An electron accelerator shield room lifting mechanism

Abstract

This utility model belongs to the technical field of electromagnetic shielding equipment, specifically relating to a lifting mechanism for an electron accelerator shielding room. It includes a base, with several supports vertically fixed at the four corners of the top of the base. Each support has a fixed seat fixedly connected to its top, and fixed chambers are fixedly connected between the fixed seats. A movable chamber is detachably provided at the bottom of each fixed chamber. Several sliders are fixedly connected to both sides of the movable chamber. A linear slide rail is provided on the side wall of the support facing the movable chamber, and the sliders are slidably connected to adjacent linear slide rails. The advantages of this utility model are that by providing a pair of symmetrically arranged hydraulic cylinders and a synchronous hydraulic valve, the installation difficulty of the hydraulic cylinders can be effectively reduced, the installation process simplified, and maintenance of the hydraulic cylinders facilitated. Furthermore, the synchronous hydraulic valve can simultaneously control the oil inlet and outlet of the two hydraulic cylinders, thereby ensuring the consistency of the actions of the two hydraulic cylinders and achieving smooth lifting of the shielding room.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic shielding equipment technology, specifically to a lifting mechanism for an electron accelerator shielding room. Background Technology

[0002] An electron accelerator shielding room is an enclosed space used to protect against and isolate high-energy radiation (mainly X-rays and neutrons) generated by the accelerator. Its design aims to ensure the safety of personnel and equipment during irradiation and reduce the environmental impact of radiation leakage. Considering factors such as ease of operation, space utilization efficiency, equipment compatibility, safety, and maintainability, shielding rooms are typically designed with a lifting mechanism at the bottom.

[0003] For example, an electron accelerator radiation shielding device with publication number CN211929060U includes a scanning box, a scanning coil, and an outer support. A fixed upper shielding chamber and a lower shielding chamber are stacked and connected sequentially from top to bottom on the outer support. A middle shielding chamber is located between the upper and lower shielding chambers. The scanning box and the scanning coil are fixedly connected inside the upper fixed shielding chamber. The upper fixed shielding chamber is fixedly connected to the outer support, while the middle and lower shielding chambers are slidably connected to the outer support. A hydraulic cylinder is connected to the outer support below the lower shielding chamber. Fixing blocks are connected to both sides of the middle and lower shielding chambers, and a corresponding pin mechanism is connected to the outer support.

[0004] However, the aforementioned shielded room is raised and lowered only by a hydraulic cylinder in the center of the bottom of the shielded room. The construction of the hydraulic cylinder is difficult, the installation steps are complicated, and it is inconvenient to maintain the hydraulic cylinder when it malfunctions. Utility Model Content

[0005] The purpose of this invention is to solve the problems of high construction and installation difficulty and inconvenience in maintenance of existing shielded room lifting mechanisms.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An electron accelerator shielding chamber lifting mechanism includes a base. Several supports are vertically fixed to the four corners of the top of the base. A fixed seat is fixedly connected to the top of each support. Fixed chambers are fixedly connected between the fixed seats. A movable chamber is detachably provided at the bottom of each fixed chamber. Several sliders are fixedly connected to both sides of the movable chamber. A linear slide rail is provided on the side wall of each support facing the movable chamber. The sliders are slidably connected to adjacent linear slide rails. A pair of hydraulic cylinders are symmetrically arranged on both sides of the top of the base. A pair of connecting seats are symmetrically fixedly connected to the side walls of the movable chamber. The piston rods of the hydraulic cylinders are fixedly connected to the opposing connecting seats. A hydraulic pump is piped to the hydraulic chambers of each pair of hydraulic cylinders. A synchronous hydraulic valve is piped between the hydraulic pumps and the hydraulic chambers of the pair of hydraulic cylinders.

[0008] Furthermore, a hydraulic oil tank is provided at the bottom of the hydraulic oil pump, and the hydraulic oil pump is connected to the hydraulic oil tank via pipeline.

[0009] Furthermore, a plurality of first limiting seats are fixedly connected to the top of the side wall of the bracket, and a first stop bar is slidably connected inside the first limiting seat along the direction toward the fixed chamber. A plurality of first support seats are fixedly connected to the side wall of the fixed chamber, and the position and shape of the first support seats match the first stop bar.

[0010] Furthermore, a second limiting seat is provided at the bottom of the first limiting seat, and a second stop bar is slidably connected inside the second limiting seat along the direction toward the movable compartment. A translation mechanism is horizontally provided on the side wall of the second limiting seat away from the bracket, and the moving platform of the translation mechanism is fixedly connected to the end of the second stop bar facing the movable compartment.

[0011] Furthermore, the side wall of the active compartment is fixedly connected with several second support seats, the positions and shapes of which match those of the second support seats and the second baffles.

[0012] Furthermore, a top seat is fixedly connected to the bottom of each of the brackets.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. The lifting mechanism for an electron accelerator shielding room of this utility model, by setting a pair of symmetrically arranged hydraulic cylinders and synchronous hydraulic valves, can effectively reduce the installation difficulty of hydraulic cylinders, simplify the installation process, facilitate the maintenance of hydraulic cylinders, and can also control the oil inlet and return of hydraulic cylinders on both sides simultaneously through synchronous hydraulic valves, thereby ensuring the consistency of the action of hydraulic cylinders on both sides and realizing the smooth lifting of the shielding room.

[0015] 2. The lifting mechanism for an electron accelerator shielding room of this utility model, by setting up several linear slide rails and sliders, can provide a stable guiding effect for the lifting of the shielding room and ensure the stability of the shielding room during the lifting process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the lifting mechanism for the shielding chamber of an electron accelerator according to the present invention.

[0017] Figure 2 This is an enlarged schematic diagram of the structure at point A of the lifting mechanism for the shielding chamber of an electron accelerator according to this utility model.

[0018] Figure 3 This is a front view structural diagram of a lifting mechanism for an electron accelerator shielding room according to the present invention.

[0019] Figure 4 This is a side view of the lifting mechanism for an electron accelerator shielding room according to the present invention.

[0020] In the diagram: 1. Base; 2. Bracket; 3. Fixed seat; 4. Fixed compartment; 5. Movable compartment; 6. Linear slide rail; 7. Hydraulic cylinder; 8. Top seat; 9. First limit seat; 10. First stop bar; 11. Second limit seat; 12. Second stop bar; 13. Translation mechanism; 14. Hydraulic oil tank; 15. Hydraulic oil pump; 16. Synchronous hydraulic valve; 17. Slider; 18. Connecting seat. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This embodiment of an electron accelerator shielding chamber lifting mechanism includes a base 1. Several supports 2 are vertically fixedly connected to the four corners of the top of the base 1. A fixed seat 3 is fixedly connected to the top of each support 2. Fixed chambers 4 are fixedly connected between the fixed seats 3. A movable chamber 5 is detachably provided at the bottom of each fixed chamber 4. Several sliders 17 are fixedly connected to both sides of each movable chamber 5. A linear slide rail 6 is provided on the side wall of each support 2 facing the movable chamber 5. The sliders 17 are slidably connected to adjacent linear slide rails 6. A pair of hydraulic cylinders 7 are symmetrically arranged on both sides of the top of the base 1. The hydraulic cylinder 7 is used to drive the movable chamber 5 to move up and down. A pair of connecting seats 18 are symmetrically fixedly connected to the two side walls of the movable chamber 5. The piston rod of the hydraulic cylinder 7 is fixedly connected to the opposite connecting seats 18. The hydraulic chambers of the pair of hydraulic cylinders 7 are each connected to a hydraulic oil pump 15 for driving the hydraulic cylinders 7. A synchronous hydraulic valve 16 is connected between the hydraulic oil pump 15 and the hydraulic chambers of the pair of hydraulic cylinders 7 for synchronous control of the oil inlet and outlet of the pair of hydraulic cylinders 7. A hydraulic oil tank 14 is provided at the bottom of the hydraulic oil pump 15, and the hydraulic oil pump 15 is connected to the hydraulic oil tank 14 by pipeline. When the movable chamber 5 is raised, the hydraulic oil pump 15 pumps the hydraulic oil in the hydraulic oil tank 14 into the hydraulic chambers of a pair of hydraulic cylinders 7, causing the hydraulic rods of the hydraulic cylinders 7 to drive the connecting seat 18 and the movable chamber 5 to move upward along the linear slide rail 6 until the top of the movable chamber 5 abuts against the bottom of the fixed chamber 4. Conversely, when the movable chamber 5 is lowered, the hydraulic oil pump 15 inputs the hydraulic oil in the hydraulic chambers of the pair of hydraulic cylinders 7 into the hydraulic oil tank 14, causing the movable chamber 5 to move downward. When the movable chamber 5 is raised or lowered, the synchronous hydraulic valve 16 can control the synchronous oil intake and return of the hydraulic cylinders 7 on both sides, thereby ensuring the consistency of the action of the hydraulic cylinders 7 on both sides and realizing the smooth raising and lowering of the movable chamber. By setting the hydraulic cylinders 7 on both sides of the movable chamber 5, the installation of the hydraulic rods 7 is no longer limited by the requirement of installing the hydraulic cylinders 7 first, making the installation process simpler. The base 1 and bracket 2 can be built first, and then the hydraulic cylinders 7 can be installed, which facilitates the maintenance of the hydraulic rods 7.

[0023] A plurality of first limiting seats 9 are fixedly connected to the top of the side wall of the bracket 2. A first stop bar 10 is slidably connected inside the first limiting seat 9 in the direction toward the fixing chamber 4. A plurality of first support seats are fixedly connected to the side wall of the fixing chamber 4. The positions and shapes of the first support seats and the first stop bars 10 are matched. During installation of the fixing chamber 4, the first stop bars 10 move in the direction toward the fixing chamber 4 until they insert into the bottom of the first support seats, providing limiting support to the bottom of the fixing chamber 4 and improving the installation stability of the fixing chamber 4.

[0024] A second limiting seat 11 is provided at the bottom of the first limiting seat 9. A second stop bar 12 is slidably connected inside the second limiting seat 11 along the direction toward the movable compartment 5. A translation mechanism 13 is horizontally provided on the side wall of the second limiting seat 11 away from the bracket 2. The moving platform of the translation mechanism 13 is fixedly connected to the end of the second stop bar 12 facing the movable compartment 5. A plurality of second support seats are fixedly connected to the side wall of the movable compartment 5. The position and shape of the second support seats match those of the second stop bar 12. A top seat 8 is fixedly connected to the bottom of each bracket 2. When the movable chamber 5 is raised to the processing position, the translation mechanism 13 drives the second stop bar 12 to move in the direction towards the movable chamber 5 until the second stop bar 12 inserts into the bottom of the second support seat, providing limiting support for the bottom of the movable chamber 5, improving the installation stability of the movable chamber 5, and at the same time reducing the pressure on the hydraulic cylinder 7, thus increasing the service life of the hydraulic cylinder 7; similarly, when the movable chamber 5 is lowered to the maintenance position, the top seat 8 can support the bottom of the movable chamber 5, reducing the pressure on the hydraulic cylinder 7, and further increasing the service life of the hydraulic cylinder 7.

[0025] Working principle: When the movable chamber 5 is raised, the hydraulic oil pump 15 pumps the hydraulic oil in the hydraulic oil tank 14 into the hydraulic chambers of a pair of hydraulic cylinders 7, causing the hydraulic rods of the hydraulic cylinders 7 to drive the connecting seat 18 and the movable chamber 5 to move upward along the linear slide rail 6 until the top of the movable chamber 5 abuts against the bottom of the fixed chamber 4. Conversely, when the movable chamber 5 is lowered, the hydraulic oil pump 15 inputs the hydraulic oil in the hydraulic chambers of the pair of hydraulic cylinders 7 into the hydraulic oil tank 14, causing the movable chamber 5 to move downward. When the movable chamber 5 is raised or lowered, the synchronous hydraulic valve 16 can control the synchronous oil intake and return of the hydraulic cylinders 7 on both sides, thereby ensuring the consistency of the action of the hydraulic cylinders 7 on both sides and realizing the smooth raising and lowering of the movable chamber. By setting the hydraulic cylinders 7 on both sides of the movable chamber 5, the installation of the hydraulic rods 7 is no longer limited by the requirement of installing the hydraulic cylinders 7 first, making the installation process simpler. The base 1 and bracket 2 can be built first, and then the hydraulic cylinders 7 can be installed, which facilitates the maintenance of the hydraulic rods 7.

[0026] During installation, the fixed chamber 4 is moved so that the first stop bar 10 moves toward the fixed chamber 4 until it inserts into the bottom of the first support seat, providing limiting support for the bottom of the fixed chamber 4 and improving its installation stability. When the movable chamber 5 is raised to the processing position, the translation mechanism 13 drives the second stop bar 12 to move toward the movable chamber 5 until it inserts into the bottom of the second support seat, providing limiting support for the bottom of the movable chamber 5 and improving its installation stability. This also reduces the pressure on the hydraulic cylinder 7 and extends its service life. Similarly, when the movable chamber 5 is lowered to the maintenance position, the top seat 8 supports the bottom of the movable chamber 5, reducing the pressure on the hydraulic cylinder 7 and further extending its service life.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electron accelerator shielded cell hoist mechanism characterized by: The base (1) includes a base (1), and several brackets (2) are vertically fixedly connected to the four corners of the top of the base (1). Each bracket (2) is fixedly connected to a fixed seat (3). Fixed chambers (4) are fixedly connected between the fixed seats (3). A movable chamber (5) is detachably provided at the bottom of the fixed chamber (4). Several sliders (17) are fixedly connected to both sides of the movable chamber (5). A linear slide rail (6) is provided on the side wall of the bracket (2) facing the movable chamber (5). The slider (17) is slidably connected to the adjacent linear slide rail (6). A pair of hydraulic cylinders (7) are symmetrically arranged on both sides of the top of the base (1). A pair of connecting seats (18) are symmetrically fixedly connected to both sides of the movable chamber (5). The piston rod of the hydraulic cylinder (7) is fixedly connected to the opposite connecting seat (18). A hydraulic oil pump (15) is piped to the hydraulic chamber of the pair of hydraulic cylinders (7). A synchronous hydraulic valve (16) is piped between the hydraulic oil pump (15) and the hydraulic chamber of the pair of hydraulic cylinders (7).

2. The lifting mechanism for an electron accelerator shielding chamber according to claim 1, characterized in that: The bottom of the hydraulic oil pump (15) is provided with a hydraulic oil tank (14), and the hydraulic oil pump (15) is connected to the hydraulic oil tank (14) by pipeline.

3. The lifting mechanism for an electron accelerator shielding chamber according to claim 1, characterized in that: The top of the side wall of the bracket (2) is fixedly connected with a number of first limiting seats (9), and the interior of the first limiting seats (9) is slidably connected with a first stop bar (10) in the direction toward the fixed chamber (4). The side wall of the fixed chamber (4) is fixedly connected with a number of first support seats, and the position and shape of the first support seats match the first stop bar (10).

4. The lifting mechanism for an electron accelerator shielding chamber according to claim 3, characterized in that: The bottom of the first limiting seat (9) is provided with a second limiting seat (11). The interior of the second limiting seat (11) is slidably connected with a second stop bar (12) in the direction toward the movable compartment (5). A translation mechanism (13) is horizontally provided on the side wall of the second limiting seat (11) away from the bracket (2). The moving platform of the translation mechanism (13) is fixedly connected to the end of the second stop bar (12) toward the movable compartment (5).

5. The lifting mechanism for an electron accelerator shielding chamber according to claim 4, characterized in that: The side wall of the active compartment (5) is fixedly connected with several second support seats, the second support seats being matched with the position and shape of the second baffle (12).

6. The lifting mechanism for an electron accelerator shielding chamber according to claim 1, characterized in that: Each of the brackets (2) is fixedly connected to a top seat (8) at its bottom.

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