Door frame double-layered door sill structure

Abstract

The door frame double-layer door sill structure comprises a lock side frame column, a hinge side frame column, a door sill inner lining, a rear cover part and a front cover part. The hinge side frame column is arranged in parallel with the lock side frame column. The door sill inner lining is connected between the lock side frame column and the hinge side frame column. The rear cover part is arranged on one side of the door sill inner lining and is arranged in an open mode close to one side of the door sill inner lining. The front cover part is arranged on the other side of the door sill inner lining and is arranged in an open mode close to one side of the door sill inner lining. The rear cover part is connected with the front cover part and a placing cavity is formed between the rear cover part and the front cover part. The door sill inner lining is arranged in the placing cavity. The rear cover part and the front cover part are integrally stressed with the door sill inner lining without cutting the internal load-bearing member door sill inner lining. The rear cover part and the front cover part are integrally stressed with the door sill inner lining without cutting the internal load-bearing member door sill inner lining. The production operation is greatly simplified. The product quality is ensured and the production cost is reduced in the production process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel door frame security doors, and particularly relates to a door frame double-layer door sill structure. BACKGROUND

[0002] Currently, there are two main manufacturing processes for the double-layer lower frame of high-end security doors with metal door frames on the market. The first process is to simultaneously weld the stainless steel door sill, the inner reinforcing framework and the whole frame. The second process is to simultaneously weld the inner metal door sill and the whole frame, assemble them after finishing the surface, cut the inner metal door sill in the middle, and then point weld them again after wrapping the stainless steel surface layer.

[0003] However, in the first process, the surface coating of the stainless steel door sill is not easy to clean, which affects the appearance of the product. In the second process, the cutting of the inner metal door sill and the wrapping of the stainless steel surface layer are followed by repair welding, which affects the overall strength of the product and makes the process complex and the cost high. Therefore, a double-layer lower frame structure is needed that can ensure the appearance of the product and the overall strength of the product. SUMMARY

[0004] Therefore, the technical problem to be solved by the present application is to provide a double-layer lower frame structure that can ensure the appearance of the product and the overall strength of the product.

[0005] To this end, the present application provides a door frame double-layer door sill structure, which comprises:

[0006] a lock side frame column;

[0007] a hinge side frame column arranged in parallel with the lock side frame column;

[0008] a door sill lining connected between the lock side frame column and the hinge side frame column;

[0009] Further comprising:

[0010] a rear wrapping part arranged on one side of the door sill lining, and the rear wrapping part is arranged in an open manner on the side close to the door sill lining;

[0011] a front wrapping part arranged on the other side of the door sill lining and arranged opposite to the rear wrapping part, and the front wrapping part is arranged in an open manner on the side close to the door sill lining;

[0012] wherein the rear wrapping part and the front wrapping part are connected and form a placement cavity therebetween, and the door sill lining is arranged in the placement cavity.

[0013] Optionally,

[0014] the door sill lining is provided with a plurality of positioning protrusions at both ends;

[0015] The lock side frame column and the hinge side frame column are provided with a plurality of positioning holes near the inner side of the threshold, and the positioning convex points are adapted to be inserted into the positioning holes and protrude from the positioning holes.

[0016] Optionally, the threshold inner liner comprises:

[0017] an upper panel provided with a plurality of positioning convex points at both ends;

[0018] a front panel provided with a plurality of positioning convex points at both ends, connected to one side of the upper panel, and bent towards the ground;

[0019] a rear panel provided with a plurality of positioning convex points at both ends, connected to the other side of the upper panel, and bent towards the ground.

[0020] Optionally,

[0021] an end of the rear panel away from the upper panel is bent towards the side close to the front panel to form a first fixing part, which is adapted to be connected to the rear package.

[0022] Optionally, the rear package comprises:

[0023] a rear side panel arranged in parallel with the rear panel;

[0024] a rear upper panel connected to the rear side panel and bent towards the front package side to be fitted to the upper panel;

[0025] a rear fixing panel connected to the rear side panel and bent towards the front package side, the rear fixing panel and the rear upper panel being arranged on opposite sides of the rear side panel, and the rear fixing panel being connected to the first fixing part.

[0026] Optionally, an end of the front panel away from the upper panel is bent towards the side close to the rear panel to form a second fixing part, which is connected to the front package.

[0027] Optionally, the front package comprises:

[0028] a front side panel arranged in parallel with the front panel;

[0029] a front upper panel connected to the front side panel and bent towards the rear package side to be fitted to the upper panel;

[0030] a front fixing panel connected to the front side panel and bent towards the rear package side, the front fixing panel and the front upper panel being arranged on opposite sides of the front side panel, and the front fixing panel being connected to the second fixing part.

[0031] Optionally, a third fixing part extending towards the threshold lining is arranged on the rear upper plate of the rear package, and a fourth fixing part extending away from the threshold lining is arranged on the front upper plate, and the third fixing part is connected with the fourth fixing part.

[0032] Optionally, a fixing connecting part is further arranged on the threshold lining, and the lock side frame column and the hinge side frame column are provided with plug-in holes suitable for the fixing connecting part.

[0033] Optionally, a fixing side plate is arranged on both sides of the fixing connecting part, and the fixing side plate is connected with the front package and the rear package.

[0034] The door frame double-layer threshold structure has the following advantages.

[0035] 1. The door frame double-layer threshold structure comprises a lock side frame column, a hinge side frame column, a threshold lining, a rear package and a front package, the hinge side frame column and the lock side frame column are arranged side by side, the threshold lining is connected between the lock side frame column and the hinge side frame column, the rear package is arranged on one side of the threshold lining, and the side of the rear package close to the threshold lining is arranged in an open manner, the front package is arranged on the other side of the threshold lining and is arranged opposite to the rear package, and the side of the front package close to the threshold lining is arranged in an open manner, wherein the rear package is connected with the front package, and a placing cavity is enclosed between the rear package and the front package, and the threshold lining is arranged in the placing cavity.

[0036] The door frame double-layer threshold structure has the following advantages.

[0037] 2. The door frame double-layer threshold structure comprises a lock side frame column, a hinge side frame column, a threshold lining, a rear package and a front package, the hinge side frame column and the lock side frame column are arranged side by side, the threshold lining is connected between the lock side frame column and the hinge side frame column, the rear package is arranged on one side of the threshold lining, and the side of the rear package close to the threshold lining is arranged in an open manner, the front package is arranged on the other side of the threshold lining and is arranged opposite to the rear package, and the side of the front package close to the threshold lining is arranged in an open manner, wherein the rear package is connected with the front package, and a placing cavity is enclosed between the rear package and the front package, and the threshold lining is arranged in the placing cavity.

[0038] The door frame double-layered door sill structure is provided with a plurality of positioning protrusions at both ends of the door sill lining, and a plurality of positioning holes are arranged on the lock side frame column and the hinge side frame column close to the door sill lining side. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings required to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0040] Figure 1 An exploded view of the door frame double-layered door sill structure provided in the embodiments of the present application;

[0041] Figure 2 A cooperation schematic view of the lock side frame column, the hinge side frame column and the door sill lining in the door frame double-layered door sill structure provided in the embodiments of the present application;

[0042] Figure 3 A cooperation schematic view of the lock side frame column, the hinge side frame column, the door sill lining and the rear package in the door frame double-layered door sill structure provided in the embodiments of the present application; Figure 2 An enlarged view of the structure at circle A;

[0043] Figure 4 A cooperation schematic view of the lock side frame column, the hinge side frame column, the door sill lining and the rear package in the door frame double-layered door sill structure provided in the embodiments of the present application;

[0044] Figure 5 An enlarged view of the structure at circle B; Figure 4 An enlarged view of the structure at circle B;

[0045] Figure 6 An enlarged view of the structure at circle C; Figure 4 An enlarged view of the structure at circle C;

[0046] Figure 7 A structure schematic view of the front package in the door frame double-layered door sill structure provided in the embodiments of the present application;

[0047] Figure 8 A structure schematic view of the front package in the door frame double-layered door sill structure provided in the embodiments of the present application;

[0048] Explanation of reference signs:

[0049] 1 - lock side frame column;

[0050] 2-hinge-side stiles;

[0051] 3-threshold inner liner; 31-upper panel; 32-front panel; 33-rear panel; 34-first fixing part; 35-second fixing part;

[0052] 4-rear package; 41-rear side panel; 42-rear upper panel; 43-rear fixing panel; 44-third fixing part;

[0053] 5-front package; 51-front side panel; 52-front upper panel; 53-front fixing panel; 54-fourth fixing part; 6-fixing connecting part; 61-fixing side panel. DETAILED DESCRIPTION

[0054] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0055] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0056] EMBODIMENT

[0057] The present embodiment provides a door frame double-layer threshold structure, as shown in Figure 1 and Figure 2 , which comprises a lock-side stile 1, a hinge-side stile 2, a threshold inner liner 3, a rear package 4, and a front package 5. The hinge-side stile 2 is arranged side by side with the lock-side stile 1. The threshold inner liner 3 is connected between the lock-side stile 1 and the hinge-side stile 2. The rear package 4 is arranged on the right side of the threshold inner liner 3. The front package 5 is arranged on the left side of the threshold inner liner 3 and is arranged opposite to the rear package 4.

[0058] Further, as shown in Figure 3As shown, the threshold lining 3 comprises an upper panel 31, a front panel 32 and a rear panel 33. The upper panel 31 is placed in the middle, the front panel 32 is a bending panel formed by bending the left side edge of the upper panel 31 towards the ground, i.e. the downward direction in the figure, and the rear panel 33 is a bending panel formed by bending the right side edge of the upper panel 31 downwards. The front panel 32 and the rear panel 33 are perpendicular to each other, so that the upper panel 31, the front panel 32 and the rear panel 33 form a downwardly open U-shaped structure.

[0059] Further, as shown in Figure 1 and Figure 3 , the upper panel 31, the front panel 32 and the rear panel 33 are provided with a plurality of positioning protrusions at both ends in the length direction, and the lock side frame column 1 and the hinge side frame column 2 are provided with a plurality of positioning holes close to the side of the threshold lining 3. During installation, the threshold lining 3 is pre-positioned by inserting the positioning protrusions into the positioning holes, and then the positioning protrusions protruding out of the positioning holes are bent to pre-fix the threshold lining 3 with the lock side frame column 1 and the hinge side frame column 2, and then the ends of the threshold lining 3 are welded with the lock side frame column 1 and the hinge side frame column 2 at the abutting positions, to complete the complete fixing of the threshold lining 3 with the lock side frame column 1 and the hinge side frame column 2.

[0060] Still referring to Figure 3 , the end of the rear panel 33 away from the upper panel 31 is bent towards the side close to the front panel 32 to form a first fixing portion 34, and the end of the front panel 32 away from the upper panel 31 is bent towards the side close to the rear panel 33 to form a second fixing portion 35, and the second fixing portion 35 is connected with the front cover 5. A plurality of through holes are formed in the first fixing portion 34 and the second fixing portion 35.

[0061] As shown in Figure 4 and Figure 5 , the rear cover 4 comprises a rear side panel 41, a rear upper panel 42 and a rear fixing panel 43. The rear side panel 41 is arranged at the right side of the rear panel 33, the rear upper panel 42 is a bending panel formed by bending the upper side edge of the rear side panel 41 to the left, and the rear fixing panel 43 is a bending panel formed by bending the lower side edge of the rear side panel 41 to the left, so that the side close to the threshold lining 3 of the rear cover 4 is arranged in an open manner, and a plurality of through holes are formed in the rear fixing panel 43. During installation of the rear cover 4, the through holes in the first fixing portion 34 of the threshold lining 3 are aligned with the through holes in the rear fixing panel 43 of the rear cover 4, and then screws are passed through the through holes to fix the bottom of the threshold lining 3 with the bottom of the rear cover 4.

[0062] As shown in Figure 7As shown, the front package 5 includes a front side panel 51, a front upper panel 52 and a front fixed panel 53, wherein the front side panel 51 is arranged on the left side of the front panel 32, the front upper panel 52 is a bending panel formed by bending the upper side of the front side panel 51 to the right, and the front fixed panel 53 is a bending panel formed by bending the lower side of the front side panel 51 to the right, so that the front package 5 is arranged in an open manner close to the side of the rocker inner liner 3, and a plurality of through holes are arranged on the front fixed panel 53. When the front package 5 is installed, the through holes on the second fixed part 35 in the rocker inner liner 3 are aligned with the through holes on the front fixed panel 53 in the front package 5, and then the rocker inner liner 3 and the front package 5 at the bottom are fixed by screws passing through the through holes.

[0063] Further, as shown in Figure 6 As shown, the rear upper panel 42 of the rear package 4 is provided with a third fixed part 44 extending towards the rocker inner liner 3, and the third fixed part 44 is a plate structure, as shown in Figure 7 As shown, the front upper panel 52 of the front package 5 is provided with a fourth fixed part 54 extending away from the rocker inner liner 3, and the fourth fixed part 54 is also a plate structure, the width of the third fixed part 44 is greater than or equal to that of the fourth fixed part 54, and through holes are arranged on the third fixed part 44 and the fourth fixed part 54. After the first fixed part 34 in the rocker inner liner 3 and the rear fixed panel 43 in the rear package 4, and the second fixed part 35 in the rocker inner liner 3 and the front fixed panel 53 in the front package 5 are fixedly connected by screws, the third fixed part 44 and the fourth fixed part 54 are arranged to be able to abut each other, and then the third fixed part 44 and the fourth fixed part 54 are fixedly connected by screws passing through the through holes on the third fixed part 44 and the fourth fixed part 54, thereby realizing the connection of the upper parts of the front package 5 and the rear package 4. At this time, the front package 5 and the rear package 4 are sleeved on the rocker inner liner 3.

[0064] Further, as shown in Figure 1 and Figure 8 As shown, the fixed connecting part 6 is a downwardly open U-shaped structure, and the lock side frame column 1 and the hinge side frame column 2 close to the side of the rear package 4 are provided with plug-in holes suitable for the plug-in of the fixed connecting part 6. After the fixed connecting part 6 is plugged into the rear package 4 through the plug-in holes, the fixed side plate 61 on the left side of the fixed connecting part 6 is arranged on the right side of the third fixed part 44 in the rear package 4, and the fixed side plate 61 is also provided with a through hole, so that when the third fixed part 44 and the fourth fixed part 54 are fastened by screws, the fixed side plate 61 and the third fixed part 44 are also fixed, and the upper end of the fixed connecting part 6 abuts against the inner wall of the rear package 4, and the lower end of the fixed connecting part 6 abuts against the upper surface of the rocker inner liner 3. Therefore, the fixed connecting part 6 not only effectively improves the connection strength of the rear package 4 and the front package 5, but also effectively supports the inner space of the rear package 4, preventing the rear package 4 from being deformed inwardly due to being stepped on.

[0065] The application completely welds the internal force structure member door sill lining 3 with the two end lock side frame columns 1 and the hinge side frame column 2, and does not cut the internal load bearing member door sill lining 3, so that the stainless steel outer package sheet metal parts rear package part 4 and front package part 5 and the internal load bearing member door sill lining 3 integrally bear force to form an integral whole. The split package structure design well solves the use requirement and strength requirement of the door sill, and greatly simplifies the production operation, so that the product can guarantee the quality and reduce the production cost in the production process.

[0066] Obviously, the above embodiments are only examples for clearly illustrating, but not limitation to the embodiments. Other different forms of changes or variations can be made by those skilled in the art on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A double-threshold structure for a door frame, comprising: Lock side frame post; The hinge side frame post is arranged side by side with the lock side frame post; Threshold lining, connected between the lock side frame post and the hinge side frame post; Its characteristic is that it further includes: The rear cover is located on one side of the sill lining, and the rear cover is open on the side closest to the sill lining. The front cover is located on the other side of the sill lining and is positioned opposite to the rear cover, with the front cover having an opening on the side closest to the sill lining. The rear package is connected to the front package and the two form a placement cavity, and the threshold is lined inside the placement cavity; The threshold liner includes; The top panel has several positioning protrusions at both ends; The front panel has several positioning protrusions at both ends. The front panel is connected to one side of the upper panel, and the front panel is bent towards the ground. The rear panel has several positioning protrusions at both ends, the front panel is connected to the other side of the upper panel, and the rear panel is bent towards the ground. The rear panel is bent from the end away from the upper panel toward the side closer to the front panel to form a first fixing part, which is adapted to be connected to the rear package. The front panel is bent from the end away from the top panel toward the side closer to the rear panel to form a second fixing part, and the second fixing part is connected to the front package. The subsequent package includes: The rear panel is arranged parallel to the rear panel. The rear upper panel is connected to the rear side panel and bent toward the front package side to fit the upper panel. The rear fixing plate is connected to the rear side panel and bent toward the front package side. The rear fixing plate and the rear upper plate are located on opposite sides of the rear side panel. The rear fixing plate is connected to the first fixing part. The front package includes: The front panel is arranged parallel to the front panel; The front upper panel is connected to the front side panel and bent toward the rear package side to fit the upper panel. A front fixing plate is connected to the front side panel and bent toward the rear package side. The front fixing plate and the front upper plate are located on opposite sides of the front side panel. The front fixing plate is connected to the second fixing part. The rear upper plate of the rear package is provided with a third fixing part extending toward the sill lining, and the front upper plate is provided with a fourth fixing part extending away from the sill lining. The third fixing part is connected to the fourth fixing part. The fixing connector is a U-shaped structure with the opening facing downwards. The lock side frame post and the hinge side frame post are provided with insertion holes suitable for the fixing connector to be inserted near the rear package. After the fixing connector is inserted into the rear package through the insertion holes, the fixing side plate on the left side of the fixing connector is located on the right side of the third fixing part in the rear package. The fixing side plate is also provided with through holes. When the third fixing part and the fourth fixing part are tightened by screws, the fixing side plate will also be fixed to the third fixing part. The upper end of the fixing connector abuts against the inner wall of the rear package, and the lower end of the fixing connector abuts against the upper surface of the sill lining.

2. The double-layer threshold structure of the door frame according to claim 1, characterized in that, The threshold lining has several positioning protrusions at both ends. Both the lock side frame post and the hinge side frame post are provided with a number of positioning holes near the inner side of the threshold lining. The positioning protrusions are adapted to be inserted into the positioning holes and protrude from the positioning holes.

3. The double-layer threshold structure of the door frame according to claim 1, characterized in that, The fixed connector has fixed side plates on both sides, and the fixed side plates are connected to the front package and the rear package.

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