CN211563667U

CN211563667U - High-efficient chinese-medicinal material screening plant

Info

Publication number: CN211563667U
Application number: CN201922045678.2U
Authority: CN
Inventors: 刘静; 万明月
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-09-25
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a high-efficient chinese-medicinal material screening plant, including base and workstation, the base level sets up just a plurality of guiding holes have vertically been seted up around the base top surface, base top level is provided with the workstation, vertically be fixed with a plurality of guide pillars around the workstation bottom surface, the guide pillar with the guiding hole one-to-one just the guide pillar bottom with guiding hole sliding fit. Has the advantages that: the utility model discloses put into in the protecting frame back with traditional chinese medicine powder through can dismantle respectively with upper cover and lower cover and fix the top and the bottom of protecting the frame and place on the workstation and through two gag lever posts spacing with the locating hole cooperation of end plate, later produce the mode of excitation force drive workstation excitation from top to bottom through the excitation subassembly and can be to the traditional chinese medicine powder vibrations screening of protecting frame internal screen top surface, replaced artifical reciprocal screening mode of rocking the sieve, reduced workman's work load and promoted screening efficiency.

Description

High-efficient chinese-medicinal material screening plant

Technical Field

The utility model relates to a chinese-medicinal material processing equipment field, concretely relates to high-efficient chinese-medicinal material screening plant.

Background

The Chinese medicinal materials refer to crude medicinal materials applied under the guidance of Han nationality traditional medicine. The traditional Chinese medicinal materials are prepared into authentic medicinal materials, which are medicinal materials produced in a region with specific natural conditions and ecological environment, and the traditional Chinese medicinal materials are concentrated in production, so that the traditional Chinese medicinal materials have certain researches on cultivation technology, harvesting and processing. In the preparation process of the traditional Chinese medicinal materials, the traditional Chinese medicinal materials are required to be prepared into powder in many times. In the process of preparing the powder, a screening device is needed to screen the traditional Chinese medicine powder, the traditional Chinese medicine powder with the particle size meeting the requirement is screened out for further processing, and the traditional Chinese medicine powder which does not meet the requirement is ground again.

The applicant finds that at least the following technical problems exist in the prior art: at present, screening is carried out by adopting a mode of manually shaking a screen in a reciprocating manner after a blanking container is placed below the screen, so that the workload is large and the screening efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high-efficient chinese-medicinal material screening plant in order to solve above-mentioned problem, the mode of excitation can be to the traditional chinese medicine powder vibrations screening of screen cloth top surface in the mask to the mode of excitation about the excitation power drive workstation through the excitation subassembly, has replaced artifical reciprocal screening mode of rocking the sieve, sees the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a high-efficient chinese-medicinal material screening plant, including base and workstation, the base level sets up and a plurality of guiding holes have been seted up vertically around the base top surface, the base top level is provided with the workstation, a plurality of guide pillars are fixed vertically around the workstation bottom surface, the guide pillar with the guiding hole one-to-one and the guide pillar bottom with the guiding hole sliding fit, the guide pillar outside clearance fit has the spring, and the spring top and the bottom respectively with workstation and base fixed connection, base top surface middle part fixedly connected with is used for exciting the vibrating motor of workstation, workstation top surface both sides are all fixed with the gag lever post vertically, workstation middle part top is provided with screening subassembly;

the utility model discloses a screening subassembly, including screening subassembly, gag lever post, upper cover, lower cover, workstation top surface, upper cover and lower cover, screening subassembly's both sides part with gag lever post sliding fit, screening subassembly top outside can be dismantled and be fixed with the upper cover, screening subassembly bottom outside can be dismantled and be fixed with the lower cover, just the lower cover bottom surface with laminating in the middle part of the workstation top surface, the upper cover with a plurality of locking subassemblies of the equal fixedly connected with in the lower cover outside, just locking subassembly with screening subassembly sliding fit.

Preferably, the number of the guide holes and the guide pillars is four.

As preferred, the screening subassembly is including protecting frame and screen cloth, protect the frame and be the equal open-ended frame structure in top surface and bottom surface, protect the frame top outside with the inboard sliding fit of upper cover, protect the frame bottom outside with the inboard sliding fit of lower cover, the middle part level of protecting the frame is provided with the screen cloth, just the four sides of screen cloth respectively with protect the inboard four walls fixed connection of frame, protect the equal level in frame middle part both sides and be fixed with the end plate, the equal vertical locating hole of having seted up of end plate, just the locating hole with correspond gag lever post sliding fit, protect frame top and bottom both sides and all have transversely seted up a plurality of locking holes along, the locking hole with locking subassembly one-to-one and sliding fit.

Preferably, the screen cloth is stainless steel, and the locking hole is the blind hole.

Preferably, the upper cover is of a box body structure with an opening in the bottom surface, a handle is fixedly connected to the top surface of the upper cover, the lower cover is of a box body structure with an opening in the top surface, the two sides of the upper cover and the two sides of the lower cover are respectively fixed with one locking assembly, the locking assemblies on the two sides of the upper cover are in mirror symmetry, and the locking assemblies on the two sides of the lower cover are in mirror symmetry.

Preferably, the locking assembly comprises four sealing covers and four protective sleeves, two groups of the sealing covers are fixed on two sides of the upper cover and two sides of the lower cover respectively, the outer end faces of the sealing covers are horizontally fixed with the protective sleeves, each protective sleeve is close to the end portion of each sealing cover, a mounting groove is transversely formed in each end portion of each sealing cover, a pressure spring is arranged in each mounting groove, each pressure spring is far away from one end of each sealing cover and fixedly connected with the corresponding mounting groove, a lantern ring is fixedly connected to the other end of each pressure spring, a pull rod is axially fixed to the mounting groove in the inner side edge of each lantern ring, the pull rod is in clearance fit with the corresponding sealing cover and the corresponding protective sleeve, the pull rod stretches out a handle fixedly connected with one end of each protective sleeve, and the pull rod stretches out one end of each sealing cover and corresponds.

Preferably, the lantern ring is in interference fit with the pull rod, and the surface of the handle is provided with anti-skid grains.

By adopting the high-efficiency Chinese medicinal material screening device, in an initial state, the outer side of the top of the protective frame is in sliding fit with the inner side of the upper cover, the outer side of the bottom of the protective frame is in sliding fit with the inner side of the lower cover, at the moment, the upper cover and the lower cover can only move along the vertical direction of the protective frame, and at the moment, the pull rods of the locking components on the outer sides of the upper cover and the lower cover are in sliding fit with the corresponding locking holes, at the moment, the upper cover and the lower cover are locked along the vertical direction of the protective frame, so that the upper cover and the lower cover are detachably fixed at the top and the bottom of the protective frame, when in use, because the bottom surface of the lower cover is attached to the top surface of the workbench, the positioning holes of the end plates on two sides are in sliding fit with the corresponding limiting rods respectively, and preferably, the height of the limiting rods exceeds the top surface of the, then at this moment the screening subassembly can't rock the workstation top surface, take off the upper cover will treat the traditional chinese medicine powder of screening and add, operation process is: simultaneously, the handles on the two sides of the upper cover are held to be pulled outwards to drive the pull rods to be separated from the corresponding locking holes, at the moment, the pull rods and the locking holes are matched to unlock the upper cover, the pull rods on the two sides are kept in an outwards pulled state, the upper cover is lifted upwards or held by other people to drive the upper cover to ascend, and then the upper cover can be separated from the protective frame, so that the upper cover can be rapidly detached from the top of the protective frame, the top surface opening of the protective frame is opened, Chinese medicine powder is poured into the protective frame and placed on the top surface of the screen, and then the upper cover is covered again to seal the top surface opening of the protective frame, and the operation process is as follows: the pull rods on two sides of the upper cover are pulled to be taken in the mounting groove in a mode of compressing the pressure spring to avoid interference with normal matching of the upper cover and the top of the protective frame, then the two pull rods are transversely arranged and align the opening in the bottom surface of the upper cover with the top of the protective frame to descend, when the upper cover descends until the pull rods are lower than the top surface of the protective frame, the handle is loosened to enable the compression stroke of the pressure spring releasing to drive the pull rods to return and abut against the outer side of the protective frame, when the upper cover descends until the pull rods are right opposite to the locking holes, the pressure spring continues to drive the pull rods to return through the lantern ring and is clamped into the locking holes again, so that the installation of the upper cover on the top of the protective frame can be rapidly completed, and subsequently, the vibration motor is electrically connected with an external power supply cable and controls the vibration motor to work, the type of the vibration motor is preferably an eccentric block type vibration motor, the vibration motor obtains an excitation force by utilizing a centrifugal force generated by high-speed rotation of a motor shaft and an eccentric block, so that the vibration motor drives the workbench to vibrate under the reciprocating expansion action of the spring on the outer side of the guide post through the excitation force, the traditional Chinese medicine powder on the top surface of the screen in the protective frame is screened immediately, the traditional Chinese medicine powder meeting the requirement of particle size falls into the lower cover to be collected, the traditional Chinese medicine powder not meeting the requirement of particle size is remained on the top surface of the screen, the vibration motor is controlled to be powered off and stopped after screening is finished, then the screening component is moved upwards to be taken down in a mode that the end plate rises along the limiting rod, the lower cover is kept at the bottom of the screening component and taken down, and the taking down operation process is the same as the operation process of taking down the upper cover, then through taking off the mode of lower cover can with the traditional chinese medicine powder that accords with the particle size requirement that the lower cover was collected takes out, the lower cover takes off after getting off the upper cover again, then because protect the top surface opening of frame, can will through the mode of empting the traditional chinese medicine powder that the screen cloth top surface does not accord with the particle size requirement is poured out and is ground once more, and the material process of getting is simple easily operated, is favorable to the traditional chinese medicine powder after the screening to take out fast.

Has the advantages that: 1. the utility model discloses put into protecting the frame after traditional chinese medicine powder and can dismantle respectively through fixing upper cover and lower cover at the top and the bottom of protecting the frame and place on the workstation and through two gag lever posts and the locating hole cooperation spacing of end plate, later produce the mode that the exciting force drove the workstation to excite the vibration from top to bottom through the excitation subassembly and can be to protecting the traditional chinese medicine powder vibrations screening of frame screen cloth top surface, replaced the artifical screening mode that rocks the sieve reciprocally, reduced workman's work load and promoted screening efficiency;

2. because upper cover and lower cover all can dismantle with protecting the frame and be connected, then can take out the traditional chinese medicine powder that accords with the particle size requirement that the lower cover was collected through the mode of taking off the lower cover when screening was accomplished, can pour the traditional chinese medicine powder that does not accord with the particle size requirement through the mode of taking off the upper cover hypsokinesis and falling the frame of protecting simultaneously and grind once more, get the simple easy operation of material process, be favorable to the traditional chinese medicine powder after the screening to take out fast.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front external view of the present invention;

fig. 2 is a front sectional view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a front enlarged partial sectional view of the present invention.

The reference numerals are explained below:

1. a work table; 101. a limiting rod; 102. a guide post; 103. a spring; 2. a screen assembly; 201. protecting the frame; 202. an end plate; 203. a locking hole; 204. screening a screen; 205. positioning holes; 3. a base; 301. a vibration motor; 302. a guide hole; 4. an upper cover; 401. a handle; 5. a locking assembly; 501. a pull rod; 502. a handle; 503. a sheath; 504. sealing the cover; 505. mounting grooves; 506. a pressure spring; 507. a collar; 6. and (7) a lower cover.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a high-efficiency Chinese medicinal material screening device, which comprises a base 3 and a workbench 1, wherein the base 3 is horizontally arranged, a plurality of guide holes 302 are vertically arranged around the top surface of the base 3, the workbench 1 is horizontally arranged above the base 3, a plurality of guide posts 102 are vertically fixed around the bottom surface of the workbench 1, the guide posts 102 are in one-to-one correspondence with the guide holes 302, the bottom ends of the guide posts 102 are in sliding fit with the guide holes 302, springs 103 are in clearance fit outside the guide posts 102, the top ends and the bottom ends of the springs 103 are respectively fixedly connected with the workbench 1 and the base 3, a vibration motor 301 for exciting the workbench 1 is fixedly connected in the middle of the top surface of the base 3, limiting rods 101 are vertically fixed on both sides of the top surface of the workbench 1, a screening component 2 is arranged above the middle of the workbench 1, both side parts of the screening component 2 are in sliding fit, the outside can be dismantled in 2 bottoms of screening subassembly and be fixed with lower cover 6, and the laminating in the middle part of 6 bottom surfaces of lower cover and 1 top surfaces of workstation, a plurality of locking subassemblies of the equal fixedly connected with in upper cover 4 and the 6 outsides of lower cover 5, and locking subassembly 5 and 2 sliding fit of screening subassembly.

As the preferable scheme of the scheme, the number of the guide holes 302 and the guide pillars 102 is four, so that the workbench 1 can vibrate stably in the vibration exciting process, the screening component 2 comprises a protective frame 201 and a screen 204, the protective frame 201 is a frame-shaped structure with openings on the top surface and the bottom surface, the outer side of the top of the protective frame 201 is in sliding fit with the inner side of the upper cover 4, the outer side of the bottom of the protective frame 201 is in sliding fit with the inner side of the lower cover 6, the screen 204 is horizontally arranged in the middle of the protective frame 201, four sides of the screen 204 are respectively fixedly connected with four walls of the inner side of the protective frame 201, end plates 202 are horizontally fixed on two sides of the middle part of the protective frame 201, positioning holes 205 are vertically arranged on the end plates 202, the positioning holes 205 are matched with the corresponding limiting rods 101 in a sliding way, a plurality of locking holes 203 are transversely arranged on both sides of the top and the bottom of the protective frame 201, the locking holes 203 are matched with the locking components 5 in a one-to-one correspondence and in a sliding way, so set up, be convenient for sieve the traditional chinese medicine powder through the mode of screening subassembly 2 along with workstation 1 vibrations.

The screen cloth 204 is stainless steel, so that the screen cloth 204 self has good stable working property, locking hole 203 is the blind hole, so set up, it can be by quick convenient processing to be convenient for locking hole 203, upper cover 4 is bottom surface open-ended box body structure, and upper cover 4 top surface fixedly connected with handle 401, lower cover 6 is top surface open-ended box body structure, the both sides of upper cover 4 and lower cover 6 are fixed with a locking Assembly 5 respectively, the locking Assembly 5 of upper cover 4 both sides is mirror symmetry, and the locking Assembly 5 of lower cover 6 both sides is mirror symmetry, so set up, be convenient for come quick and correspond the locking cooperation through locking Assembly 5 and fix upper cover 4 and lower cover 6 respectively in protecting frame 201 top surface and bottom surface.

The locking assembly 5 comprises four sealing covers 504 and four sheaths 503, the sealing covers 504 are respectively fixed on two sides of the upper cover 4 and two sides of the lower cover 6 in groups of two sealing covers 504, the outer end face of each sealing cover 504 is horizontally fixed with a sheath 503, the end part of each sheath 503 close to the sealing cover 504 is transversely provided with an installation groove 505, a pressure spring 506 is arranged in the installation groove 505, one end of the pressure spring 506 far away from the sealing cover 504 is fixedly connected with the installation groove 505, the other end of the pressure spring 506 is fixedly connected with a lantern ring 507, a pull rod 501 is fixed on the inner side of the lantern ring 507 along the axial direction of the installation groove 505, the pull rod 501 is in clearance fit with the pressure spring 506, the sealing cover 504 and the sheaths 503, one end of the pull rod 501 extending out of the sheath 503 is fixedly connected with a handle 502, one end of the pull rod 501 extending out of the sealing cover 504 is in sliding fit with a corresponding locking hole 203, so that the upper cover 4 and the lower cover, or the locking of the upper cover 4 and the lower cover 6 on the protective frame 201 is rapidly unlocked by the mode that the pull rod 501 is separated from the locking hole 203, the lantern ring 507 is in interference fit with the pull rod 501, so that the lantern ring 507 and the pull rod 501 are moved commonly to compress the pressure spring 506 or enable the pressure spring 506 to release the compression stroke of the pressure spring, and the surface of the handle 502 is provided with anti-skid grains, so that the handle 502 is prevented from being separated from the hand when the handle 502 is held for force application.

By adopting the structure, in the initial state, the outer side of the top of the protective frame 201 is in sliding fit with the inner side of the upper cover 4, and the outer side of the bottom of the protective frame 201 is in sliding fit with the inner side of the lower cover 6, at the same time, the upper cover 4 and the lower cover 6 can only move along the vertical direction of the protective frame 201, and because the pull rods 501 of the locking components 5 on the outer sides of the upper cover 4 and the lower cover 6 are in sliding fit with the corresponding locking holes 203, at the same time, the upper cover 4 and the lower cover 6 are locked along the vertical direction of the protective frame 201, so that the upper cover 4 and the lower cover 6 are detachably fixed at the top and the bottom of the protective frame 201, when in use, because the bottom surface of the lower cover 6 is attached to the top surface of the workbench 1, and the positioning holes 205 of the end plates 202 on two sides are respectively in sliding fit with the corresponding limiting rods 101, preferably, the height of the limiting rods 101 exceeds the top surface of the upper cover 4, the operation process is as follows: handle 502 of handheld upper cover 4 both sides simultaneously draws outward and drives pull rod 501 and deviate from corresponding locking hole 203, pull rod 501 and the locking hole 203 cooperation are relieved to the locking of upper cover 4 this moment, then keep the outer pulling state of both sides pull rod 501 and go up and carry upper cover 4 or hold handle 401 by other people and drive the upper cover 4 and rise the back and can separate with protecting frame 201, with this can accomplish fast the dismantlement of upper cover 4 at protecting frame 201 top, the top surface opening of protecting frame 201 is opened, pour traditional chinese medicine powder into and place screen cloth 204 top surface in protecting frame 201, later cover upper cover 4 again and seal and protect frame 201 top surface opening, operation process does: meanwhile, pull rods 501 on two sides of the upper cover 4 are pulled to be accommodated in the installation groove 505 in a mode of compressing a compression spring 506 to avoid interference on normal matching of the upper cover 4 and the top of the protective frame 201, then the two pull rods 501 are transversely arranged, an opening in the bottom surface of the upper cover 4 is aligned with the top of the protective frame 201 and then descends, when the upper cover 4 descends until the pull rods 501 are lower than the top surface of the protective frame 201, a handle 502 is loosened to enable the compression spring 506 to release a compression stroke of the compression spring 506 to drive the pull rods 501 to return and abut against the outer side of the protective frame 201, when the upper cover 4 descends until the pull rods 501 are opposite to the locking holes 203, the compression spring 506 continues to drive the pull rods 501 to return through a lantern ring 507 and is clamped into the locking holes 203 again, so that the installation of the upper cover 4 on the top of the protective frame 201 can be rapidly completed, the vibration motor 301 is electrically connected with an external power supply cable and controls the vibration motor 301 to work, the type of the vibration motor, thereby, the workbench 1 is driven by the exciting force to vibrate under the reciprocating and stretching action of the spring 103 at the outer side of the guide post 102, the traditional Chinese medicine powder on the top surface of the screen mesh 204 in the protective frame 201 is screened immediately, the traditional Chinese medicine powder meeting the particle size requirement falls into the lower cover 6 to be collected, and the traditional Chinese medicine powder not meeting the particle size requirement stays on the top surface of the screen mesh 204, the vibrating motor 301 is controlled to be powered off and stop rotating after the screening is finished, then the screening component 2 is moved upwards to be taken down in a mode of ascending along the limiting rod 101 through the end plate 202, the lower cover 6 is kept at the bottom of the screening component 2 and the lower cover 6 is taken down, the operation process of taking down is the same as the operation process of taking down the upper cover 4, the traditional Chinese medicine powder meeting the particle size requirement collected by the lower cover 6 can be taken out in a mode of taking down the lower cover 6, the upper cover 4 is taken down after the lower cover 6 is taken down, and the traditional Chinese medicine powder not meeting the particle size requirement on the, the material taking process is simple and easy to operate, and the screened traditional Chinese medicine powder can be taken out quickly.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a high-efficient chinese-medicinal material screening plant, includes base (3) and workstation (1), its characterized in that: the base (3) is horizontally arranged, a plurality of guide holes (302) are vertically arranged around the top surface of the base (3), the workbench (1) is horizontally arranged above the base (3), a plurality of guide posts (102) are vertically fixed around the bottom surface of the workbench (1), the guide posts (102) correspond to the guide holes (302) one by one, the bottom ends of the guide posts (102) are in sliding fit with the guide holes (302), springs (103) are in clearance fit with the outer sides of the guide posts (102), and the top end and the bottom end of the spring (103) are respectively and fixedly connected with the workbench (1) and the base (3), the middle part of the top surface of the base (3) is fixedly connected with a vibration motor (301) used for exciting the worktable (1), limiting rods (101) are vertically fixed on two sides of the top surface of the workbench (1), and a screening component (2) is arranged above the middle of the workbench (1);

the utility model discloses a screening subassembly, including workstation (1), upper cover (4), screening subassembly (2) top outside can be dismantled and be fixed with upper cover (4), screening subassembly (2) bottom outside can be dismantled and be fixed with lower cover (6), just lower cover (6) bottom surface with laminating in the middle part of workstation (1) top surface, upper cover (4) with a plurality of locking subassemblies (5) of equal fixedly connected with in lower cover (6) outside, just locking subassembly (5) with screening subassembly (2) sliding fit.

2. The efficient Chinese herbal medicine screening device according to claim 1, characterized in that: the number of the guide holes (302) and the guide columns (102) is four.

3. The efficient Chinese herbal medicine screening device according to claim 1, characterized in that: the screening assembly (2) comprises a protective frame (201) and a screen (204), wherein the protective frame (201) is of a frame-shaped structure with openings on the top surface and the bottom surface, the outer side of the top of the protective frame (201) is in sliding fit with the inner side of the upper cover (4), the outer side of the bottom of the protective frame (201) is in sliding fit with the inner side of the lower cover (6), the middle part of the protective frame (201) is horizontally provided with the screen (204), and the four sides of the screen (204) are respectively fixedly connected with the four walls of the inner side of the protective frame (201), end plates (202) are horizontally fixed on two sides of the middle part of the protective frame (201), positioning holes (205) are vertically formed in the end plates (202), and the positioning holes (205) are in sliding fit with the corresponding limiting rods (101), a plurality of locking holes (203) are transversely arranged on both sides of the top and the bottom of the protective frame (201), the locking holes (203) correspond to the locking assemblies (5) one by one and are in sliding fit with the locking assemblies.

4. A high-efficiency Chinese herbal medicine screening device as claimed in claim 3, characterized in that: the screen (204) is made of stainless steel, and the locking holes (203) are blind holes.

5. A high-efficiency Chinese herbal medicine screening device as claimed in claim 3, characterized in that: the upper cover (4) is a box body structure with an opening in the bottom surface, a handle (401) is fixedly connected to the top surface of the upper cover (4), the lower cover (6) is a box body structure with an opening in the top surface, the upper cover (4) and the two sides of the lower cover (6) are respectively fixed with one locking assembly (5), the locking assemblies (5) on the two sides of the upper cover (4) are in mirror symmetry, and the locking assemblies (5) on the two sides of the lower cover (6) are in mirror symmetry.

6. The efficient Chinese herbal medicine screening device as claimed in claim 5, wherein the efficient Chinese herbal medicine screening device comprises: the locking assembly (5) comprises four sealing covers (504) and four protective sleeves (503), every two groups of the sealing covers (504) are fixed on two sides of the upper cover (4) and two sides of the lower cover (6), the protective sleeves (503) are horizontally fixed on the outer end faces of the sealing covers (504), an installation groove (505) is transversely formed in the end portion, close to the sealing cover (504), of each protective sleeve (503), a pressure spring (506) is arranged in the installation groove (505), one end, far away from the sealing cover (504), of each pressure spring (506) is fixedly connected with the installation groove (505), a sleeve ring (507) is fixedly connected to the other end of each pressure spring (506), a pull rod (501) is axially fixed on the inner side of the sleeve ring (507) along the installation groove (505), and the pull rods (501) are in clearance fit with the pressure springs (506), the sealing covers (504) and the protective sleeves (503), one end, extending out of the sheath (503), of the pull rod (501) is fixedly connected with a handle (502), and one end, extending out of the sealing cover (504), of the pull rod (501) is in sliding fit with the corresponding locking hole (203).

7. The efficient Chinese herbal medicine screening device as claimed in claim 6, wherein the efficient Chinese herbal medicine screening device comprises: the lantern ring (507) is in interference fit with the pull rod (501), and anti-skid grains are formed in the surface of the handle (502).