A clean door frame structure

Abstract

The present invention belongs to the technical field of door frames, and specifically discloses a clean door frame structure, comprising a main frame, a sub-frame, a connecting frame and a fixing assembly, wherein the middle portion of the main frame is bent to form a main frame plywood and a fixing panel, and a plurality of mounting holes are provided on the fixing panel; the middle portion of the sub-frame is bent to form a sub-frame plywood and a door stop panel, a receiving groove is formed between the door stop panel and the sub-frame plywood, and a clamping area is formed between the main frame plywood and the sub-frame plywood; the middle portion of the connecting frame is bent to form a connecting panel and a connecting side panel, the connecting side panel is located in the receiving groove, and the connecting side panel is connected to the door stop panel, and an opening is provided in the connecting panel near the mounting hole; the fixing assembly is arranged at the opening, comprising a main frame fixing part and a sub-frame fixing part, one end of the sub-frame fixing part is connected to the edge of the opening, and the other end is connected to the sub-frame plywood, the main frame fixing part is located between the sub-frame fixing part and the fixing panel, and the main frame fixing part is connected to the fixing panel, so as to solve the problem that the mounting holes of the door frame are exposed and unsightly.

Description

Technical Field

[0001] The present invention relates to the technical field of door frames, and in particular to a clean door frame structure. Background Art

[0002] Clean doors are mainly used in cleanrooms, hospitals, pharmaceutical factories, food factories and other places with cleanliness requirements.

[0003] Because cleanroom door frames require dust protection, they require sealing structures such as door stops. Existing cleanroom door frames are typically integrally molded, with fixing and glue injection holes typically located on the front of the door frame. This exposes these holes to direct view and creates an unsightly appearance. Currently, the main method is to attach a metal plate of the same color as the door frame over these holes. However, this disadvantage is that the holes are still visible. Summary of the Invention

[0004] In order to overcome the defects of the prior art, the present invention provides a clean door frame structure to solve the problem that the mounting holes of the door frame are exposed and unsightly.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a clean door frame structure, comprising:

[0006] A main frame, the middle of which is bent to form a main frame clamping plate and a fixed panel, and the fixed panel is provided with a plurality of mounting holes;

[0007] A secondary frame, wherein the middle portion is bent to form a secondary frame plywood and a door stop panel, a receiving groove is formed between the door stop panel and the secondary frame plywood, and a clamping area is formed between the main frame plywood and the secondary frame plywood;

[0008] A connecting frame, wherein the middle portion is bent to form a connecting panel and a connecting side panel, the connecting side panel is located in the receiving groove, and the connecting side panel is connected to the door stop panel, and the connecting panel is provided with an opening near the mounting hole;

[0009] The fixing assembly is arranged at the opening and includes a main frame fixing part and a sub-frame fixing part. One end of the sub-frame fixing part is connected to the edge of the opening, and the other end is connected to the sub-frame clamping plate. The main frame fixing part is located between the sub-frame fixing part and the fixed panel, and the main frame fixing part is connected to the fixed panel.

[0010] Furthermore, the main frame fixing member and the sub-frame fixing member are both provided with glue injection holes, and the glue injection holes of the main frame fixing member correspond to the glue injection holes of the sub-frame fixing member.

[0011] Furthermore, both the main frame fixing member and the sub-frame fixing member are provided with fixing holes, and the fixing holes of the main frame fixing member correspond to the fixing holes of the sub-frame fixing member.

[0012] Furthermore, both sides of the sub-frame fixing member are bent to form a first support portion, and the sub-frame fixing member is connected to the edge of the opening through the first support portion, and a receiving area is formed between the two first support portions;

[0013] The main frame fixing member is located in the accommodating area, and both ends of the main frame fixing member are bent to form a second supporting portion, and the main frame fixing member is connected to the fixed panel through the second supporting portion.

[0014] Furthermore, both the main frame fixing member and the sub-frame fixing member are provided with positioning holes, and the positioning hole of the main frame fixing member corresponds to the positioning hole of the sub-frame fixing member, and a positioning member is connected between the positioning hole of the main frame fixing member and the positioning hole of the sub-frame fixing member.

[0015] Furthermore, a gap is formed between the connecting panel and the door stop panel, and the fixing panel is inserted into the gap.

[0016] Furthermore, one side of the main frame clamping plate is bent to form a first clamping portion, and one side of the sub-frame clamping plate is bent to form a second clamping portion.

[0017] Furthermore, the main frame, sub-frame and connecting frame are made of galvanized sheet with a thickness of 1.2 mm, the main frame fixing parts are made of galvanized sheet with a thickness of 1.5 mm, and the sub-frame fixing parts are made of galvanized sheet with a thickness of 2.5 mm.

[0018] Furthermore, a hinge hole is provided on the fixed panel, and an escape opening is provided on the connecting panel.

[0019] The present invention has at least one of the following beneficial effects:

[0020] 1. The present invention changes the connection method of the main frame and the sub-frame, connects the main frame and the sub-frame through the main frame fixing parts, the sub-frame fixing parts and the connecting frame, and at the same time moves the mounting holes of the main frame plywood (front of the door frame) and the sub-frame plywood (front of the door frame) to the fixed panel (side of the door frame), fundamentally solving the problem of the door frame mounting holes leaking and being unsightly.

[0021] 2. Before connecting the main frame fixture and the sub-frame fixture to the main frame and sub-frame respectively, first connect and secure the main frame fixture and the sub-frame fixture together using the positioning pieces so that the glue injection holes and fixing holes on the main frame fixture and the sub-frame fixture are aligned. This prevents the glue injection holes and fixing holes of the main frame fixture and the sub-frame fixture from being misaligned during assembly due to the main frame fixture and the sub-frame fixture being connected separately. At the same time, there is no need to re-measure the position of the main frame fixture on the main frame during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view (1) of an embodiment of the present invention;

[0023] Figure 2 This is a perspective view (2) of an embodiment of the present invention;

[0024] Figure 3 A three-dimensional exploded view of an embodiment of the present invention;

[0025] Figure 4 A top view of an embodiment of the present invention;

[0026] Figure 5 is a three-dimensional diagram of a main frame fixing member in an embodiment of the present invention;

[0027] Figure 6 is a three-dimensional diagram of a sub-frame fixing member in an embodiment of the present invention;

[0028] Figure 7 This is a three-dimensional diagram of the connection between the main frame fixing member and the sub-frame fixing member in an embodiment of the present invention.

[0029] In the figure, 1-main frame, 11-main frame splint, 111-first clamping part, 12-fixed panel, 121-hinge hole, 13-mounting hole, 2-sub-frame, 21-sub-frame splint, 211-second clamping part, 22-door stop panel, 23-accommodating groove, 24-clamping area, 3-connecting frame, 31-connecting panel, 311-avoidance, 312-opening, 32-connecting side panel, 4-main frame fixing part, 41-glue injection hole, 42-fixing hole, 43-positioning hole, 44-positioning part, 45-second supporting part, 5-sub-frame fixing part, 51-first supporting part, 52-accommodating area, 6-gap. DETAILED DESCRIPTION

[0030] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. Example

[0031] As attached Figures 1 to 7As shown, the present invention provides a clean door frame structure, including a main frame 1, a sub-frame 2, a connecting frame 3 and a fixing assembly. The middle part of the main frame 1 is bent to form a main frame plywood 11 and a fixing panel 12, and a number of mounting holes 13 are opened on the fixing panel 12; the middle part of the sub-frame 2 is bent to form a sub-frame plywood 21 and a door stop panel 22, and the door stop panel 22 is used to cooperate with the clean door to play a sealing role; a receiving groove 23 is formed between the door stop panel 22 and the sub-frame plywood 21, and a clamping area 24 is formed between the main frame plywood 11 and the sub-frame plywood 21. The clamping area 24 is used to cooperate with the wall, and the door frame is clamped on the wall by the main frame plywood 11 and the sub-frame plywood 21; the middle part of the connecting frame 3 is bent to form a connecting panel 31 and a connecting side panel 32, and the connecting panel 31 is used as a carrier of the sub-frame fixing member 5. The connecting side panel 32 is located in the receiving groove 23, and the connecting The side panels 32 are welded and fixed to the door stop panel 22 to form an integrated structure with the connecting frame 3 and the sub-frame 2, and an opening 312 is provided at the connecting panel 31 near the mounting hole 13; a fixing assembly is arranged at the opening 312, including a main frame fixing part 4 and a sub-frame fixing part 5, one end of the sub-frame fixing part 5 is welded to the edge of the opening 312, and the other end is welded to the sub-frame clamping plate 21, and the sub-frame fixing part 5 further welds and fixes the connecting frame 3 and the sub-frame 2; the main frame fixing part 4 is located between the sub-frame fixing part 5 and the fixing panel 12, the main frame fixing part 4 is welded to the fixing panel 12, and the main frame fixing part 4 is used to fix the main frame 1; the main frame fixing part 4 is connected to the sub-frame fixing part 5 by drilling screws, and the drilling screws are driven into the wall by drilling nails to further fix the main frame fixing part 4 and the sub-frame fixing part 5, thereby fixing the main frame 1 and the sub-frame 2, and then forming a door frame.

[0032] In addition, as attached Figures 5 and 6 As shown, the main frame fixing member 4 and the secondary frame fixing member 5 are each provided with a glue injection hole 41. The glue injection hole 41 of the main frame fixing member 4 and the glue injection hole 41 of the secondary frame fixing member 5 are coaxial. The glue injection hole 41 is used to inject foam glue after the door frame is installed. The foam glue passes through the glue injection hole 41 of the main frame fixing member 4 and the glue injection hole 41 of the secondary frame fixing member 5 and flows into the gap between the wall and the door frame. The foam glue can firmly fix the door frame to the wall. Of course, since the main frame fixing member 4 and the secondary frame fixing member 5 are made of galvanized sheet material, in order to facilitate driving the self-drilling screw into the wall, the main frame fixing member 4 and the secondary frame fixing member 5 are each provided with a fixing hole 42. The fixing hole 42 of the main frame fixing member 4 and the fixing hole 42 of the secondary frame fixing member 5 are coaxial. The self-drilling screw passes through the fixing hole 42 to connect and fix the main frame fixing member 4 and the secondary frame fixing member 5, which is more convenient for the driller during installation without having to use too much force.

[0033] It should be noted that the positions of the mounting holes 13, the openings 312, the main frame fixing members 4, and the sub-frame fixing members 5 on the door frame correspond to each other, so that the main frame fixing members 4 and the sub-frame fixing members 5 can be operated through the mounting holes 13 and the openings 312. The mounting holes 13 on the fixed panel 12 are convenient for the installer to insert the self-drilling screws through the mounting holes 13, thereby connecting and fixing the main frame fixing members 4 and the sub-frame fixing members 5, and further driving the self-drilling screws into the wall, thereby fixing the main frame 1 and the sub-frame 2 to the wall to form the door frame. It also facilitates the installer to inject foam glue through the mounting holes 13.

[0034] The present invention changes the connection method of the main frame 1 and the sub-frame 2, connects the main frame 1 and the sub-frame 2 through the main frame fixing member 4, the sub-frame fixing member 5 and the connecting frame 3, and at the same time moves the mounting holes 13 of the main frame plywood 11 and the sub-frame plywood 21 (front face of the door frame) to the fixed panel 12 (side face of the door frame). Through the same mounting hole 13, the functions of fixing the door frame and injecting foam glue are realized, fundamentally solving the problem of the door frame mounting hole 13 leaking and being unsightly.

[0035] A further improvement is that Figures 5 and 6 As shown, the two sides of the secondary frame fixing member 5 are bent to form first support portions 51, which are welded to the edges of the opening 312. A storage area 52 is formed between the two first support portions 51. The main frame fixing member 4 is located within the storage area 52, and the two ends of the main frame fixing member 4 are bent to form second support portions 45, which are welded to the fixed panel 12. The first support portions 51 create a certain space between the connecting panel 31 and the wall to accommodate the injected foam. It should be noted that the first support portion 51 is perpendicular to the second support portion 45.

[0036] First, weld one end of the sub-frame fixing part 5 to the edge of the opening 312 of the connecting frame 3, and weld the other end to the sub-frame clamping plate 21 of the sub-frame 2, and then weld the main frame fixing part 4 to the fixed panel 12 of the main frame 1; after welding is completed, align the main frame 1 and the sub-frame 2, and the main frame fixing part 4 will enter the accommodating area 52 of the sub-frame fixing part 5, so that the glue injection hole 41 and the fixing hole 42 on the main frame fixing part 4 are aligned with the glue injection hole 41 and the fixing hole 42 of the sub-frame fixing part 5.

[0037] Of course, in order to accurately align the glue injection holes 41 and fixing holes 42 on the main frame fixing member 4 with the glue injection holes 41 and fixing holes 42 on the sub-frame fixing member 5, as shown in the attached Figures 5-7As shown, positioning holes 43 are formed on both the main frame fixing member 4 and the sub-frame fixing member 5, and the positioning holes 43 of the main frame fixing member 4 are coaxial with the positioning holes 43 of the sub-frame fixing member 5. A positioning member 44 is connected between the positioning holes 43 of the main frame fixing member 4 and the positioning holes 43 of the sub-frame fixing member 5. The positioning member 44 is a flat head screw. Before the main frame fixing member 4 and the sub-frame fixing member 5 are respectively welded to the main frame 1 and the sub-frame 2, the main frame fixing member 4 and the sub-frame fixing member 5 are first connected and fixed together by the positioning member 44, so that the glue injection holes 41 and the fixing holes 42 on the main frame fixing member 4 and the sub-frame fixing member 5 are respectively aligned, thereby avoiding the situation where the glue injection holes 41 and the fixing holes 42 of the main frame fixing member 4 and the sub-frame fixing member 5 are misaligned during assembly due to the main frame fixing member 4 being welded to the main frame 1 and the sub-frame fixing member 5 being welded to the sub-frame 2 separately.

[0038] After the injection holes 41 and the fixing holes 42 are aligned, one end of the secondary frame fixing member 5 is first welded to the edge of the opening 312 through the first support portion 51, and the other end is welded to the secondary frame clamping plate 21. Then, the fixing panel 12 of the main frame 1 is brought close to the main frame fixing member 4, and the main frame fixing member 4 is welded to the fixing panel 12 of the main frame 1 through the second support portion 45. In this way, the position of the main frame fixing member 4 on the main frame 1 and the position of the secondary frame fixing member 5 on the secondary frame 2 are determined, and there is no need to remeasure the position of the main frame fixing member 4 on the main frame 1 during installation, thus eliminating the step of measuring the position of the main frame fixing member 4 and ensuring that the corresponding holes of the main frame fixing member 4 and the secondary frame fixing member 5 are coaxial. After arriving at the installation site, the flat head screws are first removed, and after the main frame 1 and the secondary frame 2 are aligned on the wall, the flat head screws are re-locked. At this point, the main frame 1 and the sub-frame 2 have been firmly clamped to the wall. Use self-drilling screws to fix the door frame to the wall through the fixing holes 42. Finally, inject foam glue through the injection hole to complete the door frame installation.

[0039] It should be noted that the positioning hole 43 of the main frame fixing part 4 can be countersunk to ensure that the screw head of the positioning part 44 (flat head screw) is not exposed; and the positioning hole 43 of the sub-frame fixing part 5 is tapped to facilitate the positioning part 44 to connect and fix the main frame fixing part 4 and the sub-frame fixing part 5.

[0040] In addition, the positioning hole 43, the fixing hole 42 and the glue injection hole 41 can be operated through the same installation hole 13, reducing the impact of the exposed holes on the aesthetics of the door frame.

[0041] As an improvement, as shown in the attached Figure 4As shown, a gap 6 is formed between the connecting panel 31 and the door stop panel 22, and the fixed panel 12 is inserted into the gap 6. The fixed panel 12 is then welded to the door stop panel 22 to secure the connection between the main frame 1 and the sub-frame 2. In addition, one side of the main frame plywood 11 is bent to form a first clamping portion 111, and one side of the sub-frame plywood 21 is bent to form a second clamping portion 211. The first clamping portion 111 and the second clamping portion 211 cooperate with each other and clamp the wall. At the same time, the main frame 1, sub-frame 2, and connecting frame 3 are made of galvanized sheet metal with a thickness of 1.2 mm, the main frame fixing member 4 is made of galvanized sheet metal with a thickness of 1.5 mm, and the sub-frame fixing member 5 is made of galvanized sheet metal with a thickness of 2.5 mm. They have a certain load-bearing capacity to prevent the door frame from deforming during use.

[0042] As attached Figure 3 As shown, a hinge hole 121 is provided on the fixed panel 12, and the hinge hole 121 is used to install the hinge. Half of the hinge is connected to the door frame, and the other half is connected to the clean door. A avoidance opening 311 is provided on the connecting panel 31, and the avoidance opening 311 is used to avoid the hinge when the clean door is closed.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A clean door frame structure, characterized in that: include: A main frame (1), the middle of which is bent to form a main frame clamping plate (11) and a fixed panel (12), wherein the fixed panel (12) is provided with a plurality of mounting holes (13); A secondary frame (2), wherein the middle portion is bent to form a secondary frame clamping plate (21) and a door stop panel (22), a receiving groove (23) is formed between the door stop panel (22) and the secondary frame clamping plate (21), and a clamping area (24) is formed between the main frame clamping plate (11) and the secondary frame clamping plate (21); a connecting frame (3), wherein the middle portion is bent to form a connecting panel (31) and a connecting side panel (32), the connecting side panel (32) being located in the accommodating groove (23), and the connecting side panel (32) being connected to the door stop panel (22), and the connecting panel (31) being provided with an opening (312) near the mounting hole (13); a fixing assembly, arranged at the opening (312), comprising a main frame fixing member (4) and a sub-frame fixing member (5), wherein one end of the sub-frame fixing member (5) is connected to the edge of the opening (312), and the other end is connected to the sub-frame clamping plate (21), the main frame fixing member (4) is located between the sub-frame fixing member (5) and the fixing panel (12), and the main frame fixing member (4) is connected to the fixing panel (12); The main frame fixing member (4) and the auxiliary frame fixing member (5) are both provided with glue injection holes (41), and the glue injection holes (41) of the main frame fixing member (4) and the glue injection holes (41) of the auxiliary frame fixing member (5) correspond to each other; The main frame fixing member (4) and the sub-frame fixing member (5) are both provided with fixing holes (42), and the fixing holes (42) of the main frame fixing member (4) correspond to the fixing holes (42) of the sub-frame fixing member (5); The main frame fixing member (4) and the sub-frame fixing member (5) are both provided with positioning holes (43), and the positioning hole (43) of the main frame fixing member (4) corresponds to the positioning hole (43) of the sub-frame fixing member (5), and a positioning member (44) is connected between the positioning hole (43) of the main frame fixing member (4) and the positioning hole (43) of the sub-frame fixing member (5); Both sides of the sub-frame fixing member (5) are bent to form a first support portion (51), and the sub-frame fixing member (5) is connected to the edge of the opening (312) through the first support portion (51), and a receiving area (52) is formed between the two first support portions (51); The main frame fixing member (4) is located in the accommodating area (52), and both ends of the main frame fixing member (4) are bent to form a second support portion (45), and the main frame fixing member (4) is connected to the fixed panel (12) via the second support portion (45); A gap (6) is formed between the connecting panel (31) and the door stop panel (22), and the fixing panel (12) is inserted into the gap (6).

2. A clean door frame structure according to claim 1, characterized in that: One side of the main frame clamping plate (11) is bent to form a first clamping portion (111), and one side of the sub-frame clamping plate (21) is bent to form a second clamping portion (211).

3. The clean door frame structure according to claim 2, characterized in that: The main frame (1), the auxiliary frame (2) and the connecting frame (3) are made of galvanized sheets with a thickness of 1.2 mm, the main frame fixing member (4) is made of galvanized sheets with a thickness of 1.5 mm, and the auxiliary frame fixing member (5) is made of galvanized sheets with a thickness of 2.5 mm.

4. The clean door frame structure according to claim 1, characterized in that: A hinge hole (121) is provided on the fixed panel (12), and a relief opening (311) is provided on the connecting panel (31).

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