A lifting operation platform applied to chimney turnover form construction

Abstract

The application relates to the technical field of building construction, in particular to a lifting operation platform applied to chimney turnover formwork construction, which is arranged on a chimney body and comprises a steel platform, supporting rods, a climbing structure and a hanger. The supporting rods are arranged on the chimney body in a ring shape at intervals, the climbing structure comprises through jacks and a hydraulic control console, the through jacks are fixedly arranged on the steel platform, the number of the through jacks is consistent with that of the supporting rods, the supporting rods are arranged through the through jacks, the hydraulic control console is arranged on the steel platform, the hydraulic control console is used for adjusting the operation of the through jacks, the through jacks are made to climb upwards along the supporting rods, the hanger is arranged at the bottom of the steel platform, and the hanger is used for mounting and dismounting the formwork of the chimney body. In the application, the hydraulic control console drives the through jacks to climb upwards, the lifting operation platform climbs layer by layer, the purpose of layer-by-layer upward movement of the formwork is achieved, the construction steps are simplified, and the construction efficiency of the chimney body is improved.

Description

Technical Field

[0001] This application relates to the field of building construction technology, and in particular to a lifting operation platform used in chimney formwork construction. Background Technology

[0002] In the construction of tall structures such as bridge piers and chimneys, the formwork turning process can be used. The formwork turning process is a construction method that uses formwork to be cyclically rotated and concrete is poured layer by layer. For the specific construction steps of the formwork turning process, please refer to Chinese invention patent with patent number CN201711084374.6.

[0003] The core principle of the formwork flipping process is: using the hardened concrete structure to support and fix the upper formwork, pouring concrete using the upper formwork, and then moving the formwork upward after the concrete structure in the upper formwork has hardened; repeating the above steps to achieve the vertical upward extension of the structure.

[0004] In the formwork construction process, lifting equipment such as truck cranes are often used to lift the formwork layer by layer upwards; or the construction method of Chinese invention patent with patent number CN201711084374.6 is used to set up an external frame on the outside of the hardened building and move the external frame and formwork layer by layer upwards.

[0005] In the existing formwork technology, the construction steps of raising the formwork layer by layer are cumbersome, which affects the construction efficiency of the structure. Utility Model Content

[0006] To facilitate the layer-by-layer lifting of the formwork and improve the construction efficiency of the chimney body, this application provides a lifting operation platform for chimney formwork construction.

[0007] This application provides a lifting operation platform for chimney formwork construction, which adopts the following technical solution:

[0008] A lifting operation platform for chimney formwork construction is disclosed. The platform is mounted on the chimney body and includes a steel platform, support rods, a climbing structure, and a hanger. The support rods are arranged in a ring at intervals on the chimney body and are welded and fixed to the longitudinal reinforcing bars of the chimney body. The climbing structure includes through-hole jacks and a hydraulic control console. The through-hole jacks are fixed to the steel platform, and the number of through-hole jacks matches the number of support rods. The support rods pass through the through-hole jacks. The hydraulic control console is mounted on the steel platform and is used to adjust the operation of the through-hole jacks, allowing them to climb upwards along the support rods. The hanger is located at the bottom of the steel platform and is used for installing and dismantling the formwork of the chimney body.

[0009] By adopting the above technical solution, the support rod is welded and fixed to the longitudinal steel bars in the chimney body, and the support rod is also embedded in the concrete structure of the chimney body, so that the support rod has good vertical stability.

[0010] The hydraulic control console precisely controls the lifting, stopping, and lowering of the through-hole jacks by transmitting the pressure of hydraulic oil, thereby enabling the through-hole jacks to climb upwards along the support rods. When several through-hole jacks climb upwards along the support rods, the through-hole jacks will drive the steel platform and hanger to move upwards, thereby driving the formwork on the hanger to climb upwards, so as to pour the upper layer of concrete for the chimney body.

[0011] In this technical solution, a hydraulic control console is used to drive the through-hole jack to climb upwards, so that the lifting operation platform can climb layer by layer, thereby achieving the purpose of moving the template layer by layer; at the same time, it simplifies the construction steps and improves the construction efficiency of the chimney body.

[0012] Optionally, it also includes a vertical transport system, which is set on the steel platform; the vertical transport system includes a derrick, a first winch and a first cage, the derrick is set on the steel platform, the vertical projection of the derrick is located inside the flue of the chimney body, the first winch is set on the derrick, the first cage is set in the flue of the chimney body, and the first winch drives the first cage to move vertically.

[0013] By adopting the above technical solution, the first hoist drives the first cage to move vertically, thereby realizing the vertical transportation of materials.

[0014] Optionally, the vertical transportation system further includes several diagonal braces, one end of which is fixedly connected to the steel platform, and the other end of which is fixedly connected to the derrick.

[0015] By adopting the above technical solution and installing diagonal bracing between the steel platform and the derrick, the stability of the derrick is improved.

[0016] Optionally, the vertical transport system further includes a second winch, a diagonal lever, and a second cage; the diagonal lever is fixed to the steel platform, and the end of the diagonal lever extends to the outside of the chimney body; the second winch is fixed to the steel platform, and the traction rope of the second winch is wound around the end of the diagonal lever and connected to the second cage; the second winch is used to drive the second cage to move vertically.

[0017] By adopting the above technical solution, the second hoist drives the second cage to move vertically, thereby realizing the vertical transportation of materials.

[0018] Optionally, it also includes a guide limiting structure, which is disposed at the bottom of the hanger, and multiple guide limiting structures are provided around the chimney body, with multiple guide limiting structures clamping the chimney body, and the guide limiting structure being tumbledly connected to the chimney body.

[0019] By adopting the above technical solution, multiple guide and limiting structures are set around the outer periphery of the chimney body to improve the connection stability between the lifting operation platform and the chimney body; thus, when the steel platform and hanger climb upward, the stability of the movement of the steel platform and hanger can be improved.

[0020] Optionally, the guide limiting structure includes a mounting base, a limiting rod, a limiting ring, a limiting spring, a guide wheel, and a fixing member; the mounting base is disposed on the hanger, and the mounting base has a mounting hole for the limiting rod to pass through. The limiting rod is horizontally disposed and slidably connected to the mounting base. The guide wheel is disposed on the end of the limiting rod and is used to abut against the chimney body. The fixing member is disposed on the limiting rod and is located on the side of the mounting base away from the chimney body. The limiting ring is disposed on the limiting rod and is located on the side of the mounting base close to the chimney body. The limiting spring is sleeved on the outer periphery of the limiting rod and is located between the mounting base and the limiting ring. The limiting spring forces the guide wheel to abut against the chimney body.

[0021] By adopting the above technical solution, a limiting spring is set between the mounting base and the limiting ring, which forces the guide wheel to abut against the chimney body, thereby improving the limiting effect of the lifting operation platform on the chimney body.

[0022] Optionally, a safety net may also be included, one end of which is fixed to the steel platform, and the safety net is used to cover the outer periphery of the hanger and the ground.

[0023] By adopting the above technical solution and installing safety nets around the outer perimeter of the hanger, construction safety can be improved.

[0024] Optionally, the steel platform is provided with a platform railing around its outer perimeter, and the platform railing is provided with an encrypted security net.

[0025] By adopting the above technical solution and installing encrypted safety nets on the platform railings, construction safety can be improved.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. Using a hydraulic control console to drive the through-hole jacks to climb upwards allows the lifting platform to climb layer by layer, achieving the purpose of moving the formwork layer by layer; at the same time, it simplifies the construction steps and improves the construction efficiency of the chimney body.

[0028] 2. By setting multiple guide and limiting structures around the outer periphery of the chimney body, the connection stability between the lifting operation platform and the chimney body is improved; thus, when the steel platform and hanger climb upward, the stability of the movement of the steel platform and hanger can be improved.

[0029] 3. By setting a limiting spring between the mounting base and the limiting ring, the limiting spring forces the guide wheel to abut against the chimney body, thereby improving the limiting effect of the lifting operation platform on the chimney body. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the lifting operation platform in Embodiment 1.

[0031] Figure 2 This is a schematic diagram of the lifting operation platform in Embodiment 2.

[0032] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0033] Explanation of reference numerals in the attached drawings: 1. Chimney body; 2. Steel platform; 21. Platform railing; 22. Encrypted safety net; 3. Support rod; 4. Climbing structure; 41. Through-hole jack; 42. Hydraulic control console; 5. Hanger; 51. Safety net bag; 6. Vertical transportation system; 61. Derrick; 62. Diagonal brace; 63. First winch; 64. First cage; 65. Second winch; 66. Diagonal bar; 67. Second cage; 7. Guide and limiting structure; 71. Mounting base; 72. Limiting rod; 73. Limiting ring; 74. Limiting spring; 75. Guide wheel; 76. Fixing component. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 -3 provides further detailed description of this application.

[0035] This application discloses a lifting operation platform used in chimney formwork construction. (Refer to...) Figure 1 The lifting operation platform is set on the chimney body 1 and is used for chimney formwork construction. The lifting operation platform includes a steel platform 2, support rods 3, climbing structure 4 and hanger 5.

[0036] Reference Figure 1 The steel platform 2 is horizontally positioned and is mounted on the chimney body 1 via support rods 3. A platform railing 21 is installed around the outer perimeter of the steel platform 2, and a reinforced safety net 22 is installed around the outer perimeter of the platform railing 21 to improve construction safety.

[0037] Reference Figure 1 Support rods 3 are arranged in a ring at intervals on the chimney body 1, and are welded and fixed to the longitudinal steel bars of the chimney body 1 to improve the vertical stability of the support rods 3. The bottom of the support rods 3 is embedded in the concrete of the chimney body 1. In this embodiment, twenty-eight support rods 3 are arranged in a ring at intervals; however, for the sake of simplicity in the accompanying drawings, only two support rods 3 are shown.

[0038] Reference Figure 1 The climbing structure 4 includes through-hole jacks 41 and a hydraulic control console 42. The through-hole jacks 41 are fixed on the steel platform 2, and the number of through-hole jacks 41 matches the number of support rods 3. The support rods 3 pass through the through-hole jacks 41. The hydraulic control console 42 is set on the steel platform 2 and is used to adjust the operation of the through-hole jacks 41, so that the through-hole jacks climb upward along the support rods 3. Correspondingly, in this embodiment, twenty-eight through-hole jacks 41 are provided, and the through-hole jacks 41 are installed on the support rods 3; in addition, two spare through-hole jacks 41 are also available on site.

[0039] Reference Figure 1 The hanger 5 is located at the bottom of the steel platform 2 and on both the inner and outer sides of the chimney body 1. The hanger 5 is used for installing and dismantling the formwork of the chimney body 1. In existing technologies, there are many ways to install and dismantle formwork using a formwork-changing process; this embodiment will not elaborate on the installation and dismantling steps. The lifting platform also includes a safety net 51, one end of which is fixed to the steel platform 2. The safety net 51 is used to cover the outer perimeter of the hanger 5 and the ground to improve construction safety.

[0040] Reference Figure 1 The lifting operation platform also includes a vertical transport system 6, which is mounted on the steel platform 2. The vertical transport system 6 includes a derrick 61, diagonal braces 62, a first winch 63, and a first hoist cage 64. The derrick 61 is mounted on the steel platform 2, and its vertical projection is located inside the flue of the chimney body 1. One end of the diagonal brace 62 is fixedly connected to the steel platform 2, and the other end is fixedly connected to the derrick 61, thus improving the stability of the derrick 61. The first winch 63 lifts the first hoist cage 64 via the derrick 61. The first hoist cage 64 is located in the flue of the chimney body 1, and the first winch 63 drives the first hoist cage 64 to move vertically, thereby achieving vertical transport of materials.

[0041] Reference Figure 1In addition, the vertical transport system 6 also includes a second winch 65, a diagonal bar 66, and a second cage 67; the diagonal bar 66 is fixed on the steel platform 2, and the end of the diagonal bar 66 extends to the outside of the chimney body 1; the second winch 65 is fixed on the steel platform 2, and the traction rope of the second winch 65 is wound around the end of the diagonal bar 66 and connected to the second cage 67; the second winch 65 is used to drive the second cage 67 to move vertically, so as to realize the vertical transport of materials.

[0042] In this embodiment, when the first winch 63 and the second winch 65 are working, an electric bell is installed on the steel platform 2 and the ground respectively, so as to facilitate the transportation of goods by the first winch 63 and the second winch 65.

[0043] The implementation principle of a lifting operation platform applied to chimney formwork construction according to an embodiment of this application is as follows:

[0044] Reference Figure 1 The support rod 3 is welded and fixed to the longitudinal steel bars in the chimney body 1, and the support rod 3 is also embedded in the concrete structure of the chimney body 1, so that the support rod 3 has good vertical stability.

[0045] Reference Figure 1 The hydraulic control console 42 precisely controls the lifting, stopping, and lowering of the through-hole jack 41 by transmitting the pressure of hydraulic oil, thereby enabling the through-hole jack 41 to climb upward along the support rod 3. When several through-hole jacks 41 climb upward along the support rod 3, the through-hole jacks 41 will drive the steel platform 2 and the hanger 5 to move upward, thereby driving the formwork on the hanger 5 to climb upward, so as to pour the upper layer of concrete of the chimney body 1.

[0046] As the formwork is lifted upwards by the gantry 5, the longitudinal reinforcing bars of the support rod 3 and the chimney body 1 need to be extended. Furthermore, when tying the transverse reinforcing bars of the chimney body 1, the transverse reinforcing bars of the chimney body 1 can be tied or welded to the support rod 3.

[0047] In summary, this technical solution utilizes a hydraulic control console 42 to drive the through-hole jack 41 to climb upwards, enabling the lifting operation platform to climb layer by layer and achieving the purpose of moving the template layer by layer. It also simplifies the construction steps and improves the construction efficiency of the chimney body 1.

[0048] The specific workflow for upgrading the operating platform is as follows:

[0049] Step 1: Build a temporary installation platform, tie 2.5-meter-high longitudinal steel bars, set up formwork and correct and reinforce it, and pour the first layer of concrete for the chimney body 1.

[0050] Step 2: Construct a steel platform 2 using a temporary installation platform.

[0051] Step 3: Install the jack and support rod 3. The bottom of the support rod 3 is supported on the poured concrete, and the support rod 3 is welded and fixed to the longitudinal steel bars.

[0052] Step 4: While raising the operating platform, simultaneously raise the steel platform 2 and tie the reinforcing bars of the chimney body 1; when the formwork is lowered to the designed height, level the steel platform 2.

[0053] Step 5: Close the formwork of the chimney body 1 to pour concrete.

[0054] Repeat steps four and five continuously until the construction of the chimney body 1 is completed.

[0055] Example 2

[0056] The difference between Example 2 and Example 1 is as follows:

[0057] Reference Figure 2 and Figure 3 The lifting operation platform also includes guide and limiting structures 7, which are located at the bottom of the hanger 5. Multiple guide and limiting structures 7 surround the chimney body 1, and these structures clamp the chimney body 1, forming a rolling connection. In this embodiment, for the sake of simplicity in the accompanying drawings, only two sets of guide and limiting structures 7 are shown.

[0058] Reference Figure 2 and Figure 3 The guide limiting structure 7 includes a mounting base 71, a limiting rod 72, a limiting ring 73, a limiting spring 74, a guide wheel 75, and a fixing member 76. The mounting base 71 is mounted on the hanger 5. The mounting base 71 has a mounting hole for the limiting rod 72 to pass through. The limiting rod 72 is horizontally positioned and slidably connected to the mounting base 71. The guide wheel 75 is located at the end of the limiting rod 72 and is used to abut against the chimney body 1. The fixing member 76 is located on the limiting rod 72 and is located on the side of the mounting base 71 away from the chimney body 1. The limiting ring 73 is located on the limiting rod 72 and is located on the side of the mounting base 71 close to the chimney body 1. The limiting spring 74 is sleeved on the outer periphery of the limiting rod 72 and is located between the mounting base 71 and the limiting ring 73. The limiting spring 74 forces the guide wheel 75 to abut against the chimney body 1.

[0059] The implementation principle of a lifting operation platform applied to chimney formwork construction according to an embodiment of this application is as follows:

[0060] Reference Figure 2 and Figure 3By setting multiple guide and limiting structures 7 in a ring around the outer periphery of the chimney body 1, the connection stability between the lifting operation platform and the chimney body 1 is improved; thus, when the steel platform 2 and the hanger 5 climb upward, the stability of the movement of the steel platform 2 and the hanger 5 can be improved.

[0061] By setting a limiting spring 74 between the mounting base 71 and the limiting ring 73, the limiting spring 74 forces the guide wheel 75 to abut against the chimney body 1, thereby improving the limiting effect of the lifting operation platform on the chimney body 1.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lifting operation platform used in chimney formwork construction, characterized in that: The lifting operation platform is set on the chimney body (1). The lifting operation platform includes a steel platform (2), support rods (3), a climbing structure (4), and a hanger (5). The support rods (3) are arranged in a ring at intervals on the chimney body (1), and the support rods (3) are welded and fixed to the longitudinal steel bars of the chimney body (1). The climbing structure (4) includes a through-hole jack (41) and a hydraulic control console (42). The through-hole jack (41) is fixed on the steel platform (2), and the through-hole jack... The number of tops (41) is consistent with the number of support rods (3). The support rods (3) are inserted through the core jacks (41). The hydraulic control console (42) is set on the steel platform (2). The hydraulic control console (42) is used to adjust the operation of the core jacks (41) so that the core jacks can climb up along the support rods (3). The hanger (5) is set at the bottom of the steel platform (2). The hanger (5) is used to install and dismantle the template of the chimney body (1).

2. The lifting operation platform for chimney formwork construction according to claim 1, characterized in that: It also includes a vertical transport system (6), which is set on the steel platform (2); the vertical transport system (6) includes a derrick (61), a first winch (63) and a first cage (64), the derrick (61) is set on the steel platform (2), the vertical projection of the derrick (61) is located inside the flue of the chimney body (1), the first winch (63) is set on the derrick (61), and the first cage (64) is set in the flue of the chimney body (1), the first winch (63) drives the first cage (64) to move vertically.

3. The lifting operation platform for chimney formwork construction according to claim 2, characterized in that: The vertical transport system (6) also includes several diagonal braces (62), one end of which is fixedly connected to the steel platform (2), and the other end of which is fixedly connected to the derrick (61).

4. The lifting operation platform for chimney formwork construction according to claim 2, characterized in that: The vertical transport system (6) also includes a second winch (65), a diagonal bar (66), and a second cage (67); the diagonal bar (66) is fixed on the steel platform (2), and the end of the diagonal bar (66) extends to the outside of the chimney body (1); the second winch (65) is fixed on the steel platform (2), and the traction rope of the second winch (65) is wound around the end of the diagonal bar (66) and connected to the second cage (67); the second winch (65) is used to drive the second cage (67) to move vertically.

5. The lifting operation platform for chimney formwork construction according to claim 1, characterized in that: It also includes a guide limiting structure (7), which is located at the bottom of the hanger (5), and multiple guide limiting structures (7) are provided around the chimney body (1). Multiple guide limiting structures (7) hug the chimney body (1), and the guide limiting structure (7) is tumblingly connected to the chimney body (1).

6. The lifting operation platform for chimney formwork construction according to claim 5, characterized in that: The guide limiting structure (7) includes a mounting base (71), a limiting rod (72), a limiting ring (73), a limiting spring (74), a guide wheel (75), and a fixing member (76); the mounting base (71) is mounted on the hanger (5), the mounting base (71) has a mounting hole for the limiting rod (72) to pass through, the limiting rod (72) is horizontally positioned, the limiting rod (72) is slidably connected to the mounting base (71), the guide wheel (75) is located at the end of the limiting rod (72), the guide wheel (75) is used to abut against the chimney body (1), and the fixing member (76) 76) The fixing member (76) is set on the limiting rod (72) and the fixing member (76) is set on the side of the mounting base (71) away from the chimney body (1). The limiting ring (73) is set on the limiting rod (72) and the limiting ring (73) is set on the side of the mounting base (71) close to the chimney body (1). The limiting spring (74) is sleeved on the outer periphery of the limiting rod (72) and the limiting spring (74) is set between the mounting base (71) and the limiting ring (73). The limiting spring (74) forces the guide wheel (75) to abut against the chimney body (1).

7. The lifting operation platform for chimney formwork construction according to claim 1, characterized in that: It also includes a safety net (51), one end of which is fixed to the steel platform (2), and the safety net (51) is used to cover the outer periphery of the hanger (5) and the ground.

8. The lifting operation platform for chimney formwork construction according to claim 1, characterized in that: The steel platform (2) is provided with a platform railing (21) on its outer perimeter, and the platform railing (21) is provided with an encrypted security net (22).

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