Anti-pinch device for medical anti-radiation door
By installing a deflector plate and abutment joint on the radiation protection door, the problem of fingers being pinched when the door is closed has been solved, thus improving both safety and convenience.
Patent Information
- Application Number
- CN202422137091.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-09-02
AI Technical Summary
Existing radiation protection doors can easily pinch fingers when closed, especially when people are in a hurry, as their hands may get caught in the edge of the door panel, leading to accidental injury.
An anti-pinch device for medical radiation protection doors was designed. A deflection plate is installed on the lower front side of the door panel. The deflection plate is connected to the inner frame through a connecting shaft. An abutment joint is set at the right end of the deflection plate. When the door panel is closed, the abutment joint first abuts against the door frame to form a gap and prevent complete closure. At the same time, a telescopic component and an abutment spring are used for buffering to prevent impact.
It effectively prevents fingers or palms from being pinched when the door panel closes, improving safety. The device has a simple structure, is easy to install and disassemble, and facilitates the replacement of the retaining spring.
Smart Images
Figure CN223661694U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of radiation protection door, especially to a medical radiation protection door anti-pinch device. BACKGROUND
[0002] The radiation protection door is also called radiation protection door, lead door, lead plate door and radiation protection door, which is suitable for blocking the entrance and exit of radiation and is mainly used in medical places, CT machine room, X-ray room, DR machine room, industrial flaw detection room, mining area, dental clinic, pet hospital, beauty and medical organization, nuclear medicine experiment and other places with radiation.
[0003] The existing radiation protection door plate is generally a square structure, and the personnel needs to ensure that the door plate is in the closed state when entering and leaving to ensure that the internal light does not leak to the outside personnel to cause radiation. When closing, people drive the door plate to close through the handle or the edge of the door plate. In some special cases, the door plate may be closed in a hurry, at which time their hands may be placed at the edge of the door plate, and the person closing the door may continue to close the door without noticing, which may cause the fingers of the person pushing the door to be pinched. Therefore, the utility model provides a medical radiation protection door anti-pinch device. UTILITY MODEL CONTENT
[0004] To solve the technical problem that the hand fingers are pinched when placed at the edge of the door plate, the utility model provides a medical radiation protection door anti-pinch device.
[0005] The utility model adopts the following technical scheme: a medical radiation protection door anti-pinch device, including door frame, the left end of the inner side of door frame is rotatably installed with door plate through hinge, the lower front and back of the far end of door plate away from hinge is provided with round hole, the round hole is rotatably sleeved with connecting shaft, the rear end of connecting shaft is fixed with inner side frame, the front surface of inner side frame is in sliding contact with the rear surface of door plate, the front side of connecting shaft is rotatably installed with deflection frame in the front side of door plate.
[0006] The deflection frame includes a deflection plate, the left end of the deflection plate is integrally formed with a stepping plate, and the end away from the stepping plate of the deflection plate is provided with a connecting ring, the connecting ring is fixed with an extension piece, the extension piece is hollow designed to form an installation cavity, the installation cavity is provided with an abutting spring, the front side of the extension piece is fixed with an abutting head, and the rear end of the abutting head is in abutment with the abutting spring.
[0007] As a further improvement of the above-mentioned scheme, the telescopic part comprises a fixed sleeve fixed in the connecting ring, a telescopic sleeve sleeved in the fixed sleeve and sliding forward and backward, and an abutting head fixed at the front end of the telescopic sleeve. The telescopic part can move forward and backward, and an abutting spring is arranged in cooperation. When the door plate is closed, the abutting head will first contact the door frame and gradually shrink inward, which can play a buffering role and avoid damage caused by the abutting head hitting the door frame when the door plate is closed with force.
[0008] As a further improvement of the above-mentioned scheme, three groups of guide grooves are arranged on the inner surface of the fixed sleeve from back to front, and the three groups of guide grooves are arranged in a ring shape. The front end of the guide groove does not penetrate the front surface of the fixed sleeve. The outer surface of the telescopic sleeve is provided with three guide blocks, and the three guide blocks are respectively arranged in the three guide grooves. The arrangement of the guide groove and the guide block enables the telescopic sleeve to move forward and backward in the fixed sleeve, and facilitates the installation of the telescopic sleeve, so that the telescopic sleeve will not be disconnected from the fixed sleeve due to excessive stroke.
[0009] As a further improvement of the above-mentioned scheme, the rear side of the connecting ring is cut to form a mounting groove, and a cover plate is mounted in the mounting groove by screws. The rear surface of the cover plate is flush with the rear surface of the deflection plate. The telescopic sleeve and the abutting spring can be inserted into the fixed sleeve through the rear side of the fixed sleeve, and the cover plate can be fixed to the abutting spring, which facilitates the installation and disassembly of the telescopic sleeve and the abutting spring.
[0010] As a further improvement of the above-mentioned scheme, the connecting ring is away from the right side of the door plate, and the distance between them is 3-5 cm. The front surface of the abutting head is 5 cm away from the front surface of the door plate. When the door plate is closed, the abutting head will first abut against the door frame. At this time, the door plate cannot be completely closed due to the action of the abutting head, and there is a gap between the door plate and the door frame, which is larger than the thickness of a person's palm, thereby avoiding the phenomenon of pinching the palm when the door plate is closed.
[0011] As a further improvement of the above-mentioned scheme, the front and rear ends of the connecting shaft are integrally formed with a fixed head. The fixed head is a square structure, and the width of the fixed head is not greater than the outer diameter of the connecting shaft. The connecting shaft is directly inserted into the circular hole of the door plate without interference, which facilitates the installation and disassembly of the connecting shaft.
[0012] As a further improvement of the above-mentioned scheme, the rear surface of the deflection frame and the front surface of the inner side frame are recessed to form a fixed groove. The fixed head is inserted into the fixed groove, and they are fixed by screws. The square structure of the fixed groove and the square structure of the fixed head facilitate their insertion and prevent them from sliding after connection, thereby facilitating the synchronous rotation of the deflection frame and the inner side frame.
[0013] As further improvement of the above scheme, the front side surface of the round hole is provided with an arc-shaped slot, the included angle of the arc-shaped slot is 77 degrees, and the front side of the connecting shaft is provided with a limiting block, the maximum deflection angle of the limiting block is 77 degrees, and the maximum deflection angle of the whole deflection frame is 77 degrees, when the deflection frame is at the maximum deflection angle, the outer circle surface of the connecting ring is in contact with the inner side surface of the door frame, at this time, the door plate can be completely closed, and the end of the deflection frame away from the connecting shaft is heavy, when the door plate is opened, one end of the connecting ring will be automatically deflected downward under the action of gravity, thereby being able to block the next closing.
[0014] Compared with the prior art, the utility model has the advantages that:
[0015] 1、 the utility model discloses a deflection plate is installed below the front side of the door plate and is connected with the inner side frame through the connecting shaft, and the right end of the deflection plate is provided with an abutting head, when the door plate is closed, the abutting head will first abut against the door frame, at this time, the door plate cannot be completely closed under the action of the abutting head, and there is a gap between the door plate and the door frame, which is greater than the thickness of a palm, thereby avoiding the hand clamping phenomenon caused by placing the palm on the inner side surface of the door frame when the door plate is closed.
[0016] 2、 the utility model discloses that the deflection plate is provided with a telescopic piece, and the telescopic piece is provided with an abutting spring inside, and the abutting spring abuts against the fixed head, when the door plate is closed, the abutting head will first contact the door frame and gradually shrink inward, which can play a buffering role and avoid damage caused by the abutting head and the door frame impacting when the door plate is closed with force.
[0017] 3、 the device has simple overall structure, can be quickly installed and disassembled, and is convenient for replacing the abutting spring inside, thereby improving convenience. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is an overall structure schematic view of the anti-pinch device for the medical anti-radiation door.
[0019] Figure 2 It is a front and back isogonal axonometric drawing. Figure 1
[0020] Figure 3 It is a structure schematic view of the deflection frame, the inner side frame, the abutting head and the telescopic piece in the utility model. Figure 1
[0021] It is a structure schematic view of the deflection frame and the abutting head in the utility model. Figure 4 Figure 3 It is a structure schematic view of the deflection frame and the connecting shaft in the utility model.
[0022] Figure 5 Figure 4
[0023] Figure 6 The utility model provides a kind of door plate closed structure schematic view of medical anti-radiation door anti-pinch device.
[0024] Main symbol explanation:
[0025] 1, door frame;2, door plate;3, deflection frame;31, deflection plate;32, pedal;33, connecting ring;34, fixed groove;4, telescopic piece;41, fixed sleeve;42, telescopic sleeve;43, guide slot;5, abutting head;6, inner side frame;7, connecting shaft;71, fixed head;8, abutting spring. DETAILED DESCRIPTION
[0026] Below, the utility model is further described in combination with the drawings and specific embodiments, and it needs to be explained that under the premise of not conflicting, the following described each embodiment or each technical feature between can be arbitrarily combined to form new embodiment.
[0027] Embodiment:
[0028] Please combine Figures 1-6 The medical anti-radiation door anti-pinch device of the embodiment includes door frame 1, door plate 2 is rotatably installed in the left end of the inner side of door frame 1 by hinge, circular hole is provided in the front and rear of the lower side of the end of door plate 2 away from hinge, connecting shaft 7 is rotatably sleeved in the circular hole, inner side frame 6 is fixed to the rear end of connecting shaft 7, the front surface of inner side frame 6 is in sliding contact with the rear surface of door plate 2, and deflection frame 3 is rotatably installed on the front side of door plate 2.
[0029] Deflection frame 3 includes deflection plate 31, pedal 32 is integrally formed on the left end of deflection plate 31, connecting ring 33 is arranged on the end of deflection plate 31 away from pedal 32, telescopic piece 4 is fixed in connecting ring 33, the inside of telescopic piece 4 is hollowly designed to form installation cavity, abutting spring 8 is arranged in the installation cavity, abutting head 5 is fixed to the front side of telescopic piece 4, and the rear end of abutting head 5 is in abutment with abutting spring 8.
[0030] Telescopic piece 4 includes fixed sleeve 41 fixed in connecting ring 33, telescopic sleeve 42 is slidably sleeved in the front and rear of the inside of fixed sleeve 41, abutting head 5 is fixed to the front end of telescopic sleeve 42, telescopic piece 4 can move forward and backward, and abutting spring 8 is arranged in cooperation, when door plate 2 is closed, abutting head 5 will first contact door frame 1 and gradually shrink inward, which can play the role of buffering, to avoid damage caused by the impact between abutting head 5 and door frame 1 when door plate 2 is closed with force.
[0031] The inner ring surface of the fixed sleeve 41 is provided with three groups of guide grooves 43 from back to front, and the three groups of guide grooves 43 are annularly distributed. The front end of the guide groove 43 does not penetrate the front side surface of the fixed sleeve 41. The outer ring surface of the telescopic sleeve 42 is provided with three guide blocks at the rear end. The three guide blocks are respectively and slidingly arranged in the three guide grooves 43. The arrangement of the guide groove 43 and the guide block enables the telescopic sleeve 42 to move forward and backward along the inside of the fixed sleeve 41, and facilitates the installation of the telescopic sleeve 42, so that the telescopic sleeve 42 will not be disconnected from the fixed sleeve 41 due to excessive stroke.
[0032] The rear side of the connecting ring 33 is cut to form a mounting groove. A cover plate is mounted in the mounting groove by screws. The rear side surface of the cover plate is flush with the rear side surface of the deflection plate 31. The telescopic sleeve 42 and the abutting spring 8 can be inserted into the inside of the fixed sleeve 41 through the rear side of the fixed sleeve 41. The cover plate can be used to fix and abut them, thereby facilitating the installation and disassembly of the internal abutting spring 8 and the telescopic sleeve 42.
[0033] The connecting ring 33 is away from the right side of the door panel 2, and the distance between them is 3-5 cm. The distance between the front side surface of the abutting head 5 and the front side surface of the door panel 2 is 5 cm. When the door panel 2 is closed, the abutting head 5 will abut against the door frame 1 first. At this time, the door panel 2 cannot be completely closed due to the action of the abutting head 5. There is a gap between the door panel 2 and the door frame 1. The gap is greater than the thickness of a person's palm, thereby avoiding the hand clamping phenomenon caused by placing the palm on the inside surface of the door frame 1 when the door panel 2 is closed.
[0034] The front and rear ends of the connecting shaft 7 are integrally formed with fixed heads 71. The fixed heads 71 are square structures. The width of the fixed head 71 is not greater than the outer diameter of the connecting shaft 7. The connecting shaft 7 is directly inserted into the circular hole of the door panel 2, without interference, thereby facilitating the installation and disassembly of the connecting shaft 7.
[0035] The rear side surface of the deflection frame 3 and the front side surface of the inner side frame 6 are recessed to form fixed grooves 34. The fixed heads 71 are inserted into the fixed grooves 34, and they are fixed by screws. The square structure of the fixed groove 34 and the square structure of the fixed head 71 facilitate their insertion and prevent them from sliding after being connected, thereby facilitating the synchronous rotation of the deflection frame 3 and the inner side frame 6.
[0036] An arc-shaped groove is formed in the front side surface of the circular hole. The included angle of the arc-shaped groove is 77 degrees. A limiting block is arranged on the front side of the connecting shaft 7. The maximum deflection angle of the limiting block is 77 degrees. The maximum deflection angle of the entire deflection frame 3 is 77 degrees. When the deflection frame 3 is at the maximum deflection angle, the outer ring surface of the connecting ring 33 contacts the inside surface of the door frame 1. At this time, the door panel 2 can be completely closed. The end of the connecting ring 33 away from the connecting shaft 7 has a larger weight. When the door panel 2 is opened, the end of the connecting ring 33 will automatically deflect downward under the action of gravity, thereby being able to block the next closing.
[0037] The implementation principle of the anti-pinch device for a medical radiation shielding door in this embodiment is as follows: During the process of closing the door panel 2, the door panel 2 rotates, and the abutment joint 5 is horizontally positioned (e.g., ...). Figure 1 , 2 As shown, when the door panel 2 approaches the door frame 1, it cannot be completely closed due to the obstruction of the abutment joint 5 and the telescopic part 4. There will be a certain space between the door panel 2 and the door frame 1, which allows the fingers to be pulled out flexibly, thus avoiding accidental pinching of the fingers.
[0038] When it is necessary to close the door completely, the person needs to turn around and step on the pedal 32 or the inner frame 6. The person needs a certain amount of time to turn around and prepare to step on the pedal. During this time, it is enough for the person with fingers in the door gap to push the door panel 2, and for the person closing the door to react and notice that someone's fingers are in the door gap, thus avoiding injury to the person's fingers.
[0039] By rotating and installing a deflection plate 31 on the lower front side of the door panel 2, the deflection plate 31 is connected to the inner frame 6 through the connecting shaft 7, and the right end of the deflection plate 31 is provided with an abutment 5. When the door panel 2 is closed, the abutment 5 will first abut against the door frame 1. At this time, the door panel 2 cannot be completely closed due to the action of the abutment 5. There is a gap between the door panel 2 and the door frame 1. This gap is greater than the thickness of a person's palm, thereby avoiding the phenomenon of hand pinching caused by the palm being placed on the inner side of the door frame 1 when the door panel 2 is closed.
[0040] By providing a telescopic component 4 on the deflection plate 31, and an abutting spring 8 inside the telescopic component 4, and the abutting spring 8 abutting against the fixing head 71, when the door panel 2 is closed, the abutting head 5 will first contact the door frame 1 and gradually retract inward, which can play a buffering role and prevent the abutting head 5 from impacting the door frame 1 and causing damage when the door panel 2 is closed forcefully.
[0041] The device has a simple overall structure, can be quickly installed and disassembled, and facilitates the replacement of the internal abutment spring 8, thus improving convenience.
[0042] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A medical radiation shielding door anti-pinch device, comprising a door frame (1), wherein a door panel (2) is rotatably mounted on the inner left end of the door frame (1) via a hinge, characterized in that, The door panel (2) has a circular hole extending through the front and back at the end away from the hinge. A connecting shaft (7) is rotatably sleeved inside the circular hole. An inner frame (6) is fixed to the rear end of the connecting shaft (7). The front side of the connecting shaft (7) is placed on the front side of the door panel (2) and a deflection frame (3) is rotatably installed thereon. The deflection frame (3) includes a deflection plate (31), and a foot pedal (32) is integrally formed on the left end of the deflection plate (31). A connecting ring (33) is provided at the end of the deflection plate (31) away from the foot pedal (32). A telescopic member (4) is fixed inside the connecting ring (33). The telescopic member (4) has a hollow design to form an installation cavity. An abutment spring (8) is provided inside the installation cavity. An abutment head (5) is fixed on the front side of the telescopic member (4). The rear end of the abutment head (5) abuts against the abutment spring (8).
2. The anti-pinch device for a medical radiation protection door as described in claim 1, characterized in that, The telescopic component (4) includes a fixed sleeve (41) fixed inside the connecting ring (33), and a telescopic sleeve (42) is slidably sleeved inside the fixed sleeve (41). The abutment (5) is fixed at the front end of the telescopic sleeve (42).
3. The anti-pinch device for a medical radiation protection door as described in claim 2, characterized in that, The inner ring surface of the fixed sleeve (41) is provided with three sets of guide grooves (43) from back to front, and the three sets of guide grooves (43) are arranged in a ring. The front end of the guide groove (43) does not penetrate the front surface of the fixed sleeve (41). The rear end of the outer ring surface of the telescopic sleeve (42) is provided with three guide blocks, and the three guide blocks are slidably placed in the three guide grooves (43).
4. The anti-pinch device for a medical radiation protection door as described in claim 3, characterized in that, The rear side of the connecting ring (33) is cut off to form a mounting groove. A cover plate is installed in the mounting groove by screws, and the rear surface of the cover plate is flush with the rear surface of the deflection plate (31).
5. The anti-pinch device for a medical radiation protection door as described in claim 1, characterized in that, The connecting ring (33) is away from the right side of the door panel (2) and there is a gap of 3-5cm between them. The front surface of the abutment (5) is 5cm away from the front surface of the door panel (2).
6. The anti-pinch device for a medical radiation protection door as described in claim 1, characterized in that, The connecting shaft (7) has a fixed head (71) integrally formed at both the front and rear ends. The fixed head (71) has a square structure and the width of the fixed head (71) is not greater than the outer diameter of the connecting shaft (7).
7. The anti-pinch device for a medical radiation protection door as described in claim 6, characterized in that, The rear surface of the deflection frame (3) and the front surface of the inner frame (6) are both recessed to form a fixing groove (34). The fixing head (71) is inserted into the fixing groove (34) and the two are fixed together by screws.
8. The anti-pinch device for a medical radiation protection door as described in claim 1, characterized in that, An arc-shaped groove is provided on the front surface of the circular hole, the included angle of the arc-shaped groove is 77 degrees, and a limit block is provided on the front side of the connecting shaft (7), the maximum deflection angle of the limit block is 77 degrees.