Electromagnetic clutch device

Abstract

The present invention relates to an electromagnetic clutch device, comprising a first clutch mechanism and a second clutch mechanism, wherein the first clutch gear is slidably and rotatably arranged between a first driven gear and a first electromagnet, and mutually meshing teeth are provided on two opposite surfaces of the first driven gear and the first clutch gear; the second clutch gear is slidably and rotatably arranged between a second driven gear and a second electromagnet, and mutually meshing teeth are provided on two opposite surfaces of the second driven gear and the second clutch gear; the present invention only comprises one set of rotating mechanisms, and can realize that the first clutch mechanism and the second clutch mechanism work at different times, and can be used in an infusion device in which two automatic syringes are driven by one motor, thereby reducing the overall price of the present invention, reducing medical costs, and alleviating the burden on patients.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to an electromagnetic clutch device. Background Art

[0002] Syringes are a very common medical device. When using existing syringes, the needle of the syringe is usually inserted into the medicine bottle manually, and the piston rod is pulled to drive the piston movement, so as to use the air pressure difference to draw the liquid medicine into the syringe, and then the needle is inserted into the patient's vein, and then the piston rod is pressed to inject the liquid medicine into the patient's body. However, when injecting manually, it is easy to cause the injection speed to be too fast due to excessive force when pressing, which will impact the patient's veins and cause strong discomfort to the patient.

[0003] In order to solve the above problems, the Chinese patent with patent number 201920619597.6 discloses "An automatic injector for neurologists", which includes an injection needle tube, an injection cavity is provided in the injection needle tube, a micro-stepping motor is fixedly connected to one end of the injection needle tube, a threaded rod that penetrates the injection needle tube is fixedly connected to the side wall of the micro-stepping motor close to the injection needle tube, and a piston is slidably connected in the injection cavity. The present invention adopts a micro-stepping motor as a power source, and drives the piston to move by means of a threaded connection, so that the movement speed of the piston is stable and easy to control, so the amount of extracting and injecting the medicine liquid is accurately controlled, and the automatic injection speed is slow, which will not cause discomfort to the patient, and the needle on the tube head can be easily replaced according to the needs of the user.

[0004] However, when using the above automatic syringe for injection, only one liquid medicine can be injected at a time. When another liquid medicine needs to be injected, the other liquid medicine needs to be loaded into the automatic syringe. The time of loading the liquid medicine is long, and the patient's waiting time is long. Especially in the cold winter, the exposed injection site of the patient is relatively cold, which increases the patient's pain, affects the patient's mood, and delays the treatment effect. In order to solve the above problems, medical staff will use two automatic syringes at the same time for separate injections. However, the two separate automatic syringes are inconvenient to distinguish, and the patient's name needs to be marked on both automatic syringes, which increases the workload of medical staff.

[0005] In order to reduce the workload of medical staff, two automatic injectors can be fixed on the same shell, so that only the patient's name needs to be marked on the shell, which reduces the workload of medical staff. However, the two automatic injectors include two micromotors, and the price of the micromotors is relatively high. The overall price of the automatic injector is also relatively high, resulting in high medical costs and a heavy burden on patients. In addition, the clutches in the prior art cannot meet the use requirements of the automatic injector. Summary of the invention

[0006] The technical problem to be solved by the present invention is: to provide an electromagnetic clutch device in order to overcome the problem that the clutches in the prior art cannot meet the use requirements of the automatic injector.

[0007] The technical solution adopted by the present invention to solve the technical problem is: an electromagnetic clutch device, including a housing, a rotating mechanism, a first clutch mechanism and a second clutch mechanism:

[0008] The first clutch mechanism comprises a first driven gear, a first clutch gear, a first transmission gear and a first electromagnet. The first driven gear is rotatably mounted in the housing and is in transmission connection with the rotating mechanism. The first electromagnet is fixedly mounted in the housing. The first clutch gear is slidably and rotatably arranged between the first driven gear and the first electromagnet. Meshing teeth that can mesh with each other are provided on two opposite surfaces of the first driven gear and the first clutch gear. A first reset assembly is arranged between the first electromagnet and the first clutch gear. The first transmission gear is in transmission meshing with the first clutch gear.

[0009] The second clutch mechanism comprises a second driven gear, a second clutch gear, a second transmission gear and a second electromagnet. The second driven gear is rotatably mounted in the housing and is transmission-connected to the rotating mechanism. The second electromagnet is fixedly mounted in the housing. The second clutch gear is slidably and rotationally arranged between the second driven gear and the second electromagnet. Meshing teeth that can mesh with each other are provided on two opposite surfaces of the second driven gear and the second clutch gear. A second reset assembly is arranged between the second electromagnet and the second clutch gear. The second transmission gear meshes with the second clutch gear.

[0010] When the first clutch mechanism is working and the second clutch mechanism is not working: the first electromagnet is not working, the first clutch gear is meshed with the first driven gear under the action of the first reset component, and the second electromagnet is working to adsorb the second clutch gear and separate it from the second driven gear;

[0011] When the second clutch mechanism works and the first clutch mechanism does not work: the second electromagnet does not work, the second clutch gear meshes with the second driven gear under the action of the second reset component, and the first electromagnet works to adsorb the first clutch gear and separate it from the first driven gear.

[0012] The electromagnetic clutch device of the present invention comprises a housing, a rotating mechanism, a first clutch mechanism and a second clutch mechanism, wherein the first clutch mechanism comprises a first driven gear, a first clutch gear, a first transmission gear and a first electromagnet, the first clutch gear is slidably and rotatably arranged between the first driven gear and the first electromagnet, and meshing teeth that can mesh with each other are provided on two opposite surfaces of the first driven gear and the first clutch gear; the second clutch mechanism comprises a second driven gear, a second clutch gear, a second transmission gear and a second electromagnet, the second clutch gear is slidably and rotatably arranged between the second driven gear and the second electromagnet, and meshing teeth that can mesh with each other are provided on two opposite surfaces of the second driven gear and the second clutch gear; when the first clutch mechanism is working, the second When the clutch mechanism is not working: the first electromagnet is not working, the first clutch gear is meshed with the first driven gear under the action of the first reset component, and the second electromagnet is working, adsorbing the second clutch gear and separating it from the second driven gear; when the second clutch mechanism is working and the first clutch mechanism is not working: the second electromagnet is not working, the second clutch gear is meshed with the second driven gear under the action of the second reset component, and the first electromagnet is working, adsorbing the first clutch gear and separating it from the first driven gear; the present invention only includes one set of rotating mechanisms, which can realize the first clutch mechanism and the second clutch mechanism working at different times, and can be used in an infusion device in which one motor drives two automatic syringes, thereby reducing the overall price of the present invention, reducing medical costs, and alleviating the burden on patients.

[0013] Furthermore, the rotating mechanism is a rotating assembly and a driving gear, the rotating assembly is fixedly installed in the housing, the rotating assembly drives the driving gear to rotate, and the driving gear is meshed with both the first driven gear and the second driven gear.

[0014] In order to realize that the first clutch gear is slidably and rotatably arranged between the first driven gear and the first electromagnet, the first clutch mechanism further comprises a first guide rod, a first guide hole is provided on the first electromagnet, the first guide rod is slidably inserted in the first guide hole, and the first clutch gear is rotatably mounted on the first guide rod;

[0015] In order to realize the sliding and rotation of the second clutch gear between the second driven gear and the second electromagnet, the second clutch mechanism also includes a second guide rod, a second guide hole is opened on the second electromagnet, the first guide rod is slidably inserted in the second guide hole, and the second clutch gear is rotatably installed on the second guide rod.

[0016] The beneficial effects of the present invention are as follows: the electromagnetic clutch device of the present invention comprises a housing, a rotating mechanism, a first clutch mechanism and a second clutch mechanism, the first clutch mechanism comprises a first driven gear, a first clutch gear, a first transmission gear and a first electromagnet, the first clutch gear is slidably and rotatably arranged between the first driven gear and the first electromagnet, and meshing teeth that can mesh with each other are provided on two opposite surfaces of the first driven gear and the first clutch gear; the second clutch mechanism comprises a second driven gear, a second clutch gear, a second transmission gear and a second electromagnet, the second clutch gear is slidably and rotatably arranged between the second driven gear and the second electromagnet, and meshing teeth that can mesh with each other are provided on two opposite surfaces of the second driven gear and the second clutch gear; when the first clutch mechanism When the first clutch mechanism is working and the second clutch mechanism is not working: the first electromagnet is not working, the first clutch gear is meshed with the first driven gear under the action of the first reset component, and the second electromagnet is working, adsorbing the second clutch gear and separating it from the second driven gear; when the second clutch mechanism is working and the first clutch mechanism is not working: the second electromagnet is not working, the second clutch gear is meshed with the second driven gear under the action of the second reset component, and the first electromagnet is working, adsorbing the first clutch gear and separating it from the first driven gear; the present invention only includes one set of rotating mechanisms, which can realize the first clutch mechanism and the second clutch mechanism working at different times, and can be used in an infusion device in which one motor drives two automatic syringes, thereby reducing the overall price of the present invention, reducing medical costs, and alleviating the burden on patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is a two-dimensional schematic diagram of the present invention.

[0019] In the figure: 41. first driven gear, 42. first clutch gear, 43. first transmission gear, 44. first electromagnet, 45. first compression spring, 46. first guide rod, 51. second driven gear, 52. second clutch gear, 53. second transmission gear, 54. second electromagnet, 55. second compression spring, 56. second guide rod, 61. motor, 62. driving gear. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0021] like Figure 1An electromagnetic clutch device is shown, and the present invention is used in a double-chamber injection device. The double-chamber injection device includes a shell, and a first infusion mechanism, a second infusion mechanism, a first drive mechanism and a second drive mechanism are arranged in the shell. The present invention includes a shell, a rotating mechanism, a first clutch mechanism and a second clutch mechanism: the first clutch mechanism connects the rotating mechanism and the first drive mechanism for transmitting power, and the second clutch mechanism connects the rotating mechanism and the second drive mechanism for transmitting power.

[0022] The first clutch mechanism includes a first driven gear 41, a first clutch gear 42, a first transmission gear 43 and a first electromagnet 44. The first driven gear 41 is rotatably mounted in the housing and is transmission-connected to the rotating mechanism. The first electromagnet 44 is fixedly mounted in the housing. The first clutch gear 42 is slidably and rotationally arranged between the first driven gear 41 and the first electromagnet 44. Meshing teeth that can mesh with each other are provided on two opposite surfaces of the first driven gear 41 and the first clutch gear 42. A first reset component is arranged between the first electromagnet 44 and the first clutch gear 42. The first reset component is a first compression spring 45. The first transmission gear 43 is transmission-connected to the first clutch gear 42 and the first driving mechanism.

[0023] The second clutch mechanism comprises a second driven gear 51, a second clutch gear 52, a second transmission gear 53 and a second electromagnet 54. The second driven gear 51 is rotatably mounted in the housing and is transmission-connected to the rotating mechanism. The second electromagnet 54 is fixedly mounted in the housing. The second clutch gear 52 is slidably and rotationally arranged between the second driven gear 51 and the second electromagnet 54. Meshing teeth that can mesh with each other are provided on two opposite surfaces of the second driven gear 51 and the second clutch gear 52. A second reset component is arranged between the second electromagnet 54 and the second clutch gear 52. The second reset component is a second compression spring 55. The second transmission gear 53 is transmission-connected to the second clutch gear 52 and the second driving mechanism.

[0024] The first clutch mechanism further includes a first guide rod 46, a first guide hole is formed on the first electromagnet 44, the first guide rod 46 is slidably inserted in the first guide hole, and the first clutch gear 42 is rotatably mounted on the first guide rod 46; the second clutch mechanism further includes a second guide rod 56, a second guide hole is formed on the second electromagnet 54, the first guide rod 46 is slidably inserted in the second guide hole, and the second clutch gear 52 is rotatably mounted on the second guide rod 56. The control assembly is signal-connected to the rotating mechanism, the first electromagnet 44, and the second electromagnet 54.

[0025] The rotating mechanism is a rotating component and a driving gear 62. The rotating component can be a motor 61, which is fixedly installed in the housing. The driving gear 62 is coaxially and fixedly installed at the output end of the motor 61. The motor 61 drives the driving gear 62 to rotate, and the driving gear 62 is meshed with the first driven gear 41 and the second driven gear 51.

[0026] When the first clutch mechanism works and the second clutch mechanism does not work: the first electromagnet 44 does not work, the first clutch gear 42 meshes with the first driven gear 41 under the action of the first reset assembly, the motor 61 rotates, driving the driving gear 62 to rotate, the driving gear 62 drives the first driven gear 41 to rotate, the first driven gear 41 pushes the first clutch gear 42 to rotate synchronously, the first clutch gear 42 drives the first transmission gear 43 to rotate, the first transmission gear 43 drives the first output gear to rotate, the first output gear drives the first driving mechanism to work, and the first driving mechanism drives the liquid medicine in the first infusion mechanism to be pushed out of the first infusion mechanism; in this process, the second electromagnet 54 works, adsorbs the second clutch gear 52 and separates it from the second driven gear 51, the second driven gear 51 idles, the second clutch gear 52 does not rotate with the second driven gear 51, and the second infusion mechanism does not work;

[0027] When the second clutch mechanism works and the first clutch mechanism does not work: the second electromagnet 54 does not work, the second clutch gear 52 meshes with the second driven gear 51 under the action of the second compression spring 55, the motor 61 rotates, driving the driving gear 62 to rotate, the driving gear 62 drives the second driven gear 51 to rotate, the second driven gear 51 pushes the second clutch gear 52 to rotate synchronously, the second clutch gear 52 drives the second transmission gear 53 to rotate, the second transmission gear 53 drives the second output gear to rotate, the second output gear drives the second driving mechanism to work, the second driving mechanism drives the second infusion mechanism to push the liquid medicine out of the second infusion mechanism; in this process, the first electromagnet 44 works, adsorbs the first clutch gear 42 and separates it from the first driven gear 41, the first driven gear 41 idles, the first clutch gear 42 does not rotate with the first driven gear 41, and the first infusion mechanism does not work.

[0028] The electromagnetic clutch device of the present invention comprises a housing, a rotating mechanism, a first clutch mechanism and a second clutch mechanism, wherein the first clutch mechanism comprises a first driven gear 41, a first clutch gear 42, a first transmission gear 43 and a first electromagnet 44, wherein the first clutch gear 42 is slidably and rotatably arranged between the first driven gear 41 and the first electromagnet 44, and meshing teeth that can mesh with each other are provided on two opposite surfaces of the first driven gear 41 and the first clutch gear 42; the second clutch mechanism comprises a second driven gear 51, a second clutch gear 52, a second transmission gear 53 and a second electromagnet 54, wherein the second clutch gear 52 is slidably and rotatably arranged between the second driven gear 51 and the second electromagnet 54, and meshing teeth that can mesh with each other are provided on two opposite surfaces of the second driven gear 51 and the second clutch gear 52; when the first clutch mechanism When the first clutch mechanism is working and the second clutch mechanism is not working: the first electromagnet 44 is not working, the first clutch gear 42 is meshed with the first driven gear 41 under the action of the first reset component, and the second electromagnet 54 is working, adsorbing the second clutch gear 52 and separating it from the second driven gear 51; when the second clutch mechanism is working and the first clutch mechanism is not working: the second electromagnet 54 is not working, the second clutch gear 52 is meshed with the second driven gear 51 under the action of the second reset component, and the first electromagnet 44 is working, adsorbing the first clutch gear 42 and separating it from the first driven gear 41; the present invention only includes one set of rotating mechanisms, which can realize the first clutch mechanism and the second clutch mechanism working at different times, and can be used in an infusion device in which one motor 61 drives two automatic syringes, thereby reducing the overall price of the present invention, reducing medical costs, and alleviating the burden on patients.

[0029] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An electromagnetic clutch device, characterized in that: It includes a housing, a rotating mechanism, a first clutch mechanism and a second clutch mechanism: The first clutch mechanism comprises a first driven gear (41), a first clutch gear (42), a first transmission gear (43) and a first electromagnet (44); the first driven gear (41) is rotatably mounted in a housing and is transmission-connected to a rotating mechanism; the first electromagnet (44) is fixedly mounted in the housing; the first clutch gear (42) is slidably and rotationally arranged between the first driven gear (41) and the first electromagnet (44); meshing teeth that can mesh with each other are arranged on two opposite surfaces of the first driven gear (41) and the first clutch gear (42); a first reset assembly is arranged between the first electromagnet (44) and the first clutch gear (42); and the first transmission gear (43) is transmission-engaged with the first clutch gear (42); The second clutch mechanism comprises a second driven gear (51), a second clutch gear (52), a second transmission gear (53) and a second electromagnet (54); the second driven gear (51) is rotatably mounted in the housing and is transmission-connected to the rotating mechanism; the second electromagnet (54) is fixedly mounted in the housing; the second clutch gear (52) is slidably and rotationally arranged between the second driven gear (51) and the second electromagnet (54); meshing teeth that can mesh with each other are provided on two opposite surfaces of the second driven gear (51) and the second clutch gear (52); a second reset assembly is arranged between the second electromagnet (54) and the second clutch gear (52); and the second transmission gear (53) meshes with the second clutch gear (52); When the first clutch mechanism is in operation and the second clutch mechanism is not in operation: the first electromagnet (44) is not in operation, the first clutch gear (42) meshes with the first driven gear (41) under the action of the first reset assembly, and the second electromagnet (54) is in operation to attract and separate the second clutch gear (52) from the second driven gear (51); When the second clutch mechanism is in operation and the first clutch mechanism is not in operation, the second electromagnet (54) is not in operation, the second clutch gear (52) meshes with the second driven gear (51) under the action of the second reset assembly, and the first electromagnet (44) is in operation to attract and separate the first clutch gear (42) from the first driven gear (41).

2. The electromagnetic clutch device according to claim 1, characterized in that: The rotating mechanism comprises a rotating assembly and a driving gear (62). The rotating assembly is fixedly mounted in the housing. The rotating assembly drives the driving gear (62) to rotate. The driving gear (62) is meshed with both the first driven gear (41) and the second driven gear (51).

3. The electromagnetic clutch device according to claim 1, characterized in that: The first clutch mechanism further comprises a first guide rod (46), the first electromagnet (44) is provided with a first guide hole, the first guide rod (46) is slidably inserted in the first guide hole, and the first clutch gear (42) is rotatably mounted on the first guide rod (46); The second clutch mechanism also includes a second guide rod (56), the second electromagnet (54) is provided with a second guide hole, the first guide rod (46) is slidably inserted in the second guide hole, and the second clutch gear (52) is rotatably mounted on the second guide rod (56).

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