A medical device

Abstract

The utility model discloses a kind of medical equipment, comprising: shell, two slide rails, dust cover and locking piece, the bottom of shell is equipped with heat dissipation hole, two slide rails are fixed in the bottom of shell, dust cover is slidably connected in two slide rails, when dust cover is slid along slide rail to working position, dust cover cover is equipped in heat dissipation hole to make heat dissipation hole and outside isolation;Locking piece is configured to change setting position under the action of external tooling, the butt direction of locking piece and external tooling is parallel to the bottom of shell, when locking piece is in first position, dust cover is locked in working position, when locking piece is in second position, dust cover is unlocked and can slide relative to slide rail.Based on the above scheme, the medical equipment provided in the present application can install dust cover to the bottom of shell or detach from the bottom of shell without turning over the shell, which can effectively improve the convenience of installing and detaching the dust cover.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a medical device. Background Technology

[0002] For medical devices with heat sources, heat dissipation is necessary to ensure stable operation. For example, a heat dissipation vent can be installed at the bottom of the medical device, and a fan can be used to introduce cool air from outside into the medical device for heat dissipation.

[0003] To ensure clean air intake, a dust cover is currently installed at the heat dissipation vent. The dust cover is fixed to the bottom of the medical device with screws and needs to be removed and cleaned after a period of use. Before disassembly, the medical device must be powered off, all wiring harnesses connected to the device must be removed, the device must be flipped over, and finally, the screws must be removed to remove the dust cover. The disassembly process involves several steps and is therefore quite cumbersome.

[0004] Therefore, how to improve the ease of disassembly and assembly of dust covers is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a medical device that can effectively improve the ease of disassembly and assembly of dust covers.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A medical device comprising:

[0008] The housing has heat dissipation holes at its bottom;

[0009] Two slide rails are fixed to the bottom of the housing; the heat dissipation hole is located between the two slide rails.

[0010] A dust cover is slidably connected to two slide rails. When the dust cover slides along the slide rails to the working position, the dust cover covers the heat dissipation hole to isolate the heat dissipation hole from the outside.

[0011] A locking member is configured to change its position under the action of an external tooling. The docking direction of the locking member and the external tooling is parallel to the bottom of the housing. When the locking member is in a first position, the dust cover is locked in the working position. When the locking member is in a second position, the dust cover is unlocked and can slide relative to the slide rail.

[0012] In some embodiments, a fixing part is provided on the bottom of the housing and either of the slide rail, the fixing part including a threaded hole, the axis of the threaded hole being parallel to the bottom of the housing;

[0013] The dust cover includes a limiting plate, and the limiting plate is provided with a connecting hole coaxial with the threaded hole;

[0014] The locking element includes a locking screw, one end of which passes through the connecting hole to connect with or disconnect from the threaded hole;

[0015] When the locking screw is screwed into the threaded hole under the action of the external tooling and the dust cover abuts against the fixing part, the locking screw is in the first position; when the locking screw is screwed out and disengaged from the threaded hole under the action of the external tooling, the locking screw is in the second position.

[0016] In some embodiments, the fixing part is disposed at one end of the slide rail, and the axis of the threaded hole is parallel to the extension direction of the slide rail.

[0017] In some embodiments, the dust cover further includes a first nut, which is fixed in the connecting hole and coaxial with the connecting hole;

[0018] The locking screw includes a screw head, a smooth rod section and a threaded section arranged in sequence. The outer diameter of the threaded section is larger than the outer diameter of the smooth rod section. The smooth rod section passes through the first nut and is clearance-fitted with the first nut.

[0019] When the locking screw is in the first position, the length of the threaded section and the threaded hole that engages with each other is not greater than the minimum distance between the threaded section and the first nut.

[0020] In some embodiments, a retaining portion is provided at the bottom of the housing and either of the slide rails, and the locking member is movably connected to the retaining portion; a locking groove is provided on the side of the dust cover;

[0021] When the locking member moves to the first position under the action of the external tooling, the locking member engages with the locking groove; when the locking member moves to the second position under the action of the external tooling, the locking member disengages from the locking groove.

[0022] In some embodiments, the retaining part includes a first bracket, the locking member includes a first rotating shaft and a stop bar disposed on the side wall of the first rotating shaft, the two ends of the first rotating shaft are rotatably connected to the first bracket, and one end of the first rotating shaft is provided with a screwing part, the screwing part being exposed outside the first bracket to dock with the external tooling.

[0023] When the first rotating shaft is rotated to the first position, the head of the stop lever is engaged in the locking groove; when the first rotating shaft is rotated to the second position, the head of the stop lever is moved out of the locking groove.

[0024] In some embodiments, the retaining portion further includes a first elastic member, and the locking member further includes a locking shaft disposed on the side wall of the first rotating shaft. The locking shaft and the stop lever are spaced apart in the axial and / or circumferential directions. The first bracket is provided with a locking groove and an unlocking groove that communicate with each other. When the first rotating shaft is in a first position, the locking shaft is engaged in the locking groove under the action of the first elastic member. When the first rotating shaft is in a second position, the locking shaft is engaged in the unlocking groove under the action of the first elastic member.

[0025] In some embodiments, the retaining part includes a second bracket, and the locking member includes a second rotating shaft, a gear and a rack. The two ends of the second rotating shaft are rotatably connected to the second bracket, the gear is disposed on the second rotating shaft, the rack meshes with the gear, and the rack is movable relative to the second bracket.

[0026] When the second rotating shaft rotates to the first position under the action of the external tooling, one end of the rack is engaged in the locking groove. When the second rotating shaft rotates to the second position under the action of the external tooling, one end of the rack is disengaged from the locking groove.

[0027] In some embodiments, the retaining portion includes a third bracket, a second elastic member, and a driving assembly; the locking member includes a locking pin, which is movably connected to the third bracket; and the two ends of the second elastic member abut against the third bracket and the locking pin, respectively.

[0028] In its natural state, the locking pin is engaged in the locking groove and held in the first position by the elastic force of the second elastic member. Under the action of the external tooling, the driving assembly drives the locking pin to exit from the locking groove, so that the locking pin retracts to the second position.

[0029] In some embodiments, the locking pin is a U-shaped pin, and the locking pin includes a first pin, a second pin, and a third pin. The first pin and the second pin are arranged parallel to each other, and the two ends of the third pin are connected to the first pin and the second pin. The first pin and the second pin are movably connected to the third bracket, and the two ends of the second elastic member abut against the first pin and the third bracket, respectively.

[0030] The driving assembly includes a slider and a third elastic element. The slider is movably connected to the third bracket, and both ends of the slider abut against the third bracket and the third elastic element, respectively. The slider has an inclined surface, and the end of the second pin contacts the inclined surface. The slider is pressed against the third bracket under the elastic force of the third elastic element, and the first pin is held in the first position under the elastic force of the second elastic element. Under the push of the external tooling, the slider pushes the second pin to move through the inclined surface, thereby causing the first pin to retract to the second position.

[0031] In some embodiments, the sides of the two slide rails are respectively provided with guide grooves, and the two sides of the dust cover are slidably connected to the guide grooves.

[0032] In some embodiments, the guide groove has a protrusion on the side wall of the dust cover in a direction perpendicular to the bottom of the housing, and the protrusion abuts against the dust cover.

[0033] In some embodiments, the side of the dust cover is provided with a limiting groove, and the slide rail is provided with a fourth elastic member. The fourth elastic member is used to engage in the limiting groove when the dust cover moves to the working position. The fourth elastic member can retract into the slide rail under the squeezing action of the side of the dust cover where the limiting groove is not provided when the dust cover is pushed or pulled.

[0034] In some embodiments, one end of the dust cover is provided with a mounting part, which is used for a user or a pull-out tool to apply a pulling force to the dust cover.

[0035] In some embodiments, the housing includes a wall portion having a cable interface, and the locking member is positioned such that the external tooling extends into the bottom of the housing from a side other than the side where the wall portion is located to apply force to the locking member.

[0036] Compared with existing technologies, the above technical solution has the following advantages:

[0037] The medical device provided by this utility model allows for the following features: when a dust cover needs to be fixed, the locking member is adjusted to the first position, locking the dust cover in its working position; when the dust cover needs to be removed, the locking member is adjusted to the second position, unlocking the dust cover and allowing it to slide relative to the slide rail. The locking member's position is changed by the action of an external tooling, thus meeting the safety requirements of medical devices (the dust cover also serves as a fireproof structure and cannot be disassembled by hand). Furthermore, since the docking direction between the locking member and the external tooling is parallel to the bottom of the housing, when removing the dust cover, the external tooling can be inserted into the bottom of the housing along a direction parallel to the bottom of the housing, docking with the locking member and applying force to the locking member to position it in the second position. Then, the dust cover can be pulled out from the slide rail. This disassembly process does not require flipping the housing, effectively improving the convenience of disassembly. Similarly, during installation, there is no need to flip the housing; the dust cover is simply pushed into the slide rail and locked by the locking member. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0039] Figure 1 An exploded view of a medical device provided for a specific embodiment of this utility model;

[0040] Figure 2 for Figure 1 The diagram shows the bottom structure of the medical device.

[0041] Figure 3 for Figure 1 A partial structural diagram of the dust cover;

[0042] Figure 4 for Figure 1 A schematic diagram of a partial cross-sectional structure of the medical device shown.

[0043] Figure 5 for Figure 1 A schematic diagram of the front view structure of the medical device shown;

[0044] Figure 6 A three-dimensional structural diagram of a medical device provided for another specific embodiment of the present utility model;

[0045] Figure 7 for Figure 6 The exploded view of the medical equipment shown;

[0046] Figure 8 for Figure 6 The diagram shows the bottom structure of the medical device.

[0047] Figure 9 for Figure 7 A schematic diagram of the rotary locking assembly in the diagram;

[0048] Figure 10 for Figure 9 An exploded view of the rotary locking assembly shown.

[0049] Figure 11 for Figure 9 A schematic diagram of the rotary locking assembly from another perspective;

[0050] Figure 12 for Figure 7 A schematic diagram of the structure when the stop lever of the rotary locking assembly is engaged with the locking groove of the dust cover;

[0051] Figure 13 An exploded view of a gear transmission locking assembly provided for a specific embodiment of this utility model;

[0052] Figure 14 A top view of a pin-type locking assembly provided in a specific embodiment of this utility model;

[0053] Figure 15 for Figure 14 A three-dimensional structural diagram of the pin-type locking assembly shown;

[0054] Figure 16 A schematic diagram of the bottom structure of a slide rail provided in a specific embodiment of this utility model;

[0055] Figure 17 for Figure 6 A schematic diagram of the structure when the fourth elastic element on the middle slide rail engages with the limiting groove of the dust cover.

[0056] The attached figures are labeled as follows:

[0057] 1-Housing shell, 11-Heat dissipation holes, 12-Support pad;

[0058] 2-Slide rail, 21-Receiving groove, 22-Second nut, 23-Fourth elastic element, 24-Guide groove, 241-Protrusion;

[0059] 3-Dust cover, 31-Dust cover shell, 311-Limiting plate, 312-Connecting hole, 313-Hanging part, 314-First nut, 3141-Internal thread, 315-Locking groove, 316-Limiting groove, 32-Metal mesh;

[0060] 4-Locking element;

[0061] 41-Locking screw, 411-Screw cap, 412-Smooth section, 413-Threaded section;

[0062] 42-Rotary locking assembly, 421-First bracket, 4211-First support, 4212-Second support, 4213-Locking groove, 4214-Unlocking groove, 422-First rotating shaft, 4221-Lead lever, 4222-Locking shaft, 4223-Turning part, 423-First elastic element;

[0063] 43-Gear transmission locking assembly, 431-Second bracket, 432-Second rotating shaft, 433-Gear, 434-Rack;

[0064] 44-Pin locking assembly, 441-Third bracket, 442-Locking pin, 4421-First pin, 4422-Second pin, 4423-Third pin, 443-Second elastic element, 444-Drive assembly, 445-Slider, 4451-Inclined surface, 446-Third elastic element. Detailed Implementation

[0065] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0066] The core of this application's embodiments lies in providing a medical device with an easy-to-remove dust cover, which may include, but is not limited to, an endoscope light source, an endoscope main unit, and an ultrasound device.

[0067] Specifically, such as Figure 1 As shown, the medical device provided in this embodiment of the present invention includes: a housing 1, two slide rails 2, a dust cover 3, and a locking member 4. The housing 1 has a heat dissipation hole 11 at its bottom, allowing external air to enter the housing 1 and cool the heat-generating components inside. To facilitate heat dissipation, a support pad 12 is provided at the bottom of the housing 1 to elevate the bottom of the housing 1; for example, a support pad 12 can be provided at each of the four corners of the bottom of the housing 1. The two slide rails 2 are located at the bottom of the housing 1 and on both sides of the heat dissipation hole 11. The two slide rails 2 can be fixed to the bottom of the housing 1 by screws, or by other methods such as snap-fitting or welding. The dust cover 3 is slidably connected to the two slide rails 2 on both sides. When the dust cover 3 slides along the slide rails 2 to the working position, the dust cover 3 covers the heat dissipation hole 11 to isolate the heat dissipation hole 11 from the outside. Specifically, as shown... Figure 1-2 As shown, the dust cover 3 is installed over the heat dissipation hole 11. The dust cover 3 may include a dust cover shell 31 and a metal mesh 32. The dust cover shell 31 has a through hole at a position corresponding to the heat dissipation hole 11. The metal mesh 32 is fixed inside the dust cover shell 31 and sandwiched between the dust cover shell 31 and the heat dissipation hole 11 to prevent external dust from entering the interior of the housing 1 through the heat dissipation hole 11. The locking member 4 is configured to change its setting position under the action of an external tooling. The docking direction of the locking member 4 and the external tooling is parallel to the bottom of the housing 1. When the locking member 4 is in the first position, the dust cover 3 is locked in the working position. When the locking member 4 is in the second position, the dust cover 3 is unlocked and can slide relative to the slide rail 2. Thus, the position of the locking member 4 can be adjusted by the external tooling to achieve locking and unlocking of the dust cover 3.

[0068] Based on the above structure, when it is necessary to fix the dust cover 3, the locking member 4 is adjusted to the first position, and the dust cover 3 is locked at the heat dissipation hole 11 (i.e., the working position); when it is necessary to remove the dust cover 3, the locking member 4 is adjusted to the second position, and the dust cover 3 is unlocked and can slide relative to the slide rail 2. The locking member 4 changes its position under the action of external tooling, thus meeting the safety requirements of medical equipment (the dust cover also serves as a fireproof structure and cannot be disassembled by hand). Furthermore, since the docking direction of the locking component 4 and the external tooling is parallel to the bottom of the housing 1, when disassembling the dust cover 3, the external tooling can be inserted into the bottom of the housing 1 in a direction parallel to the bottom of the housing 1, docking with the locking component 4 and applying force to the locking component 4 so that the locking component 4 is in the second position. Then, the dust cover 3 can be pulled out from the slide rail 2. During the disassembly process, the housing 1 does not need to be flipped to remove the dust cover 3, which can effectively improve the convenience of disassembly. Similarly, during installation, the housing 1 does not need to be flipped. The dust cover 3 is pushed between the two slide rails 2 at the bottom of the housing 1 and then locked by the locking component 4.

[0069] For example, the two slide rails 2 can be two straight rails arranged parallel to each other, or they can be arc-shaped rails with concentric arc structures. Specifically, they can be set according to the arrangement of the heat dissipation holes 11. This application embodiment does not make specific limitations in this regard.

[0070] For example, such as Figure 3 As shown, to facilitate the application of a pulling force to the dust cover 3, a mounting part 313 is provided at one end of the dust cover 3. The mounting part 313 is used for the user's fingers or a pulling tool to apply a pulling force to the dust cover 3. The mounting part 313 can be a groove structure, a protrusion structure, or a hook structure, etc. Specifically, the mounting part 313 can be set on the front end side of the dust cover 3 along the pulling direction (i.e., the starting end when the dust cover 3 is disengaged from the slide rail 2).

[0071] In some embodiments, such as Figures 1-5As shown, a fixing part is provided on either the bottom of the housing 1 or the slide rail 2. The fixing part can be located on the bottom of the housing 1 or on the slide rail 2. The fixing part includes a threaded hole, the axis of which is parallel to the bottom of the housing 1. The dust cover 3 includes a limiting plate 311, on which a connecting hole 312 coaxial with the threaded hole is provided. The locking member 4 includes a locking screw 41, one end of which passes through the connecting hole 312 to connect or disconnect from the threaded hole. When the locking screw 41 is screwed into the threaded hole under the action of an external tooling and causes the dust cover 3 to abut against the fixing part, the locking screw 41 is in the first position (e.g., ...). Figure 4 As shown), when the locking screw 41 is screwed out and disengaged from the threaded hole by the action of the external tooling, the locking screw 41 is in the second position.

[0072] The external tooling can be a screwdriver. When it is necessary to fix the dust cover 3, the user can hold the screwdriver and align it with the locking screw 41 from the bottom of the housing 1. Then, turn the screwdriver to tighten the locking screw 41 into the threaded hole and make the dust cover 3 abut against the fixing part. At this time, the dust cover 3 can be fixed to the fixing part. When it is necessary to remove the dust cover 3, the user can hold the screwdriver and align it with the locking screw 41 from the bottom of the housing 1. Then, turn the screwdriver to unscrew the locking screw 41 and disengage it from the threaded hole. At this time, the dust cover 3 can be unlocked and then pulled outward.

[0073] It is understood that in this embodiment, the dust cover 3 can be limited in the X and Z directions by means of two slide rails 2; the dust cover 3 can be limited in the Y direction by means of a limiting plate 311 connected to a fixing part provided on the bottom of the housing 1 and either of the slide rails 2. During the process of disassembling and assembling the dust cover 3, there is no need to flip the housing 1, so the disassembly and assembly are relatively convenient and it is not easy to damage the housing 1, the structure inside the housing 1, and the structure connected to the housing 1.

[0074] In this embodiment, the fixing part is disposed at one end of the slide rail 2, and the axis of the threaded hole is parallel to the extension direction of the slide rail 2. When it is necessary to install the dust cover 3, push the dust cover 3 into the slide rail 2 until the limiting plate 311 on the dust cover 3 contacts the slide rail 2, and then pass the locking screw through the limiting plate 311 and the slide rail 2. By placing the fixing part on the slide rail 2, compared to placing the fixing part on the bottom of the housing 1, the structure on the slide rail 2 can be fully utilized, eliminating the need for an additional protruding structure on the bottom of the housing 1 to construct the fixing part, thus reducing the complexity of the connection structure and the mold opening cost.

[0075] In some embodiments, such as Figure 4As shown, the dust cover 3 also includes a first nut 314, which is fixed in the connecting hole 312 and coaxial with the connecting hole 312; the locking screw 41 is a non-removable screw; one end of the slide rail 2 is provided with a receiving groove 21, and a second nut 22 is provided in the receiving groove 21. The second nut 22 can be embedded in the receiving groove 21. The slide rail 2 can be made of plastic material. The second nut 22 is provided with a threaded hole. The limiting plate 311 is provided with a first nut 314, which is coaxial with the connecting hole 312. The first nut is provided with an internal thread 3141. The outer diameter of the first nut 314 is larger than the opening diameter of the receiving groove 21. One end face of the first nut 314 contacts the end of the slide rail 2 to limit the dust cover 3 in the Y direction. The non-removable screw includes a screw cap 411, a smooth section 412, and a threaded section 413 arranged sequentially. The smooth section 412 passes through the first nut 314 and has a clearance fit with the first nut 314. The outer diameter of the threaded section 413 is larger than the outer diameter of the smooth section 412. The smooth section 412 passes through the first nut 314 and the connecting hole 312. The threaded section 413 is connected to the threaded hole. For example... Figure 4 As shown, when the locking screw 41 is in the first position, the length A of the threaded engagement between the threaded section 413 and the threaded hole is not greater than the minimum distance B between the end face of the threaded section 413 and the end face of the first nut 314. This ensures that during disassembly, after the threaded section 413 of the locking screw 41 is unscrewed from the second nut 22 (i.e., after the dust cover 3 is released), the threaded section 413 will not enter the internal thread 3141 of the first nut 314. At this point, no matter how the external tool (e.g., a screwdriver) is rotated, the locking screw 41 cannot be removed from the first nut 314 and the connecting hole 312. Therefore, the locking screw 41 can be left on the limiting plate 311. This design prevents the locking screw 41 from being lost and facilitates reinstallation without requiring alignment with the connecting hole 312 (or the first nut 314), thus improving operational convenience.

[0076] It is understood that in some embodiments, in order to reduce costs, the first nut 314 and the second nut 22 may be omitted, and an internal thread adapted to the threaded section 413 may be formed directly in the connecting hole 312 and the receiving groove 21.

[0077] In some embodiments, such as Figures 6-12As shown, either the bottom of the housing 1 or the slide rail 2 is provided with a retaining part, that is, the retaining part can be provided at the bottom of the housing 1 or on the slide rail 2, and the locking member 4 is movably connected to the retaining part; the side of the dust cover 3 is provided with a locking groove 315; wherein, when the locking member 4 moves to the first position under the action of the external tooling, the locking member 4 engages with the locking groove 315 to fix the dust cover 3; when the locking member 4 moves to the second position under the action of the external tooling, the locking member 4 disengages from the locking groove 315 to unlock the dust cover 3, at which time the dust cover 3 can be pulled outward.

[0078] In some embodiments, such as Figures 6-12 As shown, the retaining part and the locking member 4 cooperate with each other to form a rotary locking assembly 42. The retaining part includes a first bracket 421, which is connected to the bottom of the housing 1 and can be fixed, for example, by screws. The locking member 4 includes a first rotating shaft 422 and a stop bar 4221 provided on the side wall of the first rotating shaft 422. The two ends of the first rotating shaft 422 are rotatably connected to the first bracket 421. One end of the first rotating shaft 422 is provided with a screwing part 4223, which is exposed outside the first bracket 421 to dock with an external tooling. When it is necessary to fix the dust cover 3, the user can rotate the first rotating shaft 422 through the external tool. When the first rotating shaft 422 is rotated to the first position, the head of the stop lever 4221 is inserted into the locking groove 315. When it is necessary to disassemble, the user can rotate the first rotating shaft 422 in the opposite direction. When the first rotating shaft 422 is rotated to the second position, the head of the stop lever 4221 moves out of the locking groove 315. At this time, the dust cover 3 is unlocked. Pull the dust cover 3 outward horizontally and disengage it from the slide rail 2.

[0079] The screwing portion 4223 of the first rotating shaft 422 is exposed outside the first bracket 421. "Exposed" here means that the screwing portion 4223 can extend out of the first bracket 421 or be located inside the first bracket 421. When located inside the first bracket 421, the first bracket 421 should have a channel for a tool to enter, facilitating connection with the screwing portion 4223. Specifically, the screwing portion 4223 of the first rotating shaft 422 can be any structure that facilitates rotation, such as a hexagonal groove. The user can insert a hexagonal prism tool into the hexagonal groove and rotate the hexagonal prism tool to screw the first rotating shaft 422.

[0080] In some embodiments, the retaining part further includes a first elastic member 423, and the locking member 4 further includes a locking shaft 4222 disposed on the side wall of the first rotating shaft 422. The locking shaft 4222 and the stop lever 4221 are spaced apart in both the axial and circumferential directions. For example, the axis of the stop lever 4221 is perpendicular to the axis of the first rotating shaft 422, and the axis of the locking shaft 4222 is also perpendicular to the axis of the first rotating shaft 422. The axes of the stop lever 4221 and the locking shaft 4222 intersect the axis of the first rotating shaft 422 at different positions, and there is a preset included angle between the axes of the stop lever 4221 and the locking shaft 4222. This included angle can be a right angle, an acute angle, or an obtuse angle. It is understood that the spaced-apart arrangement of the locking shaft 4222 and the stop lever 4221 in both the axial and circumferential directions can reduce motion interference and make the structure more compact. In other embodiments, the locking shaft 4222 and the stop lever 4221 may also be spaced apart only in the axial or circumferential directions.

[0081] The first bracket 421 is provided with a locking groove 4213 and an unlocking groove 4214 that are interconnected. When the first rotating shaft 422 is in the first position, the locking shaft 4222 is engaged in the locking groove 4213 under the action of the first elastic member 423. When the first rotating shaft 422 is in the second position, the locking shaft 4222 is engaged in the unlocking groove 4214 under the action of the first elastic member 423. For example, the first bracket 421 includes a first support 4211 and a second support 4212. The first support 4211 has a blind hole, and the second support 4212 has a through hole. The axes of the through hole and the blind hole are coaxial. One end of the first rotating shaft 422 with a screwing part 4223 is located in the through hole, and the other end of the first rotating shaft 422 is located in the blind hole. A first elastic element 423 is provided between the inner end face of the blind hole and the end of the first rotating shaft 422. The second support 4212 has a locking groove 4213 and an unlocking groove 4214 that are interconnected. Under the elastic force of the first elastic element 423, the first rotating shaft 422 locks... The fixed shaft 4222 is pressed against the locking groove 4213, while the first rotating shaft 422 is in the first position. At this time, the stop lever 4221 is engaged in the locking groove 315 of the dust cover 3. When the first rotating shaft 422 is subjected to an axial thrust toward the first support 4211, the locking shaft 4222 is pushed out of the locking groove 4213. When the first rotating shaft 422 rotates to the second position, the locking shaft 4222 is opposite to the unlocking groove 4214. When the first rotating shaft 422 loses the axial thrust toward the first support 4211, under the elastic force of the first elastic element 423, the locking shaft 4222 is pressed against the unlocking groove 4214. Through the first elastic element 423, the locking groove 4213, and the unlocking groove 4214, the stability of the first rotating shaft 422 in the locked or unlocked position can be achieved, preventing the first rotating shaft 422 from rotating arbitrarily and causing inconvenience to the user.

[0082] In some embodiments, such as Figure 13As shown, the retaining part and the locking member 4 cooperate to form a gear transmission locking assembly 43. The retaining part includes a second bracket 431, and the locking member 4 includes a second rotating shaft 432, a gear 433, and a rack 434. The second bracket 431 is connected to the bottom of the housing 1, for example, by screws. The two ends of the second rotating shaft 432 are rotatably connected to the second bracket 431. The gear 433 is disposed on the second rotating shaft 432, and the rack 434 is movably connected to the second bracket 431. The rack 434 and the gear 433 mesh, and the rack 434 can move relative to the second bracket 431. When it is necessary to fix the dust cover 3, the second rotating shaft 432 rotates to the first position under the action of the external tooling, and one end of the rack 434 is engaged in the locking groove 315. When it is necessary to unlock the dust cover 3, the second rotating shaft 432 rotates to the second position under the action of the external tooling, and one end of the rack 434 is disengaged from the locking groove 315. To facilitate the screwing of the second rotating shaft 432, a screwing part 4223 can be provided at one end of the second rotating shaft 432 exposed on the second bracket 431. The screwing part 4223 can be a slot. The second bracket 431 has a channel, and one end of the second rotating shaft 432 is located in the channel. A screwdriver can pass through the channel to engage with the second rotating shaft 432, thereby enabling the rotation of the second rotating shaft 432. By setting the screwing part 4223 of the second rotating shaft 432 inside the bracket, the user can avoid disassembling it by hand.

[0083] In some embodiments, such as Figure 14 and 15 As shown, the retaining part and the locking member 4 cooperate to form a pin-type locking assembly 44. The retaining part includes a third bracket 441, a second elastic member 443, and a driving assembly 444. The locking member 4 includes a locking pin 442. The third bracket 441 is connected to the bottom of the housing 1, for example, by fixing it with screws. The locking pin 442 is movably connected to the third bracket 441. The two ends of the second elastic member 443 abut against the third bracket 441 and the locking pin 442, respectively. In its natural state, the locking pin 442 is engaged in the locking groove 315 and is held in the first position by the elastic force of the second elastic member 443. The second elastic member 443 can improve the stability of the engagement. When it is necessary to remove the dust cover 3, under the action of the external tooling, the driving assembly 444 can drive the locking pin 442 out of the locking groove 315 so that the locking pin 442 returns to the second position, and then the dust cover 3 can be pulled out between the two slide rails 2.

[0084] In some embodiments, the locking pin 442 is a U-shaped pin, comprising a first pin 4421, a second pin 4422, and a third pin 4423. The first pin 4421 and the second pin 4422 are arranged parallel to each other. The length of the first pin 4421 may be greater than that of the second pin 4422. Both ends of the third pin 4423 are connected to the first pin 4421 and the second pin 4422. Both the first pin 4421 and the second pin 4422 are movably connected to the third pin. The frame 441 has two ends of the second elastic element 443 abutting against the first pin 4421 and the third bracket 441 respectively. The first pin 4421 extends out of the third bracket 441 under the elastic force of the second elastic element 443. The drive assembly 444 includes a slider 445 and a third elastic element 446. The slider 445 is movably connected to the third bracket 441, and its two ends abut against the third bracket 441 and the third elastic element 446 respectively. The slider 445 is provided with an inclined surface 4451. The end of pin 4422 contacts inclined surface 4451. Slider 445, under the elastic force of third elastic element 446, abuts against third bracket 441. First pin 4421, under the elastic force of second elastic element 443, remains in the first position, engaging in locking groove 315, thus fixing dust cover 3. The second elastic element 443 and third elastic element 446 are preferably axially extendable springs. When dust cover 3 needs to be disassembled, slider 445, pushed by external tooling, moves along the inclined surface... The surface 4451 pushes the second pin 4422 to move. The direction of movement of the second pin 4422 is perpendicular to the direction of movement of the slider 445. When the second pin 4422 moves, the first pin 4421 can be moved synchronously through the third pin 4423. Therefore, the slider 445 can drive the first pin 4421 to retract to the second position so as to exit from the locking groove 315. At this time, the locking effect between the first pin 4421 and the dust cover 3 can be released. Then, the dust cover 3 can be pulled outward.

[0085] In some embodiments, such as Figure 16 As shown, each of the two slide rails 2 has a guide groove 24 on its side. The dust cover 3 is slidably connected to the guide groove 24 on both sides. The guide groove 24 can limit the dust cover 3 in the Z direction (i.e., the direction perpendicular to the bottom of the housing 1). Exemplarily, each slide rail 2 has a guide groove 24 on both sides. When one guide groove 24 is worn, the guide groove 24 on the other side of the slide rail 2 can be replaced, thereby maximizing the utilization rate of the slide rail 2. In other embodiments, the guide groove 24 can be provided only on one side of the slide rail 2, as long as the guide groove 24 is compatible with the side of the dust cover 3 to achieve a sliding connection between the two.

[0086] For example, such as Figure 16As shown, the slide rail 2 has a stepped protrusion on its surface facing the bottom of the housing 1. After the stepped protrusion is fixed to the bottom of the housing 1, guide grooves 24 are formed on both sides of the stepped protrusion. In other words, the guide grooves 24 formed on the slide rail 2 can be semi-open grooves, which, together with the bottom of the housing 1, limit the dust cover 3 in the Z direction.

[0087] In some embodiments, in a direction perpendicular to the bottom of the housing 1, a protrusion 241 is provided on the side wall of the guide groove 24 facing the dust cover 3. The protrusion 241 abuts against the dust cover 3. The protrusion 241 can be provided on one side of the upper or lower surface of the guide groove 24. The protrusion 241 is used to contact the upper or lower surface of the dust cover 3. Multiple protrusions 241 distributed along the length direction can be provided in the guide groove 24. The protrusion 241 is preferably arc-shaped. For example, when the bottom of one side of the slide rail 2 is provided with the guide groove 24, the inner top surface of the guide groove 24 faces the upper surface of the side of the dust cover 3. A protrusion 241 can be provided on the inner top surface of the guide groove 24. By having the protrusion 241 contact the dust cover 3, the gap between the dust cover 3 and the guide groove 24 can be avoided from causing the dust cover 3 to shake after installation.

[0088] In some embodiments, such as Figure 17 As shown, the dust cover 3 has a limiting groove 316 on its side and a fourth elastic element 23 on the slide rail 2. For example, multiple limiting grooves 316 can be provided on both sides of the dust cover 3, and multiple fourth elastic elements 23 distributed along their length can be provided on the two slide rails 2. The fourth elastic elements 23 can correspond one-to-one with the limiting grooves 316. When the dust cover 3 moves to the working position, it is engaged in the limiting grooves 316. The fourth elastic element 23 can retract into the slide rail 2 under the squeezing action of the side of the dust cover 3 without limiting grooves 316 when the dust cover 3 is pushed and pulled. The fourth elastic element 23 is preferably a spring sheet. The two ends of the spring sheet are connected to the slide rail 2, and the middle of the spring sheet has an arc-shaped protrusion extending into the slide rail 2 to facilitate pushing and pulling the dust cover 3. By abutting against the dust cover 3 with the fourth elastic element 23, the influence caused by the gap between the dust cover 3 and the slide rail 2 can be reduced, thereby ensuring the installation stability of the dust cover 3.

[0089] In some embodiments, the housing 1 includes a wall portion with a cable interface for connecting a cable. The locking member 4 is positioned such that an external tooling extends into the bottom of the housing 1 from a side other than the side where the wall portion is located to apply force to the locking member 4. That is, the side where the cable interface is located and the side where the external tooling extends are different sides. For example, when the side where the cable interface is located is the rear side of the housing 1, the side of the locking member 4 for the external tooling to engage with the housing 1 can be the left, right, or front. With the above layout, interference from the cable to the extension of the external tooling and the removal of the dust cover 3 can be avoided, facilitating the user's operation of extending the external tooling into the bottom of the housing 1 and engaging with the locking member 4.

[0090] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0091] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0092] The medical device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A medical device, characterized in that, include: The housing (1) has heat dissipation holes (11) at its bottom. Two slide rails (2) are fixed to the bottom of the housing (1); the heat dissipation hole (11) is located between the two slide rails (2); Dust cover (3), the dust cover (3) is slidably connected to the two slide rails (2), when the dust cover (3) slides along the slide rails (2) to the working position, the dust cover (3) covers the heat dissipation hole (11) so that the heat dissipation hole (11) is isolated from the outside; The locking member (4) is configured to change its position under the action of the external tooling. The docking direction of the locking member (4) and the external tooling is parallel to the bottom of the housing (1). When the locking member (4) is in the first position, the dust cover (3) is locked in the working position. When the locking member (4) is in the second position, the dust cover (3) is unlocked and can slide relative to the slide rail (2).

2. The medical device according to claim 1, characterized in that, A fixing part is provided on the bottom of the housing (1) and the slide rail (2), the fixing part including a threaded hole, the axis of the threaded hole being parallel to the bottom of the housing (1); The dust cover (3) includes a limiting plate (311), and the limiting plate (311) is provided with a connecting hole (312) coaxial with the threaded hole. The locking member (4) includes a locking screw (41), one end of which passes through the connecting hole (312) to connect or disconnect from the threaded hole; When the locking screw (41) is screwed into the threaded hole under the action of the external tooling and the dust cover (3) abuts against the fixing part, the locking screw (41) is in the first position. When the locking screw (41) is screwed out and disengaged from the threaded hole under the action of the external tooling, the locking screw (41) is in the second position.

3. The medical device according to claim 2, characterized in that, The fixing part is disposed at one end of the slide rail (2), and the axis of the threaded hole is parallel to the extension direction of the slide rail (2).

4. The medical device according to claim 2, characterized in that, The dust cover (3) also includes a first nut (314), which is fixed in the connecting hole and coaxial with the connecting hole (312); The locking screw (41) includes a screw cap (411), a smooth rod section (412) and a threaded section (413) arranged in sequence. The outer diameter of the threaded section (413) is larger than the outer diameter of the smooth rod section (412). The smooth rod section (412) passes through the first nut (314) and is clearance-fitted with the first nut (314). When the locking screw (41) is in the first position, the length of the threaded section (413) and the threaded hole that engages in the threaded connection is not greater than the minimum distance between the threaded section (413) and the first nut (314).

5. The medical device according to claim 1, characterized in that, The bottom of the housing (1) and either the slide rail (2) are provided with a retaining part, and the locking member (4) is movably connected to the retaining part; the side of the dust cover (3) is provided with a locking groove (315). When the locking member (4) moves to the first position under the action of the external tooling, the locking member (4) engages with the locking groove (315); when the locking member (4) moves to the second position under the action of the external tooling, the locking member (4) disengages from the locking groove (315).

6. The medical device according to claim 5, characterized in that, The retaining part includes a first bracket (421), and the locking member (4) includes a first rotating shaft (422) and a stop bar (4221) provided on the side wall of the first rotating shaft (422). The two ends of the first rotating shaft (422) are rotatably connected to the first bracket (421). One end of the first rotating shaft (422) is provided with a screwing part (4223), which is exposed outside the first bracket (421) to dock with the external tooling. When the first rotating shaft (422) is rotated to the first position, the head of the stop lever (4221) is engaged in the locking groove (315). When the first rotating shaft (422) is rotated to the second position, the head of the stop lever (4221) is moved out of the locking groove (315).

7. The medical device according to claim 6, characterized in that, The retaining part further includes a first elastic element (423), and the locking element (4) further includes a locking shaft (4222) disposed on the side wall of the first rotating shaft (422). The locking shaft (4222) and the stop bar (4221) are spaced apart in the axial and / or circumferential directions. The first bracket (421) is provided with a locking groove (4213) and an unlocking groove (4214) that communicate with each other. When the first rotating shaft (422) is in the first position, the locking shaft (4222) is engaged in the locking groove (4213) under the action of the first elastic element (423). When the first rotating shaft (422) is in the second position, the locking shaft (4222) is engaged in the unlocking groove (4214) under the action of the first elastic element (423).

8. The medical device according to claim 5, characterized in that, The retaining part includes a second bracket (431), and the locking member (4) includes a second rotating shaft (432), a gear (433) and a rack (434). The two ends of the second rotating shaft (432) are rotatably connected to the second bracket (431). The gear (433) is disposed on the second rotating shaft (432). The rack (434) meshes with the gear (433), and the rack (434) can move relative to the second bracket (431). When the second rotating shaft (432) rotates to the first position under the action of the external tooling, one end of the rack (434) is engaged in the locking groove (315), and when the second rotating shaft (432) rotates to the second position under the action of the external tooling, one end of the rack (434) is disengaged from the locking groove (315).

9. The medical device according to claim 5, characterized in that, The retaining part includes a third bracket (441), a second elastic member (443), and a drive assembly (444). The locking member (4) includes a locking pin (442), which is movably connected to the third bracket (441). The two ends of the second elastic member (443) abut against the third bracket (441) and the locking pin (442) respectively. In its natural state, the locking pin (442) is engaged in the locking groove (315) and held in the first position under the elastic force of the second elastic member (443). Under the action of the external tooling, the driving assembly (444) drives the locking pin (442) to exit from the locking groove (315) so that the locking pin (442) returns to the second position.

10. The medical device according to claim 9, characterized in that, The locking pin (442) is a U-shaped pin, and the locking pin (442) includes a first pin (4421), a second pin (4422) and a third pin (4423). The first pin (4421) and the second pin (4422) are arranged parallel to each other. The two ends of the third pin (4423) are connected to the first pin (4421) and the second pin (4422). The first pin (4421) and the second pin (4422) are movably connected to the third bracket (441). The two ends of the second elastic member (443) abut against the first pin (4421) and the third bracket (441) respectively. The drive assembly (444) includes a slider (445) and a third elastic element (446). The slider (445) is movably connected to the third bracket (441). Both ends of the slider (445) abut against the third bracket (441) and the third elastic element (446) respectively. The slider (445) is provided with an inclined surface (4451). The end of the second pin (4422) contacts the inclined surface (4451). The slider (445) is pressed against the third bracket (441) under the elastic force of the third elastic element (446). The first pin (4421) is held in the first position under the elastic force of the second elastic element (443). Under the push of the external tooling, the slider (445) pushes the second pin (4422) to move through the inclined surface (4451) to drive the first pin (4421) back to the second position.

11. The medical device according to any one of claims 1 to 10, characterized in that, The two slide rails (2) are respectively provided with guide grooves (24) on their sides, and the two sides of the dust cover (3) are slidably connected to the guide grooves (24).

12. The medical device according to claim 11, characterized in that, In a direction perpendicular to the bottom of the housing (1), the guide groove (24) has a protrusion (241) facing the side wall of the dust cover (3), and the protrusion (241) abuts against the dust cover (3).

13. The medical device according to any one of claims 1 to 10, characterized in that, The dust cover (3) has a limiting groove (316) on its side and a fourth elastic element (23) on the slide rail (2). The fourth elastic element (23) is used to engage in the limiting groove (316) when the dust cover (3) moves to the working position. The fourth elastic element (23) can retract into the slide rail (2) under the squeezing action of the side of the dust cover (3) where the limiting groove (316) is not provided when the dust cover (3) is pushed and pulled.

14. The medical device according to any one of claims 1 to 10, characterized in that, One end of the dust cover (3) is provided with a mounting part (313), which is used for the user or a pull-out tool to apply a pulling force to the dust cover (3).

15. The medical device according to any one of claims 1 to 10, characterized in that, The housing (1) includes a wall portion with a cable interface, and the locking member (4) is positioned such that the external tooling extends into the bottom of the housing (1) from a side other than the side where the wall portion is located to apply force to the locking member (4).

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