Remote uncovering mechanism

Abstract

The utility model relates to a remote uncovering mechanism, and belongs to the technical field of radioactive ventilation system equipment. Comprising a mounting base, a mounting cavity is formed in the mounting base, a vertically-arranged screw rod is rotationally connected into the mounting cavity, the top end of the screw rod extends to the outer portion of the mounting base, and a horizontally-arranged driving shaft is rotationally connected into the mounting base; one end of the driving shaft extends to the exterior of the mounting base and is used for being connected with a filter cover plate, a driving block is in threaded connection with the screw rod, a driving rod perpendicular to the driving shaft is hinged to one side of the driving block, a connecting column is coaxially arranged in the middle of the driving shaft, and a connecting hole penetrating in the radial direction of the connecting column is formed in the side wall of the connecting column; and the driving rod is inserted into the connecting hole in a sliding manner. According to the utility model, the problem that the service life is short when the auxiliary filter cover plate is operated by using a reduction gearbox transmission gear box in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to a remote cover opening mechanism, belonging to the technical field of radioactive liquid purification system equipment. Background Art

[0002] With the large-scale development of nuclear energy in my country, the amount of spent fuel produced by nuclear power plants is increasing day by day, and my country is also accelerating the design and construction of spent fuel reprocessing plants. At present, in the auxiliary filtration system of nuclear power plants, the auxiliary filter is a key equipment in the system, and the opening and closing performance of the auxiliary filter cover is an important performance indicator of the auxiliary filter.

[0003] The main problem with the current drive mechanism for opening the auxiliary filter is that it uses a reduction gear transmission gearbox with rubber or plastic seals and lubricating oil inside. After long-term use, the seals and lubricating oil age and the seals fail, which can easily cause jamming inside the gearbox.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a remote cover opening mechanism, which solves the problem of short service life of operating the auxiliary filter cover plate by using a reduction box transmission gear box in the prior art.

[0006] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0007] A remote cover opening mechanism comprises a mounting base, a mounting cavity is provided in the mounting base, a vertically arranged screw is rotatably connected in the mounting cavity, the top end of the screw extends to the outside of the mounting base, a horizontally arranged drive shaft is rotatably connected in the mounting base, one end of the drive shaft extends to the outside of the mounting base for connecting to a filter cover, a drive block is threadedly connected to the screw, a drive rod perpendicular to the drive shaft is hinged on one side of the drive block, a connecting column is coaxially provided in the middle of the drive shaft, a connecting hole is radially penetrated through the side wall of the connecting column, and the drive rod is slidably inserted into the connecting hole.

[0008] The utility model is further configured as follows: a key groove is provided at one end of the drive shaft extending to the outside of the mounting base.

[0009] The utility model is further configured as follows: a first mounting hole is provided on the top of the mounting base, the first mounting hole is connected to the mounting cavity, the diameter of the first mounting hole is larger than the outer diameter of the screw, a first flange seat is provided in the first mounting hole, a second mounting hole is provided at the bottom of the mounting cavity, and both ends of the screw are rotatably connected in the first flange seat and the second mounting hole respectively.

[0010] The utility model is further configured as follows: bearings are respectively arranged in the first mounting hole and the second mounting hole at both ends of the screw.

[0011] The utility model is further configured as follows: a third mounting hole and a fourth mounting hole are respectively opened on both sides of the mounting base, the third mounting hole and the fourth mounting hole are respectively connected to the mounting cavity, the diameter of the third mounting hole is larger than the diameter of the connecting column, a second flange seat is provided in the third mounting hole, and both ends of the drive shaft are respectively rotatably connected to the second flange seat and the fourth mounting hole.

[0012] The utility model is further configured as follows: both ends of the connecting column are respectively provided with brass washers abutting against the inner wall of the installation cavity and the end surface of the second flange seat.

[0013] The utility model is further configured as follows: one end of the screw rod extending to the outside of the mounting base is configured as a hexagonal column.

[0014] The beneficial effects of the utility model are:

[0015] 1. By setting the screw rod, driving rod and driving shaft together, when the filter cover needs to be opened, the screw rod is rotated, the screw rod drives the driving block to move up and down, and synchronously drives the driving rod to flip. During the flipping process of the driving rod, the driving shaft is rotated through the connecting column, thereby driving the external filter cover to be lifted, which is more convenient to operate, simple in structure and not easy to be damaged;

[0016] 2. The first mounting hole and the third mounting hole are respectively opened on the mounting base, and the first flange seat and the second flange seat are used for limiting, so as to facilitate the disassembly of the drive shaft and the screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is an overall sectional view of the utility model.

[0019] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0020] In the figure: 1. mounting base; 2. mounting cavity; 3. screw; 4. drive shaft; 5. keyway; 6. drive block; 7. drive rod; 8. connecting column; 9. connecting hole; 10. first mounting hole; 11. first flange seat; 12. second mounting hole; 13. bearing; 14. third mounting hole; 15. fourth mounting hole; 16. second flange seat; 17. brass washer. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific illustrations.

[0022] like Figure 1-Figure 3 As shown, a remote cover opening mechanism includes a mounting base 1, a mounting cavity 2 is provided in the mounting base 1, a vertically arranged screw rod 3 is rotatably connected in the mounting cavity 2, the top end of the screw rod 3 extends to the outside of the mounting base 1, and the end of the screw rod 3 extending to the outside of the mounting base 1 is arranged in a hexagonal column shape. A horizontally arranged drive shaft 4 is rotatably connected in the mounting base 1, one end of the drive shaft 4 extends to the outside of the mounting base 1 for connecting to the filter cover plate, and a keyway 5 is provided at the end of the drive shaft 4 extending to the outside of the mounting base 1.

[0023] A driving block 6 is threadedly connected to the screw rod 3, and a driving rod 7 perpendicular to the driving shaft 4 is hinged on one side of the driving block 6. A connecting column 8 is coaxially provided in the middle of the driving shaft 4, and a connecting hole 9 is opened on the side wall of the connecting column 8 along its radial direction. The driving rod 7 is slidably inserted into the connecting hole 9.

[0024] A first mounting hole 10 is provided at the top of the mounting base 1, and the first mounting hole 10 is connected to the mounting cavity 2. The diameter of the first mounting hole 10 is larger than the outer diameter of the screw 3. A first flange seat 11 is provided in the first mounting hole 10, and a second mounting hole 12 is provided at the bottom of the mounting cavity 2. Both ends of the screw 3 are rotatably connected in the first flange seat 11 and the second mounting hole 12. Bearings 13 are provided in the first mounting hole 10 and the second mounting hole 12 at both ends of the screw 3.

[0025] The mounting base 1 has a third mounting hole 14 and a fourth mounting hole 15 on both sides, which are connected to the mounting cavity 2 respectively. The diameter of the third mounting hole 14 is larger than the diameter of the connecting column 8. A second flange seat 16 is provided in the third mounting hole 14. Both ends of the drive shaft 4 are rotatably connected to the second flange seat 16 and the fourth mounting hole 15 respectively. Both ends of the connecting column 8 are provided with brass washers 17 that abut against the inner wall of the mounting cavity 2 and the end surface of the second flange seat 16.

[0026] By respectively opening the first mounting hole 10 and the third mounting hole 14 on the mounting base 1 and limiting the positions by the first flange seat 11 and the second flange seat 16 , the disassembly of the drive shaft 4 and the screw rod 3 is facilitated.

[0027] The implementation principle of the utility model is:

[0028] By arranging the screw rod 3, the driving rod 7 and the driving shaft 4 to cooperate with each other, when the filter cover needs to be opened, the screw rod 3 is rotated, and the screw rod 3 drives the driving block 6 to move up and down, and simultaneously drives the driving rod 7 to flip. During the flipping of the driving rod 7, the driving shaft 4 is rotated through the connecting column 8, thereby driving the external filter cover to be lifted, which makes the operation more convenient, and the structure is simple and not easy to be damaged.

[0029] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A remote cover opening mechanism, characterized in that: The invention comprises a mounting base (1), wherein a mounting cavity (2) is provided in the mounting base (1), a vertically arranged screw rod (3) is rotatably connected in the mounting cavity (2), the top end of the screw rod (3) extends to the outside of the mounting base (1), a horizontally arranged drive shaft (4) is rotatably connected in the mounting base (1), one end of the drive shaft (4) extends to the outside of the mounting base (1) for connecting to a filter cover plate, a drive block (6) is threadedly connected on the screw rod (3), a drive rod (7) perpendicular to the drive shaft (4) is hinged on one side of the drive block (6), a connecting column (8) is coaxially provided in the middle of the drive shaft (4), a connecting hole (9) is provided on the side wall of the connecting column (8) and penetrates in a radial direction thereof, and the drive rod (7) is slidably inserted in the connecting hole (9).

2. A remote cover opening mechanism according to claim 1, characterized in that: A keyway (5) is provided at one end of the drive shaft (4) extending to the outside of the mounting base (1).

3. A remote cover opening mechanism according to claim 1, characterized in that: A first mounting hole (10) is provided at the top of the mounting base (1), the first mounting hole (10) is connected to the mounting cavity (2), the diameter of the first mounting hole (10) is larger than the outer diameter of the screw rod (3), a first flange seat (11) is provided in the first mounting hole (10), a second mounting hole (12) is provided at the bottom of the mounting cavity (2), and two ends of the screw rod (3) are rotatably connected to the first flange seat (11) and the second mounting hole (12) respectively.

4. A remote cover opening mechanism according to claim 3, characterized in that: Bearings (13) are provided at both ends of the screw rod (3) and in the first mounting hole (10) and the second mounting hole (12) respectively.

5. The remote cover opening mechanism according to claim 1, characterized in that: A third mounting hole (14) and a fourth mounting hole (15) are respectively provided on both sides of the mounting base (1); the third mounting hole (14) and the fourth mounting hole (15) are respectively connected to the mounting cavity (2); the diameter of the third mounting hole (14) is larger than the diameter of the connecting column (8); a second flange seat (16) is provided in the third mounting hole (14); and the two ends of the drive shaft (4) are respectively rotatably connected to the second flange seat (16) and the fourth mounting hole (15).

6. A remote cover opening mechanism according to claim 5, characterized in that: Both ends of the connecting column (8) are provided with brass washers (17) respectively abutting against the inner wall of the installation cavity (2) and the end surface of the second flange seat (16).

7. The remote cover opening mechanism according to claim 1, characterized in that: One end of the screw rod (3) extending to the outside of the mounting base (1) is configured in a hexagonal column shape.

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