Mechanism convenient to mount and dismount and nuclear fuel transverse transportation fixing device

Abstract

The utility model relates to the technical field of nuclear fuel transportation, in particular to a mechanism convenient to mount and dismount and a nuclear fuel transverse transportation fixing device. Comprising a storage unit which comprises a storage grillwork, a storage head bin and a connecting cylinder; the disassembly locking unit comprises a clamping assembly, a pushing assembly, a gear, a fixing shaft and a pawl. The containing unit comprises a supporting bottom plate and a containing plate. The nuclear fuel container loading and unloading device has the beneficial effects that an operator can more easily complete the loading and unloading process, so that the nuclear fuel container can be quickly positioned and locked or unlocked, the loading and unloading time is shortened, and the dependence on professional tools is reduced; through the design of the pressing unit, the pressing unit can transversely press and fix the nuclear fuel assembly in the transportation container, so that in the transportation process of the nuclear fuel assembly, the stability of the transportation container can be improved, and the safety of the nuclear fuel assembly in the transportation process is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of nuclear fuel transportation, in particular to a convenient installation and disassembly mechanism and a nuclear fuel horizontal transportation fixing device. Background Art

[0002] At present, the civil nuclear field in China is developing steadily, nuclear power units are operating safely and stably, and the number of nuclear power units under construction is also increasing year by year. The demand and transportation quantity of nuclear fuel assemblies are also increasing continuously. Due to the special nature of nuclear fuel, which belongs to high-risk radioactive transportation and plays a crucial role in environmental safety and public health, the safe transportation of nuclear fuel is a crucial link, and strict safety measures are required during its transportation process to ensure the safety of personnel and the environment.

[0003] Although traditional nuclear fuel transportation fixing devices can meet basic safety requirements, they are often complex, time-consuming and laborious in installation and disassembly, and there are problems of poor stability during horizontal transportation. Therefore, there is an urgent need to develop a convenient installation and disassembly mechanism and a nuclear fuel horizontal transportation fixing device. Such components and devices can not only ensure the stability and safety of nuclear fuel horizontal transportation but also achieve rapid and efficient installation and disassembly operations. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part as well as in the abstract and the title of the application of this application to avoid obscuring the purpose of this part, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] In view of the problems that the installation and disassembly of the nuclear fuel transportation fixing device in the above or existing technologies are often complex, time-consuming and laborious, and there are problems of poor stability during horizontal transportation, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a convenient installation and disassembly mechanism.

[0007] To solve the above technical problems, the present utility model provides the following technical solutions: A convenient installation and disassembly mechanism, which includes: a storage unit, including a storage grid, a storage head bin arranged at one end of the storage grid, and a connecting cylinder connected to the end of the storage head bin;

[0008] A disassembly locking unit, including two groups of clamping components arranged on both sides of the connecting cylinder, a pushing component arranged on one side of the clamping component, gears arranged on both sides of the pushing component, a fixed shaft arranged in the middle of the gears, and a pawl arranged on one side of the gears.

[0009] As a preferred embodiment of the convenient installation and disassembly mechanism of the present utility model, wherein: the clamping assembly includes a clamping rod disposed on one side of the gear, a sliding base disposed at the bottom end of the clamping rod, a connecting rod disposed on one side of the sliding base, a first rack disposed in the middle of the clamping rod, and a clamping block disposed at the upper end of the clamping rod.

[0010] As a preferred embodiment of the convenient installation and disassembly mechanism of the present utility model, wherein: the pushing assembly includes a pushing rod disposed between the two gears, a threaded rod disposed at the tail of the pushing rod, a telescopic member disposed in the middle of the pushing rod, and a pushing circular block disposed at the top of the pushing rod.

[0011] As a preferred embodiment of the convenient installation and disassembly mechanism of the present utility model, wherein: the telescopic member includes two sets of telescopic racks, two sets of telescopic plates disposed inside the two sets of telescopic racks, and springs disposed between the telescopic racks and the telescopic plates

[0012] As a preferred embodiment of the convenient installation and disassembly mechanism of the present utility model, wherein: the connecting rod includes a limiting groove disposed in the middle thereof.

[0013] As a preferred embodiment of the convenient installation and disassembly mechanism of the present utility model, wherein: the inner diameter of the connecting cylinder is equal to the outer diameter of the pushing circular block.

[0014] As a preferred embodiment of the convenient installation and disassembly mechanism of the present utility model, wherein: further includes a receiving unit disposed on one side of the disassembly locking unit;

[0015] The receiving unit includes a support bottom plate disposed below the sliding base, and multiple groups of receiving plates disposed above the support bottom plate, including an activity groove disposed in the middle thereof.

[0016] Advantageous effects of the convenient installation and disassembly mechanism of the present utility model: The present utility model designs a disassembly locking unit. By optimizing the mechanical structure, the disassembly locking structure of this solution is simple and easy to operate. Operators can complete the loading and unloading process more easily, enabling the nuclear fuel container to be quickly positioned and locked or unlocked, greatly reducing the loading and unloading time and reducing the dependence on professional tools.

[0017] In view of the fact that during the actual use process, there is also the problem of poor stability during horizontal transportation.

[0018] To solve the above technical problems, the present utility model further provides the following technical solution: A nuclear fuel horizontal transportation fixing device, which includes a convenient installation and disassembly mechanism; and a pressing unit, including a pressing plate, a plurality of pressing plate support screws arranged at both ends of the pressing plate, a plurality of adjusting screws arranged on one side of the pressing plate support screws, and a storage head bin wall arranged at one end of the pressing plate support screws.

[0019] As a preferred embodiment of the nuclear fuel horizontal transportation fixing device of the present utility model, wherein: One end of the pressing plate support screw is fixedly connected to the side of the storage head bin wall.

[0020] The beneficial effect of the nuclear fuel horizontal transportation fixing device of the present utility model: Through the design of the pressing unit, the pressing plate support screw in the pressing unit is fixed on the storage head bin, and the pressing unit can horizontally press and fix the nuclear fuel assembly in the transportation container, so that during the transportation of the nuclear fuel assembly, the stability of the transportation container can be improved, thereby ensuring the safety of the nuclear fuel assembly during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0022] Figure 1 Is the overall three-dimensional view of the present utility model.

[0023] Figure 2 Is the structural display diagram of the present utility model.

[0024] Figure 3 Is the full-sectional schematic diagram of the pushing component in the present utility model.

[0025] Figure 4 Is Figure 1 The enlarged view of A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will give a detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings of the specification.

[0027] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures or characteristics that may be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it an individual or selectively mutually exclusive embodiment with other embodiments.

[0029] Embodiment 1

[0030] Referring to Figure 1-2 , which is the first embodiment of the present utility model. This embodiment provides a convenient installation and disassembly mechanism, which includes a storage unit 100, including a storage grid 101, a storage head bin 102 provided at one end of the storage grid 101, and a connecting cylinder 103 connected to the end of the storage head bin 102;

[0031] A disassembly locking unit 300, including two groups of clamping components 301 provided on both sides of the connecting cylinder 103, a pushing component 302 provided on one side of the clamping component 301, gears 303 provided on both sides of the pushing component 302, a fixed shaft 304 provided in the middle of the gears 303, and a pawl 305 provided on one side of the gears 303.

[0032] Preferably, the clamping component 301 includes a clamping rod 301a provided on one side of the gear 303, a sliding base 301b provided at the bottom end of the clamping rod 301a, a connecting rod 301c provided on one side of the sliding base 301b, a first rack 301d provided in the middle of the clamping rod 301a, and a clamping block 301e provided at the upper end of the clamping rod 301a.

[0033] It should be noted that multiple storage grids 101 are provided, and the connection mode between every two storage grids 101 is detachable. During actual use, the number of storage grids 101 can be adjusted according to the size and quantity of the stored nuclear fuel; the shape and size of the storage head bin 102 are the same as those of the storage grid 101, and the connection mode between the storage head bin 102 and the storage grid 101 is detachable; one end of the connecting cylinder 103 is slidably sleeved in the through groove inside the storage head bin 102 to block or open the nuclear fuel inside the storage head bin 102; two sets of clamping assemblies 301 are provided and are symmetrically arranged. A pushing assembly 302 is arranged between the two sets of clamping assemblies 301; two gears 303 are provided. In this solution, the thicknesses of the two gears 303 are different, the thickness of the left gear 303 is greater than that of the right gear 303, and the connection mode between the gear 303 and the fixed shaft 304 is a movable connection; the pawl 305 can match the teeth of the gear 303; a sliding track is arranged on the sliding base 301b, and a sliding groove matching the sliding track is arranged at the tail of the clamping rod 301a, so that the clamping rod 301a can freely slide in the sliding base 301b.

[0034] During use, when the pushing assembly 302 is pushed forward, the gear 303 will rotate along with the pushing assembly 302. The rotation of the gear will cause the clamping assembly 301 to move accordingly. The clamping rod 301a slides forward in the sliding base 301b until the clamping rod 301a clamps the connecting cylinder 103 on the storage head bin 102, and then stop pushing the pushing assembly 302, thus completing the locking of the connecting cylinder 103.

[0035] In summary, the present device optimizes the mechanical structure. Through the setting of the disassembly locking unit 300, the locking of the connecting cylinder 103 is realized. The locking structure of this solution is simple and easy to operate. The operator can complete the loading and unloading process more easily, enabling the nuclear fuel container to be quickly positioned and locked or unlocked, greatly reducing the loading and unloading time. By setting the clamping assembly 301, the present device can adapt to nuclear fuel containers of different sizes and shapes, increasing its scope of application.

[0036] Embodiment 2

[0037] Referring to Figures 1 to 3 , this is the second embodiment of the present utility model, which includes a storage unit 100, including a storage grid 101, a storage head bin 102 arranged at one end of the storage grid 101, and a connecting cylinder 103 connected to the end of the storage head bin 102;

[0038] The disassembly locking unit 300 includes two sets of clamping assemblies 301 disposed on both sides of the connecting cylinder 103, a pushing assembly 302 disposed on one side of the clamping assembly 301, gears 303 disposed on both sides of the pushing assembly 302, a fixed shaft 304 disposed in the middle of the gears 303, and a pawl 305 disposed on one side of the gears 303.

[0039] Furthermore, the clamping assembly 301 includes a clamping rod 301a disposed on one side of the gear 303, a sliding base 301b disposed at the bottom end of the clamping rod 301a, a connecting rod 301c disposed on one side of the sliding base 301b, a first rack 301d disposed in the middle of the clamping rod 301a, and a clamping block 301e disposed at the upper end of the clamping rod 301a.

[0040] Furthermore, the pushing assembly 302 includes a pushing rod 302a disposed in the middle of the two gears 303, a threaded rod 302b disposed at the tail of the pushing rod 302a, a telescopic member 302c disposed in the middle of the pushing rod 302a, and a pushing round block 302d disposed at the top of the pushing rod 302a.

[0041] Furthermore, the telescopic member 302c includes two sets of telescopic racks 302c-1, two sets of telescopic plates 302c-2 disposed inside the two sets of telescopic racks 302c-1, and springs 302c-3 disposed between the telescopic racks 302c-1 and the telescopic plates 302c-2.

[0042] Furthermore, the connecting rod 301c includes a limiting groove 301c-1 disposed in the middle thereof.

[0043] Furthermore, the inner diameter of the connecting cylinder 103 is equal to the outer diameter of the pushing round block 302d.

[0044] Furthermore, a receiving unit 200 is also disposed on one side of the disassembly locking unit 300;

[0045] The receiving unit 200 includes a supporting bottom plate 201 disposed below the sliding base 301b, and multiple sets of receiving plates 202 disposed above the supporting bottom plate 201.

[0046] It should be noted that multiple storage grids 101 are provided. The connection mode between every two storage grids 101 is detachable. During actual use, the number of storage grids 101 can be adjusted according to the size and quantity of the stored nuclear fuel; the shape and size of the storage head bin 102 are the same as those of the storage grid 101, and the connection mode between the storage head bin 102 and the storage grid 101 is detachable; one end of the connecting cylinder 103 is slidably sleeved in the through groove inside the storage head bin 102 to block or open the nuclear fuel inside the storage head bin 102; two sets of clamping assemblies 301 are provided and are symmetrically arranged. In this solution, the support bottom plate 201 has a rectangular structure, and the number of the receiving plates 202 is three. The length and width of the support bottom plate 201 match the length of the three receiving plates 202 to protect the structure inside the receiving plates 202.

[0047] Preferably, two sets of symmetric sliding bases 301b are fixedly arranged on the receiving plate 202, and the height of the right sliding base 301b is greater than that of the left sliding base 301b. There is an inward-inclined angle between the two sets of sliding bases 301b. In addition, the clamping rod 301a is slidably connected to the sliding base 301b so that the clamping rod 301a inside the two sets of sliding bases 301b has a tendency to move to the middle or separate. A connecting rod 301c is fixedly connected in the middle of the two sets of sliding bases 301b, and the connecting rod 301c has the function of increasing the stability of the two sets of sliding bases 301b. A fixed shaft 304 is fixedly connected in the middle of the two sets of clamping rods 301a, and a gear 303 is slidably sleeved on each fixed shaft 304. A first rack 301d is fixedly connected in front of the clamping rod 301a, and a clamping block 301e is fixedly connected in front of the first rack 301d. The clamping block 301e, the first rack 301d and the clamping rod 301a can be an integral structure. There is a certain inclination angle between the clamping block 301e and the first rack 301d to clamp the outer wall of the connecting cylinder 103 inside.

[0048] Preferably, the teeth of the first rack 301d match the teeth of the gear 303; the two sets of telescopic racks 302c-1 of the telescopic member 302c in the pushing assembly 302 match the teeth of the gear 303; two sets of clamping assemblies 301 are provided, and a pushing assembly 302 is provided between the two sets of clamping assemblies 301. The clamping rods 301a in the two sets of clamping assemblies 301 are symmetrically arranged, and there is an up-and-down positional relationship between the two clamping rods 301a; two gears 303 are provided. In this solution, the thicknesses of the two gears 303 are different. The thickness of the left gear 303 is greater than the thickness of the right gear 303. The connection between the gear 303 and the fixed shaft 304 is a movable connection, and one end of the fixed shaft 304 is fixedly connected to the support base plate 201; the pawl 305 can match the teeth of the gear 303; a sliding track is provided on the sliding base 301b, and a chute matching the sliding track is provided at the tail of the clamping rod 301a, so that the clamping rod 301a can slide freely within the sliding base 301b.

[0049] Preferably, the pushing assembly 302 has a special structure. Among them, the inside of the push rod 302a is hollow, and a set of threaded rods 302b are slidably arranged inside the push rod 302a. A set of T-shaped bumps are fixedly arranged at the ends of the threaded rods 302b. At the same time, two sets of symmetrical slots are also opened on both sides of the push rod 302a. A set of telescopic racks 302c-1 are slidably arranged on each set of slots, and the telescopic racks 302c-1 are symmetrically arranged on both sides of the push rod 302a. Similarly, the surface of the telescopic rack 302c-1 adjacent to the threaded rod 302b is arranged in an inclined shape, and the other surface of the telescopic rack 302c-1 is clamped with the side wall of the push rod 302a. So that when the threaded rod 302b moves inward, under the action of the inclined surface, it can smoothly extrude the two sets of telescopic racks 302c-1 outward, so that they can be smoothly meshed with the gear 303 and can generate a force on it.

[0050] During use, when fixing, push the threaded rod 302b in the pushing assembly 302 forward. The T-shaped bump of the threaded rod 302b will squeeze on the inclined surface at the end of the telescopic rack 302c-1. The two sets of telescopic racks 302c-1 will expand outward under the action of the threaded rod 302b, and finally push out the telescopic racks 302c-1 on both sides. And the threaded rod 302b can drive the push rod 302a to move, so that the telescopic racks 302c-1 on both sides are respectively meshed with the gear 303, so that the gear 303 will rotate with the telescopic rack 302c-1. The rotation of the gear 303 will cause the clamping rod 301a in the clamping assembly 301 to move accordingly. While the clamping rod 301a clamps both ends of the connecting cylinder 103 on the storage head bin 102, it will also hold it against, thereby locking the connecting cylinder 103.

[0051] During disassembly, the threaded rod 302b is pulled backward, and the T-shaped bump of the threaded rod 302b exits. The inclined surface of the telescopic rack 302c-1 is no longer squeezed by the threaded rod 302b, and automatically retracts inward under the action of the spring 302c-3. At this time, when the threaded rod 302b is continuously pulled, the push rod 302a also retracts together. At this time, the gear 303, under the action of the pawl 305, will not rotate accordingly, preventing it from rotating, thus fixing the clamping rod 301a, and finally realizing the clamping effect on the outer wall of the connecting cylinder 103, facilitating the staff to quickly withdraw the connecting cylinder 103 under the clamping effect on the outer wall of the connecting cylinder 103 and take out the internal fuel.

[0052] In summary, by setting the disassembly locking unit 300 of the present device, the mechanical structure of the device is optimized, and the locking of the connecting cylinder 103 is realized. The locking structure of this solution is simple and easy to operate. The operator can complete the loading and unloading process more easily, enabling the nuclear fuel container to be quickly positioned and locked or unlocked, greatly reducing the loading and unloading time, making the loading and unloading of the nuclear fuel assembly faster, and thus improving the overall operation efficiency; by setting the clamping rod 301a in the clamping assembly 301, the design that the left and right clamping rods can move enables the device to adapt to nuclear fuel containers of different sizes and shapes, increasing its scope of application. And during disassembly, when the threaded rod 302b exits, the device can still continue to clamp the connecting cylinder 103 for fuel disassembly.

[0053] Embodiment 3

[0054] Refer to Figures 1 to 4 , which is the third embodiment of the present utility model. This embodiment further provides a nuclear fuel horizontal transportation fixing device. The pressing unit 400 includes a pressing plate 401, multiple groups of pressing plate support screws 402 arranged at both ends of the pressing plate 401, multiple groups of adjusting screws 403 arranged on one side of the pressing plate support screws 402, and a storage head bin wall 404 arranged at one end of the support screw 402.

[0055] Furthermore, the pressing plate 401 includes a movable groove 401a arranged in the middle thereof;

[0056] Furthermore, one end of the pressing plate support screw 402 is fixedly connected to the side of the storage head bin wall 404.

[0057] It should be noted that the pressing plate 401 is provided with threaded holes matching the pressing plate support screws 402 and the adjusting screws 403, and the connection between the pressing plate 401 and the pressing plate support screws 402 and the adjusting screws 403 is a threaded connection; the pressing plate support screws 402 are arranged in parallel with each other, the adjusting screws 403 are arranged in parallel with each other, and the pressing plate support screws 402 and the adjusting screws 403 are arranged in parallel with each other.

[0058] In use, connect the pressure plate 401 with the pressure plate support screw 402, and then tighten the adjusting screw 403 so that the bottom end of the adjusting screw 403 contacts the storage head bin wall 404 and ensure a tight fit.

[0059] In summary, through the design of the pressing unit 400, the pressing unit can horizontally press and fix the nuclear fuel assembly in the transportation container, realizing the horizontal fixed transportation of the nuclear fuel assembly, preventing the assembly from moving during transportation and causing damage, solving the problem of poor stability in the traditional horizontal transportation process, and improving the safety of the horizontal transportation of nuclear fuel.

[0060] Importantly, the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A convenient installation and disassembly mechanism, characterized in that: including, a storage unit (100), comprising a storage grid (101), a storage head bin (102) arranged at one end of the storage grid (101), and a connecting cylinder (103) connected to the end of the storage head bin (102); a disassembly and locking unit (300), comprising two sets of clamping components (301) arranged on both sides of the connecting cylinder (103), a pushing component (302) arranged on one side of the clamping component (301), gears (303) arranged on both sides of the pushing component (302), a fixed shaft (304) arranged in the middle of the gears (303), and a pawl (305) arranged on one side of the gears (303).

2. The convenient installation and disassembly mechanism according to claim 1, characterized in that: The clamping component (301) comprises a clamping rod (301a) arranged on one side of the gear (303), a sliding base (301b) arranged at the bottom end of the clamping rod (301a), a connecting rod (301c) arranged on one side of the sliding base (301b), a first rack (301d) arranged in the middle of the clamping rod (301a), and a clamping block (301e) arranged at the upper end of the clamping rod (301a).

3. The convenient installation and disassembly mechanism according to claim 1 or 2, characterized in that: The pushing component (302) comprises a pushing rod (302a) arranged in the middle of the two gears (303), a threaded rod (302b) arranged at the tail of the pushing rod (302a), a telescopic member (302c) arranged in the middle of the pushing rod (302a), and a pushing round block (302d) arranged at the top of the pushing rod (302a).

4. The convenient installation and disassembly mechanism according to claim 3, characterized in that: The telescopic member (302c) comprises two sets of telescopic racks (302c-1), two sets of telescopic plates (302c-2) arranged inside the two sets of telescopic racks (302c-1), and a spring (302c-3) arranged between the telescopic rack (302c-1) and the telescopic plate (302c-2).

5. The convenient installation and disassembly mechanism according to claim 2, characterized in that: The connecting rod (301c) comprises a limiting groove (301c-1) arranged in the middle thereof.

6. The convenient installation and disassembly mechanism according to claim 3, characterized in that: The inner diameter of the connecting cylinder (103) is equal to the outer diameter of the pushing round block (302d).

7. The convenient installation and disassembly mechanism according to claim 2, characterized in that: Further included is a receiving unit (200) arranged on one side of the disassembly and locking unit (300); The receiving unit (200) comprises a support bottom plate (201) arranged below the sliding base (301b), and multiple sets of receiving plates (202) arranged above the support bottom plate (201).

8. A nuclear fuel horizontal transportation fixing device, characterized in that: including the convenient installation and disassembly mechanism according to any one of claims 1 to 7, and, a pressing unit (400), comprising a pressing plate (401), multiple sets of pressing plate support screws (402) arranged at both ends of the pressing plate (401), multiple sets of adjusting screws (403) arranged on one side of the pressing plate support screws (402), and a storage head bin wall (404) arranged at one end of the pressing plate support screws (402).

9. The nuclear fuel horizontal transportation fixing device according to claim 8, characterized in that: The pressing plate (401) comprises a movable groove (401a) arranged in the middle thereof.

10. The nuclear fuel lateral transportation fixing device according to claim 8, characterized in that: One end of the pressing plate support screw (402) is fixedly connected to the side of the storage head bin wall (404).

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