Fire door frames for easy installation

Abstract

The present invention relates to a door frame for a fireproof door that is easy to install and cooperates with a door leaf. The door frame includes a first column, a second column and a crossbeam. The bottom of the first column and the bottom of the second column are both provided with a first lifting member, and the bottom of the door leaf away from the hinged end is provided with a second lifting member; the upper end of the first column is provided with a first support member, and the upper end of the second column is provided with a second support member at the same height as the first support member, and the action directions of the first support member and the second support member are both outward; the bottom of the first column and the second column are both provided with a transverse movement device, each first lifting member is installed on the corresponding transverse movement device, and the transverse movement device drives the first lifting member to move horizontally in a direction perpendicular to and parallel to the crossbeam; the first column and the second column are both provided with a plurality of expansion bolt mounting holes; the door leaf is hinged to the door frame for easy installation.

Description

[0001] This application is a divisional application of the patent application entitled "Easy-to-install fireproof door and its installation process". The application date of the original application is 2021-7-16, and the application number is 202110807605.1. Technical Field

[0002] The present invention relates to the technical field of fireproof doors, in particular to a door frame of a fireproof door which is easy to install. Background Art

[0003] Fire doors are doors with fire-resistant properties. They buy time for people to escape a fire, prevent the spread of fire, delay the spread of fire, and provide fire resistance for a certain period of time. Fire doors are a vital component of firefighting equipment and a crucial part of social fire prevention. They are also indispensable fire protection features in modern high-rise buildings. In addition to their ordinary door functions, fire doors also have the special functions of preventing fire, isolating smoke, suppressing the spread of fire, and protecting personnel evacuation.

[0004] Existing fire doors are made of steel and filled with fireproof materials, which makes them extremely heavy, inconvenient to install, and easy to be installed crooked. The crooked installation of the door frame will make it impossible to complete the reset of the door leaf under the drive of the reset device, and lose the function of isolating smoke in the event of a fire. Summary of the Invention

[0005] In order to overcome the technical defects of the prior art, the present invention provides a door frame for a fire door that is easy to install.

[0006] The technical solution adopted by the present invention is:

[0007] A door frame for a fire door that is easy to install, which cooperates with the door leaf, comprises a first column, a second column and a crossbeam, wherein the bottom of each of the first column and the second column is provided with a first lifting member, and the bottom of the door leaf away from the hinged end is provided with a second lifting member;

[0008] A plurality of pushing components are provided on the top of the crossbeam;

[0009] A first expansion member is provided at the upper end of the first column, and a second expansion member is provided at the upper end of the second column at the same height as the first expansion member, and the first expansion member and the second expansion member both act outwards;

[0010] The bottom of each of the first column and the second column is provided with a transverse movement device, and each of the first lifting members is installed on the corresponding transverse movement device, and the transverse movement device drives the first lifting member to move horizontally in a direction perpendicular to and parallel to the crossbeam;

[0011] A third expansion member is provided at the lower end of the first column, and a fourth expansion member is provided at the lower end of the second column at the same height as the third expansion member, and the action directions of the third expansion member and the fourth expansion member are both outward;

[0012] The first column and the second column are both provided with a plurality of expansion bolt mounting holes;

[0013] The door leaf is hinged on the door frame.

[0014] Preferably, the first lifting member includes an integrally arranged lifting thread segment, a lifting prism segment and a lifting support plate, and the lifting thread segment is installed at the bottom of the transverse movement device.

[0015] Preferably: the second lifting member includes a straightening foot, a straightening nut and a straightening screw, the straightening screw is threadedly connected to the door leaf, the door leaf is integrally provided with a sliding groove and a support groove connected to the sliding groove, the straightening nut slides along the sliding groove, the straightening foot extends from the support groove, the straightening nut is provided with a pushing cone surface, and the straightening foot supports the pushing cone surface.

[0016] Preferably, the first expansion member includes an integrally arranged first expansion thread segment, a first expansion prism segment and a first expansion support plate, and the first expansion thread segment is mounted on the upper end of the first column.

[0017] Preferably, the second expansion member includes an integrally arranged second expansion thread segment, a second expansion prism segment and a second expansion support plate, and the second expansion thread segment is mounted on the upper end of the second column.

[0018] Preferably: the transverse movement device includes an upper block, a middle block, a lower block, a first transverse movement screw and a second transverse movement screw, the bottom of the upper block is provided with a first dovetail groove, the top of the middle block slides along the first dovetail groove, the first transverse movement screw is rotatably mounted on the middle block and is threadedly connected to the upper block, the direction of the first dovetail groove is perpendicular to the crossbeam, the bottom of the middle block is provided with a second dovetail groove, the top of the lower block slides along the second dovetail groove, the second transverse movement screw is rotatably mounted on the lower block and is threadedly connected to the middle block, and the direction of the second dovetail groove is parallel to the crossbeam.

[0019] Preferably, the third expansion member includes an integrally arranged third expansion thread segment, a third expansion prism segment and a third expansion support plate, and the third expansion thread segment is installed at the lower end of the first column.

[0020] Preferably, the fourth expansion member includes an integrally arranged fourth expansion thread segment, a fourth expansion prism segment and a fourth expansion support plate, and the fourth expansion thread segment is installed at the lower end of the second column.

[0021] The beneficial effects of the present invention are:

[0022] The door frame includes a first column, a second column and a crossbeam. A first lifting member is provided at the bottom of the first column and the bottom of the second column. A second lifting member is provided at the bottom of the door leaf away from the hinged end. Several pushing assemblies are provided on the top of the crossbeam. The first lifting member is used to control the height of the first column and the second column of the door frame, and finally make the crossbeam horizontal. The second lifting member controls the lifting and lowering of the side of the door leaf away from the hinged end and thereby drives the second column to be adjusted to the plumb bob. The plumb bob of the second column can make the door leaf close smoothly to ensure the effect of isolating smoke.

[0023] A first propping member is provided at the upper end of the first column, and a second propping member is provided at the upper end of the second column at the same height as the first propping member. The first propping member and the second propping member both act outwards. The first propping member and the second propping member are used to fix the door frame after the first lifting member and the second lifting member are adjusted, so that each first lifting member can obtain sufficient friction from the ground when adjusting the transverse movement device;

[0024] The bottom of the first column and the second column are both provided with a transverse movement device, and each first lifting member is installed on the corresponding transverse movement device. The transverse movement device drives the first lifting member to move horizontally in a direction perpendicular to and parallel to the crossbeam, thereby adjusting the relative position of the first column and the second column to ensure that the door frame does not interfere with the door leaf when the door leaf is closed, ensuring that the door leaf is closed smoothly, without requiring heavy physical labor, easy to install and ensuring that the door leaf is closed smoothly;

[0025] A third support member is provided at the lower end of the first column, and a fourth support member is provided at the lower end of the second column at the same height as the third support member. The action directions of the third support member and the fourth support member are both outward. The first column and the second column are both provided with a number of expansion bolt mounting holes. The third support member and the fourth support member are used to support the door frame to prevent the door frame from deformation when the expansion bolts are tightened. The pushing assembly is used to prevent the beam from deformation when the expansion bolts are tightened. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 for Figure 1 Enlarged schematic diagram of point A in the middle.

[0028] Figure 3 for Figure 1 Enlarged schematic diagram of point B in the middle.

[0029] Figure 4 Schematic diagram of the transverse movement device structure.

[0030] Figure 5 Schematic diagram of the structure of the second lifting member.

[0031] Description of reference numerals:

[0032] 1. Door frame;

[0033] 11. First column; 111. First expansion member; 1111. First expansion threaded section; 1112. First expansion prism section; 1113. First expansion support plate;

[0034] 12. beam;

[0035] 13. Second pillar;

[0036] 14. First lifting member; 141. Lifting threaded section; 142. Lifting prism section; 143. Lifting support plate;

[0037] 15. Second lifting member; 151. Righting leg; 152. Righting nut; 1521. Pushing cone; 153. Righting screw;

[0038] 16. Push assembly;

[0039] 17. Transverse movement device; 171. Upper block; 1711. First dovetail groove; 172. Middle block; 1721. Second dovetail groove; 173. Lower block; 174. First transverse movement screw; 175. Second transverse movement screw;

[0040] 18. Third expansion member; 181. Third expansion threaded section; 182. Third expansion prism section; 183. Third expansion support plate; 19. Expansion bolt mounting hole;

[0041] 2. Reset device;

[0042] 3. Door leaf; 31. Sliding groove. DETAILED DESCRIPTION

[0043] The present invention will be further described below in conjunction with the accompanying drawings:

[0044] like Figure 1-5As shown, this embodiment provides a fire door that is easy to install and cooperates with the door leaf 3. The door frame 1 includes a first column 11, a second column 13 and a crossbeam 12. The bottom of the first column 11 and the bottom of the second column 13 are both provided with a first lifting member 14. The bottom of the door leaf 3 away from the hinged end is provided with a second lifting member 15. The top of the crossbeam 12 is provided with a plurality of pushing assemblies 16. The first lifting member 14 is used to control the height of the first column 11 and the second column 13 of the door frame 1, and finally make the crossbeam 12 horizontal. The second lifting member 15 controls the side of the door leaf 3 away from the hinged end. The side lifting drives the second column 13 to be adjusted to the plumb bob. The plumb bob of the second column 13 can make the door leaf 3 close smoothly to ensure the effect of isolating smoke. The first lifting member 14 includes an integral lifting thread section 141, a lifting prism section 142 and a lifting support plate 143. The lifting thread section 141 is installed at the bottom of the transverse movement device 17. When adjusting the height of the first lifting member 14, use a wrench to twist the lifting prism section 142. Under the action of the lifting thread section 141, the lifting support plate 143 moves up and down, thereby causing the first column 11 and the second column 13 to rise and fall.

[0045] The second lifting member 15 includes a straightening foot 151, a straightening nut 152 and a straightening screw 153. The straightening screw 153 is threadedly connected to the door leaf 3. The door leaf 3 is integrally provided with a sliding groove 31 and a support groove connected to the sliding groove 31. The straightening nut 152 slides along the sliding groove 31, and the straightening foot 151 extends from the support groove. The straightening nut 152 is provided with a pushing cone surface 1521, and the straightening foot 151 pushes against the pushing cone surface 1521. When adjusting the second lifting member 15, the straightening screw 153 is rotated, and the straightening nut 152 slides in the sliding groove 31, and then the pushing cone surface 1521 pushes the straightening foot 151 up and down to lift the door leaf 3, thereby driving the second column 13 hinged on the door leaf 3 to make the second column 13 plumb. No heavy physical labor is required, which is easy to install and ensures that the door leaf 3 is closed smoothly.

[0046] The first support member 11 is provided at the upper end of the first column 11, and the second support member 13 is provided at the same height as the first support member 111. The first support member 111 and the second support member are both directed outwards. The first support member 111 and the second support member are used to fix the door frame 1 after the first lifting member 14 and the second lifting member 15 are adjusted, so that when the transverse movement device 17 is adjusted, each first lifting member 14 Sufficient friction can be obtained from the ground. Of course, in order to ensure sufficient friction, each first lifting member 14 can continue to fine-tune downward after each first support member 111 supports the column wall to press the ground. The first support member 111 includes an integrated first support thread segment 1111, a first support prism segment 1112 and a first support plate 1113. The first support thread segment 1111 is installed on the upper end of the first column 11. The second support member includes an integrated second support thread segment, a second support prism segment and a second support plate. The second support thread segment is installed on the upper end of the second column 13. The first support prism segment 1112 and the second support prism segment are rotated respectively by a wrench, thereby pushing the first support plate 1113 and the second support plate to move, thereby causing the first support plate 1113 and the second support plate to squeeze the wall.

[0047] The bottom of the first column 11 and the second column 13 are both provided with a transverse movement device 17, and each first lifting member 14 is installed on the corresponding transverse movement device 17. The transverse movement device 17 drives the first lifting member 14 to move horizontally in the directions perpendicular and parallel to the crossbeam 12, thereby adjusting the relative position of the first column 11 and the second column 13 to ensure that the door frame 1 does not interfere with the door leaf 3 when the door leaf 3 is closed. The transverse movement device 17 includes an upper block 171, a middle block 172, a lower block 173, a first transverse movement screw rod 174 and a second transverse movement screw rod 175. The bottom of the upper block 171 is provided with a first dovetail groove 1711, and the top of the middle block 172 slides along the first dovetail groove 1711. The first transverse movement screw rod 174 is rotatably installed on the middle block 172 and is threadedly connected to the upper block 171. The direction of the first dovetail groove 1711 is perpendicular to the transverse direction. Beam 12, a second dovetail groove 1721 is provided at the bottom of the middle block 172, and the top of the lower block 173 slides along the second dovetail groove 1721. The second transverse screw rod 175 is rotatably installed on the lower block 173 and is threadedly connected to the middle block 172. The direction of the second dovetail groove 1721 is parallel to the beam 12. Rotating the first transverse screw rod 174 can make the first dovetail groove 1711 slide along the middle block 172, and then adjust the first column 11 and the second column 13 to move in a direction perpendicular to the beam 12, so that the first column 11 and the second column 13 are plumb. Rotating the second transverse screw rod 175 can make the second dovetail groove 1721 slide along the lower block 173, and then adjust the first column 11 and the second column 13 to move in a direction parallel to the beam 12, so that the door frame 1 does not interfere with the door leaf 3 and the door leaf 3 is smoothly closed.

[0048] A third support member 18 is provided at the lower end of the first column 11, and a fourth support member is provided at the lower end of the second column 13 at the same height as the third support member 18. The action directions of the third support member 18 and the fourth support member are both outward. The first column 11 and the second column 13 are both provided with a plurality of expansion bolt mounting holes 19. The third support member 18 and the fourth support member are used to support the first column 11 and the second column 13 to prevent the first column 11 and the second column 13 from deforming when the expansion bolts are tightened. The pushing assembly 16 is used to support the crossbeam 12 to prevent the crossbeam 12 from deforming when the expansion bolts are tightened. The third support member 18 and the fourth support member are used to support the first column 11 and the second column 13 to prevent the crossbeam 12 from deforming when the expansion bolts are tightened. 8 includes an integrally arranged third support thread segment 181, a third support prism segment 182 and a third support support plate 183. The third support thread segment 181 is installed at the lower end of the first column 11. The fourth support member includes an integrally arranged fourth support thread segment, a fourth support prism segment and a fourth support support plate. The fourth support thread segment is installed at the lower end of the second column 13. The third support prism and the fourth support prism are rotated respectively by a wrench, thereby pushing the third support plate 183 and the fourth support plate to move, thereby causing the third support plate 183 and the third support plate 183 to squeeze the wall.

[0049] The door leaf 3 is hinged on the door frame 1, and a reset device 2 is installed between the door frames 1. The two ends of the reset device 2 are respectively installed on the door leaf 3 and the door frame 1. The action direction of the reset device 2 makes the door leaf 3 in a closed state.

[0050] The installation process of fire doors that are easy to install includes the following steps:

[0051] S1: Open the door leaf 3, control the first lifting member 14 located at the lower end of the first column 11 and the second column 13 to rise and fall respectively until the beam 12 is horizontal as measured by a spirit level, and control the second lifting member 15 to rise and fall until the second column 13 is plumb as measured by a plumb bob;

[0052] S2: Control the first supporting member 111 and the second supporting member to support the wall;

[0053] S3: Control the lateral movement device 17 at the bottom of the first column 11 and the second column 13 until the first column 11 is plumb, and measure the plumb of the second column 13 again to prevent the lateral movement device 17 from affecting the posture of the second column 13 when adjusting the first column 11, and control each pushing assembly 16 to push the column toward the wall;

[0054] S4: Control the transverse movement device 17 located at the first column 11 to fine-tune the movement until the gap between the door leaf 3 and the door frame 1 is uniform when the door leaf 3 is closed and the door frame 1 does not interfere with the door leaf 3;

[0055] S5: Control the third supporting member 18 and the fourth supporting member to support the wall;

[0056] S6: Lock the expansion bolts into the wall through the expansion bolt installation holes 19;

[0057] S7 pours cement to fill the gap between the door frame 1 and the wall.

[0058] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A fire door that is easy to install, comprising a door frame, the door frame being matched with a door leaf, and characterized in that: The door frame includes a first column, a second column and a crossbeam, the bottom of the first column and the bottom of the second column are both provided with a first lifting member, the bottom of the door leaf away from the hinge end is provided with a second lifting member, the second lifting member includes a centering foot, a centering nut and a centering screw, the centering screw is threadedly connected to the door leaf, the door leaf is integrally provided with a sliding groove and a support groove connected to the sliding groove, the centering nut slides along the sliding groove, the centering foot extends from the support groove, the centering nut is provided with a pushing cone surface, and the centering foot supports the pushing cone surface; A plurality of pushing components are provided on the top of the crossbeam; A first expansion member is provided at the upper end of the first column, and a second expansion member is provided at the upper end of the second column at the same height as the first expansion member, and the first expansion member and the second expansion member both act outwards; The bottom of the first column and the second column are both provided with a transverse movement device, and each first lifting member is installed on the corresponding transverse movement device, and the transverse movement device drives the first lifting member to move horizontally in a direction perpendicular to and parallel to the cross beam, and the transverse movement device includes an upper block, a middle block, a lower block, a first transverse screw rod and a second transverse screw rod, the bottom of the upper block is provided with a first dovetail groove, the top of the middle block slides along the first dovetail groove, the first transverse screw rod is rotatably mounted on the middle block and is threadedly connected to the upper block, the direction of the first dovetail groove is perpendicular to the cross beam, the bottom of the middle block is provided with a second dovetail groove, the top of the lower block slides along the second dovetail groove, the second transverse screw rod is rotatably mounted on the lower block and is threadedly connected to the middle block, and the direction of the second dovetail groove is parallel to the cross beam; A third expansion member is provided at the lower end of the first column, and a fourth expansion member is provided at the lower end of the second column at the same height as the third expansion member, and the action directions of the third expansion member and the fourth expansion member are both outward; The first column and the second column are both provided with a plurality of expansion bolt mounting holes; The door leaf is hinged on the door frame.

2. The fire door that is easy to install according to claim 1, characterized in that: The first lifting member includes a lifting thread section, a lifting prism section and a lifting support plate that are integrally arranged, and the lifting thread section is installed at the bottom of the transverse movement device.

3. The fire door that is easy to install according to claim 1, characterized in that: The first expansion member includes a first expansion thread segment, a first expansion prism segment and a first expansion support plate which are integrally provided. The first expansion thread segment is mounted on the upper end of the first column.

4. The fire door that is easy to install according to claim 1, characterized in that: The second expansion member includes an integrally arranged second expansion thread segment, a second expansion prism segment and a second expansion support plate, and the second expansion thread segment is mounted on the upper end of the second column.

5. The fire door that is easy to install according to claim 1, characterized in that: The third expansion member includes an integrally arranged third expansion thread section, a third expansion prism section and a third expansion support plate, and the third expansion thread section is installed at the lower end of the first column.

6. The fire door that is easy to install according to claim 1, characterized in that: The fourth expansion member includes an integrally arranged fourth expansion thread segment, a fourth expansion prism segment and a fourth expansion support plate, and the fourth expansion thread segment is installed at the lower end of the second column.

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