Quickly dismountable metal door frame

Abstract

The utility model relates to metal door frame technical field, concretely is a kind of metal door frame of quick dismounting, it includes: door frame straight, the inner surface of upper and lower two ends of door frame straight is all set up with positioning slot;Door frame crosspiece, the left and right sides of door frame crosspiece are all set up with the positioning insert block compatible with positioning slot, the front and back sides of positioning insert block are respectively set up with rectangular slot and right-angle trapezoidal groove;Clamp spring piece, the inner wall between right-angle trapezoidal groove and door frame straight is located clamp spring piece.The utility model is through the cooperation of positioning insert block and positioning slot and clamp spring piece simply, can make between door frame straight and door frame crosspiece the ability of quick dismounting, facilitate the transport of staff, avoid the adverse effect brought by the whole door frame handling.

Description

Technical Field

[0001] This utility model relates to the field of metal door frame technology, specifically a metal door frame that can be quickly disassembled and assembled. Background Technology

[0002] A metal door frame is a door frame made of metal materials (such as stainless steel, aluminum alloy, etc.). It is typically fixed to a wall to support and secure the door, ensuring its proper opening and closing. Metal door frames offer good strength and stability, providing better support and protection.

[0003] Currently, traditional metal door frames are welded and assembled into a complete door frame in the factory before being shipped. However, when homeowners are renovating and replacing doors, they are often limited by the size of the elevator, which prevents the door frame from entering the elevator. They have to carry it upstairs by hand, which is very physically demanding for the workers, especially for homeowners on high floors. To address this, we propose a metal door frame that can be quickly disassembled and assembled. Utility Model Content

[0004] The purpose of this utility model is to provide a metal door frame that can be quickly disassembled and assembled. It has the advantage of quick disassembly and assembly, which solves the problem that traditional metal door frames are welded and assembled into a whole door frame in the factory before being shipped. However, when homeowners are renovating and changing doors, they are often limited by the size of the elevator, which makes it impossible for the door frame to enter the elevator. They have to carry it upstairs by hand, which consumes a lot of physical strength for the workers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a metal door frame that can be quickly disassembled and assembled, comprising:

[0006] A door frame straight section, wherein positioning slots are provided on the inner surfaces of both the upper and lower ends of the door frame straight section;

[0007] The door frame crossbar has positioning blocks adapted to the positioning slots on both its left and right sides. The positioning blocks have rectangular slots and right-angled trapezoidal slots on their front and rear sides, respectively.

[0008] A retaining spring is located between the right-angled trapezoidal groove and the inner wall of the door frame straight section.

[0009] Preferably, the number of positioning slots at one end of the door frame straight section is three.

[0010] Preferably, the width of the rectangular slot is the same as the thickness of the door frame straight section.

[0011] Preferably, the side of the retaining spring that mates with the right-angled trapezoidal groove is provided with a plurality of anti-dislodgement teeth.

[0012] Preferably, the snap ring is provided with a plurality of positioning teeth on the side near the inner wall of the door frame straight section, and one end of the positioning teeth is inclined downward.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This utility model, through the simple cooperation of positioning blocks, positioning slots, and snap rings, enables quick assembly and disassembly between the straight and horizontal sections of the door frame, facilitating transportation for workers and avoiding the adverse effects of moving the entire door frame. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the cooperation structure between the straight and horizontal bars of the door frame of this utility model.

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the cooperation structure between the door frame crossbar and the retaining spring sheet of this utility model;

[0018] Figure 4 This is a schematic diagram of the snap ring structure of this utility model.

[0019] In the diagram: 1. Door frame straight section; 101. Positioning slot; 2. Door frame cross section; 201. Positioning block; 202. Rectangular slot; 203. Right-angled trapezoidal slot; 3. Snap spring; 301. Positioning tooth; 302. Anti-detachment tooth. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] The door frame straight bar 1, positioning slot 101, door frame crossbar 2, positioning insert 201, rectangular slot 202, right-angle trapezoidal slot 203, snap ring 3, positioning tooth 301 and anti-detachment tooth 302 components in this application are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0024] Example 1

[0025] Please see Figures 1-4 As shown, this utility model provides a technical solution: a metal door frame that can be quickly assembled and disassembled, comprising:

[0026] The door frame straight section 1 has positioning slots 101 on the inner surfaces of both the upper and lower ends;

[0027] The door frame crossbar 2 has positioning blocks 201 adapted to the positioning slot 101 on both the left and right sides. The front and rear sides of the positioning blocks 201 are respectively provided with rectangular slots 202 and right-angled trapezoidal slots 203.

[0028] The retaining spring 3 is located between the right-angled trapezoidal groove 203 and the inner wall of the door frame straight section 1.

[0029] There are three positioning slots 101 at one end of the door frame straight block 1, and the width of the rectangular slot 202 is the same as the thickness of the door frame straight block 1.

[0030] This technical solution involves bringing the door frame crossbar 2 closer to the door frame straight bar 1, causing the positioning block 201 to insert into the corresponding positioning slot 101. This horizontally pushes the door frame straight bar 1 and door frame crossbar 2 flat, causing the door frame straight bar 1 to snap into the rectangular slot 202 of the positioning block 201. Then, by pressing the retaining spring 3, the retaining spring 3 enters between the right-angled trapezoidal slot 203 and the inner wall of the door frame straight bar 1. After the retaining spring 3 returns to its original shape, it prevents the positioning block 201 from resetting, thus preventing the door frame crossbar 2 from detaching from the door frame straight bar 1. This allows for quick assembly and installation of the door frame. After removing the retaining spring 3, the positioning block 201 exits the corresponding positioning slot 101, enabling quick disassembly of the door frame. This method is convenient, time-saving, and labor-saving. The right-angled trapezoidal slot 203 allows one corner to abut against the retaining spring 3, improving the fit and stability of the retaining spring 3.

[0031] It should be noted that the door frame straight section 1 and door frame horizontal section 2 shown in the attached drawing are only one of the four mating corners of the metal door frame. The other three mating corners are mated in the same way as shown in the attached drawing, so they are not all shown and will not be described in detail here.

[0032] Example 2

[0033] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a plurality of anti-disengagement teeth 302 are provided on one side of the retaining spring 3 that mates with the right-angled trapezoidal groove 203.

[0034] This technical solution: By setting the anti-disengagement tooth 302, the fit between the retaining spring 3 and the positioning insert 201 can be improved when the retaining spring 3 and the right-angle trapezoidal groove 203 are engaged.

[0035] Example 3

[0036] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, the spring clip 3 is provided with a number of positioning teeth 301 on one side near the inner wall of the door frame straight block 1, and one end of the positioning teeth 301 is inclined downward.

[0037] This technical solution: By setting the positioning teeth 301, the fit between the snap ring 3 and the inner wall of the door frame straight block 1 can be improved, thereby ensuring the stability of the snap ring 3 during use.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A quick-assembly and disassembly metal door frame, characterized in that, include: Door frame straight section (1), the inner surfaces of the upper and lower ends of the door frame straight section (1) are provided with positioning slots (101); The door frame crossbar (2) is provided with positioning blocks (201) that are adapted to the positioning slot (101) on both the left and right sides. The positioning blocks (201) are provided with rectangular slots (202) and right-angled trapezoidal slots (203) on the front and rear sides respectively. The retaining spring (3) is located between the right-angled trapezoidal groove (203) and the inner wall of the door frame straight section (1).

2. The quick-assembly and disassembly metal door frame according to claim 1, characterized in that: The number of positioning slots (101) at one end of the door frame straight section (1) is three.

3. A quick-assembly and disassembly metal door frame according to claim 1, characterized in that: The width of the rectangular slot (202) is the same as the thickness of the door frame straight section (1).

4. A quick-assembly and disassembly metal door frame according to claim 1, characterized in that: The side of the snap ring (3) that mates with the right-angled trapezoidal groove (203) is provided with a number of anti-detachment teeth (302).

5. A quick-assembly and disassembly metal door frame according to claim 1, characterized in that: The snap ring (3) is provided with a number of positioning teeth (301) on the side near the inner wall of the door frame straight section (1), and one end of the positioning teeth (301) is inclined downward.

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