Embedded structure for civil air defense flood gate

Abstract

The utility model relates to the technical field of civil air defense flood-proof doors, and particularly discloses a plurality of embedded structures for a civil air defense flood-proof door, the embedded structures are embedded in an embedded layer below a flood-proof door frame at intervals, the top of the embedded layer is provided with a sinking groove, and concrete slurry is filled among the sinking groove, a lower frame and the embedded structures; each embedded structure comprises a threaded rod, an inner taper sleeve, an outer taper sleeve and a fastening bolt, the upper portion of the threaded rod is in threaded connection with the inner wall of the inner taper sleeve, the connected lower portion of the threaded rod is embedded in the embedded layer below the sinking groove, the connected upper portion of the threaded rod extends into the sinking groove, the upper end of the outer taper sleeve is arranged in the lower frame of the door frame in a penetrating mode, and the lower end of the outer taper sleeve is arranged on the outer side of the inner taper sleeve in a sleeving mode. The fastening bolt penetrates through the outer taper sleeve and then is pressed downwards to adjust the matching distance between the outer taper sleeve and the inner taper sleeve. According to the embedded structure, the connection stability between the lower frame of the door frame of the flood gate and the embedded layer on the ground can be improved while the connection stability between the embedded structure and the lower frame of the door frame of the flood gate is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of civil defense and flood prevention doors, specifically a pre-embedded structure for civil defense and flood prevention doors. Background Technology

[0002] Civil defense doors are the entrances and exits of civil defense projects, and have functions such as waterproofing, fireproofing, explosion-proofing, smoke prevention, and theft prevention. Among them, flood-proof doors are mainly used to prevent floods from entering the room. They have good waterproof performance and can effectively prevent flooding. Therefore, the fixing requirements of the door frame of flood-proof doors are extremely important. Usually, embedded parts are pre-installed when pouring concrete under the door frame. However, the existing embedded structure is complex and inconvenient to install and remove. At the same time, it is not easy to adjust the level of the lower frame of the door frame. Therefore, there is an urgent need to design an embedded structure for civil defense flood-proof doors to solve the above problems. Summary of the Invention

[0003] The purpose of this utility model is to provide a pre-embedded structure for civil defense and flood prevention doors, which solves the problems of the existing pre-embedded structures being complex and inconvenient to install and remove, and also the problem that the level of the lower frame of the door frame cannot be easily adjusted.

[0004] To solve the above technical problems, this utility model provides a pre-embedded structure for a civil defense flood prevention door. The pre-embedded structure consists of several pre-embedded layers that are spaced apart and embedded in the lower part of the flood prevention door frame. A sinking groove is provided at the top of the pre-embedded layer, and concrete slurry is filled between the sinking groove, the lower frame, and the pre-embedded structure.

[0005] Each of the aforementioned embedded structures includes a threaded rod, an inner conical sleeve, an outer conical sleeve, and a fastening bolt. The upper part of the threaded rod is threadedly connected to the inner wall of the inner conical sleeve, and the lower part after connection is embedded in the embedded layer below the sinking groove. The upper part after connection extends into the sinking groove. The upper end of the outer conical sleeve passes through the lower frame of the door frame, and the lower end is fitted on the outside of the inner conical sleeve. After the fastening bolt passes through the outer conical sleeve, it is pressed down to adjust the mating distance between the outer conical sleeve and the inner conical sleeve, and to make the upper top surface of the outer conical sleeve flush with the upper top surface of the lower frame.

[0006] Furthermore, several of the pre-embedded structures are divided into two columns, and the two columns of pre-embedded structures are respectively used to fix the left and right sides of the lower frame.

[0007] Furthermore, the spacing between the two columns of the pre-embedded structures is 380mm-420mm.

[0008] Furthermore, the outer conical sleeve is provided with interconnected stepped holes and conical holes from top to bottom. The stepped holes are used to pass through the fastening bolts, and the inner cone angle of the conical holes is 30°.

[0009] Furthermore, the upper outer side of the inner conical sleeve is provided with a conical surface, the cone angle of the conical surface is 30°, the inner conical sleeve is provided with a threaded hole, the upper section of the threaded hole is threadedly connected to the threaded section of the fastening bolt, and the lower section is threadedly connected to the upper threaded section of the threaded rod. The cone angle of the conical surface is equal to the inner cone angle of the conical hole, and the height of the conical surface is less than the depth of the conical hole.

[0010] Furthermore, the threaded rod is made of HRB400 steel.

[0011] Furthermore, the outer conical sleeve is fixed to the lower frame by a fastener, which is either a fixing ring or a welding fastener.

[0012] Furthermore, the size of the lower frame is smaller than the size of the sinking trough.

[0013] Furthermore, before filling the concrete slurry, a temporary support fixture is installed between the lower frame and the sinking trough. The temporary support fixture consists of several support columns, and the sum of the heights of the support columns and the lower frame is equal to the depth of the sinking trough.

[0014] The beneficial effects of this utility model are: the pre-embedded structure of this utility model can improve the connection stability with the lower frame of the floodproof door frame, and at the same time enhance the connection stability between the lower frame of the door frame and the pre-embedded layer of the ground.

[0015] The temporary support fixtures can stabilize the upper and lower positions of the lower frame of the door frame. After the pre-embedded structure is installed, the outer cone sleeve is fixed to the contact wall of the lower frame of the floodproof door frame with fasteners, which can be welded or fixed with rings. The temporary support fixtures under the pre-embedded structure are then removed, and concrete grout is filled to improve the connection between the lower frame of the door frame and the ground, thereby improving the door frame's defensive capabilities.

[0016] The size limitations of the outer and inner conical sleeves and their matching arrangement allow the outer conical sleeve fixed to the floodgate to be installed in conjunction with the inner conical sleeve embedded in the pre-embedded layer, thereby improving the detachability between the fixed outer conical sleeve and the pre-embedded inner conical sleeve in the door frame. At the same time, the height of the conical surface is less than the depth of the conical hole, which is conducive to adjusting the height of various parts of the lower frame of the door frame to maintain the horizontal position of each part. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a final installation drawing of one of the pre-embedded structures for a civil defense and flood-proof door according to this utility model (including a front view of a partial sectional view of the lower frame of the door frame);

[0019] Figure 2 This is a partial left sectional view (end view of two rows of embedded structures) of the lower frame of the pre-embedded structure for a civil defense flood prevention door according to this utility model.

[0020] Figure 3 This is a structural diagram of the pre-embedded structure of a civil defense flood prevention door of the present invention, including the outer cone sleeve with temporary support fixtures, before installation is completed;

[0021] Figure 4 This is a structural diagram of the pre-embedded structure of a civil defense flood prevention door according to this utility model, including the outer cone sleeve with temporary support fixture, after installation.

[0022] In the figure: 1-Embedded structure, 2-Lower frame, 3-Embedded layer, 4-Temporary support fixture, 11-Threaded rod, 12-Inner conical sleeve, 13-Outer conical sleeve, 14-Fastening bolt, 31-Sunk groove, 121-Conical surface, 122-Threaded hole, 131-Stepped hole, 132-Conical hole. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In one specific embodiment of this utility model, such as Figure 1-4As shown, a pre-embedded structure for a civil defense flood-proof door is disclosed. The pre-embedded structure 1 consists of several pre-embedded layers 3 spaced apart below the flood-proof door frame. In this embodiment, the pre-embedded layer 3 is a first concrete layer. A sinkhole 31 is formed at the top of the pre-embedded layer 3. The size of the lower frame 2 is smaller than the size of the sinkhole 31. Concrete grout is filled between the sinkhole 31, the lower frame 2, and the pre-embedded structure 1. After the concrete grout is poured, a second concrete layer is formed. Temporary support fixtures 4 can be provided between the lower frame 2 and the sinkhole 31. Several temporary support fixtures 4 are provided. The support column, and the sum of the height of the support column and the lower frame 2 is equal to the depth of the sinkhole 31. The temporary support fixture 4 can stabilize the upper and lower positions of the lower frame 2 of the door frame. After the pre-embedded structure 1 is installed, the outer cone sleeve 13 and the contact wall of the lower frame 2 are fixed with fasteners, which can be welded or fixed with a fixing ring. The temporary support fixture 4 under the pre-embedded structure 1 is removed and concrete grout is filled to improve the connection between the lower frame 2 of the door frame and the ground, so as to improve the defense of the door frame.

[0025] Each embedded structure 1 includes a threaded rod 11, an inner conical sleeve 12, and an outer conical sleeve 13. The threaded rod 11 is made of HRB400 steel. The upper part of the threaded rod 11 is threaded to the inner wall of the inner conical sleeve 12, and its lower part after threading is embedded in the embedded layer 3 below the sinking trough 31. The upper part extends into the sinking trough 31. The upper end of the outer conical sleeve 13 passes through the lower frame 2 of the floodproof door frame, and the lower end is used to fit on the outside of the inner conical sleeve 12. After the inner conical sleeve 12 and the outer conical sleeve 13 are fitted together, they are tightened by fastening bolts 14. After tightening, the upper top surface of the outer conical sleeve 13 is flush with the upper top surface of the lower frame 2 of the floodproof door frame. The outer conical sleeve 13 and the lower frame 2 are fixed by fasteners. The fasteners are either fixed by a fixing ring or by welding. In this embodiment, welding is used.

[0026] The size limitation of the outer cone sleeve 13 and the inner cone sleeve 12, as well as the matching arrangement between them, allows the outer cone sleeve 13 fixed to the floodproof door to be installed in conjunction with the inner cone sleeve 12 embedded in the pre-embedded layer, thereby improving the detachability between the outer cone sleeve 13 fixed in the door frame and the pre-embedded inner cone sleeve 12.

[0027] Several pre-embedded structures 1 are divided into two columns, and the two columns of pre-embedded structures 1 are used to fix the left and right sides of the lower frame 2 of the floodproof door frame, respectively. The spacing between the two columns of pre-embedded structures 1 is 380mm-420mm.

[0028] The outer conical sleeve 13 has a stepped hole 131 and a conical hole 132 connected to each other from top to bottom. The stepped hole 131 is used to pass through the fastening bolt 14, and the inner cone angle of the conical hole 132 is 30°.

[0029] The upper outer side of the inner tapered sleeve 12 is provided with a tapered surface 121, the tapered angle of the tapered surface 121 is 30°, and the inner tapered sleeve 12 is provided with a threaded hole 122. The upper section of the threaded hole 122 is threadedly connected to the threaded section of the fastening bolt 14, and the lower section is threadedly connected to the upper threaded section of the threaded rod 11. The tapered angle of the tapered surface 121 is equal to the inner tapered angle of the tapered hole 132, and the height of the tapered surface 121 is less than the depth of the tapered hole 132.

[0030] The height of the tapered surface 121 is less than the depth of the tapered hole 132, which makes it easier to adjust the height of each part of the lower frame 2 of the door frame so as to maintain the horizontal position of each part of the lower frame 2 of the door frame.

[0031] The pre-embedded structure 1 of this utility model can improve the connection stability with the lower frame 2 of the floodproof door frame, and also enhance the connection stability between the lower frame 2 of the door frame and the pre-embedded layer 3 of the ground.

[0032] The working process of this utility model is as follows:

[0033] Installation process of embedded structures:

[0034] Several pre-embedded structures 1 are divided into two rows, and the threaded section of the upper part of the threaded rod 11 of each pre-embedded structure 1 is screwed into the threaded hole 122 of the lower part of the inner conical sleeve 12. Welding is then performed at the junction after screwing. The threaded rod 11 of the two rows of pre-embedded structures 1 and the lower part of the inner conical sleeve 12 are embedded in the lower edge of the lower frame 2 of the door frame. The lower frame 2 of the door frame is supported by a temporary support fixture 4, so that several through holes on the lower frame 2 for inserting outer conical sleeves 13 are concentric with the inner conical sleeve 12. At the same time, the lower frame 2 of the door frame is flush with the top of the pre-embedded layer 3, that is, flush with the groove opening of the recessed groove 31. After the temporary support fixture 4 and the lower frame 2 of the door frame are positioned, several outer conical sleeves 13 are fitted and installed on the inner conical sleeve 12, and the conical hole 132 of the outer conical sleeve 13 is installed on the conical surface 121 on the upper outer side of the inner conical sleeve 12.

[0035] Next, insert the fastening bolt 14 into the stepped hole 131 of the outer conical sleeve 13 and tighten the fastening bolt 14. When the stepped surface of the fastening bolt 14 on the outside is in contact with the stepped surface of the stepped hole 131, the outer conical sleeve 13 is pressed down to cooperate with the inner conical sleeve 12. Adjusting the tightness of the fastening bolt 14 adjusts the downward position of the outer conical sleeve 13, thereby adjusting the levelness of the entire upper surface of the lower frame 2 of the door frame.

[0036] After adjustment, the through hole of the lower frame 2 of each door frame is fixed to the inner cone sleeve 12 by a fastener. In this embodiment, welding is used. After welding is completed, the temporary support fixture 4 is removed from the gap between the lower frame 2 and the sinking groove 31, and concrete grout is filled into the cavity formed between the sinking groove, the lower frame and the embedded structure. The lower frame 2 of the door frame and the embedded layer 3 are cast together to improve the stability between the lower frame 2 of the door frame and the embedded layer 3, and at the same time improve the load-bearing capacity of the lower frame 2 of the door frame.

[0037] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A pre-embedded structure for a civil defense flood-proof door, characterized in that, The pre-embedded structure (1) consists of several pre-embedded layers (3) that are intermittently embedded below the floodgate frame. The top of the pre-embedded layer (3) is provided with a sinking groove (31), and concrete slurry is filled between the lower frame (2), the sinking groove (31) and the pre-embedded structure (1). Each of the pre-embedded structures (1) includes a threaded rod (11), an inner conical sleeve (12), an outer conical sleeve (13), and a fastening bolt (14). The upper part of the threaded rod (11) is threadedly connected to the inner wall of the inner conical sleeve (12), and the lower part after connection is pre-embedded in the pre-embedded layer (3) below the sinking groove (31). The upper part after connection extends into the sinking groove (31). The upper end of the outer conical sleeve (13) passes through the lower frame (2) of the door frame, and the lower end is sleeved on the outside of the inner conical sleeve (12). After the fastening bolt (14) passes through the outer conical sleeve (13), it presses down to adjust the mating distance between the outer conical sleeve (13) and the inner conical sleeve (12), and makes the upper top surface of the outer conical sleeve (13) flush with the upper top surface of the lower frame (2).

2. The pre-embedded structure for a civil defense flood-proof door according to claim 1, characterized in that, Several of the pre-embedded structures (1) are divided into two columns, and the two columns of pre-embedded structures (1) are respectively used to fix the left and right sides of the lower frame (2).

3. The embedded structure for a civil defense flood-proof door according to claim 2, characterized in that, The spacing between the two columns of the pre-embedded structure (1) is 380mm-420mm.

4. The embedded structure for a civil defense flood-proof door according to claim 1, characterized in that, The outer conical sleeve (13) has a stepped hole (131) and a conical hole (132) connected to each other from top to bottom. The stepped hole (131) is used to pass through the fastening bolt (14), and the inner cone angle of the conical hole (132) is 30°.

5. The pre-embedded structure for a civil defense flood-proof door according to claim 4, characterized in that, The upper outer side of the inner conical sleeve (12) is provided with a conical surface (121), the cone angle of the conical surface (121) is 30°, the inner conical sleeve (12) is provided with a threaded hole (122), the upper section of the threaded hole (122) is threadedly connected to the threaded section of the fastening bolt (14), and the lower section is threadedly connected to the upper threaded section of the threaded rod (11). The cone angle of the conical surface (121) is equal to the inner cone angle of the conical hole (132), and the height of the conical surface (121) is less than the depth of the conical hole (132).

6. The embedded structure for a civil defense flood-proof door according to claim 1, characterized in that, The threaded rod (11) is made of HRB400 steel.

7. The embedded structure for a civil defense flood-proof door according to claim 1, characterized in that, The outer cone sleeve (13) is fixed to the lower frame (2) by a fastener, which is either a fixing ring or a welding fastener.

8. The embedded structure for a civil defense flood-proof door according to claim 1, characterized in that, The size of the lower frame (2) is smaller than the size of the sinkhole (31).

9. The embedded structure for a civil defense flood-proof door according to claim 1, characterized in that, Before filling the concrete slurry, a temporary support fixture (4) is installed between the lower frame (2) and the sinking trough (31). The temporary support fixture (4) consists of several support columns, and the sum of the heights of the support columns and the lower frame (2) is equal to the depth of the sinking trough (31).

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