A self-lifting mechanism, a trench construction system and a self-lifting method

Abstract

The application provides a self-lifting mechanism, a door trench construction system and a self-lifting method. A mechanism for self-lifting of a door trench construction device comprises at least two lifting devices, each of which is used for lifting a corresponding side of the door trench construction device in the left-right direction. The lifting device comprises a driving component, a rolling assembly and a cable. The rolling assembly and the driving component are both used for connecting the door trench construction device. The driving component is connected to a corresponding lifting point by passing through the corresponding rolling assembly through the corresponding cable. The driving component can shorten and lengthen the cable. The driving component and the lifting point are both located above the rolling assembly. The mechanism has the advantages of simple structure, easy installation, low cost, convenient operation, stable lifting of the door trench construction device, high lifting efficiency, short cycle, reduced lifting cost and reduced occupation of limited lifting resources on site.

Description

Technical Field

[0001] This invention relates to the field of gate slot construction technology, and in particular to a self-lifting mechanism, gate slot construction system and self-lifting method. Background Technology

[0002] In water conservancy and hydropower projects, gates and gate slots for installing the gates are required. When constructing the gate slots using a construction device, concrete needs to be poured continuously from bottom to top. As the concrete is poured, the concrete level rises until it reaches the top of the gate slot construction device. The device then needs to be raised to continue constructing the gate slot.

[0003] The existing methods for lifting gate slot construction devices are as follows: First, lifting the gate slot construction device using large lifting equipment. However, due to the limited lifting resources at the gate slot construction site and the heavy weight of the device, this method wastes a lot of lifting resources and is very inconvenient to install. Second, lifting the gate slot construction device using jacks. However, when the gate slot construction device is lifted to a high height, the existing method of lifting with jacks requires continuously lifting and fixing the jacks at a designated height. This method is relatively complex in terms of operation and lifting, with short strokes and slow speeds for each lift, and it also requires a lot of on-site construction resources. Summary of the Invention

[0004] The purpose of this invention is to address the problems of existing lifting methods for gate slot construction devices, such as the occupation of limited lifting resources, complex installation, and complex lifting methods, by providing a self-lifting mechanism, gate slot construction system, and self-lifting method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A mechanism for self-lifting a door slot construction device includes at least two lifting devices, each of which is used to lift a corresponding side of the door slot construction device in the left-right direction;

[0007] The lifting device includes a driving component, a rolling assembly, and a cable. The rolling assembly and the driving component are both used to connect to the gate slot construction device. The driving component passes around the corresponding rolling assembly via the corresponding cable and connects to the corresponding lifting point. The driving component can shorten and lengthen the cable. The driving component and the lifting point are both located above the rolling assembly.

[0008] During gate construction, the gate slots on both the left and right sides of the gate need to be constructed. The left and right sides of the gate slot construction device are used to construct the gate slots on the left and right sides of the gate. The self-lifting mechanism of this solution includes at least two lifting devices. The left and right sides of the gate slot construction device are each lifted by at least one lifting device. The number and position of the lifting devices on the left and right sides of the gate slot construction device are determined according to the actual situation to ensure that the left and right sides of the gate slot construction device can be lifted upward in a balanced manner under the force simultaneously.

[0009] In this design, the lifting points can be embedded metal structures on the already cast door slot, such as door slot tracks, or the already cast concrete of the door slot, or points in the surrounding environment that are higher than the rolling assembly and have a fixing capacity. The cable bypasses the rolling assembly, with its two ends being the lifting point and the drive component, respectively. There is no relative displacement between the rolling assembly and the cable, which avoids severe friction damage to the cable. Furthermore, the use of the rolling assembly improves the stability of the lifting device when lifting the door slot construction device. When the cable is tightened by the drive component, both the drive component and the lifting point are located above the rolling assembly. As the drive component provides tightening force to the cable, the cable shortens towards the drive component, and the lifting point remains unchanged. This causes the cable to exert an upward force on the rolling assembly, continuously raising the contact point between the cable and the rolling assembly, thus causing the rolling assembly to rise and consequently lifting the door slot construction device. Because the contact between the cable and the rolling assembly is relatively stable, the rising of the rolling assembly is smooth, improving the stability of the door slot construction device during lifting. Furthermore, the drive component, located on the door slot construction device, also rises along with it. When the door slot construction device needs to be lifted in sections, since the drive component is always higher than the rolling assembly, there is no need to separately hoist the drive component to the designated height using hoisting equipment. Simply change the lifting point, ensuring its height is again higher than the rolling assembly, and the door slot construction device can be lifted again. This operation is very simple, allowing the door slot construction device to gradually rise as the door slot is constructed upwards, and the upward movement of the door slot construction device is relatively stable, meeting the requirements for segmented upward construction of the door slot.

[0010] The self-lifting mechanism for a gate slot construction device described in this invention has a simple structure, is easy to install, has low cost, and is convenient to operate. It can stably lift the gate slot construction device; when lifting the gate slot construction device, it has high lifting efficiency, short cycle time, and can reduce lifting costs. Especially for situations requiring segmented lifting of the gate slot construction device, its operation is very convenient, construction speed is fast, and it reduces the occupation of limited on-site lifting resources.

[0011] Preferably, the driving component, the rolling assembly, and the lifting point are located in the same vertical plane. The driving component provides a power point, the lifting point is a force point, and the rolling assembly provides a rolling surface. By setting the above three components in the same vertical plane, after the cable wraps around the rolling surface of the rolling assembly and its two ends are connected to the driving component and the lifting point respectively, the entire cable will be located in the vertical plane, making the lifting of the gate slot construction device more stable and safe.

[0012] Preferably, the rolling assembly is a pulley, an inner and outer sleeve, or inner and outer steel pipes.

[0013] The inner and outer sleeves refer to two sleeves arranged inside and outside the inner sleeve, with the outer sleeve able to rotate around the inner sleeve; the inner and outer steel pipes refer to two steel pipes arranged inside and outside the inner sleeve, with the outer steel pipe able to rotate around the inner steel pipe. Using the above-mentioned rolling components results in low friction, ease of processing, and cost savings.

[0014] Preferably, the driving component is an electric hoist or winch, which, while providing the same power, has a small size, making it easier to install on the gate slot construction device and to be lifted together with the gate slot construction device.

[0015] Preferably, the cable is a steel rope or chain, which has high strength and is beneficial to the stability of the gate slot construction device during use. When the cable is a chain, the rolling assembly is preferably a sprocket pulley.

[0016] Preferably, the lifting point includes a lifting lug, which is used to be welded to the door groove track of the cast-in-place door groove, and the cable connects to the lifting lug;

[0017] Alternatively, the lifting point may include the exposed reinforcing bars of the poured concrete of the door slot, and the cable may be provided with a shackle for fixing the exposed reinforcing bars.

[0018] Alternatively, the lifting point may be a positioning cone pre-embedded in the poured concrete.

[0019] Exposed reinforcing bars include those pre-installed in the already poured concrete surface. This design facilitates the connection of steel cables and lifting points, and the connection ensures that the lifting points can effectively provide support during the lifting of the gate slot construction device.

[0020] A door slot construction system includes a door slot construction device and a mechanism for self-lifting of the door slot construction device as described above.

[0021] This door slot construction system utilizes a rolling assembly and a drive component mounted on the door slot construction device for self-lifting. Based on the required lifting height, a lifting point higher than the rolling assembly is selected on the already constructed door slot. A cable is routed around the rolling assembly and connected at both ends to the drive component and the lifting point, enabling stable simultaneous lifting of the door slot construction device, rolling assembly, and drive component without the need for separate lifting of the drive component. This simplifies operation, improves lifting efficiency, shortens the lifting cycle, and reduces lifting costs. Furthermore, this door slot construction system is simple in structure, easy to install, and advantageous for using door slot construction devices.

[0022] Preferably, the door slot construction device includes two columns and several connecting beams, the two columns respectively correspond to the door slots on the left and right sides, and the two columns are connected by the connecting beams;

[0023] The rolling assembly is connected to the lower part of the column, and the driving component is connected to the upper part of the column.

[0024] The door slot construction device adopts a structure assembled from two columns and several connecting beams, which is easy to manufacture and has a stable structure, facilitating door slot construction. By arranging rolling components and driving parts on the columns in the above-described manner, the stability of the door slot construction device during lifting can be improved. Preferably, the driving part is connected to the top of the column, and the rolling components are connected to the bottom of the column.

[0025] The driving component's horizontal position at the top of the column is adjustable, and the rolling assembly's horizontal position at the bottom of the column is adjustable. Positioning the driving component at the top of the column and the rolling assembly at the bottom, increasing the distance between them, further improves the stability of the door slot construction device during lifting. Adjusting the horizontal position of the rolling assembly at the bottom of the column and the driving component at the top allows for better coordination between the driving component and the lifting point, making the self-lifting mechanism suitable for lifting door slots of different sizes. The horizontal positions of the rolling assembly and driving component can be adjusted by disassembling and reinstalling them, or by using a sliding connection.

[0026] Preferably, a top suspension beam is slidably connected to the top of the column. The top suspension beam is arranged along the upstream-downstream direction or the left-right direction of the column. The top suspension beam can be fixed on the column. The driving component is slidably connected to the top suspension beam along the length direction of the top suspension beam. The driving component can be fixed on the top suspension beam.

[0027] The bottom of the column is slidably connected to a bottom suspension beam, the bottom suspension beam being set in the same direction as the top suspension beam, the bottom suspension beam being fixed on the column, and a rolling assembly being slidably connected to the bottom suspension beam along the length of the bottom suspension beam, the rolling assembly being fixed on the bottom suspension beam.

[0028] The upstream and downstream direction of the column refers to the upstream and downstream direction of the gate, while the left and right direction of the column refers to the width direction of the gate. The top lifting beam is set along the upstream and downstream direction or the left and right direction of the column, which facilitates the sliding connection of the top lifting beam to the top of the column and facilitates the layout of the drive components, rolling components and lifting points. With the above configuration, the sliding direction of the top suspension beam and the sliding direction of the drive component are perpendicular, forming a coordinate system. By sliding the top suspension beam and the drive component, the horizontal position of the drive component on the top surface of the column can be adjusted, and the adjusted drive component can be fixed in the adjusted position, enabling stable use of the drive component. The fixing method can adopt existing technology. The sliding direction of the bottom suspension beam and the sliding direction of the rolling component are also perpendicular, forming a coordinate system. The setting direction of the bottom suspension beam is the same as that of the top suspension beam, that is, it is set in the same upstream and downstream direction of the column, or in the same left and right direction of the column. By sliding the bottom suspension beam and the rolling component, the horizontal position of the rolling component on the bottom surface of the column can be adjusted, and the adjusted rolling component can be fixed in the adjusted position, enabling stable use of the rolling component. The fixing method can adopt existing technology. With the above settings and the use of a sliding connection, it is easy to move the top lifting beam, drive component, bottom lifting beam and rolling component. After the position is adjusted, the drive component and rolling component can be better used in conjunction with the lifting point, so that the mechanism for self-lifting of the door slot construction device can be used to lift the door slot construction device when constructing door slots of different sizes.

[0029] Preferably, a plurality of hanging rings are fitted on the top suspension beam, the hanging rings can slide along the length direction of the top suspension beam, the hanging rings can be fixed on the top suspension beam, and the driving component is attached to the hanging rings.

[0030] The use of hanging rings to attach the drive components facilitates their installation and removal. By sliding and then fixing the hanging rings on the top suspension beam, and then attaching the drive components to the hanging rings, the position of the drive components on the top suspension beam can be easily adjusted.

[0031] Preferably, the rolling component is a pulley, which is slidably connected to the bottom suspension beam, and the pulley shaft is rotatable in the horizontal direction.

[0032] Using pulleys as the rolling component, the pulleys have rolling surfaces with limiting points on both sides, effectively limiting the cable and improving the stability of the gate slot construction device during lifting. By sliding the pulleys on the bottom lifting beam, the horizontal position of the pulleys at the bottom of the column can be adjusted, allowing them to better cooperate with the lifting points and lifting mechanism to lift the gate slot construction device. During the installation of the self-lifting mechanism, factors such as the size of the gate slot and the gate slot construction device may prevent the lifting points and drive components from being configured to fit the rolling surface of the pulleys. This can cause the cable to not be aligned with the same vertical plane when it passes over the pulley and is taut, making the self-lifting mechanism difficult to use normally. By allowing the pulley shaft to rotate horizontally, the pulley surface can rotate horizontally on the bottom lifting beam, changing the angle of its rolling surface. This adapts to the installation position of the lifting points and drive components, ensuring that the cable is aligned with the same vertical plane when it passes over the pulley and is taut, thus enabling the self-lifting mechanism to function properly.

[0033] Preferably, each column is lifted by two lifting devices, with the two lifting devices corresponding to each column respectively located on the upstream and downstream sides of the column. The upstream and downstream sides of the column correspond to the upstream and downstream inner sides of the gate slot, and also to the upstream and downstream sides of the gate. This arrangement, with lifting devices on the upstream and downstream sides of each column, serves two purposes: first, it avoids interference with the gate slot construction device during gate slot construction; second, it improves the stability and safety of the gate slot construction device during lifting.

[0034] A self-lifting method for a door slot construction device, comprising lifting using any of the above-described self-lifting mechanisms for the door slot construction device, the self-lifting method including the following lifting steps:

[0035] S1. Install the self-lifting mechanism for the gate slot construction device as described in any one of claims 1-5, and connect the cable of the self-lifting mechanism for the gate slot construction device to the corresponding lifting point;

[0036] S2. Simultaneously use all the drive components to shorten all the cables, so that the gate slot construction device is raised to the preset height, thereby raising the gate slot construction device.

[0037] In step S1, the structure of the self-lifting mechanism for the gate slot construction device described above is installed. A drive component and a rolling assembly are installed on the gate slot construction device. Lifting points or construction lifting points are selected on the poured gate slot. The drive component and the lifting points are connected by cables that bypass the rolling surface of the rolling assembly. The cables can be integrated into the drive component or connected to it. When lifting the gate slot construction device, all drive components are simultaneously controlled to retract all cables, causing each cable to be continuously shortened by its corresponding drive component. The cables provide an upward force to the gate slot construction device through the rolling assembly, allowing the left and right sides of the gate slot construction device to be smoothly lifted upwards. The self-lifting method for the gate slot construction device described in this invention uses a simple and easy-to-install mechanism. Furthermore, it is simple to operate, provides stable lifting, high lifting efficiency, short cycle time, and reduces lifting costs.

[0038] Preferably, when the gate slot construction device needs to perform the next stage of lifting, the cable is bypassed by the corresponding rolling component, and both ends of the cable are connected to the corresponding driving component and the lifting point corresponding to the next stage of lifting, respectively, and then step S2 is repeated.

[0039] When a single lift is insufficient for the door slot construction device to complete the door slot construction, segmented lifting is required. After constructing the door slot segment that can be constructed at the current height of the door slot construction device, if further lifting is needed, one end of the cable is connected to the drive unit, and the other end is reconnected to the lifting point selected at a higher level for the next segment of lifting. This allows for repeated lifting of the door slot construction device. When segmented lifting of the door slot construction device is required, the top surface of the poured door slot will rise after construction, allowing for the selection of higher lifting points. No additional equipment is needed to raise the drive unit; simply connecting the cable to the higher lifting point allows for continuous lifting of the door slot construction device. This operation is extremely convenient, greatly improving lifting efficiency, shortening the lifting cycle, and reducing lifting costs.

[0040] Preferably, all the cables are connected one by one to the corresponding lifting points of the next lifting section.

[0041] Before proceeding to the next lifting stage, when disconnecting one of the cables from the previous lifting point, the remaining cables, using their respective lifting points, bear the load for the portal frame construction device. After connecting this cable to the lifting point of the next lifting stage and establishing load-bearing capacity, the next cable is then disconnected from its corresponding lifting point of the previous stage. This method eliminates the need for additional fixing devices on the portal frame construction device and ensures its stability while allowing all cables to be connected sequentially to the lifting points of the next lifting stage, thus enabling the next lifting operation. This method is simple, quick, and stable.

[0042] Preferably, in step S2, after the door groove construction device is raised to a preset height, the door groove construction device is fixed to the constructed door groove.

[0043] In this scheme, after the door slot construction device is raised to the designated height, it is first fixed to ensure stable and safe construction of the door slot. The device is first secured to the already poured door slot using fixing devices. Then, all the cables are disconnected from the corresponding lifting points of the previous lifting section, and all cables are connected to the corresponding lifting points of the next lifting section. Because the door slot construction device is fixed first, the fixing must be removed before lifting it. This method also achieves the lifting of the door slot construction device, is more stable, and avoids interference with the door slot construction. When connecting all the cables to the corresponding lifting points of the next lifting section, this can be done one by one or simultaneously.

[0044] Preferably, in step S2, before simultaneously using all the drive components to shorten all the cables, the step further includes: removing the fixation to the gate slot construction device.

[0045] The door slot construction device needs to be fixed when constructing the first door slot segment on the construction sill. Therefore, before lifting the door slot construction device, the fixing to the door slot construction device needs to be removed. After the fixing is removed, the load-bearing capacity of the door slot construction device relies on the lifting points, cables, and drive components. In the previous lifting stage, after the door slot construction device is lifted to the preset height, it is fixed to the constructed door slot. When the door slot construction device needs to be lifted to the next stage, the cables are bypassed by the corresponding rolling components, and the two ends of the cables are connected to the corresponding drive components and the lifting points corresponding to the next lifting stage, respectively. Before simultaneously using all the drive components to shorten all the cables, the following step is also included: removing the fixing to the door slot construction device. After removal, the load-bearing capacity of the door slot construction device relies on the lifting points, cables, and drive components.

[0046] Preferably, if the cable is in a slack state before removing the fixation to the gate slot construction device, the process further includes a cable tensioning step: tensioning the corresponding cable by means of the corresponding drive component.

[0047] Before removing the fixing of the door slot construction device, if the cable is in a slack state, tighten the cable to replace the fixing of the door slot construction device, so as to support the door slot construction device, ensure the safety when removing the fixing of the door slot construction device, and facilitate the subsequent quick and stable lifting of the door slot construction device by controlling the drive component to contract the corresponding cable.

[0048] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0049] 1. The self-lifting mechanism for the gate slot construction device described in this invention has a simple structure, low cost, and convenient operation, and can stably lift the gate slot construction device. When lifting the gate slot construction device, it has high lifting efficiency, short cycle time, and can reduce lifting costs. It is particularly convenient for situations requiring segmented lifting of the gate slot construction device, reducing the occupation of limited on-site lifting resources.

[0050] 2. The door slot construction system in this solution utilizes a rolling assembly and a drive component installed on the door slot construction device for self-lifting. Lifting points are selected on the constructed door slot. Cables are routed around the rolling assembly on the door slot construction device, with both ends connected to the drive component and the lifting points. This allows for stable lifting of the door slot construction device while simultaneously lifting the rolling assembly and drive component, eliminating the need for separate lifting of the drive component. This convenient operation improves the lifting efficiency of the door slot construction device, shortens the lifting cycle, and reduces lifting costs. Its simple structure and easy installation are beneficial for door slot construction.

[0051] 3. The self-lifting method of the gate slot construction device described in this invention uses a mechanism for self-lifting of the gate slot construction device with a simple structure, convenient installation, safe and efficient operation, and short cycle, which helps to reduce construction costs. Attached Figure Description

[0052] Figure 1 This is a top view of the arrangement of the self-lifting mechanism for the gate slot construction device in Embodiment 1;

[0053] Figure 2 yes Figure 1 A magnified view of the area within the middle circle;

[0054] Figure 3 This is a schematic diagram of the arrangement of the self-lifting mechanism for the gate slot construction device in Example 1;

[0055] Figure 4 This is a three-dimensional structural diagram of the door slot construction device in Example 1 when a top hanging beam, sliding component and other structures are installed on it;

[0056] Figure 5 yes Figure 4 A magnified view of a portion of point A in the middle;

[0057] Figure 6 yes Figure 4 A magnified view of a portion of point B in the middle;

[0058] Figure 7 This is a front view of the door slot construction device in Example 1 when the top hanging beam, sliding components and other structures are installed on it;

[0059] Figure 8This is a top view of the door slot construction device in Example 1 when it is equipped with a top hanging beam, sliding components and other structures.

[0060] Figure 9 This is a side view of the door slot construction device in Example 1 when it is equipped with a top hanging beam, sliding components and other structures.

[0061] Icons: 1-Drive component; 2-Rolling assembly; 3-Lifting point; 4-Cable; 5-Gateway construction device; 51-Column; 52-Connecting beam; 511-Top lifting beam; 512-Hanging ring; 513-Bottom lifting beam; 6-Gateway; 61-Exposed reinforcing steel; 62-First side of the gateway; 63-Second side of the gateway. Detailed Implementation

[0062] The present invention will now be described in detail with reference to the accompanying drawings.

[0063] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0064] Example 1

[0065] This embodiment provides a self-lifting mechanism for a gate slot construction device, see [link / reference]. Figure 1-9 It includes at least two lifting devices, each of which is used to lift the corresponding side of the door groove construction device 5 in the left and right directions;

[0066] The lifting device includes a driving component 1, a rolling assembly 2, and a cable 4. The rolling assembly 2 and the driving component 1 are both used to connect to the door groove construction device 5. The driving component 1 passes around the corresponding rolling assembly 2 via the corresponding cable 4 and connects to the corresponding lifting point 3. The driving component 1 can shorten and lengthen the cable 4. The driving component 1 and the lifting point 3 are both located above the rolling assembly 2.

[0067] During gate construction, the gate slots 6 on both the left and right sides of the gate need to be constructed. The left and right sides of the gate slot construction device 5 are used to construct the gate slots 6 on the left and right sides of the gate, such as... Figure 1 The self-lifting mechanism of this solution includes at least two lifting devices. Each of the left and right sides of the door slot construction device 5 is lifted by at least one lifting device, so as to ensure that the left and right sides of the door slot construction device 5 can be lifted upward in a balanced manner under the force at the same time. The number of lifting devices on the left and right sides of the door slot construction device 5 is determined according to the actual situation, and can be one, two or three, etc.

[0068] This embodiment also provides a door groove construction system, including a door groove construction device 5 and the above-mentioned mechanism for self-lifting of the door groove construction device.

[0069] In this embodiment, in order to ensure that the door groove construction device 5 can be lifted stably, such as Figure 1-3 As shown. The gate slot construction device 5 includes two columns 51 and several connecting beams 52. The two columns 51 correspond to the left and right gate slots 6 respectively, and the two columns 51 are connected by the connecting beams 52. The gate slot construction device 5 adopts a structure assembled from two columns 51 and several connecting beams 52, which is easy to process and has a stable structure, facilitating the construction of the gate slots 6. Each column 51 is lifted by two lifting devices, and the two lifting devices corresponding to each column 51 are symmetrically arranged on the upstream and downstream sides of the column 51. The upstream and downstream sides of the column 51 correspond to the upstream and downstream inner sides of the gate slots 6, that is, the second side 63 of the gate slots 6, and also correspond to the upstream and downstream sides of the gate. Through the above arrangement, lifting devices are set on the upstream and downstream sides of each column 51 for lifting, which firstly avoids interference with the construction of the gate slots 6 by the gate slot construction device 5, and secondly improves the stability and safety of the gate slot construction device 5 during lifting. Furthermore, the lifting points 3 of the lifting devices on the upstream and downstream sides of each column 51 can be set on the first side 62 of the door slot, or they can be set on the second side 63 of the upstream and downstream door slots respectively. In this embodiment, the lifting points 3 of the lifting devices on the upstream and downstream sides of each column 51 are located on the second side 63 of the upstream and downstream door slots respectively, so as to avoid interference between the two lifting devices.

[0070] In this design, the cable 4 bypasses the rolling assembly 2, with its two ends being the lifting point 3 and the driving component 1, respectively. There is no relative displacement between the rolling assembly 2 and the cable 4. Structures such as pulleys, inner and outer sleeves, or inner and outer steel pipes provide a rolling surface for the cable 4, preventing it from being damaged by severe friction. The driving component 1 is an electric hoist or winch, which is small in size and powerful, making it convenient to install on the gate slot construction device 5. It enables the cable 4 to be shortened. The cable 4 can be its own structure or a structure connected to the driving component 1. The cable 4 can be made of steel rope or chain, and the steel rope is generally an anti-rotation steel rope, i.e., a non-rotating steel rope.

[0071] In this design, the lifting point 3 includes a lifting lug, which is welded to the door groove track of the pre-cast door groove 6. The cable 4 connects to the lifting lug, as shown below. Figure 3 As shown on the right side; or the lifting point 3 includes the exposed reinforcing steel 61 of the poured concrete of the door slot 6, and the cable 4 is provided with a shackle, which is used to fix the exposed reinforcing steel 61 to the cable. Figure 3As shown on the left, the exposed reinforcing bars 61 include reinforcing bars reserved in the concrete slab surface; or the lifting point 3 is a positioning cone embedded in the poured concrete. Using the above scheme facilitates the connection between the steel cable and the lifting point 3, and after connection, the lifting point 3 can better provide force for the lifting of the gate slot construction device 5. Figure 3 The lifting points 3 selected on the left and right sides can be interchanged, or both sides can be selected to have the lifting lugs welded to the door groove track of the door groove 6, or both sides can be selected to be fixedly connected to the exposed steel bars 61 by shackles.

[0072] When the drive component 1 shortens the cable 4, it acts as an active force point, applying a force away from the rolling component 2. At this time, the rolling component 2 rolls, and the cable 4 continuously shortens towards the drive component 1. Meanwhile, the lifting point 3 acts as a passive force point, applying a force away from the rolling component 2 to the end of the cable 4 it is closest to. Because both the drive component 1 and the lifting point 3 are located above the rolling component 2, they can provide an upward force to the rolling component 2 through the cable 4. Since both the drive component 1 and the rolling component 2 are located on the door slot construction device 5, they move with the door slot construction device 5, causing the rolling component 2, the corresponding side of the door slot construction device 5 lifted by the lifting device, and the drive component 1 to rise together. The height that the corresponding side of the door slot construction device 5 can rise to is the height difference between the lifting point 3 and the rolling component 2. The position of the lifting point 3 and the rolling component 2 can be arranged according to the actual required lifting height to adjust the maximum height of a single lift.

[0073] In this embodiment, the rolling component 2 is connected to the lower part of the column 51, and the driving component 1 is connected to the upper part of the column 51.

[0074] The lifting point 3 is at the same height as the initial position of the driving component 1, or the lifting point 3 is located within 0.5-1m below the initial position of the driving component 1, such as... Figure 3 , Figure 3 The height difference between the relative positions of the drive component 1 and the lifting point 3 is for illustrative purposes only. By arranging the column 51, lifting point 3, and drive component 1 in the above manner, the stability of the door slot construction device 5 during lifting can be improved, and the maximum lifting height that the door slot construction device 5 can lift in a single operation can also be increased.

[0075] In this embodiment, as Figure 3-9As shown, the driving component 1 is connected to the top of the column 51, and the rolling component 2 is connected to the bottom of the column 51, which improves the stability of the door groove construction device 5 during lifting. Furthermore, the driving component 1 can be adjusted to its horizontal position at the top of the column 51; the rolling component 2 can be adjusted to its horizontal position at the bottom of the column 51, so that after adjustment, the driving component 1 and the rolling component 2 can better cooperate with the lifting point 3, making the self-lifting mechanism of the door groove construction device 5 suitable for lifting the door groove construction device 5 during the construction of door grooves 6 of different sizes. After adjustment, the driving component 1, the rolling component 2, and the lifting point 3 are located in the same plane, making the lifting of the door groove construction device 5 more stable. The horizontal position adjustment of the rolling component 2 and the driving component 1 can be achieved by disassembling and reinstalling them, or by using a sliding connection, etc.

[0076] In this embodiment, a top hanging beam 511 is slidably connected to the top of the column 51, and a bottom hanging beam 513 is slidably connected to the bottom of the column 51. The top hanging beam 511 and the bottom hanging beam 513 should be set in the same direction, and can be set in any direction of the column 51, as long as they can be slidably connected to the column 51. Preferably, the top hanging beam 511 is set along the upstream-downstream direction or the left-right direction of the column 51, and the top hanging beam 511 can be fixed on the column 51. The driving component 1 is slidably connected to the top hanging beam 511 along the length direction of the top hanging beam 511, and the driving component 1 can be fixed on the top hanging beam 511. The bottom hanging beam 513 can be fixed on the column 51, and the rolling component 2 is slidably connected to the bottom hanging beam 513 along the length direction of the bottom hanging beam 513, and the rolling component 2 can be fixed on the bottom hanging beam 513.

[0077] In this embodiment, as Figure 5 As shown, the column 51 includes four vertical beams and several horizontal beams. Each set of four horizontal beams forms a rectangular frame at a certain height. These rectangular frames, formed by the horizontal beams, connect the four vertical beams at different heights. The column 51 has two top hanging beams 511 at its top. More preferably, the two top hanging beams 511 are arranged parallel to each other on the upstream and downstream sides of the doorway construction device 5. The top hanging beams 511 are slidably connected to the top of the column 51 and can slide along a direction perpendicular to the column 511. The top hanging beams 511 can also be fixed at the top of the column 51. Specifically, sliding frames are fixedly connected to the lower ends of both ends of the top hanging beams 511. The sliding frames are equipped with fixing bolts and are fitted onto the horizontal beams at the top of the column 51. The sliding frames can drive the top hanging beams 511 to slide along the horizontal beams at the top of the column 51. After adjusting the horizontal position of the top hanging beams 511, the fixing bolts can lock the sliding frames, preventing them from sliding on the horizontal beams at the top of the column 51.

[0078] In this embodiment, the driving component 1 is slidably connected to the top suspension beam 511 along its length, and the driving component 1 can be fixed on the top suspension beam 511. Specifically, a plurality of hanging rings 512 are sleeved on the top suspension beam 511. The hanging rings 512 can slide along the length of the top suspension beam 511, and the hanging rings 512 can be fixed on the top suspension beam 511 by bolts. The driving component 1 is hooked onto the hanging rings 512, and the position of the driving component 1 hooking onto the hanging rings 512 is adapted to the size of the hanging rings 512, so as to ensure the stability of the driving component 1 when hooked onto the hanging rings 512. Furthermore, by sliding on the top suspension beam 511, the hanging rings 512 change the position of the driving component 1 hooked onto the top suspension beam 511, thereby adjusting the horizontal position of the driving component 1. With the above settings, the sliding direction of the top suspension beam 511 and the sliding direction of the drive component 1 are perpendicular, forming a coordinate system. By sliding the top suspension beam 511 and adjusting the position of the drive component 1 on the top suspension beam 511, the horizontal position of the drive component 1 on the top surface of the column 51 can be adjusted, and the adjusted drive component 1 can be fixed in the adjusted position, so that the drive component 1 can be used stably.

[0079] The column 51 has a bottom suspension beam 513 at its bottom, which is slidably connected to the bottom of the column 51. The bottom suspension beam 513 can slide in a direction perpendicular to itself, and this sliding can be achieved using a sliding frame at the top of the column 51. After adjustment, the bottom suspension beam 513 can be fixed at the bottom of the column 51, such as by bolts. With the above configuration, the sliding direction of the bottom suspension beam 513 and the sliding direction of the rolling component 2 are perpendicular, forming a coordinate system. By sliding the bottom suspension beam 513 and the rolling component 2, the horizontal position of the rolling component 2 on the bottom surface of the column 51 can be adjusted, and the adjusted rolling component 2 can be fixed in the adjusted position, allowing the rolling component 2 to be used stably. With the above settings, the sliding connection facilitates the movement of the top lifting beam 511, the drive component 1, the bottom lifting beam 513, and the rolling component 2. This allows the drive component 1 and the rolling component 2 to better cooperate with the lifting point 3 after the position is adjusted, so that the self-lifting mechanism of the door groove construction device 5 can be used to lift the door groove construction device 5 when constructing door grooves 6 of different sizes.

[0080] In this embodiment, as Figure 6As shown, the bottom lifting beam 513 is a crossbeam at the bottom of the column 51. This crossbeam is fixedly connected to the bottom of the column 51, eliminating the need for a sliding connection and enhancing stability. In this embodiment, the rolling assembly 2 is slidably connected to the bottom lifting beam 513 along its length, and can be fixed to the bottom lifting beam 513. In a preferred embodiment, the rolling assembly 2 is a pulley with a rolling surface and limiting features on both sides, effectively limiting the cable 4 and improving the stability of the doorway construction device 5 during lifting. The pulley is slidably connected to the bottom lifting beam 513 and can be fixed to it. By sliding the pulley on the bottom lifting beam 513, the horizontal position of the pulley at the bottom of the column 51 can be adjusted, allowing it to better cooperate with the lifting point 3 and the lifting mechanism to lift the doorway construction device 5. Figure 6 As shown, a sliding frame is fixedly connected to the bottom of the pulley. The sliding frame is fitted over the bottom crossbeam and can be fixed by bolts. The outer side of the sliding frame is equipped with a number of stiffening plates and other stiffening components, which can improve the strength of the sliding frame and enable it to meet the load-bearing capacity when providing upward force to the bottom crossbeam.

[0081] In addition, during the installation of the self-lifting mechanism, factors such as the dimensions of the door slot 6 and the door slot construction device 51 may prevent the lifting point 3 and the drive component 1 from being configured to match the rolling surface of the pulley. This would prevent the cable 4 from being positioned on the same vertical plane when it passes over the pulley and is tightened, making it difficult for the self-lifting mechanism to function properly. In this embodiment, the pulley shaft of the pulley can rotate horizontally, allowing the pulley surface of the pulley to rotate horizontally on the bottom lifting beam 513, changing the angle of its rolling surface. This adapts to the installation position of the lifting point 3 and the drive component 1, ensuring that the cable 4 is positioned on the same vertical plane when it passes over the pulley and is tightened, thus enabling the self-lifting mechanism to function properly. Specifically, the pulley axle is horizontally mounted on the pulley seat, which is rotatably connected to the upper part of the sliding frame. The sliding frame is fitted over the bottom crossbeam. In this way, the pulley can slide along the bottom crossbeam, while the pulley seat can drive the pulley axle to rotate horizontally, adjusting the angle of the pulley's rolling surface to accommodate the installation positions of the lifting point 3 and the drive component 1. This ensures that when the cable 4 passes over the pulley and is tightened, it is positioned on the same vertical plane, allowing the self-lifting mechanism to function properly. In this embodiment, the pulley can rotate around the center of the sliding frame, changing the angle of its rolling surface.

[0082] The self-lifting mechanism for the door slot construction device described in this embodiment has a simple structure, low cost, and convenient operation, and can stably lift the door slot construction device 5. During installation, the lifting mechanism and the rolling component 2 can be adjusted to their horizontal positions on the column 51. The adjustment is convenient and can adapt to the lifting of door slots 6 of different sizes during construction. Moreover, when lifting the door slot construction device 5, its lifting efficiency is high, the cycle is short, and the lifting cost is reduced. Especially for when the door slot construction device 5 needs to be lifted in sections, its operation is very convenient, which greatly improves the lifting efficiency, shortens the lifting cycle, reduces the lifting cost, and reduces the occupation of limited lifting resources on site.

[0083] The door slot construction system provided in this embodiment, by installing a rolling component 2 and a driving component 1 for the self-lifting mechanism of the door slot construction device 5 on the door slot construction device 5, and selecting a lifting point 3 on the constructed door slot 6, and by passing a cable 4 around the rolling component 2 on the door slot construction device 5 and connecting the driving component 1 and the lifting point 3 at both ends respectively, can stably lift the door slot construction device 5, the rolling component 2 and the driving component 1 simultaneously without the need to lift the driving component 1 separately. Its operation is convenient, which can improve the lifting efficiency of the door slot construction device 5, shorten the lifting cycle and reduce the construction cost.

[0084] Example 2

[0085] This embodiment provides a self-lifting method for a door slot construction device, including the following lifting steps:

[0086] S1. Install the self-lifting mechanism for the gate slot construction device as described in any one of claims 1-5, and connect the cable 4 of the self-lifting mechanism for the gate slot construction device to the corresponding lifting point 3.

[0087] S2. Simultaneously use all the drive components 1 to shorten all the cables 4, so that the door groove construction device 5 is raised to the preset height, thereby realizing the raising of the door groove construction device 5.

[0088] Specifically, in step S1, the structure of the self-lifting mechanism for the door groove construction device described in Embodiment 1 is installed. A driving component 1 and a rolling assembly 2 are installed on the door groove construction device 5. A lifting point 3 or a construction lifting point 3 is selected on the already poured door groove 6. The driving component 1 and the lifting point 3 are connected by a cable 4 that passes around the rolling surface of the rolling assembly 2. The cable 4 can be integrated into the driving component 1 or connected to it. During installation, the horizontal positions of the rolling assembly 2 and the driving component 1 can be adjusted according to the selectable positions of the lifting point 3, so that the driving component 1, the rolling assembly 2, and the lifting point 3 are located in the same plane. Preferably, in step S1, the driving component 1 is connected to the top of the door groove construction device 5, and the rolling assembly 2 is connected to the bottom of the door groove construction device 5; and the lifting point 3 is at the same height as the initial position of the driving component 1, or the lifting point 3 is located within 0.5-1m below the initial position of the driving component 1. By arranging the rolling assembly 2 and the driving component 1 on the door slot construction device 5 in the above manner, the stability of the door slot construction device 5 during lifting can be improved, and the maximum lifting height that the door slot construction device 5 can lift in a single operation can be increased.

[0089] After the self-lifting mechanism for the door slot construction device is installed, the door slot construction device 5 needs to be fixed when it is on the first door slot segment of the construction sill. Therefore, before lifting the door slot construction device 5, the fixing to the door slot construction device 5 needs to be removed. After the fixing is removed, the load-bearing capacity of the door slot construction device 5 is achieved by the lifting point 3, the cable 4, and the drive component 1. Before removing the fixing of the door slot construction device 5, if the cable 4 is in a slack state, the cable 4 is tensioned to replace the fixing of the door slot construction device 5, thus providing load-bearing capacity for the door slot construction device 5 and ensuring safety when removing the fixing of the door slot construction device 5. This also facilitates the subsequent rapid and stable lifting of the door slot construction device 5 by controlling the drive component 1 to retract the corresponding cable 4. Specifically, before removing the fixing of the door slot construction device 5, the cable 4 is tensioned: the cable 4 is shortened and tensioned by the drive component 1. Furthermore, if there are at least two, such as two, three, or four, cables 4 in a relaxed state, each cable 4 is tightened one by one. This method of tightening each cable 4 one by one facilitates the tensioning of all cables 4.

[0090] After removing the fixings, the door slot construction device 5 is lifted. Simultaneously, all drive components 1 are operated to shorten all cables 4, raising the door slot construction device 5 to a preset height. When the construction of the door slot 6 can be completed in a single lift, the entire lifting process of the door slot construction device 5 is achieved. Simultaneously shortening all cables 4 by all drive components 1 continuously tightens all cables 4. The cables 4 provide an upward force to the door slot construction device 5 through the rolling assembly 2, allowing the left and right sides of the door slot construction device 5 to rise smoothly, improving the balance of the door slot construction device 5 during lifting.

[0091] If a single lift is insufficient for the door slot construction device 5 to complete the construction of the door slot 6, then segmented lifting is required. After completing the door slot segment that can be constructed at the current height of the door slot construction device 5, if it is necessary to lift the door slot construction device 5 again, one end of the cable 4 is connected to the drive component 1, and the other end is connected to the lifting point 3 at a higher position for the next lifting segment, so that the door slot construction device 5 can be lifted again.

[0092] When the gate slot construction device 5 needs to perform the next stage of lifting, the cable 4 is bypassed by the corresponding rolling component 2, and both ends of the cable 4 are connected to the corresponding driving component 1 and the lifting point 3 corresponding to the next stage of lifting, respectively, and then the step S2 is repeated.

[0093] This embodiment provides two methods for connecting all cables 4 to the lifting points 3 corresponding to the next lifting segment.

[0094] The first method involves connecting each of the cables 4 to the corresponding lifting point 3 for the next lifting segment. Before proceeding with the next lifting segment, when disconnecting one cable 4 from the lifting point 3 of the previous segment, the remaining cables 4, using the lifting point 3, provide support for the gate slot construction device 5. After connecting this cable 4 to the lifting point 3 of the next lifting segment and establishing support, the next cable 4 is then disconnected from its corresponding lifting point 3 of the previous segment. This method eliminates the need for additional fixing devices on the gate slot construction device 5 and ensures its stability while allowing all cables 4 to be connected to the corresponding lifting points 3 of the next lifting segment, thus enabling the next lifting segment to proceed. This method is simple, quick, and stable.

[0095] In the second method, in step S2, firstly, the fixing of the door groove construction device 5 is removed, then all the drive components 1 are used simultaneously to shorten all the cables 4, and then the door groove construction device 5 is raised to a preset height. Then, the door groove construction device 5 is fixed to the door groove segment that has been constructed below. When the door groove construction device 5 needs to be lifted to the next section, the connection between all the cables 4 and the corresponding lifting points 3 of the previous section is removed, and then the cables 4 are bypassed around the corresponding rolling components 2 and the two ends of the cables 4 are respectively connected to the corresponding drive components 1 and the lifting points 3 corresponding to the next section of lifting. Step S2 is repeated.

[0096] In step S2, after the door slot construction device 5 is raised to the designated height, it is first fixed to ensure stable and safe construction of the door slot 6. The door slot construction device 5 can be fixed using steel sections welded to the bottom of the column 51 for fall prevention. First, the door slot construction device 5 is fixed to the already poured door slot 6 using a fixing device. Then, all the connections of the cables 4 to the corresponding lifting points 3 are removed, and all the cables 4 are connected to the lifting points 3 corresponding to the next lifting section. Since the door slot construction device 5 is fixed first, it needs to be unfixed before lifting it. Specifically, if the cable 4 is connected to the drive component 1, the entire cable 4 is removed from the drive component 1 and the lifting point 3; if the cable 4 is part of the drive component 1, the end of the cable 4 connected to the lifting point 3 is removed, and then the cable 4 is retracted to the drive component 1. After removing the connection between the cable 4 and the lifting point 3 in the above manner, the door slot segment that can be constructed at the current height of the door slot construction device 5 can be constructed, thus reducing the impact of the cable 4 on the construction of the door slot 6. This method can also achieve the lifting of the door slot construction device 5, and it is more stable and can avoid interference with the construction of the door slot 6, but its operation is relatively complicated. When connecting all the cables 4 to the lifting point 3 corresponding to the next lifting section, they can be operated one by one or simultaneously.

[0097] The self-lifting method for the gate slot construction device described in this embodiment employs a simple and easy-to-install mechanism for self-lifting the gate slot construction device 5. This mechanism is simple to operate, provides stable lifting, high lifting efficiency, short cycle time, and reduces lifting costs. Particularly suitable for segmented lifting of the gate slot construction device 5, after the device constructs the gate slot 6, the top surface of the already poured gate slot 6 will rise, allowing for the selection of higher lifting points 3. No other equipment is needed to raise the drive component 1; simply connecting the cable 4 to the higher lifting point 3 allows for continuous lifting of the gate slot construction device 5. This highly convenient operation improves lifting efficiency and reduces project costs.

[0098] 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, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mechanism for self-lifting of a door pocket construction device, the door pocket construction device (5) comprising two upright columns (51) and a plurality of connecting beams (52), the two upright columns (51) corresponding to left and right door pockets (6) respectively, and the two upright columns (51) being connected by the connecting beams (52); characterized in that, The mechanism for self-lifting of the trench construction device comprises lifting devices, each of the upright columns (51) is lifted by two lifting devices, and the two lifting devices corresponding to each of the upright columns (51) are arranged on the upstream and downstream sides of the upright column (51) respectively; The lifting device comprises a driving component (1), a rolling assembly (2) and a cable (4), the rolling assembly (2) and the driving component (1) are both used for connecting the trench construction device (5), the driving component (1) passes through a corresponding rolling assembly (2) and connects a corresponding lifting point (3) through a corresponding cable (4), the driving component (1) can shorten and lengthen the cable (4), the driving component (1) and the lifting point (3) are both located above the rolling assembly (2), the driving component (1), the rolling assembly (2) and the lifting point (3) are located in the same vertical plane, and the lifting points (3) of the lifting devices on the upstream and downstream sides of each of the upright columns (51) are located on the upstream and downstream second sides (63) of the trench respectively.

2. The mechanism for self-lifting of a door pocket construction apparatus according to claim 1, characterized in that, The rolling assembly (2) is a pulley, an inner and outer sleeve or an inner and outer steel pipe.

3. The mechanism for self-lifting of a door pocket construction apparatus according to claim 1, characterized in that, The driving component (1) is an electric hoist or a winch, and the cable (4) is a steel wire or a chain.

4. The mechanism for self lifting of a door pocket construction apparatus according to any one of claims 1-3, characterized in that, The lifting point (3) comprises an ear, the ear is used for being welded on a trench track of a poured trench (6), and the cable (4) is connected to the ear. Or the lifting point (3) comprises exposed reinforcing steel bars (61) of the poured concrete of the trench (6), the cable (4) is provided with a shackle, and the shackle is used for fixedly connecting the exposed reinforcing steel bars (61). Or the lifting point (3) is a positioning cone embedded in the poured concrete.

5. A door pocket construction system characterized by, The mechanism for self-lifting of the trench construction device comprises a trench construction device (5) and the mechanism for self-lifting of the trench construction device according to any one of claims 1-4.

6. The trench construction system according to claim 5, characterized in that, The rolling assembly (2) is connected to the lower part of the upright column (51), and the driving component (1) is connected to the upper part of the upright column (51).

7. The under-sink construction system of claim 6, wherein, The driving component (1) is connected to the top of the upright column (51), and the rolling assembly (2) is connected to the bottom of the upright column (51). The horizontal position of the driving component (1) at the top of the upright column (51) can be adjusted, and the horizontal position of the rolling assembly (2) at the bottom of the upright column (51) can be adjusted.

8. A self-lifting method of a door pocket construction apparatus, characterized by, The method comprises the following steps: S1, installing the mechanism for self-lifting of the trench construction device according to any one of claims 1-4, and connecting the cables (4) and the corresponding lifting points (3) of the mechanism for self-lifting of the trench construction device; S2, shortening all the cables (4) by synchronously using all the driving components (1), so that the trench construction device (5) is lifted to a preset height, and the lifting of the trench construction device (5) is realized.

9. The self-lifting method of a door pocket construction apparatus according to claim 8, wherein When the trench construction device (5) needs to be lifted by the next section, the cable (4) is passed through a corresponding rolling assembly (2), and the two ends of the cable (4) are connected to a corresponding driving component (1) and a lifting point (3) corresponding to the next section respectively, and then the step S2 is repeated.

10. The self-lifting method of a door pocket construction apparatus according to claim 9, wherein Connect each of the cables (4) to the next section of the hoisting corresponding lifting point (3) in sequence.

11. The self-lifting method of a trench construction apparatus according to any one of claims 8 to 9, characterized in that, In the step S2, after the door slot construction device (5) is lifted to the preset height, the door slot construction device (5) is fixed to the constructed door slot (6).

12. The self-lifting method of a door pocket construction apparatus according to claim 11, wherein In the step S2, before all the cables (4) are retracted by synchronously using all the driving components (1), the step of removing the fixing of the door slot construction device (5) is further included.

13. The self-lifting method of a door pocket construction apparatus according to claim 12, wherein Before the fixing of the door slot construction device (5) is removed, if the cable (4) is in a slack state, the step of cable tensioning is further included, in which the corresponding cable (4) is tensioned by the corresponding driving component (1).

Images