Municipal crib formwork erecting device and municipal crib formwork

Abstract

The utility model discloses a municipal walling crib formwork device and a municipal walling crib formwork, which are used for solving the technical problems of unreliable walling crib formwork and poor forming effect in the pouring construction process of a municipal road inspection well walling crib formwork in the prior art, and belongs to the technical field of formwork construction auxiliary equipment. The municipal well ring formwork erecting device comprises an adjusting screw rod, the adjusting screw rod is in threaded connection with two adjusting threaded sleeves, a plurality of supporting rods are evenly distributed and hinged to the peripheries of the adjusting threaded sleeves, the supporting rods, in the same direction, of the two adjusting threaded sleeves are jointly hinged to an anti-sliding inner supporting plate, one of the two adjusting threaded sleeves is a right-hand thread, and the other of the two adjusting threaded sleeves is a left-hand thread. The other thread is a left-hand thread; the municipal walling crib formwork comprises a flexible formwork body, supporting plate clamping grooves are formed in the inner side of the flexible formwork body, the positions of the supporting plate clamping grooves correspond to anti-sliding inner supporting plates in a one-to-one mode, an inserting groove is formed in one end of the flexible formwork body, an inserting head is arranged at the other end of the flexible formwork body, and the flexible formwork body is round after the inserting head and the inserting groove are connected.

Description

Technical Field

[0001] The utility model belongs to the technical field of auxiliary equipment for formwork construction, and relates to in-situ cast manhole rings for municipal inspection wells. Specifically, it is a formwork device for municipal manhole rings and a formwork for municipal manhole rings. Background Art

[0002] At present, during the construction of municipal road inspection wells, there are often problems in the in-situ cast manhole ring formwork, such as formwork displacement, formwork deformation, unreliable support, formwork running and bulging, and irregular shaped formed manhole rings, poor appearance quality, and difficult size control. Operators generally use simple circular barrels as formwork at the wellhead, such as circular iron sheets, plastic barrels, and short round pipes, and generally fill bricks or erect and weld steel pipes, steel bars, etc. inside as formwork supports. Such formwork devices are difficult to install, have poor formwork effects, a small scope of application, are prone to deformation, have a low turnover rate, and are difficult to demolish completely, easily damaging the finished product quality. This not only wastes time and labor, has a poor overall effect, and a long construction period, but may also directly cause quality defects such as poor installation of manhole covers, poor paving quality of the road surface, height difference between the manhole cover and the paving, and subsidence of the road surface around the inspection well, thus affecting the overall effect of the entire municipal road project. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a formwork device for municipal manhole rings and a formwork for municipal manhole rings, which are used to solve the technical problems of unreliable formwork support and poor forming effect during the formwork pouring construction of manhole rings in municipal road inspection wells in the prior art.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A formwork device for municipal manhole rings includes adjusting screws, and two adjusting threaded sleeves are threadedly connected to the adjusting screws. A plurality of support rods are evenly distributed and hinged on the outer circumference of the adjusting threaded sleeves. The support rods in the same direction of the two adjusting threaded sleeves are jointly hinged to an anti-slip inner support plate. One of the two adjusting threaded sleeves has a right-handed thread, and the other has a left-handed thread.

[0006] During application, by rotating the adjusting screw, the two adjusting threaded sleeves will move towards or away from each other. During the movement, the anti-slip inner support plate supports on the inner side of the formwork, forming a support for the formwork.

[0007] Further preferably, a handle for rotating the adjusting screw is provided at the top of the adjusting screw.

[0008] Further preferably, the anti-slip inner support plate is an arc-shaped steel plate, and the arc-shaped steel plate is wrapped with an anti-slip rubber pad.

[0009] A municipal well ring formwork used in conjunction with the above formwork support device, including a flexible formwork. A support plate slot is provided inside the flexible formwork, and the positions of the support plate slots correspond to the anti-slip inner support plates one by one. One end of the flexible formwork is provided with a slot, and the other end is provided with a plug. After the plug and the slot are connected, the flexible formwork is circular.

[0010] During application, the anti-slip inner support plates of the formwork support device are stuck in the support plate slots to form a stable support for the inside of the flexible formwork. The slot and plug design at the head and tail of the flexible formwork can quickly make the flexible formwork support itself into a circular shape.

[0011] Further preferably, handles for moving the flexible formwork are symmetrically arranged at the top of the flexible formwork.

[0012] Further preferably, it also includes a formwork hinge. One end of the formwork hinge is a slot, and the other end is a plug. The flexible formwork can be connected alone into a circular shape, or different specifications of formwork hinges can be added to change the formwork size. The formwork hinge and the two ends of the flexible formwork are connected through slots and plugs, so as to meet different construction requirements.

[0013] Further preferably, at least three positioning clamping rods are provided at the bottom of the flexible formwork.

[0014] The utility model has the following beneficial effects:

[0015] The device has a simple structure, is convenient to process, can be reused, is convenient and labor-saving to operate, and is safe and reliable. Through the ingenious combination of the adjusting screw, the support rod and the anti-slip inner support plate of the device, a reliable support system is built for the well ring formwork. At the same time, a flexible formwork with a support plate slot is used to support the inner support plate to ensure the stability of the entire reinforcement support system. In addition, the positioning clamping rods at the bottom of the flexible formwork are used to accurately position the formwork and prevent the formwork from shifting during construction; during construction, a safety warning sign can be installed on the adjusting screw to play a safety warning role. Compared with the prior art, the formwork support device is difficult to install, has poor formwork support effect, small application range, is easy to deform, has a low turnover rate, and it is difficult to demolish the formwork completely and easily damages the finished product quality, which is time-consuming and laborious, the overall effect is poor, and the construction period is long. Seriously, it directly causes quality defects such as poor installation of manhole covers, poor pavement paving, height difference between manhole covers and paving, and subsidence of the road surface around inspection wells in the later stage, thus affecting the overall effect of the entire municipal project. This device can be reused, is environmentally friendly, efficient, convenient to operate, time-saving, labor-saving, safe and reliable, has little interference with construction, and can achieve quick and simple formwork support. It can be widely applied to the technical field of auxiliary equipment for municipal road construction and in-situ well ring formwork support construction of inspection wells. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing the embodiments that conform to the utility model, and are used together with the specification to explain the principles of the utility model.

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic diagram showing the formwork support device for the municipal well ring and the municipal well ring formwork.

[0019] Figure 2 Schematic top view showing the formwork support device for the municipal well ring and the municipal well ring formwork during operation.

[0020] Figure 3 Schematic diagram showing the plug and the socket.

[0021] In the figure: 1 - adjusting screw, 2 - handle, 3 - right - hand thread adjusting sleeve, 4 - upper strut, 5 - first inner hinge joint, 6 - anti - slip inner support plate, 7 - first outer hinge joint, 8 - left - hand thread adjusting sleeve, 9 - lower strut, 10 - second inner hinge joint, 11 - second outer hinge joint, 12 - flexible formwork, 13 - formwork hinge, 14 - socket, 15 - plug, 16 - support plate slot, 17 - handle, 18 - positioning rod, 19 - concrete well ring. Detailed implementation manners

[0022] In order to more clearly understand the above - mentioned objects, features and advantages of the present invention, the following will further describe the solutions of the present invention. It should be noted that, without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0023] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. It should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above - mentioned terms can be understood according to specific situations.

[0024] Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] The following will describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings.

[0026] A municipal well ring formwork support device includes an adjusting screw rod 1, on which two adjusting threaded sleeves are threadedly connected. A plurality of support rods are evenly distributed and hinged on the outer periphery of the adjusting threaded sleeves. The support rods of the two adjusting threaded sleeves in the same direction are jointly hinged to an anti-slip inner support plate 6. One of the two adjusting threaded sleeves has a right-handed thread and is called the right-handed adjusting threaded sleeve 3; the other has a left-handed thread and is called the left-handed adjusting threaded sleeve 8.

[0027] As Figure 1 shown, in this embodiment, the right-handed adjusting threaded sleeve 3 and the left-handed adjusting threaded sleeve 8 each have three support rods. The support rods of the right-handed adjusting threaded sleeve 3 are called upper support rods, and the support rods of the left-handed adjusting threaded sleeve 8 are called lower support rods. One end of the upper support rod 4 is connected to the right-handed adjusting threaded sleeve 3 through a first inner hinge joint 5. The other end of the upper support rod 4 is provided with an anti-slip inner support plate 6, and the upper support rod 4 and the anti-slip inner support plate 6 are connected through a first outer hinge joint 7. The lower support rod 9 and the upper support rod 4 are respectively corresponding in the same vertical plane. One end of the lower support rod 9 is connected to the left-handed adjusting threaded sleeve 8 through a second inner hinge joint 10, and the other end of the lower support rod 9 is connected to the anti-slip inner support plate 6 through a second outer hinge joint 11. The anti-slip inner support plate 6 is made of an arc-shaped steel plate wrapped with an anti-slip rubber pad, which increases the friction between the anti-slip inner support plate 6 and the flexible formwork 12, ensuring better and more uniform and reasonable force with the flexible formwork 12.

[0028] When the adjusting screw rod 1 rotates, the right-handed adjusting threaded sleeve 3 and the left-handed adjusting threaded sleeve 8 on it move synchronously towards or away from each other. The connection method between the adjusting screw rod 1 and the handle 2 can be a movable connection. The movable connection facilitates the disassembly of the handle 2, and a safety warning sign can be installed at the position where the handle 2 is installed on the adjusting screw rod 1 during the use of the formwork support device.

[0029] The formwork used in conjunction with the above-mentioned municipal well ring formwork support device is as Figures 1 - 3 shown, including a flexible formwork 12. A support plate slot 16 is arranged on the inner side of the flexible formwork 12, and the position of the support plate slot 16 corresponds to the anti-slip inner support plate 6 one by one. One end of the flexible formwork 12 is provided with a slot 14, and the other end is provided with a plug 15. After the plug 15 and the slot 14 are connected, the flexible formwork 12 forms a circle. Handles 17 for moving the flexible formwork 12 are symmetrically arranged at the top of the flexible formwork 12. It also includes a formwork hinge 13. One end of the formwork hinge 13 is a slot 14, and the other end is a plug 15. At least three positioning rods 18 are arranged at the bottom of the flexible formwork 12.

[0030] Inside the flexible formwork 12 of this embodiment, there are three stay plate slots 16 for strengthening the formwork support device to be set on the flexible formwork 12 without falling off, achieving effective connection. At the top of the flexible formwork 12, there are four handles 17 for lifting the formwork during formwork removal; inside the bottom, there are three positioning rods 18.

[0031] The flexible formwork 12 can be individually connected into a circular formwork, or the formwork size can be changed by installing formwork joints 13 of different specifications. The formwork joints 13 are connected to both ends of the flexible formwork 12 through slots 14 and plugs 15, so as to meet different construction requirements.

[0032] During use, as Figure 2 shown, before installation, first place the flexible formwork 12 vertically on the ground. The operator selects an appropriate formwork joint 13 according to the size of the concrete manhole ring 19 to be poured, and inserts the plug 15 and slot 14 of the formwork joint 13 into the slot 14 and plug 15 at both ends of the flexible formwork 12 respectively, ensuring that the flexible formwork 12 and the formwork joint 13 are firmly installed.

[0033] Then, adjust the adjusting screw 1 of the formwork support device to the vertical state, rotate the handle 2 to adjust the adjusting screw 1, and expand the upper stay rod 4 and the lower stay rod 9 until the diameter of the circle formed by the three anti-slip inner stay plates 6 is slightly smaller than the diameter of the circular formwork formed by the flexible formwork 12 and the formwork joint 13. Then, insert the formwork support device into the formwork and suspend it inside the formwork. At the same time, the operator holds the handle 2 and continues to rotate the adjusting screw 1, and firmly insert the three anti-slip inner stay plates 6 into the stay plate slots 16 on the inner side of the formwork. Continue to rotate the adjusting screw 1 until the anti-slip inner stay plates 6 completely support the inner wall of the formwork and it is difficult to rotate the adjusting screw 1.

[0034] Finally, remove the handle 2 and install a safety warning sign at the upper end of the adjusting screw 1. The safety warning sign can play a role in safety warning during the construction process. After the concrete manhole ring 19 is poured and reaches the formwork removal condition, the operator can lift the formwork support device by replacing the handle 2 and rotating the handle 2 to adjust the adjusting screw 1, and then lift the formwork by lifting the handle 17 at the top of the flexible formwork 12.

[0035] The above are only the specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Although the foregoing embodiments have been described in detail, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A municipal well ring formwork device, characterized in that: It includes an adjusting screw rod (1), and two adjusting threaded sleeves are threadedly connected to the adjusting screw rod (1). A plurality of support rods are evenly hinged to the outer periphery of each adjusting threaded sleeve. The support rods on the same side of the two adjusting threaded sleeves are jointly hinged to an anti-slip inner support plate (6). One of the two adjusting threaded sleeves has a right-handed thread, and the other has a left-handed thread.

2. The municipal well ring formwork device according to claim 1, wherein: A handle (2) for rotating the adjusting screw rod (1) is provided at the top of the adjusting screw rod (1).

3. The municipal well ring formwork device according to claim 1 or 2, characterized in that: The anti-slip inner support plate (6) is an arc-shaped steel plate, and the arc-shaped steel plate is wrapped with an anti-slip rubber pad.

4. A municipal well ring formwork, characterized in that: When used in cooperation with a municipal well ring formwork device according to any one of claims 1-3, it includes a flexible formwork (12). A support plate card slot (16) is provided inside the flexible formwork (12), and the positions of the support plate card slots (16) correspond to the anti-slip inner support plates (6) one by one. A plug slot (14) is provided at one end of the flexible formwork (12), and a plug (15) is provided at the other end. After the plug (15) and the plug slot (14) are connected, the flexible formwork (12) is circular.

5. A municipal well ring formwork according to claim 4, characterized in that: Handles (17) for moving the flexible formwork (12) are symmetrically provided at the top of the flexible formwork (12).

6. The manhole cover formwork according to claim 4, characterized in that: It further includes a formwork hinge joint (13). One end of the formwork hinge joint (13) is a plug slot (14), and the other end is a plug (15).

7. A municipal well ring formwork according to claim 4, characterized in that: At least three positioning latch rods (18) are provided at the bottom of the flexible formwork (12).

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