Grinding device for medicine detection

Abstract

The invention discloses a grinding device for medicine detection, and relates to the technical field of grinding devices.The grinding device comprises a shell, a lifting rotating module and a grinding pestle, a grinding cavity is formed in the shell, the lifting rotating module is fixedly installed at the top of the shell, and the output end of the lifting rotating module extends into the grinding cavity to be fixedly connected with the grinding pestle; the lifting rotating module can drive the grinding pestle to spirally ascend and descend in the grinding cavity in a reciprocating mode so as to grind medicine, and a grinding part matched with the bottom face of the grinding cavity is formed at the bottom end of the grinding pestle. The interior of the grinding pestle is hollow to form a vibration cavity, and a vibration stirring mechanism is mounted in the vibration cavity; the vibration stirring mechanism comprises a vertical shaft, an impact assembly and a locking assembly. While medicines are stirred, the reciprocating motion of the impact code can be automatically realized to impact the grinding pestle, and the impact force of the impact code is remarkably improved, so that the medicines attached to the grinding pestle are ensured to fall off through vibration.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to a grinding device for drug detection. Background Art

[0002] During the drug testing process, testers need to go through multiple steps, among which grinding the drug is a relatively important step. The drug grinding device determines the grinding quality of the drug.

[0003] China Publication No. CN118925891B discloses a drug sample grinding device for drug testing, which includes a base, a grinding cup is sleeved inside the base, a device cover is sleeved on the top of the grinding cup, the device cover is threadedly connected to the base, and a lifting and rotating module is fixedly connected to the top of the device cover... The magnetic circle block and the code collision block are both made of magnetic materials, and the magnetic circle block and the code collision block are arranged to repel each other magnetically. Although the patent uses the principle of magnetic repulsion between the magnetic circle block and the code collision block, during the continuous movement of the grinding pestle, the code collision block continuously drops and hits the grinding pestle, and the drugs attached to the grinding pestle are shaken off, thereby facilitating multiple grinding operations of the drugs, effectively improving the uniformity of drug grinding, and effectively reducing the grinding time of the drugs; However, this patent still has the following defects in actual use: 1. When the grinding pestle moves upward in the grinding cup, as the grinding pestle continues to move upward, the distance between the code block and the magnetic circle block continues to increase, and the repulsive force between the code block and the magnetic circle block continues to decrease. When the grinding pestle moves upward at a low speed, the spring will form a dynamic balance with the repulsive force, resulting in a smaller impact force when the code block contacts the grinding pestle, and a smaller vibration amplitude of the grinding pestle, which makes it impossible to shake off all the medicines attached to the grinding pestle.

[0004] 2. Although the patent can clamp the code collision block through the outer expansion circle to achieve the effect of energy storage, the code collision block is still affected by the repulsive force of the magnetic circle block during the descent process, which affects the impact force of the code collision block, and its effect needs to be improved.

[0005] 3. This patent cannot stir the compacted medicine adhered to the grinding cup, and thus cannot fully grind the medicine. The grinding effect needs to be improved. Summary of the invention

[0006] The object of the present invention is to provide a grinding device for drug testing to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: The present invention provides a grinding device for drug detection, comprising a shell, a lifting and rotating module and a grinding pestle, wherein a grinding chamber is formed in the shell, the lifting and rotating module is fixedly installed on the top of the shell, and the output end of the lifting and rotating module extends into the grinding chamber and is fixedly connected to the grinding pestle, the lifting and rotating module can drive the grinding pestle to reciprocate and spirally lift in the grinding chamber to grind the drug, and a grinding portion adapted to the bottom surface of the grinding chamber is formed at the bottom end of the grinding pestle; a vibration chamber is formed in the hollow interior of the grinding pestle, and a vibration stirring mechanism is installed in the vibration chamber; The vibration stirring mechanism includes a vertical shaft, an impact assembly and a locking assembly; the vertical shaft is fixedly arranged at the center of the vibration chamber, and a locking groove is provided on the vertical shaft; The impact assembly includes a sliding part sleeved on the vertical shaft, a stirring plate evenly fixed to the bottom of the sliding part along the circumferential direction, and a preload spring group for providing a downward elastic preload force to the sliding part, and the length of the stirring plate is greater than the thickness of the grinding part; The locking assembly is fixedly installed in the locking groove, and the locking assembly can lock the sliding part when the grinding pestle is at the lower limit position of its moving stroke, and release the locking of the sliding part when the grinding pestle is at the upper limit position of its moving stroke.

[0008] Furthermore, the grinding pestle includes the grinding part, a columnar enclosure plate arranged on the top of the grinding part and integrally formed with the grinding part, and a cover body threadedly connected to the top of the columnar enclosure plate; the grinding part, the columnar enclosure plate and the cover body together form the vibration chamber; the vertical shaft is fixedly arranged on the cover body, and the bottom end of the vertical shaft can contact the top of the grinding part after the cover body is connected to the columnar enclosure plate, and the cover body is fixedly connected to the output end of the lifting and rotating module.

[0009] Furthermore, the sliding part includes an impact code and a code pushing disk, the impact code and the code pushing disk are sleeved on the outside of the vertical axis, and the impact code is above the code pushing disk, and fixed columns are evenly arranged on the top of the code pushing disk along the circumferential direction; the pre-tightening elastic group includes a first pre-tightening spring for providing a downward elastic pre-tightening force to the code pushing disk so that the code pushing disk is tightly attached to the bottom surface of the vibration chamber, and a second pre-tightening spring for providing a downward elastic pre-tightening force to the impact code so that the impact code is tightly attached to the fixed column.

[0010] Furthermore, the locking groove includes a strip-shaped connecting groove arranged at the bottom end of the vertical axis, a triggering groove arranged along the radial direction of the vertical axis and connected with the bottom end of the strip-shaped connecting groove, and a snap-in groove arranged along the radial direction of the vertical axis and connected with the top end of the strip-shaped connecting groove; the locking assembly includes a triggering block slidably adapted in the triggering groove, a snap-in block slidably adapted in the snap-in groove, and a connecting strip slidably arranged in the strip-shaped connecting groove; the two ends of the connecting strip are respectively connected to the triggering block and the snap-in block, a reset spring is arranged on the side of the connecting strip away from the triggering block, and the first inclined surface and the second inclined surface are respectively arranged on the opposite sides of the triggering block and the snap-in block.

[0011] Furthermore, the shell comprises an upper shell and a lower shell, the upper shell and the lower shell are threadedly connected, and a grinding cup is adapted in the lower shell, and the interior of the grinding cup and the interior of the lower shell together form the grinding chamber.

[0012] Furthermore, the bottom end of the grinding cup is arc-shaped, the stirring plate is tiltedly arranged at the bottom of the code pushing disk, and the bottom surface of the stirring plate is adapted to the arc surface of the bottom of the grinding cup.

[0013] Furthermore, protrusions are evenly arranged on the bottom of the stirring plate, and gaps are formed between adjacent protrusions.

[0014] Furthermore, the moving stroke of the grinding pestle is greater than the length of the stirring plate.

[0015] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects: The present invention can automatically realize the reciprocating movement of the impact code to impact the grinding pestle while taking into account the stirring of the medicine, and significantly improves the impact force of the impact code to ensure that the medicine attached to the grinding pestle is shaken off.

[0016] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 yes Figure 2 Schematic diagram of the local structure at A; Figure 4 It is a schematic diagram of the internal structure of the grinding pestle of the present invention; Figure 5 It is a schematic diagram of the structure of the cover body and the vibration stirring mechanism of the present invention; Figure 6 yes Figure 5 Schematic diagram of the local structure at B; Figure 7 This is a schematic diagram of the first-view structure of the present invention after being split; Figure 8 It is a schematic diagram of the second viewing angle structure after splitting of the present invention.

[0019] In the figure: 1-shell; 11-grinding chamber; 12-upper shell; 13-lower shell; 14-grinding cup; 2-lifting and rotating module; 3-grinding pestle; 31-grinding part; 32-columnar enclosure; 33-cover; 4-vibration stirring mechanism; 41-vertical axis; 411-locking groove; 4111-strip connecting groove; 4112-triggering groove; 4113-clamping groove; 42-impact assembly; 421-sliding part; 4211-impact code; 4212-push code plate; 4213-fixed column; 422-stirring plate; 423-preload spring group; 4231-first preload spring; 4232-second preload spring; 43-locking assembly; 431-trigger block; 4311-first inclined plane; 432-clamping block; 4321-second inclined plane; 433-connecting strip; 434-reset spring. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0021] See also Figure 1-Figure 8 The present invention provides a grinding device for drug detection, comprising a housing 1, a lifting and rotating module 2 and a grinding pestle 3, wherein a grinding chamber 11 is formed in the housing 1, the lifting and rotating module 2 is fixedly mounted on the top of the housing 1, and the output end of the lifting and rotating module 2 extends to the grinding chamber 11 and is fixedly connected to the grinding pestle 3, the lifting and rotating module 2 can drive the grinding pestle 3 to reciprocate and spirally lift in the grinding chamber 11 to grind the drug, and a grinding portion 31 adapted to the bottom surface of the grinding chamber 11 is formed at the bottom end of the grinding pestle 3. When in use, the lifting and rotating module 2 drives the grinding pestle 3 to reciprocate and spirally lift in the grinding chamber 11 to grind the drug in the grinding chamber 11 multiple times through the grinding portion 31.

[0022] In order to adjust the distribution of drug particle size during the grinding process and shorten the drug grinding time; in this embodiment, the grinding pestle 3 is hollow inside to form a vibration cavity, and a vibration stirring mechanism 4 is installed in the vibration cavity; like Figure 2-Figure 4 As shown, the vibration stirring mechanism 4 includes a vertical shaft 41, an impact assembly 42 and a locking assembly 43; the vertical shaft 41 is fixedly arranged at the center position of the vibration chamber, and a locking groove 411 is opened on the vertical shaft 41; the impact assembly 42 includes a sliding part 421 sleeved on the vertical shaft 41, a stirring plate 422 evenly fixed at the bottom of the sliding part 421 along the circumferential direction, and a preload spring group 423 for providing a downward elastic preload force to the sliding part 421, and the length of the stirring plate 422 is greater than the thickness of the grinding part 31; the locking assembly 43 is fixedly installed in the locking groove 411, and the locking assembly 43 can lock the sliding part 421 when the grinding pestle 3 is at the lower limit position of its moving stroke, and release the lock of the sliding part 421 when the grinding pestle 3 is at the upper limit position of its moving stroke.

[0023] Based on the above arrangement, during the grinding process, when the grinding pestle 3 moves downward at the uppermost end of its moving stroke, under the elastic force of the preload spring group 423, the sliding portion 421 is at the lowermost part of the vibration chamber. At this time, the bottom end of the stirring plate 422 is below the grinding portion 31. As the grinding pestle 3 continues to move downward, when the bottom end of the stirring plate 422 contacts the bottom of the grinding chamber 11, the grinding pestle 3 can drive the stirring plate 422 to stir the medicine in the grinding chamber 11, so as to stir the medicine compacted and attached to the bottom of the grinding chamber 11, so that it is evenly distributed in the grinding chamber 11. During this process, the stirring plate 422 moves upward in the vibration chamber relative to the grinding pestle 3, and pushes the sliding part 421 to move upward so that the preload spring group 423 is compressed; when the grinding pestle 3 descends to the lowest end of its sliding stroke, the sliding part 421 rises to the highest point of its sliding stroke. At this time, the locking assembly 43 can lock the sliding part 421, that is, store energy (such as Figure 2 shown); When the grinding pestle 3 moves upward to the uppermost end of its sliding stroke, the locking assembly 43 releases the lock on the sliding portion 421. At this time, under the elastic action of the preload spring group 423, the sliding portion 421 can move downward quickly and hit the grinding portion 31, shaking off the medicine attached to the grinding pestle 3. This cycle is repeated to shorten the medicine grinding time.

[0024] like Figure 2As shown, in this embodiment, the grinding pestle 3 includes the grinding part 31, a columnar enclosure 32 disposed on the top of the grinding part 31 and integrally formed with the grinding part 31, and a cover body 33 threadedly connected to the top of the columnar enclosure 32; the grinding part 31, the columnar enclosure 32 and the cover body 33 together form the vibration chamber; the vertical shaft 41 is fixedly disposed on the cover body 33, and the bottom end of the vertical shaft 41 can contact the top of the grinding part 31 after the cover body 33 is connected to the columnar enclosure 32, and the cover body 33 is fixedly connected to the output end of the lifting and rotating module 2. Based on the above settings, the user can maintain and replace the vibration stirring mechanism 4 in the vibration chamber by disassembling the cover body 33 to ensure the grinding effect of the medicine.

[0025] like Figure 4 As shown, in this embodiment, the sliding portion 421 includes a collision code 4211 and a code pushing disk 4212, and the collision code 4211 and the code pushing disk 4212 are sleeved on the outside of the vertical axis 41, and the collision code 4211 is above the code pushing disk 4212, and the top of the code pushing disk 4212 is evenly provided with fixed columns 4213 along the circumferential direction; the pre-tightening elastic group includes a first pre-tightening spring 4231 for providing a downward elastic pre-tightening force to the code pushing disk 4212 so that the code pushing disk 4212 is tightly attached to the bottom surface of the vibration chamber, and a second pre-tightening spring 4232 for providing a downward elastic pre-tightening force to the collision code 4211 so that the collision code 4211 is tightly attached to the fixed column 4213.

[0026] like Figure 3 As shown, in this embodiment, the locking groove 411 includes a strip-shaped connecting groove 4111 arranged at the bottom end of the vertical axis 41, a triggering groove 4112 arranged along the radial direction of the vertical axis 41 and connected to the bottom end of the strip-shaped connecting groove 4111, and a snap-in groove 4113 arranged along the radial direction of the vertical axis 41 and connected to the top end of the strip-shaped connecting groove 4111; the locking assembly 43 includes a triggering block 431 slidably adapted in the triggering groove 4112, a snap-in block 432 slidably adapted in the snap-in groove 4113, and a connecting strip 433 slidably arranged in the strip-shaped connecting groove 4111; the two ends of the connecting strip 433 are respectively connected to the triggering block 431 and the snap-in block 432, a return spring 434 is arranged on the side of the connecting strip 433 away from the triggering block 431, and a first inclined surface 4311 and a second inclined surface 4321 are respectively arranged on the opposite sides of the triggering block 431 and the snap-in block 432.

[0027] Based on the above arrangement, in the process of the grinding pestle 3 moving downward, after the stirring plate 422 contacts the bottom of the grinding chamber 11, the grinding pestle 3 continues to move downward through the stirring plate 422, which can enable the code pushing plate 4212 to push the impact code 4211 to move upward, and the first preload spring 4231 and the second preload spring 4232 are compressed. As the grinding pestle 3 continues to move downward, when the impact code 4211 contacts the second inclined surface 4321 of the clamping block 432, the clamping block 432 can be pushed to move into the clamping groove 4113, so that the impact code 4211 can pass through the clamping block 432 smoothly. When the impact code 4211 completely passes through the clamping block 432, at this time, the clamping block 432 is moved out of the clamping groove 4113 under the action of the reset spring 434 to lock the impact code 4211, and at this time the grinding pestle 3 just drops to the lowest end of its moving stroke; When the grinding pestle 3 moves upward, under the elastic action of the first preload spring 4231, the code pusher 4212 moves downward so that the stirring plate 422 always contacts the bottom surface of the grinding chamber 11 to perform the stirring operation, and the impact code 4211 is locked by the clamping block 432 and keeps relatively still with the vertical shaft 41. As the grinding pestle 3 moves upward, when the code pusher 4212 moves and contacts the bottom of the vibration chamber, the code pusher 4212 can contact the first inclined surface of the trigger block 431. The surface 4311 causes the clamping block 432 to move into the triggering groove 4112. Since the two ends of the connecting strip 433 are respectively connected to the triggering block 431 and the clamping block 432, the clamping block 432 will be synchronously moved into the clamping groove 4113 during this process, that is, the lock of the impact code 4211 is released. The impact code 4211 moves down quickly under the action of the second preload spring 4232 and hits the code pushing disk 4212, causing the grinding pestle 3 to vibrate to shake off the medicine attached to the grinding pestle 3.

[0028] The present invention can automatically realize the reciprocating movement of the impact code 4211 to impact the grinding pestle 3 while taking into account the stirring of the medicine, and significantly improves the impact force of the impact code 4211 to ensure that the medicine attached to the grinding pestle 3 is shaken off.

[0029] In this embodiment, the shell 1 includes an upper shell 121 and a lower shell 131, the upper shell 121 and the lower shell 131 are threadedly connected, and a grinding cup 14 is adapted in the lower shell 131, and the interior of the grinding cup 14 and the interior of the lower shell 131 together form the grinding chamber 11 to facilitate the removal of medicines after grinding is completed.

[0030] In this embodiment, the bottom end of the grinding cup 14 is arc-shaped, the stirring plate 422 is tilted at the bottom of the code pushing disk 4212, and the bottom surface of the stirring plate 422 is adapted to the arc surface of the bottom of the grinding cup 14 to improve the grinding effect.

[0031] In this embodiment, the bottom of the stirring plate 422 is evenly provided with protrusions, and gaps are formed between adjacent protrusions. Based on the above design, the medicine can be better stirred and evenly distributed at the bottom of the grinding chamber 11.

[0032] In this embodiment, the moving stroke of the grinding pestle 3 is greater than the length of the stirring plate 422 .

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding device for drug testing, comprising a housing, a lifting and rotating module and a grinding pestle, wherein: A grinding chamber is formed in the shell, the lifting and rotating module is fixedly installed on the top of the shell, and the output end of the lifting and rotating module extends into the grinding chamber and is fixedly connected to the grinding pestle, the lifting and rotating module can drive the grinding pestle to reciprocate and spirally lift in the grinding chamber to grind the medicine, and the bottom end of the grinding pestle is formed with a grinding part adapted to the bottom surface of the grinding chamber; The invention is characterized in that the interior of the grinding pestle is hollow to form a vibration cavity, and a vibration stirring mechanism is installed in the vibration cavity; The vibration stirring mechanism includes a vertical shaft, an impact assembly and a locking assembly; the vertical shaft is fixedly arranged at the center of the vibration chamber, and a locking groove is provided on the vertical shaft; The impact assembly includes a sliding part sleeved on the vertical shaft, a stirring plate evenly fixed to the bottom of the sliding part along the circumferential direction, and a preload spring group for providing a downward elastic preload force to the sliding part, and the length of the stirring plate is greater than the thickness of the grinding part; The locking assembly is fixedly installed in the locking groove, and the locking assembly can lock the sliding part when the grinding pestle is at the lower limit position of its moving stroke, and release the locking of the sliding part when the grinding pestle is at the upper limit position of its moving stroke.

2. The grinding device for drug detection according to claim 1, characterized in that: The grinding pestle includes the grinding part, a columnar enclosure plate arranged on the top of the grinding part and formed integrally with the grinding part, and a cover body threadedly connected to the top of the columnar enclosure plate; the grinding part, the columnar enclosure plate and the cover body together form the vibration chamber; the vertical shaft is fixedly arranged on the cover body, and the bottom end of the vertical shaft can contact the top of the grinding part after the cover body is connected to the columnar enclosure plate, and the cover body is fixedly connected to the output end of the lifting and rotating module.

3. The grinding device for drug testing according to claim 1, characterized in that: The sliding part includes an impact code and a code pushing disk, the impact code and the code pushing disk are sleeved on the outside of the vertical axis, and the impact code is located above the code pushing disk, and fixed columns are evenly arranged on the top of the code pushing disk along the circumferential direction; the pre-tightening elastic group includes a first pre-tightening spring for providing a downward elastic pre-tightening force to the code pushing disk so that the code pushing disk is tightly attached to the bottom surface of the vibration cavity, and a second pre-tightening spring for providing a downward elastic pre-tightening force to the impact code so that the impact code is tightly attached to the fixed column.

4. The grinding device for drug detection according to claim 3, characterized in that: The locking groove includes a strip-shaped connecting groove arranged at the bottom end of the vertical axis, a triggering groove arranged along the radial direction of the vertical axis and connected with the bottom end of the strip-shaped connecting groove, and a snap-in groove arranged along the radial direction of the vertical axis and connected with the top end of the strip-shaped connecting groove; the locking assembly includes a triggering block slidably adapted in the triggering groove, a snap-in block slidably adapted in the snap-in groove, and a connecting strip slidably arranged in the strip-shaped connecting groove; the two ends of the connecting strip are respectively connected to the triggering block and the snap-in block, a reset spring is arranged on the side of the connecting strip away from the triggering block, and a first inclined surface and a second inclined surface are respectively arranged on the opposite sides of the triggering block and the snap-in block.

5. The grinding device for drug detection according to claim 3, characterized in that: The shell comprises an upper shell and a lower shell, the upper shell and the lower shell are threadedly connected, and a grinding cup is adapted in the lower shell, and the interior of the grinding cup and the interior of the lower shell are enclosed to form the grinding chamber.

6. The grinding device for drug detection according to claim 3, characterized in that: The bottom end of the grinding cup is in an arc shape, the stirring plate is arranged obliquely at the bottom of the code pushing disk, and the bottom surface of the stirring plate is matched with the arc surface of the bottom of the grinding cup.

7. The grinding device for drug detection according to claim 6, characterized in that: The bottom of the stirring plate is evenly provided with protrusions, and gaps are formed between adjacent protrusions.

8. The grinding device for drug detection according to claim 7, characterized in that: The moving stroke of the grinding pestle is greater than the length of the stirring plate.

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