Civil air defense door installation steel die

Abstract

The utility model discloses a civil air defense door installation steel die, relates to the field of buildings, and solves the technical problems that in the prior art, an embedded sleeve is complex in installation and fixing operation, time-consuming, labor-consuming and inaccurate in positioning. The door frame comprises an upper door frame steel plate, a left door frame steel plate and a right door frame steel plate, the upper door frame steel plate is horizontally arranged, and the left door frame steel plate and the right door frame steel plate are both perpendicular to the upper door frame steel plate; the door frame steel plate is narrower than the steel pipe length of the wall embedded sleeve; the outer side edges of the upper door frame steel plate, the left door frame steel plate and the right door frame steel plate are all provided with limiting plates which are symmetrical front and back, the limiting plates are all perpendicular to the corresponding door frame steel plates, the three limiting plates on the front side are arranged in the same vertical plane, and the three limiting plates on the rear side are also arranged in the same vertical plane; and first transverse limiting holes matched with a sleeve sealing rib structure at the central position of a wall embedded sleeve are formed in the plate surfaces of the upper door frame steel plate, the left door frame steel plate and the right door frame steel plate at intervals.

Description

Technical Field

[0001] This utility model relates to the field of construction, specifically to a steel mold for installing civil defense doors. Background Technology

[0002] In the construction industry, various types of pre-embedded sleeves for installation are common, and the application of precast concrete components has developed rapidly. Steel formwork for air-raid shelter doors is mainly used to fix the door frame position and ensure structural accuracy during pouring, requiring pre-embedded reinforcing bars for positioning. Existing installation steel formwork for horizontally fixing pre-embedded sleeves in walls has a complex structure, is inconvenient to operate, has difficulty controlling accuracy, and cannot effectively guarantee positioning, thus failing to meet actual usage requirements. Summary of the Invention

[0003] This utility model addresses the shortcomings and deficiencies of existing technologies by providing a simple and ingenious structure that is low in manufacturing cost, precise in positioning, and stable in structure. It is used for the horizontal positioning and installation of pre-embedded sleeves in walls, ensuring accurate positioning and firm formwork support. This facilitates the installation of the entire air-raid shelter door frame, saves time and effort, significantly improves the efficiency of fixing and installing pre-embedded sleeves in walls, meets practical usage needs, and ensures precise structural installation of the air-raid shelter door during the lower pouring process.

[0004] To achieve the above objectives, this utility model provides the following technical solution: The steel mold for installing air-raid shelter doors provided by this utility model is a door-shaped steel mold frame that matches the pre-installed door frame structure. It includes an upper door frame steel plate, a left door frame steel plate, and a right door frame steel plate. The upper door frame steel plate is horizontally arranged, while the left and right door frame steel plates are perpendicular to the upper door frame steel plate. The width of the door frame steel plate is less than the length of the steel pipe of the pre-embedded sleeve in the wall.

[0005] The upper door frame steel plate, the left door frame steel plate and the right door frame steel plate are all equipped with symmetrical front and rear limiting plates on the outer edges of the three types of steel plates. The limiting plates are all set perpendicular to their corresponding door frame steel plates, and the three limiting plates on the front side are set in the same vertical plane, and the three limiting plates on the rear side are also set in the same vertical plane.

[0006] The upper door frame steel plate, the left door frame steel plate and the right door frame steel plate are provided with first transverse limiting holes at intervals on the plate surface, which match the sleeve sealing rib structure at the center position of the pre-embedded sleeve in the wall. The width of the first transverse limiting hole is slightly larger than the thickness of the sleeve sealing rib.

[0007] Preferably, the limiting plates of the left and right door frame steel plates are symmetrically provided with first U-shaped mounting grooves with outer openings. The first U-shaped mounting grooves are vertically arranged, and the outer edge of the top of the grooves is provided with an inlet with an opening greater than or equal to the outer diameter of the steel pipe of the wall-embedded sleeve.

[0008] Preferably, the depth of the first U-shaped installation groove located below the inlet is greater than or equal to 1 / 2 of the outer diameter of the steel pipe of the pre-embedded sleeve in the wall.

[0009] Preferably, the first U-shaped mounting groove matches the first transverse limiting hole. When the steel pipe of the wall pre-embedded sleeve is inserted into the first U-shaped mounting groove, the side wall of the sleeve sealing rib at the center of the wall pre-embedded sleeve can be inserted into the first transverse limiting hole for limiting connection.

[0010] The sealing ribs of the sleeves at both ends of the wall pre-embedded sleeves extend out of the limiting plates on the front and rear sides of the door frame steel plate.

[0011] The length of the first transverse limiting hole is less than the outer diameter of the sleeve sealing rib.

[0012] Preferably, the upper door frame steel plate is provided with second transverse limiting holes at intervals that match the sleeve sealing rib structure at the center position of the pre-embedded sleeve in the wall. The width of the second transverse limiting holes is slightly larger than the thickness of the sleeve sealing rib.

[0013] A second U-shaped mounting groove matching the outer diameter of the steel pipe of the wall-embedded sleeve is provided at the edge of the limiting plate on the upper door frame steel plate. A second horizontal limiting hole is provided in the middle of the upper door frame steel plate between the two corresponding second U-shaped mounting grooves.

[0014] The length of the second transverse limiting hole is less than the length of the first transverse limiting hole, and also less than the radius of the sleeve sealing rib.

[0015] Preferably, a bottom frame steel plate is also connected between the bottom of the steel formwork frame of the portal structure and between the left and right door frame steel plates. The bottom frame steel plate is horizontally set and parallel to the upper door frame steel plate.

[0016] The bottom frame steel plate is wider than the top frame steel plate. Its front edge is in the same vertical plane as the front limiting plate of the top frame steel plate, and its rear edge extends beyond the rear limiting plate of the top frame steel plate. Rectangular grooves are spaced apart at the rear edge of the bottom frame steel plate.

[0017] The width of the rectangular groove is greater than the outer diameter of the reinforcing bar, but less than the outer diameter of the corresponding reinforcing bar sleeve.

[0018] Preferably, the width of the bottom door frame steel plate is twice the width of the top door frame steel plate;

[0019] The depth of the rectangular groove is 50%-60% of the width of the steel plate of the door bottom frame.

[0020] Preferably, a grouting through hole is also provided on the bottom frame steel plate between two adjacent rectangular grooves.

[0021] This utility model provides a steel mold for installing air-raid shelter doors. It has the following beneficial effects:

[0022] This utility model of a steel mold for installing civil defense doors has a simple and ingenious structure, low manufacturing cost, precise positioning, and stable structure. When used for horizontal positioning and installation of pre-embedded sleeves in walls, it ensures precise positioning and firm template support, making the installation of the entire civil defense door frame convenient, saving time and effort, significantly improving the work efficiency of fixing and installing pre-embedded sleeves in walls, meeting actual usage needs, and ensuring structural accuracy during the lower pouring. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0024] Figure 2 for Figure 1 A structural schematic diagram of the left view;

[0025] Figure 3 for Figure 1 A top view structural diagram;

[0026] Figure 4 for Figure 1 A schematic diagram of the structure of a three-dimensional image;

[0027] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0028] Figure 6 for Figure 5 A structural schematic diagram of the left view;

[0029] Figure 7 for Figure 5 A top view structural diagram;

[0030] Figure 8 for Figure 5 A structural schematic diagram of the bottom view;

[0031] Figure 9 for Figure 5 A schematic diagram of the structure of a three-dimensional image;

[0032] Figure 10 A schematic diagram of the structure for pre-embedded sleeves in the wall.

[0033] In the diagram: 1. Upper door frame steel plate, 2. Left door frame steel plate, 3. Right door frame steel plate, 4. Wall embedded sleeve, 401. Sleeve sealing rib, 402. Steel pipe, 5. Limiting plate, 6. First horizontal limiting hole, 7. First U-shaped mounting groove, 701. Inlet, 8. Second horizontal limiting hole, 9. Second U-shaped mounting groove, 10. Door bottom frame steel plate, 11. Rectangular groove, 12. Grouting through hole. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Example 1

[0037] Please see Figures 1-4 and Figure 10 This utility model provides a technical solution:

[0038] The steel mold for installing civil defense doors provided by this utility model is a door-shaped steel mold frame that matches the pre-installed door frame structure. It includes an upper door frame steel plate 1, a left door frame steel plate 2, and a right door frame steel plate 3. The upper door frame steel plate 1 is horizontally arranged, while the left door frame steel plate 2 and the right door frame steel plate 3 are both vertically arranged to the upper door frame steel plate 1. The width of the door frame steel plate is less than the length of the steel pipe 402 of the wall pre-embedded sleeve 4. The upper door frame steel plate 1, the left door frame steel plate 2, and the right door frame steel plate 3 are all provided with symmetrical front and rear limiting plates 5 at their outer edges. The limiting plates 5 are all vertically arranged to their corresponding door frame steel plates, and the three limiting plates 5 on the front side are arranged in the same vertical plane, as are the three limiting plates 5 on the rear side.

[0039] The left door frame steel plate 2 and the right door frame steel plate 3 are provided with first transverse limiting holes 6 at intervals, which match the structure of the sleeve sealing rib 401 at the center of the wall pre-embedded sleeve 4. The width of the first transverse limiting hole 6 is slightly larger than the thickness of the sleeve sealing rib 401.

[0040] Symmetrically arranged on the limiting plates 5 of the left door frame steel plate 2 and the right door frame steel plate 3 are first U-shaped mounting grooves 7 with outer openings. The first U-shaped mounting grooves 7 are vertically arranged, and at their top outer edge are inlets 701 with openings greater than or equal to the outer diameter of the steel pipe 402 of the wall-embedded sleeve 4. The depth of the first U-shaped mounting grooves 7 below the inlets 701 is greater than or equal to half the outer diameter of the steel pipe 402 of the wall-embedded sleeve 4. The first U-shaped mounting grooves 7 match the first transverse limiting holes 6. When the steel pipe 402 of the wall-embedded sleeve 4 is inserted into the first U-shaped mounting grooves 7, the side wall of the sleeve sealing rib 401 at the center of the wall-embedded sleeve 4 can be inserted into the first transverse limiting holes 6 for limiting connection; the sleeve sealing ribs 401 at both ends of the wall-embedded sleeve 4 extend out of the limiting plates 5 on the front and rear sides of the door frame steel plate. The length of the first transverse limiting hole 6 is less than the outer diameter of the sleeve sealing rib 401, further ensuring precise positioning so that the first transverse limiting hole 6 mates with the first U-shaped mounting groove 7, precisely fixing and limiting the wall-embedded sleeve 4 installed therein. This type of air-raid shelter door installation steel mold can precisely position and fix the wall-embedded sleeve 4 according to the actual required position, ensuring it remains firmly in place for a long time.

[0041] The upper door frame steel plate 1 has second transverse limiting holes 8 spaced apart on its surface, matching the structure of the sleeve sealing rib 401 at the center of the wall-embedded sleeve 4. The width of the second transverse limiting holes 8 is slightly larger than the thickness of the sleeve sealing rib 401. A second U-shaped mounting groove 9, matching the outer diameter of the steel pipe 402 of the wall-embedded sleeve 4, is located at the edge of the limiting plate 5 on the upper door frame steel plate 1. A transversely arranged second transverse limiting hole 8 is located in the middle of the upper door frame steel plate 1 between two corresponding second U-shaped mounting grooves 9. The length of the second transverse limiting hole 8 is less than the length of the first transverse limiting hole 6 and less than the radius of the sleeve sealing rib 401. After the wall-embedded sleeve 4 is installed in the second U-shaped mounting groove 9, the bottom of the sleeve sealing rib 401 at the center of the wall-embedded sleeve 4 can be precisely inserted into the second transverse limiting hole 8, achieving precise and stable installation of the wall-embedded sleeve 4 on the upper door frame steel plate 1. This saves time and effort, significantly improves installation efficiency, and meets practical usage requirements.

[0042] In practice, the operation is as follows:

[0043] The wall-embedded sleeve 4 required by this utility model consists of a galvanized steel pipe 402 and sleeve sealing ribs 401. The sleeve sealing ribs 401 are located at both ends and the center of the galvanized steel pipe 402, and are welded to the galvanized steel pipe 402 around their perimeter. When using it to tie the cavity reinforcement, the wall-embedded sleeve 4 should be accurately positioned, installed horizontally, and securely fixed.

[0044] When installing a civil defense door frame, using the steel formwork for civil defense door installation of this utility model, and horizontally installing and fixing the pre-embedded sleeve 4 in the wall to fix the position of the door frame:

[0045] After the wall pre-embedded sleeve 4 is installed in the second U-shaped mounting groove 9, the bottom of the sleeve sealing rib 401 at the center of the wall pre-embedded sleeve 4 is precisely inserted into the second horizontal limiting hole 8, so as to achieve precise and stable installation of the wall pre-embedded sleeve 4 on the upper door frame steel plate 1.

[0046] After the steel pipe 402 of the wall pre-embedded sleeve 4 is inserted into the first U-shaped installation groove 7, the side wall of the sleeve sealing rib 401 at the center of the wall pre-embedded sleeve 4 is inserted into the first transverse limiting hole 6 for limiting connection; the sleeve sealing ribs 401 at both ends of the wall pre-embedded sleeve 4 extend out of the limiting plates 5 on the front and rear sides of the door frame steel plate, and cooperate with the first U-shaped installation groove 7 through the first transverse limiting hole 6, so as to achieve precise fixing and limiting of the wall pre-embedded sleeve 4 installed therein by using the first transverse limiting hole 6 on the left door frame steel plate 2 and the right door frame steel plate 3 and the first U-shaped installation groove 7 on the corresponding limiting plate 5.

[0047] Using the steel mold for installing the civil defense door of this utility model, the wall pre-embedded sleeve 4 that needs to be fixed is precisely positioned and installed, making the entire installation operation of the wall pre-embedded sleeve 4 time-saving and labor-saving, significantly improving the installation and fixing efficiency, meeting the actual use needs, with a wide range of applications, and facilitating the next step of precise concrete pouring.

[0048] In summary, the steel mold for installing the air-raid shelter door of this utility model is used to fix the position of the door frame, position the steel bars to be pre-embedded, fix the position of the pre-embedded sleeve, and horizontally position and install the pre-embedded sleeve 4 in the wall. The positioning is accurate, the template support is firm, making the installation of the air-raid shelter door frame convenient, saving time and effort, significantly improving the work efficiency of fixing and installing the pre-embedded sleeve 4 in the wall, meeting the actual use needs, and ensuring the accuracy of the structure when pouring the lower part.

[0049] Example 2

[0050] Please see Figure 5-9 This utility model provides a technical solution:

[0051] The steel mold for installing the air-raid shelter door in this embodiment has the same structure as the steel mold for installing the air-raid shelter door in Embodiment 1. Its advantages will not be repeated here. The difference is that the steel mold for installing the air-raid shelter door in this utility model has a bottom frame steel plate 10 connected between the bottom of the door-shaped steel mold frame and the left door frame steel plate 2 and the right door frame steel plate 3. The bottom frame steel plate 10 is horizontally set and parallel to the upper door frame steel plate 1. The width of the bottom frame steel plate 10 is greater than the width of the upper door frame steel plate 1. Its front edge is located in the same vertical plane as the limiting plate 5 on the front side of the upper door frame steel plate 1. Its rear edge extends out of the limiting plate 5 on the rear side of the upper door frame steel plate 1. The rear edge of the bottom frame steel plate 10 is provided with rectangular grooves 11 spaced apart. The width of the rectangular grooves 11 is greater than the outer diameter of the reinforcing bar and less than the outer diameter of the corresponding reinforcing bar sleeve.

[0052] The width of the bottom door frame steel plate 10 is twice the width of the top door frame steel plate 1; the depth of the rectangular groove 11 is 50%-60% of the width of the bottom door frame steel plate 10. This structural design allows the ends of the reinforcing bars passing through the rectangular groove 11 to be connected via reinforcing bar sleeves and effectively and securely fastened to the bottom door frame steel plate 10. This achieves precise positioning of the reinforcing bar sleeves while ensuring that all installed reinforcing bar sleeves remain on the same horizontal straight line, making the overall bottom door frame installation and positioning accurate, saving time and effort, and significantly improving installation and fixing efficiency.

[0053] A grouting through hole 12 is also provided on the bottom frame steel plate 10 located between two adjacent rectangular grooves 11.

[0054] Specific usage process:

[0055] The bottom plate of the door frame to be installed needs to be filled with concrete. When installing the embedded components, the wall embedded sleeve 4 and the bottom embedded steel sleeve will be used for positioning, which can achieve precise and effective fixing of the four sides of the door frame.

[0056] When binding the reinforcing steel of the cavity of the wall-embedded sleeve 4, the sleeve must be accurately positioned, installed horizontally, and fixed securely. The interfaces on both sides of the sleeve cavity should meet the space requirements for construction operations.

[0057] The bottom frame of the door is fixed by connecting straight threaded bolts to the reserved interface of the top steel sleeve of the reinforcing bar. The bolts are screwed into the steel sleeve to tighten the interface between the bottom frame and the steel sleeve. After welding and fixing the upper door frame steel plate 1, the left door frame steel plate 2, the bottom door frame steel plate 10, and the right door frame steel plate 3, the horizontal position of the bottom door frame steel plate 10 can be further limited to ensure that the bottom door frame is always installed horizontally.

[0058] In summary, the steel mold for installing civil defense doors of this utility model has a simple and ingenious structure, low manufacturing cost, precise positioning, and stable structure. When used for horizontal positioning installation of the wall pre-embedded sleeve 4, the positioning is accurate and the template support is firm, making the installation of the entire civil defense door frame convenient, saving time and effort, significantly improving the work efficiency of fixing the wall pre-embedded sleeve 4, meeting actual use needs, and ensuring the structural accuracy during the lower pouring.

[0059] The above are merely embodiments of this utility model. For example, the specific dimensions can be adjusted and the materials can be cut and manufactured according to different door types, all of which can realize the installation steel mold for the air-raid shelter door of this utility model.

[0060] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A steel mold for installing a civil defense door, characterized in that, The overall structure is a door-shaped steel formwork frame that matches the pre-installed door frame structure, including an upper door frame steel plate (1), a left door frame steel plate (2), and a right door frame steel plate (3). The upper door frame steel plate (1) is horizontally arranged, and the left door frame steel plate (2) and the right door frame steel plate (3) are both vertically arranged to the upper door frame steel plate (1). The width of the door frame steel plate is less than the length of the steel pipe (402) of the wall pre-embedded sleeve (4). The upper door frame steel plate (1), the left door frame steel plate (2) and the right door frame steel plate (3) are provided with symmetrical front and rear limiting plates (5) at the outer edges of the three types of steel plates. The limiting plates (5) are all set perpendicular to their corresponding door frame steel plates, and the three limiting plates (5) on the front side are set in the same vertical plane, and the three limiting plates (5) on the rear side are also set in the same vertical plane. The upper door frame steel plate (1), the left door frame steel plate (2) and the right door frame steel plate (3) are provided with first transverse limiting holes (6) at intervals that match the sleeve sealing rib (401) structure at the center position of the wall pre-embedded sleeve (4).

2. The steel mold for installing a civil defense door according to claim 1, characterized in that, A first U-shaped mounting groove (7) with an outer opening is symmetrically provided on the limiting plate (5) of the left door frame steel plate (2) and the right door frame steel plate (3). The first U-shaped mounting groove (7) is vertically arranged, and an inlet (701) with an opening at the outer edge of its top is provided, the opening of which is greater than or equal to the outer diameter of the steel pipe (402) of the wall pre-embedded sleeve (4).

3. The steel mold for installing a civil defense door according to claim 2, characterized in that, The depth of the first U-shaped mounting groove (7) located below the inlet (701) is greater than or equal to 1 / 2 of the outer diameter of the steel pipe (402) of the wall pre-embedded sleeve (4).

4. The steel mold for installing a civil defense door according to claim 3, characterized in that, The width of the first transverse limiting hole (6) is slightly larger than the thickness of the sleeve sealing rib (401). The first U-shaped mounting groove (7) matches the first transverse limiting hole (6). When the steel pipe (402) of the wall pre-embedded sleeve (4) is inserted into the first U-shaped mounting groove (7), the side wall of the sleeve sealing rib (401) at the center of the wall pre-embedded sleeve (4) can be inserted into the first transverse limiting hole (6) for limiting connection. The sleeve sealing ribs (401) at both ends of the pre-embedded sleeve (4) in the wall extend out of the limiting plates (5) on the front and rear sides of the door frame steel plate; The length of the first transverse limiting hole (6) is less than the outer diameter of the sleeve sealing rib (401).

5. A steel mold for installing a civil defense door according to claim 2, characterized in that, The upper door frame steel plate (1) is provided with second transverse limiting holes (8) at intervals that match the sleeve sealing rib (401) structure at the center position of the wall pre-embedded sleeve (4). The width of the second transverse limiting hole (8) is slightly larger than the thickness of the sleeve sealing rib (401). A second U-shaped mounting groove (9) matching the outer diameter of the steel pipe (402) of the wall pre-embedded sleeve (4) is provided at the edge of the limiting plate (5) on the upper door frame steel plate (1). A second transverse limiting hole (8) is provided in the middle of the upper door frame steel plate (1) between the two corresponding second U-shaped mounting grooves (9). The length of the second transverse limiting hole (8) is less than the length of the first transverse limiting hole (6) and less than the radius of the sleeve sealing rib (401).

6. A steel mold for installing a civil defense door according to claim 2, characterized in that, A bottom frame steel plate (10) is also connected between the left door frame steel plate (2) and the right door frame steel plate (3) at the bottom of the door-shaped steel formwork frame. The bottom frame steel plate (10) is horizontally set and parallel to the upper door frame steel plate (1). The width of the bottom frame steel plate (10) is greater than the width of the top frame steel plate (1). Its front edge is located in the same vertical plane as the limiting plate (5) on the front side of the top frame steel plate (1), and its rear edge extends out of the limiting plate (5) on the rear side of the top frame steel plate (1). The bottom frame steel plate (10) is provided with spaced rectangular grooves (11). The width of the rectangular groove (11) is greater than the outer diameter of the reinforcing bar and less than the outer diameter of the corresponding reinforcing bar sleeve.

7. A steel mold for installing a civil defense door according to claim 6, characterized in that, The width of the bottom door frame steel plate (10) is twice the width of the upper door frame steel plate (1); The depth of the rectangular groove (11) is 50%-60% of the width of the door bottom frame steel plate (10).

8. A steel mold for installing a civil defense door according to claim 6, characterized in that, A grouting through hole (12) is also provided on the bottom frame steel plate (10) located between two adjacent rectangular grooves (11).

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