Concrete pouring formwork system for protective cap of overhead transmission line iron tower

Abstract

The utility model discloses an overhead transmission line iron tower protective cap concrete pouring template system, which relates to the technical field of concrete pouring templates, and comprises an iron tower foundation, a protective cap template arranged on the iron tower foundation, and a positioning assembly used for positioning the protective cap template, a connecting unit is arranged between every two adjacent rod piece positioning units, and the protective cap formwork is located in a limiting space defined by the connecting units. The positioning system is reasonable in design, the protective cap formwork is accurately and firmly positioned at the specific position of a foundation through the positioning system, it is ensured that the thicknesses of foundation bolts and a tower foot plate protective layer meet the requirements, meanwhile, it is ensured that the formwork is stable in position and does not displace in the pouring process, and due to the stability of the positioning system, a vibrator can be used in the pouring process; the defects that in a conventional pouring method, a vibrator cannot be used, and the number of finished product voids and pitted surfaces is large are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete casting formwork, and more specifically to the technical field of a concrete casting formwork system for the protection cap of an overhead transmission line tower. Background Technique

[0002] The exposed part of the anchor bolts of the transmission line tower foundation should be poured with concrete protection cap after the tower is erected. Its function is to prevent the bolts from rusting and being damaged artificially. The protection cap should be cast in one go. The width of the protection cap should ensure that the protection thickness of the tower foot plate and the anchor bolts is not less than 50mm, and the height should exceed the anchor bolts by 50 - 100mm and not less than 300mm. Determine the height, width and drainage slope of the protection caps for various types of tower foot plates to achieve unified technology.

[0003] In the current existing technology, square or circular formwork is adopted for the protection cap of the transmission line tower foundation, which is directly placed on the foundation top surface. The positioning is inaccurate, and the formwork is not fixed during the pouring process and can slide, making it difficult to ensure the protection thickness of the anchor bolts and the tower foot plate.

[0004] Affected by the tower form, the protection caps are mostly poured at different positions of the foundation top elevation. The protection cap formwork in the current construction plan is mostly directly placed on the foundation, and the positioning depends entirely on handwork. It is easy to slide during the pouring process, affecting the protection thickness of the anchor bolts. At the same time, most of the formwork is made of steel, which is heavy and not easy to carry. Content of the Utility Model

[0005] The purpose of the utility model is: to solve the above technical problems, the utility model provides a concrete casting formwork system for the protection cap of an overhead transmission line tower.

[0006] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0007] The utility model provides a concrete casting formwork system for the protection cap of an overhead transmission line tower, including a tower foundation, a protection cap formwork arranged on the tower foundation, and a positioning component for positioning the protection cap formwork. The positioning component includes a plurality of detachable rod positioning units, and a connection unit is arranged between adjacent two rod positioning units. The protection cap formwork is located in the limiting space surrounded by the connection unit.

[0008] In an embodiment, the protection cap formwork at least includes a plurality of formwork units, and adjacent two formwork units are in plug-in fit.

[0009] Specifically, the protection cap formwork is segmented (including a plurality of formwork units), with lengths of 200mm, 100mm, etc., and can be combined into different lengths to adapt to different length requirements on site. It is convenient for assembling different sections of sleeves and improves the visual quality of the protection cap.

[0010] In one embodiment, the template unit is a circular template, and the circular template includes two semi-circular templates symmetrically arranged. Both joints of the two semi-circular templates are connected by hinges, and the hinge joints are fixed by pins.

[0011] Specifically, the two semi-circular templates are connected by hinges, and the hinge joints are fixed by pins, which is convenient for on-site disassembly and transportation. With the cooperation of the positioning system, the positioning and pouring of the circular protective cap can be quickly completed.

[0012] In one embodiment, each rod positioning unit includes a support rod and a square limiting body arranged at the top of the support rod. Each square limiting body is provided with threaded holes that are skew and orthogonal to each other.

[0013] In one embodiment, the tower foundation is a frustum structure, and the number of rod positioning units is four and they are evenly distributed on the side wall of the frustum structure in a circumferential manner.

[0014] In one embodiment, the connecting unit is a positioning screw; the support rods of each rod positioning unit are fixed on the outer wall of the tower foundation, and the square limiting bodies of two adjacent rod positioning units are connected by a positioning screw passing through the corresponding threaded holes and locked by nuts.

[0015] In one embodiment, the template unit is a square template;

[0016] The tower foundation is a frustum structure, and the number of rod positioning units is four and they are evenly distributed on the side wall of the frustum structure in a circumferential manner; each rod positioning unit includes a support rod and a square limiting body arranged at the top of the support rod. Each square limiting body is provided with threaded holes that are skew and orthogonal to each other. The connecting unit is a positioning screw; the support rods of each rod positioning unit are fixed on the outer wall of the tower foundation, and the square limiting bodies of two adjacent rod positioning units are connected by a positioning screw passing through the corresponding threaded holes and locked by nuts;

[0017] Each positioning screw is parallel to a corresponding side of the square template.

[0018] Specifically, a portable positioning system composed of positioning screws and limiting bodies is designed, which is applicable to square templates and circular templates, firmly fixes the template at a specific position on the top surface of the tower foundation, ensures the protective layer thickness of the anchor bolts and tower base plates, avoids sliding during the pouring process, and ensures the pouring quality.

[0019] In one embodiment, two L-shaped pads are arranged at different positions inside each square limiting body, and a backing plate is arranged inside the two L-shaped pads with the same height of two adjacent square limiting bodies.

[0020] Specifically, L-shaped pads and pads are designed for square formworks, so that the positioning system can position square formworks of various materials, thereby realizing the applicability of the positioning system to square formworks and being compatible with square formworks made of various simple construction materials.

[0021] In one embodiment, each pad is in contact with a side surface of a corresponding square template.

[0022] In one embodiment, the semicircular template is made of PVC lightweight material.

[0023] The beneficial effects of the utility model are as follows:

[0024] 1. The utility model has a reasonable design and adopts a positioning system to accurately and firmly position the protective cap template at a specific position of the foundation, ensuring that the thickness of the protective layer of the anchor bolts and the tower foot plate meets the requirements, while ensuring that the template position is stable and does not shift during the pouring process. Due to the stability of the positioning system, a vibrator can be used during the pouring process, avoiding the disadvantages of not being able to use a vibrator in conventional pouring methods and having more honeycombed surfaces in the finished product.

[0025] 2. The two lightweight semicircular formworks can be quickly disassembled and assembled, and can be easily transported, which solves the disadvantage of the traditional semicircular steel formworks that are inconvenient to carry. With the positioning system, convenient, fast and accurate casting of the protective cap can be achieved.

[0026] 3. The positioning system can achieve compatibility with prefabricated square formwork and square formwork constructed with simple materials through L-shaped pads and pads. By combining various common square formworks, convenient and accurate protective cap casting tasks can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of the utility model (with a circular template);

[0029] Figure 2 yes Figure 1 Structural schematic diagram of the middle rod positioning unit;

[0030] Figure 3 It is a structural schematic diagram of the utility model (with a square template);

[0031] Figure 4 yes Figure 3 A top view of

[0032] Figure 5 is a structural schematic diagram of an L-shaped spacer block;

[0033] Figure 6 is a structural schematic diagram of a circular template;

[0034] Figure 7 is a structural schematic diagram of a square limiting body;

[0035] Reference numerals: 1 - tower foundation, 2 - square limiting body, 3 - L-shaped spacer block, 4 - spacer block, 5 - positioning screw, 6 - nut, 7 - square template, 8 - circular template. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0038] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0039] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0040] Embodiment 1

[0041] As Figures 1 to 7As shown, this embodiment provides an overhead transmission line tower protective cap concrete casting formwork system, including a tower foundation 1, a protective cap formwork arranged on the tower foundation 1, and a positioning assembly for positioning the protective cap formwork, the positioning assembly including a plurality of detachably connected rod positioning units, a connecting unit being arranged between two adjacent rod positioning units, and the protective cap formwork being located in a limited space surrounded by the connecting units.

[0042] The protective cap template comprises at least a plurality of template units, and two adjacent template units are plug-fitted.

[0043] Specifically, the protective cap template is set in sections (including multiple template units), with different lengths such as 200mm and 100mm, which can be combined into different lengths to meet the different length requirements on site. It is convenient to assemble different sections and improve the visual quality of the protective cap.

[0044] Example 2

[0045] like Figures 1 to 7 As shown, this embodiment provides an overhead transmission line tower protective cap concrete casting formwork system, including a tower foundation 1, a protective cap formwork arranged on the tower foundation 1, and a positioning assembly for positioning the protective cap formwork, the positioning assembly including a plurality of detachably connected rod positioning units, a connecting unit being arranged between two adjacent rod positioning units, and the protective cap formwork being located in a limited space surrounded by the connecting units.

[0046] The template unit is a circular template 8, which includes two symmetrically arranged semicircular templates. The two semicircular templates are connected at the joints by hinges, and the hinge connection is fixed by pins.

[0047] Specifically, the two semicircular formworks are connected by hinges, and the hinge joints are fixed with pins, which are convenient for on-site disassembly and assembly and transportation. The positioning system can quickly complete the positioning and pouring of the circular protective cap.

[0048] Example 3

[0049] like Figures 1 to 7 As shown, this embodiment provides an overhead transmission line tower protective cap concrete casting formwork system, including a tower foundation 1, a protective cap formwork arranged on the tower foundation 1, and a positioning assembly for positioning the protective cap formwork, the positioning assembly including a plurality of detachably connected rod positioning units, a connecting unit being arranged between two adjacent rod positioning units, and the protective cap formwork being located in a limited space surrounded by the connecting units.

[0050] The template unit is a circular template 8, which includes two symmetrically arranged semicircular templates. The two semicircular templates are connected at the joints by hinges, and the hinge connection is fixed by pins.

[0051] Each rod positioning unit includes a support rod and a square limiting body 2 provided at the top of the support rod. Threaded holes that are skew and orthogonal to each other are provided on each square limiting body 2.

[0052] The tower foundation 1 is a frustum structure, and the number of rod positioning units is four and they are evenly distributed on the side wall of the frustum structure in a circumferential manner.

[0053] The connecting unit is a positioning screw 5; the support rods of each rod positioning unit are fixed on the outer wall of the tower foundation 1, and the square limiting bodies 2 of two adjacent rod positioning units are connected by a positioning screw 5 passing through the corresponding threaded holes and locked by a nut 6.

[0054] Embodiment 4

[0055] As Figures 1 to 7 shown, this embodiment provides a concrete pouring formwork system for the protection cap of an overhead transmission line tower, which includes a tower foundation 1, a protection cap formwork provided on the tower foundation 1, and a positioning component for positioning the protection cap formwork. The positioning component includes a plurality of detachably connected rod positioning units, a connecting unit is provided between two adjacent rod positioning units, and the protection cap formwork is located in the limiting space surrounded by the connecting unit.

[0056] The formwork unit is a square formwork 7;

[0057] The tower foundation 1 is a frustum structure, and the number of rod positioning units is four and they are evenly distributed on the side wall of the frustum structure in a circumferential manner; each rod positioning unit includes a support rod and a square limiting body 2 provided at the top of the support rod. Threaded holes that are skew and orthogonal to each other are provided on each square limiting body 2, and the connecting unit is a positioning screw 5; the support rods of each rod positioning unit are fixed on the outer wall of the tower foundation 1, and the square limiting bodies 2 of two adjacent rod positioning units are connected by a positioning screw 5 passing through the corresponding threaded holes and locked by a nut 6;

[0058] Each positioning screw 5 is parallel to a corresponding side surface of the square formwork 7.

[0059] Specifically, a portable positioning system composed of a positioning screw 5 and a limiting body is designed, which is applicable to a square formwork 7 and a circular formwork 8, firmly fixes the formwork at a specific position on the top surface of the tower foundation 1, ensures the protective layer thickness of the anchor bolts and tower foot plates, avoids sliding during the pouring process, and ensures the pouring quality.

[0060] Embodiment 5

[0061] This embodiment is further optimized on the basis of Embodiment 4. Specifically:

[0062] In one embodiment, two L-shaped pads 3 are provided at different positions inside each square limiting body 2, and a backing plate is provided inside the two L-shaped pads 3 with the same height of two adjacent square limiting bodies 2.

[0063] Specifically, for the square template 7, the L-shaped pads 3 and the backing plate are designed so that the positioning system can position square templates 7 made of various materials, realizing the applicability of the positioning system to the square template 7 and being compatible with square templates 7 made of various simple construction materials.

[0064] Each backing plate is in contact with one side surface of the corresponding square template 7.

[0065] The semi-circular template is made of PVC lightweight material.

Claims

1. A concrete pouring formwork system for an overhead transmission line tower protective cap, characterized in that: The invention comprises an iron tower foundation (1), a protective cap template arranged on the iron tower foundation (1), and a positioning assembly for positioning the protective cap template, wherein the positioning assembly comprises a plurality of detachably connected rod positioning units, a connecting unit is arranged between two adjacent rod positioning units, and the protective cap template is located in a limited space surrounded by the connecting units.

2. The concrete pouring formwork system for overhead power transmission line tower protection cap according to claim 1 is characterized in that: The protective cap template comprises at least a plurality of template units, and two adjacent template units are plug-fitted.

3. The concrete pouring formwork system for overhead power transmission line tower protection cap according to claim 2 is characterized in that: The template unit is a circular template (8), and the circular template (8) comprises two symmetrically arranged semicircular templates. The two semicircular templates are connected at the joints by hinges, and the hinge connection is fixed by a latch.

4. The concrete pouring formwork system for overhead power transmission line tower protection cap according to claim 3 is characterized in that: Each of the rod positioning units comprises a support rod and a square limiting body (2) arranged on the top of the support rod, and each of the square limiting bodies (2) is provided with threaded holes that are skewed and orthogonal to each other.

5. The concrete pouring formwork system for overhead power transmission line tower protection cap according to claim 4, characterized in that: The iron tower foundation (1) is a truncated cone structure, and the number of the rod positioning units is four and they are evenly distributed on the side wall of the truncated cone structure along the circumference.

6. The concrete pouring formwork system for overhead power transmission line tower protection cap according to claim 5, characterized in that: The connection unit is a positioning screw (5); the support rod of each rod positioning unit is fixed on the outer wall of the tower foundation (1); the square limit bodies (2) of two adjacent rod positioning units are connected by the positioning screw (5) passing through the corresponding threaded holes and are locked by a nut (6).

7. The concrete pouring formwork system for overhead power transmission line tower protection cap according to claim 2, characterized in that: The template unit is a square template (7); The iron tower foundation (1) is a truncated cone structure, the number of the rod positioning units is four and they are evenly distributed on the side wall of the truncated cone structure according to the circumference; each of the rod positioning units comprises a support rod and a square limiting body (2) arranged on the top of the support rod, each of the square limiting bodies (2) is provided with threaded holes that are skewed and orthogonal to each other, and the connecting unit is a positioning screw (5); the support rod of each of the rod positioning units is fixed on the outer wall of the iron tower foundation (1), and the square limiting bodies (2) of two adjacent rod positioning units are connected by the positioning screws (5) passing through the corresponding threaded holes and are locked by nuts (6); Each positioning screw (5) is parallel to a corresponding side surface of the square template (7).

8. The concrete pouring formwork system for overhead power transmission line tower protection cap according to claim 7, characterized in that: Two L-shaped cushion blocks (3) are arranged at different positions on the inner side of each of the square limiting bodies (2), and cushion plates are arranged on the inner sides of the two L-shaped cushion blocks (3) of the same height of two adjacent square limiting bodies (2).

9. The concrete pouring formwork system for overhead power transmission line tower protection cap according to claim 8, characterized in that: Each of the pads is in contact with a side surface of the corresponding square template (7).

10. The concrete pouring formwork system for overhead power transmission line tower protection cap according to claim 3, characterized in that: The semicircular template is made of PVC light material.

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