A precast column hoisting, erecting and positioning device

Abstract

This utility model relates to the field of precast column hoisting technology, specifically a precast column hoisting and positioning device, including a fixed frame, a placement frame rotatably mounted on one end of the top of the fixed frame, a placement plate slidably mounted on the placement frame, a fixing rod fixedly mounted on the placement frame below the placement plate, and a fixing block fixedly mounted on the bottom of the placement plate near the baffle, the fixing block being sleeved on the fixing rod. When the column is tilted and positioned before hoisting, the placement plate can slide as the column rises when it comes into contact with the column, avoiding direct scraping and damage between the column and the placement plate, thus ensuring the integrity of the column.

Description

Technical Field

[0001] This application relates to the field of precast column hoisting technology, specifically a precast column hoisting and positioning device. Background Technology

[0002] Precast concrete columns are key load-bearing components in prefabricated buildings. They are manufactured in factories and installed on site, and are widely used in industrial plants, high-rise buildings and bridge projects. The hoisting and erection process directly affects construction efficiency and structural safety.

[0003] In existing technologies, precast columns are usually placed horizontally on transport vehicles or stacked on construction sites. When installing precast columns vertically on the construction site, they need to be transported and positioned. The operation method is as follows: First, the horizontally placed precast columns are unloaded onto the frame. The crane's lifting device is connected to the top of the precast column. Then, the frame is lifted to make the precast column tilted (tilting can stabilize the precast column and avoid direct vertical erection, which can easily cause the precast column to tip over). After the lifting device rises and drives the precast column to gradually turn into an upright state, the crane's main boom rotates to move the precast column vertically to the lower part of the construction site for installation.

[0004] However, as the precast columns gradually transition from being placed at an angle to being erected on the frame, sliding friction can easily occur between the precast columns and the frame, leading to wear on the surfaces of the frame and the precast columns, which affects the service life of the components and the construction quality. Utility Model Content

[0005] In view of the problem that the surface of precast columns is easily worn during hoisting in the prior art, this utility model provides a precast column hoisting and positioning device.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] This utility model provides a precast column hoisting and positioning device, characterized in that it includes:

[0008] A fixed frame has a placement rack rotatably mounted on one end of its top, a baffle fixedly mounted on one end of the placement rack, a shelf slidably mounted on the placement rack, and a set of countersunk holes spaced along the length of the shelf. Rollers are embedded in the countersunk holes and are rotatably connected to the placement rack. A fixing rod is fixedly mounted on the placement rack below the shelf. A fixing block is fixedly mounted on the bottom of the shelf near the baffle. The fixing block is fitted onto the fixing rod. A spring is fitted on the end of the fixing rod away from the baffle. The two ends of the spring are connected to the fixing block and the placement rack, respectively.

[0009] It also includes a drive mechanism, which is mounted on a fixed frame.

[0010] Preferably, the driving mechanism includes a support rod, a hydraulic rod, a crossbar, a first mounting block, a second mounting block, and a connecting rod. Two sets of support rods are fixedly arranged at intervals on the fixed frame. The hydraulic rod is fixedly arranged on one set of support rods. The crossbar is located between the two sets of support rods, and both ends of the crossbar are fixedly connected to one set of support rods respectively. The first mounting block is slidably sleeved on the crossbar. The output shaft of the hydraulic rod is fixedly connected to one end of the first mounting block. The second mounting block is fixedly arranged at the bottom of the placement rack. The connecting rod is located below the shelf, and both ends of the connecting rod are rotatably connected to the first and second mounting blocks respectively. When the placement rack is rotated along one end of the fixed frame, the hydraulic cylinder rod starts, causing the first mounting block to slide along the axial direction of the crossbar. Both ends of the connecting rod rotate with the first and second mounting blocks respectively. When the first mounting block moves, it causes one end of the connecting rod to move and rotate. The other end of the connecting rod pushes the second mounting block, causing the second mounting block to drive the placement rack to rotate.

[0011] Preferably, the top of the support rod abuts against the bottom of the placement frame, and two sets of limiting rods are fixedly provided at intervals on the top of the support rod. The adjacent sides of the two sets of limiting rods abut against one side of the placement frame. The support rod provides further support to the placement frame to ensure its stability. In addition, the two sets of limiting rods on the support rod limit the horizontal movement of the placement frame to prevent horizontal swaying when the placement frame rotates upward, thus ensuring the safety of the placement frame and the column.

[0012] Preferably, the shelf is provided with a groove along its length, and the side wall of the shelf is fixedly provided with a sliding strip that matches the groove. When the shelf slides along the length of the shelf, the sliding strip on the side wall of the shelf slides along the groove. The sliding strip and the groove further limit the sliding of the shelf and ensure the stability of the shelf's sliding.

[0013] Preferably, multiple sets of insert rods are fixedly arranged at intervals on both sides of the placement frame. The multiple sets of insert rods limit the column on the placement plate to ensure that the column is in a straight position when placed on the placement plate, and to prevent the placement frame from lifting the column and the column from shaking during hoisting.

[0014] Preferably, the top of the insertion rod is inclined, which allows the rod to guide the column when it is placed on the shelf, facilitating quick placement of the column.

[0015] Preferably, the bottom of the insertion rod is provided with a slot near the placement plate, and a rotating shaft is rotatably installed in the slot. When the column is placed on the placement plate, the outer edge of the rotating shaft abuts against the surface of the column. When the placement frame rotates and positions the column, and the column is hoisted and raised, the column drives the rotating shaft to rotate during the raising process, avoiding direct scraping between the surface of the column and the side wall of the insertion rod, thus ensuring the integrity of the column.

[0016] Preferably, a rubber strip is fixedly installed on the top of the shelf near the baffle. When the column is lifted after the placement frame tilts the column to a certain angle, the column gradually changes from an inclined state to a vertical state as it rises. The bottom of the column near the baffle abuts against the rubber strip on the shelf, avoiding direct collision between the bottom of the column near the baffle and the surface of the shelf during the lifting process, thus ensuring the integrity of the column.

[0017] The advantages of adopting the above technical solution are:

[0018] This utility model includes a fixed frame with a placement rack rotatably mounted on one end of the fixed frame. A shelf is slidably mounted on the placement rack, and a fixing rod is fixedly mounted below the shelf. A fixing block is fixedly mounted on the bottom of the shelf near the baffle, and the fixing block is fitted onto the fixing rod. When the column is tilted and positioned for lifting, the shelf can slide as the column rises when it comes into contact with the column, preventing the column from scraping against the shelf and causing damage, thus ensuring the integrity of the column. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the structure of this utility model is shown;

[0021] Figure 2 A partial structural schematic diagram of this utility model is shown;

[0022] Figure 3 A partial structural schematic diagram of this utility model is shown;

[0023] Figure 4 A partial cross-sectional view of the present invention is shown;

[0024] Figure 5 A partially enlarged view of part A of this utility model is shown.

[0025] The components are as follows: 1. Fixing frame; 100. Column; 101. Support rod; 102. Limiting rod; 2. Placement rack; 201. Slide groove; 202. Insert rod; 203. Rotating shaft; 3. Baffle; 4. Storage plate; 401. Fixing block; 402. Slide bar; 403. Rubber strip; 5. Rotating roller; 6. Fixing rod; 601. Spring; 7. Hydraulic rod; 701. Crossbar; 702. Mounting block one; 703. Connecting rod. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] like Figure 1-5 As shown in the figure, this utility model embodiment discloses a precast column hoisting and positioning device, including a fixed frame 1 and a driving mechanism. A placement frame 2 is rotatably mounted on one end of the top of the fixed frame 1, and a baffle 3 is fixedly mounted on one end of the placement frame 2. A placement plate 4 is slidably mounted on the placement frame 2. The placement plate 4 has multiple sets of countersunk holes spaced along its length. A rotating roller 5 is embedded in the countersunk holes and is rotatably connected to the placement frame 2. A fixing rod 6 is fixedly mounted on the placement frame 2 below the placement plate 4. A fixing block 401 is fixedly mounted on the bottom of the placement plate 4 near the baffle 3. The fixing block 401 is sleeved on the fixing rod 6. A spring 601 is sleeved on the end of the fixing rod 6 away from the baffle 3. The two ends of the spring 601 are respectively connected to the fixing block 401 and the placement frame 2. The driving mechanism is located on the fixed frame 1.

[0028] In at least one embodiment, the driving mechanism includes a support rod 101, a hydraulic rod 7, a crossbar 701, a first mounting block 702, a second mounting block, and a connecting rod 703. Two sets of support rods 101 are fixedly mounted on the fixed frame 1 at intervals. The hydraulic rod 7 is fixedly mounted on one set of support rods 101. The crossbar 701 is located between the two sets of support rods 101, and both ends of the crossbar 701 are fixedly connected to one set of support rods 101 respectively. The first mounting block 702 is slidably sleeved on the crossbar 701. The output shaft of the hydraulic rod 7 is fixedly connected to one end of the first mounting block 702. The bottom of the placement frame 2... The unit is fixedly equipped with a second mounting block. The connecting rod 703 is located below the shelf 4 and its two ends are rotatably connected to the first mounting block 702 and the second mounting block, respectively. When the shelf 2 is rotated along one end of the fixed frame 1, the hydraulic rod 7 is activated to drive the first mounting block 702 to slide axially along the crossbar 701. The two ends of the connecting rod 703 rotate with the first mounting block 702 and the second mounting block, respectively. When the first mounting block 702 moves, it drives one end of the connecting rod 703 to move and rotate. The other end of the connecting rod 703 pushes the second mounting block, causing the second mounting block to drive the shelf 2 to rotate.

[0029] In at least one embodiment, the top of the support rod 101 abuts against the bottom of the placement rack 2. Two sets of limiting rods 102 are fixedly provided at intervals on the top of the support rod 101. The adjacent sides of the two sets of limiting rods 102 abut against one side of the placement rack 2. The support rod 101 provides further support for the placement rack 2 to ensure the stability of the placement rack 2. In addition, the two sets of limiting rods 102 on the support rod 101 limit the placement rack 2 in the horizontal direction to prevent horizontal swaying when the placement rack 2 rotates upward, thus ensuring the safety of the placement rack 2 and the column 100.

[0030] In at least one embodiment, the shelf 2 is provided with a groove 201 along its length, and the side wall of the shelf 4 is fixedly provided with a slide bar 402 that matches the groove 201. When the shelf 4 slides along the length of the shelf 2, the slide bar 402 on the side wall of the shelf 4 slides along the groove 201. The slide bar 402 and the groove 201 further limit the sliding of the shelf 4 to ensure the stability of the sliding of the shelf 4.

[0031] In at least one embodiment, multiple sets of insert rods 202 are fixedly arranged at intervals on both sides of the placement rack 2. The multiple sets of insert rods 202 limit the column 100 on the shelf 4 to ensure that the column 100 is in a straight state when placed on the shelf 4, and to prevent the placement rack 2 from lifting the column 100 and the column 100 from shaking when hoisting it.

[0032] In at least one embodiment, the top end of the insertion rod 202 is inclined, and the inclined insertion rod 202 can guide the column 100 when it is placed on the shelf 4, so as to facilitate the quick placement of the column 100.

[0033] In at least one embodiment, the bottom of the insertion rod 202 is provided with a slot near the side of the shelf 4, and a rotating shaft 203 is rotatably disposed in the slot. When the column 100 is placed on the shelf 4, the outer edge of the rotating shaft 203 abuts against the surface of the column 100. When the placement frame 2 rotates and positions the column 100, the column 100 drives the rotating shaft 203 to rotate during the lifting process, so as to avoid the surface of the column 100 directly scraping against the side wall of the insertion rod 202 and ensure the integrity of the column 100.

[0034] In at least one embodiment, a rubber strip 403 is fixedly provided on the top of the shelf 4 near the baffle 3. When the column 100 is lifted after the placement frame 2 tilts the column 100 to a certain angle, the column 100 gradually changes from an inclined state to a vertical state as it rises. The bottom of the end of the column 100 near the baffle 3 abuts against the rubber strip 403 on the shelf 4, so as to avoid direct collision between the bottom of the end of the column 100 near the baffle 3 and the surface of the shelf 4 during the lifting process, thus ensuring the integrity of the column 100.

[0035] When erecting and hoisting precast concrete columns, the column 100, which is placed horizontally on a transport vehicle or stacked on the construction site, is first placed on the platform 4 of a horizontally placed placement frame 2 using a hoisting device. A baffle 3 at one end of the placement frame 2 abuts against one end of the column 100, limiting its position. Multiple sets of countersunk holes on the platform 4 contain rotating rollers 5, the outer edges of which are higher than the top surface of the platform 4. This ensures that when the column 100 is placed on the platform 4, the rotating rollers 5 provide abutment and support, preventing the surface of the column 100 from directly contacting the surface of the platform 4. The surfaces make complete contact to ensure the integrity of the column 100. After the column 100 is placed on the shelf 4, the operator can push the column 100 to slide using the rotating roller 5, so that the column 100 abuts against the baffle 3. This prevents the column 100 from sliding down the shelf 4 and colliding with the baffle 3 when it is subsequently lifted. Then, the drive mechanism drives the placement frame 2 to rotate along one end of the fixed frame 1, which in turn drives the shelf 4 to rotate and stand the column 100. During the standing process, the baffle 3 abuts against the bottom of the column 100. To ensure the stability of the column 100, the rotation of the placement frame 2 stops after it reaches a suitable angle. At this point, the column 100 can be vertically hoisted. During the process of fixing the top of the column 100 and lifting it away from the placement frame 2 using hoisting equipment, as the column 100 is hoisted from an inclined state to a completely vertical state, the top of the column 100 first disengages from the shelf 4. At this time, the bottom of the column 100 remains in contact with the shelf 4. During the ascent of the column 100, the contact end between the column 100 and the shelf 4 will cause the shelf 4 to move along the placement frame 2. The sliding mechanism prevents friction between the surface of the shelf 4 and the column 100, thus avoiding damage to the surface of the column 100 and ensuring the integrity of the column 100 and the equipment. When the shelf 4 slides as the column 100 rises, the fixing block 401 at the bottom of the shelf 4 slides along the fixing rod 6 and compresses the spring 601. After the shelf 4 and the rotating roller 5 disengage from the column 100, the fixing block 401, under the compression of the spring 601, drives the shelf 4 to return to its original position, facilitating continuous lifting and positioning of the column 100 and making the operation convenient.

[0036] In addition, a rubber pad is fixedly installed on the side of the shelf 4 near the baffle 3. After the column 100 is lifted and detached from the shelf 4, the shelf 4 slides back to its original position under the push of the spring 601. The rubber pad prevents the shelf 4 from colliding directly with the baffle 3, ensuring the safety of the shelf 4 and the baffle 3.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A precast column hoisting and erecting positioning device, characterized in that: include A fixed frame has a placement rack rotatably mounted on one end of its top, a baffle fixedly mounted on one end of the placement rack, a shelf slidably mounted on the placement rack, and a set of countersunk holes spaced along the length of the shelf. Rollers are embedded in the countersunk holes and are rotatably connected to the placement rack. A fixing rod is fixedly mounted on the placement rack below the shelf. A fixing block is fixedly mounted on the bottom of the shelf near the baffle. The fixing block is fitted onto the fixing rod. A spring is fitted on the end of the fixing rod away from the baffle. The two ends of the spring are connected to the fixing block and the placement rack, respectively. It also includes a drive mechanism, which is mounted on a fixed frame.

2. A precast column lifting and erecting positioning device according to claim 1, wherein: The driving mechanism includes a support rod, a hydraulic rod, a crossbar, a mounting block one, a mounting block two, and a connecting rod. There are two sets of support rods, which are fixedly installed on the fixed frame at intervals. The hydraulic rod is fixedly installed on one set of support rods. The crossbar is located between the two sets of support rods, and both ends of the crossbar are fixedly connected to one set of support rods respectively. Mounting block one is slidably sleeved on the crossbar. The output shaft of the hydraulic rod is fixedly connected to one end of mounting block one. Mounting block two is fixedly installed at the bottom of the placement rack. The connecting rod is located below the placement plate, and both ends of the connecting rod are rotatably connected to mounting block one and mounting block two respectively.

3. A precast column lifting and erecting positioning device according to claim 2, wherein: The top of the support rod abuts against the bottom of the placement frame, and two sets of limiting rods are fixedly installed at intervals on the top of the support rod. The adjacent sides of the two sets of limiting rods abut against one side of the placement frame.

4. A precast column hoisting and erecting positioning device according to claim 1, characterized in that: The placement rack is provided with a sliding groove along its length, and the side wall of the placement plate is fixedly provided with a sliding strip that matches the sliding groove.

5. A precast column hoisting and erecting positioning device according to claim 1, characterized in that: Multiple sets of insert rods are fixedly installed at intervals on both sides of the placement rack.

6. A precast column lifting and erecting positioning device as claimed in claim 5 wherein: The top of the insertion rod is inclined.

7. A precast column lifting and erecting positioning device as defined in claim 6 wherein: The bottom of the insertion rod is provided with a slot on the side near the shelf, and a rotating shaft is rotatably installed in the slot.

8. A precast column hoisting and erecting positioning device according to claim 1, characterized in that: A rubber strip is fixedly installed on the top of the shelf near the baffle.

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