Cast-in-place free firewood flue formwork erecting structure

Abstract

The utility model discloses a cast-in-place free firewood-foaming flue formwork erecting structure which comprises a plurality of formwork pipe joints which are sequentially connected from bottom to top in the height direction, and aluminum alloy formworks are arranged on the peripheries of the outer portions of the formwork pipe joints in a surrounding mode. The aluminum alloy formworks arranged in the surrounding mode and the formwork pipe joints are arranged at intervals and jointly form a flue pouring space, flue structural steel bars are arranged in the flue pouring space, and a plurality of opposite-pull screw sets are jointly connected to the aluminum alloy formworks arranged in the surrounding mode and the formwork pipe joints. The aluminum alloy formwork arranged in a surrounding mode is fixed to the outer side face of the flue structural steel bar through a plurality of opposite-pull screw sets. The formwork pipe joints replace an inner formwork in a traditional formwork system, the stability of erecting of the free-air firewood-foaming flue formwork is guaranteed, the free-air firewood-foaming flue is formed through one-time construction along with a main body structure, and after pouring construction of the free-air firewood-foaming flue is completed, the formwork pipe joints are not detached, and the free-air firewood-foaming flue can be used as an internal component of the free-air firewood-foaming flue; and long-time edge high-altitude operation is not needed.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a cast-in-place air-fired smoke duct template supporting structure. Background Art

[0002] With the development of the construction market, the shapes of houses are diverse, and many smoke ducts or pipe shafts facing the air will appear on the periphery of the building. The pipe shaft space in this area is small and closed on all sides. It is difficult to support the double-sided formwork of the wall using traditional formwork methods, and the formwork on the inside of the pipe shaft cannot be removed after pouring. If it is not removed, the air permeability requirements of the pipe shaft cannot be met.

[0003] At present, the construction of air-fired diesel flues mostly uses prefabricated concrete finished flues for secondary installation and on-site construction. The concrete flues have a large weight and are difficult to transport and hoist. There is a high safety risk in working on the edge. They are only suitable for flue installation inside buildings. During installation, the operating frame and protective frame must be re-erected at the installation location, which makes construction difficult.

[0004] Therefore, there is an urgent need for a cast-in-place air-fired smoke duct template support structure to solve the above-mentioned technical problems. Utility Model Content

[0005] The utility model aims to solve the above-mentioned problems, thereby providing a cast-in-place formwork supporting structure for an air-fired smoke duct, in which the formwork pipe sections replace the inner formworks in the traditional air-fired smoke duct formwork system, which not only ensures the stability of the formwork supporting of the air-fired smoke duct, but also enables the air-fired smoke duct to be formed at one time along with the main structure. After the pouring construction of the air-fired smoke duct is completed, the formwork pipe sections are not removed and can be used as internal components of the air-fired smoke duct. There is no need to perform high-altitude operations near the edge for a long time, thereby ensuring the safety of on-site construction.

[0006] The utility model solves the above problems and adopts the following technical solutions:

[0007] A cast-in-place formwork support structure for an air-fired diesel-fired flue, characterized in that it comprises a plurality of formwork pipe segments, the plurality of formwork pipe segments are sequentially connected from bottom to top along the height direction, an aluminum alloy formwork is arranged around the outside of the formwork pipe segment, the enclosed aluminum alloy formworks are spaced from the formwork pipe segment and together form a flue casting space, flue structural steel bars are arranged in the flue casting space, a plurality of tension screw groups are commonly connected to the enclosed aluminum alloy formwork and the formwork pipe segment, the enclosed aluminum alloy formwork is fixed to the outer side of the flue structural steel bars by the plurality of tension screw groups; the formwork pipe segment comprises a pipe segment body with a square cross section and a hollow interior, a plurality of pipe segment support rods are arranged in the pipe segment body, the plurality of pipe segment support rods are vertically fixed on two inner wall surfaces opposite to each other inside the pipe segment body, the plurality of pipe segment support rods are sequentially spaced from bottom to top along the height direction of the pipe segment body, and two pipe segment support rods adjacent to each other above and below are cross-arranged.

[0008] As a preferred embodiment, a further technical solution of the utility model is:

[0009] Preferably, connecting plates are fixed on both ends of the pipe segment support rod, and both connecting plates are fixed on the inner wall surface of the pipe segment body.

[0010] Preferably, a connecting assembly is installed between two adjacent upper and lower template pipe sections, and the connecting assembly includes a connecting ear plate, which is fixed to the middle of the four outer wall surfaces of the lower end of the upper template pipe section, and through holes corresponding to the four connecting ear plates are provided at the upper end of the lower template pipe section, and connecting rods are inserted into the two opposite connecting ear plates, and the connecting rods are inserted into the two opposite through holes, and fastening nuts are threadedly connected to both ends of the connecting rods.

[0011] Preferably, the connecting assembly further comprises a supporting rod, which is enclosed and fixed on the inner wall surface of the upper end of the lower template pipe section, and the lower end of the lower template pipe section abuts against the enclosed supporting rod.

[0012] Preferably, a plurality of gripping bolts are evenly distributed on the outer wall surface of the template pipe segment. The gripping bolts are mushroom-shaped, wider at the top and narrower at the bottom, and the lower ends of the gripping bolts are vertically fixed on the outer wall surface of the template pipe segment.

[0013] Preferably, the tension screw groups are arranged in sequence from bottom to top along the height direction of the template pipe section, and the two adjacent tension screw groups are arranged in a cross shape; the tension screw groups include tension screws and PVC sleeves, one end of the PVC sleeve passes through the flue casting space, the flue structural steel bars and the template pipe section in sequence from one side of the enclosed aluminum alloy template, and comes out from the other side of the enclosed aluminum alloy template, and back ribs are provided above and below both ends of the PVC sleeve, which are attached to the outer surface of the aluminum alloy template, and the tension screws are inserted into the PVC sleeve and the back ribs are fixed to the outer side of the aluminum alloy template.

[0014] Compared with the prior art, the utility model adopting the above technical solution has the following outstanding features:

[0015] The utility model changes the traditional template support method of the air-fired smoke duct when supporting the template of the air-fired smoke duct, and realizes the support of the template of the air-fired smoke duct through the cooperation of the template pipe section, the aluminum alloy template and the tension screw group; the template pipe section replaces the inner template in the traditional air-fired smoke duct template system, which not only ensures the stability of the template support of the air-fired smoke duct, but also enables the air-fired smoke duct to be formed at one time with the main structure. The length and size of the template pipe section can be customized in the factory according to the floor height and the size of the air-fired smoke duct, and it can be installed as a whole on site, without the need for secondary construction of the air-fired smoke duct, which solves the difficulties in secondary construction of the air-fired smoke duct, uncontrollable quality and safety risks high technical problems; at the same time, the molding quality of the air-fired smoke duct is improved through the template pipe section, and the template of the air-fired smoke duct only needs to be simply spliced ​​during construction, which increases the technical operability of the air-fired smoke duct, and there is no need to carry out high-altitude operations near the edge for a long time, thus ensuring the safety of on-site construction; in addition, the template pipe section is used as the inner template of the air-fired smoke duct before construction, and it will not be removed after construction and is also used as an internal component of the air-fired smoke duct, which solves the technical problem that the inner side of the air-fired smoke duct cannot be supported by the template, and there is no need to install additional pipes inside the air-fired smoke duct, which can better adapt to on-site construction and can be effectively used in construction sites such as flues or pipe shafts. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the finished product structure of the utility model of the air-fired diesel smoke duct;

[0018] Figure 3 It is a schematic diagram of the connection structure of two template pipe sections adjacent to each other in the upper and lower parts of the utility model;

[0019] In the figure: 1. Formwork pipe section; 2. Aluminum alloy formwork; 3. Tie screw group; 4. Pipe section body; 5. Pipe section support rod; 6. Connecting plate; 7. Connecting assembly; 8. Connecting ear plate; 9. Through hole; 10. Connecting rod; 11. PVC casing; 12. Back rib; 13. Tie screw; 14. Flue casting space. DETAILED DESCRIPTION

[0020] The following description of the embodiments will help the public better understand the present invention, but the specific embodiments given by the applicant cannot and should not be regarded as limitations on the technical solution of the present invention. Any changes to the definitions of components or technical features and / or formal rather than substantive changes to the overall structure should be regarded as the scope of protection defined by the technical solution of the present invention.

[0021] See also Figures 1 to 3 As shown, the technical solution of the utility model is as follows:

[0022] A cast-in-place formwork support structure for a diesel-fired flue gas duct, characterized in that it comprises a plurality of formwork tube segments 1, the plurality of formwork tube segments 1 are sequentially connected from bottom to top along the height direction, an aluminum alloy formwork 2 is arranged around the outside of the formwork tube segment 1, the enclosed aluminum alloy formwork 2 is spaced from the formwork tube segment 1 and together forms a flue casting space 14, a flue structural steel bar is arranged in the flue casting space 14, a plurality of tension screw rod groups 3 are commonly connected to the enclosed aluminum alloy formwork 2 and the formwork tube segment 1, the enclosed aluminum alloy formwork 2 is fixed to the outer side of the flue structural steel bar by the plurality of tension screw rod groups 3, and the aluminum alloy formwork 2 is fixed by the tension screw rod groups 3 to prevent the expansion mold from leaking during the casting process of the diesel-fired flue gas duct; the formwork tube segment 1 comprises a cross section of A square pipe segment body 4 with a hollow interior is formed by enclosing and splicing steel plates. A plurality of pipe segment struts 5 are arranged in the pipe segment body 4. The pipe segment struts 5 are all square tubes, and the number, specifications and spacing between two adjacent pipe segment struts 5 are determined according to actual construction requirements. Connecting plates 6 are welded to both ends of the pipe segment struts 5. The two connecting plates 6 are welded to two inner wall surfaces opposite to each other inside the pipe segment body 4. A plurality of pipe segment struts 5 are arranged in sequence from bottom to top along the height direction of the pipe segment body 4, and two adjacent pipe segment struts 5 are arranged in a cross shape; thereby reinforcing the four side walls of the pipe segment body 4, which is also beneficial to dispersing the force to avoid excessive concentration of force causing the side walls to be concave and improve the molding quality of the hard air-fired wood smoke duct.

[0023] A connecting assembly 7 is installed between two adjacent template pipe sections 1. The connecting assembly 7 includes a connecting ear plate 8. The connecting ear plate 8 is a steel plate with a socket. The connecting ear plate 8 is welded to the middle of the four outer wall surfaces of the lower end of the upper template pipe section 1. A through hole 9 corresponding to the four connecting ear plates 8 is opened at the upper end of the lower template pipe section 1. Connecting rods 10 are inserted on the connecting ear plates 8 opposite to each other. The connecting rods 10 are inserted into the through holes 9 opposite to each other. Fastening nuts are threadedly connected to the two ends of the connecting rods 10. The connecting assembly 7 also includes a supporting rod. The supporting rod is a square tube. The supporting rod is welded around the inner wall surface of the upper end of the lower template pipe section 1, and the lower end of the lower template pipe section 1 abuts against the supporting rod. Therefore, the two adjacent template pipe sections 1 are connected together through the connecting assembly 7. In addition, the connection effect of the two adjacent template pipe sections 1 is improved by setting the supporting rod.

[0024] There are also a number of gripping bolts evenly distributed on the outer wall surface of the formwork pipe segment 1. The number of the gripping bolts is determined according to the actual construction requirements. The gripping bolts are mushroom-shaped, wide at the top and narrow at the bottom. The lower end of the gripping bolts is vertically welded to the outer wall surface of the formwork pipe segment 1; thereby, the gripping bolts improve the gripping force between the formwork pipe segment 1 and the concrete, thereby improving the firmness of the formwork pipe segment 1.

[0025] The tension screw groups 3 are arranged in sequence from bottom to top along the height direction of the template pipe section 1, and the two adjacent tension screw groups 3 are cross-arranged, so as to fix the aluminum alloy templates 2 facing each other; the tension screw groups 3 include tension screws 13 and PVC sleeves 11, one end of the PVC sleeve 11 passes through the flue casting space 14, the flue structural steel bars and the template pipe section 1 from one side of the enclosed aluminum alloy template 2, and the other side of the enclosed aluminum alloy template 2. Back ribs 12 that are attached to the outer surface of the aluminum alloy template 2 are arranged above and below the two ends of the PVC sleeve 11, and the tension screws 13 are inserted into the PVC sleeve 11 and fix the back ribs 12 to the outer side of the aluminum alloy template 2.

[0026] During construction, the template pipe segment 1 assembled from the factory is transported to the construction site, and the template pipe segment 1 is hoisted to the predetermined position as the main construction progresses, and the two adjacent template pipe segments 1 are connected together through the connecting assembly 7, and then the flue structure steel bars are tied to the outside of the template pipe segment 1, and the aluminum alloy template 2 is supported on the outside of the flue structure steel bars. The aluminum alloy template 2 is fixed to the outer side of the flue structure steel bars by the tension screw group 3. When the template is supported, concrete is poured into the flue pouring space. When the concrete strength reaches the construction standard, the tension screw group 3 and the aluminum alloy template 2 are removed, and the template pipe segment 1 is left in the Linkong Diesel Generator flue.

[0027] The utility model changes the traditional template support method of the air-fired smoke duct when supporting the template of the air-fired smoke duct, and realizes the support of the template of the air-fired smoke duct through the cooperation of the template pipe section 1, the aluminum alloy template 2 and the tension screw group 3; the template pipe section 1 replaces the inner template in the traditional air-fired smoke duct template system, which not only ensures the stability of the template support of the air-fired smoke duct, but also enables the air-fired smoke duct to be formed with the main structure at one time. The length and size of the template pipe section 1 can be customized in the factory according to the floor height and the size of the air-fired smoke duct, and can be installed as a whole on site, without the need for secondary construction of the air-fired smoke duct, which solves the problems of difficulty in secondary construction of the air-fired smoke duct, uncontrollable quality and safety risks. The technical problem of high risk; at the same time, the molding quality of the air-fired smoke duct is improved through the template pipe segment 1, and the template of the air-fired smoke duct only needs to simply splice the template pipe segment 1 during construction, which increases the technical operability of the air-fired smoke duct, and there is no need to perform high-altitude operations near the edge for a long time, thus ensuring the safety of on-site construction; in addition, the template pipe segment 1 is used as the inner template of the air-fired smoke duct before construction, and it will not be removed after construction and is also used as an internal component of the air-fired smoke duct, which solves the technical problem that the inner side of the air-fired smoke duct cannot be supported by the template, and there is no need to install additional pipes inside the air-fired smoke duct, which can better adapt to on-site construction and can be effectively used in construction sites such as smoke ducts or pipe shafts.

[0028] The above description is only a preferred feasible embodiment of the present utility model, and does not limit the scope of rights of the present utility model. All equivalent changes made using the contents of the present utility model specification and its drawings are included in the scope of rights of the present utility model.

Claims

1. A cast-in-place air-fired fuel duct template support structure, characterized in that: It comprises a plurality of template pipe segments, which are connected in sequence from bottom to top along the height direction; aluminum alloy templates are arranged around the outside of the template pipe segment; the enclosed aluminum alloy templates are spaced from the template pipe segment and together form a flue casting space; flue structural steel bars are arranged in the flue casting space; a plurality of tension screw groups are commonly connected to the enclosed aluminum alloy template and the template pipe segment; the enclosed aluminum alloy template is fixed to the outer side of the flue structural steel bars through the plurality of tension screw groups; the template pipe segment comprises a pipe segment body with a square cross section and a hollow interior; a plurality of pipe segment support rods are arranged in the pipe segment body; the plurality of pipe segment support rods are vertically fixed on two inner wall surfaces opposite to each other inside the pipe segment body; the plurality of pipe segment support rods are spaced in sequence from bottom to top along the height direction of the pipe segment body, and two adjacent pipe segment support rods are cross-arranged.

2. The cast-in-place air-fired fuel duct template support structure according to claim 1 is characterized in that: Connecting plates are fixed on both ends of the pipe segment support rod, and both connecting plates are fixed on the inner wall surface of the pipe segment body.

3. The cast-in-place air-fired fuel smoke duct template support structure according to claim 1 is characterized in that: A connecting assembly is installed between two adjacent upper and lower template pipe sections, and the connecting assembly includes a connecting ear plate, which is fixed to the middle of the four outer wall surfaces of the lower end of the upper template pipe section, and through holes corresponding to the four connecting ear plates are arranged at the upper end of the lower template pipe section, and connecting rods are inserted into the two opposite through holes, and the two ends of the connecting rods are threadedly connected with fastening nuts.

4. The cast-in-place air-fired fuel duct template support structure according to claim 3 is characterized in that: The connection assembly also includes a supporting rod, which is enclosed and fixed on the inner wall surface of the upper end of the lower template pipe section, and the lower end of the lower template pipe section abuts against the enclosed supporting rod.

5. The cast-in-place air-fired fuel smoke duct template support structure according to claim 1 is characterized in that: A plurality of gripping bolts are evenly distributed on the outer wall surface of the template pipe section. The gripping bolts are mushroom-shaped, wide at the top and narrow at the bottom, and the lower ends of the gripping bolts are vertically fixed on the outer wall surface of the template pipe section.

6. The cast-in-place air-fired fuel smoke duct template support structure according to claim 1 is characterized in that: The tension screw groups are arranged in sequence from bottom to top along the height direction of the template pipe section, and the two adjacent tension screw groups are arranged in a cross shape; the tension screw groups include tension screws and PVC sleeves, one end of the PVC sleeve passes through the flue casting space, the flue structural steel bars and the template pipe section from one side of the enclosed aluminum alloy template, and comes out from the other side of the enclosed aluminum alloy template. Back ribs are arranged above and below the two ends of the PVC sleeve and are attached to the outer surface of the aluminum alloy template. The tension screws are inserted into the PVC sleeve and the back ribs are fixed to the outer side of the aluminum alloy template.

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