Lifting platform

Abstract

The utility model relates to a lifting platform which comprises a supporting frame, first guide columns, a lifting block and a lifting mechanism, the number of the first guide columns is multiple, and the multiple first guide columns are arranged on the supporting frame in a sliding mode; the lifting block is connected with the plurality of first guide columns; the lifting mechanism is arranged on the supporting frame and connected with the multiple first guide columns. The method has the effect of improving the stability.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of lifting structures, in particular to a lifting platform. BACKGROUND

[0002] With the continuous improvement of industrialization level, the lifting platform as an important material handling tool has been widely applied in the field of nondestructive testing.

[0003] The traditional lifting platform is connected with a top plate by using a single hydraulic cylinder, so that the force of the top plate is concentrated on the connection position of the hydraulic cylinder, and the top plate or the bottom plate is prone to structural instability due to uneven force. CONTENT OF THE UTILITY MODEL

[0004] In order to improve the stability, the application provides a lifting platform.

[0005] The application provides a lifting platform, which adopts the following technical scheme:

[0006] The lifting platform comprises a supporting frame, a first guide column, a lifting block and a lifting mechanism, a plurality of first guide columns are arranged on the supporting frame, the lifting block is connected with the plurality of first guide columns, and the lifting mechanism is arranged on the supporting frame and connected with the plurality of first guide columns.

[0007] By adopting the above technical scheme, the lifting mechanism is started, the lifting mechanism drives the plurality of first guide columns to move, and the plurality of first guide columns drive the lifting block to move. Because of the plurality of first guide columns, the lifting block is more stable during movement. Therefore, the lifting platform provided by the application has high stability.

[0008] Optionally, the supporting frame comprises a bottom block, a top block, a second guide column and a first sleeve, a plurality of second guide columns are arranged, one end of each second guide column is connected with the bottom block, the other end is connected with the top block, the first sleeve is arranged on the top block, the first guide column penetrates through the first sleeve, the lifting mechanism is arranged on the bottom block, and the first guide column and the second guide column are arranged alternately.

[0009] By adopting the above technical scheme, when the lifting mechanism drives the plurality of first guide columns to move, each first guide column will slide in the corresponding first sleeve. Because of the existence of the first sleeve, the movement path of the first guide column can be limited, and the phenomenon of deviation of the first guide column can be reduced.

[0010] Optionally, a stabilizing block is arranged between the bottom block and the top block, the first guide columns are connected to the stabilizing block at the end away from the lifting block, and the lifting mechanism is connected to the stabilizing block; and the stabilizing block is provided with a second sleeve through which the second guide column passes.

[0011] By adopting the above technical scheme, when the lifting mechanism drives the stabilizing block to move, the second guide column and the second sleeve limit the movement path of the stabilizing block, so that the lifting mechanism stably drives the stabilizing block to move, and the stabilizing block stably drives the lifting block to move through the first guide column, thereby improving the stability of the lifting platform.

[0012] Optionally, the lifting block and the stabilizing block are each provided with a fixing mechanism, the fixing mechanism comprises a first fixing block and a clamping assembly, the first fixing block is fixedly connected to the lifting block and the stabilizing block, and a fixing groove for placing the first guide column is formed in the first fixing block; and the clamping assembly is arranged on the first fixing block and connected to the first guide column.

[0013] By adopting the above technical scheme, first, one end of the first guide column is placed in the fixing groove in the first fixing block on the lifting block, and then the first guide column is clamped by the clamping assembly; then the end of the first guide column away from the lifting block is passed through the first sleeve on the top block and is placed in the fixing groove in the first fixing block on the stabilizing block, and finally the first guide column is clamped by the clamping assembly; the fixing mechanism can facilitate the connection of the first guide column with the stabilizing block and the lifting block.

[0014] Optionally, the clamping assembly comprises a first clamping block, a second clamping block and a first fixing bolt, the first clamping block and the second clamping block are hingedly connected to the first fixing block, and the first clamping block and the second clamping block abut against the first guide column; and the first fixing bolt is threadedly connected to the first clamping block and the second clamping block.

[0015] By adopting the above technical scheme, when the first guide column is located in the fixing groove of the first fixing block, the first clamping block and the second clamping block are rotated to abut against the side of the first guide column close to the first fixing block; and then the first fixing bolt is threadedly connected to the first clamping block and the second clamping block, so that the first clamping block and the second clamping block clamp the first guide column.

[0016] Optionally, the lifting mechanism is connected with the stabilizing block, the lifting mechanism comprises a driving block, a fixing seat, a lifting screw rod and a driving assembly, the driving block is fixedly arranged on the stabilizing block, a driving threaded hole is arranged on the driving block, the fixing seat is fixedly arranged on the bottom block, the lifting screw rod is rotatably arranged on the fixing seat, one end of the lifting screw rod away from the fixing seat penetrates through the driving threaded hole, and the driving threaded hole is threadedly connected with the lifting screw rod, and the driving assembly is arranged on the bottom block and connected with the lifting screw rod.

[0017] By adopting the above technical scheme, the driving assembly is started, the driving assembly drives the lifting screw rod to rotate on the fixing seat, the driving screw rod drives the driving block to move, the driving block drives the stabilizing block to move, and the stabilizing block drives the plurality of first guide columns to move synchronously.

[0018] Optionally, the driving assembly comprises a driving shaft, a worm, a worm wheel and a driving piece, the driving shaft is rotatably arranged on the fixing seat, the worm is arranged on the driving shaft, the worm wheel is key-connected to the lifting screw rod and meshed with the worm, and the driving piece is arranged on the bottom block and connected with the driving shaft.

[0019] By adopting the above technical scheme, the driving piece drives the driving shaft to rotate, the worm on the driving shaft drives the worm wheel to rotate, and the worm wheel drives the lifting screw rod to rotate.

[0020] Optionally, the first sleeve comprises a first cylindrical block, a second cylindrical block and a second fixing bolt, the second cylindrical block is arranged at one end of the first cylindrical block, a first through hole for the second cylindrical block is arranged on the top block, the cross section of the first cylindrical block is larger than that of the second cylindrical block, the first cylindrical block abuts against the top block, the second fixing bolt is threadedly connected with the top block through the first cylindrical block, a second through hole for the first guide column to penetrate through is arranged on the first cylindrical block, and a third through hole for the first guide column to penetrate through is arranged on the second cylindrical block.

[0021] By adopting the above technical scheme, one end of the second cylindrical block away from the first cylindrical block penetrates through the top block, the first cylindrical block abuts against the top block, and then the second fixing bolt is threadedly connected with the top block through the first cylindrical block.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The lifting platform provided by the present application has high stability;

[0024] 2. The fixing mechanism can conveniently connect the first guide column with the stabilizing block and the lifting block. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 This is a schematic diagram of the lifting platform in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the support frame structure in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the fixing mechanism in the embodiments of this application;

[0028] Figure 4 This is a schematic diagram of the structure of the first sleeve in the embodiments of this application;

[0029] Figure 5 This is a schematic diagram of the lifting mechanism in the embodiments of this application;

[0030] Figure 6 This is a schematic diagram of the reinforcement mechanism in the embodiments of this application;

[0031] Figure 7 This is a schematic diagram of the reinforcing block in an embodiment of this application.

[0032] Reference numerals: 1. Support frame; 11. Base block; 12. Top block; 13. Second guide post; 14. First sleeve; 141. First cylindrical block; 142. Second cylindrical block; 143. Second fixing bolt; 2. First guide post; 3. Lifting block; 4. Lifting mechanism; 41. Drive block; 42. Fixed seat; 43. Lifting screw; 44. Drive assembly; 441. Drive shaft; 442. Worm gear; 443. Worm wheel; 444. Drive component; 5. Stabilizing block; 6. Second sleeve; 7. Fixing mechanism 71. First fixing block; 72. Clamping assembly; 721. First clamping block; 722. Second clamping block; 723. First fixing bolt; 73. Connecting assembly; 731. Connecting plate; 732. Connecting bolt; 81. Protective box; 82. Reinforcing block; 83. Two-way lead screw; 84. Fixing plate; 85. Third fixing bolt; 9. Reinforcing mechanism; 91. Clamping block; 92. Reinforcing block; 93. Adjusting shaft; 94. Adjusting gear; 95. Rack; 101. Limiting block; 102. Spring. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-7 This application will be described in further detail.

[0034] This application discloses a lifting platform.

[0035] refer to Figure 1 and Figure 2The lifting platform comprises a protection box 81, a placing groove is formed in the protection box 81, a support frame 1 is placed in the placing groove of the protection box 81, a plurality of first guide columns 2 are arranged on the support frame 1, and a lifting block 3 is arranged at the end, away from the support frame 1, of each first guide column 2.

[0036] With reference to Figure 2 and Figure 3 The support frame 1 comprises a bottom block 11, a plurality of second guide columns 13 are connected to the bottom block 11, and a top block 12 is connected to the end, away from the bottom block 11, of each second guide column 13. In the embodiment, four second guide columns 13 and four first guide columns 2 are arranged alternately.

[0037] The bottom block 11 and the top block 12 are each provided with a fixing mechanism 7 connected to the second guide column 13. The fixing mechanism 7 comprises a first fixing block 71, the bottom block 11 and the top block 12 are each provided with the first fixing block 71, a connecting assembly 73 is arranged on the first fixing block 71, the connecting assembly 73 comprises a connecting plate 731 fixedly connected to the first fixing block 71, the connecting plate 731 abuts against the bottom block 11 or the top block 12, a connecting bolt 732 is arranged on the connecting plate 731, and the connecting bolt 732 is screwed with the bottom block 11 or the top block 12 through the connecting plate 731.

[0038] The first fixing block 71 is provided with a clamping assembly 72, the clamping assembly 72 comprises a first clamping block 721 and a second clamping block 722 hingedly connected to the first fixing block 71, and the first clamping block 721 and the second clamping block 722 each abut against the second guide column 13. A fourth through hole is formed in the first clamping block 721, a fixing threaded hole is formed in the second clamping block 722, a first fixing bolt 723 is arranged on the first clamping block 721, and the first fixing bolt 723 is screwed with the fixing threaded hole in the second clamping block 722 through the fourth through hole in the first clamping block 721.

[0039] The end of the second guide column 13 is clamped with the fixing groove of the first fixing block 71, then the first clamping block 721 and the second clamping block 722 are rotated to abut against the second guide column 13, and then the first fixing bolt 723 is screwed with the fixing threaded hole in the second clamping block 722 through the fourth through hole in the first clamping block 721, so that the second guide column 13 is fixed on the first fixing block 71.

[0040] With reference to Figure 2 and Figure 4The first sleeve 14 is arranged on the top block 12, and the first sleeve 14 comprises a first cylindrical block 141 and a second through hole for the first guide column 2 to pass through, which is arranged on the first cylindrical block 141. A second cylindrical block 142 is fixed to one side of the first cylindrical block 141, and a third through hole for the first guide column 2 to pass through is arranged on the second cylindrical block 142. The cross section of the second cylindrical block 142 is smaller than that of the first cylindrical block 141.

[0041] A first through hole for the second cylindrical block 142 to pass through is arranged on the top block 12, and the cross section of the first through hole is smaller than that of the first cylindrical block 141. A second fixing bolt 143 is arranged on the first cylindrical block 141, and the second fixing bolt 143 is threadedly connected with the top block 12 through the first cylindrical block 141.

[0042] Referring to Figure 2 and Figure 4 A first recess is arranged on the circumferential side of the second cylindrical block 142, and a limiting block 101 is slidably connected in the first recess. A spring 102 is arranged in the first recess, and one end of the spring 102 is connected with the limiting block 101 and the other end is connected with the second cylindrical block 142.

[0043] When the first sleeve 14 is to be installed on the top block 12, the operator first makes the second cylindrical block 142 pass through the first through hole on the top block 12 away from one end of the first cylindrical block 141. Then the limiting block 101 is pressed to make the limiting block 101 enter the first recess, and the spring 102 is compressed. Then the second sleeve 6 with the first recess is made to pass through the first through hole on the top block 12. When the limiting block 101 passes through the top block 12, the spring 102 restores the elastic deformation. Under the action of the spring 102, the limiting block 101 will abut against one end of the top block 12, and at this time the first cylindrical block 141 will abut against the side of the top block 12 away from the limiting block 101. Finally, the second fixing bolt 143 is made to pass through the first cylindrical block 141 and be threadedly connected with the top block 12.

[0044] Referring to Figure 2 A stable block 5 is arranged between the bottom block 11 and the top block 12, and a second sleeve 6 for connecting the second guide column 13 is arranged on the stable block 5. The structure of the second sleeve 6 is the same as that of the first sleeve 14, and the first cylindrical block 141 in the second sleeve 6 is connected to the stable block 5 through the second fixing bolt 143.

[0045] A fixing mechanism 7 for connecting the first guide column 2 is arranged on the stable block 5 and the lifting block 3. One end of the first guide column 2 is located in the fixing groove of the first fixing block 71 on the stable block 5, and the other end is located in the fixing groove of the first fixing block 71 on the lifting block 3.

[0046] Referring to Figure 2 and Figure 5The bottom block 11 is provided with a lifting mechanism 4, the lifting mechanism 4 comprises a driving block 41 fixedly connected at the center position of the stable block 5, and a driving thread hole is formed in the driving block 41; the bottom block 11 is provided with a fixed seat 42, a cavity is formed in the fixed seat 42, and a lifting lead screw 43 is rotatably connected to the fixed seat 42; one end of the lifting lead screw 43 away from the fixed seat 42 penetrates through the driving thread hole, and the driving thread hole is threadedly connected with the lifting lead screw 43. The bottom block 11 is provided with a driving assembly 44, the driving assembly 44 comprises a driving shaft 441 rotatably connected to the fixed seat 42, one end of the driving shaft 441 is located in the cavity of the fixed seat 42, and a worm 442 is fixedly connected to the driving shaft 441 located in the cavity; the end of the lifting lead screw 43 away from the driving block 41 is located in the cavity of the fixed seat 42 and is key-connected with a worm wheel 443 engaged with the worm 442 on the end located in the cavity. The bottom block 11 is provided with a driving member 444 connected with the driving shaft 441, and the driving member 444 can be a motor in the application, and the output shaft of the motor is connected with the driving shaft 441.

[0047] The driving member 444 is started, the driving member 444 drives the driving shaft 441 to rotate, the driving shaft 441 drives the worm 442 to rotate, the worm 442 drives the worm wheel 443 to rotate, the worm wheel 443 drives the lifting lead screw 43 to rotate, and the lifting lead screw 43 drives the driving block 41 to move, so that the stable block 5 moves and the stable block 5 slides relative to the second guide column 13.

[0048] Reference Figure 2 And Figure 6 In order to improve the stability of the connecting plate 731 on the bottom block 11, the positioning block, the stable block 5 and the lifting block 3, the reinforcing mechanism 9 is arranged on the bottom block 11, the positioning block, the stable block 5 and the lifting block 3, the reinforcing mechanism 9 comprises a clamping block 91 fixedly connected to the connecting plate 731, and a reinforcing groove is formed in one end of the clamping block 91 away from the connecting plate 731; the bottom block 11, the positioning block, the stable block 5 and the lifting block 3 are all provided with a clamping groove for clamping the clamping block 91; the bottom block 11, the positioning block, the stable block 5 and the lifting block 3 are all rotatably connected with an adjusting shaft 93, and an adjusting gear 94 is key-connected to the adjusting shaft 93; the bottom block 11, the positioning block, the stable block 5 and the lifting block 3 are all slidably connected with a reinforcing block 92 clamped with the reinforcing groove, and a rack 95 engaged with the adjusting gear 94 is fixedly connected to the reinforcing block 92.

[0049] The clamping block 91 on the connecting plate 731 is clamped with the clamping groove; then the adjusting shaft 93 is rotated, the adjusting shaft 93 drives the adjusting gear 94 to rotate, the adjusting gear 94 drives the adjusting rack 95 to move, and the adjusting rack 95 drives the reinforcing block 92 to move, so that the reinforcing block 92 is clamped with the reinforcing groove on the clamping block 91.

[0050] Reference Figure 1 And Figure 7The side, away from the bottom block 11, of the top block 12 is coplanar with the top wall of the protection box 81, and the bottom block 11 is located in the placing groove of the protection box 81. The protection box 81 is provided with a reinforcing mechanism, the reinforcing mechanism comprises two reinforcing blocks 82, the two reinforcing blocks 82 are slidingly arranged in the protection box 81, and two reinforcing grooves are formed in the bottom block 11 and are used for clamping the reinforcing blocks 82; the protection box 81 is rotationally connected with a bidirectional screw rod 83, the bidirectional screw rod 83 penetrates through the two reinforcing blocks 82, and the two ends of the two reinforcing blocks 82 are respectively threadedly connected with the two ends of the bidirectional screw rod 83; one end of the bidirectional screw rod 83 penetrates out of the protection box 81, and a fixed plate 84 is fixedly connected on the bidirectional screw rod 83 penetrating out of the protection box 81, the fixed plate 84 is provided with a third fixing screw 85, and the third fixing screw 85 is threadedly connected with the protection box 81 through the fixed plate 84.

[0051] When the bottom block 11 is located in the placing groove in the protection box 81, and the side, away from the bottom block 11, of the top block 12 is coplanar with the top end of the protection box 81, the fixed plate 84 is rotated, the fixed plate 84 drives the bidirectional screw rod 83 to rotate, the bidirectional screw rod 83 drives the two reinforcing blocks 82 to move towards each other, so that the two reinforcing blocks 82 are clamped with the reinforcing grooves on the bottom block 11; finally, the third fixing screw 85 is threadedly connected with the protection box 81 through the fixed plate 84, so that the support frame 1 is fixed in the protection box 81.

[0052] In the embodiment, the first sleeve 14 and the second sleeve 6 can also be linear bearings.

[0053] The above are preferred embodiments of the application, and are not used to limit the protection scope of the application, so that: equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A lifting platform, characterized in that, It includes a support frame (1), a first guide column (2), a lifting block (3) and a lifting mechanism (4). Multiple first guide columns (2) are provided, and multiple first guide columns (2) are slidably arranged on the support frame (1). The lifting block (3) is connected to multiple first guide columns (2). The lifting mechanism (4) is arranged on the support frame (1) and connected to multiple first guide columns (2).

2. The lifting platform according to claim 1, characterized in that, The support frame (1) includes a bottom block (11), a top block (12), a second guide post (13), and a first sleeve (14). Multiple second guide posts (13) are provided, and one end of each second guide post (13) is connected to the bottom block (11) and the other end is connected to the top block (12). The first sleeve (14) is provided on the top block (12), and the first guide post (2) passes through the first sleeve (14). The lifting mechanism (4) is provided on the bottom block (11), and the first guide post (2) and the second guide post (13) are staggered.

3. A lifting platform according to claim 2, characterized in that, A stabilizing block (5) is provided between the bottom block (11) and the top block (12). The ends of the plurality of first guide posts (2) away from the lifting block (3) are all connected to the stabilizing block (5). The lifting mechanism (4) is connected to the stabilizing block (5). A second sleeve (6) is provided on the stabilizing block (5) for the second guide post (13) to pass through.

4. A lifting platform according to claim 3, characterized in that, Both the lifting block (3) and the stabilizing block (5) are provided with a fixing mechanism (7). The fixing mechanism (7) includes a first fixing block (71) and a clamping assembly (72). The first fixing block (71) is fixedly connected to both the lifting block (3) and the stabilizing block (5). The first fixing block (71) has a fixing groove for placing the first guide post (2). The clamping assembly (72) is disposed on the first fixing block (71) and connected to the first guide post (2).

5. A lifting platform according to claim 4, characterized in that, The clamping assembly (72) includes a first clamping block (721), a second clamping block (722), and a first fixing bolt (723). The first clamping block (721) and the second clamping block (722) are both hinged to the first fixing block (71), and the first clamping block (721) and the second clamping block (722) abut against the first guide post (2). The first fixing bolt (723) passes through the first clamping block (721) and is threadedly connected to the second clamping block (722).

6. A lifting platform according to claim 3, characterized in that, The lifting mechanism (4) is connected to the stabilizing block (5). The lifting mechanism (4) includes a driving block (41), a fixed seat (42), a lifting screw (43), and a driving assembly (44). The driving block (41) is fixedly mounted on the stabilizing block (5), and a driving threaded hole is provided on the driving block (41). The fixed seat (42) is fixedly mounted on the bottom block (11), and the lifting screw (43) is rotatably mounted on the fixed seat (42). One end of the lifting screw (43) away from the fixed seat (42) passes through the driving threaded hole, and the driving threaded hole is threadedly connected to the lifting screw (43). The driving assembly (44) is mounted on the bottom block (11) and connected to the lifting screw (43).

7. A lifting platform according to claim 6, characterized in that, The drive assembly (44) includes a drive shaft (441), a worm (442), a worm wheel (443), and a drive member (444). The drive shaft (441) is rotatably mounted on the fixed base (42), and the worm (442) is mounted on the drive shaft (441). The worm wheel (443) is keyed to the lifting screw (43) and meshes with the worm (442). The drive member (444) is mounted on the base block (11) and connected to the drive shaft (441).

8. A lifting platform according to claim 2, characterized in that, The first sleeve (14) includes a first cylindrical block (141), a second cylindrical block (142), and a second fixing bolt (143). The second cylindrical block (142) is disposed at one end of the first cylindrical block (141). The top block (12) has a first through hole for the second cylindrical block (142) to pass through. The cross-section of the first cylindrical block (141) is larger than the cross-section of the second cylindrical block (142). The first cylindrical block (141) abuts against the top block (12). The second fixing bolt (143) passes through the first cylindrical block (141) and is threadedly connected to the top block (12). The first cylindrical block (141) has a second through hole for the first guide post (2) to pass through. The second cylindrical block (142) has a third through hole for the first guide post (2) to pass through.

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