A hydraulic concrete placer operation platform inside an elevator shaft

Abstract

The present invention discloses a hydraulic concrete placer operating platform in an elevator shaft, belonging to the technical field of building construction, including: a support framework, on which a cover plate is installed, and at the bottom end of the support framework, a bottom rod passing through a reserved hole for the concrete placer is installed. The support framework is formed by splicing at least 8 prefabricated rods. The prefabricated rod includes: a bottom plate and two sliding rods slidably installed on the bottom plate. In the middle of the bottom plate, a connecting block is provided. The two sliding rods are symmetrically arranged with respect to the connecting block. On the connecting block, a bidirectional screw rod is rotatably installed with a limit. The opposite threads on the bidirectional screw rod are respectively threadedly connected to the sliding rods on both sides of the connecting block. An empty groove is provided on the sliding rod, and a connecting groove is provided at the end of the sliding rod away from the connecting block. The depths of both the empty groove and the connecting groove are half of the depth of the prefabricated rod. By adjusting the length of the prefabricated rod, the dimensions of the elevator shaft and the concrete placer can be adapted, improving the applicability of the support framework.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and particularly relates to a hydraulic concrete placer operating platform in an elevator shaft. Background Art

[0002] With the progress of urbanization and the rapid development of industry, the building height of high-rise buildings shows an increasing trend. The application of in-situ climbing elevator shaft concrete placers has been very extensive. At the same time, the safety protection in the elevator shaft of the concrete placer and the construction around the concrete placer have increased the difficulty, and appropriate operating platforms are required for construction processes such as formwork erection, reinforcement, and plastering in the elevator shaft.

[0003] In the prior art, a Chinese patent with the publication number CN 214117546 U discloses an integrated device for operating and protecting an elevator shaft concrete placer, which requires prefabricating corresponding long steel platforms and short steel platforms as supports according to the dimensions of the elevator shaft and the concrete placer. Another Chinese patent with the publication number CN 218205611 U discloses a protective platform for a tower crane concrete placer in an elevator shaft, which also requires prefabricating a corresponding horizontal support structure according to the dimensions of the elevator shaft and the concrete placer. When prefabricating the support structure in the above prior art, the size of the support structure cannot be adjusted, and it is necessary to cut or weld the support steel plate according to the dimensions of the elevator shaft and the concrete placer and then perform bolt fixation, which consumes manpower and construction period.

[0004] Therefore, it is necessary to propose a hydraulic concrete placer operating platform in an elevator shaft to solve the above problems. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a hydraulic concrete placer operating platform in an elevator shaft to solve the problem that the support structure of the operating platform in the prior art cannot adjust the size.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] The present invention provides a hydraulic placing boom operation platform in an elevator hoistway, comprising: a support framework, on which a cover plate is installed, and at the bottom end of the support framework, a bottom rod passing through a reserved hole for the placing boom is installed. The support framework is formed by splicing at least 8 prefabricated rods, among which at least 4 prefabricated rods are arranged horizontally and at least 4 prefabricated rods are arranged vertically so that the formed support framework is in a square shape with a hollow center. The outer circle of the support framework fits with the elevator hoistway, and the placing boom is installed inside the inner circle of the support framework. The prefabricated rod includes: a bottom plate and two sliding rods slidably installed on the bottom plate. In the middle of the bottom plate, there is a connecting block, and the two sliding rods are symmetrically arranged with respect to the connecting block. On the connecting block, a bidirectional screw rod is rotatably installed with a limit, and the opposite threads on the bidirectional screw rod are respectively threadedly connected with the sliding rods on both sides of the connecting block. An empty groove is provided on the sliding rod, and a connecting groove is provided at the end of the sliding rod far from the connecting block. The depths of both the empty groove and the connecting groove are half of the depth of the prefabricated rod.

[0008] Further, the length of the connecting groove is equal to the width of the prefabricated rod, and the length of the empty groove is greater than twice the width of the prefabricated rod.

[0009] Further, a sliding groove is provided on the side of the sliding rod far from the empty groove, the bottom plate is slidably installed in the sliding groove, a limiting groove is provided on one of the bottom plate and the sliding rod, and a limiting rod is provided on the other of the bottom plate and the sliding rod. The limiting rod is slidably connected in the limiting groove with a limit.

[0010] Further, a plurality of sets of countersunk holes are provided on the prefabricated rod along the extending direction of the prefabricated rod. Each set of countersunk holes includes two countersunk holes provided on the opposite side walls of the prefabricated rod. The two countersunk holes are symmetrically arranged and communicated. Adjacent prefabricated rods are fixedly connected by screwing a first bolt into the countersunk holes. A connecting hole coaxial with the countersunk hole is provided on the prefabricated rod, and the cover plate is fixedly connected to the connecting hole by screwing a second bolt.

[0011] Further, the depth of the sliding groove is the same as the thickness of the bottom plate.

[0012] Further, the cover plate includes: a plurality of support plates arranged side by side, and the support plates are connected by telescopic frames between every two of them. Mounting holes corresponding one by one to the connecting holes are provided on the support plates. The mounting holes on the cover plate and the connecting holes on the prefabricated rod are connected by second bolts to fix the cover plate to the prefabricated rod.

[0013] The beneficial effects of the present invention are as follows:

[0014] By adjusting the length of the prefabricated rod, the present invention can adapt to the size of the elevator hoistway. By providing the empty groove, the size of the inner circle of the support framework can be adjusted to adapt to the size of the placing boom, without further processing operations such as truncating and shortening or welding and extending the support framework, thereby improving the applicability of the support framework.

[0015] Other advantages, objects and features of the present invention will be set forth in the following description, and to some extent will be obvious to those skilled in the art, or can be taught to those skilled in the art from the practice of the present invention. The objects and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the objectives, technical solutions and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0017] Figure 1 Schematic diagram of the installation of the support skeleton for the embodiment of the present invention;

[0018] Figure 2 Schematic diagram of the installation of the cover plate for the embodiment of the present invention;

[0019] Figure 3 Schematic diagram of the structure of the support skeleton for the embodiment of the present invention;

[0020] Figure 4 Schematic diagram of the structure of the prefabricated rod for the embodiment of the present invention;

[0021] Figure 5 Schematic diagram of the structure of the sliding rod for the embodiment of the present invention;

[0022] Figure 6 Schematic diagram of the structure of the bottom plate for the embodiment of the present invention;

[0023] Figure 7 Schematic diagram of the structure of the cover plate for the embodiment of the present invention;

[0024] Figure 8 Schematic diagram of the connection between the counterbore and the connection hole for the embodiment of the present invention.

[0025] The reference signs in the drawings are as follows: support skeleton 1, cover plate 2, support plate 201, telescopic frame 202, mounting hole 203, bottom rod 3, prefabricated rod 4, bottom plate 401, sliding rod 402, connection block 403, bidirectional screw 404, empty slot 405, connection slot 406, sliding slot 407, limiting slot 408, limiting rod 409, counterbore 410, connection hole 411, elevator shaft 5, concrete placer 6. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] As Figures 1 - 8As shown in the figure, the present invention provides a hydraulic concrete placer operation platform in an elevator shaft, including: a support framework 1 and a cover plate 2 installed on the support framework 1. A bottom rod 3 penetrating through the reserved hole of the concrete placer is installed at the bottom end of the support framework 1. The support framework 1 is composed of a plurality of prefabricated rods 4 spliced together. The prefabricated rod 4 includes: a bottom plate 401 and two sliding rods 402 slidably installed on the bottom plate 401. A connecting block 403 is provided in the middle of the bottom plate 401. The two sliding rods 402 are symmetrically arranged with respect to the connecting block 403. A bidirectional screw rod 404 is rotatably installed on the connecting block 403 in a limited manner. The opposite threads on the bidirectional screw rod 404 are respectively threadedly connected to the sliding rods 403 on both sides of the connecting block 403. Rotating the bidirectional screw rod 404 can make the two sliding rods 402 approach or move away from the connecting block 403. An empty groove 405 is provided on the sliding rod 402. A connecting groove 406 is provided at the end of the sliding rod 402 away from the connecting block 403. The depths of the empty groove 405 and the connecting groove 406 are half of the depth of the prefabricated rod 4.

[0027] In this solution, as Figure 1 , when splicing the support framework 1, according to the size of the elevator shaft 5, rotate the bidirectional screw rod 404 to make the sliding rods 402 on both sides of the connecting block 403 approach or move away from each other, so that the total length of the sliding rods 402 on both sides adapts to the size of the elevator shaft. Select at least 8 prefabricated rods 4 to splice the support framework 1. Among them, 4 prefabricated rods 4 are arranged horizontally, and the other 4 prefabricated rods 4 are arranged vertically, so that the formed support framework 1 is in a square shape. When splicing the support framework 1, first connect the two horizontal prefabricated rods 4 and the two vertical prefabricated rods 4 end to end to form a square shape as the outer ring of the support framework 1, and the adjacent prefabricated rods 4 are correspondingly fitted through the connecting groove 406; then splice the two horizontal prefabricated rods 4 and the two vertical prefabricated rods 4 into a cross shape, and the adjacent prefabricated rods 4 are correspondingly fitted through the empty groove 405, and the prefabricated rod 4 can slide along the empty groove 405 to adjust the inner ring size of the support framework 1, so that the outer ring of the formed support framework 1 matches the size of the elevator shaft 5. The concrete placer 6 can be installed inside the inner ring of the support framework 1. When the vertical prefabricated rod 4 cooperates with the horizontal prefabricated rod 4, as Figure 3 , since the depths of the empty groove 405 and the connecting groove 406 are half of the depth of the prefabricated rod 4, the connecting groove 406 and the empty groove 405 of the vertical prefabricated rod 4 cooperate with the connecting groove 406 and the empty groove 405 of the horizontal prefabricated rod 4 so that the support surface of the support framework 1 is on the same plane, which is convenient for installing the cover plate 2.

[0028] This solution adjusts the length of the prefabricated rod 4 to adapt to the size of the elevator shaft. By providing the empty groove 405, the inner ring size of the support framework 1 can be adjusted to adapt to the size of the concrete placer, without further processing operations such as truncating and shortening or welding and extending the support framework 1, improving the applicability of the support framework.

[0029] In an embodiment of the present invention, the length of the connection groove 406 is equal to the width of the prefabricated rod 4, and the length of the empty groove 405 is greater than twice the width of the prefabricated rod 4.

[0030] In this solution, as Figure 3 , when splicing the outer ring of the splicing support skeleton 1, the connection grooves 406 on the sliding rod 402 correspond to each other, so that there is no gap between adjacent prefabricated rods 4. The length of the empty groove 405 is greater than twice the width of the prefabricated rod 4, which is convenient for adding prefabricated rods 4 to improve the stability of the support skeleton 1, and enables the prefabricated rods 4 located inside the outer ring of the support skeleton 1 to slide along the empty groove 405.

[0031] In an embodiment of the present invention, a sliding groove 407 is provided on the side of the sliding rod 402 away from the empty groove 405. The bottom plate 401 is slidably installed in the sliding groove 407. A limiting groove 408 is provided on one of the bottom plate 401 and the sliding rod 402, and a limiting rod 409 is provided on the other of the bottom plate 401 and the sliding rod 402. The limiting rod 409 is slidably connected in the limiting groove 408 in a limiting manner.

[0032] In this solution, as Figure 5 and 6 , the depth of the sliding groove 407 is consistent with the thickness of the bottom plate 401, so as to ensure that the bottom end surfaces of the prefabricated rods 4 are on the same plane, and the surface of the formed support skeleton 1 is flat; through the cooperation of the limiting groove 408 and the limiting rod 409, the sliding rod 402 can slide along the bottom plate 401 in a limited manner, so that when the bidirectional screw rod 404 is rotated, the sliding rod 402 can slide along the bottom plate 401 to extend or shorten the length of the prefabricated rod 4.

[0033] In an embodiment of the present invention, a plurality of sets of countersunk holes 410 are provided on the prefabricated rod 4 along the extending direction of the prefabricated rod 4. Each set of countersunk holes 410 includes two countersunk holes 410 provided on the opposite side walls of the prefabricated rod 4. The two countersunk holes 410 are symmetrically arranged and communicated. Adjacent prefabricated rods 4 are fixedly connected by screwing a first bolt into the countersunk holes 410. A connection hole 411 coaxial with the countersunk holes 410 is provided on the prefabricated rod 4. The cover plate 2 is fixedly connected by screwing a second bolt into the connection hole 411.

[0034] In this solution, as Figure 8 , the countersunk holes 410 are threaded holes, and the diameter of the connection hole 411 is not less than the outer diameter of the countersunk holes 410. When building the support skeleton 1, a plurality of prefabricated rods 4 are spliced into a square shape and then fixedly connected by cooperating with the first bolt and the countersunk holes 410. When installing the cover plate 2, the cover plate 2 is fixed on the support skeleton 1 by cooperating with the second bolt and the connection hole 411. Compared with the support skeleton 1 built by the traditional welding method, this solution is convenient for installation and disassembly, enables the prefabricated rods 4 to be reused, and saves costs.

[0035] In one embodiment of the present invention, the cover plate 2 includes: a plurality of support plates 201 arranged side by side, the support plates 201 are connected to each other by telescopic frames 202, and mounting holes 203 corresponding to the connection holes 411 one by one are provided on the support plates 201.

[0036] In this solution, as Figure 7 , the telescopic frame 202 includes, but is not limited to, a scissor-type telescopic frame. By stretching the support plates 201 on both sides of the cover plate 2, the telescopic frame 202 can be deformed, so as to adjust the distance between adjacent support plates 201, thereby adjusting the width of the cover plate 2, and enabling the mounting holes 203 on the cover plate 2 to be connected to the connection holes 411 on the precast rod 4 through second bolts to fix the cover plate 2 to the precast rod 4.

[0037] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A hydraulic concrete placer operating platform in an elevator shaft, comprising: Support framework, characterized in that: a cover plate is installed on the support framework, a bottom rod passing through the reserved hole of the concrete placing boom is installed at the bottom end of the support framework, the support framework is formed by splicing at least 8 precast rods, wherein at least 4 precast rods are arranged horizontally and at least 4 precast rods are arranged vertically so that the formed support framework is in a square shape with a hole in the middle, the outer circle of the support framework fits with the elevator shaft, and the concrete placing boom is installed inside the inner circle of the support framework. The precast rod includes: a bottom plate and two sliding rods slidably installed on the bottom plate. A connecting block is arranged in the middle of the bottom plate. The two sliding rods are symmetrically arranged with respect to the connecting block. A bidirectional screw rod is rotatably installed on the connecting block in a limited manner. The opposite threads on the bidirectional screw rod are respectively threadedly connected with the sliding rods on both sides of the connecting block. An empty groove is arranged on the sliding rod, and a connecting groove is arranged at the end of the sliding rod far away from the connecting block. The depths of the empty groove and the connecting groove are both half of the depth of the precast rod.

2. The hydraulic concrete placer operating platform in the elevator hoistway according to claim 1, wherein: The length of the connecting groove is equal to the width of the precast rod, and the length of the empty groove is greater than twice the width of the precast rod.

3. The hydraulic concrete placer operating platform in the elevator hoistway according to claim 1, characterized in that: A sliding groove is arranged on the sliding rod on the side far away from the empty groove. The bottom plate is slidably installed in the sliding groove. A limiting groove is arranged on one of the bottom plate and the sliding rod, and a limiting rod is arranged on the other of the bottom plate and the sliding rod. The limiting rod is slidably and limitedly connected in the limiting groove.

4. The hydraulic placing boom operating platform in the elevator hoistway according to claim 1, characterized in that: A plurality of sets of countersunk holes are arranged on the precast rod along the extending direction of the precast rod. Each set of countersunk holes includes two countersunk holes arranged on the opposite side walls of the precast rod. The two countersunk holes are symmetrically arranged and communicated. Adjacent precast rods are fixedly connected by screwing a first bolt into the countersunk holes. A connecting hole coaxial with the countersunk hole is arranged on the precast rod. The cover plate is fixedly connected with the connecting hole by screwing a second bolt.

5. The hydraulic placing boom operating platform in the elevator hoistway according to claim 3, characterized in that: The depth of the sliding groove is consistent with the thickness of the bottom plate.

6. The hydraulic placing boom operating platform in the elevator hoistway according to claim 4, characterized in that: The cover plate includes: a plurality of support plates arranged side by side. The support plates are connected by telescopic frames between two adjacent ones. Mounting holes corresponding to the connecting holes one by one are arranged on the support plates. The mounting holes on the cover plate and the connecting holes on the precast rod are connected by second bolts to fix the cover plate and the precast rod.

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