Mobile trolley and mobile perfusion medical device

Abstract

The present application relates to the technical field of medical devices, and discloses a mobile trolley and a mobile perfusion medical device. The mobile trolley comprises a base, a locking jaw assembly and a pedal. The locking jaw assembly comprises a locking piece, a first elastic piece and a rotating seat. The rotating seat is rotatably connected to the base. The rotating seat has a mounting cavity. The locking piece comprises a connecting portion and a locking portion which are connected to each other. The connecting portion is movably arranged in the mounting cavity. The connecting portion and the locking portion are movable relative to the rotating seat under the action of a driving force and compress the first elastic piece. The first elastic piece is located in the mounting cavity and connected to the rotating seat and the connecting portion at two ends in a first direction, respectively. The locking portion is located outside the mounting cavity. The pedal is connected to the rotating seat. The rotating seat is driven by the pedal to rotate the first elastic piece and the locking piece. The mobile trolley can improve the assembly efficiency of the medical device main body and the mobile trolley and improve the use convenience of the mobile perfusion medical device. The mobile perfusion medical device with the above mobile trolley also has the above advantages.

Description

Technical Field

[0001] This invention relates to the technical field of medical devices, and more particularly to a mobile cart and a mobile infusion medical device. Background Technology

[0002] In related technologies, medical devices are often equipped with mobile carts to improve their ease of use. However, the assembly and disassembly of the medical device and the mobile cart are relatively complex, resulting in low assembly efficiency and affecting the ease of use of the mobile infusion medical device. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a mobile cart that can improve the assembly efficiency of the medical device body and the mobile cart, and improve the ease of use of the mobile perfusion medical device.

[0004] The present invention also proposes a mobile perfusion medical device having the aforementioned mobile cart.

[0005] A mobile trolley according to a first aspect of the present invention includes a base, a locking clamp assembly, and a pedal.

[0006] The base has a bearing surface on the third-party side, which is used to support the main body of the medical device; The locking clamp assembly includes a locking member, a first elastic member, and a rotating seat. The rotating seat is rotatably connected to the base and has a mounting cavity. The locking member includes a connecting portion and a locking portion connected together. The connecting portion is movably disposed in the mounting cavity. The connecting portion and the locking portion are driven to move relative to the rotating seat and compress the first elastic member. The first elastic member is located in the mounting cavity. The two ends of the first elastic member along the first direction are respectively connected to the rotating seat and the connecting portion. The locking portion is located outside the mounting cavity and is used to fix the main body of the medical device. The pedal is connected to the rotating seat; The rotating seat and the base have their rotation axes parallel to the second direction. The rotating seat is driven by the pedal and can drive the first elastic member and the locking member to rotate relative to the base around the rotation axis, so that the locking part is separated from the main body of the medical device.

[0007] The mobile trolley according to embodiments of the present invention has at least the following beneficial effects: By providing a locking member, during the assembly of the medical device body, the medical device body can abut against the locking part, and the first elastic member is compressed by the connecting part, thereby achieving assembly with the base. Furthermore, when disassembling the medical device body and the base, the locking clamp assembly can be rotated by driving the pedal, causing the locking part and the medical device body to separate, thus achieving separation of the medical device body and the base. This improves the assembly efficiency of the medical device body and the mobile trolley, and enhances the ease of use of the mobile infusion medical device.

[0008] According to some embodiments of the present invention, the mobile trolley includes two locking assemblies, the two locking assemblies being located on both sides of the base along the first direction, and the main body of the medical device being disposed between the two locking portions; The mobile trolley also includes a linkage assembly located between the two rotating seats along the first direction and connected to the two rotating seats. The pedal is connected to one of the rotating seats and drives the other rotating seat to move through the linkage assembly. The two rotating seats are driven by the pedal to rotate around the rotation axis, and the rotation directions of the two locking parts are opposite.

[0009] According to some embodiments of the present invention, the linkage assembly includes a reversing member, a tension rod, and a push rod. The reversing member is rotatably connected to the base and has opposing first and second ends along the third direction. The rotation center of the reversing member and the base is located between the first and second ends along the third direction. The push rod is connected to the first end and the rotating seat near the pedal. The tension rod is connected to the second end and the rotating seat away from the pedal. The tension rod and the push rod are driven by the pedal to move along the first direction, and the directions of movement of the tension rod and the push rod are opposite.

[0010] According to some embodiments of the present invention, the linkage assembly further includes a tension spring, the two ends of which are respectively connected to the base and the tension rod along the first direction, and the tension spring is stretched by the tension rod.

[0011] According to some embodiments of the present invention, the mobile trolley further includes a positioning component, the positioning component including a positioning block, a sliding block and a limiting rod, the positioning block being connected to the base, the positioning block having a positioning groove, the positioning groove being a conductor to the end of the positioning block along the first direction, a portion of the sliding block being movably disposed in the positioning groove, the side of the sliding block facing away from the positioning block along the first direction being connected to the rotating seat, the sliding block having a sliding groove, one end of the limiting rod being rotatably connected to the positioning block, and the other end being movably disposed in the sliding groove; The sliding groove has a first positioning wall and a second positioning wall spaced apart along the first direction. The locking part has a release position and a locking position. In the locking position, the end of the limiting rod abuts against the first positioning wall, and the locking part fixes the main body of the medical device. In the release position, the end of the limiting rod abuts against the second positioning wall, and the locking part separates from the main body of the medical device.

[0012] According to some embodiments of the present invention, the sliding groove further includes a third positioning wall and a fourth positioning wall connected to each other. The third positioning wall and the fourth positioning wall are located on the side of the second positioning wall opposite to the first positioning wall along the first direction. The third positioning wall and the fourth positioning wall are spaced apart from the second positioning wall along the first direction and are respectively located on both sides of the second positioning wall along the second direction. The locking part has a first limit position and a second limit position. In the first limit position, the end of the limiting rod abuts against the third positioning wall; in the second limit position, the end of the limiting rod abuts against the fourth positioning wall.

[0013] According to some embodiments of the present invention, the mobile trolley further includes a lifting assembly, which is spaced apart from the rotating seat along the second direction; The lifting assembly includes a first swing arm, a second swing arm, a support arm, and a transmission rod located at the bottom of the base along the third direction. The first swing arm is rotatably connected to one end of the base along the first direction, and the support arm is located at the other end of the base along the first direction. The second swing arm includes a third end and a fourth end opposite to each other. The third end is rotatably connected to the support arm, and the fourth end includes a first connection position and a second connection position. The first connection position is rotatably connected to the base, and the two ends of the transmission rod are respectively rotatably connected to the second connection position and the first swing arm. The first swing arm has a swing state and a fixed state. In the swing state, the first swing arm can rotate relative to the base, causing the transmission rod to move along the third direction and changing the height of the first connection position of the second swing arm along the third direction. In the fixed state, the first swing arm and the second swing arm are relatively fixed.

[0014] According to some embodiments of the present invention, the lifting assembly further includes a telescopic arm, the telescopic arm and the support arm are located at the same end of the base along the first direction, the telescopic arm is telescopically connected to the side of the support arm facing the base along the third direction, in the swing state, the first swing arm can rotate relative to the base, so that the telescopic arm can extend and retract along the third direction; in the fixed state, the first swing arm, the second swing arm and the telescopic arm are relatively fixed.

[0015] According to some embodiments of the present invention, the lifting assembly further includes a limiting member, which is detachably connected to the first swing arm. The first swing arm has a first limiting hole and a second limiting hole that are separated from each other. In the fixed state, the limiting member passes through the first limiting hole or the second limiting hole and is connected to the base. In the swinging state, the limiting member is connected to the base and is separated from the first limiting hole and the second limiting hole.

[0016] According to some embodiments of the present invention, the limiting member includes a limiting block, a limiting portion, a protrusion, and a second elastic member. The limiting block is connected to the base and has a communicating mounting groove and a limiting groove. The second elastic member and at least a portion of the limiting portion are movably disposed in the mounting groove. The protrusion is connected to the peripheral wall of the limiting portion and is located in the mounting groove. One end of the second elastic member abuts against the side of the protrusion facing away from the first swing arm, and the other end abuts against the inner wall of the mounting groove. In the swinging state, the protrusion abuts against the inner wall of the limiting groove.

[0017] According to some embodiments of the present invention, the mobile vehicle further includes a fixing component, which includes a fixing block, a movable block, a fixing post, and a fixing button. The fixing block is connected to the base and has a fixing groove. The movable block is movably disposed in the fixing groove. The fixing post is connected to the side of the movable block facing away from the base. The fixing button is connected to the movable block. The movable block is driven by the fixing button to move the fixing post along the third direction. The fixing post is adapted to connect to a fixing slot on the ground.

[0018] According to some embodiments of the present invention, the movable block has a movable groove inside, and the fixing component further includes a fixing member and a third elastic member. The third elastic member is located in the fixing groove, and the two ends of the third elastic member along the third direction respectively abut against the inner wall of the fixing groove and the movable block, and are pressed against the movable block and the inner wall of the fixing groove. One end of the fastener is rotatably connected to the fixing block, and the other end passes through the movable groove. The movable groove has a first fixing wall and a second fixing wall, which are spaced apart along the third direction. The fixing column has an extended position and a retracted position. In the retracted position, the fixing column abuts against the first fixing wall, and in the extended position, the fixing column abuts against the second fixing wall.

[0019] According to some embodiments of the present invention, the movable groove further includes a third fixed wall and a fourth fixed wall, the third fixed wall and the fourth fixed wall being located on the side of the second fixed wall opposite to the first fixed wall along the third direction, and respectively located on both sides of the second fixed wall along the second direction; The fixing column also has a third limit position and a fourth limit position. In the third limit position, the fixing column abuts against the third fixing wall; in the fourth limit position, the fixing column abuts against the fourth fixing wall.

[0020] A mobile perfusion medical device according to a second aspect embodiment of the present invention includes a medical device body and a mobile trolley as described in any of the above embodiments. The medical device body is located on the bearing surface of the base along the third direction and is connected to the locking portion.

[0021] According to some embodiments of the present invention, the medical device body includes a hook portion connected to the side of the medical device body facing the base, the hook portion being connected to the locking portion, and the orthographic projection of the locking portion covering a portion of the orthographic projection of the hook portion along the third direction on a plane perpendicular to the third direction.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the mobile vehicle in an embodiment of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the base and locking clamp assembly in an embodiment of the present invention; Figure 3 This is a schematic diagram of the assembly structure of the base, locking clamp assembly, and connecting rod assembly in an embodiment of the present invention; Figure 4 This is a schematic diagram of the positioning component in an embodiment of the present invention; Figure 5 This is a schematic diagram of the positioning component from another perspective in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the mobile trolley at one of the heights in an embodiment of the present invention; Figure 7 This is a schematic diagram of the mobile trolley at another height in an embodiment of the present invention; Figure 8 This is a partial structural diagram of the mobile vehicle at one of the heights in an embodiment of the present invention; Figure 9 This is a partial structural diagram of the mobile trolley at another height in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the limiting member in an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the fixing component in an embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the fixing component and the fixing bayonet in an embodiment of the present invention; Figure 13 This is a schematic diagram of the structure of the mobile perfusion medical device in an embodiment of the present invention.

[0024] Figure label: 10 mobile perfusion medical devices; 100 mobile carts; Base 110; Locking clamp assembly 120; locking member 121; connecting part 1211; locking part 1212; first elastic member 122; rotating seat 123; mounting cavity 1231; 130 scooter pedals; Linkage assembly 140; deflector 141; first end 1411; second end 1412; tension rod 142; push rod 143; tension spring 144; Positioning component 150; positioning block 151; positioning groove 1511; sliding block 152; sliding groove 1521; first positioning wall 1522; second positioning wall 1523; third positioning wall 1524; fourth positioning wall 1525; limit rod 153; blocking part 154; stop screw 155; Lifting assembly 160; First swing arm 161; First limiting hole 1611; Second limiting hole 1612; Second swing arm 162; Third end 1621; Fourth end 1622; First connecting position 1623; Second connecting position 1624; Support arm 163; Transmission rod 164; Telescopic arm 165; Limiting component 166; Limiting block 1661; Mounting groove 1662; Limiting groove 1663; Limiting part 1664; Protrusion 1665; Second elastic component 1666; Buffer component 167; Fixed component 170; fixed block 171; fixed groove 1711; movable block 172; movable groove 1721; first fixed wall 1722; second fixed wall 1723; third fixed wall 1724; fourth fixed wall 1725; fixed post 173; fixed button 174; fastener 175; third elastic element 176; Fixed bayonet 180; Medical equipment body 200; Hook portion 210. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0027] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0028] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0029] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The following is with reference to the accompanying drawings in the instruction manual. Figures 1 to 13 This paper describes a mobile cart 100 according to a first aspect embodiment and a mobile perfusion medical device 10 according to a second aspect embodiment of the present invention. The mobile cart 100 and the mobile perfusion medical device 10 have mutually perpendicular first, second, and third directions. It should be noted that, for ease of description and understanding, the embodiments of the present invention are illustrated with the left-right direction as the first direction, the front-back direction as the second direction, and the up-down direction as the third direction.

[0031] A first aspect of the present invention provides a mobile vehicle 100, see below. Figures 1 to 3 ,as well as Figure 13 The mobile cart 100 includes a base 110, a clamp assembly 120, and a pedal 130. The base 110 has a bearing surface along a third direction for placing and fixing the medical device body 200. The clamp assembly 120 includes a locking member 121, a first elastic member 122, and a rotating seat 123. The rotating seat 123 is rotatably connected to the base 110 and has a mounting cavity 1231 inside. The locking member 121 includes a connecting portion 1211 and a locking portion 1212 that are interconnected. The connecting portion 1211 and the first elastic member 122 are located within the mounting cavity 1231, and the connecting portion 1211 can move in the left-right direction relative to the rotating seat 123 within the mounting cavity 1231. The two ends of the first elastic member 122 along the left-right direction are respectively connected to the rotating seat 123 and the connecting portion 1211. The locking portion 1212 is located outside the mounting cavity 1231 and is used to fix the medical device body 200.

[0032] The pedal 130 is connected to the rotating seat 123. The rotation axes of the rotating seat 123 and the base 110 are parallel to the front-back direction. The rotating seat 123 is driven by the pedal 130. When the pedal 130 moves, the rotating seat 123 will rotate around the rotation axis under the drive of the pedal 130, and the rotating seat 123 will drive the first elastic element 122 and the locking element 121 to rotate, so that the locking part 1212 separates from the medical device body 200, realizing the separation of the medical device body 200 and the base 110.

[0033] In one example, see Figure 2 The locking part 1212 has a hook-shaped structure. This hook-shaped structure is located on the side of the locking part 1212 facing away from the first elastic member 122 in the left-right direction. When the medical device body 200 is assembled onto the base 110, the hook-shaped structure of the locking part 1212 secures the medical device body 200. The locking part 1212 has a released position and a locked position. (See reference...) Figure 2 When the locking part 1212 is in the locked position, it secures the medical device body 200, preventing it from separating from the base 110. (See reference...) Figure 3 With the locking part 1212 in the released position, the main body 200 of the medical device can be separated from the base 110.

[0034] Specifically, when the medical device body 200 and the mobile cart 100 are assembled, during the process of placing the medical device body 200 on the base 110, the medical device body 200 will come into contact with the locking part 1212. The medical device body 200 will abut against the hook-shaped structure of the locking part 1212 and push the locking member 121 towards the first elastic member 122, so that the connecting part 1211 squeezes the first elastic member 122 in the left and right direction, so that there is enough space on the base 110 to place the medical device body 200. After the medical device body 200 is placed on the base 110, the first elastic member 122 is in a compressed state. The first elastic member 122 will apply a reaction force to the connecting part 1211 of the locking member 121, so that the locking part 1212 abuts against the medical device body 200 to fix the medical device body 200. When the medical device body 200 and base 110 need to be disassembled, the drive pedal 130 (e.g., by human foot pressure) causes relative rotation between the rotating seat 123 and the base 110. The rotating seat 123 drives the locking part 1212 to rotate away from the medical device body 200. For example, if the medical device body 200 is to the left of the locking part 1212, the rotating seat 123 will drive the locking part 1212 to rotate to the right (clockwise), separating the locking part 1212 from the medical device body 200. At this time, the medical device body 200 can be detached from the base 110, thus achieving the disassembly of the mobile cart 100 and the medical device body 200. After releasing the pedal 130, the pedal 130 can automatically reset or reset under external force (e.g., manual lifting), causing the locking part 1212 to return to the locked position.

[0035] In this embodiment of the invention, the mobile trolley 100, by providing a locking member 121, allows the medical device body 200 to abut against the locking part 1212 during assembly, and compresses the first elastic member 122 through the connecting part 1211, thereby achieving assembly with the base 110. When disassembling the medical device body 200 and the base 110, the driving pedal 130 can rotate the clamp assembly 120, causing the locking part 1212 to separate from the medical device body 200, thus separating the medical device body 200 from the base 110. This improves the assembly efficiency of the medical device body 200 and the mobile trolley 100, and enhances the ease of use of the mobile infusion medical device 10.

[0036] See Figure 3In some embodiments, the mobile cart 100 includes two clamping assemblies 120 located on either side of the base 110 in the left-right direction. When the medical device body 200 is assembled onto the base 110, the two clamping assemblies 120 are positioned on either side of the medical device body 200 in the left-right direction to jointly secure the medical device body 200. The mobile cart 100 also includes a linkage assembly 140 located between and connected to two rotating seats 123 in the left-right direction. A pedal 130 is connected to one of the rotating seats 123, and the pedal 130 drives the other rotating seat 123 to move via the linkage assembly 140, causing the locking portions 1212 of the two clamping assemblies 120 to switch together between a released position and a locked position. When the pedal 130 is driven, the rotating seats 123 of the two clamping assemblies 120 rotate around a rotation axis, causing the locking portions 1212 to rotate. The two locking portions 1212 rotate in opposite directions.

[0037] In a specific embodiment, when the pedal 130 is pressed to rotate the rotating seat 123, the two locking parts 1212 rotate in opposite directions. For example, when switching from the locked position to the released position, the locking part 1212 away from the pedal 130 rotates to the left (counterclockwise), and the locking part 1212 near the pedal 130 rotates to the right (clockwise), thereby increasing the distance between the two locking parts 1212 in the left-right direction, allowing the medical device body 200 to be detached from between the two locking parts 1212. Conversely, when switching from the released position to the locked position, the locking part 1212 away from the pedal 130 rotates to the right (clockwise), and the locking part 1212 near the pedal 130 rotates to the left (counterclockwise), thereby reducing the distance between the two locking parts 1212 in the left-right direction, allowing the medical device body 200 to be fixed between the two locking parts 1212. In this embodiment, the operator can control the rotation of both locking clamp assemblies 120 simultaneously by controlling a pedal 130, and achieve opposite rotation directions for the two locking clamp assemblies 120, thereby improving the assembly efficiency of the medical device body 200 and the mobile cart 100 and the ease of use of the mobile infusion medical device 10.

[0038] See Figure 3In a further embodiment, the linkage assembly 140 includes a deflector 141, a tension rod 142, and a push rod 143. The deflector 141 is rotatably connected to the base 110. The deflector 141 has a first end 1411 and a second end 1412 disposed opposite to each other in the vertical direction. The rotation center of the deflector 141 and the base 110 is located between the first end 1411 and the second end 1412 in the vertical direction. The push rod 143 is connected to the first end 1411 and a rotating seat 123 near the pedal 130. The tension rod 142 is connected to the second end 1412 and a rotating seat 123 away from the pedal 130. The tension rod 142 and the push rod 143 move in the left-right direction under the drive of the pedal 130, and the directions of movement of the tension rod 142 and the push rod 143 are opposite.

[0039] Specifically, see Figure 3 The upper end of the rotating seat 123 is rotatably connected to the base 110 in the vertical direction, and the lower end is rotatably connected to the push rod 143 or the tension rod 142. When the pedal 130 is pressed to drive the locking part 1212 to rotate to the right (clockwise), during the rotation of the rotating seat 123, the bottom of the rotating seat 123 will drive the push rod 143 to move to the left. The push rod 143 will push the first end 1411 of the reversing member 141 to move, so that the reversing member 141 rotates clockwise around the rotation center of the base 110. The first end 1411 of the reversing member 141 will have a tendency to move to the left, and the second end 1412 will have a tendency to move to the right. The second end 1412 will drive the tension rod 142 to move to the right. The tension rod 142 is connected to the bottom of the rotating seat 123 away from the pedal 130. The tension rod 142 will exert a pulling force on the rotating seat 123, causing the other locking part 1212 to rotate to the left (counterclockwise), thereby switching the locking part 1212 from the locked position to the released position.

[0040] Similarly, when the locking part 1212 switches from the released position to the locked position, the pedal 130 will cause the locking part 1212 to rotate to the left (counterclockwise). During the rotation of the rotating base 123, the bottom of the rotating base 123 will cause the push rod 143 to move to the right. The push rod 143 will push the first end 1411 of the deflector 141 to move, causing the deflector 141 to rotate counterclockwise around the rotation center of the base 110. The first end 1411 of the deflector 141 will have a tendency to move to the right, and the second end 1412 will have a tendency to move to the left. The second end 1412 will cause the tension rod 142 to move to the left. The tension rod 142 will generate a thrust on the rotating base 123, causing the other locking part 1212 to rotate to the right (clockwise), thereby realizing the switching of the locking part 1212 from the released position to the locked position.

[0041] See Figure 3In a further embodiment, the linkage assembly 140 also includes a tension spring 144, the two ends of which are connected to the tension rod 142 and the base 110 respectively in the left-right direction, and the tension spring 144 is stretched by the tension rod 142.

[0042] Specifically, when the pedal 130 is pressed to rotate the locking part 1212 to the right (clockwise), during the rotation of the rotating base 123, the bottom of the rotating base 123 will drive the push rod 143 to move to the left. The push rod 143 will push the first end 1411 of the deflector 141 to move, causing the deflector 141 to rotate clockwise around the rotation center of the base 110. The first end 1411 of the deflector 141 will have a tendency to move to the left, and the second end 1412 will have a tendency to move to the right. The second end 1412 will drive the tension rod 142 to move to the right. At this time, the tension rod 142 will stretch the tension spring 144 and generate a pulling force on the rotating base 123 away from the pedal 130, causing the other locking part 1212 to rotate to the left (counterclockwise), thereby realizing the switching of the locking part 1212 from the locked position to the released position.

[0043] When the external force on the pedal 130 disappears, the tension spring 144 exerts a pulling force on the tension rod 142, causing the tension rod 142 to move to the left. The tension rod 142 then drives the deflector 141 to rotate counterclockwise around the rotation center, causing the first end 1411 of the deflector 141 to tend to move to the right, and the second end 1412 to tend to move to the left. The first end 1411 applies a pushing force to the push rod 143, causing the push rod 143 to move to the right and push the rotating seat 123 near the pedal 130 to rotate to the left (counterclockwise), thereby resetting the two locking assemblies 120. In this embodiment, by providing a tension spring 144, when the pedal 130 is not subjected to external force, the pedal 130 and the locking clamp assembly 120 can automatically reset under the tension of the tension spring 144. This allows the operator to automatically reset the pedal 130 and the locking clamp assembly 120 after the medical device body 200 is removed from the mobile cart 100, further improving the assembly efficiency of the medical device body 200 and the mobile cart 100 and the ease of use of the mobile infusion medical device 10.

[0044] See Figure 3 and Figure 4In some embodiments, the mobile trolley 100 further includes a positioning component 150, which includes a positioning block 151, a sliding block 152, and a limiting rod 153. The positioning block 151 is connected to the base 110, and has a positioning groove 1511 inside. The positioning groove 1511 connects to one end of the positioning block 151 facing the sliding block 152 in the left-right direction, and a portion of the sliding block 152 is movably disposed in the positioning groove 1511. The side of the sliding block 152 facing away from the positioning block 151 in the left-right direction is connected to the rotating seat 123. The sliding block 152 has a sliding groove 1521 inside, and one end of the limiting rod 153 is connected to the positioning block 151, while the other end is movably disposed in the sliding groove 1521. The sliding groove 1521 has a first positioning wall 1522 and a second positioning wall 1523 spaced apart in the left-right direction. When the locking part 1212 is in the locked position, the end of the limiting rod 153 abuts against the first positioning wall 1522, and the locking part 1212 fixes the medical device body 200. When the locking part 1212 is in the released position, the end of the limiting rod 153 abuts against the second positioning wall 1523, and the locking part 1212 separates from the medical device body 200.

[0045] Specifically, see Figure 4 At this time, the end of the limiting rod 153 abuts against the first positioning wall 1522, and the locking part 1212 is in the locked position. When the locking part 1212 switches from the locked position to the released position, the pedal 130 drives the rotating seat 123 to rotate clockwise. The sliding block 152 is rotatably connected to the lower end of the rotating seat 123 near the pedal 130 in the up-down direction, that is, the connection position between the sliding block 152 and the rotating seat 123 is located below the rotation center of the rotating seat 123 and the pedal 130. The lower end of the rotating seat 123 has a tendency to move to the left. During the movement of the rotating seat 123, it will push the sliding block 152 to slide to the left, so that the limiting rod 153 moves to the right relative to the sliding block 152, and the end of the limiting rod 153 will move along the inner wall of the sliding groove 1521. After the pedal 130 is released, the end of the limiting rod 153 moves to the position of the second positioning wall 1523. The rotating seat 123 near the pedal 130 rotates counterclockwise to reset under the action of the tension spring 144. At this time, the lower end of the rotating seat 123 tends to move to the right. The rotating seat 123 will pull the sliding block 152, causing the sliding block 152 to move to the right in the positioning groove 1511. Since the end of the limiting rod 153 is located at the second positioning wall 1523, when the sliding block 152 moves to the right, the end of the limiting rod 153 will abut against the second positioning wall 1523. The limiting rod 153 will prevent the sliding block 152 from continuing to slide to the right, thereby keeping the locking part 1212 in the released state.

[0046] When pedal 130 is pressed again, the end of the limiting rod 153 will separate from the second positioning wall 1523. After releasing pedal 130, the end of the limiting rod 153 will move along the channel behind the second positioning wall 1523 to the first positioning wall 1522 and abut against the first positioning wall 1522 to keep the locking part 1212 in the locked state. In this embodiment, the mobile cart 100, by setting the positioning component 150, allows the limiting rod 153 to abut against different positioning walls in two positions, so that the operator can move the medical device body 200 away from the base 110 without maintaining a pedaling action. This improves the assembly efficiency of the medical device body 200 and the mobile cart 100 and the ease of use of the mobile infusion medical device 10.

[0047] In a further embodiment, see [reference] Figure 4 The sliding groove 1521 also includes a third positioning wall 1524 and a fourth positioning wall 1525 connected to each other. The third positioning wall 1524 and the fourth positioning wall 1525 are located on the side of the second positioning wall 1523 facing away from the first positioning wall 1522 in the left-right direction. The third positioning wall 1524 and the fourth positioning wall 1525 are spaced apart from the second positioning wall 1523 in the left-right direction, and the third positioning wall 1524 and the fourth positioning wall 1525 are respectively located on both sides of the second positioning wall 1523 in the front-back direction.

[0048] The locking part 1212 has a first limit position and a second limit position. In the first limit position, the end of the limiting rod 153 abuts against the third positioning wall 1524. In the second limit position, the end of the limiting rod 153 abuts against the fourth positioning wall 1525. Specifically, when the locking part 1212 switches from the locked position to the released position, the end of the limiting rod 153 passes through the first limit position, moves from the first positioning wall 1522 to the third positioning wall 1524, then moves from the third positioning wall 1524 to the second positioning wall 1523, and finally abuts against the second positioning wall 1523. When the locking part 1212 switches from the released position to the locked position, the end of the limiting rod 153 passes through the second limit position, moves from the second positioning wall 1523 to the fourth positioning wall 1525, then moves from the fourth positioning wall 1525 to the first positioning wall 1522, and finally abuts against the first positioning wall 1522.

[0049] It should be noted that the second positioning wall 1523 is composed of two inclined surfaces or curved surfaces connected together. The connection position of the two surfaces is the position where the limiting rod 153 abuts. The third positioning wall 1524 and the fourth positioning wall 1525 are also inclined surfaces or curved surfaces. The connection position of the third positioning wall 1524 and the fourth positioning wall 1525 is set forward relative to the connection position of the two surfaces of the second positioning wall 1523. That is, along the front-back direction, the connection position of the third positioning wall 1524 and the fourth positioning wall 1525 is located in front of the connection position of the two surfaces of the second positioning wall 1523. The connection positions of the third positioning wall 1524 and the fourth positioning wall 1525 and the connection position of the two surfaces of the second positioning wall 1523 are spaced apart along the left-right direction. A first channel exists between the third positioning wall 1524 and the first positioning wall 1522; a second channel exists between the third positioning wall 1524 and the second positioning wall 1523; a third channel exists between the second positioning wall 1523 and the fourth positioning wall 1525; and a fourth channel exists between the fourth positioning wall 1525 and the first positioning wall 1522. The first channel is positioned forward relative to the first positioning wall 1522 and the second positioning wall 1523 in the front-back direction, and the fourth channel is positioned backward relative to the first positioning wall 1522 and the second positioning wall 1523 in the front-back direction.

[0050] Specifically, during the process of switching the locking part 1212 from the locked position to the released position, when the limiting rod 153 moves within the sliding groove 1521, the limiting rod 153 will first move along the channel wall of the first channel. Since the initial position of the limiting rod 153 is the first positioning wall 1522, when the limiting rod 153 moves within the first channel, it tends to move forward to return to its initial center position. When the limiting rod 153 moves to the third positioning wall 1524, it is at its first extreme position. When the release pedal 130 is activated, the sliding block 152 moves to the right under the action of the tension spring 144 to reset, while the limiting rod 153 moves backward simultaneously, causing it to move to the second positioning wall 1523 within the second channel, thereby keeping the locking part 1212 in the released position.

[0051] When pedal 130 is pressed again, sliding block 152 moves to the left. Since the connection point of the two surfaces of the second positioning wall 1523 is the abutment point of the second positioning wall 1523 and the limiting rod 153, and this abutment point is located behind the connection point of the third positioning wall 1524 and the fourth positioning wall 1525, the limiting rod 153 will move along the channel wall of the third channel during the movement of sliding block 152 to the left, and abut against the fourth positioning wall 1525. At this time, the limiting rod 153 is in the second extreme position. When pedal 130 is released, the limiting rod 153 will move in the fourth channel and has a tendency to move forward to return to the initial center position. At this time, sliding block 152 will also move to the right. However, when the sliding block 152 moves to the right, the limiting rod 153 will first abut against the channel wall of the fourth channel. As the limiting rod 153 moves forward, it will move along the channel wall of the fourth channel to eventually return to the position of the first positioning wall 1522 and abut against the first positioning wall 1522.

[0052] In this embodiment, the positions of the second positioning wall 1523, the third positioning wall 1524, and the fourth positioning wall 1525 form a guide structure (such as an inclined step structure), which allows the limiting rod 153 to move sequentially toward the target position under the action of the sliding block 152 and the tension spring 144, preventing the limiting rod 153 from moving back, enhancing the stability of the pedal 130's self-locking function, and realizing the operation logic of the pedal 130 opening with one step and resetting and locking with a second step.

[0053] See Figure 5 The sliding groove 1521 also has a blocking part 154, which is located between the first channel and the fourth channel and separates the first channel and the fourth channel. When the limiting rod 153 abuts against the first positioning wall 1522, the limiting rod 153 also abuts against the blocking part 154. When the limiting rod 153 moves from the first positioning wall 1522 to the second positioning wall 1523, the blocking part 154 will block the limiting rod 153 to prevent the limiting rod 153 from moving from the first positioning wall 1522 to the second positioning wall 1523 through the fourth channel.

[0054] Further reading Figure 4To prevent excessive force applied by the operator when pressing the pedal 130, which could cause fatigue or breakage of the limiting rod 153 due to excessive impact, a stop screw 155 is installed inside the positioning block 151. Each time the operator presses the pedal 130, the sliding block 152 moves to the left, contacting the stop screw 155 to stop its sliding. At this point, the limiting rod 153 is precisely at its first or second extreme position, thus preventing impact between the limiting rod 153 and the third or fourth positioning wall 1524 or 1525. In this embodiment, the side of the stop screw 155 facing the sliding block 152 is made of engineering plastic, providing cushioning and withstanding more sustained impacts.

[0055] In some embodiments, see Figure 6 and Figure 7 The mobile trolley 100 also includes a lifting assembly 160, which is connected to the bottom of the base 110 in the vertical direction and spaced apart from the rotating seat 123 in the front-back direction. That is, the lifting assembly 160 and the locking assembly 120 are arranged separately on the base 110 in the front-back direction to avoid interference. The lifting assembly 160 includes a first swing arm 161, a second swing arm 162, a support arm 163, and a transmission rod 164. The first swing arm 161, the second swing arm 162, the support arm 163, and the transmission rod 164 are all located at the bottom of the base 110 in the vertical direction. The first swing arm 161 is rotatably connected to one end of the base 110 in the left-right direction, and the support arm 163 is located at the other end of the base 110 in the left-right direction. The second swing arm 162 includes a third end 1621 and a fourth end 1622. The third end 1621 is rotatably connected to the support arm 163. The fourth end 1622 includes a first connecting position 1623 and a second connecting position 1624. The first connecting position 1623 is rotatably connected to the base 110. The two ends of the transmission rod 164 are rotatably connected to the second connecting position 1624 and the first swing arm 161, respectively.

[0056] The first swing arm 161 has a swinging state and a fixed state. When the first swing arm 161 is in the swinging state, it can rotate relative to the base 110. Driving the first swing arm 161 can make it swing in the left and right direction. The swinging of the first swing arm 161 will push the transmission rod 164 to move in the left and right direction and simultaneously raise and lower in the up and down direction. Since the third end 1621 of the second swing arm 162 is rotatably connected to the support arm 163, the third end 1621 can rotate relative to the support arm 163, thereby changing the height of the base 110 in the up and down direction. The raising and lowering of the transmission rod 164 will drive the second swing arm 162 to rotate around the first connection position 1623 as the fulcrum, changing the height of the base 110 in the up and down direction, thereby realizing the raising and lowering of the base 110 in the up and down direction, thereby adjusting the working height of the medical device body 200. In the fixed state, the first swing arm 161 and the second swing arm 162 are relatively fixed, that is, the first swing arm 161 stops swinging and forms a stable support structure with the second swing arm 162, so that the base 110 is kept at a set height, thereby improving the stability and safety of the medical device body 200 during operation.

[0057] In a further embodiment, see [reference] Figure 7 The lifting assembly 160 also includes a telescopic arm 165, which is located at the same end of the base 110 along the left-right direction as the support arm 163. The telescopic arm 165 is telescopically connected to the support arm 163 on the side facing the base 110 in the up-down direction, that is, the upper end of the telescopic arm 165 is connected to the base 110, and the lower end is connected to the support arm 163, and the telescopic arm 165 can extend and retract in the up-down direction.

[0058] Specifically, when the first swing arm 161 is in a swinging state, it can rotate relative to the base 110. This rotation drives the second swing arm 162 to rotate via the transmission rod 164. The rotation of the second swing arm 162 causes a change in the height of the base 110 relative to the support arm 163. Since the two ends of the telescopic arm 165 are connected to the base 110 and the support arm 163 respectively, the telescopic arm 165 extends and retracts in the vertical direction as the height of the base 110 relative to the support arm 163 changes. The extension and retraction of the telescopic arm 165 coordinates with the rotation of the second swing arm 162 to jointly achieve the vertical lifting and lowering of the base 110, improving the stability of the base 110's lifting and lowering. In the fixed state, the first swing arm 161 and the telescopic arm 165 are relatively fixed; that is, the first swing arm 161 stops swinging and forms a stable support structure with the telescopic arm 165. The telescopic arm 165 maintains its current extension length, working together with the second swing arm 162 to support the base 110 at a set height, improving the stability and safety of the medical device body 200 during operation.

[0059] Furthermore, the telescopic arm 165 restricts the position of the support arm 163. It is understood that the telescopic arm 165 is connected to the base 110 and the support arm 163, and the telescopic arm 165 cannot rotate relative to the base 110 and the support arm 163. The second swing arm 162 is rotatably connected to the support arm 163. When the first swing arm 161 swings to raise or lower the base 110, the telescopic arm 165 fixes the position of the support arm 163, ensuring that the height of the support arm 163 relative to the platform (such as the ground) where the mobile trolley 100 is placed remains constant. This allows the lifting assembly 160 to raise or lower the base 110 only through the rotation of the second swing arm 162 relative to the support arm 163, avoiding the situation where the mobile trolley 100 has multiple degrees of rotational freedom when adjusting the height of the base 110, thus improving the adjustment stability of the mobile trolley 100.

[0060] In a further embodiment, the lifting assembly 160 also includes a buffer 167, which is mounted on the bottom of the base 110 and has telescopic and hydraulic cushioning functions. See also Figure 9 The end of the buffer 167 contacts the side wall of the first swing arm 161 and exerts a certain force on the first swing arm 161. When the lifting assembly 160 needs to rise, the buffer 167 can provide the first swing arm 161 with a rightward unfolding force, making the angle between the first swing arm 161 and the vertical direction smaller. When the lifting assembly 160 needs to descend, the end of the first swing arm 161 will squeeze the buffer 167, which can reduce the descent speed of the lifting assembly 160, prevent the lifting assembly 160 from descending rapidly, and ensure the safety of the operator.

[0061] See Figure 8 and Figure 9 It is understood that the lifting assembly 160 also includes a limiting member 166, which is detachably connected to the first swing arm 161. The first swing arm 161 has a first limiting hole 1611 and a second limiting hole 1612 that are separated from each other. The first limiting hole 1611 and the second limiting hole 1612 are arranged at intervals around the rotation center of the first swing arm 161. The first limiting hole 1611 and the second limiting hole 1612 are used to cooperate with the limiting member 166 to lock the first swing arm 161 in different positions.

[0062] The first swing arm 161 has a swinging state and a fixed state. When the first swing arm 161 is in the fixed state, the limiting member 166 passes through the first limiting hole 1611 or the second limiting hole 1612 and is connected to the base 110, thereby fixing the first swing arm 161 relative to the base 110 to prevent the first swing arm 161 from rotating, thus keeping the base 110 at a set height. When the first swing arm 161 is in the swinging state, the limiting part of the limiting member 166 separates from the first limiting hole 1611 and the second limiting hole 1612, that is, the limiting member 166 is pulled out from the first limiting hole 1611 or the second limiting hole 1612 to release the locking of the first swing arm 161, allowing the first swing arm 161 to rotate relative to the base 110, realizing the lifting and lowering adjustment of the base 110. In this embodiment, the limiting member 166 can fix the first swing arm 161, thereby fixing the height of the moving trolley 100, thereby improving the stability and safety of the medical device body 200 during operation.

[0063] See Figure 10 In one possible embodiment, the limiting member 166 includes a limiting block 1661, a limiting portion 1664, a protrusion 1665, and a second elastic member 1666. The limiting block 1661 is connected to the base 110 and has a communicating mounting groove 1662 and a limiting groove 1663. The mounting groove 1662 extends in a front-rear direction and connects the two ends of the limiting block 1661 in the front-rear direction. The limiting groove 1663 communicates with the mounting groove 1662. The second elastic member 1666 and at least a portion of the limiting portion 1664 are movably disposed within the mounting groove 1662, and the limiting portion 1664 can reciprocate within the mounting groove 1662 in a front-rear direction. The protrusion 1665 is connected to the peripheral wall of the limiting portion 1664 and located within the mounting groove 1662, and the protrusion 1665 protrudes radially outward along the limiting portion 1664. One end of the second elastic member 1666 abuts against the side of the protrusion 1665 facing away from the first swing arm 161, and the other end abuts against the inner wall of the mounting groove 1662. The second elastic member 1666 provides the limiting part 1664 with an elastic restoring force toward the first swing arm 161.

[0064] When the first swing arm 161 needs to be fixed, the limiting part 1664 will correspond to the first limiting hole 1611 or the second limiting hole 1612. Under the elastic force of the second elastic member 1666, the limiting part 1664 will move towards the first limiting hole 1611 or the second limiting hole 1612 and extend into the mounting groove 1662, so that the limiting part 1664 can pass through the first limiting hole 1611 or the second limiting hole 1612 to fix the first swing arm 161. When the first swing arm 161 is in a swinging state, the operator can hold the end of the limiting part 1664 facing away from the first swing arm 161 and pull the limiting part 1664 in the front-back direction, so that the limiting part 1664 retracts into the mounting groove 1662 against the elastic force of the second elastic member 1666, and the protrusion 1665 will move with the limiting part 1664. The position of the protrusion 1665 will correspond to the position of the limiting groove 1663. The operator can rotate the limiting part 1664 to drive the protrusion 1665 to rotate, so that the protrusion 1665 can be accommodated in the limiting groove 1663 and abut against the inner wall of the limiting groove 1663, thereby overcoming the elastic force of the second elastic member 1666 and keeping the limiting part 1664 and the limiting block 1661 relatively fixed.

[0065] See Figure 11 and Figure 12 The mobile trolley 100 also includes a fixing assembly 170, which includes a fixing block 171, a movable block 172, a fixing post 173, and a fixing button 174. The fixing block 171 is connected to the base 110 and has a fixing groove 1711 that connects to one end of the fixing block 171 facing the movable block 172 in the vertical direction. The movable block 172 is movably disposed within the fixing groove 1711 and can reciprocate vertically. The fixing post 173 is connected to the side of the movable block 172 facing away from the base 110, i.e., the fixing post 173 is located below the movable block 172 and extends downwards. The fixing button 174 is connected to the movable block 172; pressing or pulling the fixing button 174 by the operator can drive the movable block 172 to move within the fixing groove 1711.

[0066] Specifically, the movable block 172 is driven by the fixed button 174 to move the fixed column 173 vertically. When the mobile trolley 100 needs to be fixed in a specific position, the operator drives the fixed button 174 to cause the movable block 172 to extend the fixed column 173 downwards in the vertical direction. After the fixed column 173 extends, it inserts into the fixed slot 180 on the ground or the fixed slot 180 on the medical vehicle, forming a rigid connection between the mobile trolley 100 and the ground or medical vehicle, preventing the main body of the medical equipment 200 from shifting due to external forces or uneven ground during operation. When the mobile trolley 100 needs to be moved, the operator drives the fixed button 174 in the opposite direction to cause the movable block 172 to retract the fixed column 173 upwards in the vertical direction. The fixed column 173 disengages from the fixed slot 180 on the ground, releasing the lock between the mobile trolley 100 and the ground or medical vehicle, restoring the mobile trolley 100 to its movable state, thereby improving the stability and safety of the mobile trolley 100 when the main body of the medical equipment 200 is in operation.

[0067] In a further embodiment, see [reference] Figure 11 and Figure 12 The movable block 172 has an internal movable groove 1721. The fixing assembly 170 also includes a fixing member 175 and a third elastic member 176. The third elastic member 176 is located inside the fixing groove 1711. Both ends of the third elastic member 176 abut against the inner wall of the fixing groove 1711 and the movable block 172 respectively, and are pressed against both the movable block 172 and the inner wall of the fixing groove 1711. The third elastic member 176 provides elastic restoring force to the movable block 172. One end of the fixing member 175 is rotatably connected to the fixing block 171, and the other end passes through the movable groove 1721. The fixing member 175 and the movable groove 1721 cooperate to guide and limit the movement trajectory of the movable block 172. The movable groove 1721 has a first fixing wall 1722 and a second fixing wall 1723, which are spaced apart in the vertical direction to form a limiting wall for the range of motion of the end of the fixing member 175.

[0068] Specifically, the fixed column 173 has an extended position and a retracted position. In the retracted position, the end of the fixing member 175 passing through the movable groove 1721 abuts against the first fixed wall 1722, the third elastic member 176 is in a compressed or natural state, the fixed column 173 retracts to a position close to the base 110, disengages from the ground fixing slot 180, and the moving trolley 100 can move freely. When the operator presses the fixing button 174, the movable block 172 overcomes the elastic force of the third elastic member 176 and moves downward in the vertical direction, the fixing member 175 slides relative to the movable groove 1721, and the fixing member 175 moves upward relative to the movable block 172. When the operator releases the fixing button 174, the elastic restoring force of the third elastic member 176 pushes the movable block 172 back to its original position in the vertical direction, and the fixing member 175 moves downward relative to the movable block 172. However, after the movable block 172 moves upward a certain distance, the fixing member 175 will abut against the second fixing wall 1723 to prevent the movable block 172 from moving upward, thereby keeping the fixing column 173 in the extended position. The fixing column 173 can extend downward and insert into the fixing slot 180 on the ground to lock the trolley 100 to the ground. When it is necessary to unlock, the operator presses the fixing button 174 again, and the movable block 172 will move downward to separate the fixing member 175 from the second fixing wall 1723. When the fixing button 174 is released again, the elastic restoring force of the third elastic member 176 pushes the movable block 172 back to its original position in the vertical direction, and the fixing member 175 will abut against the first fixing wall 1722 again, so that the fixing column 173 returns to the retracted position.

[0069] In this embodiment, the mobile cart 100 is equipped with a fixing component 170, which allows the fixing member 175 to abut against different fixing walls in two positions. This allows the operator to ensure the extension of the fixing column 173 without having to keep pressing the fixing button 174, thereby improving the assembly efficiency of the medical device body 200 and the mobile cart 100 and the ease of use of the mobile infusion medical device 10.

[0070] See Figure 11 and Figure 12 In a further embodiment, the movable groove 1721 further includes a third fixed wall 1724 and a fourth fixed wall 1725. The third fixed wall 1724 and the fourth fixed wall 1725 are located on the side of the second fixed wall 1723 facing away from the first fixed wall 1722 in the vertical direction. The third fixed wall 1724 and the fourth fixed wall 1725 are spaced apart from the second fixed wall 1723 in the vertical direction, and the third fixed wall 1724 and the fourth fixed wall 1725 are respectively located on both sides of the second fixed wall 1723 in the front-back direction.

[0071] The fixing post 173 has a third limit position and a fourth limit position. In the third limit position, the end of the fixing member 175 abuts against the third fixing wall 1724. In the fourth limit position, the end of the fixing member 175 abuts against the fourth fixing wall 1725. Specifically, when the fixing post 173 switches from the retracted position to the extended position, the end of the fixing member 175 passes through the third limit position, moves from the first fixing wall 1722 to the third fixing wall 1724, then moves from the third fixing wall 1724 to the second fixing wall 1723, and finally abuts against the second fixing wall 1723. When the fixing post 173 switches from the extended position to the retracted position, the end of the fixing member 175 passes through the fourth limit position, moves from the second fixing wall 1723 to the fourth fixing wall 1725, then moves from the fourth fixing wall 1725 to the first fixing wall 1722, and finally abuts against the first fixing wall 1722.

[0072] It should be noted that, in one example, the second fixed wall 1723 is composed of two inclined surfaces or curved surfaces connected together, and the connection position of the two surfaces is the position where the fastener 175 abuts. The third fixed wall 1724 and the fourth fixed wall 1725 are also inclined surfaces or curved surfaces. The connection position of the third fixed wall 1724 and the fourth fixed wall 1725 is set to the rearward side relative to the connection position of the two surfaces of the second fixed wall 1723. That is, along the front-back direction, the connection position of the third fixed wall 1724 and the fourth fixed wall 1725 is located behind the connection position of the two surfaces of the second fixed wall 1723. The connection positions of the third fixed wall 1724 and the fourth fixed wall 1725 and the connection position of the two surfaces of the second fixed wall 1723 are spaced apart along the vertical direction. A fifth channel exists between the third fixed wall 1724 and the first fixed wall 1722; a sixth channel exists between the third fixed wall 1724 and the second fixed wall 1723; a seventh channel exists between the second fixed wall 1723 and the fourth fixed wall 1725; and an eighth channel exists between the fourth fixed wall 1725 and the first fixed wall 1722. The fifth channel is positioned rearward relative to the first fixed wall 1722 and the second fixed wall 1723 in the front-rear direction, and the eighth channel is positioned forward relative to the first fixed wall 1722 and the second fixed wall 1723 in the front-rear direction.

[0073] Specifically, during the transition of the fixed post 173 from the retracted position to the extended position, when the fixing member 175 moves within the movable slot 1721, it first moves along the channel wall of the fifth channel. Since the initial position of the fixing member 175 is on the first fixed wall 1722, and the position of the first fixed wall 1722 in the front-back direction is the center position of the fixed post 173 in the front-back direction, when the fixing member 175 moves within the fifth channel, it tends to move forward to return to the center position. When the fixing member 175 moves to the third fixed wall 1724, it is at its third extreme position. Releasing the fixing button 174 causes the movable block 172 to move upward in the vertical direction under the action of the third elastic member 176 to reset, while the fixing member 175 moves forward simultaneously, causing it to move to the second fixed wall 1723 in the sixth channel, thereby maintaining the fixed post 173 in the extended position.

[0074] When the fixing button 174 is pressed again, the movable block 172 will move downwards in the vertical direction. Since the connection position of the two surfaces of the second fixing wall 1723 is the abutment position of the second fixing wall 1723 and the fixing member 175, and this abutment position is located in front of the third fixing wall 1724 and the fourth fixing wall 1725, the fixing member 175 will move upwards along the channel wall of the seventh channel in the vertical direction of the movable block 172, and finally abut against the fourth fixing wall 1725. At this time, the fixing member 175 is in the fourth limit position. When the fixing button 174 is released, the fixing member 175 will move in the eighth channel and has a tendency to move backwards to return to the center position. At this time, the movable block 172 will also move upwards in the vertical direction. However, when the movable block 172 moves upward, the fixing member 175 will first abut against the channel wall of the eighth channel. As the fixing member 175 moves backward, it will move along the channel wall of the eighth channel to eventually return to the position of the first fixing wall 1722 and abut against the first fixing wall 1722.

[0075] In this embodiment, the positions of the second fixed wall 1723, the third fixed wall 1724, and the fourth fixed wall 1725 form a guide structure, which allows the fixing member 175 to move sequentially toward the target position under the action of the movable block 172 and the third elastic member 176, thus preventing the fixing member 175 from moving back, enhancing the stability of the self-locking function of the fixed button 174, and realizing the operation logic of the fixed button 174 extending with self-locking on the first press and retracting with resetting on the second press.

[0076] A second aspect of the present invention provides a mobile perfusion medical device 10, see below. Figure 2 and Figure 13The mobile perfusion medical device 10 includes a medical device body 200 and a mobile trolley 100 as described in any of the above embodiments. The medical device body 200 is located on the bearing surface of the base 110 in the vertical direction and is connected to the locking part 1212.

[0077] Specifically, when the medical device body 200 and the mobile cart 100 are assembled, during the process of placing the medical device body 200 on the bearing surface of the base 110, the medical device body 200 will come into contact with the locking part 1212. The medical device body 200 will push the locking member 121 towards the first elastic member 122, causing the connecting part 1211 to press the first elastic member 122 in the left-right direction, so that there is enough space on the base 110 to place the medical device body 200. After the medical device body 200 is placed on the base 110, the first elastic member 122 is under pressure. The first elastic member 122 will apply a reaction force to the connecting part 1211 of the locking member 121, so that the locking part 1212 abuts against the medical device body 200 to fix the medical device body 200. When the medical device body 200 and the base 110 need to be disassembled, the drive pedal 130 causes the rotating seat 123 and the base 110 to rotate relative to each other. The rotating seat 123 will drive the locking part 1212 to rotate in the direction away from the medical device body 200. If the medical device body 200 is to the left of the locking part 1212, the rotating seat 123 will drive the locking part 1212 to rotate to the right (clockwise), so that the locking part 1212 and the medical device body 200 are separated, so that the medical device body 200 can be detached from the base 110, thereby realizing the disassembly of the mobile cart 100 and the medical device body 200.

[0078] In one example, see Figure 1 The mobile cart 100 has a positioning edge on its circumference. When the medical device body 200 is moved into the mobile cart 100, the positioning edge will abut against the circumferential wall of the medical device body 200 to position the medical device body 200 and thus restrict its planar movement.

[0079] In a further embodiment, the medical device body 200 also includes a hook portion 210, which is connected to the side of the medical device body 200 facing the base 110. After the medical device body 200 and the base 110 are assembled, the hook portion 210 is connected to the locking portion 1212. Along the vertical direction, on a plane perpendicular to the vertical direction, the orthographic projection of the locking portion 1212 will partially cover the orthographic projection of the hook portion 210.

[0080] Specifically, see Figure 2The locking part 1212 has an inclined surface on the side facing the medical device body 200. When the medical device body 200 is assembled, the hook part 210 abuts against the inclined surface of the locking part 1212. As the medical device body 200 gradually approaches the base 110 in the vertical direction, the hook part 210 slides along the inclined surface of the locking part 1212 and applies a pushing force to the locking part 1212, causing the locking part 1212 to drive the connecting part 1211 to move toward the first elastic member 122 to compress the first elastic member 122. After the medical device body 200 and base 110 are assembled, the hook part 210 is located below the locking part 1212 in the vertical direction. The hook part 210 and the locking part 1212 have corresponding parts in the vertical direction. When the medical device body 200 moves the hook part 210 upward in the vertical direction, the locking part 1212 will abut against the hook part 210 to hinder the movement of the medical device body 200, thereby fixing the medical device body 200. This improves the locking stability of the mobile cart 100 on the medical device body 200 and enhances the ease of use of the mobile infusion medical device 10. During disassembly, after the locking part 1212 rotates with the rotating seat 123, the locking part 1212 will move away from the hook part 210. There are no corresponding parts between the locking part 1212 and the hook part 210, thereby releasing the limitation of the locking part 1212 on the hook part 210 and realizing the disassembly of the mobile cart 100 and the medical device body 200.

[0081] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

Claims

1. A mobile trolley having three perpendicular directions: a first direction, a second direction, and a third direction, characterized in that: include: The base has a bearing surface on the third-party side, the bearing surface being used to support the main body of the medical device; A locking clamp assembly includes a locking member, a first elastic member, and a rotating base. The rotating base is rotatably connected to a base and has a mounting cavity. The locking member includes a connecting portion and a locking portion connected together. The connecting portion is movably disposed in the mounting cavity. The connecting portion and the locking portion are driven to move relative to the rotating base and compress the first elastic member. The first elastic member is located in the mounting cavity. The two ends of the first elastic member along a first direction are respectively connected to the rotating base and the connecting portion. The locking portion is located outside the mounting cavity and is used to fix the main body of a medical device. A pedal is connected to the rotating seat; The rotating seat and the base have their rotation axes parallel to the second direction. The rotating seat is driven by the pedal and can drive the first elastic member and the locking member to rotate relative to the base around the rotation axis, so that the locking part is separated from the main body of the medical device.

2. The mobile trolley according to claim 1, characterized in that, The mobile trolley includes two locking assemblies, which are located on both sides of the base along the first direction, and the main body of the medical device is disposed between the two locking parts; The mobile trolley also includes a linkage assembly located between the two rotating seats along the first direction and connected to the two rotating seats. The pedal is connected to one of the rotating seats and drives the other rotating seat to move through the linkage assembly. The two rotating seats are driven by the pedal to rotate around the rotation axis, and the rotation directions of the two locking parts are opposite.

3. The mobile trolley according to claim 2, characterized in that, The linkage assembly includes a deflector, a tension rod, and a push rod. The deflector is rotatably connected to the base and has a first end and a second end opposite each other along the third direction. The rotation center of the deflector and the base is located between the first end and the second end along the third direction. The push rod is connected to the first end and the rotating seat near the pedal. The tension rod is connected to the second end and the rotating seat away from the pedal. The tension rod and the push rod are driven by the pedal to move along the first direction, and the directions of movement of the tension rod and the push rod are opposite.

4. The mobile trolley according to claim 3, characterized in that, The linkage assembly further includes a tension spring, the two ends of which are connected to the base and the tension rod respectively along the first direction, and the tension spring is stretched by the tension rod.

5. The mobile trolley according to claim 3, characterized in that, The mobile trolley also includes a positioning component, which includes a positioning block, a sliding block, and a limiting rod. The positioning block is connected to the base and has a positioning groove that connects to the end of the positioning block along the first direction. Part of the sliding block is movably disposed in the positioning groove. The side of the sliding block facing away from the positioning block along the first direction is connected to the rotating seat and has a sliding groove. One end of the limiting rod is rotatably connected to the positioning block, and the other end is movably disposed in the sliding groove. The sliding groove has a first positioning wall and a second positioning wall spaced apart along the first direction. The locking part has a release position and a locking position. In the locking position, the end of the limiting rod abuts against the first positioning wall, and the locking part fixes the main body of the medical device. In the release position, the end of the limiting rod abuts against the second positioning wall, and the locking part separates from the main body of the medical device.

6. The mobile trolley according to claim 5, characterized in that, The sliding groove further includes a third positioning wall and a fourth positioning wall connected to each other. The third positioning wall and the fourth positioning wall are located on the side of the second positioning wall opposite to the first positioning wall along the first direction. The third positioning wall and the fourth positioning wall are spaced apart from the second positioning wall along the first direction and are respectively located on both sides of the second positioning wall along the second direction. The locking part has a first limit position and a second limit position. In the first limit position, the end of the limiting rod abuts against the third positioning wall; in the second limit position, the end of the limiting rod abuts against the fourth positioning wall.

7. The mobile trolley according to claim 1, characterized in that, The mobile trolley also includes a lifting assembly, which is spaced apart from the rotating seat along the second direction; The lifting assembly includes a first swing arm, a second swing arm, a support arm, and a transmission rod located at the bottom of the base along the third direction. The first swing arm is rotatably connected to one end of the base along the first direction, and the support arm is located at the other end of the base along the first direction. The second swing arm includes a third end and a fourth end opposite to each other. The third end is rotatably connected to the support arm, and the fourth end includes a first connection position and a second connection position. The first connection position is rotatably connected to the base, and the two ends of the transmission rod are respectively rotatably connected to the second connection position and the first swing arm. The first swing arm has a swing state and a fixed state. In the swing state, the first swing arm can rotate relative to the base, so that the transmission rod moves along the third direction and changes the height of the first connection position of the second swing arm along the third direction. In the fixed state, the first swing arm and the second swing arm are relatively fixed.

8. The mobile trolley according to claim 7, characterized in that, The lifting assembly further includes a telescopic arm, which is located at the same end of the base along the first direction as the support arm. The telescopic arm is telescopically connected to the side of the support arm facing the base along the third direction. In the swinging state, the first swing arm can rotate relative to the base, causing the telescopic arm to extend and retract along the third direction. In the fixed state, the first swing arm, the second swing arm, and the telescopic arm are relatively fixed.

9. The mobile trolley according to claim 8, characterized in that, The lifting assembly further includes a limiting member, which is detachably connected to the first swing arm. The first swing arm has a first limiting hole and a second limiting hole that are separated. In the fixed state, the limiting member passes through the first limiting hole or the second limiting hole and is connected to the base. In the swinging state, the limiting member is connected to the base and is separated from the first limiting hole and the second limiting hole.

10. The mobile trolley according to claim 9, characterized in that, The limiting component includes a limiting block, a limiting portion, a protrusion, and a second elastic member. The limiting block is connected to the base and has a communicating mounting groove and a limiting groove. The second elastic member and at least a portion of the limiting portion are movably disposed in the mounting groove. The protrusion is connected to the peripheral wall of the limiting portion and is located in the mounting groove. One end of the second elastic member abuts against the side of the protrusion facing away from the first swing arm, and the other end abuts against the inner wall of the mounting groove. In the swinging state, the protrusion abuts against the inner wall of the limiting groove.

11. The mobile trolley according to claim 1, characterized in that, The mobile vehicle also includes a fixing component, which includes a fixing block, a movable block, a fixing column, and a fixing button. The fixing block is connected to the base and has a fixing groove. The movable block is movably disposed in the fixing groove. The fixing column is connected to the side of the movable block facing away from the base. The fixing button is connected to the movable block. The movable block is driven by the fixing button to move the fixing column in the third direction. The fixing column is adapted to connect to a fixing slot on the ground.

12. The mobile trolley according to claim 11, characterized in that, The movable block has an internal movable groove. The fixing component also includes a fixing member and a third elastic member. The third elastic member is located in the fixing groove. The two ends of the third elastic member along the third direction respectively abut against the inner wall of the fixing groove and the movable block, and are pressed against the movable block and the inner wall of the fixing groove. One end of the fastener is rotatably connected to the fixing block, and the other end passes through the movable groove. The movable groove has a first fixing wall and a second fixing wall, which are spaced apart along the third direction. The fixing column has an extended position and a retracted position. In the retracted position, the fixing column abuts against the first fixing wall, and in the extended position, the fixing column abuts against the second fixing wall.

13. The mobile trolley according to claim 12, characterized in that, The movable groove further includes a third fixed wall and a fourth fixed wall, the third fixed wall and the fourth fixed wall being located on the side of the second fixed wall opposite to the first fixed wall along the third direction, and respectively located on both sides of the second fixed wall along the second direction; The fixing column also has a third limit position and a fourth limit position. In the third limit position, the fixing column abuts against the third fixing wall; in the fourth limit position, the fixing column abuts against the fourth fixing wall.

14. A mobile perfusion medical device, characterized in that, include: The mobile trolley as described in any one of claims 1 to 13; The main body of the medical device is located on the bearing surface of the base along the third direction and is connected to the locking part.

15. The mobile perfusion medical device according to claim 14, characterized in that, The main body of the medical device includes a hook and buckle portion connected to the side of the main body of the medical device facing the base. The hook and buckle portion is connected to the locking portion. Along the third direction on a plane perpendicular to the third direction, the orthographic projection of the locking portion covers part of the orthographic projection of the hook and buckle portion.

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