top" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0031] This application discloses a support device with automatically adjustable height based on floor height, such as... Figure 1 and Figure 2 As shown, it includes an I-beam slide rail 1 and multiple slide blocks 2 that slide along the length of the I-beam slide rail 1 and are connected to the I-beam slide rail 1; each slide block 2 has a vertical plate 21 fixedly connected to its top, and an adjustment mechanism 3 for adjusting the height is installed on the vertical plate 21.

[0032] like Figure 1 and Figure 2As shown, the adjusting mechanism 3 comprises a mounting frame 31 vertically mounted on the vertical plate 21, a driving motor 32 vertically mounted on the bottom of the mounting frame 31, a lead screw 33 vertically fixed to the output shaft of the driving motor 32, and a first guide rod 34 vertically fixed to the mounting frame 31; the lead screw 33 is threadedly connected with a moving plate 35, the first guide rod 34 penetrates through the moving plate 35, and the moving plate 35 is vertically slidingly connected to the first guide rod 34; the top of the moving plate 35 is vertically fixed with a support rod 36, and the top of the support rod 36 is horizontally fixed with a support plate 37. When it is necessary to adjust the height of the supporting device, the driving motor 32 is started first, at this time the output shaft of the driving motor 32 drives the lead screw 33 to rotate, the lead screw 33 drives the moving plate 35 to move vertically, the moving plate 35 drives the support rod 36 to move vertically, and the support rod 36 drives the support plate 37 to move vertically, so that the height of the supporting device can be adjusted; in summary, the adjusting mechanism 3 is arranged, which facilitates the adjustment of the height of the supporting device.

[0033] As shown in Figure 2 and Figure 3 Each two mounting frames 31 are provided with a connecting mechanism 4, and the connecting mechanism 4 can improve the stability between each two mounting frames 31.

[0034] As shown in Figure 2 and Figure 3As shown, the connecting mechanism 4 comprises two connecting plates 41 horizontally mounted between the two mounting racks 31, two strip-shaped holes 411 respectively formed in the two connecting plates 41, two second guide rods 42 respectively horizontally mounted in the two strip-shaped holes 411, two first sliding sleeves 421 respectively slidably connected with the two second guide rods 42 along the length direction of the connecting plates 41, two third guide rods 43 respectively vertically fixed to the two vertical plates 21, two second sliding sleeves 431 respectively slidably connected with the two third guide rods 43 in the vertical direction, two fourth guide rods 44 respectively horizontally fixed to the top of the two sliding seats 2, and two third sliding sleeves 441 respectively slidably connected with the two fourth guide rods 44 along the length direction of the connecting plates 41. The first sliding sleeves 421 and the second sliding sleeves 431 are hingedly connected with a first push rod 45, the second sliding sleeves 431 and the third sliding sleeves 441 are hingedly connected with a second push rod 46, the opposite inner sides of the two third sliding sleeves 441 are respectively horizontally fixed with a third push rod 47, and the two third push rods 47 are distributed in a staggered manner. The opposite inner sides of the two first sliding sleeves 421 are respectively fixed with a plug rod 48 and a connecting frame 49, the plug rod 48 is inserted into the inner cavity of the connecting frame 49, and the side wall of the connecting frame 49 is provided with a limiting assembly 5 for limiting the plug rod 48. When it is necessary to connect the two mounting racks 31, the two vertical plates 21 are first pushed towards each other, the two vertical plates 21 move towards each other to drive the two third push rods 47 to move towards each other, at this time the two third push rods 47 drive the two third sliding sleeves 441 to move away from each other in a staggered manner, then the two third sliding sleeves 441 drive the two second sliding sleeves 431 to move upwards under the action of the two second push rods 46, next the two second sliding sleeves 431 drive the two first sliding sleeves 421 to move towards each other under the action of the two first push rods 45, the two first sliding sleeves 421 drive the plug rod 48 to be inserted into the connecting frame 49, next the plug rod 48 is limited by the limiting assembly 5, so that the two mounting racks 31 can be connected. In summary, the connecting mechanism 4 is convenient for connecting the two mounting racks 31.

[0035] As Figure 3 and Figure 4As shown in the figure, the limiting assembly 5 comprises a through hole 51 formed in the side wall of the connecting frame 49, a limiting plate 52 vertically slidingly connected to the through hole 51, a fifth guide rod 53 fixed to the outer side wall of the connecting frame 49, a fourth sliding sleeve 531 vertically slidingly connected to the fifth guide rod 53, and a limiting spring 54 vertically fixed between the fourth sliding sleeve 531 and the connecting frame 49. The side wall of the insertion rod 48 is provided with a limiting groove 55, one end of the limiting plate 52 close to the insertion rod 48 is provided with a slope 521 and is inserted into the limiting groove 55, and the slope 521 is matched with the side wall of the insertion rod 48. The side wall of the connecting frame 49 is provided with an electric element for separating the limiting plate 52 and the limiting groove 55. When the insertion rod 48 is inserted into the connecting frame 49, the insertion rod 48 drives the limiting plate 52 to move downward under the action of the slope 521, the downward movement of the limiting plate 52 drives the fourth sliding sleeve 531 to move downward, and the downward movement of the fourth sliding sleeve 531 exerts force on the limiting spring 54. When the insertion rod 48 is inserted into the connecting frame 49, the fourth sliding sleeve 531 drives the limiting plate 52 to be inserted into the limiting groove 55 under the action of the limiting spring 54, so that the insertion rod 48 can be limited. In summary, the limiting assembly 5 is convenient for limiting the insertion rod 48.

[0036] As shown in the figure, Figure 3 and Figure 4 The electric element comprises an electric push rod 56 vertically installed on the side wall of the connecting frame 49 and a push plate 57 fixed to the output end of the electric push rod 56. The push plate 57 can abut against one side of the fifth sliding sleeve close to the connecting frame 49. When it is needed to separate the limiting plate 52 and the limiting groove 55, the electric push rod 56 is started first, the output end of the electric push rod 56 drives the push plate 57 to move downward, the downward movement of the push plate 57 drives the fourth sliding sleeve 531 to move downward, the downward movement of the fourth sliding sleeve 531 drives the limiting plate 52 to move downward, and the downward movement of the limiting plate 52 can separate the limiting plate 52 and the limiting groove 55. In summary, the electric element is convenient for separating the limiting plate 52 and the limiting groove 55.

[0037] As shown in the figure, Figure 2 and Figure 3 The first reset spring 422 is horizontally fixed between the first sliding sleeve 421 and the inner wall of one end of the strip-shaped hole 411. When the limiting plate 52 and the limiting groove 55 are separated, the first reset spring 422 is convenient for resetting the first sliding sleeve 421.

[0038] As shown in the figure, Figure 1 and Figure 2As shown in the drawings, the top of each connecting plate 41 is provided with a first supporting mechanism 6, which comprises a mounting plate 61 fixedly connected to the top of the connecting plate 41, a rotating plate 62 rotatably connected to the mounting plate 61, a driving rod 63 fixedly connected to the top of the first sliding sleeve 421, and an inclined plate 64 fixedly connected to the side wall of the mounting frame 31; the rotating plate 62 can support the inclined plate 64 under the action of the driving rod 63. When the two first sliding sleeves 421 move towards each other, the two driving rods 63 are driven to move towards each other, and then the two driving rods 63 drive the two rotating plates 62 to rotate towards the inclined plate 64, so as to support the inclined plate 64, and further support the mounting frame 31. In summary, the first supporting mechanism 6 is arranged to facilitate the support of the mounting frame 31.

[0039] As shown in the drawings, Figure 1 and Figure 2 The second sliding sleeve 431 is provided with a second supporting mechanism 7, which comprises an inclined rod 71 fixedly connected to the side wall of the second sliding sleeve 431, and a supporting block 72 fixedly connected to the top of the inclined rod 71, and the supporting block 72 abuts against the bottom of the mounting frame 31. When the second sliding sleeve 431 moves upwards under the action of the second push rod 46, the inclined rod 71 moves upwards, the inclined rod 71 drives the supporting block 72 to move upwards, and the supporting block 72 moves upwards to support the bottom of the mounting frame 31. In summary, the second supporting mechanism 7 is arranged to further support the mounting frame 31.

[0040] As shown in the drawings, Figure 1 and Figure 5 The third sliding sleeve 441 is provided with a through hole 22 on the top of the sliding seat 2, and an abutting mechanism 8 is arranged in the through hole 22. The abutting mechanism 8 comprises an abutting plate 81 slidably connected to the through hole 22 in the vertical direction, a friction part 811 fixedly connected to the bottom of the abutting plate 81, a spherical surface 812 arranged on the top of the abutting plate 81, a reset block 82 fixedly connected to one side of the abutting plate 81, a reset slot 221 arranged on the side wall of the through hole 22 and used for sliding the reset block 82 in the vertical direction, and a second reset spring 83 fixedly connected to the bottom of the reset block 82. One end of the second reset spring 83 away from the reset block 82 is fixedly connected to the bottom wall of the reset slot 221. The third sliding sleeve 441 can drive the abutting plate 81 to move downwards under the action of the spherical surface 812, and the abutting plate 81 can abut against the top of the I-shaped steel slide rail 1 under the action of the friction part 811. When the two third sliding sleeves 441 move away from each other under the action of the third push rod 47, the third sliding sleeve 441 drives the abutting plate 81 to move downwards under the action of the spherical surface 812, and the abutting plate 81 drives the friction part 811 to move downwards, so as to increase the friction between the sliding seat 2 and the I-shaped steel slide rail 1, thereby improving the stability of the supporting device.

[0041] As shown in the drawings, Figure 5As shown, the bottom of the sliding seat 2 is movably embedded with a plurality of spherical blocks 23. The spherical blocks 23 are arranged to facilitate the movement of the sliding seat 2.

[0042] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the present application shall be encompassed within the protection scope of the present application.

Claims

1. A support device with automatically adjustable height based on floor height, characterized in that: The system includes an I-beam slide rail (1) and multiple slide blocks (2) slidably connected to the I-beam slide rail (1); a vertical plate (21) is fixedly connected to the top of the slide block (2), and an adjustment mechanism (3) for adjusting the height is installed on the vertical plate (21). The adjustment mechanism (3) includes a mounting bracket (31) installed on the vertical plate (21), a drive motor (32) installed at the bottom of the mounting bracket (31), a lead screw (33) fixedly connected to the output shaft of the drive motor (32), and a first guide rod (34) fixedly connected to the mounting bracket (31); a moving plate (35) is threadedly connected to the lead screw (33), and the moving plate (35) is slidably connected to the first guide rod (34); a support rod (36) is fixedly connected to the top of the moving plate (35), and a support plate (37) is fixedly connected to the top of the support rod (36).

2. The support device based on automatically adjustable floor height according to claim 1, characterized in that: A connecting mechanism (4) is provided between each two mounting brackets (31).

3. The support device based on automatically adjustable floor height according to claim 2, characterized in that: The connecting mechanism (4) includes two connecting plates (41) installed between the two mounting brackets (31), two slotted holes (411) respectively opened in the two connecting plates (41), two second guide rods (42) respectively installed in the two slotted holes (411), two first sliding sleeves (421) respectively slidably connected to the two second guide rods (42), two third guide rods (43) respectively fixed to the two vertical plates (21), two second sliding sleeves (431) respectively slidably connected to the two third guide rods (43), two fourth guide rods (44) respectively fixed to the top of the two slide blocks (2), and two second sliding sleeves (431) respectively slidably connected to the two fourth guide rods (44). Three sliding sleeves (441); a first push rod (45) is hinged between the first sliding sleeve (421) and the second sliding sleeve (431), a second push rod (46) is hinged between the second sliding sleeve (431) and the third sliding sleeve (441), and a third push rod (47) is fixedly connected to the opposite inner side of the two third sliding sleeves (441), and the two third push rods (47) are staggered; an insert rod (48) and a connecting frame (49) are fixedly connected to the opposite inner side of the two first sliding sleeves (421), the insert rod (48) is inserted into the inner cavity of the connecting frame (49), and a limiting component (5) for limiting the insert rod (48) is installed on the side wall of the connecting frame (49).

4. A support device with automatically adjustable floor height according to claim 3, characterized in that: The limiting component (5) includes a through hole (51) on the side wall of the connecting frame (49), a limiting plate (52) slidably connected to the through hole (51), a fifth guide rod (53) fixed to the outer side wall of the connecting frame (49), a fourth sliding sleeve (531) slidably connected to the fifth guide rod (53), and a limiting spring (54) fixed between the fourth sliding sleeve (531) and the connecting frame (49); the side wall of the insert rod (48) has a limiting groove (55), and the end of the limiting plate (52) near the insert rod (48) is provided with an inclined surface (521) and inserted into the limiting groove (55), and the inclined surface (521) matches the side wall of the insert rod (48); the side wall of the connecting frame (49) is equipped with an electric component for separating the limiting plate (52) from the limiting groove (55).

5. A support device with automatically adjustable height based on floor height according to claim 4, characterized in that: The electric component includes an electric push rod (56) mounted on the side wall of the connecting frame (49) and a push plate (57) fixed to the output end of the electric push rod (56); the push plate (57) can abut against the side of the fifth sliding sleeve near the connecting frame (49).

6. A support device with automatically adjustable height based on floor height according to claim 3, characterized in that: A plurality of first return springs (422) are fixedly connected between the first sliding sleeve (421) and the inner wall of one end of the strip hole (411).

7. A support device with automatically adjustable height based on floor height according to claim 3, characterized in that: Each of the connecting plates (41) is equipped with a first support mechanism (6) on its top. The first support mechanism (6) includes a mounting plate (61) fixed to the top of the connecting plate (41), a rotating plate (62) rotatably connected to the mounting plate (61), a drive rod (63) fixed to the top of the first sliding sleeve (421), and an inclined plate (64) fixed to the side wall of the mounting frame (31). The rotating plate (62) can support the inclined plate (64) under the action of the drive rod (63).

8. A support device with automatically adjustable floor height according to claim 3, characterized in that: The second sliding sleeve (431) is equipped with a second support mechanism (7), which includes a diagonal rod (71) fixed to the side wall of the second sliding sleeve (431) and a support block (72) fixed to the top of the diagonal rod (71). The support block (72) abuts against the bottom of the mounting frame (31).

9. A support device with automatically adjustable height based on floor height according to claim 3, characterized in that: Corresponding to the third sliding sleeve (441), a through hole (22) is provided on the top of the sliding block (2). An abutment mechanism (8) is installed in the through hole (22). The abutment mechanism (8) includes an abutment plate (81) slidably connected to the through hole (22), a friction part (811) fixed to the bottom of the abutment plate (81), a spherical surface (812) provided on the top of the abutment plate (81), a reset block (82) fixed to one side of the abutment plate (81), and a side wall of the through hole (22) for use with The reset groove (221) for sliding the reset block (82) and the second reset spring (83) fixed to the bottom of the reset block (82); the end of the second reset spring (83) away from the reset block (82) is fixed to the bottom wall of the reset groove (221); the third sliding sleeve (441) can drive the abutment plate (81) to move downward under the action of the spherical surface (812), and the abutment plate (81) can abut against the top of the I-beam slide rail (1) under the action of the friction part (811).

10. A support device with automatically adjustable height based on floor height according to claim 1, characterized in that: The bottom of the slide (2) is movably fitted with multiple spherical blocks (23).