A size-adjustable door frame
By designing an adjustable door frame structure, the problem of door frames being unable to adapt to site conditions was solved, achieving flexible size adjustment and stability, and avoiding resource waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIKAI SMART HOME CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-14
AI Technical Summary
Once the door frame is manufactured, its structure is fixed and cannot be adapted to the site conditions, which can easily lead to waste.
An adjustable door frame structure was designed, including a side door frame, a horizontal door frame, a fixing plate, and an adjusting screw. Size adjustment is achieved through threaded connection and limit slots to ensure stability and strength.
It achieves adjustable door frame size, avoids resource waste, meets the need for temporary wall widening, and is simple to operate and structurally stable.
Smart Images

Figure CN224496201U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door frame technical field, concretely is a door frame of adjustable size. BACKGROUND
[0002] The main role of door frame is fixed door leaf and protects the corner, decoration etc. It is commonly used in the process of decoration, and is used to protect the door from scratching, corrosion, damage, dirt.
[0003] At present, the production of door frame is mostly measured on site by staff or users, and then feedback to the manufacturer for production, however, the staff or users mostly measure by tape measure when measuring, and then some errors are prone to occur, and some users will temporarily widen the door wall according to individual needs, and the structure of the door frame is fixed after production, if it cannot adapt to the site situation, waste is prone to occur, therefore, we provide a door frame of adjustable size. UTILITY MODEL CONTENT
[0004] The utility model discloses a door frame of adjustable size, has the advantages of adjustable size, solves the problem that the structure of the door frame is fixed after production, if it cannot adapt to the site situation, waste is prone to occur.
[0005] To achieve the above object, the utility model provides the following technical scheme: a door frame of adjustable size, comprising:
[0006] The side door frame is provided with three connecting plugs in the middle part of the upper end, and the end face of the connecting plug in the middle position is provided with an internal screw hole;
[0007] The horizontal door frame is located between the upper ends of the two side door frames, and the two ends of the bottom of the horizontal door frame are provided with matching plugs matched with the connecting plugs, and the two ends of the inside bottom of the horizontal door frame are provided with adjusting grooves;
[0008] The fixed plate is fixedly connected to one end of the adjusting groove, the inner surface of the fixed plate is movably connected with an adjusting screw threadedly connected with the internal screw hole through a bearing, and one side of the adjusting screw is fixedly connected with a rotating block.
[0009] Preferably, the two sides of the connecting plug are provided with a connecting convex strip, and the two sides of the matching plug are provided with a connecting groove matched with the connecting convex strip.
[0010] Preferably, the height of the fixed plate is consistent with the depth of the adjusting groove.
[0011] Preferably, the middle end of the rotating block is provided with a multi-surface limiting slot, the two sides of the adjusting groove are provided with a guide sliding groove penetrating through the top of the horizontal door frame, and the inner side of the guide sliding groove is slidably connected with a limiting plug matched with the multi-surface limiting slot.
[0012] Preferably, the upper end of the limiting plug-in plate is provided with a pull buckle groove.
[0013] Preferably, the upper end of the side door frame is provided with a side plug-in plate on both sides, and the top and bottom of the side plug-in plate are provided with limiting convex strips.
[0014] Preferably, the side surface of the transverse door frame at both ends is provided with a connecting plug-in groove matched with the limiting convex strip.
[0015] Compared with the prior art, the utility model has the advantages that:
[0016] The utility model discloses can guarantee the strength of self simultaneously, has the ability of size adjustable, satisfies the use of temporary widening wall body and error wall body, avoids the waste of resources, and simple structure, convenient operation. DRAWINGS
[0017] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0018] Figure 2 It is the side door frame structure schematic diagram of the utility model;
[0019] Figure 3 It is the unfolded structure schematic diagram of the utility model rotating block and limiting plug-in plate;
[0020] Figure 4 It is the transverse door frame structure schematic diagram of the utility model;
[0021] Figure 5 It is the cooperation structure schematic diagram of the utility model side door frame and transverse door frame.
[0022] In the drawing: 1, side door frame;101, side plug-in plate;102, connecting plug-in plate;103, internal screw hole;104, limiting convex strip;105, connecting convex strip;2, transverse door frame;201, adjusting groove;202, guide sliding slot;203, cooperation plug-in plate;204, connecting recess;205, limiting recess;206, connecting plug-in groove;3, fixed plate;301, adjusting screw;302, rotating block;303, multi-surface limiting clamping groove;304, limiting plug-in plate;305, pull buckle groove. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0024] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two;The terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0025] In the description of the utility model, it is necessary to point out that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0026] The side door frame 1, the side plugboard 101, the connecting plugboard 102, the internal screw hole 103, the limiting convex strip 104, the connecting convex strip 105, the horizontal door frame 2, the adjusting groove 201, the guide sliding groove 202, the matching plugboard 203, the connecting groove 204, the limiting groove 205, the connecting slot 206, the fixed plate 3, the adjusting screw 301, the rotating block 302, the multi-surface limiting clamping groove 303, the limiting plugboard 304 and the pull buckle slot 305 parts of the present application are all general standard parts or parts known to those skilled in the art, and their structure and principle can be known by the technical personnel through the technical manual or through the conventional experimental method.
[0027] Example one
[0028] Please refer to Figures 1-5 As shown in the utility model provides a technical scheme: a size-adjustable door frame, comprising:
[0029] The side door frame 1, the middle part of the upper end of the side door frame 1 is provided with three connecting plugboards 102, and the end face of the connecting plugboard 102 at the middle position is provided with an internal screw hole 103;
[0030] The horizontal door frame 2 is located between the upper ends of the two side door frames 1, the two ends of the bottom of the horizontal door frame 2 are provided with matching plugboards 203 matched with the connecting plugboards 102, and the two ends of the bottom of the inner side of the horizontal door frame 2 are provided with adjusting grooves 201;
[0031] The fixing plate 3 is fixedly connected to one end of the adjusting groove 201. The inner surface of the fixing plate 3 is movably connected to the adjusting screw 301, which is threadedly connected to the inner screw hole 103, through the bearing. A rotating block 302 is fixedly connected to one side of the adjusting screw 301.
[0032] Connecting protrusions 105 are provided on both sides of the connecting plate 102, and connecting grooves 204 adapted to the connecting protrusions 105 are provided on both sides of the connecting plate 203. The height of the fixing plate 3 is the same as the depth of the adjusting groove 201.
[0033] This technical solution, through the setting of side door frame 1 and horizontal door frame 2, enables the door frame to be transported separately, reducing the difficulty of overall transport. When the adjusting screw 301 is rotated by the rotating block 302, the adjusting screw 301 rotates in the inner screw hole 103. With the assistance of the connecting plate 102, the mating plate 203, the connecting protrusion 105, and the connecting groove 204, the connection strength between the side door frame 1 and the horizontal door frame 2 is strengthened. Moreover, when the door frame width is adjusted as needed, the stability of the side door frame 1 and the horizontal door frame 2 during expansion is ensured. It is convenient to use, simple to operate, and has the ability to adjust the size, meeting the needs of temporary widening of walls and error walls.
[0034] Example 2
[0035] Based on Embodiment 1, this utility model is as follows: Figures 1-5 As shown, the rotating block 302 has a multi-faceted limiting slot 303 at its middle end, and the adjusting slot 201 has guide grooves 202 that penetrate the top of the horizontal door frame 2 on both sides. The guide grooves 202 are slidably connected to the inner side of the guide grooves 202, and the limiting inserts 304 that are adapted to the multi-faceted limiting slots 303 are slidably connected to the inner side of the guide grooves 202.
[0036] This technical solution: By setting up the multi-faceted limiting slot 303, after the rotating block 302 drives the adjusting screw 301 to rotate and adjust, the limiting plate 304 is inserted into the adjusting groove 201 along the guide slide 202. Thus, the bottom middle end of the limiting plate 304 can be fitted and inserted into the multi-faceted limiting slot 303, thereby locking the position of the rotating block 302, ensuring that the position of the adjusting screw 301 remains unchanged, which is beneficial to the dimensional stability of the door frame after width adjustment.
[0037] Example 3
[0038] Based on Embodiment 2, this utility model is as follows: Figures 1-5 As shown, the upper end of the limiting insert plate 304 is provided with a lifting buckle groove 305.
[0039] This technical solution: By setting the lifting buckle groove 305, it is convenient for staff or users to drive the limit plate 304 to move along the guide slide 202.
[0040] Example 4
[0041] Based on Embodiment 1, this utility model is as follows: Figures 1-5 As shown, the side door frame 1 has side insert plates 101 on both sides of the upper end. The top and bottom of the side insert plates 101 are provided with limiting protrusions 104. The sides of both ends of the horizontal door frame 2 are provided with matching connection slots 206. The top and bottom of the inner side of the connection slots 206 are provided with limiting grooves 205 that are compatible with the limiting protrusions 104.
[0042] This technical solution, through the setting of the side insert plate 101 and the limiting protrusion 104, and with the assistance of the connecting slot 206 and the limiting groove 205, can further ensure the stability of the side door frame 1 and the horizontal door frame 2 during expansion, and improve the connection strength between the side door frame 1 and the horizontal door frame 2.
[0043] 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. An adjustable-size door frame, characterized in that, include: A side door frame (1) is provided with three connecting plates (102) in the middle of the upper end of the side door frame (1), and an internal screw hole (103) is provided on the end face of the connecting plate (102) in the middle position. A horizontal door frame (2) is located between the upper ends of two side door frames (1). The bottom ends of the horizontal door frame (2) are provided with mating inserts (203) that are adapted to the connecting inserts (102). Adjustment grooves (201) are provided at both ends of the bottom inner side of the horizontal door frame (2). A fixing plate (3) is fixedly connected to one end of the adjusting groove (201). The inner surface of the fixing plate (3) is movably connected to an adjusting screw (301) threadedly connected to the inner screw hole (103) via a bearing. A rotating block (302) is fixedly connected to one side of the adjusting screw (301).
2. The adjustable-size door frame according to claim 1, characterized in that: The connecting insert (102) is provided with connecting protrusions (105) on both sides, and the mating insert (203) is provided with connecting grooves (204) on both sides that are adapted to the connecting protrusions (105).
3. The adjustable-size door frame according to claim 1, characterized in that: The height of the fixing plate (3) is consistent with the depth of the adjustment groove (201).
4. The adjustable-size door frame according to claim 1, characterized in that: The rotating block (302) has a multi-faceted limiting slot (303) at its middle end. The adjusting groove (201) has guide grooves (202) on both sides that penetrate the top of the horizontal door frame (2). The guide groove (202) has a limiting insert plate (304) that is adapted to the multi-faceted limiting slot (303) slidably connected to its inner side.
5. An adjustable-size door frame according to claim 4, characterized in that: The upper end of the limiting insert (304) is provided with a lifting buckle groove (305).
6. The adjustable-size door frame according to claim 1, characterized in that: Both sides of the upper end of the side door frame (1) are provided with side insert plates (101), and the top and bottom of the side insert plates (101) are provided with limit protrusions (104).
7. An adjustable-size door frame according to claim 6, characterized in that: The sides of both ends of the horizontal door frame (2) are provided with matching connection slots (206), and the top and bottom of the inner side of the connection slots (206) are provided with limiting grooves (205) that are compatible with the limiting protrusions (104).