Electric lift truck for large integrated support installation

Abstract

This invention relates to the field of electric stacker technology, and more particularly to an electric stacker for installing large integrated supports. It employs an electric forklift, which includes a mast and forks. The forks are driven by a chain lifting system and move up and down along the height of the mast to lift the large integrated support. The invention also includes: a fixing mechanism; two placement blocks for fixing the large integrated support; and a tilting mechanism. This invention adds a fixing function, allowing the large integrated support to be lifted to a designated installation point on the top plate using the forks of the electric forklift. This simplifies operation and ensures construction safety. It also minimizes the elastic deformation zone of the forks during operation, providing an extremely stable installation reference for the fixing mechanism. Furthermore, under the action of the tilting mechanism, the placement blocks with the large integrated support fixed on them can rotate 90 degrees upwards during vertical movement along the movable frame to align with the preset installation holes on the top plate.

Description

Technical Field

[0001] This invention relates to the field of electric stacker technology, and more particularly to an electric stacker for installing large integrated support structures. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] In building pipeline installation, the high-altitude installation of integrated scaffolding (typically supporting various pipes, air ducts, cable trays, etc.) is a complex and high-risk operation. Traditional methods rely heavily on manually erecting scaffolding and using mobile lifting platforms or temporary hoisting equipment to transport large and heavy integrated scaffolding to the predetermined position on the roof and secure it. These methods are not only inefficient and poorly adaptable to working spaces, but also pose significant safety hazards, such as the risk of falls from heights and being struck by falling objects. Furthermore, manual positioning has low accuracy and often requires repeated adjustments, further increasing the time and risk of high-altitude operations.

[0004] Currently, the electric stackers (electric forklifts) used are designed for flat handling and stacking. Their forks can only achieve simple lifting functions and lack a fixing mechanism for the installation of integrated supports. This can easily cause the integrated supports to slide and sway during the lifting process, resulting in poor stability and causing great difficulties and dangers for high-altitude installation operations. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing an electric stacker truck for installing large integrated support structures.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an electric stacker for installing large integrated supports, using an electric forklift, the electric forklift including a mast, a fork arm provided on one side of the mast, the fork arm being driven by a chain lifting system and moving up and down along the height direction of the mast, used for lifting large integrated supports, and further including: The fixing mechanism includes a fixed frame located on the side of the gantry and fixed to the fork arm, a movable frame that moves along the fork arm and is located on the side of the fixed frame away from the gantry, and a limiting component disposed on the movable frame for limiting the relative position of the movable frame on the fork arm; Two placement blocks are symmetrically arranged on the movable frame for placing and fixing the large integrated support frame. An opening is provided on one side of each placement block. The flipping mechanism rotates relative to the movable frame to change the opening direction of the placement block and adjust the installation posture of the large integrated support during vertical transportation.

[0007] Furthermore, the movable frame consists of a vertical frame and a base block; The limiting assembly includes two limiting blocks disposed symmetrically on the left and right sides at the front end of the bottom block, and a limiting member disposed at the outer end of the limiting blocks. The limiting blocks adopt a U-shaped structure, and both the upper and lower support surfaces of the limiting blocks are provided with wedge-shaped surfaces. The limiting member includes a side plate fixed to one side of the bottom block, and wedge-shaped blocks disposed at the upper and lower ends of the side plate and connected by springs. The wedge-shaped blocks are connected to the wedge-shaped surfaces.

[0008] Furthermore, a motor a is provided on the fixing frame, and a screw c is provided at the output end of the motor a. The screw c passes through the end face of the bottom block and a transmission component is provided in the bottom block accordingly. The transmission assembly includes a fixed inner ring that is fixed inside the base block and connected to the screw c.

[0009] Furthermore, the flipping mechanism includes a guide rail plate disposed within the movable frame and correspondingly guiding the placement block to move on one side, and a vertical moving unit disposed between the two placement blocks. The guide rail plate is provided with a track groove, which is composed of a straight rail and a curved rail that are smoothly connected. The vertical moving unit includes a first support plate disposed between the two placement blocks, a second support plate disposed on the first support plate and at one end away from the connection point of the placement blocks, a pivot is provided between the second support plate and the first support plate, and a screw b and a linear guide rod are respectively provided on the left and right sides of the second support plate. As the screw b rotates, the placement block fixed at both ends on the first support plate is driven to move along the straight rail to the inlet of the curved rail under the guidance of the linear guide rod. At this time, the placement block is rotated around the axis of the rotating shaft under the guidance of the trajectory of the curved rail.

[0010] Furthermore, the transmission assembly also includes a movable outer ring rotatably disposed outside the fixed inner ring, a first gear and a first bevel gear disposed on the movable outer ring and arranged adjacently along its axis, and two first racks that are engaged and connected to each other on the near end faces of the two limiting blocks and on the upper and lower sides of the first gear, respectively. A second bevel gear is disposed on the first bevel gear, and a belt drive component is disposed on the second bevel gear. The belt drive component consists of two pulleys and a belt wound around the two pulleys. One pulley is coaxially connected to the second bevel gear, and the other pulley is disposed at the lower end of the screw b.

[0011] Furthermore, a transmission unit connected to the screw b is provided on the bottom block; The transmission unit includes a second rack disposed on one side of the upper surface of the base block and a second gear disposed outside the screw b and connected to the second rack. When the movable frame moves closer to the fixed frame, the force is transmitted through the cooperation of the second gear and the second rack, which drives the screw b and the pulley sleeved on the screw b to rotate. Then, the force is transmitted through the belt to drive the first gear set outside the fixed inner ring to rotate, so that the two placement blocks move upward along the vertical frame while driving the two limiting blocks to move apart.

[0012] Furthermore, the placement block has an L-shaped structure, with a vertical plate on the inner side of the placement block and a sliding groove on the placement block for horizontal movement of the vertical plate. The lower end of the vertical plate extends and is fitted with a screw a that rotates at the lower end of the placement block. One end of the screw a is fitted with a motor b for use. The top of the vertical plate is fitted with a top plate for adjusting the size of the opening of the placement block.

[0013] Furthermore, the second rack is fixed to the fixing frame and slidably connected to the upper surface of the base block.

[0014] The beneficial effects of this invention are reflected in: This invention adds a large integrated support bracket fixing function to the original electric forklift through a fixed mechanism. The large integrated support bracket is lifted to the fixed installation point on the top plate by the forklift's fork arm, which is simple to operate and safe to construct. It can also horizontally transfer the large integrated support bracket to the placement block at the front end of the fork arm for fixing. Then, the movable frame with the large integrated support bracket fixed is located at the support root and rigid reinforcement area of ​​the fork arm, which can minimize the elastic deformation zone of the fork arm during operation and provide an extremely stable installation benchmark for the fixing mechanism. Furthermore, under the action of the flipping mechanism, the placement block with the large integrated support bracket fixed can be flipped 90 degrees upwards while moving vertically along the movable frame to align with the preset installation hole position on the top plate, thereby completing the assembly operation of the large integrated support bracket on the top plate. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of an embodiment of the present invention. Figure 2 This is a perspective view of a three-dimensional structural diagram of a large integrated support device according to an embodiment of the present invention; Figure 3 This is a three-dimensional structural diagram of a large integrated support device from an exploded perspective, according to an embodiment of the present invention. Figure 4 This is a three-dimensional structural diagram of a large integrated support device from another exploded perspective in one embodiment of the present invention; Figure 5 This is a rear view of the movable frame in one embodiment of the present invention; Figure 6This is a perspective view of a three-dimensional structure of a screw c connected to and driving a limiting component in one embodiment of the present invention. Figure 7 This is a perspective view of the combination of the placement block and the vertical moving unit in one embodiment of the present invention. Figure 8 This is a three-dimensional structural diagram of the combination of the placement block and the vertical moving unit in one embodiment of the present invention from another perspective. Figure 9 This is a connection view of a block moving on a guide rail plate via a vertical moving unit in one embodiment of the present invention; Figure 10 This is a view showing the change in the opening direction of the placement block in one embodiment of the present invention.

[0016] In the picture: 100. Gantry; 101. Fork arm; 1. Fixed frame; 2. Movable frame; 21. Vertical frame; 22. Base block; 3. Limiting assembly; 31. Limiting block; 32. Side plate; 33. Wedge block; 4. Placement block; 41. Vertical plate; 42. Screw a; 43. Top plate; 5. Guide rail plate; 51. Track groove; 6. Vertical movement unit; 61. First support plate; 62. Second support plate; 63. Rotating shaft; 64. Screw b; 65. Linear guide rod; 7. Motor a; 71. Screw c; 8. Transmission assembly; 81. Fixed inner ring; 82. First gear; 83. First rack; 84. Movable outer ring; 85. First bevel gear; 86. Second bevel gear; 87. Belt drive component; 9. Transmission unit; 91. Second rack; 92. Second gear. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-10 This invention discloses an electric stacker truck used for the installation of large integrated support structures. It employs an electric forklift, which includes a mast 100 with a fork arm 101 mounted on one side. The fork arm 101 is driven by a chain lifting system and moves up and down along the height of the mast 100 to lift the large integrated support structure. The invention also includes: The fixing mechanism includes a fixed frame 1 located on the side of the gantry 100 and fixed on the fork arm 101, a movable frame 2 that moves along the fork arm 101 and is located on the side of the fixed frame 1 away from the gantry 100, and a limiting component 3 disposed on the movable frame 2 for limiting the relative position of the movable frame 2 on the fork arm 101. Two placement blocks 4 are symmetrically arranged on the movable frame 2 for placing and fixing the large integrated support frame. An opening is provided on one side of each placement block 4. The flipping mechanism rotates relative to the movable frame 2 to change the opening direction of the placement block 4 and adjust the installation posture of the large integrated support during vertical transportation.

[0019] In practice, the fixed frame 1 is fixed with bolts on the fork arm 101 near the mast 100, and the movable frame 2 is fixed on the fork arm 101 by the limiting component 3. The large integrated support is supported and fixed by two placement blocks 4 symmetrically installed on the movable frame 2. Then, the chain lifting system installed on the electric forklift is used to lift the large integrated support to the construction height, which facilitates the subsequent installation of the integrated support on the top plate without operation. In the process of fixing the large integrated support using the placement block 4 of the movable frame 2, due to the weight of the large integrated support, the movable frame 2 can be moved to the front end of the fork arm 101 during the preparation period before construction. The large integrated support is then transferred at a low height and fixed by the placement block 4. Then, under the action of power, the movable frame 2 is driven to approach the fixed frame 1, so that it moves and is located at the support root and rigid reinforcement area of ​​the fork arm 101. This can avoid the elastic deformation zone of the fork arm 101 during operation to the greatest extent, and provide an extremely stable installation benchmark for the fixing mechanism. There is also a flipping mechanism that moves and installs the corresponding block 4 in the movable frame 2, so that the block 4 with the large integrated bracket fixed on it can be flipped 90 degrees upward to align with the preset installation hole position on the top plate, thereby completing the assembly operation of the large integrated bracket on the top plate.

[0020] It should be noted that this application does not impose any special restrictions on the use of chain lifting systems; any equipment capable of performing the above operations may be used. In addition to large integrated supports, it can also lift pipe fittings.

[0021] In one embodiment, the movable frame 2 is composed of a vertical frame 21 and a base block 22; The limiting component 3 includes two limiting blocks 31 symmetrically arranged at the front end of the base block 22 and a limiting member at the outer end of the limiting blocks 31. The limiting blocks 31 have a U-shaped structure, and both the upper and lower support surfaces of the limiting blocks 31 are provided with wedge-shaped surfaces. The limiting member includes a side plate 32 fixed to one side of the base block 22 and wedge-shaped blocks 33 located at the upper and lower ends of the side plate 32 and connected by springs. The wedge-shaped blocks 33 are connected to the wedge-shaped surfaces. With this design, a movable frame 2 welded from a vertical frame 21 and a base block 22 is used. When an external force is applied, the two limiting blocks 31 installed at the front end of the base block 22 will drive the limiting blocks 31 distributed on both sides to move apart, and with the cooperation of the limiting member, the base block 22 is fixed on the fork arm 101. Furthermore, the side plate 32 included in the limiting component is welded to the inner side of the bottom block 22, and the wedge block 33 is welded on the top and bottom by a spring. The wedge block 33 is inserted into the limiting block 31 by fitting the wedge surface pre-machined on the top and bottom, so that the bottom block 22 is stably fixed on the fork arm 101, and the stability is maintained during the later process of lifting the large integrated support.

[0022] In one embodiment, a motor a7 is provided on the fixing frame 1, and a screw c71 is provided at the output end of the motor a7. The screw c71 passes through the end face of the bottom block 22 and a transmission component 8 is provided in the bottom block 22 accordingly. The transmission assembly 8 includes a fixed inner ring 81 fixed inside the base block 22 and connected to the screw c71. This design allows the motor a7, bolted to the fixed frame 1, and the screw c71 connected to the motor a7 via a coupling to be started. Starting the motor a7 drives the screw c71 to rotate, causing the fixed inner ring 81, welded inside the base block 22 and threadedly connected to the external thread of the screw c71, to move linearly on the fork arm 101 towards or away from the fixed frame 1, limited by the second rack 91 installed between the fixed frame 1 and the movable frame 2.

[0023] In one embodiment, the flipping mechanism includes a guide rail plate 5 disposed within the movable frame 2 and correspondingly guiding the placement block 4 to move, and a vertical moving unit 6 disposed between the two placement blocks 4. The guide rail plate 5 is provided with a track groove 51, which is composed of a straight rail and a curved rail that are smoothly connected. The vertical moving unit 6 includes a first support plate 61 disposed between the two placement blocks 4, a second support plate 62 disposed on the first support plate 61 and away from the connection point of the placement blocks 4, a rotating shaft 63 disposed between the second support plate 62 and the first support plate 61, and a screw b64 and a linear guide rod 65 respectively disposed on the left and right sides of the second support plate 62. As the screw b64 rotates, under the guidance of the linear guide rod 65, the placement block 4, which is fixed at both ends on the first support plate 61, moves along the straight rail to the inlet of the curved rail. At this time, under the guidance of the trajectory of the curved rail, the placement block 4 is rotated around the axis of the rotating shaft 63. With this design, the guide rail plates 5 welded to both sides inside the vertical frame 21, and the track grooves 51 formed by straight and curved rails machined on the guide rail plates 5, as well as the first support plate 61 fixed between the two placement blocks 4 by a shaft, when the screw b64 is driven to rotate by an applied force, the second support plate 62 will move linearly along the vertical frame 21 under the limit of the linear guide rod 65. During the linear movement, due to the track grooves 51 machined on the guide rail plates 5, the connection point between the first support plate 61 and the placement block 4 will first move along the straight rail to the end of the curved rail. Then, under the guidance of the curved rail trajectory, the placement block 4 will rotate around the axis of the rotating shaft 63 installed between the first support plate 61 and the second support plate 62, thereby changing the opening direction of the placement block 4.

[0024] It should be noted that the first support plate 61 is longer than the second support plate 62, and the second support plate 62 is initially in a horizontal state, while the first support plate 61 is inclined to the second support plate 62 at a certain angle through the connection of the pivot 63. The internal thread groove machined on one side of the second support plate 62 is connected to the screw b64, and the limiting guide groove machined on the other side of the second support plate 62 is connected to the linear guide rod 65.

[0025] In one embodiment, the transmission assembly 8 further includes a movable outer ring 84 rotatably disposed outside the fixed inner ring 81, a first gear 82 and a first bevel gear 85 disposed on the movable outer ring 84 and arranged adjacently along its axis, and a first rack 83 that is engaged and connected to the adjacent end faces of the two limiting blocks 31 on the upper and lower sides of the first gear 82, respectively. A second bevel gear 86 is disposed on the first bevel gear 85, and a belt drive component 87 is disposed on the second bevel gear 86. The belt drive component 87 consists of two pulleys and a belt wound around the two pulleys. One pulley is coaxially connected to the second bevel gear 86, and the other pulley is disposed at the lower end of the screw b64.

[0026] The bottom block 22 is provided with a transmission unit 9 connected to the screw b64; The transmission unit 9 includes a second rack 91 disposed on one side of the upper surface of the base block 22, and a second gear 92 disposed outside the screw b64 and connected to the second rack 91. When the movable frame 2 moves closer to the fixed frame 1, the second gear 92 and the second rack 91 cooperate to transmit force, driving the screw b64 and the pulley sleeved on the screw b64 to rotate. Then, the belt transmits force to drive the first gear 82, which is located outside the fixed inner ring 81, to rotate. This causes the two placement blocks 4 to move upwards along the vertical frame 21 while simultaneously driving the two limiting blocks 31 to move apart. With this design, the second rack 91, which is slidably mounted with a slot on one side of the upper surface of the base block 22, and the second gear 92, which is fixedly sleeved outside the lower end of the screw b64, allows the second gear 92 mounted on the base block 22 to rotate under the cooperation of the second rack 91 as the movable frame 2 moves towards or away from the fixed frame 1. This causes the screw b64, through which the end face of the second gear 92 passes, to rotate, applying force to drive the placement blocks 4 to move vertically. The belt drive component 87 installed on the screw b64 transmits force to drive the second bevel gear 86, which is coaxially fixed with a pulley, to rotate. Under the transmission meshing of the second bevel gear 86 and the first bevel gear 85, the first gear 82 on the fixed movable outer ring 84 on the end face of the first bevel gear 85 will rotate accordingly. At this time, the two first racks 83 that mesh with the left and right sides and the top and bottom of the first gear 82 will synchronously drive the limiting block 31 welded to the first rack 83 in the bottom block 22 to move apart or towards each other, realizing the linkage function and improving the installation efficiency.

[0027] It should be noted that the travel of the placement block 4, the travel of the movable frame 2, and the travel of the limit block 31 are all equal.

[0028] In one embodiment, the placement block 4 has an L-shaped structure. An upright plate 41 is provided on the inner side of the placement block 4. A sliding groove for horizontal movement of the upright plate 41 is provided on the placement block 4. The lower end of the upright plate 41 extends and is fitted with a screw a42 that rotates on the lower end of the placement block 4. A motor b is provided at one end of the screw a42. The top end of the upright plate 41 is provided with a top plate 43 for adjusting the size of the opening of the placement block 4. This design uses a vertical plate 41 that is limited to move within a groove machined on the horizontal surface of the L-shaped placement block 4. A screw a42, which is threadedly connected to the lower side of the placement block 4 and extends from the vertical plate 41, is started and driven by the motor b to rotate the screw a42. This causes the vertical plate 41 connected to the screw a42 to move linearly along the groove and move closer to the vertical surface of the placement block 4. This allows for adjustable clamping of large integrated supports of various specifications. The top plate 43 welded to the top of the vertical plate 41 can adjust the opening size of the placement block 4 as it moves with the vertical plate 41, preventing large integrated supports or pipes from falling out of the opening during upward movement and flipping.

[0029] In one embodiment, the second rack 91 is fixed to the fixed frame 1 and slidably connected to the upper surface of the base block 22. This design, with a guide groove machined into the upper surface of the base block 22 and the second rack 91 slidably mounted within the guide groove (one end of the second rack 91 is welded to the lower end of the fixed frame 1), allows the second gear 92 mounted on the base block 22 and sleeved with the screw b64 to engage with the second rack 91 during horizontal movement as the base block 22 moves closer to and from the fixed frame 1. This enables the screw b64 and the transmission component mounted on the screw b64 to rotate freely, without spatial limitations. Furthermore, the movement guide connection between the second rack 91 and the upper surface of the base block 22 provides a limiting linear motion function for the movable frame 2 during its movement towards or away from the fixed frame 1.

[0030] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0032] Additionally, "multiple" refers to two or more.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electric stacker for installing large integrated supports, comprising an electric forklift, the electric forklift including a mast (100), wherein a fork arm (101) is provided on one side of the mast (100), the fork arm (101) being driven by a chain lifting system and moving up and down along the height direction of the mast (100) for lifting large integrated supports, characterized in that, Also includes: The fixing mechanism includes a fixed frame (1) located on the side of the gantry (100) and fixed on the fork arm (101), a movable frame (2) that moves along the fork arm (101) and is located on the side of the fixed frame (1) away from the gantry (100), and a limiting component (3) disposed on the movable frame (2) for limiting the relative position of the movable frame (2) on the fork arm (101). Two placement blocks (4) are symmetrically arranged on the movable frame (2) for placing and fixing large integrated supports. An opening is provided on one side of each placement block (4). The flipping mechanism rotates relative to the movable frame (2) to change the opening direction of the placement block (4) and adjust the installation posture of the large integrated bracket during vertical transportation.

2. The electric stacker truck for installing large integrated supports according to claim 1, characterized in that: The movable frame (2) consists of a vertical frame (21) and a base block (22); The limiting component (3) includes two limiting blocks (31) disposed at the front end of the bottom block (22) and symmetrically arranged on the left and right, and a limiting member disposed at the outer end of the limiting block (31). The limiting block (31) adopts a U-shaped structure. The upper and lower support surfaces of the limiting block (31) are provided with wedge-shaped surfaces. The limiting member includes a side plate (32) fixed to one side of the bottom block (22), and a wedge-shaped block (33) disposed at the upper and lower ends of the side plate (32) and connected by a spring. The wedge-shaped block (33) is connected to the wedge-shaped surface.

3. The electric stacker truck for installing large integrated supports according to claim 2, characterized in that: The fixed frame (1) is provided with a motor a (7), and the output end of the motor a (7) is provided with a screw c (71). The screw c (71) passes through the end face of the bottom block (22) and a transmission component (8) is provided in the bottom block (22) accordingly. The transmission assembly (8) includes a fixed inner ring (81) fixed inside the base block (22) and connected to the screw c (71).

4. The electric stacker truck for installing large integrated supports according to claim 3, characterized in that: The flipping mechanism includes a guide rail plate (5) disposed in the movable frame (2) and correspondingly guides the placement block (4) on one side to move, and a vertical moving unit (6) disposed between the two placement blocks (4). The guide rail plate (5) is provided with a track groove (51), which is composed of a straight rail and a curved rail that are smoothly connected. The vertical moving unit (6) includes a first support plate (61) disposed between the two placement blocks (4), a second support plate (62) disposed on the first support plate (61) and away from the connection point of the placement blocks (4), a pivot (63) is disposed between the second support plate (62) and the first support plate (61), and a screw b (64) and a linear guide rod (65) are respectively disposed on the left and right sides of the second support plate (62); As the screw b (64) rotates, under the guidance of the linear guide rod (65), the placement block (4) fixed at both ends on the first support plate (61) is driven to move along the straight rail to the inlet of the curved rail. At this time, under the guidance of the trajectory of the curved rail, the placement block (4) is rotated around the axis of the rotating shaft (63).

5. The electric stacker truck for installing large integrated supports according to claim 4, characterized in that: The transmission assembly (8) further includes a movable outer ring (84) rotatably disposed outside the fixed inner ring (81), a first gear (82) and a first bevel gear (85) disposed on the movable outer ring (84) and arranged adjacently along its axis. The two limiting blocks (31) have a first rack (83) that is connected to each other on the upper and lower sides of the first gear (82). A second bevel gear (86) is disposed on the first bevel gear (85). A belt drive component (87) is disposed on the second bevel gear (86). The belt drive component (87) consists of two pulleys and a belt wound around the two pulleys. One pulley is coaxially connected to the second bevel gear (86), and the other pulley is disposed at the lower end of the screw b (64).

6. The electric stacker truck for installing large integrated supports according to claim 5, characterized in that: The bottom block (22) is provided with a transmission unit (9) connected to the screw b (64). The transmission unit (9) includes a second rack (91) disposed on one side of the upper surface of the base block (22) and a second gear (92) disposed outside the screw b (64) and connected to the second rack (91). When the movable frame (2) approaches the fixed frame (1), the second gear (92) and the second rack (91) cooperate to transmit force to drive the screw b (64) and the pulley sleeved on the screw b (64) to rotate. Then, the force is transmitted through the belt to drive the first gear (82) set outside the fixed inner ring (81) to rotate, so that the two placement blocks (4) move upward along the vertical frame (21) while driving the two limiting blocks (31) to move apart.

7. The electric stacker truck for installing large integrated supports according to claim 1, characterized in that: The placement block (4) has an L-shaped structure. An upright plate (41) is provided on the inner side of the placement block (4). A sliding groove for horizontal movement of the upright plate (41) is provided on the placement block (4). The lower end of the upright plate (41) extends and is fitted with a screw a (42) that rotates at the lower end of the placement block (4). A motor b is provided at one end of the screw a (42) for use. A top plate (43) is provided at the top of the upright plate (41) for adjusting the size of the opening of the placement block (4).

8. The electric stacker truck for installing large integrated supports according to claim 6, characterized in that: The second rack (91) is fixed on the fixed frame (1) and slidably connected to the upper surface of the base block (22).

Images