Reserved counterbore type auxiliary keel

Abstract

The utility model discloses a reserved counterbore type auxiliary keel, which comprises an auxiliary keel formed by bending and a connecting piece inserted in the space of the auxiliary keel, and is characterized in that the auxiliary keel comprises a bottom plate, the upper part of the bottom plate is bent to form two side plates, and the upper parts of the side plates are bent to form a guide plate with a guide space; the connecting piece is composed of a connecting plate and two sliding plates, the connecting piece can make contact with the upper portion of the bottom plate after being inserted into the space of the auxiliary keel, and the two sliding plates slide in the guide space respectively; a plurality of counter bores are formed between the upper portion and the lower portion of the bottom plate in a penetrating mode, a plurality of through holes are formed in the opposite sides of the side plates in a penetrating mode, and a plurality of through grooves corresponding to the counter bores are formed in the opposite sides of the connecting plates in a penetrating mode. According to the method, the transverse pre-pressing countersunk head and the pre-punching position are adopted. The hardness of the keel can be effectively improved through the transverse pre-pressing countersunk head, rivets and screws can be sunk into the keel, and therefore the flatness of the surface during installation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of secondary keels, in particular to a secondary keel with reserved countersunk holes. Background Art

[0002] The secondary keel is usually made of metal or steel to ensure sufficient strength and durability. Common materials include aluminum alloy, galvanized steel, stainless steel, etc., which have good corrosion resistance and oxidation resistance. When in use, it is fixed to the main keel or other structural components by bolts, welding or nuts. Ensure the safety and stability of the entire building structure. Although some keels have reserved holes in the prior art, due to the large number of holes, rivets may be exposed, resulting in an uneven surface. Secondly, due to the dense holes, it is easy to hit the existing holes when self-tapping, affecting the firmness of the connection. In addition, if the wall leveling requires an increased thickness, construction may become more difficult because the flatness requirements are high and construction problems are prone to occur.

[0003] The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure and therefore it may contain information that does not constitute the prior art that is already known to one of ordinary skill in the art. Utility Model Content

[0004] The utility model aims to provide a countersunk hole type auxiliary keel to solve the problems of rivets protruding outside and unevenness, self-tapping easily knocking down the hole and causing instability, and the wall leveling thickness is large and difficult to position.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a countersunk hole-preserved secondary keel, comprising a bent secondary keel and a connecting piece inserted into the secondary keel space, the secondary keel comprising a bottom plate, the top of the bottom plate is bent to form two side plates, the top of the side plate is bent to form a guide plate with a guide space; the connecting piece is composed of a connecting plate and two slide plates, the connecting piece will contact the top of the bottom plate after being inserted into the space of the secondary keel, and the two slide plates slide in the guide space respectively; a plurality of countersunk holes are penetrated between the top and bottom of the bottom plate, a plurality of through holes are penetrated on the opposite sides of the side plates, and a plurality of through grooves corresponding to the countersunk holes are penetrated on the opposite sides of the connecting plate.

[0006] Preferably, the bottom plate is composed of a U-shaped reinforcement plate and two plate bodies, and a concave-shaped space is formed between the plate body and the reinforcement plate;

[0007] Preferably, a plurality of slots are arranged in a straight line in the length direction below the reinforcing plate, a plurality of reinforcing blocks are fixedly connected to the edges of the inner walls of the slots, and the countersunk holes penetrate from the top of the reinforcing plate to the bottom of the reinforcing blocks.

[0008] Preferably, the reinforcement block is located in the space below the reinforcement plate, and the thickness of the reinforcement block is the same as the depth of the cavity of the reinforcement plate.

[0009] Preferably, the side panels are bent in the length direction to form reinforcing ribs, and the reinforcing ribs are concave from the outside of the side panels to the inside of the side panels.

[0010] Preferably, the through hole passes through the position of the reinforcing rib, and the shape of the reinforcing rib includes but is not limited to triangle, cylinder, and rectangle.

[0011] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0012] This application uses a transverse pre-stressed countersunk head and pre-drilled holes. The transverse pre-stressed countersunk head can effectively increase the hardness of the keel and allow rivets and screws to sink into it, thereby improving the flatness of the surface during installation. In addition, the two sides of the keel are pre-drilled with holes and reinforcing ribs, making it more applicable and easier to operate. The diameters of the through holes and countersunk holes in this application are both 2.8mm, so that even if the self-tapping screw is driven into the hole, it can be firmly locked to ensure the firmness and stability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the auxiliary keel and the connecting piece combination of the utility model.

[0015] Figure 2 It is a three-dimensional schematic diagram of the auxiliary keel and the connecting piece combination of the utility model.

[0016] Figure 3 It is a three-dimensional schematic diagram of the auxiliary keel of the utility model.

[0017] Description of the drawings: 1. Secondary keel; 2. Connector; 3. Bottom plate; 4. Side plate; 5. Guide plate; 6. Countersunk hole; 7. Through hole; 8. Through groove; 9. Reinforcement plate; 10. Plate body; 11. Reinforcement block; 12. Reinforcement rib DETAILED DESCRIPTION

[0018] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that the description of the present disclosure will be more comprehensive and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art.

[0019] The utility model provides Figure 1 and Figure 3 A countersunk hole-type secondary keel shown in the figure comprises a bent secondary keel 1 and a connector 2 inserted into the space of the secondary keel 1. The bent secondary keel 1 and the connector 2 inserted into the space of the secondary keel 1 have a bent structure of a bottom plate 3 and a side plate 4, which can provide uniform supporting force and enhance the overall structural strength.

[0020] The secondary keel 1 includes a bottom plate 3, the upper part of the bottom plate 3 is bent to form two side plates 4, and the upper part of the side plates 4 is bent to form a guide plate 5 with a guide space; the secondary keel 1 adopts a bent structure of the bottom plate 3 and the side plates 4, which can provide uniform supporting force and enhance the overall structural strength.

[0021] The connector 2 consists of a connecting plate and two slides. After being inserted into the space of the secondary keel 1, the connector 2 will contact the top of the bottom plate 3, and the two slides slide in the guide space respectively; the connector 2 and the guide plate 5 can be adjusted at different positions, and the same structure can be used in different application scenarios, saving the cost and time of redesign.

[0022] A plurality of countersunk holes 6 are provided between the top and bottom of the bottom plate 3, a plurality of through holes 7 are provided on the opposite side of the side plate 4, and a plurality of through slots 8 corresponding to the countersunk holes 6 are provided on the opposite side of the connecting plate. The reserved countersunk holes 6 and the through holes 7 and through slots 8 on the side plate 4 and the connecting plate make the installation and maintenance process easier. The transverse preloaded countersunk holes can effectively increase the hardness of the keel and allow rivets and screws to sink into them, thereby improving the surface flatness during installation.

[0023] In addition, the two sides of the keel are pre-punched with holes and reinforcement ribs, making it more widely applicable and easier to operate;

[0024] The diameter of the through hole 7 and the countersunk hole 6 is 2.8 mm, so that even if the self-tapping screw is driven into the hole, it can be firmly locked to ensure the firmness and stability of the connection.

[0025] The secondary keel of the present application is processed by a prefabricated machine. This machine has an efficient pressing speed and a synchronous punching speed, and does not generate noise during operation. This mechanical processing method is more energy-saving and environmentally friendly, and the operation is also easier. Therefore, it greatly improves work efficiency and makes the production process of the secondary keel more efficient and convenient.

[0026] The bottom plate 3 is composed of a "U"-shaped reinforcement plate 9 and two plate bodies 10, and a "concave"-shaped space is formed between the plate body 10 and the reinforcement plate 9; the "U"-shaped reinforcement plate 9 can provide additional support and reinforcement on the bottom plate 3, thereby enhancing the strength and stability of the entire bottom plate 3.

[0027] A plurality of slots are arranged in a straight line in the length direction below the reinforcing plate 9, and a plurality of reinforcing blocks 11 are fixedly connected at the edge of the inner wall of the slot, and the countersunk hole 6 passes through the bottom of the reinforcing block 11 from the top of the reinforcing plate 9. The fixed connection of a plurality of reinforcing blocks 11 below the reinforcing plate 9 can effectively enhance the bearing capacity and compressive resistance of the structure. The countersunk hole 6 passes through the reinforcing block 11 to form a reliable connection point, which avoids loosening or displacement of the connecting piece 2 during use and ensures the long-term stability of the structure. The provision of the reinforcing blocks 11 in the structure not only enhances the strength and stability of the local parts, but also improves the performance of the overall structure. By reasonably distributing and fixing the reinforcing blocks 11, the stress concentration phenomenon of the structure can be effectively reduced, the service life of the structure can be extended, and the maintenance cost can be reduced.

[0028] The reinforcement block 11 is located in the space below the reinforcement plate 9, and the thickness of the reinforcement block 11 is the same as the depth of the cavity of the reinforcement plate 9. The reinforcement block 11 is located in the space below the reinforcement plate 9, making full use of space resources and making the entire structure more compact. This helps to reduce the volume and size of the structure, improve space utilization, and maintain the consistency and balance of the overall structure.

[0029] The side panels 4 are bent in the length direction with reinforcing ribs 12, which are concave from the outside of the side panels 4 to the inside of the side panels 4. The provision of the reinforcing ribs 12 can provide additional support and reinforcement at the bends of the side panels 4, thereby enhancing the overall strength of the side panels 4.

[0030] The concave design of the reinforcing rib 12 can increase the rigidity and stability of the side panel 4, making the side panel 4 more uniform and stable when subjected to force.

[0031] The through hole 7 passes through the position of the reinforcing rib 12, and the shape of the reinforcing rib 12 includes but is not limited to a triangle, a cylinder, and a rectangle.

[0032] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A countersunk hole type secondary keel, comprising a bent secondary keel (1) and a connecting piece (2) inserted into the space of the secondary keel (1), characterized in that: The secondary keel (1) comprises a bottom plate (3), the top of the bottom plate (3) is bent to form two side plates (4), the top of the side plates (4) is bent to form a guide plate (5) with a guide space; the connecting member (2) is composed of a connecting plate and two slide plates, the connecting member (2) will contact the top of the bottom plate (3) after being inserted into the space of the secondary keel (1), and the two slide plates slide in the guide space respectively; a plurality of countersunk holes (6) are penetrated between the top and bottom of the bottom plate (3), a plurality of through holes (7) are penetrated on the opposite sides of the side plates (4), and a plurality of through grooves (8) corresponding to the countersunk holes (6) are penetrated on the opposite sides of the connecting plate.

2. The secondary keel with reserved countersunk holes according to claim 1, characterized in that: The bottom plate (3) is composed of a U-shaped reinforcement plate (9) and two plate bodies (10), and a concave-shaped space is formed between the plate body (10) and the reinforcement plate (9).

3. The secondary keel with reserved countersunk holes according to claim 2, characterized in that: A plurality of slots are arranged in a straight line in the length direction below the reinforcing plate (9), a plurality of reinforcing blocks (11) are fixedly connected to the edges of the inner walls of the slots, and the countersunk holes (6) extend from the top of the reinforcing plate (9) to the bottom of the reinforcing blocks (11).

4. The secondary keel with reserved countersunk holes according to claim 3, characterized in that: The reinforcing block (11) is located in the space below the reinforcing plate (9), and the thickness of the reinforcing block (11) is the same as the depth of the cavity of the reinforcing plate (9).

5. The secondary keel with reserved countersunk holes according to claim 4, characterized in that: The side plate (4) is bent in the length direction to form a reinforcing rib (12), and the reinforcing rib (12) is concave from the outside of the side plate (4) to the inside of the side plate (4).

6. The secondary keel with reserved countersunk holes according to claim 5, characterized in that: The through hole (7) passes through the position of the reinforcing rib (12), and the shape of the reinforcing rib (12) includes but is not limited to a triangle, a cylinder, and a rectangle.

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