Traditional Chinese medicine material filtering screen assembly

Abstract

The utility model discloses a traditional chinese medicinal material filters screen net subassembly, include: lower sieve frame, and the lower sieve frame four corners are fixed with the stud, upper sieve frame, and the upper sieve frame detachable connection is in the lower sieve frame upper end, and the stud upper portion is inserted with the upper sieve frame and is set, and the stud outside thread joint has with the upper sieve frame close nut. After placing the traditional chinese medicinal material that needs screening in the upper sieve net, the traditional chinese medicinal material first passes through the upper sieve net and is screened, then passes through the lower sieve net and is screened, and when needing to replace the upper sieve net or the lower sieve net, can draw out by pinching the hollow handle, before drawing out, need to rotate the knob, utilize the gear and rack mechanism to drive half ring clamp and draw close interval movement and separate with the stud, and in this way, the upper sieve net or the lower sieve net is relieved from the location, and the cooperation of half ring clamp and two studs in front can also prevent two nuts in front from moving up the stud because of vibration, in this way, the convenience of replacing the upper sieve net or the lower sieve net, guarantee the connection stability between the lower sieve frame and the upper sieve frame.

Description

Technical Field

[0001] This utility model relates to the field of filter screen technology, and in particular to a filter screen assembly for Chinese medicinal materials. Background Technology

[0002] Traditional Chinese medicinal herbs are unique, native medicinal materials found only in my country. They are used to treat diseases and mainly include the roots, stems, flowers, and fruits of various plants. During the processing of traditional Chinese medicinal herbs, it is necessary to separate the herbs from dust and impurities to improve their quality. This requires screening the herbs into coarse and fine particles.

[0003] Currently, the screens in the filter screen assembly for Chinese medicinal materials are fixed and cumbersome to replace. Tools are needed to remove multiple bolts or fasteners one by one to take the screen out from inside the screen frame, which greatly reduces the efficiency of maintaining and replacing screens of different mesh sizes and affects the production rhythm. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art and provide a Chinese herbal medicine filter screen assembly to solve the problems mentioned in the background art.

[0005] A filter screen assembly for Chinese medicinal materials includes:

[0006] The lower screen frame is fixed with studs at all four corners.

[0007] An upper screen frame is detachably connected to the upper end of a lower screen frame. The upper part of a stud is inserted into the upper screen frame, and a nut that fits tightly against the upper screen frame is threaded onto the outside of the stud. Both the lower and upper screen frames have hollow handles at their front ends. A lower screen frame is fixed to the rear end of the hollow handle in front of the lower screen frame, and the rear part of the lower screen frame is inserted into the lower screen frame. A lower screen is fixed inside the lower screen frame. A top screen frame is fixed to the rear end of the hollow handle in front of the upper screen frame, and the rear part of the top screen frame is inserted into the upper screen frame. An upper screen is fixed inside the top screen frame. A gear and rack mechanism is installed inside the hollow handle. Semi-ring clips connected to the gear and rack mechanism are symmetrically provided on the left and right sides of the hollow handle, and the semi-ring clips are tightly fitted against the stud.

[0008] Preferably, a lower side plate is fixed around the lower end of the lower screen frame, and the stud is fixed to the upper end of the lower side plate.

[0009] Preferably, an upper side plate is fixed around the lower end of the upper screen frame, and guide sleeves are embedded and fixed at the four corners of the lower end of the upper side plate. The studs and guide sleeves are interlocked one-to-one, and the lower end of the nut is in close contact with the upper end of the upper side plate.

[0010] Preferably, the gear and rack mechanism includes a rotating shaft, a gear, a rack, and a slide bar. The rotating shaft is bearing-connected to the middle of the hollow handle. The gear is fixed to the outside of the rotating shaft. A pair of racks are symmetrically meshed and connected to the upper and lower sides of the gear. A pair of slide bars are fixed to the ends of the racks in a one-to-one correspondence. The ends of the slide bars extend out of the hollow handle and are fixed to the semi-ring clamp on the same side.

[0011] Preferably, the inner wall of the semi-ring clamp is provided with raised texture.

[0012] Preferably, a spring box is fixed to the front end of the hollow handle, a second rotating shaft is rotatably connected inside the spring box, a spring is installed on the outside of the second rotating shaft, the first and last ends of the spring are respectively connected to the outer wall of the second rotating shaft and the inner wall of the spring box, and the rear part of the second rotating shaft is fixed to the front part of the first rotating shaft.

[0013] Preferably, a knob is rotatably connected to the front end of the spring box, and the rear of the knob is fixed to the front of the rotating shaft.

[0014] The beneficial effects of this utility model are as follows: When the medicinal materials to be screened are placed in the upper screen, because the sieve aperture of the upper screen is larger than that of the lower screen, the medicinal materials are first screened by the upper screen and then by the lower screen. When it is necessary to replace the upper or lower screen, the hollow handle can be squeezed and pulled out. Before pulling out, the knob needs to be turned to use the gear and rack mechanism to drive the semi-ring clamp to move closer to the distance and separate from the stud. This releases the limit on the upper or lower screen. The cooperation between the semi-ring clamp and the two studs in front can also prevent the two nuts in front from moving upwards out of the stud due to vibration. This makes it convenient to replace the upper or lower screen while ensuring the connection stability between the lower screen frame and the upper screen frame. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0016] Figure 2 This is a schematic diagram showing the disassembly of the lower and upper screen frames of this utility model.

[0017] Figure 3 This is a top view cross-sectional diagram of the hollow handle of this utility model.

[0018] In the diagram: 1. Lower screen frame; 11. Lower side plate; 12. Stud; 13. Lower screen frame; 14. Lower screen; 2. Upper screen frame; 21. Upper side plate; 22. Guide sleeve; 23. Nut; 24. Hollow handle; 241. Shaft 1; 242. Gear; 243. Rack; 244. Slide rod; 245. Half-ring clamp; 246. Spring box; 247. Shaft 2; 248. Spring spring; 249. Knob; 25. Screen frame; 26. Upper screen. Detailed Implementation

[0019] like Figures 1-3 As shown, a filter screen assembly for Chinese medicinal materials includes:

[0020] Lower screen frame 1, with studs 12 fixed at each of the four corners of the lower screen frame 1;

[0021] An upper screen frame 2 is detachably connected to the upper end of a lower screen frame 1. A stud 12 is inserted into the upper screen frame 2, and a nut 23 is threaded onto the stud 12 and tightly fitted to the upper screen frame 2. Both the lower screen frame 1 and the upper screen frame 2 have hollow handles 24 at their front ends. A lower screen frame 13 is fixed to the rear end of the hollow handle 24 in front of the lower screen frame 1, with the rear of the lower screen frame 13 inserted into the lower screen frame 1. A lower screen 14 is fixed inside the lower screen frame 13. A top screen frame 25 is fixed to the rear end of the hollow handle 24 in front of the upper screen frame 2, with the rear of the top screen frame 25 inserted into the upper screen frame 2. An upper screen 26 is fixed inside the top screen frame 25. A gear and rack mechanism is installed inside the hollow handle 24. Semi-ring clips 245, connected to the gear and rack mechanism, are symmetrically arranged on the left and right sides of the hollow handle 24, and the semi-ring clips 245 are tightly fitted to the stud 12. When installing the upper screen frame 2 onto the lower screen frame 1, the stud 12 passes through the upper screen frame 2, and the nut 23 is threaded onto the outside of the stud 12. The nut 23 is then moved down to press against the upper screen frame 2, thus fixing the upper screen frame 2 and the lower screen frame 1. The lower screen frame 13 is then inserted into the lower screen frame 1, so that the lower screen 14 is located inside the lower screen frame 1. The lower screen frame 13 can then be limited by the semi-ring clamp 245 being tightly attached to the stud 12. The upper screen frame 25 is then inserted into the upper screen frame 2, so that the upper screen 26 is located inside the upper screen frame 2. The upper screen frame 25 can then be limited by the semi-ring clamp 245 being tightly attached to the stud 12. Thus, when the medicinal materials to be screened are placed in the upper screen 26, because the sieve hole diameter of the upper screen 26 is larger than that of the lower screen 14, the medicinal materials are first screened by the upper screen 26 and then by the lower screen 14.

[0022] The lower screen frame 1 is fixed with a lower side plate 11 around its lower end. The studs 12 are fixed to the upper end of the lower side plate 11. The upper screen frame 2 is fixed with an upper side plate 21 around its lower end. The four corners of the lower end of the upper side plate 21 are embedded and fixed with guide sleeves 22. The studs 12 and guide sleeves 22 are inserted one-to-one. The lower end of the nut 23 is in close contact with the upper end of the upper side plate 21. When the studs 12 pass through the upper screen frame 2, the studs 12 and guide sleeves 22 can be inserted one-to-one. When the nut 23 is threaded onto the outside of the studs 12 and the nut 23 is moved down to press the upper screen frame 2, the nut 23 will directly press down on the upper side plate 21.

[0023] The gear and rack mechanism includes a rotating shaft 241, a gear 242, a rack 243, and a slide bar 244. The rotating shaft 241 is bearing-connected to the middle of the hollow handle 24. The gear 242 is fixed to the outside of the rotating shaft 241. A pair of racks 243 are symmetrically meshed and connected to the upper and lower sides of the gear 242. A pair of slide bars 244 are fixed to the ends of the racks 243, one-to-one. The ends of the slide bars 244 extend out of the hollow handle 24 and are fixed to the semi-ring clip 245 on the same side. A spring box 246 is fixed to the front end of the hollow handle 24. A rotating shaft 247 is rotatably connected inside the spring box 246. A spring spring 248 is installed on the outside of the rotating shaft 247. The two ends of the spring spring 248 are respectively connected to the outer wall of the rotating shaft 247 and the inner wall of the spring box 246. The rear of shaft 247 is fixed to the front of shaft 1 241. A knob 249 is rotatably connected to the front of spring box 246. The rear of knob 249 is fixed to the front of shaft 247. When installing the upper screen 26 or the lower screen 14, the knob 249 is rotated, which drives shaft 247 to rotate. Shaft 247 drives spring 248 to contract. At the same time, shaft 247 drives shaft 1 241 to rotate. Shaft 1 241 drives gear 242 to rotate. Gear 242 drives two racks 243 to move synchronously in opposite directions through meshing. This causes racks 243 to drive slide bar 244 to close the gap. This can drive half-ring clamp 245 to close the gap. Then, the lower screen frame 13 is inserted into the lower screen frame 1 or the upper screen frame 25 is inserted into the upper screen frame 2. During this process, half-ring clamp 245 does not affect the installation of lower screen frame 13 or upper screen frame 25.

[0024] After the lower screen frame 13 or the upper screen frame 25 is inserted, the semi-ring clamp 245 aligns with the two front studs 12, and the knob 249 can be loosened. The spring 248 resets the mechanism, causing the second rotating shaft 247 to reverse. The second rotating shaft 247 then causes the first rotating shaft 241 to reverse, and the first rotating shaft 241 causes the gear 242 to rotate in the opposite direction. The gear 242 meshes with the two racks 243, causing them to move in the opposite direction synchronously. This causes the racks 243 to drive the slide bar 244 to open the gap, which in turn causes the semi-ring clamp 245 to open the gap. At the same time, the semi-ring clamp 245 engages with the studs 12 and abuts against them. The inner wall of the semi-ring clamp 245 has raised textures, and the semi-ring clamp 245 is located above and in contact with the two front nuts 23. This prevents the two front nuts 23 from moving upwards out of the studs 12 due to vibration, ensuring the connection stability between the lower screen frame 1 and the upper screen frame 2 even if the two rear nuts 23 become loose.

[0025] When it is necessary to replace the upper screen 26 or the lower screen 14, simply pinch the hollow handle 24 and turn the knob 249 to pull it out. This allows the gear and rack mechanism to drive the semi-ring clamp 245 to move closer and separate from the stud 12, thus releasing the limit on the upper screen frame 25 or the lower screen frame 13. After pulling out the hollow handle 24, the upper screen frame 25 or the lower screen frame 13 can be pulled out, allowing the upper screen 26 or the lower screen 14 to be moved out together. This makes it more convenient to replace the upper screen 26 or the lower screen 14.

Claims

1. A filter screen assembly for Chinese medicinal materials, characterized in that, include: The lower screen frame (1) is fixed with studs (12) at each of its four corners. The upper screen frame (2) is detachably connected to the upper end of the lower screen frame (1). The upper part of the stud (12) is inserted into the upper screen frame (2). The stud (12) is externally threaded with a nut (23) that is in close contact with the upper screen frame (2). The lower screen frame (1) and the upper screen frame (2) are both provided with hollow handles (24) at the front. The lower screen frame (1) is fixed with a lower mesh frame (13) at the rear end of the hollow handle (24) in front of the lower screen frame (1). The rear part of the lower mesh frame (13) is inserted into the lower screen frame (1). The lower screen (14) is fixed inside the frame (13). The upper screen frame (2) has a net frame (25) fixed at the rear end of the hollow handle (24) in front of the upper screen frame (2). The rear part of the net frame (25) is inserted into the upper screen frame (2). The upper screen (26) is fixed inside the net frame (25). The hollow handle (24) has a gear and rack mechanism installed inside. The hollow handle (24) has symmetrical semi-ring clips (245) connected to the gear and rack mechanism on the left and right sides. The semi-ring clips (245) are tightly attached to the stud (12).

2. The medicinal herb filter screen assembly according to claim 1, characterized in that: The lower screen frame (1) is fixed with a lower side plate (11) around its lower end, and the stud (12) is fixed to the upper end of the lower side plate (11).

3. The medicinal herb filter screen assembly according to claim 2, characterized in that: The upper screen frame (2) is fixed with an upper side plate (21) around its lower end. The upper side plate (21) has guide sleeves (22) embedded and fixed at its four corners. The studs (12) and guide sleeves (22) are inserted and interposed in a one-to-one correspondence. The lower end of the nut (23) is in close contact with the upper end of the upper side plate (21).

4. The Chinese medicinal herb filter screen assembly according to claim 1, characterized in that: The gear and rack mechanism includes a rotating shaft (241), a gear (242), a rack (243), and a slide bar (244). The rotating shaft (241) is connected to the middle of the hollow handle (24) by a bearing. The gear (242) is fixed to the outside of the rotating shaft (241). The rack (243) has a pair of symmetrical meshing connections on the upper and lower sides of the gear (242). The slide bar (244) has a pair of corresponding fixed ends of the rack (243). The ends of the slide bars (244) extend out of the hollow handle (24) and are fixed to the half-ring clamp (245) on the same side.

5. A filter screen assembly for Chinese medicinal materials according to claim 4, characterized in that: The inner wall of the semi-ring clamp (245) is provided with raised texture.

6. A filter screen assembly for Chinese medicinal materials according to claim 4, characterized in that: The hollow handle (24) has a spring box (246) fixed at its front end. The spring box (246) is rotatably connected to a second rotating shaft (247). A spring spring (248) is installed on the outside of the second rotating shaft (247). The first and last ends of the spring spring (248) are respectively connected to the outer wall of the second rotating shaft (247) and the inner wall of the spring box (246). The rear of the second rotating shaft (247) is fixed to the front of the first rotating shaft (241).

7. A filter screen assembly for Chinese medicinal materials according to claim 6, characterized in that: The front end of the spring box (246) is rotatably connected to a knob (249), and the rear of the knob (249) is fixed to the front of the rotating shaft (247).

Images