Protective medical leakage current tester

Abstract

The invention relates to the technical field of leakage current testers, and particularly discloses a protective medical leakage current tester which comprises a C-shaped movable supporting frame, a supporting connecting rod is installed on the surface of the lower end of the movable supporting frame in a penetrating mode, and a bearing sliding plate is fixedly connected to the upper surface of the supporting connecting rod. And the upper surface of the bearing sliding plate is fixedly connected with a case body. The protective medical leakage current tester is provided with a bearing sliding plate and a positioning sliding rod, when the tester works, the case body is installed through the bearing sliding plate, and when the tester is moved, bumping drives a supporting connecting rod and the bearing sliding plate to slide, so that a spring on the lower surface of the bearing sliding plate is convenient to buffer; and a positioning sliding rod is fixedly connected with a lower protection box, and then the positioning sliding rod is arranged on the surface of a guide sliding block, so that the tester body can be conveniently supported and mounted, and the mounting convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of leakage current testers, in particular to a protective medical leakage current tester. Background Art

[0002] Medical equipment is the basic condition for continuously improving the level of medical science and technology, and is also an important symbol of the degree of modernization. Medical equipment has become an important field of modern medicine. The development of medicine depends to a large extent on the development of instruments. Medical leakage current tester is an instrument used to detect the electrical safety performance of medical equipment. It is mainly used to measure the leakage current of medical electrical equipment in normal and fault conditions to ensure that the equipment will not cause electric shock hazards to patients and operators during use.

[0003] The working principle of the medical leakage current tester is to simulate human body impedance: through the built-in simulated human body impedance circuit, simulate the impedance value of the human body in different situations, usually composed of an adjustable resistor and a fixed capacitor to meet the human body impedance model specified by international standards, apply test voltage: apply a certain test voltage between the power cord and the ground wire of the equipment to simulate the electrical environment of the equipment in actual use, measure leakage current: measure the leakage current flowing through the equipment through the simulated human body impedance circuit, and judge whether the leakage current of the equipment meets the safety requirements according to the measured leakage current value. The test types include ground leakage current test: measure the leakage current flowing through the grounding wire of the equipment to evaluate the effectiveness of the equipment grounding system, casing leakage current test: detect the leakage current on the equipment casing or accessible parts to ensure the safety of the operator when touching the equipment, patient leakage current test: for medical electrical equipment that is in direct contact with the patient, measure the leakage current flowing from the equipment to the patient's body to ensure the safety of the patient during treatment, and patient auxiliary current test: measure the leakage current between the auxiliary equipment and the patient under specific conditions to ensure that the auxiliary equipment does not cause additional safety risks to the patient.

[0004] Common measurement ranges range from a few microamperes to tens of milliamperes, such as 5μA-50mA, to meet the testing needs of different types of electrical equipment. Generally, the DC measurement accuracy can reach ±(0.2% reading + 3 digits), and the AC measurement accuracy is ±(2.0% reading + 6 digits), etc. Test voltage: different test voltages can be provided, usually continuously adjustable between 100V-450V, such as 100V-250V or 200V-450V1. Frequency response: It can accurately measure leakage current at different frequencies, and the general frequency range is 0.1Hz-1MHz.

[0005] The test circuit in the medical leakage current tester is the core part of the tester. According to the requirements of the measuring device, the medical electrical equipment under test is connected to the test system to simulate the current path of the human body when it touches the equipment, ensuring that the leakage current of the equipment can be accurately measured.

[0006] Existing medical leakage current testers, such as the one disclosed in publication number "CN218331909U", "press the upper protective shell downward by the handle...to avoid damage caused by bumps", but in actual use, the upper protective shell is pushed by the spring when unlocking. Since there is no braking buffer structure, the impact force generated by the spring is transmitted to the tester body, causing the tester to be easily damaged by vibration, reducing the overall practicality. Summary of the invention

[0007] The purpose of the present invention is to provide a protective medical leakage current tester to solve the problem proposed in the above-mentioned background technology that the upper protective shell is pushed by the spring when unlocking, and due to the lack of a braking buffer structure, the impact force generated by the spring is transmitted to the tester body, causing the tester to be easily damaged by vibration, thereby reducing the overall practicality.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a protective medical leakage current tester, comprising a movable support frame, which is a C-shaped design, a support connecting rod is installed through the lower end surface of the movable support frame, the upper surface of the support connecting rod is fixedly connected to a supporting slide, the upper surface of the supporting slide is fixedly connected to a chassis body, an upper limit baffle is fixedly connected to the upper end of the movable support frame, a slide groove is provided on the inner wall of the upper limit baffle, and a guide slider is installed on the inner wall of the upper limit baffle slide groove, a positioning slide rod is installed through the surface of the guide slider, a first magnet is fixedly connected to the side surface of the positioning slide rod, and a linkage buffer mechanism is arranged inside the guide slider, which is provided with a first magnet through the installation groove. The two magnets and the linked piston column inflate the auxiliary buffer airbag through the connected air guide groove, one end of the positioning slide rod is fixedly connected to the lower protective box, the upper surface of the lower protective box is fixedly connected to the guide slide rod, the outer surface of the guide slide rod is installed with the upper protective box, the surface of the lower protective box is provided with a groove, and the inner wall of the groove of the lower protective box is fixedly installed with the tester body, the lower surface of the upper protective box is provided with a groove, and the inner wall of the groove of the upper protective box is provided with a positioning block, the side surface of the lower protective box is embedded with an unlocking push block, the upper end outer surface of the guide slide rod is provided with a limited groove, the inner wall of the limited groove is installed with an inner support slider, and the side surface of the inner support slider is embedded with a guide roller.

[0009] Preferably, a roller is provided on the outer surface of the lower end of the movable support frame, an armrest is provided on the outer surface of the upper end of the movable support frame, the movable support frame is slidably connected with the support connecting rod, and a limiting ball is fixed on the lower end of the support connecting rod.

[0010] By adopting the above technical solution, a group of rollers are installed on the outer surface of the lower end of the mobile support frame. These rollers are made of high-strength and wear-resistant materials and can roll flexibly on various surfaces. The handrails of the mobile support frame are made of soft and non-slip rubber, so that the user can get a comfortable grip when pushing the mobile support frame, while avoiding operational errors due to hand slippage. The sliding connection between the mobile support frame and the support connecting rod allows the support connecting rod to slide up and down on the mobile support frame. The lower end of the support connecting rod is limited by a limiting ball to prevent it from moving at will, thereby providing reliable support stability for the entire device.

[0011] Preferably, a spring is connected between the lower surface of the supporting slide and the outer surface of the movable support frame, a power supply is fixedly connected to the rear surface of the chassis body, and a power supply wiring slot is provided on the surface of the movable support frame.

[0012] By adopting the above technical solution, the lower surface of the supporting slide and the outer surface of the mobile support frame are elastically connected by springs. The springs can effectively buffer the external force impact on the supporting slide. Whether it is a slight vibration or a large shaking, it can be cleverly resolved by the springs, ensuring that the items placed on the supporting slide are always in a relatively stable state, avoiding damage or displacement of the items due to vibration or shaking. The chassis body is the core component carrier of the equipment, and the power supply fixedly connected to its rear surface provides an indispensable power source for the operation of the entire equipment. The power wiring slots on the surface of the mobile support frame ensure the convenience of power wiring without affecting the overall structural strength of the mobile support frame. The power wiring can be neatly and orderly connected to each electrical component through the slots, avoiding the messy entanglement of the lines.

[0013] Preferably, the upper limit baffle is designed as a square ring, the upper limit baffle is slidably connected to the guide slider, and a spring is connected between the guide slider and the upper limit baffle.

[0014] By adopting the above technical scheme, the square ring design of the upper limit baffle and the square ring structure can comprehensively and effectively play a role in limiting and protecting the key components or items above the equipment, preventing them from being displaced or falling off during the operation of the equipment, thereby ensuring the normal operation of the equipment. Through the sliding connection between the upper limit baffle and the guide slider, the surface of the guide slider is polished with high precision, so that the sliding cooperation between it and the upper limit baffle is extremely smooth and has good stability, and can accurately guide the upper limit baffle to slide along a predetermined trajectory. A spring is connected between the guide slider and the upper limit baffle, which can provide a buffering force for the upper limit baffle when the equipment is running. When the equipment is affected by external vibrations or other external forces, the spring can quickly absorb and disperse the impact force, so that the upper limit baffle can remain stable while being able to flexibly adapt to different working conditions, further improving the reliability and stability of the equipment.

[0015] Preferably, the guide slider is slidably connected to the positioning slide bar, and the vertical cross-section of the positioning slide bar is T-shaped, a spring is connected between the guide slider and the positioning slide bar, and the first magnet is bar-shaped.

[0016] By adopting the above technical scheme, a spring is connected between the guide slider and the positioning slider, one end of the spring is tightly fixed in a specific slot of the guide slider, and the other end is firmly connected to the corresponding mounting point on the positioning slider. When the equipment is running, the spring can play a dual role of buffering and resetting in real time, and when the guide slider is pushed by an external force to slide along the positioning slider, the spring will produce corresponding deformation according to the magnitude and direction of the force, absorb and store part of the energy, and when the external force disappears, the spring can quickly release the stored energy and accurately reset the guide slider to the initial or preset position, thereby ensuring that all components of the equipment are always in a precise working state. The strip design of the first magnet makes its magnetic field distribution more uniform and directional. The first magnet uses the attraction or repulsion of magnetic force to accurately position and fine-tune related components, greatly improving the working accuracy and stability of the equipment.

[0017] Preferably, the linkage buffer mechanism includes an installation groove, which is opened on the inner wall of the guide slider, and the inner wall of the installation groove is connected to a linkage piston column, and the end of the linkage piston column facing the positioning slide rod is fixedly connected to a second magnet, and a connecting air guide groove is opened inside the guide slider, and an auxiliary buffer air bag is fixedly connected to the surface of the guide slider.

[0018] By adopting the above-mentioned technical scheme, the installation groove of the linkage buffer mechanism is used to facilitate the arrangement of the linkage piston column in the installation groove, and then the second magnet is fixedly connected to one end of the linkage piston column, and the installation groove and the cavity of the auxiliary buffer airbag are connected through the connecting air guide groove. Then, the air is filled into the auxiliary buffer airbag through the flow of air, which facilitates the expansion of the auxiliary buffer airbag and thus fits the buffer.

[0019] Preferably, the installation groove and the linkage piston column form a sliding connection, a spring is connected between one end of the linkage piston column and the installation groove, and the second magnet has the same magnetic pole as the end facing the first magnet.

[0020] By adopting the above technical solution, the installation groove and the linkage piston column are slidingly connected, and a spring is connected between one end of the linkage piston column and the installation groove. The spring provides buffering and reset force for the linkage piston column. When the linkage piston column slides in the installation groove under the action of external force, the spring will undergo corresponding elastic deformation, absorb and store energy, and effectively slow down the movement speed of the piston column to avoid damage to the equipment due to excessive impact force. When the external force disappears, the spring quickly releases the stored energy and smoothly pushes the linkage piston column back to the initial or preset position to ensure the normal working order of all components of the equipment.

[0021] Preferably, one end of the communicating air guide groove is communicated with the mounting groove, and the other end of the communicating air guide groove is communicated with the cavity of the auxiliary buffer airbag.

[0022] By adopting the above technical solution, during the operation of the equipment, the first strip-shaped first magnet is used to cause the first magnet to repel the second magnet, and then the movement of the second magnet drives the linked piston column to move. One end of the linked piston column pushes the air into the connecting air guide groove, and the connecting air guide groove guides the air to the cavity of the auxiliary buffer airbag at the other end. Then, the expansion of the auxiliary buffer airbag will fit and buffer the lower protective box, thereby increasing the protective effect of the lower protective box and preventing the lower protective box from collision damage.

[0023] Preferably, the positioning block is slidably connected to the upper protective box, and a spring is connected between the positioning block and the upper protective box. The lower end of the positioning block is hook-shaped, and the positioning block is snap-fitted to the lower protective box.

[0024] By adopting the above technical scheme, the sliding connection structure between the positioning card block and the upper protective box makes the upper protective box provide solidity for the smooth sliding of the positioning card block. The side of the positioning card block fits tightly with the track of the upper protective box, effectively avoiding loosening, shaking or jamming that may occur during the sliding process, so that the positioning card block can move stably and accurately on the predetermined track. When the positioning card block slides downward to a specific position under the action of the spring, the hook-shaped part at its lower end can be accurately embedded in the slot of the lower protective box to form a firm locking state. This locking connection method has extremely high reliability and stability, and can effectively prevent the upper and lower protective boxes from relative displacement or separation during the operation of the equipment, providing all-round protection for the key components inside the equipment.

[0025] Preferably, the unlocking push block is slidably connected to the lower protective box, and a spring is connected between the unlocking push block and the lower protective box, the upper end of the guide slide rod passes through the limiting groove on the lower surface of the upper protective box, and a spring is connected between the lower protective box and the upper protective box.

[0026] The above technical scheme is adopted, track structures compatible with the lower protective box are provided on both sides of the unlocking push block, so that the unlocking push block can slide smoothly in a straight line in the lower protective box, and a spring is connected between the unlocking push block and the lower protective box, one end of which is firmly connected to the specific connection point of the unlocking push block, and the other end is firmly fixed to the corresponding position of the lower protective box, providing a certain elastic reset force for the unlocking push block, and the upper end of the guide slide bar accurately passes through the limiting groove on the lower surface of the upper protective box, and the width of the limiting groove matches the width of the guide slide bar, which can not only ensure that the guide slide bar can move smoothly in the groove, but also play a good limiting role. A spring is also connected between the lower protective box and the upper protective box, and its two ends are respectively firmly fixed at the specific connection parts of the lower protective box and the upper protective box, which are used to maintain the relative position relationship between the upper and lower protective boxes and provide a certain buffering force.

[0027] Preferably, the inner wall of the limiting groove is designed to be inclined, the side surface of the inner support slider is designed to be inclined, the inner support slider is slidably connected to the guide slide rod, and a spring is connected between the inner support slider and the guide slide rod, the inner support slider is rotationally connected to the guide roller, and the guide rollers are evenly arranged on the inclined surface of the inner support slider.

[0028] By adopting the above technical scheme, the inner support slider and the guide slide rod form a sliding connection, and a sliding rod matching the outer diameter of the guide slide rod is provided at the center of the inner support slider, and a spring is connected between the inner support slider and the guide slide rod, and one end of the spring is fixed at the bottom center position of the inner support slider, and the other end is fixed at a specific position of the guide slide rod, providing continuous buffering and elastic support for the inner support slider, ensuring that the inner support slider slides on the guide slide rod smoothly and flexibly, and the inner support slider and the guide roller form a rotational connection, and the inclined surface of the inner support slider is evenly distributed with a plurality of roller mounting shaft holes, and the guide rollers are mounted on these shaft holes through bearings, and the guide rollers are evenly arranged on the inclined surface of the inner support slider, so that the guide rollers can rotate freely when contacting the surfaces of other components, which greatly reduces friction, while also ensuring the stability and accuracy of the inner support slider during the tilting movement.

[0029] Compared with the prior art, the invention has the following beneficial effects: the protective medical leakage current tester:

[0030] 1. A supporting slide plate and a positioning slide bar are provided, so that when the device is working, the chassis body is installed through the supporting slide plate. When the device is moved, the bumps will drive the supporting link and the supporting slide plate to slide, so that the spring on the lower surface of the supporting slide plate can be used for buffering, which is beneficial for buffering and protecting the chassis body, increasing the practicality of the device. The lower protection box is fixedly connected by the positioning slide bar, and then the positioning slide bar is set on the surface of the guide slide bar, which is convenient for supporting and installing the tester body, increasing the convenience of installation;

[0031] 2. A connecting air guide groove and an auxiliary buffer air bag are provided, so that when the device is working, the first magnet on the surface of the positioning slide bar moves through the sliding of the positioning slide bar, so that the strip-shaped first magnet repels the second magnet. After the second magnet is repelled, it will drive the linkage piston column to slide, and then the linkage piston column pushes the cavity on one side into the connecting air guide groove. Finally, the connecting air guide groove guides air into the cavity of the auxiliary buffer air bag, so that the auxiliary buffer air bag expands and fits the surface of the lower protective box, reducing the impact force on the lower protective box and increasing the practicality of the device;

[0032] 3. A limit slot and an inner support slider are set so that when the device is working, the limit slot is convenient for receiving the guide slide bar, and the positioning block is driven to move by pushing the unlocking push block to unlock the lower protection box and the upper protection box. Then the spring pushes the upper protection box to rise. At this time, the inner support slider is against the limit slot, thereby performing friction braking. At the same time, the guide roller will reduce wear, thereby improving the practicability of the device and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of a three-dimensional structure of a mobile support frame and a support connecting rod connected to each other in the present invention;

[0034] Figure 2 This is a schematic diagram of the three-dimensional structure of the upper limit baffle and the guide slider connected to the present invention;

[0035] Figure 3 It is a schematic diagram of the three-dimensional structure of the connection between the movable support frame and the upper limit baffle of the present invention;

[0036] Figure 4 It is a schematic diagram of the three-dimensional structure of the connection between the supporting connecting rod and the supporting slide plate of the present invention;

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the connection between the supporting slide plate and the chassis body of the present invention;

[0038] Figure 6 It is a schematic diagram of the three-dimensional structure of the mobile support frame of the present invention;

[0039] Figure 7 This is a schematic diagram of the three-dimensional structure of the guide slider and the positioning slider connected to the present invention;

[0040] Figure 8 This is a schematic diagram of the three-dimensional structure of the positioning slide bar connected to the first magnet of the present invention;

[0041] Fig. 9 This is a schematic diagram of the three-dimensional structure of the guide slider and the mounting groove of the present invention;

[0042] Fig.10 This is a schematic diagram of the three-dimensional structure of the upper protection box and the positioning card block connected to the present invention;

[0043] Fig.11 It is a schematic diagram of the three-dimensional structure of the inner support slider and the guide roller connected to the present invention;

[0044] Fig.12 It is a schematic diagram of the three-dimensional structure of the connection between the second magnet and the linkage piston column of the present invention.

[0045] In the figure: 1. Mobile support frame; 2. Support connecting rod; 3. Supporting slide plate; 4. Chassis body; 5. Upper limit baffle; 6. Guide slider; 7. Positioning slide bar; 8. First magnet; 9. Mounting groove; 10. Second magnet; 11. Linkage piston column; 12. Connecting air guide groove; 13. Auxiliary buffer air bag; 14. Lower protection box; 15. Upper protection box; 16. Tester body; 17. Positioning block; 18. Unlocking push block; 19. Guide slide bar; 20. Limiting slot; 21. Inner support slider; 22. Guide roller. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figure 1-12 The present invention provides a technical solution: a protective medical leakage current tester, comprising a mobile support frame 1, a support connecting rod 2, a supporting slide plate 3, a chassis body 4, an upper limit baffle 5, a guide slider 6, a positioning slide bar 7, a first magnet 8, an installation groove 9, a second magnet 10, a linkage piston column 11, a connecting air guide groove 12, an auxiliary buffer air bag 13, a lower protection box 14, an upper protection box 15, a tester body 16, a positioning block 17, an unlocking push block 18, a guide slide bar 19, a limiting slot 20, an inner support slide bar 21 and a guide roller 22. The mobile support frame 1 is a C-shaped design. The lower end surface of the mobile support frame 1 is penetrated by a support connecting rod 2, the upper surface of the support connecting rod 2 is fixedly connected to the supporting slide plate 3, and the upper surface of the supporting slide plate 3 is fixedly connected to the chassis. The main body 4 and the outer surface of the lower end of the movable support frame 1 are provided with rollers, and the outer surface of the upper end of the movable support frame 1 is provided with handrails. The movable support frame 1 is slidably connected with the supporting connecting rod 2, and a limiting ball is fixed at the lower end of the supporting connecting rod 2. A spring is connected between the lower surface of the supporting slide 3 and the outer surface of the movable support frame 1. The rear surface of the chassis body 4 is fixedly connected with a power supply, and the surface of the movable support frame 1 is provided with a power supply wiring slot. When using the device, the movable support frame 1 is first moved to facilitate the device to increase the working range. When working, the supporting slide 3 is supported by the supporting connecting rod 2, and the surface of the supporting slide 3 is fixedly connected to the chassis body 4. The supporting link 2 moves vertically relative to the movable support frame 1, so that the spring between the supporting slide 3 and the movable support frame 1 is buffered.

[0048] An upper limit baffle 5 is fixedly connected to the upper end of the mobile support frame 1, and a slide groove is opened on the inner wall of the upper limit baffle 5, and a guide slider 6 is installed on the inner wall of the slide groove of the upper limit baffle 5. A positioning slide bar 7 is installed on the surface of the guide slide bar 6. The upper limit baffle 5 is a square ring design, and the upper limit baffle 5 and the guide slider 6 form a sliding connection. A spring is connected between the guide slider 6 and the upper limit baffle 5. The guide slider 6 and the positioning slide bar 7 form a sliding connection, and the vertical cross-section of the positioning slide bar 7 is a T-shaped design. A spring is connected between the guide slider 6 and the positioning slide bar 7. The first magnet 8 is a strip design. Through the lower protective The tester body 16 is fixedly installed in the box 14, and the tester body 16 is connected to the chassis body 4 through a wire. The lower protective box 14 is supported by the positioning slide bar 7. After the lower protective box 14 drives the positioning slide bar 7 to slide horizontally, the positioning slide bar 7 with the same movement direction as the lower protective box 14 will move relative to the guide slide bar 6, and the positioning slide bar 7 perpendicular to the movement direction of the lower protective box 14 will drive the guide slide bar 6 to slide relative to the upper limit baffle 5. After the positioning slide bar 7 moves relative to the guide slide bar 6, the positioning slide bar 7 drives the first magnet 8 on the surface to move, and then the strip-shaped first magnet 8 will correspond to and repel the second magnet 10.

[0049] The side surface of the positioning slide bar 7 is fixedly connected with a first magnet 8, and a linkage buffer mechanism is arranged inside the guide slide bar 6, which is provided with a second magnet 10 and a linkage piston column 11 through a mounting groove 9 and inflates the auxiliary buffer airbag 13 through a connecting air guide groove 12. The linkage buffer mechanism includes a mounting groove 9, which is opened on the inner wall of the guide slide bar 6, and a linkage piston column 11 is connected to the inner wall of the mounting groove 9. The end of the linkage piston column 11 facing the positioning slide bar 7 is fixedly connected with the second magnet 10, and a connecting air guide groove 12 is opened inside the guide slide bar 6. The surface of the guide slide bar 6 is fixedly connected with an auxiliary buffer airbag 13, and the mounting groove 9 and the linkage piston column 11 constitute Sliding connection, a spring is connected between one end of the linkage piston column 11 and the mounting groove 9, the second magnet 10 has the same magnetic pole as the end facing the first magnet 8, one end of the connecting air guide groove 12 is connected to the mounting groove 9, and the other end of the connecting air guide groove 12 is connected to the cavity of the auxiliary buffer airbag 13. After the second magnet 10 is repelled, it will drive the linkage piston column 11 in the mounting groove 9 to slide, and then the linkage piston column 11 will guide the air from the connecting air guide groove 12 into the auxiliary buffer airbag 13, so that the auxiliary buffer airbag 13 is inflated, and the auxiliary buffer airbag 13 will resist the moving lower protective box 14 for buffering, thereby reducing the damage caused by the impact of the lower protective box 14.

[0050] One end of the positioning slide bar 7 is fixedly connected to a lower protection box 14, and a guide slide bar 19 is fixedly connected to the upper surface of the lower protection box 14. An upper protection box 15 is installed on the outer surface of the guide slide bar 19. A groove is provided on the surface of the lower protection box 14, and a tester body 16 is fixedly installed on the inner wall of the groove of the lower protection box 14. A groove is provided on the lower surface of the upper protection box 15, and a positioning block 17 is provided on the inner wall of the groove of the upper protection box 15. An unlocking push block 18 is embedded on the side surface of the lower protection box 14, and a limited slot 2 is provided on the upper outer surface of the guide slide bar 19. 0, the inner wall of the limit slot 20 is installed with an inner support slider 21, and the side surface of the inner support slider 21 is embedded with a guide roller 22, the positioning block 17 is slidably connected with the upper protection box 15, and a spring is connected between the positioning block 17 and the upper protection box 15, the lower end of the positioning block 17 is hook-shaped, and the positioning block 17 is engaged with the lower protection box 14, the unlocking push block 18 is slidably connected with the lower protection box 14, and a spring is connected between the unlocking push block 18 and the lower protection box 14, and the upper end of the guide slide 19 passes through the lower surface of the upper protection box 15 The limiting slot 20 is designed with a spring between the lower protection box 14 and the upper protection box 15. The inner wall of the limiting slot 20 is designed to be inclined. The side surface of the inner support slider 21 is designed to be inclined. The inner support slider 21 is connected to the guide slide bar 19 in a sliding manner, and a spring is connected between the inner support slider 21 and the guide slide bar 19. The inner support slider 21 is connected to the guide roller 22 in a rotating manner, and the guide rollers 22 are evenly arranged on the inclined surface of the inner support slider 21. The tester body 16 is protected by the lower protection box 14 and the upper protection box 15, and the lower protection box is engaged by the positioning block 17. 14 limits the upper protective box 15, and when unlocking, the unlocking push block 18 is pressed, and then the unlocking push block 18 pushes the positioning block 17 to release the lower protective box 14, and then the spring pushes the upper protective box 15 to slide up, so that the upper protective box 15 moves relative to the guide slide bar 19. At this time, the inner support slider 21 on the surface of the guide slide bar 19 is pushed out by the spring, so that the inner support slider 21 is fitted with the inner wall of the limiting groove 20, thereby braking and decelerating. At the same time, the evenly arranged guide rollers 22 reduce wear, prevent the upper protective box 15 from generating impact force, and increase the practicality of the device.

[0051] Working principle: When using the protective medical leakage current tester, the supporting rod 2 and the supporting slide 3 are installed by moving the supporting frame 1, and then the chassis body 4 is fixed on the surface of the supporting slide 3, so that the supporting rod 2 can be buffered while sliding vertically, and the guide slider 6 is installed through the upper limit baffle 5, so that the lower protection box 14 moves and then drives the guide slider 6 to move through the positioning slide 7. When the positioning slide 7 and the guide slider 6 move relative to each other, the positioning slide 7 drives the first magnet 8 to correspond to and repel the second magnet 10, so that the second magnet The iron 10 drives the linkage piston column 11 to slide in the installation groove 9, so that the linkage piston column 11 pushes the air into the connecting air guide groove 12, so that the auxiliary buffer airbag 13 can fit and buffer the lower protection box 14 after being inflated. By pressing the unlocking push block 18, the positioning block 17 is driven to slide and unlock, and then the upper protection box 15 is pushed up by the spring, and then the inner support slider 21 on the surface of the guide slide rod 19 extends out, so that the inner support slider 21 is against the inner wall of the limiting slot 20 through the guide roller 22 to perform friction buffering, thereby increasing the overall practicality.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective medical leakage current tester, comprising a movable support frame (1), which is of C-shaped design, a supporting connecting rod (2) is installed through the lower end surface of the movable support frame (1), a supporting slide plate (3) is fixedly connected to the upper surface of the supporting connecting rod (2), and a chassis body (4) is fixedly connected to the upper surface of the supporting slide plate (3), characterized in that: The upper end of the movable support frame (1) is fixedly connected to an upper limit baffle (5), the inner wall of the upper limit baffle (5) is provided with a slide groove, and the inner wall of the slide groove of the upper limit baffle (5) is installed with a guide slider (6), the surface of the guide slider (6) is penetrated by a positioning slide bar (7), the side surface of the positioning slide bar (7) is fixedly connected with a first magnet (8), the inside of the guide slider (6) is provided with a linkage buffer mechanism, which is provided with a second magnet (10) and a linkage piston column (11) through an installation groove (9) and inflates the auxiliary buffer airbag (13) through a connecting air guide groove (12), one end of the positioning slide bar (7) is fixedly connected to a lower protective box (14), the upper surface of the lower protective box (14) A guide slide bar (19) is fixedly connected to the surface, an upper protective box (15) is installed on the outer surface of the guide slide bar (19), a groove is provided on the surface of the lower protective box (14), and a tester body (16) is fixedly installed on the inner wall of the groove of the lower protective box (14), a groove is provided on the lower surface of the upper protective box (15), and a positioning block (17) is provided on the inner wall of the groove of the upper protective box (15), an unlocking push block (18) is embeddedly installed on the side surface of the lower protective box (14), a limiting groove (20) is provided on the upper outer surface of the guide slide bar (19), an inner support slide bar (21) is installed on the inner wall of the limiting groove (20), and a guide roller (22) is embeddedly installed on the side surface of the inner support slide bar (21).

2. A protective medical leakage current tester according to claim 1, characterized in that: The outer surface of the lower end of the movable support frame (1) is provided with a roller, the outer surface of the upper end of the movable support frame (1) is provided with an armrest, the movable support frame (1) is slidably connected to the supporting connecting rod (2), and a limiting ball is fixed at the lower end of the supporting connecting rod (2).

3. A protective medical leakage current tester according to claim 1, characterized in that: A spring is connected between the lower surface of the supporting slide plate (3) and the outer surface of the movable support frame (1); a power source is fixedly connected to the rear surface of the chassis body (4); and a power source wiring slot is provided on the surface of the movable support frame (1).

4. A protective medical leakage current tester according to claim 1, characterized in that: The upper limit baffle (5) is designed as a square ring, and the upper limit baffle (5) is slidably connected to the guide slider (6), and a spring is connected between the guide slider (6) and the upper limit baffle (5).

5. The protective medical leakage current tester according to claim 1, characterized in that: The guide slider (6) and the positioning slider (7) are slidably connected, and the vertical cross section of the positioning slider (7) is T-shaped. A spring is connected between the guide slider (6) and the positioning slider (7), and the first magnet (8) is strip-shaped.

6. A protective medical leakage current tester according to claim 1, characterized in that: The linkage buffer mechanism comprises a mounting groove (9), the mounting groove (9) being formed on the inner wall of the guide slider (6), the inner wall of the mounting groove (9) being connected to a linkage piston column (11), one end of the linkage piston column (11) facing the positioning slide bar (7) being fixedly connected to a second magnet (10), a connecting air guide groove (12) being formed inside the guide slider (6), and an auxiliary buffer air bag (13) being fixedly connected to the surface of the guide slider (6).

7. A protective medical leakage current tester according to claim 6, characterized in that: The installation groove (9) and the linkage piston column (11) form a sliding connection, a spring is connected between one end of the linkage piston column (11) and the installation groove (9), and the second magnet (10) has the same magnetic pole as the end facing the first magnet (8).

8. A protective medical leakage current tester according to claim 6, characterized in that: One end of the communicating air guide groove (12) is in communication with the mounting groove (9), and the other end of the communicating air guide groove (12) is in communication with the cavity of the auxiliary buffer air bag (13).

9. The protective medical leakage current tester according to claim 1, characterized in that: The positioning block (17) is slidably connected to the upper protection box (15), and a spring is connected between the positioning block (17) and the upper protection box (15). The lower end of the positioning block (17) is hook-shaped, and the positioning block (17) is snap-fitted to the lower protection box (14).

10. The protective medical leakage current tester according to claim 1, characterized in that: The unlocking push block (18) is slidably connected to the lower protection box (14), and a spring is connected between the unlocking push block (18) and the lower protection box (14). The upper end of the guide slide bar (19) passes through the limiting groove (20) on the lower surface of the upper protection box (15), and a spring is connected between the lower protection box (14) and the upper protection box (15). The inner wall of the limiting groove (20) is inclined, and the side surface of the inner support slider (21) is inclined. The inner support slider (21) is slidably connected to the guide slide bar (19), and a spring is connected between the inner support slider (21) and the guide slide bar (19). The inner support slider (21) is rotatably connected to the guide roller (22), and the guide roller (22) is evenly arranged on the inclined surface of the inner support slider (21).

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