Circulating lifting device for building machine

Abstract

The application relates to the field of building machine jacking technology, and discloses a circulating lifting device with anti-falling for a building machine, which comprises a plurality of positioning mechanisms installed on walls, a jacking guide rail is arranged between the positioning mechanisms, the positioning mechanism comprises a U-shaped support, one side of the U-shaped support is connected with a bolt piece fixedly connected with the wall, and one side of the U-shaped support is provided with an anti-falling assembly for guiding and anti-falling treatment of the jacking guide rail after jacking. The circulating lifting device with anti-falling for the building machine can separately lock the jacking guide rail after jacking movement in one direction, improves the anti-falling performance of the jacking guide rail, the limiting block in the limiting piece cannot be inserted into the anti-falling opening in the corresponding position, the limiting block and the elastic plate will be in a contraction state, the elastic plate touches and opens the touch switch, the touch switch opens the alarm to form an alarm work, and the device has a good automatic alarm function.

Description

Technical Field

[0001] This invention relates to the field of building construction machine lifting technology, specifically to a fall-proof circulating lifting device for building construction machines. Background Technology

[0002] In high-rise building construction, steel platforms used for structural formwork or similar construction equipment such as aerial building machines are employed. Chinese invention patent CN116357067A discloses a multi-position, small-tonnage, short-stroke cyclic lifting system for an aerial building machine. By inserting a first load-bearing tongue into a corresponding climbing hole, a U-shaped suspension shoe can suspend and support the lifting guide rail. Furthermore, the use of limiting rollers and limiting plates restricts the first load-bearing tongue, preventing it from flipping downwards. This ensures the stability of the U-shaped suspension shoe's support for the lifting guide rail, guaranteeing the stability of the lifting guide rail during lifting or non-lifting processes.

[0003] In related technologies, existing building construction machines require corresponding lifting equipment for jacking operations after construction. Most existing jacking methods use hydraulic cylinders for cyclic jacking, but this has certain drawbacks in actual operation, such as poor fall protection. During long-term cyclic jacking, the structure at each anchor point bears a large load, which can easily damage and deform the jacking guide rails. Deformation at the locking points on the jacking guide rails can lead to errors in the jacking height, thus reducing subsequent fall protection performance. Furthermore, there is a lack of individual fall protection mechanisms. Moreover, building construction machines require a large number of lifting mechanisms, and when the fall protection performance of different lifting mechanisms decreases, timely warnings cannot be issued, reducing the effectiveness of the lifting equipment. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a fall-prevention circulating lifting device for building construction machines. By incorporating limiting components, the lifting guide rail can be individually locked after the lifting motion, improving its fall-prevention performance. When the limiting block in the limiting component cannot be inserted into the corresponding fall-prevention opening, the limiting block and elastic plate will retract, causing the elastic plate to activate a touch switch. This touch switch then activates the alarm, enabling inspection personnel to promptly take fall-prevention measures. Furthermore, the locking assembly allows for adaptive locking of the lifting guide rail in case of lifting errors, further enhancing its fall-prevention effect.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a fall-prevention circulating lifting device for a building construction machine, comprising several positioning mechanisms installed on the wall, a lifting guide rail disposed between the positioning mechanisms, each positioning mechanism including a U-shaped bracket, one side of the U-shaped bracket being connected to a bolt fixedly connected to the wall, one side of the U-shaped bracket being provided with a fall-prevention component for guiding and preventing fall of the lifting guide rail after lifting, the U-shaped bracket being provided with a locking component for one-way locking of the lifting guide rail, one of the positioning mechanisms being provided with a lifting component, and the lifting guide rail being provided with one row of locking ports and two rows of fall-prevention ports;

[0008] The fall protection assembly includes a bonding plate fixed to one side of the U-shaped bracket. The bonding plate has an opening inside for the locking end of the locking assembly to extend out. Both sides of the bonding plate are rotatably connected to connecting plates via rotating shafts. The inner sides of the two connecting plates are fixedly connected to guide blocks for insertion into the corners of the lifting guide rail. Both connecting plates are provided with limiting members that lock the lifting guide rail in one direction through a row of fall protection holes. The top of the bonding plate is provided with a locking member for locking the two rotated shafts.

[0009] Preferably, the lifting guide rail adopts a square tube structure with an I-shaped cross section, and a row of locking holes is opened on one side of the lifting guide rail, while two rows of anti-fall holes are symmetrically opened on the front and back of the lifting guide rail.

[0010] Preferably, the limiting member includes a protective cover fixed to the outer side of the connecting plate, an elastic plate is slidably connected inside the protective cover, two limiting blocks are fixedly connected to one side of the elastic plate, one end of each limiting block extends into the interior of the anti-fall opening at the corresponding position, and the bottom of one end of each limiting block is provided with an inclined surface, and a first spring assembly for elastically compressing the elastic plate is provided inside the protective cover.

[0011] Preferably, an alarm and a wireless transmission module are fixedly connected to the outer side of the protective cover, and a touch switch for controlling the alarm and the wireless transmission module is fixedly connected to one side of the inner wall of the protective cover.

[0012] Preferably, the locking component includes a sliding plate fixed to the top of the bonding plate, a U-shaped pin slidably connected to one side of the sliding plate, locking blocks fixedly connected to the top of the two rotating shafts, and hanging ears fixedly connected to the front and back of the U-shaped bracket. The two hanging ears and the two locking blocks are all provided with insertion holes for inserting the U-shaped pin.

[0013] Preferably, the locking assembly includes an L-shaped plate fixed to the top of the inner wall of the U-shaped bracket, a T-shaped pin for inserting into the locking port is slidably connected to the top of the inner wall of the L-shaped plate, one side of the bottom of the T-shaped pin is set as an inclined surface, and one side of the top of the T-shaped pin is set as a stepped surface, and a second spring assembly is fixedly connected between one side of the inner wall of the L-shaped plate and the T-shaped pin.

[0014] Preferably, the lifting assembly includes a guide frame fixed to the top of the U-shaped bracket, a movable frame slidably connected inside the guide frame, a T-shaped locking block provided on one side of the movable frame, and a hydraulic cylinder hinged between the bottom of the movable frame and the U-shaped bracket.

[0015] Preferably, the top of the T-shaped locking block has a notch that matches the upper inner part of the locking port, the T-shaped locking block is slidably connected to the top of the movable frame, and an elastic element is fixedly connected between the interior of the movable frame and the T-shaped locking block.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a fall-prevention circulating lifting device for building construction machines, which has the following beneficial effects:

[0018] 1. This invention utilizes two guide blocks in the anti-fall component to abut against the inner corner of the lifting guide rail, improving its guiding performance during lifting. The limiting component allows for unidirectional locking of the lifting guide rail after lifting, enhancing its anti-fall performance. When the limiting block cannot be inserted into the corresponding anti-fall opening, the limiting block and elastic plate retract, causing the elastic plate to activate a touch switch. This activates the alarm, allowing inspection personnel to promptly take anti-fall actions. The locking component provides adaptive locking to accommodate lifting errors, further enhancing its anti-fall effect.

[0019] 2. This invention utilizes the elastic force of the second spring assembly to elastically compress the T-shaped pin, allowing it to insert into the corresponding locking slot. This ensures the stability of the lifting guide rail after its lifting motion, facilitating subsequent cyclic lifting operations. The stepped surface on one side of the top of the T-shaped pin facilitates better insertion into the locking slot, locking the lifting guide rail. This solves the problem in existing lifting structures where wear at the lifting end during long-term lifting operations causes changes in lifting height, preventing the T-shaped pin from effectively inserting into the locking slot for locking. The stepped surface on one side of the top of the T-shaped pin allows for adaptive locking based on lifting height errors, further improving the anti-fall performance of the lifting guide rail.

[0020] 3. This invention uses a hydraulic cylinder to drive the moving frame up and down. The up-and-down movement of the moving frame drives the T-shaped locking block up and down, which in turn drives the lifting guide rail to lift upwards. Moreover, the guide frame improves the smoothness of the up-and-down movement of the moving frame, eliminating the need for a separate guide structure to connect to the lifting guide rail, thus improving the convenience of subsequent assembly and disassembly. The T-shaped locking block has a notch at the top that matches the upper part of the locking port, thereby improving the stability of the T-shaped locking block in lifting the lifting guide rail. This not only effectively prevents the lifting guide rail from slipping during the lifting process, but also increases the contact area, reducing the damage and deformation of the locking port during long-term lifting. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the positioning mechanism;

[0023] Figure 3 For the present invention Figure 2 A schematic diagram of the combination of the center positioning mechanism and the lifting guide rail;

[0024] Figure 4 For the present invention Figure 3 A cross-sectional schematic diagram;

[0025] Figure 5 For the present invention Figure 3 A diagram showing the combination of the fall arrestor, the lifting assembly, and the U-shaped support.

[0026] Figure 6 For the present invention Figure 5 Exploded view of the anti-fall device, lifting device, and U-shaped support;

[0027] Figure 7 For the present invention Figure 5 Schematic diagram of the lifting assembly;

[0028] Figure 8 For the present invention Figure 4 Schematic diagram of the locking assembly;

[0029] Figure 9 For the present invention Figure 6 Schematic diagram of the mid-range fall arrestor assembly;

[0030] Figure 10 For the present invention Figure 9 A cross-sectional schematic diagram of the middle limiting component.

[0031] In the diagram: 1. Wall;

[0032] 2. Lifting guide rail; 21. Locking port; 22. Anti-fall port;

[0033] 3. U-shaped bracket; 4. Bolts;

[0034] 5. Fall arrestor components; 51. Adhesive plate; 52. Connecting plate; 53. Guide block;

[0035] 54. Locking component; 541. Sliding plate; 542. U-shaped pin; 543. Locking block; 544. Hanging lug;

[0036] 55. Limiting component; 551. Protective cover; 552. Elastic plate; 553. Limiting block; 554. First spring assembly; 555. Alarm; 556. Touch switch;

[0037] 6. Locking assembly; 61. L-shaped plate; 62. T-shaped pin; 63. Second spring assembly;

[0038] 7. Lifting assembly; 71. Guide frame; 72. Moving frame; 73. T-shaped locking block; 74. Hydraulic cylinder; 75. Elastic element. Detailed Implementation

[0039] 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 some embodiments of the present invention, and not all embodiments. 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.

[0040] Example 1:

[0041] See attached document Figure 1-10 A type of anti-fall circulating lifting device for building construction machines includes several positioning mechanisms installed on a wall 1, a lifting guide rail 2 between the positioning mechanisms, a positioning mechanism including a U-shaped bracket 3, a bolt 4 fixedly connected to the wall 1 on one side of the U-shaped bracket 3, an anti-fall component 5 for guiding and preventing the lifting guide rail 2 after lifting, a locking component 6 for one-way locking of the lifting guide rail 2 inside the U-shaped bracket 3, a lifting component 7 on one of the positioning mechanisms, and a row of locking holes 21 and two rows of anti-fall holes 22 on the lifting guide rail 2;

[0042] The bolt 4 is used to connect the U-shaped bracket 3 to the wall 1, thereby forming a fixed installation of the positioning mechanism. The locking component 6 and the anti-fall component 5 in the positioning mechanism can lock the lifting guide rail 2 in one direction, which not only ensures the stability of the lifting guide rail 2, but also facilitates the continuous lifting operation of the lifting component 7 on the lifting guide rail 2.

[0043] The anti-fall component 5 includes a bonding plate 51 fixed to one side of the U-shaped bracket 3. The bonding plate 51 has an opening inside for the locking end of the locking component 6 to extend out. Both sides of the bonding plate 51 are rotatably connected to a connecting plate 52 via a rotating shaft. The inner sides of the two connecting plates 52 are fixedly connected to a guide block 53 for inserting into the corner of the lifting guide rail 2. Both connecting plates 52 are provided with a limiting member 55 for unidirectional locking of the lifting guide rail 2 through a row of anti-fall holes 22. The top of the bonding plate 51 is provided with a locking member 54 for locking the two rotated shafts.

[0044] The two guide blocks 53 in the anti-fall component 5 are used to abut against the inner corner of the lifting guide rail 2 to improve the guiding performance of the lifting guide rail 2 during lifting and lowering. The limiting member 55 can be used to lock the lifting guide rail 2 in one direction after the lifting movement to ensure the anti-fall performance of the lifting guide rail 2.

[0045] See attached document Figure 2 and Figure 4 The lifting guide rail 2 adopts a square tube structure with an I-shaped cross section, and a row of locking holes 21 is opened on one side of the lifting guide rail 2, while two rows of anti-fall holes 22 are symmetrically opened on the front and back of the lifting guide rail 2.

[0046] The locking ports 21 and the two anti-fall ports 22 are equidistantly arranged so that during the lifting movement of the lifting guide rail 2, the anti-fall components 5 and locking components 6 can be inserted into the corresponding locking ports 21 and anti-fall ports 22 to form an anti-fall treatment for the lifting guide rail 2.

[0047] See attached document Figure 9 and Figure 10 The limiting member 55 includes a protective cover 551 fixed to the outer side of the connecting plate 52. An elastic plate 552 is slidably connected inside the protective cover 551. Two limiting blocks 553 are fixedly connected to one side of the elastic plate 552. One end of each of the two limiting blocks 553 extends into the interior of the corresponding anti-fall opening 22. The bottom of one end of each of the two limiting blocks 553 is provided with an inclined surface. A first spring assembly 554 for elastically compressing the elastic plate 552 is provided inside the protective cover 551.

[0048] The elastic force of the first spring group 554 can elastically compress the elastic plate 552, causing the elastic plate 552 to drive the two limiting blocks 553 to extend, so that the two limiting blocks 553 can be inserted into the anti-fall hole 22 at the corresponding position, thereby ensuring the individual locking operation of the lifting guide rail 2 and avoiding the problem of the lifting guide rail 2 falling due to the large load.

[0049] See attached document Figure 9 and Figure 10An alarm 555 and a wireless transmission module are fixedly connected to the outer side of the protective cover 551, and a touch switch 556 for controlling the alarm 555 and the wireless transmission module is fixedly connected to one side of the inner wall of the protective cover 551.

[0050] The wireless transmission module uses a communication module in the existing technology to transmit the alarm information of the alarm 555 to the central control console, so that the staff can understand the status of the lifting guide rail 2 at different positions during the lifting movement in a timely manner.

[0051] When the limiting block 553 in the limiting member 55 cannot be inserted into the fall arrestor 22 at the corresponding position, the limiting block 553 will be in a retracted state, causing the elastic plate 552 to open the touch switch 556, and the touch switch 556 to open the alarm 555, so that the alarm 555 can sound an alarm and allow the inspection personnel to know in time to carry out fall arrest operations.

[0052] See attached document Figure 6 and Figure 9 The locking component 54 includes a sliding plate 541 fixed to the top of the bonding plate 51. A U-shaped pin 542 is slidably connected to one side of the sliding plate 541. Locking blocks 543 are fixedly connected to the top of the two rotating shafts. Hanging ears 544 are fixedly connected to the front and back of the U-shaped bracket 3. The two hanging ears 544 and the two locking blocks 543 are all provided with insertion holes for the U-shaped pin 542 to be inserted.

[0053] By manually rotating the two locking blocks 543, the connecting plate 52 can be flipped through the rotating shaft, which makes it easier to insert the guide block 53 on the connecting plate 52 into the corner inside the lifting guide rail 2, forming a guiding connection between the lifting guide rail 2 and the anti-fall component 5. This not only facilitates the lifting movement of the lifting guide rail 2, but also improves its guiding performance during the lifting movement.

[0054] By moving the U-shaped pin 542 downwards, the two ends of the bottom of the U-shaped pin 542 can be inserted into two sets of matching holes, thereby locking the locking block 543 and ensuring the stability of the anti-fall component 5 and the lifting guide rail 2.

[0055] Example 2: The difference from Example 1 is that;

[0056] See attached document Figure 4 and Figure 8 The locking assembly 6 includes an L-shaped plate 61 fixed to the top of the inner wall of the U-shaped bracket 3. A T-shaped pin 62 for inserting into the locking port 21 is slidably connected to the top of the inner wall of the L-shaped plate 61. One side of the bottom of the T-shaped pin 62 is set as an inclined surface, and one side of the top of the T-shaped pin 62 is set as a stepped surface. A second spring assembly 63 is fixedly connected between one side of the inner wall of the L-shaped plate 61 and the T-shaped pin 62.

[0057] The elastic force of the second spring group 63 can elastically compress the T-shaped pin 62, so that the T-shaped pin 62 is inserted into the locking hole 21 at the corresponding position, ensuring the stability of the lifting guide rail 2 after its lifting movement, so as to facilitate subsequent cyclic lifting work.

[0058] The bottom side of the T-shaped pin 62 is set as an inclined surface so that when the lifting guide rail 2 is lifted upward, its T-shaped pin 62 can be moved out from the inside of the locking port 21 and inserted into the inside of the locking port 21 in other positions to lock the lifting guide rail 2, which has the function of real-time locking.

[0059] By setting one side of the top of the T-pin 62 as a stepped surface, the T-pin 62 can be better inserted into the locking port 21 to lock the lifting guide rail 2. This solves the problem in the prior art where the lifting structure cannot effectively insert the T-pin 62 into the locking port 21 to form a locking operation due to wear at the lifting end of the lifting guide rail 2 during long-term lifting movement, resulting in changes in the lifting height. By setting one side of the top of the T-pin 62 as a stepped surface, it is possible to adaptively lock according to the height error of the lifting, further improving the anti-fall performance of the lifting guide rail 2.

[0060] Example 3: The difference from Example 1 is that;

[0061] See attached document Figure 7 The lifting assembly 7 includes a guide frame 71 fixed to the top of the U-shaped bracket 3, a movable frame 72 slidably connected inside the guide frame 71, a T-shaped locking block 73 on one side of the movable frame 72, and a hydraulic cylinder 74 hinged between the bottom of the movable frame 72 and the U-shaped bracket 3.

[0062] The hydraulic cylinder 74 is connected to an external power supply and control switch to drive the moving frame 72 up and down. The up and down movement of the moving frame 72 drives the T-shaped locking block 73 to move up and down. The T-shaped locking block 73 is inserted into the corresponding locking port 21. With the lifting of the T-shaped locking block 73, the lifting guide rail 2 can be lifted upward. Conversely, the downward movement of the T-shaped locking block 73 can form a retraction to facilitate subsequent cyclic lifting operations.

[0063] The top of the T-shaped locking block 73 has a notch that matches the upper inner part of the locking port 21. The T-shaped locking block 73 is slidably connected to the top of the movable frame 72. An elastic element 75 is fixedly connected between the interior of the movable frame 72 and the T-shaped locking block 73.

[0064] The T-shaped locking block 73 has a notch at its top, which matches the upper part of the locking port 21, thereby improving the stability of the T-shaped locking block 73 in lifting the lifting guide rail 2. This not only effectively prevents the lifting guide rail 2 from slipping during the lifting process, but also increases its contact area and reduces the damage and deformation of the locking port 21 during long-term lifting.

[0065] The bottom of the T-shaped locking block 73 is set as an inclined surface, which makes it easy for the T-shaped locking block 73 to be stored downwards, and the protruding end of the T-shaped locking block 73 can be moved out from the inside of the locking port 21.

[0066] It should be noted that the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fall-prevention circulating lifting device for a building construction machine, comprising a plurality of positioning mechanisms installed on a wall (1), a lifting guide rail (2) provided between the plurality of positioning mechanisms, wherein the positioning mechanism includes a U-shaped bracket (3), and one side of the U-shaped bracket (3) is connected to a bolt (4) fixedly connected to the wall (1), characterized in that: The U-shaped bracket (3) is provided with a fall protection component (5) for guiding and preventing the fall of the lifting guide rail (2) after lifting. The U-shaped bracket (3) is provided with a locking component (6) for unidirectional locking of the lifting guide rail (2). A lifting component (7) is provided on one of the positioning mechanisms. The lifting guide rail (2) is provided with a row of locking holes (21) and two rows of fall protection holes (22). The anti-fall assembly (5) includes a bonding plate (51) fixed to one side of the U-shaped bracket (3). The bonding plate (51) has an opening inside for the locking end of the locking assembly (6) to extend out. Both sides of the bonding plate (51) are rotatably connected to a connecting plate (52) via a rotating shaft. The inner sides of the two connecting plates (52) are fixedly connected to a guide block (53) for inserting into the corner of the lifting guide rail (2). Both connecting plates (52) are provided with a limiting member (55) for unidirectional locking of the lifting guide rail (2) through a row of anti-fall holes (22). The top of the bonding plate (51) is provided with a locking member (54) for locking the two rotated shafts. The limiting member (55) includes a protective cover (551) fixed to the outer side of the connecting plate (52). An elastic plate (552) is slidably connected inside the protective cover (551). Two limiting blocks (553) are fixedly connected to one side of the elastic plate (552). One end of each limiting block (553) extends into the interior of the corresponding anti-fall opening (22). An inclined surface is provided at the bottom of one end of each limiting block (553). A first spring assembly (554) for elastically compressing the elastic plate (552) is provided inside the protective cover (551). An alarm (555) and a wireless transmission module are fixedly connected to the outer side of the protective cover (551), and a touch switch (556) for controlling the alarm (555) and the wireless transmission module is fixedly connected to one side of the inner wall of the protective cover (551).

2. The anti-fall circulating lifting device for a building construction machine according to claim 1, characterized in that: The lifting guide rail (2) adopts a square tube structure with an I-shaped cross section, and a row of locking holes (21) is opened on one side of the lifting guide rail (2), and two rows of anti-fall holes (22) are symmetrically opened on the front and back of the lifting guide rail (2).

3. The anti-fall circulating lifting device for a building construction machine according to claim 1, characterized in that: The locking component (54) includes a sliding plate (541) fixed to the top of the bonding plate (51). A U-shaped pin (542) is slidably connected to one side of the sliding plate (541). Locking blocks (543) are fixedly connected to the top of the two rotating shafts. Hanging ears (544) are fixedly connected to the front and back of the U-shaped bracket (3). The two hanging ears (544) and the two locking blocks (543) are all provided with insertion holes for the U-shaped pin (542) to be inserted.

4. A fall-prevention circulating lifting device for a building construction machine according to claim 2, characterized in that: The locking assembly (6) includes an L-shaped plate (61) fixed to the top of the inner wall of the U-shaped bracket (3). The top of the inner wall of the L-shaped plate (61) is slidably connected to a T-shaped pin (62) for insertion into the locking port (21). One side of the bottom of the T-shaped pin (62) is set as an inclined surface, and one side of the top of the T-shaped pin (62) is set as a stepped surface. A second spring assembly (63) is fixedly connected between one side of the inner wall of the L-shaped plate (61) and the T-shaped pin (62).

5. A fall-prevention circulating lifting device for a building construction machine according to claim 2, characterized in that: The lifting assembly (7) includes a guide frame (71) fixed to the top of the U-shaped bracket (3), a movable frame (72) is slidably connected inside the guide frame (71), a T-shaped locking block (73) is provided on one side of the movable frame (72), and a hydraulic cylinder (74) is hinged between the bottom of the movable frame (72) and the U-shaped bracket (3).

6. A fall-prevention circulating lifting device for a building construction machine according to claim 5, characterized in that: The top of the T-shaped locking block (73) has a notch that matches the locking port (21). The T-shaped locking block (73) is slidably connected to the top of the movable frame (72). An elastic element (75) is fixedly connected between the interior of the movable frame (72) and the T-shaped locking block (73).

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