Radiation protection shielding door

Abstract

The utility model relates to the technical field of shielding doors, and discloses a radiation protection shielding door which comprises a door frame and a door body, a sealing ring shaft frame is fixed to the side, close to the door body, of the door frame, a sealing ring rubber sleeve is fixed to the side, close to the door frame, of the door body, and a door body inner cavity is formed in the door body. A forward and reverse rotation motor is fixedly installed in an inner cavity of the door body, a longitudinally-arranged driving fluted disc is fixed to the output end of the forward and reverse rotation motor, a transversely-arranged driving fluted disc is fixed to the end face of the longitudinally-arranged driving fluted disc, the upper side and the lower side of the transversely-arranged driving fluted disc are meshed with transverse toothed bars, and the left side and the right side of the longitudinally-arranged driving fluted disc are meshed with longitudinal toothed bars. And a right-angle halfpace matching block is fixed at one end of the outer side of each of the transverse toothed bar and the longitudinal toothed bar. According to the radiation protection shielding door, the door frame and the door body can be connected in a locked mode through the transverse toothed bar and the longitudinal toothed bar, and the door frame and the door body can be connected in a sealed mode through the sealing ring shaft bracket and the sealing ring rubber sleeve, so that the practicability of the radiation protection shielding door in the using process is improved.

Description

Technical Field

[0001] This utility model relates to the field of shielding door technology, specifically a radiation protection shielding door. Background Technology

[0002] Radiation shielding doors are generally used in fields with radiation sources, such as scientific research and medical production. Most existing radiation shielding doors open horizontally, resulting in a large gap between the door and the frame. The door is mainly sealed with rubber strips, but this sealing method is ineffective, allowing radiation to radiate outwards from the gaps, thus posing a danger to people. Furthermore, most radiation shielding doors lack a self-locking mechanism and a structure to reinforce the seal between the door and the frame after closing, which reduces their practicality in use. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a radiation protection shielding door, which solves the problem of low sealing effect and inconvenience in increasing the seal between the door and the frame after the door is closed. This invention aims to achieve a high sealing effect and facilitate increasing the seal between the door and the frame after the door is closed.

[0004] This utility model provides the following technical solution: a radiation protection shielding door, including a door frame and a door body, the door frame and the door body are rotatably connected by hinges, a sealing ring shaft is fixed on the side of the door frame near the door body, a sealing ring sleeve is fixed on the side of the door body near the door frame, an inner cavity is opened inside the door body, a forward and reverse motor is installed and fixed inside the inner cavity, a longitudinal drive gear is fixed at the output end of the forward and reverse motor, a transverse drive gear is fixed at the end face of the longitudinal drive gear, transverse gears mesh on the upper and lower sides of the transverse drive gear, longitudinal gears mesh on the left and right sides of the longitudinal drive gear, and a right-angle trapezoidal mating block is fixed at one outer end of the transverse gear and the longitudinal gear.

[0005] The inner walls of the left and right sides of the door frame are provided with horizontal ladder fitting grooves, and the inner walls of the upper and lower sides of the door frame are provided with vertical ladder fitting grooves. The surface groove of the sealing ring sleeve forms a wrapping cavity. A limit groove is provided inside the door frame. A limit plate is fixed inside the limit groove and is fixedly connected to the sealing ring sleeve. An air storage cavity is provided inside the sealing ring sleeve. An external valve seat is fixed inside the wrapping cavity. An air guide pipe is fixed inside the door frame. An air outlet pipe is fixed on the surface of the air guide pipe. An internal valve head is slidably connected to one end of the air outlet pipe near the external valve seat. A spring is movably sleeved on the internal valve head.

[0006] Preferably, the inner valve head is slidably connected to the air outlet pipe, one end of the spring is fixedly connected to the air outlet pipe, and the other end of the spring is fixedly connected to the inner valve head. The inner valve head, the air outlet pipe, and the spring together form a spring telescopic structure.

[0007] Preferably, the air guide pipe is connected to an external air pump, multiple sets of air outlet pipes are arranged along the vertical direction of the air guide pipe, multiple sets of external valve seats are arranged along the vertical direction of the sealing ring sleeve, and the internal valve head is movably inserted into the external valve seat.

[0008] Preferably, the encapsulation cavity is in the shape of an open column, and the sealing ring sleeve is movably engaged with the sealing ring shaft frame through the encapsulation cavity. The sealing ring shaft frame and the sealing ring sleeve are in the shape of a closed rectangle.

[0009] Preferably, the horizontal toothed rod passes through the door body and is slidably connected to it, the vertical toothed rod passes through the door body and is slidably connected to it, the right-angled ladder fitting block on one side of the horizontal toothed rod is adapted to the horizontal ladder fitting groove, and the right-angled ladder fitting block on one side of the vertical toothed rod is adapted to the vertical ladder fitting groove.

[0010] Preferably, the transverse gear and the longitudinal gear are not on the same horizontal plane. The transverse gear is located on the upper and lower sides of the transverse drive gear and meshes with it, while the longitudinal gear is located on the left and right sides of the longitudinal drive gear and meshes with it.

[0011] Compared with the prior art, this utility model provides a radiation protection shielding door, which has the following beneficial effects:

[0012] 1. This radiation protection shielding door uses a forward and reverse motor to drive the longitudinal and transverse drive gears to rotate counterclockwise. The transverse drive gear can drive the horizontal gears on its upper and lower sides to move outward, and the longitudinal drive gear can drive the vertical gears on its left and right sides to move outward. At this time, the horizontal gear can drive the right-angled trapezoidal mating block on one side to move into the transverse trapezoidal mating groove, and the vertical gear can drive the right-angled trapezoidal mating block on one side to move into the longitudinal trapezoidal mating groove. During the process of the inclined surface of the right-angled trapezoidal mating block contacting the inclined surfaces of the transverse and longitudinal trapezoidal mating grooves, the force between the inclined surfaces on both sides can drive the door body to move towards the door frame, so that the door body is close to the door frame, and the door frame and the door body can be tightly connected.

[0013] 2. When the radiation protection shielding door is fitted with the door frame, the sealing ring sleeve can wrap around the outside of the sealing ring shaft frame, making the wrapping cavity fit against the surface of the sealing ring shaft frame. At the same time, the inner valve head is inserted into the outer valve seat. Then, the external air pump is started to deliver gas into the inner valve head through the air guide pipe and the air outlet pipe. The inner valve head can also deliver gas into the air storage chamber through the outer valve seat, increasing the pressure inside the air storage chamber. When the pressure inside the air storage chamber increases, the sealing ring sleeve expands and deforms. Through the force between the sealing ring sleeve and the sealing ring shaft frame, the sealing ring sleeve can tightly wrap around the surface of the sealing ring shaft frame. Thus, through the sealing connection between the sealing ring shaft frame and the sealing ring sleeve, the door frame and the door body can be sealed together. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial sectional view of the structural door body of this utility model;

[0016] Figure 3 This utility model Figure 2 Enlarged schematic diagram of a portion of the structure at point A;

[0017] Figure 4 This is a schematic diagram of the encapsulation cavity structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the horizontally placed ladder platform fitting groove of this utility model;

[0019] Figure 6 This is a main sectional view of the structural door body of this utility model.

[0020] The components are: 1. Door frame; 2. Door body; 3. Sealing ring shaft bracket; 4. Sealing ring sleeve; 5. Door inner cavity; 6. Forward and reverse motor; 7. Longitudinal drive gear plate; 8. Horizontal drive gear plate; 9. Horizontal gear rod; 10. Longitudinal gear rod; 11. Right-angle ladder mating block; 12. Horizontal ladder mating groove; 13. Longitudinal ladder mating groove; 14. Enclosure cavity; 15. Limiting groove; 16. Limiting plate; 17. Air storage cavity; 18. External valve seat; 19. Air guide pipe; 20. Air outlet pipe; 21. Internal valve head; 22. Spring. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-6This utility model provides a radiation protection shielding door, including a door frame 1 and a door body 2. The door frame 1 and the door body 2 are connected to each other by hinges. A sealing ring shaft bracket 3 is fixed on the side of the door frame 1 near the door body 2. A sealing ring rubber sleeve 4 is fixed on the side of the door body 2 near the door frame 1. An inner cavity 5 is opened inside the door body 2. A forward and reverse motor 6 is installed and fixed inside the inner cavity 5. A longitudinal drive gear 7 is fixed at the output end of the forward and reverse motor 6. A transverse drive gear 8 is fixed on the end face of the longitudinal drive gear 7. A transverse tooth 9 is meshed on the upper and lower sides of the transverse drive gear 8. A longitudinal tooth 10 is meshed on the left and right sides of the longitudinal drive gear 7. A right-angle trapezoidal mating block 11 is fixed on the outer side of the transverse tooth 9 and the longitudinal tooth 10.

[0023] The inner walls of the left and right sides of the door frame 1 are provided with horizontal ladder fitting grooves 12, and the inner walls of the upper and lower sides of the door frame 1 are provided with vertical ladder fitting grooves 13. The groove on the surface of the sealing ring sleeve 4 forms a wrapping cavity 14. The door frame 1 is provided with a limiting groove 15, and a limiting plate 16 is fixed inside the limiting groove 15. The limiting plate 16 is fixedly connected to the sealing ring sleeve 4. The sealing ring sleeve 4 is provided with an air storage cavity 17. An external valve seat 18 is fixed inside the wrapping cavity 14. An air guide pipe 19 is fixed inside the door frame 1. An air outlet pipe 20 is fixed on the surface of the air guide pipe 19. An internal valve head 21 is slidably attached to one end of the air outlet pipe 20 near the external valve seat 18. A spring 22 is movably sleeved on the internal valve head 21. The door body 2 can be rotated to open or close by a hinge set between the door frame 1 and the door body 2. After the door frame 1 and the door body 2 are fitted together, the sealing performance between the door frame 1 and the door body 2 can be improved.

[0024] Furthermore, the inner valve head 21 is slidably connected to the air outlet pipe 20, one end of the spring 22 is fixedly connected to the air outlet pipe 20, and the other end of the spring 22 is fixedly connected to the inner valve head 21. The inner valve head 21, the air outlet pipe 20, and the spring 22 together form a spring telescopic structure. When the sealing ring sleeve 4 contacts the sealing ring shaft 3, the inner valve head 21 is inserted into the outer valve seat 18. During the expansion of the sealing ring sleeve 4, the spring telescopic structure composed of the inner valve head 21, the air outlet pipe 20, and the spring 22 contracts, so that the inner valve head 21 can always be inserted into the outer valve seat 18 during the deformation of the sealing ring sleeve 4.

[0025] Furthermore, the air guide pipe 19 is connected to an external air pump, and multiple sets of air outlet pipes 20 are arranged along the vertical direction of the air guide pipe 19. Multiple sets of external valve seats 18 are arranged along the vertical direction of the sealing ring sleeve 4. The internal valve head 21 is movably inserted into the external valve seat 18. Gas can be delivered into the air storage chamber 17 through the air guide pipe 19, air outlet pipe 20, internal valve head 21 and external valve seat 18, so that the internal pressure of the air storage chamber 17 increases, and the sealing ring sleeve 4 can wrap around the surface of the sealing ring shaft frame 3.

[0026] Furthermore, the enclosing cavity 14 is in the shape of an open column, and the sealing ring sleeve 4 is movably engaged with the sealing ring shaft frame 3 through the enclosing cavity 14. The sealing ring shaft frame 3 and the sealing ring sleeve 4 are in the shape of a closed rectangle, which facilitates the sealing along the connection between the door frame 1 and the door body 2 through the mutual engagement between the sealing ring sleeve 4 and the sealing ring shaft frame 3.

[0027] Furthermore, the horizontal toothed rod 9 passes through the door body 2 and is slidably connected to it, and the vertical toothed rod 10 passes through the door body 2 and is slidably connected to it. The right-angled ladder fitting block 11 on one side of the horizontal toothed rod 9 is adapted to the horizontal ladder fitting groove 12, and the right-angled ladder fitting block 11 on one side of the vertical toothed rod 10 is adapted to the vertical ladder fitting groove 13. During the process of the inclined surface on one side of the right-angled ladder fitting block 11 contacting the inclined surface on one side of the horizontal ladder fitting groove 12 or the vertical ladder fitting groove 13, the force between the inclined surfaces on both sides can drive the door body 2 to move towards the door frame 1, so that the door body 2 is close to the door frame 1.

[0028] Furthermore, the horizontal toothed rod 9 and the vertical toothed rod 10 are not on the same horizontal plane. The horizontal toothed rod 9 is located on the upper and lower sides of the horizontal drive toothed disc 8 and meshes with it. The vertical toothed rod 10 is located on the left and right sides of the vertical drive toothed disc 7 and meshes with it. This makes it easy for the horizontal drive toothed disc 8 to drive the horizontal toothed rods 9 on its upper and lower sides to move outward, and for the vertical drive toothed disc 7 to drive the vertical toothed rods 10 on its left and right sides to move outward, thereby enabling the door body 2 to lock with the door frame 1.

[0029] In use, the hinges between the door frame 1 and the door body 2 allow the door body 2 to rotate open or close. When the door body 2 is closed and fitted against the door frame 1, the forward / reverse motor 6 is activated, causing the longitudinal drive gear 7 and the transverse drive gear 8 to rotate counterclockwise. The transverse drive gear 8 moves its upper and lower horizontal gears 9 outwards, and the longitudinal drive gear 7 moves its left and right vertical gears 10 outwards. At this time, the horizontal gears 9 move one side of their right-angled trapezoidal locking block 11 into the transverse trapezoidal locking groove 12, and the vertical gears 10 move one side of their right-angled trapezoidal locking block 11 into the longitudinal trapezoidal locking groove 13. Therefore, the door body 2 can be self-locked to the door frame 1. Furthermore, during the contact between the inclined surface of the right-angled trapezoidal locking block 11 and the inclined surfaces of the transverse and longitudinal trapezoidal locking grooves 12 and 13, the force between the inclined surfaces further moves the door body 2 towards the door frame 1. The movement causes the door body 2 to fit tightly against the door frame 1, thus tightly connecting the door frame 1 and the door body 2. Furthermore, when the door body 2 and the door frame 1 are fitted together, the sealing ring sleeve 4 can wrap around the outside of the sealing ring shaft bracket 3, causing the wrapping cavity 14 to fit against the surface of the sealing ring shaft bracket 3. Simultaneously, the inner valve head 21 is inserted into the outer valve seat 18. Then, the external air pump is activated to deliver gas into the inner valve head 21 through the air guide pipe 19 and the air outlet pipe 20. The inner valve head 21, through the outer valve seat 18, can deliver gas into the air storage chamber 17, increasing the pressure inside the air storage chamber 17. When the pressure inside the air storage chamber 17 increases, the sealing ring sleeve 4 expands and deforms. Through the force between the sealing ring sleeve 4 and the sealing ring shaft bracket 3, the sealing ring sleeve 4 can tightly wrap around the surface of the sealing ring shaft bracket 3. Thus, through the sealing connection between the sealing ring shaft bracket 3 and the sealing ring sleeve 4, the door frame 1 and the door body 2 are sealed together.

[0030] 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. A radiation protection shielding door comprising a door frame (1) and a door body (2), characterized in that: The door frame (1) and the door body (2) are rotatably connected through a hinge, one side of the door frame (1) close to the door body (2) is fixed with a sealing ring shaft support (3), one side of the door body (2) close to the door frame (1) is fixed with a sealing ring rubber sleeve (4), the inside of the door body (2) is provided with a door body cavity (5), the inside of the door body cavity (5) is fixedly installed with a forward and reverse motor (6), the output end of the forward and reverse motor (6) is fixed with a vertical drive gear disc (7), the end surface of the vertical drive gear disc (7) is fixed with a horizontal drive gear disc (8), the upper and lower sides of the horizontal drive gear disc (8) are engaged with horizontal tooth rods (9), the left and right sides of the vertical drive gear disc (7) are engaged with vertical tooth rods (10), one end of the outer side of the horizontal tooth rods (9) and the vertical tooth rods (10) is fixed with a right-angle ladder step fitting block (11). The inside of the left and right sides of the door frame (1) is provided with horizontal ladder step fitting grooves (12), the inside of the upper and lower sides of the door frame (1) is provided with vertical ladder step fitting grooves (13), the surface groove of the sealing ring rubber sleeve (4) forms a wrapping cavity (14), the inside of the door frame (1) is provided with a limiting groove (15), the inside of the limiting groove (15) is fixedly installed with a limiting plate (16), and the limiting plate (16) is fixedly connected with the sealing ring rubber sleeve (4), the inside of the sealing ring rubber sleeve (4) is provided with a gas storage cavity (17), the inside of the wrapping cavity (14) is fixedly installed with an external valve seat (18), the inside of the door frame (1) is fixedly installed with a gas guide pipe (19), the surface of the gas guide pipe (19) is fixedly installed with a gas outlet pipe (20), one end of the gas outlet pipe (20) close to the external valve seat (18) is slidably provided with an internal valve head (21), the internal valve head (21) is movably sleeved with a spring (22).

2. The radiation shielding door of claim 1, wherein: The internal valve head (21) and the gas outlet pipe (20) are slidably connected, one end of the spring (22) is fixedly connected with the gas outlet pipe (20), the other end of the spring (22) is fixedly connected with the internal valve head (21), the internal valve head (21), the gas outlet pipe (20) and the spring (22) form a spring telescopic structure.

3. The radiation shielding door of claim 1, wherein: The gas guide pipe (19) is connected with an external air pump, a plurality of groups of the gas outlet pipe (20) are arranged in the up and down direction of the gas guide pipe (19), a plurality of groups of the external valve seat (18) are arranged in the up and down direction of the sealing ring rubber sleeve (4), and the internal valve head (21) is movably inserted with the external valve seat (18).

4. The radiation shielding door of claim 1, wherein: The wrapping cavity (14) is in the shape of an open column, the sealing ring rubber sleeve (4) is movably clamped with the sealing ring shaft support (3) through the wrapping cavity (14), and the sealing ring shaft support (3) and the sealing ring rubber sleeve (4) are in the shape of a closed rectangle.

5. The radiation shielding door of claim 1, wherein: The horizontal tooth rods (9) penetrate through the door body (2) and are slidably connected therewith, the vertical tooth rods (10) penetrate through the door body (2) and are slidably connected therewith, the right-angle ladder step fitting block (11) on one side of the horizontal tooth rods (9) is matched with the horizontal ladder step fitting groove (12), and the right-angle ladder step fitting block (11) on one side of the vertical tooth rods (10) is matched with the vertical ladder step fitting groove (13).

6. The radiation shielding door of claim 1, wherein: The transverse rack rod (9) and the longitudinal rack rod (10) are not in the same horizontal plane, the transverse rack rod (9) is located on the upper and lower sides of the transverse driving gear disc (8) and engaged with the same, and the longitudinal rack rod (10) is located on the left and right sides of the longitudinal driving gear disc (7) and engaged with the same.

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