Novel spliced anti-theft door frame

Abstract

The utility model provides a novel spliced anti-theft door frame, which is characterized in that through pin holes are arranged at the upper ends of side plates, bolts corresponding to the pin holes are arranged at two ends of a top plate, the top plate is connected with the pin holes of the two side plates through the bolts for splicing, the bolts are bent towards one side, and the bent bolts are welded and fixed with the side plates. According to the anti-theft door frame, the mode that an original door frame plate is welded and connected through a 45-degree inclined face is changed, the side plates and the top plate of the door frame are connected through the pin holes and the plug pins in a mortise and tenon joint mode, the plug pins are bent, and then firm connection can be achieved through spot welding; according to the technical scheme, grinding is not needed or only needs one-time grinding, then rust-proof treatment is conducted, fixing operation is convenient, and accurate splicing between the side plates and the top plate can be achieved without auxiliary tools. The door frame is simple in connection mode, convenient to machine, high in production efficiency, high in structural strength, high in product yield, capable of saving production and machining cost and beneficial to application and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-theft door frames, and in particular relates to a novel spliced ​​anti-theft door frame. Background Art

[0002] The main body of the anti-theft door frame is formed into a square door frame by splicing the top plate and the two side plates. The existing conventional practice is to cut the two sides of the top plate and the upper ends of the side plates into 45-degree angles, splice them together and weld them to fix them. Full welding is required to ensure firmness, and then it is polished twice after welding. Due to the thin thickness of the plate, it is easy to cause false welding and welding through, and it is necessary to repair welding and polish again, which is time-consuming and labor-intensive, and the welding points are exposed, affecting the overall appearance of the door frame. Utility Model Content

[0003] The utility model provides a novel spliced ​​anti-theft door frame, which can effectively solve the above problems.

[0004] The utility model is achieved in this way:

[0005] A new type of spliced ​​anti-theft door frame includes side panels and a top panel. The upper ends of the side panels are provided with penetrating pin holes, and both ends of the top panel are provided with latches corresponding to the pin holes. The top panel is spliced ​​by connecting with the pin holes of the two side panels through the latches, and the latches are bent to one side, and the bent latches are welded and fixed to the side panels.

[0006] As a further improvement, at least three groups of pin holes and latches are respectively provided at both ends of the top plate.

[0007] As a further improvement, the pins at both ends of the top plate are bent in opposite directions to the pin between the two ends.

[0008] As a further improvement, the bending directions of adjacent pins on the top plate are opposite.

[0009] As a further improvement, the bending angle of the latch is 90 degrees.

[0010] As a further improvement, the edge of the latch is welded to the side plate.

[0011] As a further improvement, the bending angle of the latch is greater than 90 degrees and less than 100 degrees.

[0012] As a further improvement, the latch is welded to the opposite surface of the side plate.

[0013] As a further improvement, the side panels and the top panel are bent with mounting grooves corresponding to the door panels, and convex plates are provided at both ends of the top panel corresponding to the mounting grooves.

[0014] As a further improvement, a limiting plate is provided at the lower end of the side plate, and both ends of the limiting plate are also connected to the side plate through pin holes and latches, and the latches are bent to one side.

[0015] The beneficial effects of the utility model are as follows: the anti-theft door frame changes the original method of welding and connecting the door frame plates with a 45-degree bevel, and the side plates and the top plates of the door frame are connected by mortise and tenon joints with pin holes and latches, and the latches are bent and spot-welded to achieve a firm connection. Since the welding points are on the inner surface of the door frame, this connection method does not require grinding or only requires one grinding, and then anti-rust treatment, and the fixing operation is convenient, and the precise splicing between the side plates and the top plates can be achieved without auxiliary tools. This door frame connection method is simple, easy to process, high in production efficiency, high in structural strength, high in product yield, saves production and processing costs, and is conducive to promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram provided by an embodiment of a novel spliced ​​anti-theft door frame of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of a door frame in the prior art;

[0019] Figure 3 It is a schematic diagram of the overall structure provided by a novel spliced ​​anti-theft door frame embodiment of the utility model;

[0020] Figure 4 It is a disassembly schematic diagram provided by an embodiment of a novel spliced ​​anti-theft door frame of the utility model;

[0021] Figure 5 It is a top view of a splicing state provided by a novel splicing anti-theft door frame embodiment of the utility model;

[0022] Figure 6 It is a top view of the welding state provided by a novel spliced ​​anti-theft door frame embodiment of the utility model;

[0023] Figure 7 It is a partial enlarged schematic diagram of welding provided by a novel spliced ​​anti-theft door frame embodiment of the utility model;

[0024] Reference numerals:

[0025] Side plate 1; pin hole 11; top plate 2; latch pin 21; mounting groove 3; convex plate 4; limit plate 5. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0027] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the description of the present invention, the terms "upper", "middle", "side", "side", "upper side", "end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] Reference Figure 1-7 As shown, a new type of spliced ​​anti-theft door frame includes a side panel 1 and a top panel 2. The upper end of the side panel 1 is provided with a penetrating pin hole 11, and both ends of the top panel 2 are provided with latches 21 corresponding to the pin holes 11. The top panel 2 is spliced ​​by connecting with the pin holes 11 of the two side panels 1 through the latches 21, and the latches 21 are bent to one side, and the bent latches 21 are welded and fixed to the side panels 1.

[0030] The door frame is quickly spliced ​​together through the latch 21 on the top plate 2 and the corresponding pin hole 11 on the side plate 1. The inserted latch 21 is bent to achieve a fixed connection between the top plate 2 and the side plate 1. The bent latch 21 is further welded to prevent it from loosening.

[0031] Furthermore, at least three groups of pin holes 11 and latch pins 21 are respectively provided at both ends of the top plate 2 .

[0032] The top plate 2 and the side plate 1 are fixed at three points to form a more stable connection. Since the top plate 2 is provided with a mounting groove 3 corresponding to the door plate, the latches 21 may not be on the same plane, thus forming a more stable triangular or polygonal connection surface.

[0033] Furthermore, the bending directions of the latches 21 at both ends of the top plate 2 and the latches 21 therebetween are opposite.

[0034] Through the opposite connection method, the latch pin 21 can form a connecting tension with the side panels 1 above and below the pin hole 11 , so that a more stable and balanced connecting force is formed between the side panels 1 and the top panel 2 .

[0035] Furthermore, the bending directions of adjacent latches 21 on the top plate 2 are opposite.

[0036] The connection directions of the adjacent latch pins 21 and the side panels 1 are opposite, and the force bearing points are arranged crosswise up and down, thereby forming a larger force bearing area to prevent the side panels 1 from being deformed.

[0037] Furthermore, the bending angle of the latch pin 21 is 90 degrees.

[0038] This bending method can make the pin 21 and the side plate 1 have a better fit, but it is easy to cause damage to the pin 21 when bent; this bending method can only weld the edge of the pin 21 to the side plate 1, the welding area is small, and the edge of the pin 21 is prone to false welding and welding through problems.

[0039] Furthermore, the edge of the latch pin 21 is welded to the side plate 1 .

[0040] Furthermore, the bending angle of the latch pin 21 is greater than 90 degrees and less than 100 degrees.

[0041] This bending angle can avoid the problem of breakage at the bending position of the latch pin 21 to a certain extent, and can realize welding of the latch pin 21 and the opposite surface of the side plate 1, thereby increasing the welding area and improving the connection strength.

[0042] Furthermore, the latch pin 21 is welded to the opposite surface of the side plate 1 .

[0043] Furthermore, the side panels 1 and the top panel 2 are bent with mounting grooves 3 corresponding to the door panels, and convex plates 4 are provided at both ends of the top panel 2 corresponding to the mounting grooves 3 .

[0044] The mounting groove 3 is usually provided with a first-step mounting groove 3, a second-step mounting groove 3, or an anti-pry groove or an anti-pry edge according to the requirements of different door frames corresponding to door panels.

[0045] Furthermore, a limiting plate 5 is provided at the lower end of the side plate 1 , and both ends of the limiting plate 5 are also connected to the side plate 1 through a pin hole 11 and a latch 21 , and the latch 21 is bent to one side.

[0046] The setting of the limit plate 5 may refer to the setting of the top plate 2, or the limit plate 5 may be simply set to prevent the lower opening from expanding or being relatively squeezed, causing deformation of the door frame.

[0047] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A new type of spliced ​​anti-theft door frame, including side panels and top panels, characterized in that: The upper ends of the side plates are provided with through pin holes, and both ends of the top plate are provided with latches corresponding to the pin holes. The top plate is spliced ​​with the pin holes of the two side plates through the latches, and the latches are bent to one side, and the bent latches are welded and fixed to the side plates.

2. A novel spliced ​​anti-theft door frame according to claim 1, characterized in that: There are at least three groups of pin holes and latches at both ends of the top plate.

3. A novel spliced ​​anti-theft door frame according to claim 1 or 2, characterized in that: The latches at both ends of the top plate are bent in opposite directions to the latches between the two.

4. A novel spliced ​​anti-theft door frame according to claim 1 or 2, characterized in that: The bending directions of adjacent latches on the top plate are opposite.

5. A novel spliced ​​anti-theft door frame according to claim 1 or 2, characterized in that: The bending angle of the latch is 90 degrees.

6. A novel spliced ​​anti-theft door frame according to claim 5, characterized in that: The edge of the latch is welded to the side plate.

7. A novel spliced ​​anti-theft door frame according to claim 1 or 2, characterized in that: The bending angle of the latch is greater than 90 degrees and less than 100 degrees.

8. The novel spliced ​​anti-theft door frame according to claim 7 is characterized in that: The latch is welded to the opposite surface of the side plate.

9. The novel spliced ​​anti-theft door frame according to claim 1 is characterized in that: The side panels and the top panel are bent to form mounting grooves corresponding to the door panels, and convex plates are provided at both ends of the top panel corresponding to the mounting grooves.

10. The novel spliced ​​anti-theft door frame according to claim 1 is characterized in that: A limiting plate is provided at the lower end of the side plate, and both ends of the limiting plate are also connected to the side plate through pin holes and latches, and the latches are bent to one side.

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