Quick release type inner cylinder template

Abstract

The utility model relates to the technical field of building templates, in particular to a quick-release type inner cylinder template. The formwork comprises a plurality of formwork units capable of jointly synthesizing an annular structure, each formwork unit comprises two end formworks and a middle formwork connected between the two end formworks, a plurality of first back ridges are arranged on the inner sides of the end formworks, a plurality of second back ridges corresponding to the first back ridges one to one are arranged on the inner side of the middle formwork, and the first back ridges and the second back ridges are arranged in parallel. When the multiple formwork units define an annular structure, all the first back ridges and the second back ridges located on the same cross section of the annular structure jointly define a supporting ring. The inner sides of the end formworks and the inner sides of the middle formworks are supported through the supporting rings, and when concrete is poured, pressure borne by the formworks is transmitted to the supporting rings composed of the first back ridges and the second back ridges. In the concrete pouring process, the supporting rings can provide stable support for the formwork, symmetrical supports do not need to be erected on the inner side of the formwork, the erecting difficulty of the formwork is lowered, and the construction period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of building templates, in particular to a quick-detachable inner tube template. Background Art

[0002] Currently, during the construction of a circular shaft, an inner form is usually fixed by a supporting structure, and then concrete is poured on the outside of the inner form.

[0003] In existing technology, multiple supports are typically installed along the circumference of the inner mold to resist the lateral pressure of concrete and ensure the quality of the concrete casting. However, due to the narrow space inside the shaft and limited operating space, setting up and removing supports on the inner side of the inner mold is relatively cumbersome, resulting in a long construction period. Utility Model Content

[0004] In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide a quick-detachable inner tube template. The template structure does not require a supporting structure on the inner side of the inner template, and the template is easier to set up.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A quick-detachable inner cylinder formwork comprises a plurality of formwork units enclosed in an annular structure, wherein the formwork units comprise two end formworks and an intermediate formwork connected between the two end formworks, wherein a plurality of first back ribs are provided on the inner side of the end formworks, wherein the first back ribs are arranged horizontally and distributed vertically, and a plurality of second back ribs are provided on the inner side of the intermediate formworks corresponding to the first back ribs one by one, wherein the two ends of the second back ribs are respectively connected to the corresponding first back ribs; wherein the corresponding two first back ribs on adjacent formwork units are detachably connected, and when the plurality of formwork units are enclosed in an annular structure, all the first back ribs and second back ribs located on the same cross section of the annular structure are enclosed together to form a support ring.

[0007] By adopting the above solution, when the formwork is in use, a ring-shaped formwork structure is formed by enclosing a number of formwork units. The first back ribs and the second back ribs located on the same cross section of the ring-shaped formwork structure together enclose a support ring, and the inner side of the end formwork and the middle formwork are supported by the support ring. When pouring concrete, the pressure on the formwork is transmitted to the support ring composed of the first back ribs and the second back ribs. During the concrete pouring process, the adjacent first back ribs and the second back ribs, as well as the adjacent first back ribs and the first back ribs, are pressed tighter and tighter under the pressure of the formwork, ensuring the stability of the formwork support and providing stable support for the formwork. There is no need to set up a brace on the inner side of the inner formwork. This reduces the difficulty of setting up the formwork and shortens the construction period.

[0008] Preferably, two corresponding first back ribs on adjacent template units are connected by a connector, and both ends of the connector are connected to the corresponding first back ribs by at least one latch. The connector is connected to the first back ribs by the latch, facilitating installation and removal of adjacent first back ribs.

[0009] Preferably, the two ends of the connector are connected to the corresponding first back ribs via two latches. The two latches prevent the connector from rotating relative to the connector about one of the latches, thereby ensuring the stability of the support ring.

[0010] Preferably, a handle is provided on the side of the connector away from the end template. On the other hand, the construction workers can firmly grasp the connector through the handle, which can prevent the connector from slipping and hitting the construction workers during installation or removal, thereby reducing the risk of injury to the construction workers.

[0011] Preferably, the first back rib comprises two parallel first strips, the connector is located between the two first strips, the first strips are provided with first through holes corresponding to the latch pins, the connector is provided with second through holes corresponding to the first through holes, and the latch pins pass through both the corresponding first and second through holes. Since the connector is located between the two first strips, the latch pins act together through the corresponding two first through holes and one second through hole, thereby improving the stability of the connection between the connector and the first back rib.

[0012] Preferably, the second back rib includes two parallel second strip struts, the ends of the two adjacent and parallel second strip struts being connected by a first end plate, and the ends of the two adjacent and parallel first strip struts corresponding to the ends of the second strip struts being connected by a second end plate, and the first end plate and the corresponding second end plate being connected by a pin. Connecting the first and second end plates by the pin facilitates installation and removal of the first and second back ribs.

[0013] Preferably, a positioning member is fixedly connected between two adjacent and parallel first strip supports. The positioning member can, on the one hand, separate the two corresponding first strip supports to maintain a fixed spacing, and on the other hand, connect the two first strip supports, thereby strengthening the integrity of the two first strip supports. Similarly, the positioning members corresponding to the two second strip supports can also achieve the same effect.

[0014] Preferably, the end formwork and the intermediate formwork each include a panel, an end face sealing plate, and a side face sealing plate. The vertical ends of the panel are fixedly connected to the end face sealing plates, and the horizontal ends of the panel are fixedly connected to the side face sealing plates. Adjacent side face sealing plates are connected by pins and pins. The pins and pins connecting adjacent side face sealing plates facilitate installation and removal. Furthermore, when multiple formwork units are enclosed to form an annular structure and concrete is poured, the circumferentially contacting side face sealing plates are squeezed tighter under pressure, which not only reduces the risk of concrete seepage but also further improves the stability of the inner formwork of the annular structure.

[0015] Preferably, a plurality of vertically arranged reinforcing ribs are fixedly connected to the inner side of the panel to improve the structural stability of the template.

[0016] Preferably, the first and second strip supports are both fixedly connected to corresponding reinforcing ribs, thereby improving the connection stability between the first and second strip supports and the corresponding panels.

[0017] In summary, the quick-detachable inner cylinder template provided by the present invention has at least the following beneficial effects:

[0018] 1. The support rings provide support for the inner sides of the end and middle forms. During concrete pouring, the pressure on the formwork is transferred to the support rings formed by the first and second back ribs. During the concrete pouring process, the support rings provide stable support for the formwork, eliminating the need for symmetrical supports on the inner side of the formwork, reducing the difficulty of formwork erection and shortening the construction period.

[0019] 2. The two corresponding first back ribs on two adjacent template units are detachably connected, which facilitates the assembly and disassembly of the support ring and speeds up the construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 expending any novel work.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model when it is enclosed in a ring structure;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the template unit of the present utility model;

[0023] Figure 3This is a schematic diagram of the three-dimensional structure of two adjacent end templates connected in the utility model;

[0024] Figure 4 This is a schematic diagram of the assembly of the latch and the connector when two adjacent end templates are connected in the present invention;

[0025] Figure 5 yes Figure 4 Magnified view at point A in the middle;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the middle end template of the utility model;

[0027] Figure 7 This is the main view of the mid-end template of the utility model;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the middle template in the utility model.

[0029] The figure marks include: end template 1, middle template 2, first back rib 3, first strip support 301, first through hole 302, second end plate 303, second back rib 4, second strip support 401, first end plate 402, connector 5, second through hole 6, latch 7, handle 8, positioning member 9, panel 10, end face sealing plate 11, side sealing plate 12, first mounting hole 13, second mounting hole 14, reinforcement rib 15, reinforcement 16, pad 17, third through hole 18, third mounting hole 19. DETAILED DESCRIPTION

[0030] In order to make those skilled in the art better understand the technical solution of the utility model, Figure 1-8 The present invention is further described in detail with reference to the following specific embodiments.

[0031] See also Figure 1-8 The embodiment provides a quick-detachable inner tube formwork, comprising a plurality of formwork units enclosed in an annular structure, wherein the formwork units comprise two end formworks 1 and an intermediate formwork 2 connected between the two end formworks 1. A plurality of first back ribs 3 are provided on the inner side of the end formworks 1. The first back ribs 3 are arranged horizontally and distributed vertically, and the first back ribs 3 are fixedly connected to the end formworks 1. A plurality of second back ribs 4 corresponding to the first back ribs 3 are provided on the inner side of the intermediate formwork 2. The two ends of the second back ribs 4 are respectively connected to the corresponding first back ribs 3, and the second back ribs 4 are fixedly connected to the intermediate formwork 2. The corresponding two first back ribs 3 on adjacent formwork units are detachably connected. When a plurality of formwork units are enclosed in an annular structure, all the first back ribs 3 and second back ribs 4 located on the same cross section of the annular structure are enclosed together to form a support ring.

[0032] By adopting the above-mentioned scheme, when the formwork is in use, a ring-shaped formwork structure is formed by enclosing a number of formwork units. The first back rib 3 and the second back rib 4 located on the same cross section of the ring-shaped formwork structure together enclose a support ring, which supports the inner side of the end formwork 1 and the middle formwork 2 through the support ring. When pouring concrete, the pressure borne by the formwork is transmitted to the support ring composed of the first back rib 3 and the second back rib 4, that is, the formwork squeezes the support ring inward, and the support ring supports the formwork. During the concrete pouring process, the adjacent first back rib 3 and the second back rib 4, as well as the adjacent first back rib 3 and the first back rib 3, are pressed tighter and tighter under the pressure of the formwork, thereby ensuring the stability of the formwork support, thereby avoiding the need to set up a counter-support on the inner side of the inner formwork. This reduces the difficulty of erecting the formwork and shortens the construction period.

[0033] Please continue reading Figure 3-5 To facilitate the installation and removal of adjacent first back ribs 3, preferably, two corresponding first back ribs 3 on adjacent template units are connected by a connector 5, and the two ends of the connector 5 are connected to the corresponding first back ribs 3 by at least one latch 7. Preferably, the two ends of the connector 5 are connected to the corresponding first back ribs 3 by two first latches 7. The shape of the connector 5 can be a rectangular parallelepiped, and the material of the connector 5 can be metal.

[0034] Please continue to see 4 and Figure 5 During the formwork erection process, construction workers need to hold the connector 5 and install it in the predetermined position. During the installation process, there is a high risk of the connector 5 slipping and injuring people. Preferably, a handle 8 is provided on the side of the connector 5 away from the end formwork 1. Specifically, the handle 8 is fixedly connected to the front side of the connector 5, has an arc shape, and both ends of the handle 8 are fixedly connected to the connector 5.

[0035] See also Figure 3-6 Preferably, the first back rib 3 includes two parallel first strip struts 301, with the connector 5 positioned between the two first strip struts 301. The first strip struts 301 are provided with first through-holes 302 corresponding one-to-one with the latches 7, and the connector 5 is provided with a plurality of second through-holes 6 corresponding one-to-one with the first through-holes 302. The latches 7 pass through the corresponding first through-holes 302 and second through-holes 6 simultaneously. Specifically, the first strip struts 301 are provided with two first through-holes 302, with the first through-holes 302 on the upper and lower first strip struts 301 corresponding one-to-one, and the connector 5 is provided with four second through-holes 6.

[0036] During assembly, the two second through holes 6 on the left section of the connector 5 correspond one-to-one with the two first through holes 302 of the first strip brace 301 on the adjacent first template unit, and the latch 7 is inserted into the corresponding second through holes 6 and first through holes 302. The two second through holes 6 on the right section of the connector 5 correspond one-to-one with the two first through holes 302 of the first strip brace 301 on the adjacent second template unit, and the latch 7 is inserted into the corresponding second through holes 6 and first through holes 302. A backing plate 17 is also provided on the outside of the first strip brace 301 where the first through holes 302 are located. The backing plate 17 is provided with third through holes 18 that correspond one-to-one with the first through holes 302. The latch 7 can be vertically inserted into the corresponding third through holes 18, the first through hole 302, and the second through hole 6.

[0037] See also Figure 6 and Figure 8 Preferably, the second back rib 4 comprises two parallel second strip struts 401. Both ends of the two second strip struts 401 are fixedly connected to a first end plate 402. Two adjacent first strip struts 301 corresponding to the ends of the second back rib 4 are fixedly connected to a second end plate 303. The first end plates 402 and corresponding second end plates 303 are connected by a pin. Specifically, the first end plate 402 is provided with a first mounting hole 13 for inserting the pin, and the second end plate 303 is provided with a second mounting hole 14 corresponding to the first mounting hole 13. The pin is inserted into the corresponding first and second mounting holes 13 and 14 and locked by the pin. Pins are commonly used connectors for connecting templates in the prior art.

[0038] See also Figure 5 and Figure 7 To enhance the integrity of the two first strip struts 301 included in the first back rib 3, a positioning member 9 is preferably fixedly connected between the two adjacent and parallel first strip struts 301. Specifically, the upper and lower sides of the positioning member 9 are respectively fixedly connected to the upper and lower first strip struts 301, and the fixed connection method can specifically be welding. To enhance the integrity of the two second strip struts 401 included in the second back rib 4, a positioning member 9 can also be provided between the two adjacent and parallel second strip struts 401.

[0039] See also Figure 3 、 Figure 5 、 Figure 7Preferably, the end template 1 and the middle template 2 both include a panel 10, an end face sealing plate 11 and a side sealing plate 12. The upper and lower ends of the panel 10 are fixedly connected with the end face sealing plates 11, and the left and right ends of the panel 10 are fixedly connected with the side sealing plates 12. The side sealing plates 12 are provided with a plurality of third mounting holes 19, and the adjacent side sealing plates 12 are connected by pins and pin pieces. Specifically, during installation, the pins are inserted into the corresponding third mounting holes 19 on the two adjacent side sealing plates 12, and the pin pieces are connected to the pins, thereby connecting the two side sealing plates 12 together. The panel 10 is an arc-shaped plate, and the first strip support 301 and the second strip support 401 are both arc-shaped along the length direction to match the panel 10.

[0040] See also Figure 3 As an example, the inner side of the panel 10 is fixedly connected with a plurality of vertically arranged reinforcing ribs 15, and the reinforcing ribs 15 are evenly distributed along the transverse direction. The first strip support 301 and the second strip support 401 are both fixedly connected to the corresponding reinforcing ribs 15. Figure 5 In order to enhance the stability of the connection between the first strip support 301 and the second strip support 401 and the reinforcing rib 15, it is preferred that the outer sides of the first strip support 301 and the second strip support 401 are fixedly connected with an L-shaped reinforcement 16, and the reinforcement 16 is fixedly connected to an adjacent reinforcing rib 15.

[0041] In addition, the support ring structure of this solution can also be used for the outer formwork of hollow cylinder concrete structures or the formwork of cylindrical concrete structures that require formwork on both the inside and outside. The difference from the support ring structure of the present invention is that the support ring is arranged on the outside of the outer formwork, and the function of the support ring arranged on the outer formwork is to clamp the outer formwork. At this time, the support ring acts as a tension ring, which can also reduce the support of the outer formwork. Among them, for hollow cylinder concrete structures that require formwork on both the inside and outside, since the inner formwork is supported by the support ring and the outer formwork is clamped by the tension ring arranged on the outside of the outer formwork, there is no need to set up a brace on the inside of the inner formwork, and there is no need to set up an outer support on the outer formwork, and there is no need to set up a tension screw between the inner and outer formworks.

[0042] It should be noted that the words indicating direction in this article, such as up and down, are all based on Figure 1 The setting of the direction is only for the convenience of description and has no other specific meaning.

[0043] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the article or device comprising the aforementioned elements.

[0044] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help you understand the core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A quick-release inner cylinder template, characterized in that: The invention comprises a plurality of template units enclosing an annular structure, wherein the template units comprise two end templates (1) and an intermediate template (2) connected between the two end templates (1); a plurality of first back ribs (3) are provided on the inner side of the end template (1); the first back ribs (3) are arranged horizontally and distributed vertically; a plurality of second back ribs (4) corresponding to the first back ribs (3) are provided on the inner side of the intermediate template (2); the two ends of the second back ribs (4) are respectively connected to the corresponding first back ribs (3); wherein the corresponding two first back ribs (3) on adjacent template units are detachably connected; when the plurality of template units enclose an annular structure, all the first back ribs (3) and second back ribs (4) located on the same cross section of the annular structure are enclosed together to form a support ring.

2. A quick-release inner cylinder formwork as claimed in claim 1, characterized in that: Two corresponding first back ribs (3) on adjacent template units are connected via a connecting piece (5), and both ends of the connecting piece (5) are respectively connected to the corresponding first back ribs (3) via at least one latch (7).

3. A quick-release inner cylinder formwork as claimed in claim 2, characterized in that: The two ends of the connecting member (5) are connected to the corresponding first back ribs (3) via two latches (7).

4. A quick-release inner cylinder formwork as claimed in claim 2, characterized in that: A handle (8) is provided on the side of the connecting piece (5) away from the end template (1).

5. A quick-release inner drum formwork according to any one of claims 2 to 4, characterized in that: The first back rib (3) comprises two parallel first strip supports (301), the connecting member (5) is located between the two first strip supports (301), the first strip supports (301) are provided with first through holes (302) corresponding to the latches (7), the connecting member (5) is provided with second through holes (6) corresponding to the first through holes (302), and the latches (7) pass through the corresponding first through holes (302) and second through holes (6) at the same time.

6. A quick-release inner cylinder formwork as claimed in claim 5, characterized in that: The second back rib (4) includes two parallel second strip supports (401), the ends of the two adjacent and parallel second strip supports (401) are connected by a first end plate (402), the ends of the two adjacent and parallel first strip supports (301) and the corresponding ends of the second strip supports (401) are connected by a second end plate (303), and the first end plate (402) and the corresponding second end plate (303) are connected by a pin.

7. A quick-release inner cylinder formwork as claimed in claim 6, characterized in that: A positioning member (9) is fixedly connected between two adjacent and parallel first strip supports (301).

8. A quick-release inner drum formwork as claimed in claim 7, characterized in that: The end template (1) and the middle template (2) both comprise a panel (10), an end face sealing plate (11) and a side face sealing plate (12); both vertical ends of the panel (10) are fixedly connected to the end face sealing plate (11); both horizontal ends of the panel (10) are fixedly connected to the side face sealing plate (12); and adjacent side face sealing plates (12) are connected by pins and pin sheets.

9. A quick-release inner cylinder formwork as claimed in claim 8, characterized in that: A plurality of vertically arranged reinforcing ribs (15) are fixedly connected to the inner side of the panel (10).

10. The quick-release inner cylinder formwork according to claim 9, characterized in that: The first strip-shaped support (301) and the second strip-shaped support (401) are both fixedly connected to corresponding reinforcing ribs (15).

Images