A flue duct mold

Abstract

A flue gas duct mold of the present invention comprises a base, a mold core and a module, one end of the mold core is mounted on the base, and a plurality of iron plates are installed at intervals at the other end of the mold core; a spring hook is installed on the upper part of the mold core between two of the iron plates; the cross section of the module is rectangular, and the module comprises four templates and eight splicing strips. The present invention adopts the structure of templates and splicing strips, and utilizes the first bayonet on the splicing strip to install an air-expanding shaft capsule. By inflating the air-expanding shaft capsule, adjacent templates can be spliced ​​together. At the same time, due to the oil-resistant silicone flat tube installed in the second bayonet on the splicing strip, the air-expanding shaft capsule can be isolated from the outside world, thereby avoiding the air-expanding shaft capsule from contacting the outside world and improving its service life. Since the inflation and deflation of the air-expanding shaft capsule can directly change the cross-sectional area of ​​the module, its demolding efficiency can be effectively increased.

Description

Technical Field

[0001] The invention relates to the technical field of flue processing, and more specifically, to a flue mould. Background Art

[0002] Inside a building, flues are used for ventilation and smoke exhaust. Poor exhaust or smoke exhaust will seriously affect the health of people inside the building, especially in the event of fire, gas leakage and other emergencies. Poor exhaust and smoke exhaust of the flue will directly endanger the life safety of people inside the building. Therefore, the quality of the flue is particularly important. At present, most flues are made of prefabricated concrete structures and are made using flue molds.

[0003] Existing flue molds, such as the flue mold with multiple combinations of gas expansion and contraction disclosed in Chinese patent CN209566290U, include an iron plate, a semicircular tube, an iron plate part, a spring hook, an air-expanding shaft capsule and an iron hook. The right part of the iron plate is connected to the semicircular tube, the left part of the iron plate is provided with a mold core, and the upper part of the mold core is provided with an iron hook, the middle part of the semicircular tube is provided with a spring hook, the lower part of the spring hook is provided with a main mold core, the right part of the main mold core is provided with an iron plate part, the lower part of the main mold core is provided with a base, the interior of the semicircular tube is provided with an air-expanding shaft capsule, the left part of the air-expanding shaft capsule is provided with an exhaust pipe and an inflation pipe, and the upper part of the base is connected with an adjustment screw. The flue mold with multiple combinations of gas expansion and contraction adopts the process of inflation and exhaust in a rubber tube to complete the expansion and contraction, and can be made into various types of mold cores according to needs with corresponding mold core rectangular tubes and processed iron plate parts, and can also be easily combined into different types according to the width of the template.

[0004] Although the existing mold can improve the efficiency and quality of flue processing to a certain extent, it has the following technical problems: (1) The existing gas-expanding capsule is open, which is not oil-resistant and easily damaged, and its life is seriously affected by long-term use; (2) The inner mold plate cannot be disassembled and assembled, which affects the utilization rate of the template. Summary of the invention

[0005] The invention provides a novel flue duct mould with simple structure, long service life, easy demoulding and convenient quality control, so as to solve the technical problems of short service life and inconvenient disassembly of the existing flue duct mould.

[0006] According to one aspect of the present invention, there is provided a flue gas duct mold, comprising a base, a mold core and a module, wherein one end of the mold core is mounted on the base; the cross-section of the module group is rectangular, and the module group comprises four templates and eight splicing strips, the splicing strips are mounted on both sides of the templates, and the splicing strips are provided with a first semicircular bayonet and a second U-shaped bayonet, the templates are connected by the splicing strips, and an air expansion shaft capsule is installed in the first bayonet, and an oil-resistant silicone flat tube is installed in the second bayonet; the module group is sleeved on the outside of the mold core.

[0007] Preferably, based on the above scheme, a plurality of iron plates are installed on the mold core, a retaining edge is provided on the edge of the iron plate, and mounting rods are installed on the upper and lower parts of the mold core between two of the iron plates, the mounting rods are connected by tension springs, and the templates corresponding to the left and right parts of the mold core are connected by tension springs.

[0008] Preferably, on the basis of the above scheme, a connecting rod is installed on the inner edge surface of the template close to the mold core, both ends of the connecting rod are in contact with the splicing strip, a fixing block fixed to the splicing strip is installed on one side of the connecting rod, an adjusting upper plate is installed on the other side of the connecting rod, an adjusting lower plate is installed on the adjusting upper plate, a card slot is provided on the adjusting lower plate, and the card slot cooperates with the retaining edge.

[0009] Preferably, based on the above solution, the end of the splicing strip close to the connecting rod is provided with a step surface, and the top of the fixing block extends outward to form a clamping portion, and the clamping portion is clamped and matched with the step surface.

[0010] Preferably, based on the above solution, the fixing block is provided with a connecting hole, the splicing strip is provided with a drilling hole, a screw is installed in the connecting hole, and the screw extends into the drilling hole.

[0011] Preferably, based on the above scheme, the upper adjustment plate is provided with a plurality of adjustment holes arranged at intervals, the lower adjustment plate is provided with a plurality of adaption holes, and the upper adjustment plate and the lower adjustment plate are fixed by bolts installed in the adjustment holes and the adaption holes.

[0012] Preferably, based on the above solution, an exhaust pipe and an inflation pipe are provided on the left portion of the inflatable shaft capsule.

[0013] Preferably, based on the above scheme, at least two U-shaped brackets are provided on the base, the brackets are arranged at intervals, the mold core is mounted on the brackets, and is fixed at the top of the brackets by a locking block via a screw.

[0014] Preferably, based on the above solution, the connecting rod is a rectangular tube.

[0015] Preferably, based on the above scheme, the four ends of the base are respectively provided with adjustment plates, the adjustment plates are provided with arc-shaped adjustment grooves, screws are installed in the adjustment grooves, the bottoms of the screws are fixed on the frame, and rollers are installed on the frame.

[0016] A flue gas duct mold of the present invention adopts a structure of a template and a splicing strip, and uses a gas-expanding shaft capsule installed in the first bayonet on the splicing strip. By inflating the gas-expanding shaft capsule, adjacent templates can be spliced ​​together. At the same time, due to the oil-resistant silicone flat tube installed in the second bayonet on the splicing strip, the gas-expanding shaft capsule can be isolated from the outside world, thereby preventing the gas-expanding shaft capsule from contacting the outside world and improving its service life. Since the inflation and deflation of the gas-expanding shaft capsule can directly change the cross-sectional area of ​​the module, the demoulding efficiency can be effectively increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the installation structure of the present invention.

[0018] Figure 2 This is a second structural schematic diagram of the present invention.

[0019] Figure 3 It is a third structural schematic diagram of the present invention.

[0020] Figure 4 It is a fourth structural schematic diagram of the present invention.

[0021] Figure 5 It is a schematic structural diagram of the splicing strip of the present invention.

[0022] Figure 6 It is a schematic diagram of a first installation structure of a template of the present invention;

[0023] Figure 7 It is a schematic diagram of a second installation structure of the template of the present invention;

[0024] Figure 8 It is a cross-sectional view of the module of the present invention. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] See also Figure 1 , and combined with Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 , Figure 8As shown, a flue gas duct mold of the present invention comprises a base 10, a mold core 11 and a module, one end of the mold core 11 is mounted on the base 10; the cross-section of the module is rectangular, and the module comprises four templates 15 and eight splicing strips 20, the splicing strips 20 are mounted on both sides of the templates 15, and the splicing strips 20 are provided with a semicircular first bayonet 21 and a U-shaped second bayonet 22, the templates 15 are connected through the splicing strips 20, and an air expansion shaft capsule 24 is installed in the first bayonet 21, and an oil-resistant silicone flat tube 25 is installed in the second bayonet 22; the module is sleeved on the outside of the mold core 11.

[0027] When in use, by utilizing the gap between the mold core 11 and the module, when the air-inflating shaft capsule 24 is in a low-pressure state, the template 15 on the module forms a minimum cross-section, and concrete mortar is injected into the gap between the mold core 11 and the module to form a flue shape. After a certain period of time, gas is blown into the air-inflating shaft capsule 24 to expand the template 15, thereby achieving the purpose of rapid demoulding.

[0028] A flue gas duct mold of the present invention adopts the structure of a template 15 and a splicing strip 20, and uses a gas-expanding shaft capsule 24 installed in a first bayonet 21 on the splicing strip 20. By inflating the gas-expanding shaft capsule 24, adjacent templates 15 can be spliced ​​together. At the same time, due to the oil-resistant silicone flat tube 25 installed in the second bayonet 22 on the splicing strip 20, the gas-expanding shaft capsule 24 can be isolated from the outside world, thereby preventing the gas-expanding shaft capsule 24 from contacting the outside world and improving its service life. Since the inflation and deflation of the gas-expanding shaft capsule 24 can directly change the cross-sectional area of ​​the module, the demolding efficiency can be effectively increased.

[0029] like Figure 2 and Figure 3 As shown, in order to ensure the dimensional accuracy of the processed flue, the present invention installs multiple iron plates 13 on the mold core, and the edges of the iron plates 13 are provided with retaining edges. Mounting rods 12 are installed on the upper and lower parts of the mold core between the two iron plates 13. The mounting rods 12 are connected by tension springs (not shown in the figure), and the templates 15 corresponding to the left and right parts of the mold core are connected by tension springs (not shown in the figure).

[0030] Before and after the mortar is injected, the tension spring (not shown) is in a natural state as a whole. When the air-inflating shaft capsule 24 expands, the tension spring (not shown) is in a stretched state. When the air-inflating shaft capsule 24 is deflated, the template 15 automatically rebounds under the force of the tension spring (not shown), thereby restoring the template to its original state. This makes it more convenient to use and can effectively ensure that the template 15 and the mold core are always in a fixed relative position, thereby ensuring the size of the flue.

[0031] See also Figure 6 and Figure 7As shown, the present invention is provided with a connecting rod 26 on the inner edge surface of the template 15 close to the mold core 11-side, and the two ends of the connecting rod 26 are in contact with the splicing strip 20, and a fixing block 27 fixed to the splicing strip 20 is installed on one side of the connecting rod 26, and an adjusting upper plate 30 is installed on the other side of the connecting rod 26, and an adjusting lower plate 32 is installed on the adjusting upper plate 30, and a card slot 34 is provided on the adjusting lower plate 32, and the card slot 34 cooperates with the retaining edge. By matching the structures of the adjusting upper plate 30 and the adjusting lower plate 32, different adjusting upper plates 30 can be replaced according to different product needs to meet different processing needs, and the use is more urgent, convenient and quick. During use, due to the width of the card slot 34, the expansion size of the template can be controlled to ensure its processing accuracy.

[0032] Please continue reading Figure 7 As shown, the fixing block 27 of the present invention is provided with a connection hole, the splicing strip 20 is provided with a drill hole 29, a screw is installed in the connection hole, and the screw extends into the drill hole 29. To facilitate the installation of the splicing strip 20, preferably, the present invention also provides a step surface 23 at the end of the splicing strip 20 close to the connecting rod 26, and the top of the fixing block 27 extends outward to form a clamping portion 28, and the clamping portion 28 is clamped and matched with the step surface 23. The design of the step surface 23 and the clamping portion 28 facilitates the rapid positioning and installation of the splicing strip 20 and the connecting fixing block 27.

[0033] Furthermore, the upper adjustment plate 30 of the present invention is provided with a plurality of adjustment holes arranged at intervals, and the lower adjustment plate 32 is provided with a plurality of adaption holes 33 . The upper adjustment plate 30 and the lower adjustment plate 32 are fixed by bolts installed in the adjustment holes and the adaption holes 33 .

[0034] It is worth noting that the left part of the air-inflated shaft capsule 24 is provided with an exhaust pipe and an air-inflating pipe, and at least two U-shaped brackets 40 are provided on the base 10, the brackets 40 are arranged at intervals, the mold core 11 is mounted on the brackets 40, and is fixed at the top of the bracket 40 by a locking block through a screw, and the connecting rod 26 is a rectangular tube. When in use, due to the structure of the locking block and the screw, the mold core can be limited from shaking upward when injecting concrete mortar to affect its processing.

[0035] Furthermore, the four ends of the base of the present invention are respectively equipped with adjustment plates, and the adjustment plates are provided with arc-shaped adjustment slots, and screws are installed in the adjustment slots. The bottom of the screws is fixed on the frame, and the frame is equipped with rollers. Due to the arc-shaped adjustment slots, the lateral and longitudinal movement can be limited, the relative position relationship between the module and the core is guaranteed, and the size of the processed flue is guaranteed.

[0036] When in use, various types of mold cores are made with the corresponding mold cores 11 and the processed templates 15 as needed, and a vibrator is installed in the mold core 11. A steel pipe with a vent hole and one end closed is used to put on an acid- and alkali-resistant gas-expanding shaft capsule 24 to tie the two ends firmly, and the movement is installed on the base 10. The gas-expanding shaft capsule 24 is placed in the first bayonet 21, and the two side plates are hung on the movement in turn. The spring hook 12 is hung, the height of the inner mold is adjusted, and a release agent is applied to the inner and outer molds. A wire mesh is placed, and an outer mold is installed. The inner mold is expanded by inflating through an inflation tube, and then cement mortar is injected for vibration. After the cement mortar solidifies, the exhaust pipe is opened and the inner mold shrinks. The outer mold is opened to drag out the flue gas duct and a production cycle is completed.

[0037] Finally, the method of the present application is only a preferred implementation scheme and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A flue gas duct mold, characterized in that: It includes a base, a mold core and a mold group, one end of the mold core is installed on the base; the cross-section of the mold group is rectangular, and the module group includes four templates and eight splicing strips, the splicing strips are installed on both sides of the templates, and the splicing strips are provided with a semicircular first bayonet and a U-shaped second bayonet, the templates are connected through the splicing strips, and the first bayonet is equipped with an air-expanding shaft capsule, and the second bayonet is equipped with an oil-resistant silicone flat tube; the module group is sleeved on the outside of the mold core.

2. A flue gas duct mold according to claim 1, characterized in that: A plurality of iron plates are installed on the mold core, and retaining edges are provided on the edges of the iron plates. Mounting rods are installed on the upper and lower parts of the mold core between two of the iron plates. The mounting rods are connected by tension springs, and the templates corresponding to the left and right parts of the mold core are connected by tension springs.

3. A flue gas duct mold according to claim 2, characterized in that: A connecting rod is installed on the inner edge surface of the template close to the mold core, and both ends of the connecting rod are in contact with the splicing strip. A fixing block fixed to the splicing strip is installed on one side of the connecting rod, and an adjusting upper plate is installed on the other side of the connecting rod. An adjusting lower plate is installed on the adjusting upper plate, and a slot is provided on the adjusting lower plate, which cooperates with the retaining edge.

4. A flue gas duct mold according to claim 3, characterized in that: The end of the splicing strip close to one side of the connecting rod is provided with a step surface, and the top of the fixing block extends outward to form a clamping portion, and the clamping portion is clamped and matched with the step surface.

5. A flue gas duct mold according to claim 3, characterized in that: The fixing block is provided with a connecting hole, the splicing strip is provided with a drilling hole, a screw is installed in the connecting hole, and the screw extends into the drilling hole.

6. A flue gas duct mold according to claim 3, characterized in that: The upper adjustment plate is provided with a plurality of adjustment holes arranged at intervals, the lower adjustment plate is provided with a plurality of adaption holes, and the upper adjustment plate and the lower adjustment plate are fixed by bolts installed in the adjustment holes and the adaption holes.

7. A flue gas duct mold according to claim 1, characterized in that: An exhaust pipe and an air filling pipe are arranged on the left part of the air-inflating shaft capsule.

8. A flue gas duct mold according to claim 1, characterized in that: At least two U-shaped brackets are arranged on the base, the brackets are arranged at intervals, the mold core is mounted on the brackets, and is fixed at the top of the brackets through a locking block and a screw.

9. A flue gas duct mold according to claim 3, characterized in that: The connecting rod is a rectangular tube.

10. A flue gas duct mold according to claim 1, characterized in that: The four ends of the base are respectively provided with adjustment plates, the adjustment plates are provided with arc-shaped adjustment slots, screw rods are arranged in the adjustment slots, the bottoms of the screw rods are fixed on the frame, and the frame is provided with rollers.

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