A door frame and a disinfection cabinet

Abstract

This invention discloses a door frame, comprising: a door frame body including a first horizontal portion and first vertical portions extending downwards on the left and right sides of the first horizontal portion; a crossbeam fixed to the first horizontal portion via a plug-in structure; and a vertical beam fixed to the first vertical portion via a plug-in structure. In this invention, by fixing the door frame body to the crossbeam and the vertical beam respectively, the thickness of the door frame is increased, thereby allowing a thicker door to be placed over the opening of the door frame. This avoids deformation or even cracking of the door frame body due to excessive stretching when increasing its thickness. This invention also discloses a disinfection cabinet equipped with the aforementioned door frame.

Description

Technical Field

[0001] This invention belongs to the field of kitchen household appliances, and more specifically, relates to a door frame and a disinfection cabinet including the door frame. Background Technology

[0002] As people's living standards continue to improve, disinfection cabinets have become an essential household appliance for many families. Since high-rise residential buildings in cities now have a unified design, the design of kitchen cabinets for each household is also standardized. Disinfection cabinets can be embedded in kitchen cabinets, making installation more convenient and improving the utilization of kitchen space.

[0003] Many products, such as disinfection cabinets, dishwashers, and ovens, have door frames made using an integral stretching process. This allows the door to be pulled out and installed on the stretched door frame to close the opening. The door frame serves to both fix and decorate the door.

[0004] In the existing technology, the thickness of the door frame is increased by increasing the stretching depth of the main body of the door frame, so that the thicker door body can cover the opening of the door frame. However, if the stretching depth of the main body of the door frame is too large, the main body of the door frame may deform or even crack due to excessive stretching, which will affect the service life of the door frame or cause safety accidents.

[0005] In view of this, the present invention is hereby proposed. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a door frame that achieves the purpose of increasing the thickness of the door frame.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0008] A door frame, comprising:

[0009] The main body of the door frame includes a first horizontal part and a first vertical part extending downward on the left and right sides of the first horizontal part;

[0010] The crossbeam is fixed to the first horizontal section via a plug-in structure;

[0011] The vertical beam is fixed to the first vertical part via a plug-in structure.

[0012] Furthermore, the rear side of the crossbeam and the rear side of the vertical beam are each provided with at least one positioning part with varying concavity and convexity. The first horizontal part and the first vertical part are respectively provided with guide holes for the positioning part to be inserted from back to front, and the positioning part and the guide hole are interference fit.

[0013] Furthermore, the crossbeam includes a first horizontal wall that fits against the front side of the first horizontal part, and the vertical beam includes a first vertical wall that fits against the front side of the first vertical part. The first horizontal wall and the first vertical wall each have at least one positioning part, which is wedge-shaped or conical in shape, with the front smaller than the back and gradually narrowing forward.

[0014] Furthermore, the crossbeam also includes a second horizontal wall that is perpendicular to the first horizontal wall and extends in the horizontal direction, and the vertical beam also includes a second vertical wall that is perpendicular to the first vertical wall and extends in the vertical direction. The second horizontal wall is fixed to the second vertical wall via a plug-in structure.

[0015] Furthermore, the top of the second vertical wall is provided with at least one upwardly extending claw, and the second horizontal wall is provided with a corresponding limiting hole for the claw to be inserted from bottom to top.

[0016] Furthermore, a first notch is provided on the first horizontal part, and the edge of the first notch is bent forward horizontally to form a first support wall. Corresponding connecting holes for fasteners to pass through are provided on the bottom end of the crossbeam and the first support wall.

[0017] Furthermore, the crossbeam includes a second horizontal wall that extends vertically along the first vertical section, and the second horizontal wall and the first support arm are respectively provided with connecting holes for fasteners to pass through.

[0018] Preferably, the second horizontal wall and the first supporting wall are arranged in parallel.

[0019] Furthermore, a second notch is provided on the first vertical part, and the edge of the second notch is bent forward to form a second support wall. Corresponding connecting holes for fasteners to pass through are provided on the bottom end of the vertical beam and the second support wall.

[0020] Furthermore, the vertical beam includes a second vertical wall that is perpendicular to the first vertical part and extends in the vertical direction. The bottom end of the second vertical wall is bent forward to form a flange. The flange and the second support arm are respectively provided with connecting holes for fasteners to pass through.

[0021] Preferably, the flange and the second support wall are arranged in parallel.

[0022] Another object of the present invention is to provide a disinfection cabinet so as to achieve the purpose of installing a thick and large door body on the door frame.

[0023] This invention discloses a disinfection cabinet equipped with the aforementioned door frame.

[0024] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0025] 1. In this invention, the main body of the door frame is fixedly connected to the horizontal beam and the vertical beam respectively, thereby increasing the thickness of the door frame. This allows the thicker door body to be placed over the opening of the door frame, avoiding the deformation caused by excessive stretching of the main body of the door frame due to stretching the main body of the door frame to increase the thickness of the door frame, or even causing the main body of the door frame to be torn.

[0026] 2. In this invention, the main body of the door frame is fixedly connected to the horizontal beam and the vertical beam through a plug-in structure. The assembly structure is simple, easy to assemble, and the connection is firm. This not only improves assembly efficiency but also reduces the production cost of the disinfection cabinet. In addition, it is also beneficial for users to maintain and repair the disinfection cabinet.

[0027] 3. In this invention, the main body of the door frame is fixed to the horizontal beam and the vertical beam respectively through a plug-in structure. After the horizontal beam and the vertical beam are fixed through the plug-in structure, the main body of the door frame and the horizontal beam, and the main body of the door frame and the vertical beam are fastened together by fasteners, so as to further ensure the stability and support strength of the door frame.

[0028] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of a door frame according to an embodiment of the present invention;

[0031] Figure 2 This is an exploded view of a door frame according to an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the door frame body in an embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the crossbeam structure in an embodiment of the present invention;

[0034] Figure 5 This is a side view of the crossbeam in an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the vertical beam in an embodiment of the present invention;

[0036] Figure 7 This is a top view of the vertical beam in an embodiment of the present invention;

[0037] Figure 8 yes Figure 1 A magnified view of a section at point A in the middle;

[0038] Figure 9 yes Figure 1 A magnified view of a section at point B in the middle.

[0039] In the picture:

[0040] 1. Door frame body; 11. First horizontal section; 111. Guide hole; 12. First vertical section; 121. Guide hole; 13. First support wall; 131. Connecting hole; 14. First notch; 15. Second support wall; 151. Connecting hole; 16. Second notch;

[0041] 2. Crossbeam; 21. First horizontal wall; 22. Second horizontal wall; 23. Positioning part; 24. Hollowed-out part; 25. Limiting hole; 26. Connecting hole; 27. Horizontal fold;

[0042] 3. Vertical beam; 31. First vertical wall; 32. Second vertical wall; 33. Positioning part; 34. Hollowed-out part; 35. Flanged edge; 36. Connecting hole; 37. Claw; 38. Vertical folded edge.

[0043] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0045] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "longitudinal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0047] Example 1

[0048] like Figures 1 to 9 As shown, an embodiment of the present invention provides a door frame, including: a door frame body 1, including a first horizontal part 11 and a first vertical part 12 extending downward on the left and right sides of the first horizontal part 11; a crossbeam 2, which is fixed to the first horizontal part 11 via a plug-in structure; and a vertical beam 3, which is fixed to the first vertical part 12 via a plug-in structure.

[0049] In the above scheme, the door frame body 1 is fixedly connected to the horizontal beam 2 and the vertical beam 3 respectively, which increases the thickness of the door frame. This allows the thicker door body to be placed over the opening of the door frame, avoiding the deformation caused by stretching the door frame body 1 to increase the thickness of the door frame, or even causing the door frame body 1 to be torn.

[0050] like Figures 3 to 7 As shown, in this embodiment, the rear side of the crossbeam 2 and the rear side of the vertical beam 3 are respectively provided with a positioning part 23 and 33 with concave and convex variations. The first horizontal part 11 and the first vertical part 12 are respectively provided with guide holes 111 and 121 for the positioning parts 23 and 33 to be inserted from back to front. The positioning parts 23 and 33 are interference-fitted with the guide holes 111 and 121.

[0051] In the above scheme, the positioning parts 23 and 33 are interference-fitted with the guide holes 111 and 121, so that the crossbeam 2 is firmly connected to the first horizontal part 11 and the vertical beam 3 is firmly connected to the first vertical part 12. The assembly structure of the crossbeam 2, the vertical beam 3 and the door frame body 1 is simple, easy to operate and firmly connected. This not only improves the assembly efficiency of the door and reduces the labor intensity of workers, but also reduces the number of parts used and lowers the production cost of the disinfection cabinet.

[0052] like Figures 3 to 5 As shown, in this embodiment, the first horizontal wall 21 is provided with two positioning parts 23 with varying concave and convex shapes, and the first horizontal part 11 is provided with corresponding guide holes 111. The positioning parts 23 are inserted into the corresponding guide holes 111. Preferably, the two positioning parts 23 are symmetrically arranged at both ends of the first horizontal wall 21 to ensure that the beam 2 is more firmly connected to the door frame body 1.

[0053] like Figure 3 , Figure 6 and Figure 7 As shown, in this embodiment, the first vertical wall 31 is provided with two positioning parts 33 with varying concave and convex shapes, and the first vertical part 12 is provided with corresponding guide holes 121. The positioning parts 33 are inserted into the corresponding guide holes 121. Preferably, the two positioning parts 33 are symmetrically arranged at both ends of the first vertical wall 31 to ensure that the vertical beam 3 is more firmly connected to the door frame body 1.

[0054] like Figures 3 to 7 As shown, in this embodiment, the crossbeam 2 includes a first horizontal wall 21 that fits against the front side of the first horizontal part 11, and the vertical beam 3 includes a first vertical wall 31 that fits against the front side of the first vertical part 12. The first horizontal wall 21 and the first vertical wall 31 are each provided with at least one positioning part 23 and 33. The positioning parts 23 and 33 are wedge-shaped or conical, which are smaller in the front and larger in the back and gradually narrower in the front.

[0055] In the above scheme, the positioning parts 23 and 33 are wedge-shaped or conical with a smaller front and a larger rear, and gradually narrowing forward. This is more conducive to the forward movement of the positioning parts 23 and 33 relative to the guide holes 111 and 121 opened on the first horizontal part 11 and the first vertical part 12, so as to achieve an interference fit between the positioning parts 23 and 33 and the outer peripheral wall of the guide holes 111 and 121, so that the horizontal beam 2 and the vertical beam 3 are stably installed on the door frame body 1, and the stability of the plug-in structure is improved.

[0056] like Figures 3 to 7 As shown, in this embodiment, the positioning parts 23 and 33 are elastic protrusions. The outer side wall of the elastic protrusions fits against the outer peripheral wall of the guide holes 111 and 121, so that the elastic protrusions and the outer peripheral wall of the guide holes 111 and 121 form an interference fit to form a snap-fit ​​structure and ensure the stability of the connection structure.

[0057] like Figure 4 and Figure 6 As shown, in this embodiment, the first horizontal wall 21 and the first vertical wall 31 are respectively provided with hollowed-out portions 24 and 34. The edges of the hollowed-out portions 24 and 34 are provided with U-shaped protrusions extending horizontally forward. The U-shaped protrusions are inserted into the guide holes 111 and 121 from back to front. The outer side wall of the U-shaped protrusions abuts against the outer peripheral wall of the guide holes 111 and 121 and forms an interference fit.

[0058] In this embodiment, the door frame body 1, the horizontal beam 2, and the vertical beam 3 are metal parts; preferably, the door frame body 1, the horizontal beam 2, and the vertical beam 3 are sheet metal parts, which have the advantages of simple processing and high strength.

[0059] In this embodiment, the positioning parts 23 and 33 are part of the sheet metal parts, so that the positioning parts 23 and 33 can undergo elastic deformation under the action of external force, so that the positioning parts 23 and 33 can be inserted into the guide holes 111 and 121; after the external force is removed, the positioning parts 23 and 33 return to their original shape, and the surface of the positioning parts 23 and 33 is interference-fitted with the outer peripheral wall of the guide holes 111 and 121, thereby forming a snap-fit ​​structure, so that the crossbeam 2 is tightly connected to the door frame body 1 and the vertical beam 3 is tightly connected to the door frame body 1.

[0060] like Figure 4As shown, in this embodiment, a portion of the first horizontal wall 21 is bent forward to form a horizontal folded edge 27. A connecting hole is provided on the horizontal folded edge 27. Fasteners pass through the connecting holes provided on the horizontal folded edge 27 and the cabinet body on the opposite side in sequence to securely connect the beam 2 and the cabinet body.

[0061] like Figure 6 As shown, in this embodiment, a portion of the first vertical wall 31 is bent forward to form a vertical folded edge 38. A connecting hole is provided on the vertical folded edge 38. Fasteners pass through the connecting holes provided on the vertical folded edge 38 and the cabinet body on the opposite side in sequence to securely connect the vertical beam 3 and the cabinet body.

[0062] The door frame 1 is fixedly connected to the horizontal beam 2 and the vertical beam 3 via a plug-in structure. The assembly structure is simple, easy to assemble, and the connection is firm. This not only improves assembly efficiency but also reduces the production cost of the disinfection cabinet. In addition, it is beneficial for users to maintain and repair the disinfection cabinet.

[0063] Example 2

[0064] like Figures 1 to 9 As shown, this embodiment is a further limitation of the first embodiment above. The crossbeam 2 also includes a second horizontal wall 22 that is perpendicular to the first horizontal wall 21 and extends in the horizontal direction. The vertical beam 3 also includes a second vertical wall 32 that is perpendicular to the first vertical wall 31 and extends in the vertical direction. The second horizontal wall 22 is fixed to the second vertical wall 32 via a plug-in structure.

[0065] In the above scheme, the second horizontal wall 22 is fixed to the second vertical wall 32 via a plug-in structure, thereby realizing the detachable fixed connection between the horizontal beam 2 and the vertical beam 3. The plug-in structure is simple, easy to assemble, and has high assembly efficiency, reducing the labor intensity of assembly workers.

[0066] like Figure 4 , Figure 6 and Figure 8 As shown, in this embodiment, the top of the second vertical wall 32 is provided with at least one upwardly extending claw 37, and the second horizontal wall 22 is provided with a corresponding limiting hole 25 for the claw 37 to be inserted from bottom to top.

[0067] In the above scheme, the claw 37 is inserted into the limiting hole 25 from bottom to top and partially protrudes from the limiting hole 25. The claw 37 is limited to move within the limiting hole 25, thereby achieving the initial fixation of the crossbeam 2 and the vertical beam 3, so as to facilitate the further fastening connection of the crossbeam 2 and the vertical beam 3.

[0068] like Figure 4 , Figure 6 and Figure 8As shown, in this embodiment, the top of the second vertical wall 32 is provided with two upwardly extending claws 37, and the second horizontal wall 22 is provided with corresponding limiting holes 25. The claws 37 are inserted into the corresponding limiting holes 25 from bottom to top to ensure that the connection between the horizontal beam 2 and the vertical beam 3 is more secure.

[0069] like Figures 1 to 9 As shown, in this embodiment, the limiting hole 25 is an elongated opening, which facilitates the insertion of the claw 37 from bottom to top into the limiting hole 25.

[0070] like Figure 4 and Figure 8 As shown, in this embodiment, the limiting hole 25 includes a large hole section and a small hole section. The width of the large hole section is greater than the radial dimension of the claw 37, and the width of the small hole section is less than or equal to the radial dimension of the claw 37. The claw 37 is inserted into the large hole section from bottom to top. The claw 37 slides horizontally from the large hole section to the small hole section. The outer wall of the claw 37 abuts against the outer peripheral wall of the small hole section. The claw 37 is limited and fixed in the small hole section. The claw 37 is introduced into the small hole section from the large hole section and is interference-fitted with the small hole section to fix the crossbeam 2 and the vertical beam 3.

[0071] With the aforementioned door frame, the main body 1 of the door frame is fixed to the horizontal beam 2 and the vertical beam 3 respectively through the plug-in structure. The horizontal beam 2 and the vertical beam 3 are fixed through the plug-in structure, so that the main body 1 of the door frame, the horizontal beam 2 and the vertical beam 3 form an integral structure. The main body 1 of the door frame has an opening. The fixed connection between the horizontal beam 2 and the vertical beam 3 and the main body 1 of the door frame increases the thickness of the door frame, so as to cover the thick and large door body on the opening of the door frame.

[0072] Example 3

[0073] like Figures 1 to 9 As shown, this embodiment is a further limitation of the above embodiments one and two. The first horizontal part 11 is provided with a first notch 14, and the edge of the first notch 14 is bent forward horizontally to form a first support wall 13. The bottom end of the crossbeam 2 and the first support wall 13 are respectively provided with connecting holes 26 and 131 for fasteners to pass through.

[0074] In the above scheme, the door frame body 1 is fixed to the horizontal beam 2 and the vertical beam 3 respectively by the plug-in structure. After the horizontal beam 2 and the vertical beam 3 are fixed by the plug-in structure, the fasteners pass through the bottom end of the horizontal beam 2 and the connecting holes 26 and 131 opened on the first support wall 13 in sequence to fasten the horizontal beam 2 and the door frame body 1.

[0075] like Figure 3 and Figure 4 As shown, in this embodiment, the crossbeam 2 includes a second horizontal wall 22 that is perpendicular to the first vertical part 12 and extends in the vertical direction. The second horizontal wall 22 and the first support wall 13 are respectively provided with connecting holes 26 and 131 for fasteners to pass through.

[0076] In the above scheme, fasteners pass through the corresponding connection holes 26 and 131 on the second horizontal wall 22 and the first support wall 13 in sequence to fasten the crossbeam 2 and the door frame body 1, thereby realizing the detachable fixed connection between the crossbeam 2 and the door frame body 1, which facilitates the assembly or disassembly of the crossbeam 2 and the door frame body 1.

[0077] like Figure 3 and Figure 4 As shown, in this embodiment, the second horizontal wall 22 and the first support wall 13 are arranged in parallel so that the second horizontal wall 22 and the first support wall 13 are in contact with each other. The second horizontal wall 22 and the first support wall 13 can be further locked and fitted by fasteners so that the beam 2 and the door frame body 1 are firmly connected.

[0078] The door frame body 1 is fixed to the horizontal beam 2 and the vertical beam 3 respectively through the plug-in structure. After the horizontal beam 2 and the vertical beam 3 are fixed through the plug-in structure, the fasteners will fasten the door frame body 1 to the horizontal beam 2, further ensuring the stability and support strength of the door frame.

[0079] Example 4

[0080] like Figures 1 to 9 As shown, this embodiment is a further limitation of the above embodiments one, two and three. The first vertical part 12 is provided with a second notch 16, and the edge of the second notch 16 is bent forward to form a second support wall 15. The bottom end of the vertical beam 3 and the second support wall 15 are respectively provided with connecting holes 36 and 151 for fasteners to pass through.

[0081] In the above scheme, the door frame body 1 is fixed to the horizontal beam 2 and the vertical beam 3 respectively through the plug-in structure. After the horizontal beam 2 and the vertical beam 3 are fixed through the plug-in structure, the fasteners pass through the bottom end of the vertical beam 3 and the connection holes 36 and 151 opened on the second support wall 15 in sequence to fasten the vertical beam 3 and the door frame body 1.

[0082] like Figure 6 , Figure 7 and Figure 9 As shown, in this embodiment, the vertical beam 3 includes a second vertical wall 32 that is perpendicular to the first vertical part 12 and extends in the vertical direction. The bottom end of the second vertical wall 32 is bent forward to form a flange 35. The flange 35 and the second support wall 15 are respectively provided with connecting holes 36 and 151 for fasteners to pass through.

[0083] In the above scheme, fasteners pass through the corresponding connection holes 36 and 151 on the second vertical wall 32 and the second support wall 15 in sequence to fasten the vertical beam 3 and the door frame body 1, thereby realizing the detachable fixed connection between the vertical beam 3 and the door frame body 1, which facilitates the assembly or disassembly of the vertical beam 3 and the door frame body 1.

[0084] like Figure 9As shown, in this embodiment, the flange 35 and the second support wall 15 are arranged in parallel so that the flange 35 and the second support wall 15 fit together. Fasteners can further lock the flange 35 and the second support wall 15 together so that the vertical beam 3 and the door frame body 1 are securely connected.

[0085] With the aforementioned door frame, the door frame body 1 and the horizontal beam 2, and the door frame body 1 and the vertical beam 3 are fixed by the plug-in structure. Fasteners then securely connect the door frame body 1 and the vertical beam 3, further ensuring the stability and support strength of the door frame structure.

[0086] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A door frame, characterized in that The door frame comprises: a door frame body, which comprises a first horizontal part and first vertical parts extending downward on the left and right sides of the first horizontal part; a cross beam, which is fixed to the first horizontal part through a plug-in structure; a vertical beam, which is fixed to the first vertical part through a plug-in structure; the rear side of the cross beam and the rear side of the vertical beam are respectively provided with at least one positioning part with concave-convex changes, and the first horizontal part and the first vertical part are correspondingly provided with guide holes for the positioning part to be plugged in from the rear to the front, and the positioning part is in interference fit with the guide hole; the cross beam comprises a first horizontal wall which is in close contact with the front side of the first horizontal part, and the vertical beam comprises a first vertical wall which is in close contact with the front side of the first vertical part, and the first horizontal wall and the first vertical wall are respectively provided with at least one positioning part which is wedge-shaped or conical and gradually narrows forward from small to large; the cross beam further comprises a second horizontal wall which extends in the horizontal direction and is perpendicular to the first horizontal wall, and the vertical beam further comprises a second vertical wall which extends in the vertical direction and is perpendicular to the first vertical wall, and the second horizontal wall is fixed to the second vertical wall through a plug-in structure; the top end of the second vertical wall is provided with at least one upwardly extending clamping jaw, and the second horizontal wall is correspondingly provided with a limiting hole for the clamping jaw to be plugged in from the bottom to the top.

2. A door frame according to claim 1, characterised in that a first notch is formed in the first horizontal part, the edge of the first notch is bent forward to form a first support wall, and the bottom end of the cross beam and the first support wall are correspondingly provided with connecting holes for a fastener to pass through; 3. A door frame according to claim 2, wherein the cross beam comprises a second horizontal wall which extends in the vertical direction and is perpendicular to the first vertical part, and the second horizontal wall and the first support arm are correspondingly provided with connecting holes for the fastener to pass through; the second horizontal wall and the first support wall are arranged in parallel.

4. A door frame according to claim 1, wherein a second notch is formed in the first vertical part, the edge of the second notch is bent forward to form a second support wall, and the bottom end of the vertical beam and the second support wall are correspondingly provided with connecting holes for the fastener to pass through; 5. A door frame according to claim 4, wherein the vertical beam comprises a second vertical wall which extends in the vertical direction and is perpendicular to the first vertical part, the bottom end of the second vertical wall is bent forward to form a flange, and the flange and the second support arm are correspondingly provided with connecting holes for the fastener to pass through; the flange and the second support wall are arranged in parallel.

6. A sterilizer characterized by The door frame is installed with any one of claims 1-5.

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