Compact steel formwork for bridge pier

Abstract

The utility model discloses a compact steel formwork for a bridge pier, and relates to the technical field of steel formworks. The steel formwork comprises a steel formwork body, a positioning hole formed in the upper end of the steel formwork body, a positioning rod located at the lower end of the steel formwork body, a clamping groove formed in the upper end of the steel formwork body and a clamping block located at the lower end of the steel formwork body. And; the power-assisted lifting structure comprises a mounting groove, an opening, a rotating shaft rotationally mounted in the mounting groove, a mounting block located in the center of the rotating shaft, a pulley located at the lower end of the mounting block, a torsional spring connected to the outer wall of the rotating shaft in a sleeving mode, a closing plate located in the opening, a connecting block located at the rear end of the closing plate and a spring fixedly arranged at the upper end of the connecting block and the inner wall of the upper end of the mounting groove. By arranging the steel formwork structure and the power-assisted lifting structure, the problems that the connection process is not tight enough due to the fact that the structures between the formworks are large, and hoisting and positioning are inconvenient in the hoisting process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel formwork, in particular to a compact steel formwork for bridge piers. Background Art

[0002] Pier steel formwork is a construction aid used to support the pier structure during concrete pouring. Typically made of metal, such as steel plate, it possesses strong load-bearing and compressive resistance, ensuring temporary support for the pier structure before the concrete hardens. During bridge construction, due to the large size of the pier steel formwork, the assembled steel formwork panels are lifted and spliced together using a hoisting shaft.

[0003] A Chinese patent discloses a bridge pier steel formwork (authorization announcement number CN211472143U). The patented technology includes several vertically arranged frames adapted to the shape of the bridge pier, with steel plates fixedly connected in sections within the frames, and several horizontally arranged, enclosing hoops arranged at intervals on the frames. Several cross braces perpendicular to the hoops are evenly and detachably fixedly connected to the evenly spaced hoops, and pedals are installed on the cross braces. The pedals are provided with passage holes, and vertical ladders are installed at the passage holes. The ladders connect adjacent pedals. The height of the steel plates is adapted to the height of the pedals on the highest layer. Construction workers set up several layers of pedals according to the height of the piers. After the concrete pouring and maintenance is completed, the pedals below the top layer are removed and transported to the top of the top pedal and completed. The steel formwork and pedal erection are carried out simultaneously in layers, which facilitates the layered pouring of concrete on the pedals on the top layer, reduces the difficulty of construction, ensures construction safety, and reuses the pedals, saving resources.

[0004] The pedals of this patented technology can be reused during use, but there are still some shortcomings during use. The structures between the various templates are large, which leads to the connection process being not tight enough, and the positioning is inconvenient during the lifting process because of the lifting. Therefore, the technical personnel in this field provide a compact steel template for bridge piers to solve the problems raised in the above background technology. Utility Model Content

[0005] 1. Technical solution

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model is a compact steel formwork for bridge piers, comprising:

[0008] The steel formwork body includes positioning holes provided inside both sides of the upper end of the steel formwork body, positioning rods located on both sides of the lower end of the steel formwork body, symmetrically distributed card slots provided inside the upper end of the steel formwork body, and symmetrically distributed card blocks located at the lower end of the steel formwork body;

[0009] as well as;

[0010] The assisted lifting structure includes a plurality of mounting grooves provided inside the steel formwork body, an opening provided inside the front end of the steel formwork body and passing through the mounting grooves, a rotating shaft rotatably installed inside the mounting grooves, a mounting block located at the center of the rotating shaft, a pulley located at the lower end of the mounting block, a torsion spring sleeved on the outer wall of the rotating shaft and connected at both ends to the mounting block and the inner wall of the mounting groove respectively, a closing plate located inside the opening, a connecting block located at the rear end of the closing plate, and a spring fixed to the upper end of the connecting block and the inner wall of the upper end of the mounting groove.

[0011] An assembly groove is provided inside the upper end of the steel template body, and a hanging ring is provided on the inner wall of the lower end of the assembly groove;

[0012] Specifically, the lifting ring inside the assembly groove is used in conjunction with the lifting to lift the steel formwork body.

[0013] The lower end of the steel template body is provided with a clamping sleeve, the outer diameter of the clamping sleeve is smaller than the inner diameter of the assembly groove, and the inner diameter specification of the clamping sleeve is larger than the specification of the lifting ring;

[0014] Specifically, after the ferrule is clamped into the inside of the assembly groove, the lifting ring is sleeved to cover the assembly groove.

[0015] A guide rod is slidably mounted inside the connecting block, the upper end of the guide rod being connected to the inner wall of the upper end of the mounting groove, and the guide rod is located inside the spring;

[0016] Specifically, the steel formwork body is inserted into the positioning hole through the positioning rod to achieve longitudinal splicing of the steel formwork body.

[0017] The rear end of the closing plate is provided with symmetrically distributed sliders, the inner wall of the upper end of the installation groove is provided with a support plate, and the interior of the support plate is provided with symmetrically distributed sliding grooves, and the sliders are slidably installed inside the sliding grooves;

[0018] Specifically, the closing plate slides in the sliding groove through the slider, thereby providing longitudinal sliding support for the longitudinally moving closing plate.

[0019] The closing plate is located inside the opening, and the outer wall is flush with the outer wall of the steel formwork body;

[0020] Specifically, the closing plate shell controls the opening and closing of the opening, and the closing plate that closes the opening is flush with the outer wall of the steel formwork body, so that the outer wall of the steel formwork body is smooth and beautiful.

[0021] 2. Beneficial effects

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] The utility model realizes compact splicing between pier steel templates by reducing the volume of each steel structure template and inserting the positioning rod into the positioning hole;

[0024] At the same time, during hoisting, multiple pulleys installed inside the steel formwork body are flipped, and the outer wall of the steel formwork body is extended and slid when lifted. During the hoisting process, one end of the steel formwork body is supported by sliding. During the longitudinal splicing process, excessive shaking of the steel formwork body is avoided, and the hoisting stability of the steel formwork body is improved, which provides assistance for tightly splicing the steel formwork body.

[0025] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a top view;

[0029] Figure 3 This is a bottom-up three-dimensional structural diagram of the present invention;

[0030] Figure 4 This is a schematic diagram of the three-dimensional structure of the interior of the installation slot of the utility model from a top view;

[0031] Figure 5 This is a schematic diagram of the main three-dimensional structure of the pulley of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] 100, steel formwork body; 101, positioning hole; 102, assembly groove; 103, lifting ring; 104, clamping groove; 105, clamping sleeve; 106, clamping block; 107, positioning rod;

[0034] 200. Power-assisted lifting structure; 201. Closing plate; 202. Support plate; 203. Slide groove; 204. Rotating shaft; 205. Mounting block; 206. Torsion spring; 207. Pulley; 208. Spring; 209. Mounting groove; 210. Opening; 211. Slider; 212. Connecting block; 213. Guide rod. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0039] Example 1

[0040] See also Figure 1-Figure 5 As shown, this embodiment is a compact steel formwork for bridge piers, comprising:

[0041] The steel formwork body 100 includes positioning holes 101 provided on both sides of the upper end of the steel formwork body 100, positioning rods 107 provided on both sides of the lower end of the steel formwork body 100, symmetrically distributed card slots 104 provided on the upper end of the steel formwork body 100, and symmetrically distributed card blocks 106 provided on the lower end of the steel formwork body 100;

[0042] An assembly groove 102 is provided inside the upper end of the steel template body 100, and a hanging ring 103 is provided on the inner wall of the lower end of the installation groove 209;

[0043] A ferrule 105 is provided at the lower end of the steel template body 100. The outer diameter of the ferrule 105 is smaller than the inner diameter of the assembly groove 102, and the inner diameter of the ferrule 105 is larger than the specification of the lifting ring 103.

[0044] Use the steel formwork body 100;

[0045] The lifting hook is sleeved on the lifting ring 103 to lift the steel formwork body 100. The steel formwork body 100 is inserted into the positioning hole 101 through the positioning rod 107 at the bottom to realize the docking of the two steel formwork bodies 100. After the steel formwork bodies 100 are docked, the steel formwork bodies 100 are longitudinally spliced, and the card block 106 is inserted into the card slot 104 during splicing, which increases the compactness of the bite between the steel formwork bodies 100, and the lifting ring 103 is clamped and shielded by the card sleeve 105, and the lifting ring 103 is received in the assembly groove 102, which makes the structure of the steel formwork body 100 compact and facilitates the docking and installation of the steel formwork body 100.

[0046] Example 2

[0047] See also Figure 1-Figure 5 As shown, this embodiment is based on embodiment 1 and also includes:

[0048] as well as;

[0049] The assisted lifting structure 200 includes a plurality of mounting grooves 209 provided inside the steel formwork body 100, an opening 210 provided inside the front end of the steel formwork body 100 and passing through the mounting grooves 209, a rotating shaft 204 rotatably installed inside the mounting grooves 209, a mounting block 205 located at the center of the rotating shaft 204, a pulley 207 located at the lower end of the mounting block 205, a torsion spring 206 sleeved on the outer wall of the rotating shaft 204 and connected at both ends to the mounting block 205 and the inner wall of the mounting groove 209 respectively, a closing plate 201 located inside the opening 210, a connecting block 212 located at the rear end of the closing plate 201, and a spring 208 fixed to the upper end of the connecting block 212 and the inner wall of the upper end of the mounting groove 209.

[0050] A guide rod 213 is slidably mounted inside the connecting block 212, the upper end of which is connected to the inner wall of the upper end of the mounting groove 209. The guide rod 213 is located inside the spring 208.

[0051] The rear end of the closing plate 201 is provided with symmetrically distributed sliders 211, the inner wall of the upper end of the mounting groove 209 is provided with a support plate 202, and the support plate 202 is provided with symmetrically distributed sliding grooves 203, and the sliders 211 are slidably installed inside the sliding grooves 203;

[0052] The closing plate 201 is located inside the opening 210 , and its outer wall is flush with the outer wall of the steel formwork body 100 ;

[0053] Using the power-assisted lifting structure 200;

[0054] Before the steel formwork body 100 is hoisted and lifted, the closing plate 201 is lifted, squeezing the spring 208. The spring 208 is forced to shrink, and the closing plate 201 moves inside the stroke port. Through the torsional elasticity of the torsion spring 206, it acts on the mounting block 205. The mounting block 205 is forced to flip over, driving the pulley 207 to move out of the outside world. The pulley 207 slides on the outer wall of the erected steel formwork body 100, providing sliding support for the lifted steel formwork body 100, avoiding excessive shaking of the steel formwork body 100 when it is lifted, making the lifting of the steel formwork body 100 stable, facilitating the docking of the steel formwork body 100, and providing assistance for the docking of the steel formwork body 100.

[0055] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0056] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A compact steel formwork for bridge piers, characterized by: include, The steel template body (100) comprises positioning holes (101) provided inside both sides of the upper end of the steel template body (100), positioning rods (107) located on both sides of the lower end of the steel template body (100), symmetrically distributed clamping grooves (104) provided inside the upper end of the steel template body (100), and symmetrically distributed clamping blocks (106) located at the lower end of the steel template body (100); as well as; The auxiliary lifting structure (200) comprises a plurality of mounting grooves (209) provided inside a steel template body (100), an opening (210) provided inside the front end of the steel template body (100) and passing through the mounting grooves (209), a rotating shaft (204) rotatably installed inside the mounting grooves (209), a mounting block (205) located at the center of the rotating shaft (204), a pulley (207) located at the lower end of the mounting block (205), a torsion spring (206) sleeved on the outer wall of the rotating shaft (204) and having two ends connected to the mounting block (205) and the inner wall of the mounting groove (209), a closing plate (201) located inside the opening (210), a connecting block (212) located at the rear end of the closing plate (201), and a spring (208) fixed to the upper end of the connecting block (212) and the inner wall of the upper end of the mounting groove (209).

2. The compact steel formwork for bridge piers according to claim 1, characterized in that: An assembly groove (102) is provided inside the upper end of the steel template body (100), and a hanging ring (103) is provided on the inner wall of the lower end of the installation groove (209).

3. The compact steel formwork for bridge piers according to claim 2, characterized in that: A clamping sleeve (105) is provided at the lower end of the steel template body (100); the outer diameter of the clamping sleeve (105) is smaller than the inner diameter of the assembly groove (102); and the inner diameter specification of the clamping sleeve (105) is larger than the specification of the lifting ring (103).

4. The compact steel formwork for bridge piers according to claim 1, characterized in that: A guide rod (213) whose upper end is connected to the inner wall of the upper end of the installation groove (209) is slidably installed inside the connecting block (212), and the guide rod (213) is located inside the spring (208).

5. The compact steel formwork for bridge piers according to claim 1, characterized in that: The rear end of the closing plate (201) is provided with symmetrically distributed sliders (211), the inner wall of the upper end of the installation groove (209) is provided with a support plate (202), the interior of the support plate (202) is provided with symmetrically distributed slide grooves (203), and the sliders (211) are slidably installed inside the slide grooves (203).

6. The compact steel formwork for bridge piers according to claim 1, characterized in that: The closing plate (201) is located inside the opening (210), and its outer wall is flush with the outer wall of the steel formwork body (100).

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