A portable medical pressure tester with an overheat protection structure

Abstract

The present invention relates to the technical field of medical pressure-resistant testers, and specifically relates to a portable medical pressure-resistant tester with an overheat protection structure, which includes a main housing and a front housing installed on the front side of the main housing. On the front side of the front housing, a switch button, an adjustment knob, and a high-voltage output terminal are sequentially installed from left to right. A display screen is connected to the front housing above the adjustment knob. Filter plates and cooling fans are installed in grooves on both the left and right sides of the main housing. For this portable medical pressure-resistant tester with an overheat protection structure, through the combined use of the second connection net and the second upper housing, not only is the space inside the medical pressure-resistant tester increased to avoid the accumulation of hot air in a narrow area, but also a part of the hot air can be diffused and discharged upward and around through the second connection net in a "hui" shape. Therefore, the efficiency and effect of heat dissipation and ventilation of the medical pressure-resistant tester can be improved, and damage caused by long-term operation or too high ambient temperature can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical pressure-resistant testers, and particularly to a portable medical pressure-resistant tester with an overheat protection structure. Background Art

[0002] A portable medical pressure-resistant tester is a device specifically used to detect the voltage-resistant performance of the external insulating materials of medical instruments, so as to test whether a medical instrument can withstand a certain voltage for a certain period of time and a certain intensity, thereby ensuring that the medical instrument meets relevant standards in terms of electrical safety, ensuring that it will not break down or leak electricity under high-voltage environments, and ensuring that the medical instrument will not pose an electric shock risk to patients or operators under normal use or fault conditions. Therefore, the use of a portable medical pressure-resistant tester is particularly important;

[0003] For example, in the prior art, the patent with the publication number "CN213343195U" and the patent name "A Medical Pressure-Resistant Tester for a Stone Composition Analyzer" discloses that the heat dissipation mechanism is composed of a fan, a baffle, a through groove, a screen, a linkage belt, a micro motor, a screw, a sleeve, a hinge seat and a frame. The frames are respectively fixedly connected to the interiors on both sides of the instrument main body. One side of the frame is movably connected with a fan through a transmission rod, and a micro motor is fixedly connected to one side of the fan. A screen is arranged inside the other side of the frame. Through grooves are respectively arranged inside both sides of the instrument main body. A hinge seat is fixedly connected to the middle position at the bottom end inside the through groove, and a sleeve is fixedly connected to the inside of the hinge seat. The baffles are respectively movably hinged to both sides outside the instrument main body. A screw is movably connected between the inside of the sleeve and the baffle, and a linkage belt is movably connected between one side of the screw and the fan. Start the micro motor to drive the fan on one side to rotate, and then rotate the sleeve in the hinge seat with the linkage belt connected to the other side, so that the hidden screw inside gradually slides out and supports the baffle. At the same time, the negatively rotating fan discharges the hot air out of the instrument main body through the screen in the frame, which not only prevents dust but also improves the heat dissipation effect;

[0004] The above-mentioned medical pressure-resistant tester in the prior art simply dissipates heat through a fan, and the negatively rotating fan discharges the hot air out of the instrument main body through the screen in the frame. In this way, since the space inside the instrument main body is fixed during the heat dissipation and ventilation process, the hot air will accumulate in a narrow area, resulting in a relatively high local temperature, and the hot air can only be discharged through the screen on one side, thus resulting in poor heat dissipation and ventilation efficiency and effect, which will cause the internal temperature of the medical pressure-resistant tester to overheat and affect its later use. Therefore, we propose a portable medical pressure-resistant tester with an overheat protection structure to solve the problems mentioned above. Summary of the Invention

[0005] The object of the present invention is to provide a portable medical pressure withstand tester with an overheat protection structure, so as to solve the problem proposed in the above background technology that the current medical pressure withstand testers on the market simply dissipate heat through a fan. Since the space inside the instrument main body is fixed during the heat dissipation and ventilation process, hot air will accumulate in a narrow area, resulting in a relatively high local temperature, and thus the heat dissipation and ventilation efficiency and effect are poor.

[0006] To achieve the above object, the present invention provides the following technical solution: A portable medical pressure withstand tester with an overheat protection structure, including a main housing, and a front housing installed on the front side of the main housing. On the front side of the front housing, a switch button, an adjustment knob, and a high-voltage output terminal are installed in sequence from left to right. A display screen is connected to the front housing above the adjustment knob. A printed circuit board is connected to the mounting plate inside the main housing, and the upper surface of the main housing is internally grooved and connected to a first upper housing through a second connection network. Moreover, the four corners below the first upper housing are connected to the inside of the main housing through a self-regulating component. Filter plates and cooling fans are installed in grooves on both the left and right sides of the main housing, and filter plates are arranged outside the cooling fans.

[0007] Preferably, the self-regulating component includes a sleeve installed inside the main housing. Mercury is injected into the inside of the sleeve. A piston assembly is fitted inside the sleeve above the mercury liquid level. The upper end of the piston assembly is connected to the first upper housing. Moreover, a return spring is nested and connected to the outer side of the upper end of the piston assembly. The upper end of the return spring is connected to the first upper housing, and the lower end of the return spring is connected to the upper end of the sleeve.

[0008] Through the setting of the above structure, the mercury can expand in volume when heated, so as to automatically drive the piston assembly to move upward without the need for an additional power source. Thus, not only energy is saved, but also the use cost is reduced. At the same time, the weight of the entire medical pressure withstand tester is reduced, which is convenient for carrying the medical pressure withstand tester.

[0009] Preferably, the first upper housing forms a lifting structure through the piston assembly.

[0010] Through the setting of the above structure, the four piston assemblies can stably drive the first upper housing to lift and lower.

[0011] Preferably, a second upper housing is installed in a groove inside the first upper housing. The outer side above the second upper housing is connected to the inner side wall of the first upper housing through a first connection network. A rotating rod is fixedly penetrated through the lower part inside the second upper housing. Both ends of the rotating rod are rotatably connected to the inside of the first upper housing. A first control rope is wound and connected to the outer side of the left end of the rotating rod. The lower end of the first control rope is connected to the main housing. A first scroll spring is nested and connected to the outer side of the left end of the rotating rod.

[0012] With the above - mentioned structure, the energy storage of the first scroll spring can drive the rotating rod to rotate reversely and reset.

[0013] Preferably, the first connecting net, the second connecting net and the first upper shell are all arranged in a "hui" - shaped structure.

[0014] With the above - mentioned structure, it can prevent external dust and impurities from entering the main shell.

[0015] Preferably, the second upper shell forms a rotating structure with the rotating rod as the center of the circle.

[0016] With the above - mentioned structure, the second upper shell can be rotated and opened well.

[0017] Preferably, the mesh diameters of the first connecting net and the second connecting net are equal to the mesh diameter of the filter plate.

[0018] With the above - mentioned structure, it is convenient for the first connecting net and the second connecting net to block external dust and impurities.

[0019] Preferably, a power socket and a grounding wire are installed on the rear side of the main shell.

[0020] Preferably, two threaded rods are installed inside the rear side of the main shell. A second control rope with a certain reserved length is wound and connected to the outer side of the front end of the threaded rod. The upper end of the second control rope passes through the inside of the rear side of the main shell and is connected to the rear side of the first upper shell. A second scroll spring is nested on the outer side of the front end of the threaded rod, and one end of the second scroll spring is connected to the inside of the rear side of the main shell.

[0021] With the above - mentioned structure, the energy storage of the second scroll spring can drive the threaded rod to rotate reversely and reset later.

[0022] Preferably, arc - shaped pushing blocks are symmetrically installed in grooves inside the power socket. The rear end of the threaded rod passes through the front side of the power socket and is inserted into the pushing block. The pushing block is threadedly connected to the threaded rod.

[0023] With the above - mentioned structure, the pushing block can move stably.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: The portable medical pressure - resistant tester with an over - heat protection structure, through the combined use of the second connecting net and the second upper shell, not only increases the space inside the medical pressure - resistant tester, avoids the accumulation of hot air in a narrow area, but also enables a part of the hot air to diffuse and be discharged upward and around through the "hui" - shaped second connecting net. Therefore, it can improve the efficiency and effect of heat dissipation and ventilation of the medical pressure - resistant tester, and avoid damage caused by long - term work or too high environmental temperature. The specific content is as follows:

[0025] When the temperature inside the main housing is relatively high, it will cause the mercury in the sleeve to drive the piston assembly to move upward. The piston assembly will push the second upper housing upward, and the second connection net will be stretched. Therefore, by using the second connection net in conjunction with the second upper housing, not only is the space inside the medical pressure tester increased to avoid the accumulation of hot air in a narrow area, but also a part of the hot air can be diffused and discharged upward and around through the second connection net in the shape of a "hui" character. Therefore, the efficiency and effect of heat dissipation and ventilation of the medical pressure tester can be improved, and damage caused by long-term operation or too high ambient temperature can be avoided;

[0026] Furthermore, when the first upper housing moves upward, by automatically pulling the first control rope, it can automatically drive the rotating rod and the second upper housing to rotate. The second upper housing pulls the first connection net in the shape of a "hui" character, so that a part of the hot air can be discharged outward through the first connection net, and then overheat protection can be further carried out, reducing the loss of the medical pressure tester and extending its service life;

[0027] When the first upper housing continues to move upward, it can pull the second control rope. The second control rope drives the threaded rod to rotate, thereby causing the threaded rod to drive the pushing block to move outward. The pushing block can push the power cord bundle inserted in the power socket outward, thus cutting off the power supply to prevent damage to the medical pressure tester due to too high temperature, and further carrying out overheat protection on the medical pressure tester. Description of the Drawings

[0028] Figure 1 Schematic three-dimensional structure diagram of the present invention;

[0029] Figure 2 Schematic rear view structure diagram of the present invention;

[0030] Figure 3 Schematic partial cross-sectional structure diagram of the main housing of the present invention;

[0031] Figure 4 For the present invention Figure 3 Enlarged structure diagram at A in;

[0032] Figure 5 Schematic main cross-sectional structure diagram of the main housing of the present invention;

[0033] Figure 6 For the present invention Figure 5 Enlarged structure diagram at B in;

[0034] Figure 7 Schematic separation structure diagram of the first upper housing and the main housing of the present invention;

[0035] Figure 8 Schematic separation structure diagram of the first upper housing and the second upper housing of the present invention;

[0036] Figure 9 Schematic diagram of the partial sectional structure of the power socket of the present invention;

[0037] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure at position C in the present invention;

[0038] Figure 11 Schematic diagram of the separated structure of the power socket and the push block of the present invention;

[0039] Figure 12 Schematic diagram of the separated structure of the push block and the threaded rod of the present invention.

[0040] In the figure: 1, main housing; 2, front housing; 3, switch button; 4, adjustment knob; 5, high-voltage output terminal; 6, display screen; 7, first upper housing; 8, first connection net; 9, second upper housing; 10, filter plate; 11, second connection net; 12, mounting plate; 13, printed circuit board; 14, sleeve; 15, piston assembly; 16, return spring; 17, rotating rod; 171, first control rope; 172, first scroll spring; 18, second control rope; 19, power socket; 20, ground wire; 21, push block; 22, threaded rod; 221, second scroll spring; 23, cooling fan. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figures 1 - 12 , the present invention provides the following technical solutions:

[0043] Embodiment 1: The portable medical withstand voltage tester with an overheat protection structure in this embodiment can increase the internal space of the portable medical withstand voltage tester, avoid the accumulation of hot air in a narrow area, and thus can provide overheat protection for the portable medical withstand voltage tester. The specific structure is referred to in the appendix Figures 1 - 4As shown in the figure, it includes a main housing 1 and a front housing 2 installed on the front side of the main housing 1. A switch button 3, an adjustment knob 4, and a high-voltage output terminal 5 are sequentially installed on the front side of the front housing 2 from left to right. A display screen 6 is connected to the front housing 2 above the adjustment knob 4. A printed circuit board 13 is connected to a mounting plate 12 inside the main housing 1. The upper surface of the main housing 1 is internally grooved and connected to a first upper housing 7 through a second connection net 11. The four corners below the first upper housing 7 are connected to the inside of the main housing 1 through a self-regulating component. Filter plates 10 and cooling fans 23 are installed in grooves on both the left and right sides of the main housing 1. The filter plate 10 is arranged outside the cooling fan 23. The self-regulating component includes a sleeve 14 installed inside the main housing 1. Mercury is injected into the inside of the sleeve 14. A piston assembly 15 is fitted inside the sleeve 14 above the mercury liquid level. The upper end of the piston assembly 15 is connected to the first upper housing 7. A return spring 16 is nested outside the upper end of the piston assembly 15. The upper end of the return spring 16 is connected to the first upper housing 7, and the lower end of the return spring 16 is connected to the upper end of the sleeve 14. The first upper housing 7 forms a lifting structure through the piston assembly 15.

[0044] Since the overall volume of the medical withstand voltage tester is small, it is convenient to carry the entire medical withstand voltage tester. After moving the medical withstand voltage tester to the working area, connect the test electrode connected to the high-voltage output terminal 5 inside the medical withstand voltage tester to the conductive parts of the device under test, such as the outer shell, metal components, and the insulating parts, such as the power cord and internal circuit. Then insert the power cord bundle into the power socket 19, press the switch button 3, gradually increase the voltage to the set value, and maintain it for 1 minute at the set voltage. Observe whether breakdown or excessive leakage current occurs. During this process, the values of voltage and current during the test can be viewed through the display screen 6. The entire medical withstand voltage tester can then test the withstand voltage of the medical instrument. Since this part is prior art, no detailed introduction will be given here.

[0045] During the testing process, electrical components inside the medical withstand voltage tester will generate a certain amount of heat. At this time, the temperature sensor inside the main housing 1 detects the temperature. When the detected temperature reaches a certain value, the temperature sensor transmits this signal to the central processing module. The central processing module controls the cooling fan 23 to rotate to ventilate and dissipate heat inside the main housing 1. When the temperature inside the main housing 1 continues to rise, the mercury installed inside the sleeve 14 expands due to heat, causing the piston assembly 15 inside the sleeve 14 to move upward automatically. At this time, the piston assembly 15 drives the first upper housing 7 to move upward. The first upper housing 7 pulls the second connecting net 11 with a "hui" - shaped structure, thereby raising the highest point above the main housing 1, and then increasing the space inside the main housing 1. This allows a part of the hot air to flow inside the main housing 1 and be discharged later through the filter plate 10 on the right side, and another part of the hot air can diffuse and be discharged upward and around through the second connecting net 11 with a "hui" - shaped structure. Therefore, the efficiency and effect of heat dissipation and ventilation of the medical withstand voltage tester can be improved, avoiding damage caused by long - term operation or too high environmental temperature.

[0046] Embodiment 2: The portable medical withstand voltage tester with an overheat protection structure in this embodiment can further improve the efficiency of heat dissipation and ventilation and further protect the medical withstand voltage tester from overheating on the basis of Embodiment 1. The specific structure is as shown in the attached Figures 5 - 8 As shown, a second upper housing 9 is provided with a groove inside the first upper housing 7. The outer side above the second upper housing 9 is connected to the inner side wall of the first upper housing 7 through the first connecting net 8. A rotating rod 17 is fixedly penetrated inside the lower part of the second upper housing 9. Both ends of the rotating rod 17 are rotatably connected to the inside of the first upper housing 7. A first control rope 171 is wound and connected to the outer side of the left end of the rotating rod 17. The lower end of the first control rope 171 is connected to the main housing 1. A first scroll spring 172 is nested and connected to the outer side of the left end of the rotating rod 17. The first connecting net 8, the second connecting net 11, and the first upper housing 7 are all arranged in a "hui" - shaped structure. The second upper housing 9 forms a rotating structure with the rotating rod 17 as the center. The mesh diameters inside the first connecting net 8 and the second connecting net 11 are equal to the mesh diameter inside the filter plate 10. When the first upper housing 7 rises, it will automatically pull the first control rope 171, causing the first control rope 171 to drive the rotating rod 17 to rotate, and the first scroll spring 172 to store energy. The rotating rod 17 drives the second upper housing 9 to rotate and be inclined. At this time, the second upper housing 9 pulls and unfolds the front and back sides of the first connecting net 8. Thus, another part of the hot air can be discharged outward through the front and back sides of the first connecting net 8, and further protect the medical withstand voltage tester from overheating, reduce the loss of the medical withstand voltage tester, and extend its service life.

[0047] Embodiment 3: The portable medical pressure-resistant tester with an overheat protection structure in this embodiment, on the basis of Embodiment 1, when the temperature is too high, the power supply can be cut off to protect the medical pressure-resistant tester from overheating, thereby avoiding damage to the medical pressure-resistant tester. For the specific structure, refer to the appendix Figures 9 - 12 As shown, a power socket 19 and a ground wire 20 are installed on the rear side of the main housing 1. Two threaded rods 22 are installed inside the rear side of the main housing 1. A second control rope 18 with a certain reserved length is wound and connected to the outer side of the front end of the threaded rod 22. The upper end of the second control rope 18 passes through the inside of the rear side of the main housing 1 and is connected to the rear side of the first upper housing 7. A second scroll spring 221 is nested on the outer side of the front end of the threaded rod 22. One end of the second scroll spring 221 is connected to the inside of the rear side of the main housing 1. Arc-shaped push blocks 21 are symmetrically installed in the power socket 19 by grooving. The rear end of the threaded rod 22 passes through the front side of the power socket 19 and is inserted into the push block 21. The push block 21 is threadedly connected to the threaded rod 22.

[0048] When the temperature sensor detects that the temperature inside the main housing 1 reaches a certain value, the mercury installed in the sleeve 14 continues to expand due to heat at this time, so that the piston assembly 15 inside the sleeve 14 continues to move upward. At this time, the first upper housing 7 continues to move upward. When the first upper housing 7 straightens the second control rope 18 with a certain reserved length, if the second control rope 18 is pulled continuously at this time, the second control rope 18 drives the threaded rod 22 to rotate. At this time, the second scroll spring 221 stores energy. Then, when the threaded rod 22 rotates, it drives the push block 21 threadedly connected to the outside to move outward, so that the push block 21 pushes the wire harness inserted in the power socket 19 outward, thereby cutting off the power supply, preventing the medical pressure-resistant tester from being damaged due to excessive temperature, and further protecting the medical pressure-resistant tester from overheating.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A portable medical pressure tester with an overheat protection structure, comprising a main housing (1) and a front housing (2) installed on the front side of the main housing (1). A switch button (3), an adjustment knob (4), and a high-voltage output terminal (5) are sequentially installed on the front side of the front housing (2) from left to right. It is characterized in that: A display screen (6) is connected to the front housing (2) above the adjustment knob (4). A printed circuit board (13) is connected to the mounting plate (12) inside the main housing (1). The upper surface of the main housing (1) is internally grooved and connected to the first upper housing (7) through the second connection net (11). The four corners below the first upper housing (7) are connected to the inside of the main housing (1) through a self-regulating component. Filter plates (10) and cooling fans (23) are installed in the grooves on both left and right sides of the main housing (1). The filter plate (10) is arranged outside the cooling fan (23). The self-regulating component includes a sleeve (14) installed inside the main housing (1). Mercury is injected into the sleeve (14). A piston assembly (15) is fitted inside the sleeve (14) above the mercury level. The upper end of the piston assembly (15) is connected to the first upper housing (7). The first upper housing (7) forms a lifting structure through the piston assembly (15). A second upper housing (9) is installed in the groove inside the first upper housing (7). The outer side above the second upper housing (9) is connected to the inner side wall of the first upper housing (7) through the first connection net (8). A rotating rod (17) is fixedly penetrated through the lower part inside the second upper housing (9). Both ends of the rotating rod (17) are rotatably connected to the inside of the first upper housing (7). A first control rope (171) is wound and connected to the outer side of the left end of the rotating rod (17). The lower end of the first control rope (171) is connected to the main housing (1). The first connection net (8), the second connection net (11), and the first upper housing (7) are all arranged in a "return" shape structure. The second upper housing (9) forms a rotating structure with the rotating rod (17) as the center. The mesh diameters inside the first connection net (8) and the second connection net (11) are equal to the mesh diameter inside the filter plate (10).

2. The portable medical pressure-resistant tester with an overheat protection structure according to claim 1, characterized in that: A return spring (16) is nested and connected to the outer side of the upper end of the piston assembly (15). The upper end of the return spring (16) is connected to the first upper housing (7), and the lower end of the return spring (16) is connected to the upper end of the sleeve (14).

3. A portable medical pressure tester with an overheat protection structure according to claim 1, characterized in that: A first scroll spring (172) is nested and connected to the outer side of the left end of the rotating rod (17).

4. A portable medical pressure tester with an overheat protection structure according to claim 1, characterized in that: A power socket (19) and a ground wire (20) are installed on the rear side of the main housing (1).

5. A portable medical pressure tester with an overheat protection structure according to claim 4, characterized in that: Two threaded rods (22) are installed inside the rear side of the main housing (1). A second control rope (18) is wound and connected to the outer side of the front end of the threaded rod (22). The upper end of the second control rope (18) penetrates through the inside of the rear side of the main housing (1) and is connected to the rear side of the first upper housing (7). A second scroll spring (221) is nested and connected to the outer side of the front end of the threaded rod (22). One end of the second scroll spring (221) is connected to the inside of the rear side of the main housing (1).

6. The portable medical pressure-resistant tester with an overheat protection structure according to claim 5, wherein: Arc-shaped pushing blocks (21) are symmetrically installed in the grooves inside the power socket (19). The rear end of the threaded rod (22) penetrates through the front side of the power socket (19) and is inserted into the pushing block (21). The pushing block (21) is threadedly connected to the threaded rod (22).

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