Device for preventing laboratory furnace door from derailing
By incorporating a buffer structure with protective grooves and anti-collision plates in the laboratory furnace door device, the problem of furnace door slippage was solved, achieving stable operation of the furnace door and noise control, thereby improving the service life of the equipment and testing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU IRON & STEEL (GROUP) CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-05-19
AI Technical Summary
The furnace door of the laboratory heating furnace is prone to slipping during opening, which can lead to a drop in furnace temperature, noise pollution, and damage to the baffle, affecting test efficiency and maintenance costs.
Design a device to prevent laboratory furnace doors from derailing. By setting protective grooves and anti-collision plates on the track limit seat, and using springs to connect the anti-collision plates to buffer and block the rollers, the furnace door is prevented from derailing and noise is reduced.
It effectively prevents furnace door derailment, reduces noise, extends equipment lifespan, improves testing efficiency, and reduces maintenance costs.
Smart Images

Figure CN224262213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of furnace door technology, specifically a device for preventing laboratory furnace doors from derailing. Background Technology
[0002] When the laboratory heating furnace is turned on, to prevent the furnace door moving pulley from slipping and falling off during the opening process, the maintenance process after falling off will cause the furnace temperature to drop rapidly, affecting the experimental efficiency, reducing the service life of refractory materials, causing energy waste and increased maintenance costs. Although the existing technology can use a stop to block the furnace door, the impact force when the furnace door is raised and lowered will cause the furnace door to collide with the stop, which will not only cause a lot of noise, but also damage the stop over time. Utility Model Content
[0003] The purpose of this invention is to provide a device to prevent laboratory furnace doors from derailing, thereby solving the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a device for preventing laboratory furnace doors from derailing, comprising a lifting furnace door, rollers, tracks, and track limiting seats. Rollers are installed on the outer sides of the four corners of the lifting furnace door, and tracks are provided on both sides of the lifting furnace door. The rollers at the four corners of the lifting furnace door are on the tracks and are connected in a rolling manner. Track limiting seats are fixed to the top of the two tracks by bolts.
[0005] An installation groove is provided at the rear end of the track limiting seat, and the front end of the track is located in the installation groove. A protective groove is provided at the bottom end of the track limiting seat, and the two sides of the protective groove have a through structure. Both sides of the protective groove are fixedly connected to the anti-collision plate by embedded springs.
[0006] In a preferred embodiment of this invention, the bolt passes through the track limiting seat and the track and is fixed by a nut.
[0007] As a preferred embodiment of this utility model, the front end of the track has a semi-circular structure, and the rear end has a rectangular structure.
[0008] In a preferred embodiment of this invention, the front end of the track is fitted into the mounting groove.
[0009] In a preferred embodiment of this invention, both the protective groove and the anti-collision plate are arc-shaped, and the diameter of the protective groove is larger than the diameter of the anti-collision plate.
[0010] In a preferred embodiment of this invention, the diameter of the anti-collision plate is equal to the diameter of the roller, and the width of the anti-collision plate is equal to the width of the roller.
[0011] As a preferred embodiment of this utility model, the inner and outer end faces of the anti-collision plate are both fixed with a protective layer made of rubber.
[0012] In a preferred embodiment of this invention, the bottom end of the spring penetrates through the protective layer and is connected to the anti-collision plate.
[0013] As a preferred embodiment of this utility model, the two end faces of the track limiting seat are respectively flush with the anti-collision plate and the two end faces of the roller.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, a track limiting seat is fixed to the top of the track with bolts. The bottom of the limiting seat has a protective groove larger than the roller, which can block the roller and thus prevent the lifting furnace door from derailing, thus ensuring high safety.
[0016] 2. In this utility model, anti-collision plates are provided on both sides of the protective groove of the track limit seat. The anti-collision plates are installed by springs, and rubber protective layers are provided at both the inner and outer ends of the anti-collision plates. This not only buffers the rollers but also reduces noise and extends the service life. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the track limiting seat structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the internal connection structure between the track limiting seat and the roller of this utility model;
[0020] Figure 4 This is a bottom view of the track limiting seat and track connection structure of this utility model;
[0021] Figure 5 This is a front view of the exploded structure of the track limiting seat and roller of this utility model.
[0022] In the diagram: 1. Lifting furnace door; 2. Roller; 3. Track; 4. Track limit seat; 5. Bolt; 6. Mounting groove; 7. Protective groove; 8. Anti-collision plate; 9. Spring; 10. Protective layer. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all of them fall within the scope of protection of this utility model.
[0026] Example
[0027] like Figure 1-5 As shown, this utility model provides a technical solution: including a lifting furnace door 1, rollers 2, tracks 3 and track limiting seats 4. Rollers 2 are installed on the outer sides of the four corners of the lifting furnace door 1. Tracks 3 are provided on both sides of the lifting furnace door 1. The rollers 2 at the four corners of the lifting furnace door 1 are on the tracks 3 and are connected in a rolling manner. Track limiting seats 4 are fixed to the top of the two tracks 3 by bolts 5.
[0028] An installation groove 6 is provided at the rear end of the track limit seat 4, and the front end of the track 3 is located in the installation groove 6. A protective groove 7 is provided at the bottom end of the track limit seat 4, and the two sides of the protective groove 7 are through structures. Both sides of the protective groove 7 are fixedly connected to the anti-collision plate 8 by embedded springs 9.
[0029] Bolt 5 passes through the track limit seat 4 and the track 3 and is fixed by a nut, which increases the stability of the track limit seat.
[0030] The front end of track 3 is semi-circular, and the rear end is rectangular, which allows the rollers to move smoothly on the track.
[0031] Both the protective groove 7 and the anti-collision plate 8 have an arc-shaped structure, and the diameter of the protective groove 7 is larger than the diameter of the anti-collision plate 8, which allows the roller to be placed inside the protective groove.
[0032] The diameter of the anti-collision plate 8 is the same as the diameter of the roller 2, and the width of the anti-collision plate 8 is the same as the width of the roller 2. The anti-collision plate contacts the roller and plays a blocking role.
[0033] The inner and outer ends of the anti-collision plate 8 are both fixed with a rubber protective layer 10, which can reduce the collision noise between the roller and the anti-collision plate.
[0034] The bottom end of the spring 9 passes through the protective layer 10 and is connected to the anti-collision plate 8, which facilitates the secure installation of the spring.
[0035] The two ends of the track limit seat 4 are flush with the two ends of the anti-collision plate 8 and the roller 2, respectively, so that the roller can make aligned contact with the anti-collision plate.
[0036] When the roller 2 is in the mounting groove 6 and in contact with the anti-collision plate 8, there is a gap between the track limit seat 4 and the lifting furnace door 1 to avoid contact collision between the track limit seat and the lifting furnace door.
[0037] Working principle:
[0038] When in use, the rollers 2 on both sides of the lifting furnace door 1 roll on the track 3 to adjust the lifting of the furnace door 1. Then, the rollers 2 are installed at the top through the track 3 by bolts 5. When the rollers 2 move to the top of the track 3, the rollers 2 are in the protective groove 7. When the rollers 2 come into contact with the anti-collision plate 8, the spring 9 plays a compression buffering role. The anti-collision plate 8 can block the rollers 2, which on the one hand prevents the lifting furnace door 1 from derailing, and on the other hand reduces the generation of noise.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A device for preventing a laboratory furnace door from derailing, comprising a lifting furnace door (1), rollers (2), a track (3), and a track limiting seat (4), characterized in that: Rollers (2) are installed on the outer sides of the four corners of the lifting furnace door (1). Tracks (3) are provided on both sides of the lifting furnace door (1). The rollers (2) at the four corners of the lifting furnace door (1) are on the tracks (3) and are connected in a rolling manner. Track limit seats (4) are fixed at the top of the two tracks (3) by bolts (5). An installation groove (6) is provided at the rear end of the track limiting seat (4), and the front end of the track (3) is located in the installation groove (6). A protective groove (7) is provided at the bottom end of the track limiting seat (4), and the two sides of the protective groove (7) are through structures. Both sides of the protective groove (7) are fixedly connected to the anti-collision plate (8) by embedded springs (9).
2. The device for preventing laboratory furnace doors from derailing according to claim 1, characterized in that: The bolt (5) passes through the track limit seat (4) and the track (3) and is fixed by a nut.
3. The device for preventing laboratory furnace doors from derailing according to claim 1, characterized in that: The front end of the track (3) is semi-circular, and the rear end is rectangular.
4. The device for preventing laboratory furnace doors from derailing according to claim 1, characterized in that: The front end of the track (3) is fitted into the mounting groove (6).
5. The device for preventing laboratory furnace doors from derailing according to claim 1, characterized in that: Both the protective groove (7) and the anti-collision plate (8) are arc-shaped, and the diameter of the protective groove (7) is larger than the diameter of the anti-collision plate (8).
6. The device for preventing laboratory furnace doors from derailing according to claim 5, characterized in that: The diameter of the anti-collision plate (8) is the same as the diameter of the roller (2), and the width of the anti-collision plate (8) is the same as the width of the roller (2).
7. The device for preventing laboratory furnace doors from derailing according to claim 6, characterized in that: The anti-collision plate (8) has a rubber protective layer (10) fixed on both its inner and outer ends.
8. The device for preventing laboratory furnace doors from derailing according to claim 1, characterized in that: The bottom end of the spring (9) passes through the protective layer (10) and is connected to the anti-collision plate (8).
9. The device for preventing laboratory furnace doors from derailing according to claim 1, characterized in that: The two ends of the track limiting seat (4) are flush with the two ends of the anti-collision plate (8) and the roller (2), respectively.