Magnetic-suction anti-skid and positioning exposure structure of drawer type hand-supporting platform

Abstract

The utility model relates to a drawer type hand support platform magnetic attraction anti-skid and positioning exposure structure, and belongs to the technical field of medical detection machinery, the drawer type hand support platform magnetic attraction anti-skid and positioning exposure structure comprises a protective cover, the protective cover is provided with a detection port, the protective cover is slidably connected with a hand support assembly, and one end of the protective cover is provided with an opening for the hand support assembly to extend out of the protective cover; a contact switch for controlling the X-ray tube to perform exposure action is arranged at one end, far away from the opening, of the protective cover; when positioning of the hand support assembly is completed, the magnetic part and the protective cover attract each other to enable the hand support assembly to be fixed in the protective cover, and meanwhile the hand support assembly is just in contact with the contact switch. The method has the advantages that the stability of the semi-closed X-ray detection instrument is improved, the number of times of invalid exposure is reduced, and the situation that a subject is hurt by extra radiation dosage is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of medical detection machinery, and in particular to a magnetic anti-skid and positioning exposure structure of a drawer-type hand rest platform. Background Art

[0002] A dual-energy X-ray bone densitometer is a measuring instrument used to examine bone quality, wherein a semi-enclosed bone density detector can be used to detect an arm alone, and the monitored person can insert the arm into the semi-enclosed bone density detector for detection. Announcement No.: CN220175093U discloses a drawer-type arm positioning and fixing mechanism, including a sliding mechanism for inserting into the semi-enclosed bone density detector, the sliding mechanism includes a sliding drawer and a guide rail, the guide rail is fixedly connected to the semi-enclosed bone density detector, the sliding drawer is slidably connected to the guide rail, and a positioning member for locating the arm position and a binding member for fixing the arm are provided on the inner wall of the sliding drawer. The drawer-type arm positioning and fixing mechanism can be bound to the part to be detected outside the semi-enclosed bone density detector, and the part to be detected is positioned, and then it can be synchronously slid into the position set inside the semi-enclosed bone density detector with the part to be detected, so that the part to be detected can be more accurately positioned, which can improve the accuracy of the detection.

[0003] However, in actual use, when the arm is positioned on the sliding drawer, the arm and the sliding drawer are inserted into the detector and positioned, the X-ray tube can perform exposure. However, during the exposure process, the arm of the examinee can easily drive the sliding drawer to move, causing the sliding drawer to be offset, resulting in incorrect inspection position, invalid inspection, and invalid exposure of the X-ray tube. It is necessary to adjust the position of the sliding drawer and the arm before re-exposure inspection. Not only is the inspection stability poor, but repeated re-inspection will cause additional radiation dose damage to the examinee. Utility Model Content

[0004] In order to improve the stability of semi-enclosed X-ray detection equipment, reduce the number of invalid exposures, and reduce the risk of subjects being harmed by additional radiation doses, the present application provides a drawer-type hand rest platform with a magnetic anti-slip and positioning exposure structure.

[0005] The present application provides a drawer-type hand rest platform magnetic anti-skid and positioning exposure structure adopts the following technical solutions:

[0006] A drawer-type hand-support platform magnetic anti-skid and positioning exposure structure, comprising a protective cover, the protective cover is provided with a detection port, the protective cover is slidably connected with a hand-support assembly, one end of the protective cover is provided with an opening for the hand-support assembly to extend out of the protective cover, the end of the hand-support assembly away from the opening is provided with a magnetic piece, and the end of the protective cover away from the opening is provided with a contact switch for controlling an X-ray tube to perform an exposure action;

[0007] When the hand rest assembly is positioned, the magnetic member and the protective cover attract each other to fix the hand rest assembly in the protective cover, and at the same time, the hand rest assembly just contacts with the contact switch.

[0008] By adopting the above technical solution, the arm is placed on the hand support assembly, and the relative position of the arm and the hand support assembly is adjusted so that when the hand support assembly is fully extended into the protective cover, the detection port is facing the arm, and the rear arm is fixed on the hand support assembly. Then the arm drives the hand support assembly to extend into the protective cover together. When the hand support assembly is fully extended into the protective cover, under the action of the magnetic part, the end of the hand support assembly and the end of the protective cover away from the opening are mutually adsorbed, and the hand support assembly just contacts the contact switch to make the X-ray tube perform exposure action. Under the action of the magnetic part, during the detection process, when the arm of the tester wants to drive the hand support assembly to move, the magnetic part provides a starting resistance to limit the movement of the hand support assembly, so that the detection can be completed smoothly, greatly improve the stability of the detection, reduce the occurrence of invalid exposure, and reduce the situation of the subject being harmed by additional radiation dose. Even if the tester forcibly pulls the hand support assembly to move with his arm under various circumstances during the detection process, the hand support assembly will separate from the contact switch to stop the exposure action of the X-ray tube, thereby further reducing the number and time of invalid exposure and reducing the situation of the subject being harmed by additional radiation dose.

[0009] Optionally, the hand rest assembly includes a hand rest platform, which is slidably connected to the protective cover, and the hand rest platform is provided with a movable opening for the arm to pass through, and an arm limit block and a finger limit block are arranged on the hand rest platform, and the arm limit block is closer to the interactive opening than the finger limit block, and the magnetic part is arranged on the end of the supported platform away from the opening.

[0010] By adopting the above technical solution, the arm is extended into the hand support platform through the movable opening, the arm limit block can reduce the shaking of the arm on the hand support platform, and the finger limit block can limit the movement of the palm to drive the movement of the arm, thereby improving the stability of the detection.

[0011] Optionally, a mounting groove is provided at the bottom of the hand support platform, and the mounting groove is arranged at an end of the hand support platform away from the opening, and the magnetic member is installed in the mounting groove.

[0012] By adopting the above technical solution, the magnetic part can be embedded in the installation groove, so that the end surface of the hand support platform can fit with the end surface of the protective cover, thereby further reducing the shaking of the hand support platform after it is extended into the protective cover.

[0013] Optionally, the palm rest platform is provided with a palm support block.

[0014] By adopting the above technical solution, the palm support block cooperates with the finger limit block and the arm limit block, and multi-point positioning can further reduce the movement of the arm on the palm rest platform, and the palm support block can support the palm, so that the palm is in a naturally arched state, thereby improving the comfort during the detection process and further reducing the movement of the tester's arm.

[0015] Optionally, sliding plates are provided on both sides of the hand support platform, sliding rails are installed on both sides of the protective cover, and the sliding plates are slidably arranged in the sliding rails.

[0016] By adopting the above technical solution, the sliding plate moves along the sliding rail to achieve the sliding connection between the hand support platform and the protective cover.

[0017] Optionally, the magnetic member is a magnet block, at least two magnet blocks are provided, the number of the mounting slots is the same as the number of the magnet blocks, and the magnet blocks correspond to the mounting slots one by one and are installed in the mounting slots.

[0018] By adopting the above technical solution, multiple magnet blocks can provide greater adsorption force, so that a greater starting resistance is required when the hand support platform is separated from the protective cover, which can further limit the movement of the hand support platform during the detection process and improve the stability of the detection.

[0019] Optionally, it also includes a detector upper plate, the protective cover is supported on the detector upper plate, the contact switch is a micro switch, the micro switch is installed at one end of the detector upper plate away from the opening, the protective cover is provided with a movable hole, and the contact of the micro switch extends into the protective cover.

[0020] By adopting the above technical solution, as the hand support platform approaches the end of the protective cover away from the opening, the hand support platform gradually contacts the micro switch. When the end of the hand support platform is in contact with the end of the protective cover away from the opening, the micro switch just starts the X-ray tube for exposure.

[0021] Optionally, at least one group of the arm limit blocks is provided, and each group has two arm limit blocks. The arm limit blocks in the same group are arranged opposite to each other, and the opposite surfaces of the two arm limit blocks are arranged as arc-shaped surfaces.

[0022] By adopting the above technical solution, the design of the curved surface enables the arm to better fit with the arm limit block, thereby improving the comfort of detection.

[0023] Optionally, at least one group of finger limit blocks is provided, each group has two finger limit blocks, the finger limit blocks in the same group are arranged opposite to each other, and the opposite sides of the two finger limit blocks are arranged as arc-shaped surfaces, and the palm support block is located between each group of finger limit blocks.

[0024] Optionally, the finger limit block, the arm limit block and the palm support block are integrally formed with the hand rest platform, and the finger limit block, the arm limit block and the palm support block are all hollow structures, the interiors of the finger limit block, the arm limit block and the palm support block are connected with the bottom of the hand rest platform, and a reinforcement frame is provided at the bottom of the hand rest platform, which is opposite to the finger limit block, the arm limit block and the palm support block.

[0025] By adopting the above technical scheme, the design of the hollow structure of the finger limit block, the arm limit block and the palm support block can reduce the mass of the hand rest platform. Even if a reinforcement frame is set for reinforcement, the overall mass of the hand rest platform will still be smaller than the mass of the hand rest platform with solid design of finger limit blocks, arm limit blocks and palm support blocks. Therefore, the hand rest platform is easier to be fixed in the protective cover under the action of magnetic parts. At the same time, the reinforcement frame can increase the resistance of the hand rest platform to deformation, thereby reducing the situation where the finger limit block and the arm limit block are subjected to torque when the hand moves to one side, resulting in tearing of the connection between the bottom plate of the hand rest platform and the finger limit block and the arm limit block.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. Under the action of the magnetic component, when the examiner's arm wants to move the hand support assembly during the test, the magnetic component provides a starting resistance to limit the movement of the hand support assembly, so that the test can be completed smoothly, greatly improving the stability of the test, reducing the occurrence of invalid exposure, and reducing the damage to the examinee by additional radiation dose. Even if the examiner forcibly pulls the hand support assembly with his arm under various circumstances during the test, the hand support assembly will separate from the contact switch to stop the exposure action of the X-ray tube, thereby further reducing the number and time of invalid exposure and reducing the damage to the examinee by additional radiation dose;

[0028] 2. The hand support platform with hollow finger limit blocks, arm limit blocks and palm support blocks has a small mass, so that the hand support platform is easier to fix in the protective cover under the action of magnetic parts. At the same time, the reinforcement frame can increase the deformation resistance of the hand support plate, and reduce the situation where the finger limit blocks and arm limit blocks are subjected to torque when the hand moves to one side, resulting in tearing of the connection between the hand support bottom plate and the finger limit blocks and arm limit blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a structural schematic diagram of an embodiment of the present application for illustrating the pulled-out state of the hand rest platform.

[0031] Figure 3 It is a schematic diagram of the structure of the protective cover used in the embodiment of the present application.

[0032] Figure 4 It is a schematic diagram of the structure of an arm limit block, a palm support block and a finger limit block according to an embodiment of the present application.

[0033] Figure 5 It is a schematic diagram of the structure of the reinforcement frame, the installation slot and the magnetic part used in the embodiment of the present application.

[0034] Explanation of the accompanying drawings: 1. Detector upper plate; 2. Protective cover; 21. Detection port; 22. Opening; 23. Movable hole; 24. Slide rail; 3. Hand rest assembly; 31. Hand rest platform; 311. Movable port; 312. Mounting slot; 32. Sliding plate; 33. Arm limit block; 34. Finger limit block; 35. Palm support block; 4. Contact switch; 41. Micro switch; 5. Magnetic part; 51. Magnet block; 6. Reinforcement frame. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-5 This application is described in further detail.

[0036] The embodiment of the present application discloses a magnetic anti-skid and positioning exposure structure of a drawer-type palm rest platform.

[0037] like Figure 1 , Figure 2 and Figure 3 The drawer-type hand rest platform magnetic anti-skid and positioning exposure structure includes a detector upper plate 1, a protective cover 2 and a hand rest assembly 3. The detector upper plate 1 is installed in the bone density detector, and the protective cover 2 is installed on the detector upper plate 1. A detection port 21 is provided on the top surface of the protective cover 2, an opening 22 is provided at one end of the protective cover 2, and a movable hole 23 is provided at the end of the protective cover 2 away from the opening 22. A contact switch 4 is installed on the detector upper plate 1. In the embodiment of the present application, the contact switch 4 is a micro switch 41. The contact of the micro switch 41 extends into the protective cover 2 through the movable hole 23. When the contact of the micro switch 41 is flush with the inner wall of the end face of the protective cover 2, the micro switch 41 just drives the X-ray tube to start. In other embodiments, the contact switch 4 can also be a photoelectric switch or a proximity switch facing the detection port 21, as well as a button switch with a contact extending into the detection port 21.

[0038] like Figure 3 , Figure 4 and Figure 5 The hand support assembly 3 is slidably connected in the protective cover 2. The hand support assembly 3 includes a hand support platform 31. The hand support platform 31 is provided with a sliding plate 32. The two inner side walls of the protective cover 2 are both equipped with slide rails 24. The sliding plate 32 is slidably inserted into the slide rails 24 on the same side thereof, thereby realizing the sliding connection between the hand support platform 31 and the protective cover 2. An end of the end plate of the hand support platform 31 away from the protective cover 2 is provided with a movable opening 311 for the arm to pass through.

[0039] Two arm limit blocks 33 and two finger limit blocks 34 are integrally formed on the hand support platform 31. The two arm limit blocks 33 are arranged at one end of the hand support platform 31 where a movable opening 311 is provided. The two arm limit blocks 33 are arranged opposite to each other, and the opposite sides of the two arm limit blocks 33 are designed to be arc-shaped surfaces. The side of the arm limit block 33 that is away from its arc-shaped side is connected to one side of the hand support platform 31, and the bottom of the arm limit block 33 is connected to the bottom plate of the hand support platform 31. The arm limit block 33 is designed to be a hollow structure, and the arm limit block 33 is connected to the bottom surface of the hand support platform 31. In other embodiments, the number of the arm limit blocks 33 can also be three, four, etc., and the arm limit blocks 33 can be arranged in two rows and staggered.

[0040] The two finger limit blocks 34 are arranged opposite to each other, and the opposite sides of the two finger limit blocks 34 are designed as arc-shaped surfaces, the bottom of the finger limit blocks 34 is connected to the bottom plate of the hand support platform 31, the finger limit blocks 34 are designed as hollow structures, and the finger limit blocks 34 are connected to the bottom surface of the hand support platform 31, and the two finger limit blocks 34 and the two arm limit blocks 33 are symmetrically arranged about the midline of the length direction of the hand support platform 31. Compared with the arm limit blocks 33, the finger limit blocks 34 are farther away from the movable opening 311.

[0041] A palm support block 35 is also integrally formed on the hand support platform 31. The palm support block 35 is located between the two finger limit blocks 34. The palm support block 35 is a raised block. The palm support block 35 is also a hollow structure. The palm support block 35 is connected to the bottom surface of the hand support platform 31. The part of the hand support platform 31 between the palm support block 35 and the arm limit block 33 is a detection area. During the detection process, the detection area is directly opposite to the detection port 21.

[0042] The bottom wall of the hand support platform 31 is provided with a mounting groove 312, and there are two mounting grooves 312. The mounting groove 312 is located at one end of the hand support platform 31 away from the movable opening 311, and the two mounting grooves 312 are respectively located on both sides of the hand support platform 31. A magnetic member 5 is installed in each mounting groove 312. In the embodiment of the present application, the magnetic member 5 is a magnet block 51, and the protective cover 2 is made of iron. In other embodiments, the protective cover 2 can only be designed with an end plate at one end away from the opening 22 as an iron product, or the protective cover 2 can be made of other materials, but the end of the protective cover 2 away from its opening 22 can be installed with a magnetic metal block that is attracted to the magnet block 51. In other embodiments, the magnetic member 5 can also be an electromagnet and a magnetic core.

[0043] A reinforcing frame 6 is installed at the bottom of the hand support platform 31 , and the reinforcing frame 6 is directly opposite to the mounting groove 312 , the finger limiting block 34 , the palm supporting block 35 and the arm limiting block 33 .

[0044] When performing arm bone density testing, the lower arm is placed on the hand support platform 31, and the two arm limit blocks 33 limit the end of the lower arm close to the upper arm. The palm is naturally placed on the palm support block 35, and the fingers are located between the two palm limit blocks, so that the lower arm is positioned on the hand support platform 31;

[0045] Then, a strap may be provided on the hand support platform 31 to fix the lower arm, or only the palm support block 35 may be used to support the outer periphery of the palm to limit the lower arm from moving along the length direction of the hand support platform 31;

[0046] Then the lower arm drives the hand support platform 31 to extend into the protective cover 2. When the hand support assembly 3 is fully extended into the protective cover 2 and the detection port 21 is facing the detection area of ​​the hand support assembly 3, under the action of the magnet block 51, the end of the hand support assembly 3 and the end of the protective cover 2 away from the opening 22 are attracted to each other, and the hand support platform 31 just contacts the micro switch 41 to make the X-ray tube perform exposure. Under the action of the magnet block 51, when the lower arm of the examinee wants to drive the hand support assembly 3 to move during the detection process, the magnet block 51 provides a starting resistance to limit the movement of the hand support platform 31, so that the detection can be completed smoothly, greatly improving the stability of the detection, reducing the occurrence of invalid exposure, and reducing the damage to the examinee by additional radiation dose.

[0047] Even if during the test, the testee is nervous or other reasons that cause him to forcibly pull the hand support platform 31 with his lower arm to move, the hand support platform 31 will separate from the micro switch 41 to stop the exposure of the X-ray tube immediately, thereby further reducing the number and time of invalid exposures and reducing the possibility of the testee being harmed by additional radiation doses.

[0048] The hollow structure design of the finger limit block 34, the arm limit block 33 and the palm support block 35 can reduce the mass of the hand support platform 31. Even if a reinforcing frame 6 is provided for reinforcement, the mass of the overall hand support platform 31 will still be smaller than the mass of the hand support platform 31 with solid designs of the finger limit blocks 34, the arm limit blocks 33 and the palm support blocks 35. Thus, the hand support platform 31 can be more easily fixed in the protective cover 2 under the action of the magnetic part 5. At the same time, the reinforcing frame 6 can increase the deformation resistance of the hand support platform 31, thereby reducing the situation in which the finger limit blocks 34 and the arm limit blocks 33 are subjected to torque when the hand moves to one side, resulting in tearing of the connection between the bottom plate of the hand support platform 31 and the finger limit blocks 34 and the arm limit blocks 33.

[0049] The implementation principle of the embodiment of the present application is as follows: when the hand support platform 31 is pushed to the detection position, the magnet block 51 will adsorb the hand support platform 31 on the end plate of the protective cover 2, so that there will be a starting resistance when the hand support platform 31 leaves the detection position, so that the hand support platform 31 is not easy to slide freely at the detection position, which greatly improves the stability of the detection, and even if the hand support platform 31 slides during the detection, the contact position of the micro switch 41 changes, and the X-ray tube can immediately stop the exposure action, which increases the stability and service life of the equipment and reduces the radiation dose absorption of medical staff and the examined persons.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drawer-type hand rest platform magnetic anti-skid and positioning exposure structure, characterized in that: The protective cover (2) comprises a protective cover (2), wherein the protective cover (2) is provided with a detection port (21), the protective cover (2) is slidably connected to a hand support assembly (3), one end of the protective cover (2) is provided with an opening (22) for the hand support assembly (3) to extend out of the protective cover (2), a magnetic member (5) is provided at one end of the hand support assembly (3) away from the opening (22), and a contact switch (4) for controlling an X-ray tube to perform an exposure action is provided at one end of the protective cover (2) away from the opening (22); When the hand rest assembly (3) is positioned, the magnetic member (5) and the protective cover (2) attract each other so that the hand rest assembly (3) is fixed in the protective cover (2), and at the same time, the hand rest assembly (3) is in contact with the contact switch (4).

2. The drawer-type hand rest platform magnetic anti-skid and positioning exposure structure according to claim 1, characterized in that: The hand support assembly (3) comprises a hand support platform (31), the hand support platform (31) is slidably connected to the protective cover (2), the hand support platform (31) is provided with a movable opening (311) for the arm to pass through, the hand support platform (31) is provided with an arm limit block (33) and a finger limit block (34), the arm limit block (33) is closer to the movable opening (311) than the finger limit block (34), and the magnetic member (5) is arranged at one end of the hand support platform (31) away from the opening (22).

3. The drawer-type hand support platform magnetic anti-skid and positioning exposure structure according to claim 2 is characterized by: A mounting groove (312) is provided at the bottom of the hand support platform (31), and the mounting groove (312) is arranged at an end of the hand support platform (31) away from the opening (22), and the magnetic component (5) is installed in the mounting groove (312).

4. The drawer-type hand rest platform magnetic anti-skid and positioning exposure structure according to claim 2, characterized in that: The hand support platform (31) is provided with a palm support block (35).

5. The drawer-type hand rest platform magnetic anti-skid and positioning exposure structure according to any one of claims 2 to 4, characterized in that: Sliding plates (32) are provided on both sides of the hand support platform (31), and sliding rails (24) are installed on both sides of the protective cover (2), and the sliding plates (32) are slidably arranged in the sliding rails (24).

6. The drawer-type hand rest platform magnetic anti-skid and positioning exposure structure according to claim 3, characterized in that: The magnetic component (5) is a magnet block (51), at least two of the magnet blocks (51) are provided, the number of the mounting slots (312) is the same as the number of the magnet blocks (51), and the magnet blocks (51) correspond to the mounting slots (312) one by one and are installed in the mounting slots (312).

7. The drawer-type hand rest platform magnetic anti-skid and positioning exposure structure according to any one of claims 2-3, characterized in that: The device also comprises a detector upper plate (1), the protective cover (2) being supported on the detector upper plate (1), the contact switch (4) being a micro switch (41), the micro switch (41) being mounted on an end of the detector upper plate (1) away from the opening (22), the protective cover (2) being provided with a movable hole (23), and the contact of the micro switch (41) extending into the protective cover (2).

8. The drawer-type hand rest platform magnetic anti-skid and positioning exposure structure according to any one of claims 2 to 4, characterized in that: At least one group of the arm limit blocks (33) is provided, and each group of the arm limit blocks (33) has two arm limit blocks (33). The arm limit blocks (33) in the same group are arranged opposite to each other, and the opposite sides of the two arm limit blocks (33) are arranged as arc-shaped surfaces.

9. The drawer-type hand rest platform magnetic anti-skid and positioning exposure structure according to claim 4, characterized in that: At least one group of finger limit blocks (34) is provided, and each group of the finger limit blocks (34) has two finger limit blocks (34). The finger limit blocks (34) in the same group are arranged opposite to each other, and the opposite sides of the two finger limit blocks (34) are arranged as arc-shaped surfaces. The palm support block (35) is located between each group of the finger limit blocks (34).

10. The drawer-type hand rest platform magnetic anti-skid and positioning exposure structure according to claim 4, characterized in that: The finger limit block (34), the arm limit block (33) and the palm support block (35) are integrally formed with the hand support platform (31), and the finger limit block (34), the arm limit block (33) and the palm support block (35) are all hollow structures, and the interiors of the finger limit block (34), the arm limit block (33) and the palm support block (35) are connected to the bottom of the hand support platform (31), and a reinforcement frame (6) is provided at the bottom of the hand support platform (31), and the reinforcement frame (6) is directly opposite to the finger limit block (34), the arm limit block (33) and the palm support block (35).

Images