A combined installation and adjustment system for door body and door frame

Abstract

This invention discloses a combined installation and adjustment system for a door and door frame, comprising a door frame and a door body. A door frame fixing bracket is fixedly installed on the door frame, and a hinge pin connecting seat is fixedly installed on the right side of the door body. A three-way adjusting slide assembly is provided between the door frame fixing bracket and the hinge pin connecting seat. A collapsible locking mechanism is installed between the three-way adjusting slide assembly, the door frame fixing bracket, and the hinge pin connecting seat. The three-way adjusting slide assembly includes an upper mounting plate and a lower mounting plate, and a rotating column is rotatably connected between the upper and lower mounting plates. This invention allows for independent adjustment of the door body in three directions with high adjustment precision, significantly shortening the installation period; it greatly reduces impact damage, with controllable failure modes, preventing catastrophic consequences such as door leaf detachment, and reducing maintenance costs and difficulty; it provides triple impact protection, effectively reducing peak impact loads while also reducing vibration and noise generated by impacts.

Description

Technical Field

[0001] This invention relates to the field of door assembly technology, and more specifically, to a combined installation and adjustment system for a door and a door frame. Background Technology

[0002] In the fields of industrial protective doors, explosion-proof doors, air-raid shelter doors, and special airtight doors, the installation and adjustment system of the door body and door frame is crucial; however, such systems on the market currently have many problems that urgently need to be solved.

[0003] Regarding installation and adjustment, traditional installation and adjustment systems mostly support only unidirectional or limited two-directional fine-tuning. This limited adjustment capability is insufficient to effectively compensate for the unavoidable installation errors of the door frame and door leaf during on-site construction. For example, in actual construction, due to factors such as measurement errors and construction precision, the positions of the door frame and door leaf may deviate. Traditional systems cannot fully adjust for these deviations, leading to frequent problems such as uneven door gaps, jamming during opening and closing, and seal failure. This not only affects the normal function of the door but also significantly prolongs the installation period, increases rework rates, and raises construction costs.

[0004] Regarding impact resistance: Traditional hinges generally adopt a "hard-resistance" design concept. When encountering strong external forces such as shock waves, the shock wave load will directly act on the hinge body and the connecting node. This design makes the hinge and connecting node the stress concentration point, which can easily cause catastrophic damage such as hinge breakage, door leaf detachment, and partial tearing of the door frame. Once such a situation occurs, it will not only pose a serious threat to the safety of people and property, but also lead to a significant increase in maintenance costs and a significantly prolonged recovery period. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a door body and door frame combined installation and adjustment system, which solves the technical problems of limited adjustment direction, difficulty in compensating for installation errors, and poor impact resistance of traditional door body and door frame installation and adjustment systems.

[0006] To solve the above problems, the present invention adopts the following technical solution; A door and door frame combined installation and adjustment system includes a door frame and a door body. A door frame fixing bracket is fixedly installed on the door frame. A hinge shaft connecting seat is fixedly installed on the right side of the door body. A three-way adjusting slide assembly is provided between the door frame fixing bracket and the hinge shaft connecting seat. Collapsible locking mechanisms are installed between the three-way adjusting slide assembly, the door frame fixing bracket, and the hinge shaft connecting seat. The three-way adjustable slide assembly includes an upper mounting plate and a lower mounting plate. A rotating column is rotatably connected between the upper mounting plate and the lower mounting plate. The opposite sides of the upper mounting plate and the lower mounting plate are respectively attached to the door frame fixing bracket and the hinge shaft connecting seat. A lifting bolt is inserted through the rotating column. The two ends of the lifting bolt pass through the adjacent upper mounting plate, lower mounting plate, door frame fixing bracket or hinge shaft connecting seat respectively. The collapsible locking mechanism consists of two sets of collapsible locking bolts. The two sets of collapsible locking bolts are located on both sides of the door frame fixing bracket and the hinge shaft connecting seat and pass through the door frame fixing bracket and the hinge shaft connecting seat. The two sets of collapsible locking bolts are threaded to the adjacent upper mounting plate and lower mounting plate respectively. The door frame fixing bracket and the hinge shaft connecting seat are integrally formed with an extension block. An adjusting bolt is installed on the extension block. One end of the adjusting bolt is engaged with the adjacent upper mounting plate or lower mounting plate.

[0007] As a further description of the above technical solution: The door body includes a door leaf and a connecting plate. The door leaf is composed of a door frame filled with absorbent blocks to form the main body, and then a skin is cast. The connecting plate is fixedly connected with evenly distributed connecting rods. The end of the connecting rod away from the connecting plate passes through the door leaf and extends into the frame to slide and connect with the frame. A fixing screw is rotatably installed on the hinge shaft connecting seat. The fixing screw passes through the connecting plate and is threadedly connected to the door leaf.

[0008] As a further description of the above technical solution: Both the door frame fixing bracket and the hinge shaft connecting seat are provided with a first strip-shaped through groove. The long axis of the first strip-shaped through groove is parallel to the direction of the adjacent adjusting bolt. The lifting bolt is inserted into the first strip-shaped through groove. Both sides of the door frame fixing bracket and the hinge shaft connecting seat are provided with a second strip-shaped barrel groove. The collapsible locking bolt is inserted into the inner side of the second strip-shaped barrel groove.

[0009] As a further description of the above technical solution: Each of the two adjacent extension blocks has a slot on its opposite side, and the adjusting bolt is located in the slot and makes smooth contact with the inner wall of the slot.

[0010] As a further description of the above technical solution: Both the upper and lower mounting plates are provided with T-shaped through slots, and the end of the adjusting bolt away from the extension block is engaged with the inner side of the T-shaped through slot.

[0011] As a further description of the above technical solution: The right side of the connecting plate is integrally formed with an edge, which wraps around the outside of the door leaf and is slidably connected to the door leaf.

[0012] As a further description of the above technical solution: A connecting hole is provided on the left side of the door leaf, and a nut is fixedly installed inside the connecting hole. The end of the fixing screw located inside the door leaf is threadedly connected to the nut.

[0013] As a further description of the above technical solution: A polyurethane buffer pad is fixedly installed on the door frame, and both sides of the back of the door are in contact with the polyurethane buffer pad.

[0014] Compared with the prior art, the advantages of this invention are: (1) This solution allows for independent adjustment in all three directions with high precision, solving problems such as uneven door gaps, sealing failure, and switch jamming caused by on-site installation errors, and greatly shortening the installation period.

[0015] (2) This solution designs the low-cost, standardized locking bolts as the predetermined failure point, achieving the protection effect of "sacrificing pawns to save the chariot". Compared with the traditional hard-resistance design, it avoids structural damage to the hinge body, door leaf and door frame, greatly reduces the loss after impact, the failure mode is controllable, and there will be no catastrophic consequences such as door leaf falling off. It reduces maintenance costs and maintenance difficulty, and can be restored to use by simply replacing the bolts.

[0016] (3) This solution effectively reduces the peak impact load through triple protection of door body buffer, primary energy release by collapse bolt and secondary buffer of polyurethane gasket, while also reducing the vibration and noise generated by the impact. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection structure of the door frame fixing bracket, hinge shaft connecting seat and three-way adjusting slide assembly of the present invention. Figure 3 This is a top sectional view of the mounting plate of the present invention; Figure 4 This is a frontal sectional view of the door structure of the present invention.

[0018] Explanation of the labels in the diagram: 1. Door frame; 2. Door body; 21. Door leaf; 211. Connecting hole; 212. Nut; 22. Connecting plate; 221. Edge banding; 23. Connecting rod; 24. Fixing screw; 3. Door frame fixing bracket; 4. Hinge shaft connecting seat; 5. Three-way adjusting slide assembly; 51. Upper mounting plate; 52. Lower mounting plate; 53. Rotating column; 54. Lifting bolt; 55. T-shaped through groove; 6. Collapsible locking mechanism; 61. Collapsible locking bolt; 7. Extension block; 71. Slot; 8. Adjusting bolt; 9. First strip through groove; 10. Polyurethane buffer pad; 11. Second strip through groove. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] Please see Figure 1-4 The present invention provides Embodiment 1: A door and door frame combined installation and adjustment system includes a door frame 1 and a door body 2. A door frame fixing bracket 3 is fixedly installed on the door frame 1. A hinge shaft connecting seat 4 is fixedly installed on the right side of the door body 2. A three-way adjustment slide assembly 5 is provided between the door frame fixing bracket 3 and the hinge shaft connecting seat 4. A collapsible locking mechanism 6 is installed between the three-way adjustment slide assembly 5, the door frame fixing bracket 3, and the hinge shaft connecting seat 4. The three-way adjustable slide assembly 5 includes an upper mounting plate 51 and a lower mounting plate 52. A rotating column 53 is rotatably connected between the upper mounting plate 51 and the lower mounting plate 52. The opposite sides of the upper mounting plate 51 and the lower mounting plate 52 are respectively attached to the door frame fixing bracket 3 and the hinge shaft connecting seat 4. A lifting bolt 54 is inserted through the rotating column 53. The two ends of the lifting bolt 54 pass through the adjacent upper mounting plate 51, lower mounting plate 52, door frame fixing bracket 3 or hinge shaft connecting seat 4 respectively. The collapsible locking mechanism 6 consists of two sets of collapsible locking bolts 61. The two sets of collapsible locking bolts 61 are located on both sides of the door frame fixing bracket 3 and the hinge shaft connecting seat 4 and pass through the door frame fixing bracket 3 and the hinge shaft connecting seat 4. The two sets of collapsible locking bolts 61 are threadedly connected to the adjacent upper mounting plate 51 and lower mounting plate 52 respectively. The door frame fixing bracket 3 and the hinge shaft connecting seat 4 are integrally formed with extension blocks 7. Adjusting bolts 8 are installed on the extension blocks 7. One end of the adjusting bolts 8 is engaged with the adjacent upper mounting plate 51 or lower mounting plate 52.

[0021] This invention employs a "layered slide + bolt push" structure to achieve independent adjustment in three directions without interference. X-axis forward and backward adjustment: Loosen the collapsible locking bolts 61 on both sides of the door frame fixing bracket 3, rotate the adjusting bolt 8 on the door frame fixing bracket 3, and by rotating the adjusting bolt 8, push the middle three-way adjusting slide assembly 5 to move in the front and back direction, and adjust the front and back gap between the door body 2 and the door frame 1. The adjustment range is ±10mm. Y-axis left and right adjustment: Loosen the collapsible locking bolts 61 on both sides of the hinge connecting seat 4, rotate the adjusting bolt 8 on the collapsible locking bolt 61, and by rotating the adjusting bolt 8, push the middle three-way adjusting slide assembly 5 to move in the front and back direction to adjust the left and right position of the door body 2 to ensure that the door gap is uniform, with an adjustment range of ±10mm. Z-adjustment: Tighten the lifting bolt 54 to change the gap between the upper mounting plate 51 and the lower mounting plate 52, thereby changing the height interval between the door frame fixing bracket 3 and the hinge shaft connecting seat 4, and thus adjusting the height position of the door body 2.

[0022] After adjustment, remove the adjusting bolt 8 and tighten the collapsible locking bolts 61 on both sides to lock the three-way adjusting slide assembly 5 in the target position to ensure rigidity for daily use. The collapsible locking bolts 61 on both sides rigidly connect the three-way adjustable slide assembly 5 to the door frame fixed bracket 3. The overall rigidity of the system meets the requirements of daily door opening and closing and static load bearing, without loosening or deformation. It realizes independent and high-precision adjustment of the door body 2 in three directions: front and back, left and right, and up and down, and compensates for installation errors within ±10mm. It solves problems such as uneven door gaps, sealing failure, and opening and closing jamming caused by on-site installation errors, and greatly shortens the installation period.

[0023] Both the door frame fixing bracket 3 and the hinge shaft connecting seat 4 are provided with a first strip-shaped through groove 9. The long axis of the first strip-shaped through groove 9 is parallel to the direction of the adjacent adjusting bolt 8. The lifting bolt 54 is inserted into the first strip-shaped through groove 9. Both sides of the door frame fixing bracket 3 and the hinge shaft connecting seat 4 are provided with a second strip-shaped barrel groove 11. The collapsible locking bolt 61 is inserted into the inner side of the second strip-shaped barrel groove 11. The first strip groove 9 is used for the lifting bolt 54 to pass through, and it is convenient to turn the lifting bolt 54 to adjust the height of the door body 2. At the same time, during the movement of the three-way adjusting slide assembly 5 in the front, back, left and right, the lifting bolt 54 has a certain amount of room to move in the first strip groove 9, so as to avoid obstructing the adjustment of the three-way adjusting slide assembly 5 and meet the three-way adjustment requirements. The second strip groove 11 is similar.

[0024] Each of the two adjacent extension blocks 7 has a slot 71 on its opposite side, and the adjusting bolt 8 is located in the slot 71 and makes smooth contact with the inner wall of the slot 71. Both the upper mounting plate 51 and the lower mounting plate 52 are provided with T-shaped through slots 55, and the end of the adjusting bolt 8 away from the extension block 7 is engaged with the inner side of the T-shaped through slot 55. The slot 71 and the T-shaped through slot 55 allow the adjusting bolt 8 to be removed from the extension block 7, the upper mounting plate 51, and the lower mounting plate 52. When adjustment is needed, one end of the adjusting bolt 8 is inserted into the T-shaped through slot 55, while the other end is restricted by the slot 71. Tightening the nut on the adjusting bolt 8 pushes and pulls the upper mounting plate 51 and the lower mounting plate 52, thereby completing the adjustment of the three-way adjusting slide assembly 5. Removing the adjusting bolt 8 will not affect the collapse protection function of the collapse locking bolt 61, and the adjusting bolt 8 is common and easy to replace for adjustment.

[0025] Please see Figure 1-4 Based on Example 1, the present invention also provides Example 2: The door body 2 includes a door leaf 21 and a connecting plate 22. The door leaf 21 is composed of a door frame filled with absorbent blocks to form the main body and then cast with a skin. The connecting plate 22 is fixedly connected with evenly distributed connecting rods 23. The end of the connecting rod 23 away from the connecting plate 22 passes through the door leaf 21 and extends into the frame to slide and connect with the frame. The hinge connecting seat 4 is rotatably installed with a fixing screw 24. The fixing screw 24 passes through the connecting plate 22 and is threadedly connected to the door leaf 21. Since the left and right door gaps are adjusted after the door leaf 21 is positioned by the three-way adjusting slide assembly 5, in actual use, it is often necessary to reduce or eliminate door gaps. This application adjusts the gap between the hinge shaft connecting seat 4 and the connecting plate 22 by turning the fixing screw 24, utilizing the rotatable connection between the fixing screw 24 and the hinge shaft connecting seat 4, and the threaded connection between the fixing screw 24 and the connecting plate 22, thereby slightly increasing the width of the door body 2 and filling the door gap according to the door gap requirements. At the same time, the increased gap between the hinge shaft connecting seat 4 and the connecting plate 22 can increase the buffer space, which can weaken the impact force to a certain extent when the door body is impacted.

[0026] The right side of the connecting plate 22 is integrally formed with an edge band 221, which wraps around the outside of the door leaf 21 and is slidably connected to the door leaf 21.

[0027] A connecting hole 211 is provided on the left side of the door leaf 21. A nut 212 is fixedly installed inside the connecting hole 211. One end of the fixing screw 24 located inside the door leaf 21 is threadedly connected to the nut 212.

[0028] A polyurethane buffer pad 10 is fixedly installed on the door frame 1, and both sides of the back of the door body 2 are in contact with the polyurethane buffer pad 10; both sets of collapsible locking bolts 61 are shear bolts. When the door 2 is subjected to a shock wave, the huge backward impact force is first transmitted to the collapsible locking bolts 61 on both sides. The customizable collapsible locking bolts 61, after precise strength calculation and heat treatment process design, deform under the preset impact load, such as the corresponding 0.1MPa shock wave pressure, to make room for adjustment of forward and backward movement, and become the "sacrificial part" of the system. After the collapse locking bolt 61 is deformed, the three-way adjusting slide assembly 5 loses its lateral constraint. The entire door body 2, together with the hinge shaft connecting seat 4, moves smoothly backward along the X direction towards the door frame 1. At this time, the impact force is no longer concentrated at the hinge shaft connecting seat 4 node, but is evenly transmitted to the entire plane of the door frame 1 through the large area contact surface at the bottom of the three-way adjusting slide assembly 5, and finally distributed to the entire structure of the door frame 1. When the three-way adjustable slide assembly 5 moves backward to its limit position, the high-elasticity polyurethane buffer pad 10 at the bottom is compressed to absorb the remaining impact energy, while limiting the maximum backward movement of the door body 2 to prevent the door body 2 from rigidly colliding with the door frame 1.

[0029] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A door and door frame combined installation adjustment system, comprising a door frame (1) and a door body (2), characterized in that: A door frame fixing bracket (3) is fixedly installed on the door frame (1), and a hinge shaft connecting seat (4) is fixedly installed on the right side of the door body (2). A three-way adjusting slide assembly (5) is provided between the door frame fixing bracket (3) and the hinge shaft connecting seat (4). A collapsible locking mechanism (6) is installed between the three-way adjusting slide assembly (5), the door frame fixing bracket (3), and the hinge shaft connecting seat (4). The three-way adjustable slide assembly (5) includes an upper mounting plate (51) and a lower mounting plate (52). A rotating column (53) is rotatably connected between the upper mounting plate (51) and the lower mounting plate (52). The opposite sides of the upper mounting plate (51) and the lower mounting plate (52) are respectively attached to the door frame fixing bracket (3) and the hinge shaft connecting seat (4). A lifting bolt (54) is inserted on the rotating column (53). The two ends of the lifting bolt (54) pass through the adjacent upper mounting plate (51), lower mounting plate (52), door frame fixing bracket (3) or hinge shaft connecting seat (4). The collapsible locking mechanism (6) consists of two sets of collapsible locking bolts (61). The two sets of collapsible locking bolts (61) are located on both sides of the door frame fixing bracket (3) and the hinge shaft connecting seat (4) and pass through the door frame fixing bracket (3) and the hinge shaft connecting seat (4). The two sets of collapsible locking bolts (61) are threadedly connected to the adjacent upper mounting plate (51) and lower mounting plate (52). The door frame fixing bracket (3) and the hinge shaft connecting seat (4) are integrally formed with an extension block (7). An adjusting bolt (8) is installed on the extension block (7). One end of the adjusting bolt (8) is engaged with the adjacent upper mounting plate (51) or lower mounting plate (52).

2. A door and door frame combination mounting adjustment system according to claim 1 wherein: The door body (2) includes a door leaf (21) and a connecting plate (22). The door leaf (21) is composed of a door frame filled with absorbent blocks to form the main body and then cast with a skin. The connecting plate (22) is fixedly connected with evenly distributed connecting rods (23). The end of the connecting rod (23) away from the connecting plate (22) passes through the door leaf (21) and extends into the frame to slide with the frame. The hinge connecting seat (4) is rotatably installed with a fixing screw (24). The fixing screw (24) passes through the connecting plate (22) and is threadedly connected to the door leaf (21).

3. A door and door frame combination mounting adjustment system according to claim 1 wherein: The door frame fixing bracket (3) and the hinge shaft connecting seat (4) are both provided with a first strip-shaped through groove (9). The long axis of the first strip-shaped through groove (9) is parallel to the direction of the adjacent adjusting bolt (8). The lifting bolt (54) is inserted in the first strip-shaped through groove (9). The door frame fixing bracket (3) and the hinge shaft connecting seat (4) are both provided with a second strip-shaped barrel groove (11). The collapsible locking bolt (61) is inserted inside the second strip-shaped barrel groove (11).

4. The door and jamb assembly mounting and adjustment system according to claim 1, wherein: Each of the two adjacent extension blocks (7) has a slot (71) on its opposite side, and the adjusting bolt (8) is located in the slot (71) and makes smooth contact with the inner wall of the slot (71).

5. The door and jamb combination mounting adjustment system of claim 1, wherein: Both the upper mounting plate (51) and the lower mounting plate (52) are provided with T-shaped through slots (55), and the end of the adjusting bolt (8) away from the extension block (7) is engaged with the inner side of the T-shaped through slot (55).

6. A door and door frame combination mounting adjustment system according to claim 2 wherein: The right side of the connecting plate (22) is integrally formed with a edging (221), which wraps around the outside of the door leaf (21) and is slidably connected to the door leaf (21).

7. The door body and door frame combined installation and adjustment system according to claim 2, characterized in that: A connecting hole (211) is provided on the left side of the door leaf (21). A nut (212) is fixedly installed inside the connecting hole (211). One end of the fixing screw (24) located inside the door leaf (21) is threadedly connected to the nut (212).

8. The door body and door frame combined installation and adjustment system according to claim 1, characterized in that: A polyurethane buffer pad (10) is fixedly installed on the door frame (1), and both sides of the back of the door body (2) are in contact with the polyurethane buffer pad (10).

9. The door body and door frame combined installation and adjustment system according to claim 1, characterized in that: Both sets of collapsible locking bolts (61) are shear bolts.

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