Standard sieve for veterinary drug inspection

Abstract

The utility model discloses a standard sieve for veterinary drug examination, which belongs to the technical field of standard sieves and comprises a sieve shaker positioned at the bottom, two vertical rods arranged above the sieve shaker, a plurality of sieve drums stacked between the two vertical rods, arc-shaped guide parts arranged at the edges of the bottoms of the sieve drums, and arc-shaped steps arranged at the edges of the tops of the sieve drums. A mounting groove is formed in the periphery of the arc-shaped step, and a sealing ring is arranged in the mounting groove; during installation, the arc-shaped guide parts abut against the arc-shaped steps, the sealing rings are located on the outer side walls of the screen drums, extrusion mechanisms are arranged at the tops of the screen drums, and after the multiple screen drums are stacked, the extrusion mechanisms apply downward pressure to the topmost screen drum. By arranging the sealing ring, full sealing in the operation process can be achieved, dust drifting in the use process is avoided, and the laboratory environment during veterinary drug particle size inspection can be improved. And a plurality of screen drums are clamped and matched, so that the operation is convenient and quick, the working efficiency of veterinary drug granularity inspection is improved, and the assembly and disassembly are convenient and quick.

Description

Technical Field

[0001] The utility model relates to the technical field of standard sieves, in particular to a standard sieve for veterinary drug inspection. Background Art

[0002] Pharmacopoeia sieve (also known as pharmacopoeia standard sieve) refers to a sieve with unified specifications for pharmaceutical production in accordance with the provisions of the Chinese Pharmacopoeia. Pharmacopoeia sieves are used by traditional Chinese medicine, western medicine, preparation manufacturers or pharmacopoeia units to classify, screen, filter and remove impurities from liquid, powder and granular drugs. Zhuohang pharmacopoeia sieves can be hand-screened, and can also be used in conjunction with standard vibrating sieve machines to improve efficiency. In actual production, pharmacopoeia sieves are also often used with industrial specification sieves. The specifications and standards of such sieves should be the same as those of pharmaceutical sieves, and will not affect the quality of the drugs.

[0003] Since the standard sieve will generate high-frequency vibration when in use, powdered medicines are prone to generate dust when the air humidity is low. The existing pharmacopoeia sieve has low sealing performance, especially the sealing performance cannot be well guaranteed during vibration. Utility Model Content

[0004] In view of the above problems, the present invention aims to solve the above problems. One object of the present invention is to provide a standard sieve for veterinary drug inspection that solves the above problems.

[0005] The solution adopted in this embodiment is: a standard sieve for veterinary drug inspection, including a vibrating screen machine located at the bottom, two vertical rods are arranged above the vibrating screen machine, and a plurality of screen cylinders are stacked between the two vertical rods, an arc-shaped guide portion is arranged at the bottom edge of the screen cylinder, an arc-shaped step is arranged at the top edge of the screen cylinder, an installation groove is arranged at the periphery of the arc-shaped step, and a sealing ring is arranged in the installation groove; when installing, the arc-shaped guide portion is abutted against the arc-shaped step, and the sealing ring is located at the outer side wall of the screen cylinder, and an extrusion mechanism is arranged on the top of the screen cylinder. After multiple screen cylinders are stacked, the extrusion mechanism applies downward pressure to the topmost screen cylinder.

[0006] Specifically, the extrusion mechanism includes a cover plate, a flexible sealing ring is arranged on the lower side of the cover plate, the outer diameter of the flexible sealing ring matches the inner diameter of the screen cylinder, and the flexible sealing ring is inserted into the topmost screen cylinder during installation; connecting ears are arranged on both sides of the cover plate, the connecting ears are slidably sleeved on the vertical rod, a locking sleeve is arranged on the vertical rod, a locking knob is arranged on the locking sleeve, and the lower side of the locking sleeve is abutted against the connecting ears.

[0007] For the convenience of observation, a transparent observation window is provided in the middle of the cover plate.

[0008] To facilitate installation, the arc-shaped guide portion bends and transitions from the outer wall of the screen cylinder to the inner wall, the arc-shaped step is transitionally connected to the installation groove, the inner edge of the arc-shaped guide portion coincides with the inner edge of the arc-shaped step, and the installation groove is located outside the arc-shaped guide portion.

[0009] Preferably, the vibrating screen machine includes a body base and a vibrating plate, the output end of the body base is connected to the vibrating plate, and the lower ends of the vertical rods are fixed to the two side edges of the vibrating plate.

[0010] The preferred technical solution is that a receiving tray is arranged on the vibration tray, a mounting groove and a sealing ring cooperating with the arc-shaped guide portion are arranged on the top edge of the receiving tray, and the receiving tray is adaptively connected to the bottommost screen drum.

[0011] Compared with the prior art, the utility model veterinary drug inspection standard sieve has the following technical effects:

[0012] 1. By configuring the sealing ring, the operation process can be fully closed to avoid dust dispersion during use, which is beneficial to improving the laboratory environment during veterinary drug particle size inspection. The use of multiple sieve cylinders for card connection is convenient and fast to operate, which is beneficial to improving the efficiency of veterinary drug particle size inspection, and the assembly and disassembly are convenient and fast.

[0013] Other characteristic features and advantages of the present invention will become apparent from the following description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated into the specification and constitute a part of the specification, illustrate embodiments of the utility model and are used together with the description to explain the principles of the utility model. In these drawings, similar reference numerals are used to represent similar elements. The drawings described below are some embodiments of the utility model, rather than all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the standard sieve for veterinary drug inspection provided in a specific embodiment of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the cooperation between the cover plate and the screen drum provided in the specific implementation mode of the utility model;

[0017] In the figure:

[0018] 1. Vibrating screen machine; 11. Base; 12. Vibrating plate; 13. Vertical rod; 2. Receiving plate; 3. Screen cylinder; 31. Mounting groove; 32. Arc-shaped step; 33. Arc-shaped guide; 41. Transparent observation window; 42. Flexible sealing ring; 5. Locking sleeve; 51. Locking knob. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other arbitrarily without conflict.

[0020] The standard sieve for veterinary drug inspection is described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] like Figure 1-2 As shown, the utility model provides a standard sieve for veterinary drug inspection, including a vibrating screen machine 1 located at the bottom, two vertical rods 13 are arranged above the vibrating screen machine 1, and a plurality of screen cylinders 3 are stacked between the two vertical rods 13. The bottom edge of the screen cylinder 3 is provided with an arc-shaped guide portion 33, and the top edge of the screen cylinder 3 is provided with an arc-shaped step 32. The periphery of the arc-shaped step 32 is provided with an installation groove 31, and a sealing ring is provided in the installation groove 31; when installing, the arc-shaped guide portion 33 is against the arc-shaped step 32, and the sealing ring is located at the outer side wall of the screen cylinder 3. The top of the screen cylinder 3 is provided with an extrusion mechanism, and after multiple screen cylinders 3 are stacked, the extrusion mechanism applies downward pressure to the topmost screen cylinder 3. The two vertical rods 13 are located on both sides to stabilize the screen cylinder 3. The appropriate screen cylinder 3 is selected and stacked together according to the needs. Due to the effect of the arc-shaped guide portion 33 and other structures, the installation of multiple screen cylinders 3 is convenient when stacked. At the same time, due to the cooperation of the sealing ring, the sealing can be well guaranteed to avoid dust problems. The squeezing mechanism is arranged to ensure the stability and sealing of the screen drum 3 during the vibration process.

[0022] Specifically, the extrusion mechanism includes a cover plate, a flexible sealing ring 42 is arranged on the lower side of the cover plate, the outer diameter of the flexible sealing ring 42 matches the inner diameter of the sieve cylinder 3, and the flexible sealing ring 42 is inserted into the top sieve cylinder 3 during installation; connecting ears are arranged on both sides of the cover plate, and the connecting ears are slidably sleeved on the vertical rod 13, and a locking sleeve 5 is arranged on the vertical rod 13, and a locking knob 51 is arranged on the locking sleeve 5, and the lower side of the locking sleeve 5 is against the connecting ears. For pharmaceutical powders with different requirements, the height of the sieve cylinder 3 may be different. In this embodiment, the cover plate is slidably arranged on the vertical rod 13, and the upper and lower heights can be freely adjusted. When the cover plate covers the top sieve cylinder 3, it is fixed by locking the locking knob 51 on the locking sleeve 5, so that the cover plate is fixed. In order to facilitate observation, a transparent observation window 41 is arranged in the middle of the cover plate. The filtering situation can be directly observed from the top.

[0023] In order to facilitate installation, the arc-shaped guide part 33 is bent and transitioned from the outer wall to the inner wall of the screen cylinder 3, the arc-shaped step 32 is transitionally connected with the installation groove 31, the inner edge of the arc-shaped guide part 33 coincides with the inner edge of the arc-shaped step 32, and the installation groove 31 is located outside the arc-shaped guide part 33. When the screen cylinders 3 are stacked one by one, they can be easily aligned due to the action of the arc-shaped guide part 33, and the arc-shaped step 32 at the lower end can make the two screen cylinders 3 fit closely, with basically no gap, but gaps may appear during vibration. This embodiment adopts a sealing ring plus a cover plate extrusion method to make the two screen cylinders 3 sealed.

[0024] Preferably, the vibrating screen machine 1 includes a body base 11 and a vibrating plate 12, the output end of the body base 11 is connected to the vibrating plate 12, and the lower end of the vertical rod 13 is fixed to the two side edges of the vibrating plate 12. The preferred technical solution is that a receiving plate 2 is provided on the vibrating plate 12, the top edge of the receiving plate 2 is provided with a mounting groove 31 and a sealing ring that cooperate with the arc-shaped guide portion 33, and the receiving plate 2 is adaptively connected to the sieve cylinder 3 at the bottom. The filtered powder falls into the receiving plate 2. The vibrating screen machine 1 is a prior art, which can realize high-frequency vibration and can realize functions such as timing control.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "include..." do not exclude the existence of other identical elements in the article or device including the elements.

[0026] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. The utility model is described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, and all should be included in the scope of the claims of the utility model.

Claims

1. A standard sieve for veterinary drug inspection, characterized in that: It includes a vibrating screen machine at the bottom, two vertical rods are arranged above the vibrating screen machine, a plurality of screen cylinders are stacked between the two vertical rods, an arc-shaped guide portion is arranged at the bottom edge of the screen cylinder, an arc-shaped step is arranged at the top edge of the screen cylinder, a mounting groove is arranged at the periphery of the arc-shaped step, and a sealing ring is arranged in the mounting groove; During installation, the arc-shaped guide portion abuts against the arc-shaped step, the sealing ring is located at the outer side wall of the screen cylinder, and an extrusion mechanism is provided on the top of the screen cylinder. After multiple screen cylinders are stacked, the extrusion mechanism applies downward pressure to the topmost screen cylinder.

2. The standard sieve for veterinary drug inspection according to claim 1, characterized in that: The extrusion mechanism comprises a cover plate, a flexible sealing ring is arranged on the lower side of the cover plate, the outer diameter of the flexible sealing ring matches the inner diameter of the screen cylinder, and the flexible sealing ring is inserted into the topmost screen cylinder during installation; The cover plate is provided with connecting ears on both sides, the connecting ears are slidably sleeved on the vertical rod, a locking sleeve is provided on the vertical rod, a locking knob is provided on the locking sleeve, and the lower side of the locking sleeve abuts against the connecting ears.

3. The standard sieve for veterinary drug inspection according to claim 2, characterized in that: A transparent observation window is arranged in the middle of the cover plate.

4. The standard sieve for veterinary drug inspection according to claim 1, characterized in that: The arc-shaped guide portion bends and transitions from the outer wall of the screen drum to the inner wall, the arc-shaped step is transitionally connected with the installation groove, the inner edge of the arc-shaped guide portion coincides with the inner edge of the arc-shaped step, and the installation groove is located outside the arc-shaped guide portion.

5. The standard sieve for veterinary drug inspection according to claim 1, characterized in that: The vibrating screen machine comprises a body base and a vibrating plate, the output end of the body base is connected to the vibrating plate, and the lower ends of the vertical rods are fixed to the two side edges of the vibrating plate.

6. The standard sieve for veterinary drug inspection according to claim 5, characterized in that: A receiving plate is arranged on the vibration plate, a mounting groove and a sealing ring matched with the arc-shaped guide portion are arranged on the top edge of the receiving plate, and the receiving plate is adaptively connected with the screen cylinder at the bottom.

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