Split type ventilation valve bearing hinge

Abstract

The invention provides a split type ventilation valve bearing hinge which is used for connecting a door frame and a valve and comprises an upper hinge body and a lower hinge body, the upper hinge body is formed by combining a first connecting part and a third connecting part, and the lower hinge body is formed by combining a second connecting part and a third connecting part. The upper portion of the valve is connected with the door frame through the upper hinge, and the lower portion of the valve is connected with the door frame through the lower hinge. According to the valve bearing hinge, the split hinge scheme design is adopted, so that the mounting and debugging convenience is greatly improved, and the reserved civil engineering space of the hinge is reduced.

Description

Technical Field

[0001] This invention relates to the field of protective engineering and protective equipment, and in particular to a split-type ventilation valve bearing hinge. Background Technology

[0002] Blast wave shields are protective devices installed at the inlets and outlets of air and smoke ducts in protected engineering projects to block or weaken blast waves. They are normally open to ensure normal ventilation; when the ventilation opening is subjected to an explosive impact load, the shield closes rapidly under the force of the blast wave, thereby ensuring the safety of equipment and personnel inside the project.

[0003] The hinge mechanism is an important component of the gantry ventilation valve. It is mainly used to support the weight of the valve base and unit, ensuring that the valve base can rotate flexibly and stably around the axis under manual operation to complete the opening and closing action.

[0004] Load-bearing capacity, ease of installation and operation, and maintainability are the main indicators for evaluating the performance of hinge mechanisms. Existing door hinges suffer from the following problems in terms of load-bearing capacity, ease of installation and operation, and maintainability: (1) Ease of installation and operation: The hinges of existing protective equipment mostly adopt a through-shaft structure, that is, the upper and lower hinges are connected by a long through shaft. This structure is simple, but it is difficult to install and debug on site. It is necessary to strictly ensure the coaxiality of the upper and lower door frame hinge seats and the hinge seat of the valve base. Once the valve base sags due to long-term load, it is easy to cause the explosion-proof valve to jam, affecting the effective function of opening and closing.

[0005] (2) In terms of load-bearing capacity: Traditional hinges have fewer hinge units, fewer connecting bolts to the door base and door frame, and lower structural thickness. For large-size heavy-duty doors, the ultra-wide and ultra-high door bases lead to an increase in the spacing between hinge units and an increase in the overturning moment of the door. Traditional hinges cannot bear the weight of the large-size door itself.

[0006] (3) In terms of maintainability: Traditional valves are prone to accelerated wear of the hinge shaft under heavy loads, leading to difficulty in opening and closing. The hinges cannot be adjusted after installation, and once the valve base sags, it will be difficult to open and close. Summary of the Invention

[0007] The purpose of this invention is to provide a split-type ventilation door load-bearing hinge. This hinge adopts a split arrangement, which reduces the difficulty of installation and debugging, reduces the space reserved in civil engineering, has high coaxiality, and good load-bearing performance.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A split-type ventilation door support hinge, the door support hinge being used to connect the door frame and the door, includes an upper hinge and a lower hinge, wherein the upper hinge is composed of a first connecting part and a third connecting part, and the lower hinge is composed of a second connecting part and a third connecting part, the upper part of the door is connected to the door frame through the upper hinge, and the lower part of the door is connected to the door frame through the lower hinge.

[0009] Furthermore, in the aforementioned split-type ventilation door bearing hinge, the middle part of the door is connected to the door frame via a lower hinge.

[0010] Furthermore, in the aforementioned split-type ventilation door bearing hinge, the first connecting part includes a first hinge shaft and a first hinge seat. The first hinge seat is connected to the door frame by a plurality of first bolts, which are evenly distributed along the edge of the first hinge seat. Two first bearing seats are provided on the side of the first hinge seat facing away from the door frame, with one first bearing seat located above the other. The two ends of the first hinge shaft are rotatably connected to the two first bearing seats by rolling bearings. A first end cap is provided at the upper end of the upper first bearing seat, and a first end cap is provided at the lower end of the lower first bearing seat.

[0011] Furthermore, in the aforementioned split-type ventilation door hinge, the second connecting part includes a second hinge shaft and a second hinge seat. The second hinge seat is connected to the door frame by a plurality of second bolts, which are evenly distributed along the edge of the second hinge seat. A second bearing seat and a third bearing seat are provided on the side of the second hinge seat facing away from the door frame. The second bearing seat is located above the third bearing seat. The upper end of the second hinge shaft is located inside the second bearing seat. The second hinge shaft is rotatably connected to the second bearing seat through a rolling bearing. A second end cap is provided at the upper end of the second bearing seat. The lower end of the second hinge shaft is located inside the third bearing seat. The second hinge shaft is rotatably connected to the third bearing seat through a rolling bearing.

[0012] Furthermore, in the aforementioned split-type ventilation valve bearing hinge, the second connecting part further includes an adjustment assembly. The adjustment assembly includes an adjustment seat, an adjustment screw, and a fixing nut. The adjustment seat is disposed within the third bearing housing and is located below the rolling bearing within the third bearing housing. The upper end of the adjustment screw is threadedly connected to the adjustment seat, and the lower end of the adjustment screw extends outside the third bearing housing. A fixing nut is fitted onto the adjustment screw located outside the third bearing housing. Rotating the adjustment screw can adjust the height of the rolling bearing within the third bearing housing, and rotating the fixing nut can fix the adjustment screw.

[0013] Furthermore, in the aforementioned split-type ventilation valve bearing hinge, the third connecting part includes a connecting seat and a connecting plate. The connecting plate is connected to the valve by a plurality of third bolts. One end of the connecting seat is connected to the connecting plate, and the other end of the connecting seat is provided with a mounting hole. A bushing is provided in the mounting hole, and the other end of the connecting seat is rotatably connected to the middle part of the first hinge shaft or the middle part of the second hinge shaft through the bushing.

[0014] Furthermore, in the aforementioned split-type ventilation door bearing hinge, a rib is also connected between the connecting seat and the connecting plate of the third connecting part. Two ribs are provided, and the two ribs are respectively located on both sides of one end of the connecting seat.

[0015] Furthermore, in the aforementioned split-type ventilation valve bearing hinge, a lubrication hole is provided on the outer wall of the bushing, through which lubricating oil can be added into the bushing.

[0016] Furthermore, in the aforementioned split-type ventilation valve bearing hinge, multiple first positioning pins are provided on the side of the first hinge seat facing the door frame, and multiple first positioning pins are provided on the side of the second hinge seat facing the door frame. A first positioning hole is provided on the door frame at a position corresponding to the first positioning pin. Multiple second positioning pins are provided on the side of the connecting plate facing the valve, and a second positioning hole is provided on the valve at a position corresponding to the second positioning pin.

[0017] Furthermore, in the aforementioned split-type ventilation door bearing hinge, an adjusting shim is fitted on the first positioning pin, and an adjusting shim is fitted on the second positioning pin.

[0018] Analysis reveals that this invention discloses a split-type ventilation valve bearing hinge. This hinge employs a three-set independent hinge arrangement, eliminating the hinge shaft and significantly improving installation and debugging convenience, while reducing the required civil engineering space. The use of positioning pins and bolts reduces the difficulty of installing and positioning the hinge, improving installation accuracy. Simultaneously, the use of multiple sets of rolling bearings and bushings with lubrication holes reduces resistance during valve opening and closing, facilitating operation. The hinge allows for easy lubrication of moving parts such as the rolling bearings, first hinge shaft, and second hinge shaft, reducing maintenance difficulty. Adjustment components can be easily used to adjust the valve in case of sagging. The use of set hinges effectively distributes the weight of the valve base, improving load-bearing reliability. Furthermore, the use of bolts instead of welding for connection and the addition of ribs effectively enhance the load-bearing capacity of the hinge. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. Wherein: Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention.

[0020] Figure 2 for Figure 1 A top-view structural diagram.

[0021] Figure 3 This is a schematic diagram of the structure of the first connecting part according to an embodiment of the present invention.

[0022] Figure 4 for Figure 3 A schematic diagram of the right-side structure.

[0023] Figure 5 This is a schematic diagram of the structure of the second connecting part according to an embodiment of the present invention.

[0024] Figure 6 for Figure 5 A schematic diagram of the right-side structure.

[0025] Figure 7 This is a schematic diagram of the structure of the third connecting part according to an embodiment of the present invention.

[0026] Figure 8 for Figure 7 A top-view structural diagram.

[0027] Figure 9 This is a schematic diagram of the structure of a bushing according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1. Door frame; 2. Doorway; 3. Upper hinge; 4. Lower hinge; 5. First hinge shaft; 6. First hinge seat; 7. First bolt; 8. First bearing seat; 9. Rolling bearing; 10. First end cap; 11. Second hinge shaft; 12. Second hinge seat; 13. Second bolt; 14. Second bearing seat; 15. Third bearing seat; 16. Adjusting seat; 17. Adjusting screw; 18. Fixing nut; 19. Connecting seat; 20. Connecting plate; 21. Third bolt; 22. Rib; 23. Bushing; 24. Lubrication hole; 25. First locating pin; 26. Second locating pin; 27. Second end cap. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation and not by way of limitation. Indeed, those skilled in the art will recognize that modifications and variations can be made to the invention without departing from its scope or spirit. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the invention encompass such modifications and variations falling within the scope of the appended claims and their equivalents.

[0030] In the description of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. The terms "connected," "linked," and "set up" used in this invention should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] The accompanying drawings illustrate one or more examples of the invention. The detailed description uses numerals and letters to refer to features in the drawings. Similar or analogous reference numerals in the drawings and description have been used to refer to similar or analogous parts of the invention. As used herein, the terms “first,” “second,” and “third,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0032] like Figures 1 to 9 As shown, according to an embodiment of the present invention, a split-type ventilation door bearing hinge is provided, which is used to connect the door frame 1 and the door 2, such as... Figure 2 As shown, the cross-section of valve 2 is a fan-shaped ring, as... Figure 1As shown, the hinge of this valve includes an upper hinge 3 and a lower hinge 4. The upper hinge 3 is composed of a first connecting part and a third connecting part, and the lower hinge 4 is composed of a second connecting part and a third connecting part. The upper part of the valve 2 is connected to the door frame 1 through the upper hinge 3, and the lower part of the valve 2 is connected to the door frame 1 through the lower hinge 4. The middle part of the valve 2 is connected to the door frame 1 through the lower hinge 4. This valve hinge adopts a three-set hinge arrangement (one set of upper hinge 3 and two sets of lower hinge 4). Compared with through-shaft hinges, the through shaft between the hinges is eliminated, which greatly improves the convenience of installation and debugging and reduces the reserved civil engineering space. The use of three sets of hinges can effectively distribute the weight of the valve 2 base. Among the three sets of hinges, the upper hinge 3 is mainly used for support and positioning, while the lower hinge 4 is mainly used to bear the weight and load of the valve 2.

[0033] Furthermore, such as Figure 3 and Figure 4 As shown, the first connecting part includes a first hinge shaft 5 and a first hinge seat 6. The first hinge seat 6 is connected to the door frame 1 by multiple first bolts 7, which are evenly distributed along the edge of the first hinge seat 6. Two first bearing seats 8 are provided on the side of the first hinge seat 6 facing away from the door frame 1, with one first bearing seat 8 located above the other. The two ends of the first hinge shaft 5 are rotatably connected to the two first bearing seats 8 by rolling bearings 9, respectively. A first end cap 10 is provided at the upper end of the upper first bearing seat 8, and a first end cap 10 is provided at the lower end of the lower first bearing seat 8. The first hinge seat 6 is connected and fixed to the door frame 1 by multiple first bolts 7, increasing the reliability of the connection between the first connecting part and the door frame 1.

[0034] Furthermore, such as Figure 5 and Figure 6 As shown, the second connecting part includes a second hinge shaft 11 and a second hinge seat 12. The second hinge seat 12 is connected to the door frame 1 by a plurality of second bolts 13, which are evenly distributed along the edge of the second hinge seat 12. A second bearing seat 14 and a third bearing seat 15 are provided on the side of the second hinge seat 12 facing away from the door frame 1. The second bearing seat 14 is located above the third bearing seat 15. The upper end of the second hinge shaft 11 is located inside the second bearing seat 14, and the second hinge shaft 11 is rotatably connected to the second bearing seat 14 by a rolling bearing 9. A second end cap 27 is provided at the upper end of the second bearing seat 14. The lower end of the second hinge shaft 11 is located inside the third bearing seat 15, and the second hinge shaft 11 is rotatably connected to the third bearing seat 15 by a rolling bearing 9. The second hinge seat 12 is connected and fixed to the door frame 1 by a plurality of second bolts 13, increasing the reliability of the connection between the second connecting part and the door frame 1.

[0035] Furthermore, the second connecting part also includes an adjustment assembly, which includes an adjustment seat 16, an adjustment screw 17, and a fixing nut 18. The adjustment seat 16 is disposed inside the third bearing seat 15, and is located below the rolling bearing 9 inside the third bearing seat 15. The upper end of the adjustment screw 17 is threadedly connected to the adjustment seat 16, and the lower end of the adjustment screw 17 extends outside the third bearing seat 15. The fixing nut 18 is sleeved on the adjustment screw 17 located outside the third bearing seat 15. Rotating the adjustment screw 17 can adjust the height of the rolling bearing 9 inside the third bearing seat 15. When the valve 2 droops, rotating the adjustment screw 17 can adjust the height of the rolling bearing 9 inside the third bearing seat 15, thereby adjusting the height of the valve 2 and restoring the valve 2 to its normal position. Rotating the fixing nut 18 can fix the adjustment screw 17.

[0036] Furthermore, such as Figure 7 and Figure 8 As shown, the third connecting part includes a connecting seat 19 and a connecting plate 20. The connecting plate 20 is connected to the valve 2 by several third bolts 21. One end of the connecting seat 19 is connected to the connecting plate 20, and the other end of the connecting seat 19 is provided with a mounting hole. A bushing 23 is provided in the mounting hole, and the other end of the connecting seat 19 is rotatably connected to the middle of the first hinge shaft 5 or the middle of the second hinge shaft 11 through the bushing 23. The connecting plate 20 is connected and fixed to the valve 2 by several third bolts 21, which increases the reliability of the connection between the connecting plate 20 and the door frame 1.

[0037] Furthermore, a rib 22 is also connected between the connecting seat 19 and the connecting plate 20 of the third connecting part. Two ribs 22 are provided, and the two ribs 22 are respectively located on both sides of one end of the connecting seat 19. The ribs 22 can increase the strength of the connecting seat 19 and improve the service life of the hinge.

[0038] Furthermore, such as Figure 9 As shown, a lubrication hole 24 is provided on the outer wall of the bushing 23, through which lubricating oil can be added to the bushing 23. Injecting lubricating oil into the bushing 23 through the lubrication hole 24 lubricates the bushing 23 with the first hinge shaft 5 or the second hinge shaft 11, ensuring that the friction surfaces between the first hinge shaft 5 and the second hinge shaft 11 and the bushing 23 are always lubricated. This reduces friction and wear resistance between moving parts, making the valve 2 easier to open and close, and greatly improving the service life of the upper hinge 3 and the lower hinge 4. Furthermore, the bushing 23 also has good sealing performance, effectively preventing dust, dirt, and other impurities from entering the friction surfaces, thereby maintaining the cleanliness and stable operation of the hinges.

[0039] Furthermore, multiple first positioning pins 25 are provided on the side of the first hinge seat 6 facing the door frame 1, and multiple first positioning pins 25 are provided on the side of the second hinge seat 12 facing the door frame 1. First positioning holes are provided on the door frame 1 at positions corresponding to the first positioning pins 25. Multiple second positioning pins 26 are provided on the side of the connecting plate 20 facing the valve 2, and second positioning holes are provided on the valve 2 at positions corresponding to the second positioning pins 26. Increasing the number of bolts on the first hinge seat 6, the second hinge seat 12, and the connecting plate 20 increases the connection strength, but it also brings certain difficulties to the installation of the first, second, and third connecting parts. Therefore, a fixing method combining positioning pins (first positioning pins 25 and second positioning pins 26) and bolts is adopted to meet the requirements of high-precision positioning and fastening. During installation, initial positioning is first completed using positioning pins, followed by further fixing with bolts to prevent loosening. Positioning pins are mainly used to accurately determine the relative positions between parts and ensure coaxiality, while bolts are mainly used to bear the load. Compared with welding connections, the bolted mechanical connection of the valve's load-bearing hinges makes the connections between the first hinge seat 6 and the door frame 1, between the second hinge seat 12 and the door frame 1, and between the connecting plate 20 and the valve 2 more reliable.

[0040] Furthermore, adjusting shims are fitted onto the first positioning pin 25 and the second positioning pin 26. Multiple adjusting shims can be provided. By adjusting the number of adjusting shims, the distances between the first hinge seat 6 and the second hinge seat 12 and the door frame 1, and between the connecting plate 20 and the valve 2, can be adjusted, thereby achieving adjustment of the valve 2. When the base of the valve 2 sags, the valve 2 can be restored to its normal state by adjusting the number of adjusting shims and adjusting the height of the rolling bearing 9 within the third bearing seat 15.

[0041] To facilitate maintenance, quick-removable bearing end caps (first end cap 10 and second end cap 27) are provided at the ends of the upper hinge 3 and the lower hinge 4. With the help of the end caps, maintenance personnel can regularly add lubricating grease to moving parts such as the rolling bearing 9, the first hinge shaft 6 and the second hinge shaft 11 without having to completely remove the hinges, thus reducing the difficulty of equipment maintenance.

[0042] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects: (1) The hinge of the valve adopts a split arrangement of 3 independent hinges (1 upper hinge 3 and 2 lower hinges 4), eliminating the hinge shaft, which greatly improves the convenience of installation and debugging and reduces the civil engineering space reserved for the hinge; the use of positioning pins and bolts reduces the difficulty of installation and positioning of the hinge and improves the installation accuracy; at the same time, the use of multiple sets of rolling bearings 9 and bushings 23 with lubrication holes 24 reduces the resistance during the opening and closing of the valve 2 and facilitates operation. (2) The hinge of this valve can easily lubricate the moving parts such as the rolling bearing 9, the first hinge shaft 5, and the second hinge shaft 11, reducing the difficulty of equipment maintenance; in the event of valve 2 sagging, it can be easily adjusted by adjusting the components. (3) The hinge of the valve is equipped with 3 sets of hinges, which can effectively distribute the weight of the valve 2 base and improve the load-bearing reliability. At the same time, the bolts are used instead of welding for connection and fixation, and the rib plate 22 is added, which effectively improves the load-bearing capacity of the hinge.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A split-type ventilation door bearing hinge, wherein the door bearing hinge is used to connect the door frame and the door, characterized in that, Includes top hinge and bottom hinge, among which, The upper hinge is composed of a first connecting part and a third connecting part, and the lower hinge is composed of a second connecting part and a third connecting part. The upper part of the door is connected to the door frame via the upper hinge. The lower part of the door is connected to the door frame via a lower hinge.

2. The split-type ventilation door bearing hinge according to claim 1, characterized in that, The middle part of the door is connected to the door frame via a lower hinge.

3. The split-type ventilation valve bearing hinge according to claim 1, characterized in that, The first connecting part includes a first hinge shaft and a first hinge seat. The first hinge seat is connected to the door frame by a plurality of first bolts, and the plurality of first bolts are evenly distributed along the edge of the first hinge seat. Two first bearing seats are provided on the side of the first hinge seat away from the door frame. One first bearing seat is located above the other first bearing seat. The two ends of the first hinge shaft are rotatably connected to the two first bearing seats through rolling bearings. The upper end of the upper first bearing seat is provided with a first end cap, and the lower end of the lower first bearing seat is provided with a first end cap.

4. The split-type ventilation door bearing hinge according to claim 3, characterized in that, The second connecting part includes a second hinge shaft and a second hinge seat. The second hinge seat is connected to the door frame by a plurality of second bolts, which are evenly distributed along the edge of the second hinge seat; A second bearing seat and a third bearing seat are provided on the side of the second hinge seat away from the door frame. The second bearing seat is located above the third bearing seat. The upper end of the second hinge shaft is located inside the second bearing seat. The second hinge shaft is rotatably connected to the second bearing seat through a rolling bearing. A second end cap is provided at the upper end of the second bearing seat. The lower end of the second hinge shaft is located inside the third bearing housing, and the second hinge shaft is rotatably connected to the third bearing housing via a rolling bearing.

5. The split-type ventilation door bearing hinge according to claim 4, characterized in that, The second connecting part further includes an adjustment assembly, which includes an adjustment seat, an adjustment screw, and a fixing nut. The adjustment seat is disposed inside the third bearing housing and is located below the rolling bearing inside the third bearing housing. The upper end of the adjustment screw is threadedly connected to the adjustment seat, and the lower end of the adjustment screw extends to the outside of the third bearing housing. A fixing nut is sleeved on the adjustment screw located outside the third bearing housing. Rotating the adjusting screw can adjust the height of the rolling bearing in the third bearing housing, and rotating the fixing nut can fix the adjusting screw.

6. The split-type ventilation door bearing hinge according to claim 4, characterized in that, The third connecting part includes a connecting seat and a connecting plate. The connecting plate is connected to the valve by a plurality of third bolts. One end of the connecting seat is connected to the connecting plate. The other end of the connecting seat is provided with a mounting hole. A bushing is provided in the mounting hole. The other end of the connecting seat is rotatably connected to the middle part of the first hinge shaft or the middle part of the second hinge shaft through the bushing.

7. The split-type ventilation door bearing hinge according to claim 6, characterized in that, A rib is also connected between the connecting seat and the connecting plate of the third connecting part. Two ribs are provided, and the two ribs are respectively located on both sides of one end of the connecting seat.

8. The split-type ventilation door bearing hinge according to claim 6, characterized in that, The outer wall of the bushing is provided with a lubrication hole, through which lubricating oil can be added into the bushing.

9. The split-type ventilation door bearing hinge according to claim 6, characterized in that, Multiple first positioning pins are provided on the side of the first hinge seat facing the door frame, and multiple first positioning pins are provided on the side of the second hinge seat facing the door frame. A first positioning hole is provided on the door frame at a position corresponding to the first positioning pin. Multiple second positioning pins are provided on the side of the connecting plate facing the valve, and a second positioning hole is provided on the valve at the position corresponding to the second positioning pin.

10. The split-type ventilation door bearing hinge according to claim 9, characterized in that, An adjusting shim is fitted onto the first positioning pin, and an adjusting shim is fitted onto the second positioning pin.

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