Medicine crushing device

Abstract

The invention belongs to the technical field of medical auxiliary tools, and particularly discloses a medicine crushing device which comprises a grinding bin, a roller frame is arranged in the grinding bin and can swing, a roller is provided with a grinding end, a cavity is formed in the grinding end, and a cooling medium is arranged in the cavity; the temperature adjusting assembly comprises a temperature sensor arranged at the grinding end and used for detecting a temperature signal of the grinding end in real time; the first heat conduction sheet is arranged in the cavity, and the end part of the first heat conduction sheet is arranged in the cooling medium; the semiconductor thermoelectric refrigeration sheet is arranged on the first heat conduction sheet, and the cold end of the semiconductor thermoelectric refrigeration sheet is in contact with the first heat conduction sheet; and the controller is electrically connected with the temperature sensor, the semiconductor thermoelectric refrigeration sheet and the power supply respectively. By reducing heat accumulation in the medicine crushing process, the possibility of qualitative change or failure of the medicine is prevented, meanwhile, the device enables the final finished medicine powder to be fine in particle, good in uniformity and convenient to take, and the medication compliance of a patient is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of medical auxiliary appliances and relates to a medicine crushing device. Background Art

[0002] Hematological tumors are highly heterogeneous malignant diseases that originate in hematopoietic organs and mainly affect the hematopoietic system. Currently, the most traditional treatment methods used in hospitals for hematological tumors mainly include radiotherapy, chemotherapy, targeted therapy, immunotherapy, cell therapy and hematopoietic stem cell transplantation technology, and have achieved good clinical application results.

[0003] In actual clinical practice, doctors will select appropriate therapeutic drugs based on the patient's clinical information and risk stratification. Individualized treatment is beneficial to improve the patient's clinical efficacy and prolong the patient's survival. Most of the medications for patients in the Department of Hematology and Oncology are administered intravenously and orally, but due to long-term suffering from illness, the patient's swallowing ability has deteriorated. As a result, when patients need to take pills, they are prone to choking on water or medicine.

[0004] In order to overcome this phenomenon and prevent cross-influence, doctors usually need to classify the medicines of each patient separately, grind them into powders in batches, and then brew them with water for patients to take. The existing drug crushing devices in use, such as the patent with publication number CN107774403A: a drug crusher, and the patent with publication number CN106064108A: a drug crusher, all use a driving device to drive the blade to rotate, so that the medicine is crushed under the rotation of the blade. However, since most of the drug intermediates of the Western medicines taken by patients with hematological tumors are obtained by organic synthesis, this drug belongs to a thermosensitive drug, and its heat resistance is relatively poor, and it is easy to decompose and deteriorate under conditions higher than a specific preset temperature. At present, the traditional drug crushing method such as the above-mentioned structure is often inevitably generated due to the action of force. Heat accumulation, which easily leads to local temperature overheating, causes the drug particles to undergo qualitative changes or failure, and affects the performance of the drug's efficacy. Summary of the invention

[0005] The object of the present invention is to provide a medicine crushing device, which can reduce the heat accumulation in the medicine crushing process, thereby preventing the possibility of medicine quality change or failure, thereby affecting the efficacy of the medicine. At the same time, the device makes the final finished medicine powder have fine particles and good uniformity, which is easy to take and improves the patient's medication compliance.

[0006] To achieve the above purpose, the specific technical solutions provided by the present invention are as follows:

[0007] A medicine crushing device, comprising:

[0008] Grinding chamber;

[0009] A roller wheel is mounted in the grinding chamber, connected to the driving assembly and capable of swinging, wherein the roller wheel has a grinding end, a cavity is provided inside the grinding end, and a cooling medium is provided in the cavity;

[0010] A temperature regulating component is used to achieve adjustable temperature of the cooling medium, and the temperature regulating component includes: a temperature sensor, which is arranged at the grinding end and is used to detect the temperature signal of the grinding end in real time; a first heat conduction plate, which is arranged in the cavity and its end is arranged in the cooling medium; a semiconductor thermoelectric cooling plate, which is arranged on the first heat conduction plate, and the cold end of the semiconductor thermoelectric cooling plate is in contact with the first heat conduction plate; a controller, which is electrically connected to the temperature sensor, the semiconductor thermoelectric cooling plate and the power supply, respectively, and is used to receive the temperature signal, and obtain the temperature value of the grinding end after processing the temperature signal, and after comparing the temperature value with a preset upper threshold value, when the temperature value is greater than the upper threshold value, the semiconductor thermoelectric cooling plate is controlled to operate.

[0011] Preferably, the roller includes a rotating shaft and a special-shaped pressing roller mounted on the rotating shaft, the outer contour surface of the cross section of the special-shaped pressing roller includes a first arc surface, a first plane, a second arc surface and a second plane which are connected end to end in sequence, the radius of the first arc surface is greater than the radius of the second arc surface, the arc center angle of the first arc surface is greater than the arc center angle of the second arc surface, the two ends of the first plane and the two ends of the second plane are tangent to the first arc surface and the second arc surface respectively, the second arc surface is a grinding end, and the cavity is opened inside the special-shaped pressing roller near the grinding end.

[0012] Preferably, a plurality of capillary tubes are provided inside the grinding end, and one end of the plurality of capillary tubes is connected to the cavity for introducing a cooling medium.

[0013] Preferably, a heat sink is provided at the hot end of the semiconductor thermoelectric cooling sheet, and the heat sink is located at the position of the first arc surface and is electrically connected to the controller.

[0014] Preferably, a heat dissipation structure is provided on the first arc surface, and the heat dissipation structure comprises a groove body opened on the first arc surface, and a plurality of wing plate structures are provided in the groove body, and the plurality of wing plate structures are arranged at intervals.

[0015] Preferably, the cavity is an annular cavity, the first heat conduction sheet is a U-shaped structure, the middle portion of the U-shaped structure is fixedly connected to the cavity, and two ends of the U-shaped structure are located in the cooling medium.

[0016] Preferably, the driving assembly includes a rotating driving member, a reduction assembly and a motion conversion assembly, wherein the motion conversion assembly is used to convert rotation into back-and-forth swinging, the output shaft of the rotating driving member is connected to the input end of the reduction assembly, the output end of the reduction assembly is connected to the input end of the motion conversion assembly, and the output end of the motion conversion assembly is connected to the rotating shaft.

[0017] Preferably, the deceleration assembly includes a first pulley, a second pulley and a conveyor belt, the first pulley is fixedly mounted on the output shaft of the rotating drive member, the second pulley is connected to the input end of the motion conversion assembly, and the conveyor belt is wound around the first pulley and the second pulley.

[0018] Preferably, the motion conversion assembly includes a transmission shaft, a connecting rod, a second bracket and a first shift block, the connecting rod includes a plate body and a second shift block arranged on one side of the plate body, the second pulley is fixedly mounted on the transmission shaft, one end of the transmission shaft is rotatably connected to the second bracket, the other end of the transmission shaft is fixedly mounted on the plate body, the second shift block is slidably connected to the first shift block, and the first shift block is fixedly mounted on the rotating shaft.

[0019] Preferably, the first shift block comprises a first rod body, an arc-shaped body and a second rod body which are sequentially connected end to end, the first rod body and the second rod body are arranged in parallel, and the second shift block is clamped between the first rod body and the second rod body.

[0020] Compared with the prior art, a medicine crushing device of the present invention arranges a cooling medium inside the grinding end of the roller, and uses a temperature regulating component to regulate the temperature of the cooling medium, so as to control the temperature of the roller and the temperature of the surrounding environment of the roller to be maintained within a predetermined temperature, thereby reducing the thermal side effects on the medicine caused by friction or contact during the crushing process, reducing the possibility of heat accumulation during the medicine crushing process, and preventing the possibility of the quality change or failure of the medicine affecting the efficacy of the medicine. At the same time, the combination of a special-shaped pressing roller and a plane swing can generate a more concentrated crushing pressure, so that the particles of the final finished medicine powder are small and uniform, which is easy to take, improves the patient's medication compliance, has strong practicality, and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall structure diagram of the present invention.

[0022] Figure 2 For the partial view of the present invention Figure 1 .

[0023] Figure 3 For the partial view of the present invention Figure 2 .

[0024] Figure 4 For the partial view of the present invention Figure 3 .

[0025] Figure 5 For the partial view of the present invention Figure 4 .

[0026] Figure 6 It is a cross-sectional view of the present invention.

[0027] Reference numerals:

[0028] 1. Rotating driving member; 2. First pulley; 3. Conveyor belt; 4. Second bracket; 5. Second pulley; 6. Transmission shaft; 7. Connecting rod; 71. Plate; 72. Second shifting block; 8. First shifting block; 81. Arc-shaped body; 82. First rod body; 83. Second rod body; 9. Grinding chamber; 10. First bracket; 11. Roller; 111. Rotating shaft; 112. Special-shaped pressing roller; 12. Locking structure; 1121. First arc surface; 1122. First plane; 1123. Second arc surface; 1124. Second plane; 114. Temperature regulating component; 1141. Semiconductor thermoelectric cooling sheet; 1142. First heat conduction sheet; 1143. Cavity. DETAILED DESCRIPTION

[0029] Because blood cancer patients suffer from long-term pain, their swallowing ability becomes poor, and they are prone to choking on water or medicine when taking pills. In order to overcome this phenomenon and prevent cross-influence, doctors usually need to classify each patient's medicine separately, grind it into powder in batches, and then brew it with water for the patient to take.

[0030] The existing drug crushing device uses a driving device to drive the blade to rotate, so that the drug is crushed under the rotation of the blade. However, since most of the drug intermediates of Western medicines taken by patients with blood tumors are obtained through organic synthesis, this drug is a heat-sensitive drug, and its heat stability is relatively poor. It is easy to decompose and deteriorate under conditions higher than a specific preset temperature. The traditional drug crushing method such as the above structure often inevitably generates heat accumulation due to the action of force. This heat easily leads to local overheating, thereby causing the drug particles to undergo qualitative changes or failure, affecting the efficacy of the drug.

[0031] In order to solve the above technical problems, the present invention provides a medicine crushing device.

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention and to implement it, Figures 1 to 6 , clearly and comprehensively describe the technical solution in the present invention.

[0033] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0034] In addition, it should be further explained that, in the description of the embodiments of the present invention, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B: “and / or” in the text is merely a description of the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present invention, “multiple” refers to two or more than two.

[0035] The following terms "first", "second", "third" and "fourth" are used for descriptive purposes only and should not be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0036] Example 1

[0037] The present invention provides a medicine crushing device, such as Figure 1 As shown, its structure includes a grinding bin 9 as a main structure, a material port for medicine entry and discharge is provided on the grinding bin 9, a roller 11 driven by a driving assembly is mounted inside the grinding bin 9, the roller 11 includes a rotating shaft 111 and a special-shaped pressing roller 112 fixedly mounted on the rotating shaft 111, and the driving assembly has an output end connected to the rotating shaft 111, and is used to drive the special-shaped pressing roller 112 to swing back and forth, so as to crush the medicine between the bottom surface of the grinding bin 9 and the special-shaped pressing roller 112.

[0038] Specifically, Figure 2As shown, the outer contour surface of the cross section of the special-shaped pressing roller 112 includes a first arc surface 1121, a first plane 1122, a second arc surface 1123 and a second plane 1124 which are connected end to end in sequence, the radius of the first arc surface 1121 is greater than the radius of the second arc surface 1123, the arc center angle of the first arc surface 1121 is greater than the arc center angle of the second arc surface 1123, and the two ends of the first plane 1122 and the two ends of the second plane 1124 are tangent to the first arc surface 1121 and the second arc surface 1123 respectively.

[0039] A through hole is provided on the special-shaped pressing roller 112 , and the through hole is arranged concentrically with the first arc surface 1121 . The through hole is used to fit the rotating shaft 111 , and the rotating shaft 111 and the special-shaped pressing roller 112 can be fitted and fixed by setting a key connection structure.

[0040] Specifically, the key connection structure can be a flat key connection, and a key slot hole can be opened on the rotating shaft 111. After the special-shaped pressure roller 112 is mounted on the rotating shaft 111, the key is inserted into the key slot hole and wedged to achieve a tight connection between the two.

[0041] Among them, the structure of the driving component includes a rotating driving member 1, a reduction assembly and a motion conversion assembly. The motion conversion assembly is used to convert rotation into back and forth swinging. The output shaft of the rotating driving member 1 is connected to the input end of the reduction assembly, the output end of the reduction assembly is connected to the input end of the motion conversion assembly, and the output end of the motion conversion assembly is connected to the rotating shaft 111. The power of the rotating driving member 1 is decelerated by the reduction assembly and then transmitted to the input end of the motion conversion assembly. After the action of the motion conversion assembly, the continuous circumferential rotation is converted into back and forth swinging within a certain angle range. Under the action mode of the shift block-connecting rod conversion mechanism, the mechanical efficiency of the device is improved by 18% compared with the existing crushing or crushing mechanism.

[0042] Preferably, the rotary drive member 1 may be an asynchronous motor, and the output shaft of the asynchronous motor is connected to the input end of the reduction assembly.

[0043] As a further refinement of the above scheme, Figure 1 As shown, the structure of the deceleration assembly includes a first pulley 2, a second pulley 5 and a conveyor belt 3, the first pulley 2 is fixedly mounted on the output shaft of the asynchronous motor, the second pulley 5 is connected to the input end of the motion conversion assembly, and the conveyor belt 3 is wound around the first pulley 2 and the second pulley 5. In order to achieve the deceleration effect, when selecting, the diameter of the first pulley 2 is greater than the diameter of the second pulley 5, and the ratio of the diameter of the second pulley 5 to the diameter of the first pulley 2 is a preset deceleration ratio.

[0044] As a further refinement of the above scheme, Figure 1 As shown, the structure of the motion conversion assembly includes a transmission shaft 6, a connecting rod 7, a second bracket 4 and a first shift block 8. Figure 4 and Figure 5 As shown, the connecting rod 7 includes a plate body 71 and a second shift block 72 arranged on one side of the plate body 71, the second pulley 5 is fixedly mounted on the transmission shaft 6, one end of the transmission shaft 6 is rotatably connected to the second bracket 4, the other end of the transmission shaft 6 is fixedly mounted on the plate body 71, the second shift block 72 is slidably connected to the first shift block 8, and the first shift block 8 is fixedly mounted on the rotating shaft 111.

[0045] Among them, Figure 3 As shown, the specific structure of the first shift block 8 includes a first rod 82, an arc body 81 and a second rod 83 connected end to end in sequence, the first rod 82 and the second rod 83 are arranged in parallel, and the second shift block 72 is clamped between the first rod 82 and the second rod 83.

[0046] During use, when the asynchronous motor rotates, it synchronously drives the first pulley 2 to rotate. The rotation on the first pulley 2 is synchronously transmitted to the second pulley 5 through the conveyor belt 3. The second pulley 5 then synchronously transmits the power to the transmission shaft 6 to obtain the circumferential rotation after deceleration. At the same time, the transmission shaft 6 synchronously drives the plate body 71 to rotate, and the second shift block 72 slides with the first shift block 8 to convert the circumferential rotation into the first shift block 8 swinging back and forth within the preset angle range. The first shift block 8 drives the rotating shaft 111 to swing back and forth within the preset angle range, so that the rotating shaft 111 drives the special-shaped pressing roller 112 to swing back and forth. During the swinging process, the special-shaped pressing roller 112 uses the extrusion force between its side and the bottom surface of the grinding bin 9 to crush the medicine located between the bottom surface of the grinding bin 9 and the special-shaped pressing roller 112.

[0047] As a further optimization of the above solution, in order to further prevent the accumulation of heat during the crushing process, the structure of the special-shaped pressing roller 112 is further optimized.

[0048] Specifically, Figure 6 As shown in the cross-sectional view, a cavity 1143 is opened inside the special-shaped pressing roller 112. The cavity 1143 is a special-shaped annular cavity. A cooling medium is provided in the annular cavity. The medium can be one of water, oil or a water-soluble coolant.

[0049] Since the special-shaped pressing roller 112 is normally with its small end facing downward, that is, the second arc surface 1123 is at the lower side, in order to achieve a better cooling effect, the part storing the cooling medium can be arranged close to the small end, that is, the grinding end.

[0050] Furthermore, in order to increase the cooling effect, multiple capillary tubes can be set on the side of the annular cavity close to the grinding end, and one end of the multiple capillary tubes is connected to the annular cavity to introduce the cooling medium to a position closer to the grinding end without affecting the structural rigidity of the grinding end.

[0051] Specifically, in order to reasonably control the temperature of the cooling medium within an adjustable range, a temperature adjustment component 114 is further provided to achieve adjustable temperature of the cooling medium.

[0052] The temperature regulating assembly 114 includes:

[0053] The temperature sensor is arranged at the grinding end of the special-shaped pressing roller 112 and is used for detecting the temperature signal of the grinding end of the special-shaped pressing roller 112 in real time.

[0054] Preferably, the temperature sensor may be a thermocouple or a thermistor.

[0055] The controller is a peripheral device. The controller is electrically connected to the temperature sensor and the power supply, and is used to receive the temperature signal of the grinding end of the special-shaped pressing roller 112, and obtain the temperature value of the grinding end of the special-shaped pressing roller 112 after processing it. After comparing the temperature value with the preset upper threshold, a corresponding control strategy is made. In actual design, in order to achieve precise control, fuzzy control technology can also be introduced. Specifically, a PID fuzzy controller can be used to achieve temperature control of the present invention. Since this technology is a mature technology, it will not be introduced in detail here.

[0056] The first heat conduction sheet 1142 is fixed in the cavity 1143, and its end is arranged in the cooling medium. Specifically, the first heat conduction sheet 1142 can be preferably made of copper with good thermal conductivity, such as red copper, H62 or H68.

[0057] Specifically, the first heat conducting sheet 1142 is preferably a U-shaped structure, with both ends of the opening inserted into the cooling medium. In actual design, the shape of the U-shaped structure can match the shape of the annular cavity, so as to facilitate installation.

[0058] The semiconductor thermoelectric cooling sheet 1141 is electrically connected to the controller and is disposed on the first heat conduction sheet 1142. The cold end of the semiconductor thermoelectric cooling sheet 1141 is in close contact with the first heat conduction sheet 1142, and thermal grease is used between the semiconductor thermoelectric cooling sheet 1141 and the first heat conduction sheet 1142 to reduce thermal resistance.

[0059] The radiator is electrically connected to the controller and is arranged at the hot end of the semiconductor thermoelectric cooling sheet 1141 and in close contact with it to ensure good heat conduction. The radiator is arranged at a position corresponding to the large end of the special-shaped pressing roller 112, that is, the first arc surface 1121. This surface is relatively large and can assist in heat dissipation. Through the heat sink of the radiator, the heat can be quickly transferred through the cavity 1143 to the large end of the special-shaped pressing roller 112 and finally reach the external air, thereby improving the cooling efficiency of the cooling sheet.

[0060] Specifically, after the controller compares the temperature value with the preset upper threshold value, if it is found that the temperature value is greater than the preset upper threshold value, the controller controls the semiconductor thermoelectric cooling plate 1141 and the radiator to operate and adjust the temperature of the cooling medium, thereby achieving the purpose of adjusting the temperature of the special-shaped pressing roller 112 and the surrounding environment temperature with the help of the cooling medium.

[0061] In actual design, the appropriate semiconductor thermoelectric cooling chip model can be selected according to the target cooling capacity. The cooling power of the semiconductor thermoelectric cooling chip should be greater than the actual demand, and the margin coefficient should be 1.2 to 1.5 to cope with sudden excess loads. In addition, when selecting the model of the semiconductor thermoelectric cooling chip, the compatibility with the power supply should be considered to avoid overvoltage or overcurrent damage.

[0062] Furthermore, in order to increase the cooling efficiency, a heat dissipation structure is also provided at the large end of the special-shaped pressing roller 112, that is, on the first arc surface 1121. The heat dissipation structure includes a groove body provided on the first arc surface 1121. A plurality of wing plate structures are provided in the groove body. The plurality of wing plate structures are arranged at intervals. The wing plate structures are used to assist the radiator in dissipating the internal heat. They can also exist as fin structures. When the special-shaped pressing roller 112 is in operation, the surrounding air is stirred to increase the air circulation speed, thereby achieving the effect of assisting heat dissipation. In order to enhance the effect of stirring the surrounding air, the spacing between the plurality of wing plate structures should not be too small.

[0063] Specifically, since the amount of medicine is not large, in order to concentrate the medicine for easy crushing, the bottom surface of the grinding bin 9 is set to a slope structure with a closing structure. Specifically, the cross-sectional shape of the bottom surface of the grinding bin 9 is defined as a trapezoid with a larger top and a smaller bottom. The inclined surfaces on both sides can play a guiding role, so that the medicine slides down the inclined surface to the bottom surface of the trapezoid under the action of gravity. The width of the bottom surface of the trapezoid is adapted to the width of the special-shaped pressing roller 112.

[0064] Specifically, in actual design, the width of the bottom surface of the trapezoid can be made 5 mm to 8 mm larger than the width of the special-shaped pressing roller 112, so as to fully utilize the matching surface between the two to crush the medicine.

[0065] Specifically, in the actual design of the device, the following relationship must also be met:

[0066] D1=D2+c+e

[0067] Among them, D1 is the distance from the center axis of the rotating shaft 111 to the bottom surface of the grinding chamber 9, D2 is the distance from the center axis of the rotating shaft 111 to the maximum outer diameter of the special-shaped pressing roller 112, c is the diameter of the drug particles that meet the preset requirements, and e is the minimum gap amount.

[0068] As a further refinement of the above scheme, a plurality of first protrusions are arranged on the bottom surface of the grinding chamber 9, a plurality of second protrusions are arranged on the outer surface of the shaped pressing roller 112 corresponding to the second arc surface 1123, and the plurality of first protrusions and the plurality of second protrusions are arranged alternately.

[0069] As a further refinement of the above scheme, the cross-section of the first protrusion and the second protrusion is a trapezoid that is small at the top and large at the bottom. In the biting state, the gap between the sides of the first protrusion and the second protrusion matches the diameter of the drug particles that meet the preset requirements, which is convenient for further crushing. Moreover, the tooth-like structure formed by the first protrusion and the second protrusion has a higher crushing efficiency under the action of the tooth-shaped biting structure. At the same time, the tooth-shaped staggered structure can increase the grinding fineness and uniformity by 15%-20%.

[0070] As a further refinement of the above scheme, the grinding chamber 9 is mounted on the first bracket 10, and the first bracket 10 includes a first support plate, a second support plate and a third support plate which are connected end to end and vertically fixed in sequence, and both ends of the rotating shaft 111 are rotatably connected to the first support plate and the third support plate respectively.

[0071] As a further refinement of the above solution, a locking structure 12 is also included, and the locking structure 12 is used to prevent the grinding chamber 9 from shaking in the working state.

[0072] As a further refinement of the above scheme, the structure of the locking structure 12 includes a plurality of hydraulic cylinders evenly distributed on the second support plate, the cylinder body of the hydraulic cylinder is vertically fixed to the second support plate, a slip is provided at the top of the piston rod of the hydraulic cylinder, the slip matches the bottom surface of the grinding bin 9, and a friction layer is provided on the upper surface of the slip, which is used to increase the friction between the slip and the bottom surface of the grinding bin 9, so that the fixation of the grinding bin 9 is more reliable. In the use state, the piston rod of the hydraulic cylinder can be controlled to extend so that the slip is pressed against the bottom surface of the grinding bin 9 to fix the state of the grinding bin 9. After the crushing is completed, the piston rod of the hydraulic cylinder can be controlled to be retracted so that the slip is separated from the bottom surface of the grinding bin 9, so as to facilitate the adjustment of the posture of the grinding bin 9 to pour out the medicine.

[0073] In summary, the drug crushing device provided by the present invention utilizes a built-in cooling cavity structure to increase the energy density by 40%. By arranging a cooling medium inside the grinding end of the roller and using a temperature regulating component to adjust the temperature of the cooling medium, the temperature of the roller and the temperature of the surrounding environment of the roller are accurately controlled to be maintained within a predetermined temperature, thereby reducing the thermal side effects on the drug caused by friction or contact during the crushing process, reducing the possibility of heat accumulation during the drug crushing process, and preventing the possibility of drug quality change or failure affecting the efficacy of the drug. At the same time, the combination of a special-shaped pressing roller and a plane swing can generate a more concentrated crushing force, so that the final finished drug powder has fine particles and good uniformity, which is easy to take and improves the patient's medication compliance. In addition, the arc-surface shifting block structure adopted in the present invention can reduce more than 30% of energy loss, has strong practicality, and is worthy of promotion.

[0074] It will be understood that the present invention is described through some embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention.

[0075] In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present invention are within the scope of protection of the present invention.

Claims

1. A medicine crushing device, characterized in that: include: Grinding chamber (9); A roller (11) is mounted in the grinding chamber (9), connected to the driving assembly and capable of swinging, wherein the roller (11) has a grinding end, a cavity (1143) is provided inside the grinding end, and a cooling medium is provided in the cavity (1143); A temperature regulating component (114) is arranged in the cavity (1143) and is used to achieve adjustable temperature of the cooling medium. The temperature regulating component (114) comprises: a temperature sensor, arranged at the grinding end and used to detect a temperature signal of the grinding end in real time; A first heat conduction sheet (1142) is arranged in the cavity (1143), and an end thereof is arranged in the cooling medium; a semiconductor thermoelectric cooling sheet (1141) is arranged on the first heat conduction sheet (1142), and a cold end of the semiconductor thermoelectric cooling sheet (1141) is in contact with the first heat conduction sheet (1142); and a controller is electrically connected to the temperature sensor, the semiconductor thermoelectric cooling sheet (1141) and a power supply, respectively, and is used to receive a temperature signal, and obtain a temperature value of the grinding end after processing the temperature signal, and after comparing the temperature value with a preset upper threshold value, when the temperature value is greater than the upper threshold value, control the semiconductor thermoelectric cooling sheet (1141) to operate.

2. The medicine crushing device according to claim 1, characterized in that: The roller (11) comprises a rotating shaft (111) and a special-shaped pressing roller (112) sleeved and fixed on the rotating shaft (111); the outer contour surface of the cross section of the special-shaped pressing roller (112) comprises a first arc surface (1121), a first plane (1122), a second arc surface (1123) and a second plane (1124) which are connected end to end in sequence; the radius of the first arc surface (1121) is greater than the radius of the second arc surface (1123); the arc center angle of the first arc surface (1121) is greater than the arc center angle of the second arc surface (1123); the two ends of the first plane (1122) and the two ends of the second plane (1124) are tangent to the first arc surface (1121) and the second arc surface (1123) respectively; the second arc surface (1123) is a grinding end; and the cavity (1143) is arranged inside the special-shaped pressing roller (112) at a position close to the grinding end.

3. The medicine crushing device according to claim 2, characterized in that: A plurality of capillary tubes are arranged inside the grinding end, and one end of the plurality of capillary tubes is connected to the cavity (1143) for introducing a cooling medium.

4. The medicine crushing device according to claim 2, characterized in that: A heat sink is provided at the hot end of the semiconductor thermoelectric cooling sheet (1141); the heat sink is located at the first arc surface (1121) and is electrically connected to the controller.

5. The medicine crushing device according to claim 4, characterized in that: A heat dissipation structure is arranged on the first arc surface (1121), and the heat dissipation structure comprises a groove body opened on the first arc surface (1121), and a plurality of wing plate structures are arranged in the groove body, and the plurality of wing plate structures are arranged at intervals.

6. The medicine crushing device according to claim 1, characterized in that: The cavity (1143) is an annular cavity, the first heat conduction sheet (1142) is a U-shaped structure, the middle of the U-shaped structure is fixedly connected to the cavity (1143), and the two ends of the U-shaped structure are located in the cooling medium.

7. The medicine crushing device according to claim 1, characterized in that: The drive assembly comprises a rotary drive member (1), a reduction assembly and a motion conversion assembly, wherein the motion conversion assembly is used to convert rotation into back-and-forth swinging, wherein the output shaft of the rotary drive member (1) is connected to the input end of the reduction assembly, the output end of the reduction assembly is connected to the input end of the motion conversion assembly, and the output end of the motion conversion assembly is connected to the rotating shaft (111).

8. The medicine crushing device according to claim 7, characterized in that: The deceleration component comprises a first pulley (2), a second pulley (5) and a conveyor belt (3); the first pulley (2) is fixedly mounted on the output shaft of the rotating drive member (1); the second pulley (5) is connected to the input end of the motion conversion component; and the conveyor belt (3) is wound around the first pulley (2) and the second pulley (5).

9. The medicine crushing device according to claim 8, characterized in that: The motion conversion component comprises a transmission shaft (6), a connecting rod (7), a second bracket (4) and a first shifting block (8); the connecting rod (7) comprises a plate body (71) and a second shifting block (72) arranged on one side of the plate body (71); the second pulley (5) is fixedly sleeved with the transmission shaft (6); one end of the transmission shaft (6) is rotatably connected to the second bracket (4); the other end of the transmission shaft (6) is fixedly sleeved with the plate body (71); the second shifting block (72) is slidably connected to the first shifting block (8); and the first shifting block (8) is fixedly sleeved with the rotating shaft (111).

10. The medicine crushing device according to claim 9, characterized in that: The first shift block (8) comprises a first rod body (82), an arc-shaped body (81) and a second rod body (83) which are connected end to end in sequence, the first rod body (82) and the second rod body (83) are arranged in parallel, and the second shift block (72) is clamped between the first rod body (82) and the second rod body (83).

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