Fireproof door frame trimming device

By designing a fire-proof door frame trimming device with motor drive screws and milling cutters, the traditional manual trimming problems are solved, and efficient and accurate door frame trimming is achieved, which improves the installation quality and use effect of fire-proof doors.

CN222569365UActive Publication Date: 2025-03-07HUBEI MENGPING FIRE DOOR & WINDOW CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421102737.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-20
Publication Date
2025-03-07
Estimated Expiration
2034-05-20

AI Technical Summary

Technical Problem

Traditional manual trimming methods are inefficient and difficult to ensure trimming accuracy, resulting in mismatch in the size of the fire door frame and poor sealing, which affects fireproof performance and personnel safety.

Method used

A fire-proof door frame trimming device is designed, and the first screw is driven to rotate by a first motor, so that the first slider is repeatedly moved in the slide groove, and the edge of the door frame is trimmed with a milling cutter, and the door is fixed by multiple baffles to prevent it from tilting during the trimming process.

Benefits of technology

It realizes efficient and precise door frame trimming, avoids the problems of size mismatch and poor sealing, and improves the installation quality and use effect of fire doors.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222569365U_ABST
    Figure CN222569365U_ABST
Patent Text Reader

Abstract

The utility model provides a fireproof door frame trimming device, which belongs to the technical field of door frame maintenance equipment, and comprises four symmetrically arranged stand columns, a cutting mechanism for decorating a door frame is arranged on the stand columns, the cutting mechanism comprises a mounting plate, three guide rods are arranged on the mounting plate, a movable plate is arranged on the guide rods, and a plurality of auxiliary shafts are arranged on the movable plate. A plurality of driven shafts are arranged on the mounting plate; a second baffle is arranged on one sides of the driven shafts; a first sliding groove is formed in one side of the second baffle; a first motor is arranged on the left side of the first sliding groove; a first sliding block is arranged on the first screw rod, a connecting block is arranged on the first sliding block, a door frame is trimmed through a milling cutter, meanwhile, a door is fixed through a first baffle, a second baffle and a third baffle, and the door frame is prevented from moving towards one side during cutting.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of door frame maintenance equipment, in particular to a fireproof door frame trimming device. Background Art

[0002] In the construction industry, fire doors are important safety facilities, and their installation quality directly affects the fire resistance of the building and the safety of personnel. However, during the installation of fire doors, the precise trimming of the door frame has always been a technical problem. The traditional manual trimming method is not only inefficient, but also difficult to ensure the trimming accuracy, which can easily lead to problems such as mismatched door frame sizes and poor sealing, affecting the normal use and fire protection performance of fire doors. Utility Model Content

[0003] In view of this, the utility model provides a method which can not only drive the first screw to rotate through the first motor to make the first slider move cooperatively and trim the edge of the door frame through the milling cutter, but also fix the door through the first baffle plate, the second baffle plate and the third baffle plate to prevent the door from shifting to one side when the milling cutter is trimming the door frame.

[0004] In order to solve the above technical problems, the utility model provides a fireproof door frame trimming device, comprising four symmetrically arranged columns, a cutting mechanism for modifying the door frame is provided on the columns, the cutting mechanism comprises a mounting plate, three guide rods are provided on the mounting plate, a movable plate is provided on the guide rod, a plurality of auxiliary shafts are provided on the movable plate, a first baffle is provided on one side of the auxiliary shaft, a hydraulic push rod is provided on one side of the movable plate, a plurality of limiting holes are provided on one side of the hydraulic push rod, a plurality of passive shafts are provided on the mounting plate, a second baffle is provided on one side of the passive shaft, a first slide groove is provided on one side of the second baffle, a first motor is provided on the left side of the first slide groove, a first screw rod is provided on the first motor, a first slider is provided on the first screw rod, a connecting block is provided on the first slider, a milling cutter is provided on the connecting block, a second slide groove is provided on the right side of the first slide groove, a second motor is provided on the second slide groove, a second screw rod is provided on the second motor, a second slider is provided on the second screw rod, and a third baffle is provided on the second slider, the door frame is trimmed by the milling cutter, and the door is fixed by the first baffle, the second baffle and the third baffle to prevent the door frame from shifting to one side when cutting.

[0005] The mounting plate is arranged on the upper base surface of the column, the guide rod is arranged on the inner side wall of the mounting plate, the movable plate is slidably arranged on the guide rod, the movable plate is slidably arranged on the mounting plate through the guide rod, and the movable plate slides left and right on the mounting plate through the guide rod.

[0006] The limiting hole is arranged on the side base surface of the mounting plate, the hydraulic push rod is arranged on the side base surface of the movable plate, the first baffle is arranged on the upper base surface of the movable plate, the auxiliary shaft is arranged on the movable plate, the telescopic end is extended into the limiting hole by the hydraulic push rod, the sliding block is fixed, the right direction of the door is limited by the first baffle, and the door is assisted by the auxiliary shaft so that the door slides on the mounting plate.

[0007] The passive shaft is arranged on the base surface of the mounting plate, the second baffle is arranged on the upper base surface of the mounting plate and is located on one side of the passive shaft, the first slide groove is arranged on the base surface of the mounting plate and is located on one side of the second baffle, the door is assisted to move on the mounting plate by the passive shaft and the auxiliary shaft, the second baffle restricts the left direction of the door, and the first slide groove limits the first slider.

[0008] The first motor is arranged on the side base surface of the first slide groove, one end of the first screw is connected to the first motor, and the other end is connected to the inner wall of the first slide groove, the first slider is slidably arranged on the first screw, the connecting block is arranged on the side base surface of the first slider, and the milling cutter is arranged on the inner wall of the connecting block. The first screw is driven to rotate by the first motor, so that the first slider is displaced in the first slide groove through the first screw, and the door frame is trimmed by the milling cutter connected to the connecting block.

[0009] The second slide groove is arranged on the side base surface of the first slide groove and the mounting plate, the second motor is arranged on the upper base surface of the second slide groove, one end of the second screw rod is arranged on the output end of the second motor, and the other end is arranged on the inner side wall of the second slide groove, the second slider is limited by the second slide groove, and the second screw rod is driven by the second motor.

[0010] The second slider is slidably arranged on the second screw rod, and the second slider is slidably arranged in the second slide groove through the second screw rod. The third baffle is arranged on the side base surface of the second slider, and the second slider moves up in the second slide groove so that the third baffle limits the forward direction of the door.

[0011] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0012] 1. When the utility model is used, the first motor drives the first screw to rotate, so that the first slider moves repeatedly in the first slide groove, so that the milling cutter trims the door frame.

[0013] 2. When the utility model is used, the movable plate is slid on the mounting plate through the guide rod, thereby trimming the door frames of doors of different widths.

[0014] 3. When the utility model is used, the position of the door is limited by a plurality of baffles to prevent the door from tilting to one side due to the force of the milling cutter when the milling cutter is trimming the door frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model from a top view;

[0017] Figure 3 It is a right-side overall structural schematic diagram of the utility model;

[0018] Figure 4 It is a front view cross-sectional structural schematic diagram of the utility model.

[0019] Explanation of the reference numerals: 10, column; 20, cutting mechanism; 201, mounting plate; 202, guide rod; 203, movable plate; 204, auxiliary shaft; 205, first baffle; 206, hydraulic push rod; 207, limiting hole; 208, passive shaft; 209, second baffle; 210, first slide groove; 211, first motor; 212, first screw rod; 213, first slider; 214, connecting block; 215, milling cutter; 216, second slide groove; 217, second motor; 218, second screw rod; 219, second slider; 220, third baffle. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-4 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0021] According to one embodiment of the utility model, Figure 1-4As shown: This embodiment provides a fireproof door frame trimming device, including four symmetrically arranged columns 10, the columns 10 are provided with a cutting mechanism 20 for trimming the door frame, the cutting mechanism 20 includes a mounting plate 201, the mounting plate 201 is provided with three guide rods 202, the guide rod 202 is provided with a movable plate 203, the movable plate 203 is provided with a plurality of auxiliary shafts 204, one side of the auxiliary shaft 204 is provided with a first baffle 205, one side of the movable plate 203 is provided with a hydraulic push rod 206, one side of the hydraulic push rod 206 is provided with a plurality of limiting holes 207, the mounting plate 201 is provided with a plurality of passive shafts 208, one side of the passive shaft 208 is provided with A second baffle 209, a first slide groove 210 is provided on one side of the second baffle 209, a first motor 211 is provided on the left side of the first slide groove 210, a first screw 212 is provided on the first motor 211, a first slider 213 is provided on the first screw 212, a connecting block 214 is provided on the first slider 213, a milling cutter 215 is provided on the connecting block 214, a second slide groove 216 is provided on the right side of the first slide groove 210, a second motor 217 is provided on the second slide groove 216, a second screw 218 is provided on the second motor 217, a second slider 219 is provided on the second screw 218, and a third baffle 220 is provided on the second slider 219.

[0022] The mounting plate 201 is arranged on the upper base surface of the column 10 , the guide rod 202 is arranged on the inner wall of the mounting plate 201 , the movable plate 203 is slidably arranged on the guide rod 202 , and the movable plate 203 is slidably arranged on the mounting plate 201 through the guide rod 202 .

[0023] The limiting hole 207 is arranged on the side base surface of the mounting plate 201 , the hydraulic push rod 206 is arranged on the side base surface of the movable plate 203 , the first baffle plate 205 is arranged on the upper base surface of the movable plate 203 , and the auxiliary shaft 204 is arranged on the movable plate 203 .

[0024] The passive shaft 208 is arranged on the upper base surface of the mounting plate 201 , the second baffle 209 is arranged on the upper base surface of the mounting plate 201 and located on one side of the passive shaft 208 , and the first slide groove 210 is arranged on the upper base surface of the mounting plate 201 and located on one side of the second baffle 209 .

[0025] The first motor 211 is arranged on the side base surface of the first slide groove 210, one end of the first screw rod 212 is connected to the first motor 211, and the other end is connected to the inner wall of the first slide groove 210, the first slider 213 is slidably arranged on the first screw rod 212, the connecting block 214 is arranged on the side base surface of the first slider 213, and the milling cutter 215 is arranged on the inner wall of the connecting block 214.

[0026] The second slide groove 216 is arranged on the side base surface of the first slide groove 210 and the mounting plate 201, the second motor 217 is arranged on the upper base surface of the second slide groove 216, one end of the second screw rod 218 is arranged on the output end of the second motor 217, and the other end is arranged on the inner wall of the second slide groove 216.

[0027] The second slider 219 is slidably disposed on the second screw rod 218 . The second slider 219 is slidably disposed in the second slide groove 216 through the second screw rod 218 . The third baffle plate 220 is disposed on the side base surface of the second slider 219 .

[0028] The method of using the utility model is as follows: when it is necessary to trim the door frame, first determine the width of the door, then retract the hydraulic push rod 206, adjust the movable plate 203 to a suitable position, and then extend the telescopic end of the hydraulic push rod 206 into the limiting hole 207 to fix the movable plate 203, then place the door on the movable plate 203 and the mounting plate 201, and slide through the auxiliary wheel and the passive wheel, and when sliding to the third baffle plate 220, start the first motor 211 to rotate the first screw rod 212 so that the first slider 213 slides along the first slide groove 210, and slides the milling cutter 215 connected to the first slider 213 to trim the edge of the door frame, and after the milling cutter 215 finishes trimming the door frame, start the second motor 217 to drive the second screw rod 218 to drive the second slider 219 to move downward, so that the third baffle plate 220 moves downward, and then push the door panel to separate from the cutting mechanism 20.

[0029] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A fireproof door frame trimming device, comprising four symmetrically arranged columns (10), characterized in that: The upright column (10) is provided with a cutting mechanism (20) for modifying the door frame, the cutting mechanism (20) comprising a mounting plate (201), the mounting plate (201) is provided with three guide rods (202), the guide rods (202) are provided with a movable plate (203), the movable plate (203) is provided with a plurality of auxiliary shafts (204), one side of the auxiliary shaft (204) is provided with a first baffle (205), one side of the movable plate (203) is provided with a hydraulic push rod (206), one side of the hydraulic push rod (206) is provided with a plurality of limiting holes (207), the mounting plate (201) is provided with a plurality of passive shafts (208), one side of the passive shaft (208) is provided with a second baffle (209), one side of the second baffle (209) is provided with a plurality of limiting holes (207), A first slide groove (210) is provided, a first motor (211) is provided on the left side of the first slide groove (210), a first screw rod (212) is provided on the first motor (211), a first slider (213) is provided on the first screw rod (212), a connecting block (214) is provided on the first slider (213), a milling cutter (215) is provided on the connecting block (214), a second slide groove (216) is provided on the right side of the first slide groove (210), a second motor (217) is provided on the second slide groove (216), a second screw rod (218) is provided on the second motor (217), a second slider (219) is provided on the second screw rod (218), and a third baffle (220) is provided on the second slider (219).

2. A fireproof door frame trimming device according to claim 1, characterized in that: The mounting plate (201) is arranged on the upper base surface of the column (10), the guide rod (202) is arranged on the inner side wall of the mounting plate (201), the movable plate (203) is slidably arranged on the guide rod (202), and the movable plate (203) is slidably arranged on the mounting plate (201) through the guide rod (202).

3. A fireproof door frame trimming device according to claim 1, characterized in that: The limiting hole (207) is arranged on the side base surface of the mounting plate (201), the hydraulic push rod (206) is arranged on the side base surface of the movable plate (203), the first baffle (205) is arranged on the upper base surface of the movable plate (203), and the passive shaft (208) is arranged on the movable plate (203).

4. A fireproof door frame trimming device according to claim 1, characterized in that: The passive shaft (208) is arranged on the upper base surface of the mounting plate (201), the second baffle (209) is arranged on the upper base surface of the mounting plate (201) and is located on one side of the passive shaft (208), and the first slide groove (210) is arranged on the upper base surface of the mounting plate (201) and is located on one side of the second baffle (209).

5. A fireproof door frame trimming device according to claim 1, characterized in that: The first motor (211) is arranged on the side base surface of the first slide groove (210); one end of the first screw rod (212) is connected to the first motor (211), and the other end is connected to the inner wall of the first slide groove (210); the first slider (213) is slidably arranged on the first screw rod (212); the connecting block (214) is arranged on the side base surface of the first slider (213); and the milling cutter (215) is arranged on the inner wall of the connecting block (214).

6. A fireproof door frame trimming device according to claim 1, characterized in that: The second slide groove (216) is arranged on the side base surface of the first slide groove (210) and the mounting plate (201), the second motor (217) is arranged on the upper base surface of the second slide groove (216), and one end of the second screw rod (218) is arranged at the output end of the second motor (217), and the other end is arranged on the inner wall of the second slide groove (216).

7. A fireproof door frame trimming device according to claim 1, characterized in that: The second slider (219) is slidably disposed on the second screw rod (218), the second slider (219) is slidably disposed in the second slide groove (216) through the second screw rod (218), and the third baffle plate (220) is disposed on a side base surface of the second slider (219).