Fire door sealing strip mounting structure
By using rollers and bearings in the fire door sealing strip installation structure, the problems of low installation efficiency and difficulty in ensuring quality are solved, achieving efficient and smooth sealing strip installation, and supporting convenient replacement of rollers and bearings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU TONGLING DOOR IND CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-09
Smart Images

Figure CN224334374U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire door sealing strip installation technology, specifically to a fire door sealing strip installation structure. Background Technology
[0002] Fire doors are doors that can meet the requirements of fire resistance stability, integrity, and thermal insulation within a certain period of time. They are installed in fire-resistant compartments, evacuation stairwells, vertical shafts, and other fire-resistant partitions with a certain degree of fire resistance. Normally open fire doors are kept open under normal circumstances for easy passage and can be used for fire evacuation in case of fire. Normally closed fire doors must be kept closed at all times to effectively block the invasion of dense smoke and flames in the event of a fire. During the production of fire doors, sealing strips need to be installed. The installation of these strips is usually done by workers pressing them down by hand, which is not only inefficient but also cannot guarantee installation quality, easily resulting in uneven installation surfaces and twisting. Utility Model Content
[0003] To address the problems in the existing technology, this utility model provides a fire door sealing strip installation structure.
[0004] The technical solution adopted by this utility model to solve its technical problem is a fire door sealing strip installation structure, including a support, a roller inside the support, a bearing inside the roller, a support rod inside the bearing, through holes on both sides of the support that are adapted to the support rod, a stop block fixed on both sides of the support, a locking bolt on both sides of the support, screw holes on both stops that are adapted to the locking bolts, two slots on the support rod that are adapted to the locking bolts, and a first grip rod fixed to the top of the support.
[0005] By adopting the above technical solution, the first grip rod is held by hand, and the roller is pressed onto the sealing strip. After moving the first grip rod, the bearing setting facilitates the rotation of the roller. The roller rotates and squeezes the sealing strip, which facilitates the installation of the sealing strip, improves efficiency, ensures installation quality, and makes the installation surface smoother. When it is necessary to replace the bearing and roller, the two locking bolts are loosened and the support rod is pulled out to remove the roller from the support, which facilitates the replacement of the roller and bearing.
[0006] Specifically, a protective sleeve is fixed to the outside of the roller.
[0007] By adopting the above technical solution, the protective sleeve can protect the sealing strip and prevent the roller from damaging the sealing strip.
[0008] Specifically, a first anti-slip sleeve is fixed on the first grip bar.
[0009] By adopting the above technical solution, the first anti-slip sleeve is designed to facilitate gripping.
[0010] Specifically, an auxiliary mechanism is provided on one side of the first grip, the auxiliary mechanism including a base, a limiting bolt, a base support and a second grip. The base is connected to a support, and a base support is rotatably connected inside the base. The second grip is fixed on the base support. A screw hole adapted to the limiting bolt is provided on one side of the base, and multiple slots adapted to the limiting bolt are provided on the side wall of the base support.
[0011] By adopting the above technical solution, loosening the limiting bolt, rotating the base, and screwing the end of the limiting bolt into the slot on the side wall of the base, the angle between the second grip and the first grip can be adjusted as needed. Holding the second grip makes it easier to squeeze and install the sealing strip.
[0012] Specifically, a second anti-slip sleeve is fixed on the second grip bar.
[0013] By adopting the above technical solution, the second anti-slip sleeve is designed to facilitate gripping the second grip bar.
[0014] The beneficial effects of this utility model are:
[0015] (1) The fire door sealing strip installation structure described in this utility model allows the user to hold the first handle, press the roller onto the sealing strip, and then move the first handle. The bearing setting facilitates the rotation of the roller. The roller rotates and squeezes the sealing strip, which is beneficial for the installation of the sealing strip, improves efficiency, ensures installation quality, and makes the installation surface smoother. When it is necessary to replace the bearing and roller, the two locking bolts are loosened and the support rod is pulled out to remove the roller from the support, which is convenient for replacing the roller and bearing.
[0016] (2) The fire door sealing strip installation structure described in this utility model allows for the loosening of the limiting bolt, rotation of the base, and screwing the end of the limiting bolt into the slot on the side wall of the base. The angle between the second grip and the first grip can be adjusted as needed. Holding the second grip facilitates the squeezing and installation of the sealing strip. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 For the present utility model Figure 1 Enlarged view of the structure at point A in the middle;
[0020] Figure 3 This is a schematic diagram of the structure of the roller, protective sleeve, support rod and bearing of this utility model.
[0021] In the diagram: 1. Support; 2. First grip; 3. First anti-slip sleeve; 4. Roller; 5. Base; 6. Limiting bolt; 7. Base support; 8. Second grip; 9. Auxiliary mechanism; 10. Second anti-slip sleeve; 11. Stop block; 12. Locking bolt; 13. Support rod; 14. Bearing; 15. Protective sleeve. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0023] To improve efficiency and ensure installation quality, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 As shown, the fire door sealing strip installation structure of this utility model includes a support 1, a roller 4 inside the support 1, a bearing 14 inside the roller 4, a support rod 13 inside the bearing 14, through holes adapted to the support rod 13 on both sides of the support 1, a stop block 11 welded and fixed on both sides of the support 1, a locking bolt 12 on both sides of the support 1, screw holes adapted to the locking bolt 12 on both stop blocks 11, two slots adapted to the locking bolt 12 on the support rod 13, and a first grip rod 2 welded and fixed to the top of the support 1.
[0024] When in use, hold the first grip 2, press the roller 4 onto the sealing strip, and then move the first grip 2. The bearing 14 is designed to facilitate the rotation of the roller 4. The roller 4 rotates and squeezes the sealing strip, which facilitates the installation of the sealing strip, improves efficiency, ensures installation quality, and makes the installation surface smoother. When it is necessary to replace the bearing 14 and the roller 4, loosen the two locking bolts 12 and pull out the support rod 13 to remove the roller 4 from the support 1, which makes it convenient to replace the roller 4 and the bearing 14.
[0025] To protect the sealing strip, for example, such as Figure 3 As shown, a protective sleeve 15 is fixed to the outer side of the roller 4 by adhesive.
[0026] During use, the protective sleeve 15 can protect the sealing strip and prevent the roller 4 from damaging the sealing strip.
[0027] To facilitate gripping the first grip bar 2, for example, as shown... Figure 1 As shown, a first anti-slip sleeve 3 is fixed to the first grip bar 2 by adhesive.
[0028] To facilitate the extrusion and installation operations, for example, such as Figure 1As shown, an auxiliary mechanism 9 is provided on one side of the first grip 2. The auxiliary mechanism 9 includes a base 5, a limiting bolt 6, a base support 7, and a second grip 8. The base 5 is welded to the support 1. The base support 7 is rotatably connected inside the base 5. The second grip 8 is welded and fixed on the base support 7. A screw hole adapted to the limiting bolt 6 is provided on one side of the base 5. A plurality of slots adapted to the limiting bolt 6 are provided on the side wall of the base support 7.
[0029] When in use, loosen the limiting bolt 6, rotate the base 7 by hand, and screw the end of the limiting bolt 6 into the slot on the side wall of the base 7. The angle between the second grip 8 and the first grip 2 can be adjusted as needed. Holding the second grip 8 makes it easier to control the support 1 and the roller 4, which in turn facilitates the compression and installation of the sealing strip.
[0030] For ease of gripping the second grip bar 8, for example, as shown Figure 1 As shown, a second anti-slip sleeve 10 is fixed to the second grip bar 8 by adhesive.
[0031] When using this utility model, first attach the sealing strip to the fire door (existing technology, not shown), loosen the limiting bolt 6, rotate the base 7 by hand, and screw the end of the limiting bolt 6 into the slot on the side wall of the base 7. The included angle between the second grip 8 and the first grip 2 can be adjusted as needed.
[0032] Holding the first anti-slip sleeve 3 and the second anti-slip sleeve 10, press the protective sleeve 15 on the outside of the roller 4 onto the sealing strip, and then move the first gripping rod 2. The setting of the bearing 14 facilitates the rotation of the roller 4. The roller 4 rotates and squeezes the sealing strip, which facilitates the installation of the sealing strip, improves efficiency, ensures installation quality, and makes the installation surface smoother.
[0033] When it is necessary to replace bearing 14 and roller 4, loosen the two locking bolts 12 and pull out the support rod 13 to remove roller 4 from support 1, which facilitates the replacement of roller 4 and bearing 14.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents. Contents not described in detail in this utility model are considered prior art known to those skilled in the art.
Claims
1. A fire door sealing strip installation structure, characterized in that, The support includes a support (1), a roller (4) inside the support (1), a bearing (14) inside the roller (4), a support rod (13) inside the bearing (14), through holes adapted to the support rod (13) on both sides of the support (1), a stop block (11) fixed on both sides of the support (1), a locking bolt (12) on both sides of the support (1), a screw hole adapted to the locking bolt (12) on both of the stop blocks (11), two slots adapted to the locking bolt (12) on the support rod (13), and a first gripping rod (2) fixed at the top of the support (1).
2. The fire door sealing strip installation structure according to claim 1, characterized in that, A protective sleeve (15) is fixed to the outside of the roller (4).
3. The fire door sealing strip installation structure according to claim 1, characterized in that, A first anti-slip sleeve (3) is fixed on the first grip (2).
4. The fire door sealing strip installation structure according to claim 1, characterized in that, An auxiliary mechanism (9) is provided on one side of the first grip (2). The auxiliary mechanism (9) includes a base (5), a limiting bolt (6), a base (7), and a second grip (8). The base (5) is connected to the support (1). The base (7) is rotatably connected inside the base (5). The second grip (8) is fixed on the base (7). A screw hole adapted to the limiting bolt (6) is provided on one side of the base (5). A plurality of slots adapted to the limiting bolt (6) are provided on the side wall of the base (7).
5. The fire door sealing strip installation structure according to claim 4, characterized in that, A second anti-slip sleeve (10) is fixed on the second grip (8).