Self-elevating operation platform in hollow pier

Abstract

The invention relates to the technical field of bridge construction, in particular to a self-elevating operation platform in a hollow pier, the self-elevating operation platform comprises a base and a top seat, and a lifting control assembly is arranged between the base and the top seat; first telescopic rods are distributed on the base, second telescopic rods are distributed on the top seat, clamping holes corresponding to the ends of the embedded rods are formed in the ends of the first telescopic rods and the ends of the second telescopic rods, and the self-elevating operation platform further comprises a first telescopic control assembly and a second telescopic control assembly. The longitudinal distance between the top seat and the bottom seat is controlled through the lifting control assembly, the first telescopic rod and the second telescopic rod which are arranged on the bottom seat and the top seat can be fixedly supported with the embedded rod after stretching out, and the integrated operation platform capable of vertically climbing in the hollow pier is formed; the safety of workers in the process of dismantling the inner formwork is achieved, and the efficiency of the whole dismantling process is improved.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, specifically to a self-elevating operating platform inside hollow bridge piers. Background Technology

[0002] The construction of hollow bridge piers requires the erection of outer and inner formwork, forming an elliptical track structure between them. Concrete is injected into the gap between the inner and outer formwork to build the piers. During the erection of the inner and outer formwork, embedded rods are installed in the concrete, with the ends of the embedded rods penetrating the inner formwork. Currently, after the hollow bridge piers are poured, the inner formwork will be removed. The removal method involves using a crane in conjunction with workers to remove the inner formwork. This method is highly dangerous and uncontrollable for personnel. Furthermore, the way the crane suspends workers while removing the inner formwork means that the workers are constantly suspended in the air and cannot form an effective support point, which greatly affects the efficiency of the inner formwork removal. Summary of the Invention

[0003] In view of this, the purpose of this invention is to propose a self-elevating operating platform inside hollow bridge piers to solve the technical problem that the method of dismantling the inner formwork by using a crane in conjunction with workers poses a great danger to personnel and greatly affects the efficiency of dismantling the inner formwork.

[0004] Based on the above objectives, the present invention provides a self-elevating operating platform inside a hollow bridge pier. The hollow bridge pier is formed by casting an elliptical runway structure using an outer template and an inner template. The hollow bridge pier has two flat surfaces, and embedded rods are distributed on both flat surfaces, with the embedded rods arranged along the height direction of the hollow bridge pier. The self-elevating operating platform includes a base and a top seat, and a lifting control component is provided between the base and the top seat to control the distance between the base and the top seat; The base is provided with a first telescopic rod, and the top seat is provided with a second telescopic rod. The ends of the first and second telescopic rods are provided with locking holes corresponding to the ends of the pre-embedded rods. The self-elevating operating platform also includes a first telescopic control component and a second telescopic control component, which are used to drive the locking holes of the first and second telescopic rods to engage with the ends of the pre-embedded rods.

[0005] Preferably, the base is provided with a first sliding groove, and the top seat is provided with a second sliding groove on the same side as the first sliding groove; The upgraded control component includes a scissor-type linkage. The fixed end of the bottom of the scissor-type linkage is hinged to the base, and the movable end of the bottom of the scissor-type linkage is provided with a first sliding rod, which is slidably connected to a first sliding groove. The fixed end of the top of the scissor-type linkage is hinged to the top seat, and the movable end of the top of the scissor-type linkage is provided with a second sliding rod, which is slidably connected to a second sliding groove.

[0006] The lifting control assembly also includes a cylinder, which is fixedly mounted on the base, and the piston rod of the cylinder is connected to the first sliding rod.

[0007] Preferably, there are four first telescopic rods, which are symmetrically distributed on the base, and the first telescopic rods are slidably connected to the base.

[0008] Preferably, there are four second telescopic rods, which are symmetrically distributed on the top seat, and the second telescopic rods are slidably connected to the top seat.

[0009] Preferably, the first telescopic control component includes a first slide rail disposed on the base and a first drive rod rotatably disposed on the base; The first slide rail is provided with a first linkage component and a second linkage component. The first linkage component and the second linkage component have the same structure. The first linkage component includes a first sliding block that is slidably disposed on the first slide rail, and a first connecting rod and a second connecting rod that are symmetrically disposed on the first sliding block. One end of the first connecting rod and the second connecting rod are hinged to the first sliding block, and the other end of the first connecting rod and the second connecting rod are respectively hinged to the inner end of the first telescopic rod disposed on both sides of the base. The first drive rod has two symmetrically distributed threaded grooves, which are threadedly connected to the two first sliding blocks respectively.

[0010] A first servo motor is fixedly mounted on the base, and the output shaft of the first servo motor is connected to the first drive rod.

[0011] Preferably, the second telescopic control assembly includes a second slide rail disposed on the top seat and a second drive rod rotatably disposed on the top seat; The second slide rail is provided with a third linkage component and a fourth linkage component. The third linkage component and the fourth linkage component have the same structure. The third linkage component includes a second sliding block that is slidably disposed on the second slide rail, and a third link and a fourth link that are symmetrically disposed on the second sliding block. One end of the third link and the fourth link is hinged to the second sliding block, and the other end of the third link and the fourth link are respectively hinged to the inner end of the second telescopic rod disposed on both sides of the base. The second drive rod has two symmetrically distributed threaded grooves, which are threadedly connected to the two third sliding blocks respectively.

[0012] A second servo motor is fixedly mounted on the base, and the output shaft of the second servo motor is connected to the second drive rod.

[0013] Preferably, the top seat is provided with a frame plate and an extension plate. The frame plate is fixedly installed on the top seat, and there are two extension plates symmetrically arranged at the bottom of the frame plate. The extension plates are slidably connected to the frame plate. The top base is also equipped with an extension drive mechanism to control the extension plate to extend from the bottom of the frame to increase the support area.

[0014] Preferably, the extended drive mechanism includes: There are two third sliding blocks, both of which are slidably mounted on the upper surface of the frame plate and correspond to the two expansion plates respectively. The fifth link has its two ends connected to the extension plate and the third sliding block on the same side; The third drive rod is rotatably mounted on the frame plate. Two threaded grooves are symmetrically distributed on the third drive rod, and the two threaded grooves are threadedly connected to the two third sliding blocks respectively. The third servo motor is mounted on the top mount, and its output shaft is connected to the third drive rod via a bevel gear set.

[0015] The beneficial effects of this invention are: This invention controls the longitudinal distance between the top seat and the base by using a lifting control component. The first and second telescopic rods, which are set on the base and the top seat, can be fixedly supported with the pre-embedded rods after they are extended, forming an integrated operating platform that can vertically climb inside the hollow bridge pier. This ensures the safety of workers during the removal of the inner formwork and improves the efficiency of the overall removal process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a top view of the present invention; Figure 2 for Figure 1 A sectional view along the AA direction; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the three-dimensional exploded structure of the present invention. Figure 1 ; Figure 5This is a schematic diagram of the three-dimensional exploded structure of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 7 This is a schematic diagram of the internal structure of the top seat of the present invention; Figure 8 This is a partial structural diagram of the present invention.

[0018] The numbers on the map are: 1-Base; 2-Top mount; 21-Frame plate; 22-Extension plate; 23-Extension drive mechanism; 231-Third sliding block; 232-Fifth link; 233-Third drive rod; 234-Third servo motor; 3-Lifting control assembly; 31-Scissor linkage; 311-First sliding rod; 312-Second sliding rod; 32-Cylinder; 4-First telescopic rod; 5-Second telescopic rod; 6-First telescopic control assembly; 61-First slide rail; 62-First drive rod; 63-First servo motor; 64-First linkage assembly; 641-First sliding block; 642-First link; 643-Second link; 65-Second linkage assembly; 7-Second telescopic control assembly; 71-Second slide rail; 72-Second drive rod; 73-Second servo motor; 74-Third linkage assembly; 741-Second sliding block; 742-Third link; 743-Fourth link; 75-Fourth linkage assembly. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] This invention proposes a self-elevating operating platform inside hollow bridge piers, such as... Figures 1 to 3As shown, the hollow bridge pier is formed by casting an elliptical track structure using an outer formwork and an inner formwork. The hollow bridge pier has two flat surfaces, and embedded rods are distributed on both flat surfaces, with the embedded rods arranged along the height direction of the hollow bridge pier. The embedded rods are installed on the inner wall of the outer formwork, and the ends of the embedded rods penetrate the inner formwork. The self-elevating operating platform includes a base 1 and a top seat 2. A lifting control component 3 is provided between the base 1 and the top seat 2 to control the distance between the base 1 and the top seat 2. The base 1 is provided with a first telescopic rod 4, and the top seat 2 is provided with a second telescopic rod 5. The ends of the first telescopic rod 4 and the second telescopic rod 5 are provided with locking holes corresponding to the ends of the pre-embedded rods. The self-elevating operating platform also includes a first telescopic control component 6 and a second telescopic control component 7, which are used to drive the locking holes of the first telescopic rod 4 and the second telescopic rod 5 to engage with the ends of the pre-embedded rods.

[0022] like Figure 3 As shown, going a step further: The base 1 is provided with a first sliding groove, and the top seat 2 is provided with a second sliding groove on the same side as the first sliding groove; The lifting control assembly 3 includes a scissor-type linkage 31. The fixed end of the bottom of the scissor-type linkage 31 is hinged to the base 1. The movable end of the bottom of the scissor-type linkage 31 is provided with a first sliding rod 311, and the first sliding rod 311 is slidably connected to a first sliding groove. The fixed end of the top of the scissor-type linkage 31 is hinged to the top seat 2. The movable end of the top of the scissor-type linkage 31 is provided with a second sliding rod 312, and the second sliding rod 312 is slidably connected to a second sliding groove.

[0023] The lifting control assembly 3 also includes a cylinder 32, which is fixedly installed on the base 1, and the piston rod of the cylinder 32 is connected to the first sliding rod 311.

[0024] like Figures 3 to 5 As shown, going a step further: There are four first telescopic rods 4, which are symmetrically distributed on the base 1, and the first telescopic rods 4 are slidably connected to the base 1.

[0025] like Figures 3 to 5 As shown, going a step further: There are four second telescopic rods 5, which are symmetrically distributed on the top seat 2, and the second telescopic rods 5 are slidably connected to the top seat 2.

[0026] like Figure 4 As shown, going a step further: The first telescopic control component 6 includes a first slide rail 61 disposed on the base 1, and a first drive rod 62 rotatably disposed on the base 1; The first slide rail 61 is provided with a first linkage component 64 and a second linkage component 65. The first linkage component 64 and the second linkage component 65 have the same structure. The first linkage component 64 includes a first sliding block 641 slidably disposed on the first slide rail 61, and a first connecting rod 642 and a second connecting rod 643 symmetrically disposed on the first sliding block 641. One end of the first connecting rod 642 and the second connecting rod 643 is hinged to the first sliding block 641, and the other end of the first connecting rod 642 and the second connecting rod 643 is respectively hinged to the inner end of the first telescopic rod 4 disposed on both sides of the base 1. The first drive rod 62 has two symmetrically distributed threaded grooves, which are threadedly connected to the two first sliding blocks 641 respectively.

[0027] A first servo motor 63 is fixedly mounted on the base 1, and the output shaft of the first servo motor 63 is connected to the first drive rod 62.

[0028] like Figure 5 As shown, going a step further: The second telescopic control assembly 7 includes a second slide rail 71 disposed on the top seat 2, and a second drive rod 72 rotatably disposed on the top seat 2; The second slide rail 71 is provided with a third linkage component 74 and a fourth linkage component 75. The third linkage component 74 and the fourth linkage component 75 have the same structure. The third linkage component 74 includes a second sliding block 741 slidably disposed on the second slide rail 71, and a third link 742 and a fourth link 743 symmetrically disposed on the second sliding block 741. One end of the third link 742 and the fourth link 743 is hinged to the second sliding block 741, and the other end of the third link 742 and the fourth link 743 is respectively hinged to the inner end of the second telescopic rod 5 disposed on both sides of the base 1. The second drive rod 72 has two symmetrically distributed threaded grooves, which are threadedly connected to the two third sliding blocks respectively.

[0029] A second servo motor 73 is fixedly mounted on the base 1, and the output shaft of the second servo motor 73 is connected to the second drive rod 72.

[0030] In this embodiment, a crane is used to hoist the self-elevating operating platform down into the hollow bridge pier. It should be noted that the self-elevating operating platform itself has a certain height, so workers need to first remove the bottom inner formwork erected at the bottom of the hollow bridge pier. The embedded rod is set on the inner wall of the outer template, and the end of the embedded rod penetrates the inner template; the embedded rod is arranged along the height direction of the hollow pier, and each layer of embedded rods is set with at least four rods, corresponding to the first telescopic rod 4 set on the base 1 or the second telescopic rod 5 set on the top seat 2. The four first telescopic rods 4 symmetrically arranged on the base 1 are extended by the first telescopic control component 6. Specifically, the first servo motor 63 drives the first drive rod 62 to rotate. Since the first drive rod 62 has two threaded grooves symmetrically distributed on it, and the two threaded grooves are threadedly connected to the two first sliding blocks 641 respectively, the two first sliding blocks 641 are driven to move away from each other, so that the first connecting rod 642 and the second connecting rod 643 extend outward at the same time. Finally, the four first telescopic rods 4 slidably arranged on the base 1 extend outward at the same time, and the locking holes opened on the first telescopic rods 4 are fitted onto the pre-embedded rod to form a support for the base 1. Workers need to stand on the upper surface of the top seat 2 and use the cylinder 32 in the lifting control component 3 to drive the top of the scissor rod 31 to push the top seat 2 up, so that workers can remove the second layer of inner template. After the removal is completed; The four symmetrically arranged second telescopic rods 5 on the top seat 2 are extended by the second telescopic control component 7. The locking holes on the second telescopic rods 5 are fitted onto the embedded rods to form support and fixation for the top seat 2. The first telescopic rod 4 on the base 1 retracts, the upper lifting control component 3 controls the base 1 to rise, and then the first telescopic rod 4 extends again to form a fixed connection with the embedded rod. The second telescopic rods 5 on the top seat 2 retract, the upper lifting control component 3 controls the top seat 2 to rise, and the workers can then remove the inner formwork of the third layer. After the inner formwork is removed, it will be lifted out by a crane.

[0031] like Figures 6 to 8 As shown, in some embodiments, the support area for workers can be expanded to improve the adaptability of the operating platform. The top base 2 is provided with a frame plate 21 and an extension plate 22. The frame plate 21 is fixedly installed on the top base 2. There are two extension plates 22, which are symmetrically arranged at the bottom of the frame plate 21, and the extension plates 22 are slidably connected to the frame plate 21. The top seat 2 is also provided with an extension drive mechanism 23, which is used to control the extension plate 22 to extend from the bottom of the frame plate 21 to increase the support area.

[0032] Extended drive mechanism 23 includes: There are two third sliding blocks 231. Both sliding blocks are slidably installed on the upper surface of the frame plate 21 and correspond to the two extension plates 22 respectively. The fifth link 232 is connected at both ends to the extension plate 22 and the third sliding block 231 on the same side; The third drive rod 233 is rotatably mounted on the frame plate 21. Two threaded grooves are symmetrically distributed on the third drive rod 233, and the two threaded grooves are threadedly connected to the two third sliding blocks 231 respectively.

[0033] In the extended drive mechanism 23, the third servo motor 234 drives the third drive rod 233 to rotate through the bevel gear set. Since there are two threaded grooves symmetrically distributed on the third drive rod 233, and the two threaded grooves are threadedly connected to the two third sliding blocks 231 respectively, the two third sliding blocks 231 will be driven to move away from each other and push out the extension plate 22 through the fifth connecting rod 232, thereby increasing the support area for the staff and expanding the range of motion.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0035] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. The hollow bridge pier has an internal self-elevating operating platform. The hollow bridge pier is formed by casting an elliptical runway structure through an outer template and an inner template. The hollow bridge pier has two flat surfaces, and embedded rods are distributed on both flat surfaces. The embedded rods are arranged along the height direction of the hollow bridge pier. Its features are, The self-elevating operating platform includes a base and a top seat, and a lifting control component is provided between the base and the top seat to control the distance between the base and the top seat; The base is provided with a first telescopic rod, and the top seat is provided with a second telescopic rod. The ends of the first and second telescopic rods are provided with locking holes corresponding to the ends of the pre-embedded rods. The self-elevating operating platform also includes a first telescopic control component and a second telescopic control component, which are used to drive the locking holes of the first and second telescopic rods to engage with the ends of the pre-embedded rods.

2. The self-elevating operating platform inside the hollow bridge pier according to claim 1, characterized in that, The base is provided with a first sliding groove, and the top seat is provided with a second sliding groove on the same side as the first sliding groove; The upgraded control component includes a scissor-type linkage. The fixed end of the bottom of the scissor-type linkage is hinged to the base, and the movable end of the bottom of the scissor-type linkage is provided with a first sliding rod, which is slidably connected to a first sliding groove. The fixed end of the top of the scissor-type linkage is hinged to the top seat, and the movable end of the top of the scissor-type linkage is provided with a second sliding rod, which is slidably connected to a second sliding groove. The lifting control assembly also includes a cylinder, which is fixedly mounted on the base, and the piston rod of the cylinder is connected to the first sliding rod.

3. The self-elevating operating platform inside the hollow bridge pier according to claim 1, characterized in that, There are four first telescopic rods, which are symmetrically distributed on the base and are slidably connected to the base.

4. The self-elevating operating platform inside the hollow bridge pier according to claim 1, characterized in that, There are four second telescopic rods, which are symmetrically distributed on the top seat, and the second telescopic rods are slidably connected to the top seat.

5. The self-elevating operating platform inside the hollow bridge pier according to claim 3, characterized in that, The first telescopic control assembly includes a first slide rail disposed on the base and a first drive rod rotatably disposed on the base; The first slide rail is provided with a first linkage component and a second linkage component. The first linkage component and the second linkage component have the same structure. The first linkage component includes a first sliding block that is slidably disposed on the first slide rail, and a first connecting rod and a second connecting rod that are symmetrically disposed on the first sliding block. One end of the first connecting rod and the second connecting rod are hinged to the first sliding block, and the other end of the first connecting rod and the second connecting rod are respectively hinged to the inner end of the first telescopic rod disposed on both sides of the base. The first drive rod has two symmetrically distributed threaded grooves, which are threadedly connected to the two first sliding blocks respectively. A first servo motor is fixedly mounted on the base, and the output shaft of the first servo motor is connected to the first drive rod.

6. The self-elevating operating platform inside the hollow bridge pier according to claim 4, characterized in that, The second telescopic control assembly includes a second slide rail disposed on the top seat and a second drive rod rotatably disposed on the top seat; The second slide rail is provided with a third linkage component and a fourth linkage component. The third linkage component and the fourth linkage component have the same structure. The third linkage component includes a second sliding block that is slidably disposed on the second slide rail, and a third link and a fourth link that are symmetrically disposed on the second sliding block. One end of the third link and the fourth link is hinged to the second sliding block, and the other end of the third link and the fourth link are respectively hinged to the inner end of the second telescopic rod disposed on both sides of the base. The second drive rod has two symmetrically distributed threaded grooves, which are threadedly connected to the two third sliding blocks respectively.

7. The self-elevating operating platform inside the hollow bridge pier according to claim 6, characterized in that, A second servo motor is fixedly mounted on the top base, and the output shaft of the second servo motor is connected to the second drive rod.

8. The self-elevating operating platform inside the hollow bridge pier according to claim 1, characterized in that, The top base is provided with a frame plate and an extension plate. The frame plate is fixedly installed on the top base, and there are two extension plates symmetrically arranged at the bottom of the frame plate. The extension plates are slidably connected to the frame plate. The top base is also equipped with an extension drive mechanism to control the extension plate to extend from the bottom of the frame to increase the support area.

9. The self-elevating operating platform inside the hollow bridge pier according to claim 7, characterized in that, The extended drive mechanism includes: There are two third sliding blocks, both of which are slidably mounted on the upper surface of the frame plate and correspond to the two expansion plates respectively. The fifth link is connected at both ends to the extension plate and the third sliding block on the same side.

10. The self-elevating operating platform inside the hollow bridge pier according to claim 9, characterized in that, The extended drive mechanism also includes: a third drive rod, which is rotatably mounted on the frame plate. The third drive rod has two threaded grooves symmetrically distributed on it, and the two threaded grooves are threadedly connected to two third sliding blocks respectively. The third servo motor is mounted on the top mount, and its output shaft is connected to the third drive rod via a bevel gear set.

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