CN115872143A

CN115872143A - A examine goods equipment for electronic commerce goods

Info

Publication number: CN115872143A
Application number: CN202211501686.3A
Authority: CN
Inventors: 钱丽香
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-03-31

Abstract

The invention discloses goods inspection equipment for electronic commerce goods, which structurally comprises a display screen, a transmission belt, a support frame, a recovery basket and an inspection mechanism, wherein the display screen is fixedly arranged on the rear side of the right end of the support frame, the transmission belt is arranged at the upper end of the inner side of the support frame, the recovery basket is arranged on the front end face of the support frame, the goods are centrally transmitted to the position under a security inspection instrument by rollers at the front end and the rear end, the goods are blocked by a buffer collision plate, a hinged sliding block can elastically slide on a spring rod through the linkage of a linkage rod, the buffer collision plate is prevented from causing larger collision force to the goods in the transmission process, the goods are stopped at the lower end of the security inspection instrument for comprehensive inspection, after the inspection work is finished, an electromagnetic block is powered off when an inspector is powered off, the inspector is driven to retract into a closed ring, a cleaning plate is used for cleaning dust at the lens end of the inspector when an opening and closing piece is closed, and the definition of the imaging of the inspector is improved.

Description

A examine goods equipment for electronic commerce goods

Technical Field

The invention relates to the field of electronic commerce, in particular to goods checking equipment for electronic commerce goods.

Background

Electronic commerce generally refers to the wide commercial and trade activities in various places around the world, and in the open network environment of the internet, the online shopping of consumers, the online transaction and the online electronic payment among merchants and various business activities are realized, goods in the electronic commerce need to be inspected by using goods inspection equipment before being transported, and the safety of goods in the transportation process is improved.

Disclosure of Invention

The technical scheme adopted by the invention for realizing the technical purpose is as follows: this a examine goods equipment for electronic commerce goods, its structure includes display screen, transmission band, support frame, recovery basket, inspection mechanism, display screen fixed mounting is in support frame right-hand member rear side to the transmission band is installed in the inboard upper end of support frame, retrieve the basket and establish terminal surface before the support frame to retrieve the basket upper end and be connected with inspection mechanism, inspection mechanism lower extreme fixed mounting is in the support frame upper end, and inspection mechanism is located the transmission band top, inspection mechanism includes connecting frame, return mechanism, barrier mechanism, electric push rod, safety inspection appearance, connecting frame lower extreme fixed mounting is in the support frame upper end to the connecting frame is located the transmission band top, the inboard right-hand member of connecting frame is equipped with return mechanism, barrier mechanism installs the inside left end at the connecting frame, electric push rod establishes at the inboard lower extreme of connecting frame to electric push rod is located under the safety inspection appearance, the safety inspection appearance is installed in the inboard upper end of connecting frame, return mechanism is located the barrier mechanism right side, return mechanism is equipped with four altogether to two are a set of one set ofly, establish both ends around the connecting frame inboard respectively, two sets of front and back symmetrical two sets of mechanisms are from the distance from the right side and are reduced.

As a further improvement of the invention, the return mechanism comprises a spring pipe sleeve, an extrusion rod, a roller and contact strips, wherein the spring pipe sleeve is fixedly arranged at the right end inside the connecting frame, the outer side end of the extrusion rod is arranged inside the spring pipe sleeve in a clearance fit manner, the roller is hinged to the inner side end of the extrusion rod, the contact strips are arranged on the outer side of the roller, the roller is positioned on the right side of the blocking mechanism, the number of the contact strips is eight, the contact strips are distributed on the outer side end face of the roller in a circular ring shape at equal intervals, and the contact strips are made of rubber materials and have better resilience.

As a further improvement of the present invention, the blocking mechanism includes an electromagnetic plate, a flexible hose, an adsorption plate, and three collision mechanisms, the electromagnetic plate is fixedly installed at the upper end inside the connecting frame, and the bottom surface of the electromagnetic plate is fixed to the upper end of the flexible hose, the lower end of the flexible hose is connected to the adsorption plate, the adsorption plate is located under the electromagnetic plate, the adsorption plate is installed at the upper end inside the connecting frame in a clearance fit manner, the collision mechanism is provided at the lower end of the adsorption plate, the collision mechanism is located at the left end inside the connecting frame, and the rollers are located at the right side of the collision mechanism, the number of the flexible hoses is three, and the flexible hoses are equidistantly distributed between the electromagnetic plate and the adsorption plate, the flexible hoses are in a pleated structure, and are made of rubber, and have good resilience and have insulation properties.

As a further improvement of the invention, the collision mechanism comprises a lifting plate, a spring rod, a hinged sliding block, two linkage rods and a buffer collision plate, wherein the upper end of the lifting plate is fixedly arranged at the lower end of the adsorption plate, the spring rod is arranged in the right end of the lifting plate, the spring rod penetrates through the hinged sliding block in a clearance fit manner, the hinged sliding block is slidably arranged in the right end of the lifting plate, the hinged sliding block is hinged with the left end of the linkage rod, the right end of the linkage rod is hinged with the middle part of the left end face of the buffer collision plate, the roller is positioned on the right side of the buffer collision plate, the hinged sliding block and the linkage rods are symmetrically arranged from top to bottom, the two hinged sliding blocks are slidably arranged in the right side of the lifting plate, and the right ends of the two linkage rods are hinged and arranged in the middle part of the left end face of the buffer collision plate.

As a further improvement of the invention, the security inspection instrument comprises a spring slide rail, an electromagnetic block, two linkage push rods, an inspector, a guide slide plate and a sealing mechanism, wherein the spring slide rail is fixedly arranged at the upper end of the inner side of a connecting frame, the electromagnetic block is arranged in the middle of the spring slide rail, the upper end of the linkage push rod is slidably arranged in the spring slide rail, the lower end of the linkage push rod is hinged with the middle end of the top of the inspector, the outer side of the inspector is slidably arranged at the inner side of the guide slide plate, the guide slide plate is fixedly arranged at the upper end of the inner side of the connecting frame, the lower end of the inspector is abutted against the sealing mechanism, the sealing mechanism is fixedly arranged at the upper end of the inner side of the connecting frame, the two linkage push rods are arranged, the upper ends of the two linkage push rods are slidably arranged at the left side and the right side in the spring slide rail, the two linkage push rods form a V-shaped structure, and the lower ends of the two linkage push rods are both hinged with the middle part of the upper end of the inspector.

As a further improvement of the invention, the sealing mechanism comprises a sealing ring, a torsion shaft, an opening and closing sheet and a cleaning plate, the sealing ring is fixedly arranged at the upper end of the inner side of the connecting frame, the inner side of the sealing ring is hinged with the outer end of the opening and closing sheet through the torsion shaft, the cleaning plate is arranged at the upper end of the opening and closing sheet, the upper end surface of the cleaning plate is abutted against the lower end of the tester, the torsion shaft, the opening and closing sheet and the cleaning plate are respectively provided with two parts and are arranged at the inner side of the sealing ring in a bilateral symmetry manner, and an elastic block is further arranged at the joint of the two cleaning plates and the two opening and closing sheets.

The invention has the beneficial effects that:

1. the roller at both ends carries out the goods between two parties and transmits the security check appearance under, ensure that the security check appearance can carry out comprehensive inspection with the goods, the goods is blockked by buffering conflict board, interlock through the trace, make articulated slider carry out elastic sliding on the spring beam, prevent that buffering conflict board thing from causing great collision dynamics to the goods in the transmission course, make the goods stagnation carry out comprehensive inspection at security check appearance lower extreme, when there is not dangerous goods in the goods, the electromagnetic plate gets the electricity and up adsorbs the adsorption plate, lose the power of blockking to the goods, make the goods transmit away from the transmission belt.

2. After the inspection work, the electricity-magnetic piece also cuts off the power supply simultaneously in the verifier outage, and at this moment interlock push rod upper end is inside the spring slide rail and is gone on the outside elasticity slip that resets, drives inside the verifier withdrawal airtight ring, applys torsion that resets to the switching piece through the torsion shaft, and the deashing of contradicting is carried out to the verifier camera lens end to clearance board when the switching piece is closed, improves the definition that the verifier formed images.

Drawings

Fig. 1 is a schematic structural diagram of a goods inspection device for electronic commerce goods according to the present invention.

FIG. 2 is a schematic view of an inner structure of an inspection mechanism according to the present invention.

Fig. 3 is a schematic top view and an enlarged internal structure of a return mechanism according to the present invention.

Fig. 4 is a schematic perspective view of a blocking mechanism according to the present invention.

Fig. 5 is a schematic cross-sectional view of an interference mechanism according to the present invention.

Fig. 6 is a schematic structural diagram of a security inspection apparatus according to the present invention.

Fig. 7 is a schematic top view of a sealing mechanism according to the present invention.

In the figure: the device comprises a display screen-t, a transmission belt-5, a support frame-z, a recovery basket-s, a checking mechanism-j, a connecting frame-j 3, a return mechanism-j 9, a blocking mechanism-j 6, an electric push rod-j 7, a security inspection instrument-j 2, a spring pipe sleeve-j 96, an extrusion rod-j 92, a roller-j 94, a contact strip-j 99, an electromagnetic plate-j 63, a telescopic hose-j 68, an adsorption plate-j 66, a collision mechanism-j 61, a lifting plate-13, a spring rod-1 t, a hinged sliding block-1 h, a linkage rod-19, a buffer collision plate-15, a spring sliding rail-j 26, an electromagnetic block-j 28, a linkage push rod-j 21, a checker-j 23, a guide sliding plate-j 25, a sealing mechanism-j 29, a sealing ring-92, a torsion shaft-9 n, an opening and closing sheet-98 and a cleaning plate-9 c.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example 1:

as shown in figures 1 to 5:

the invention relates to a goods inspection device for electronic commerce goods, which structurally comprises a display screen t, a transmission belt 5, a support frame z, a recovery basket s and an inspection mechanism j, wherein the display screen t is fixedly arranged on the rear side of the right end of the support frame z, the transmission belt 5 is arranged at the upper end of the inner side of the support frame z, the recovery basket s is arranged on the front end surface of the support frame z, the upper end of the recovery basket s is connected with the inspection mechanism j, the lower end of the inspection mechanism j is fixedly arranged on the upper end of the support frame z, the inspection mechanism j is positioned above the transmission belt 5, the inspection mechanism j comprises a connecting frame j3, a return mechanism j9, a blocking mechanism j6, an electric push rod j7 and a security inspection instrument j2, the lower end of the connecting frame j3 is fixedly arranged on the upper end of the support frame z, and the connecting frame j3 is positioned above the transmission belt 5, the inside right-hand member of connecting frame j3 is equipped with return mechanism j9, block mechanism j6 and install at the inside left end of connecting frame j3, electric push rod j7 is established at the inboard lower extreme of connecting frame j3 to electric push rod j7 is located security check appearance j2 under, security check appearance j2 is installed in the inboard upper end of connecting frame j3, return mechanism j9 is located and blocks mechanism j6 right side, return mechanism j9 is equipped with four altogether to two are a set of, establish respectively at the inboard front and back both ends of connecting frame j3, and two return mechanisms j9 of two sets of front and back symmetries are reduced from the right side to the interval on the left side, contradict the slip to the goods outside through return mechanism j9 around to be in security check appearance j2 under guaranteeing that goods are transmitted, guarantee that security check appearance j2 can carry out comprehensive inspection with the goods.

Wherein, return mechanism j9 includes spring pipe box j96, extrusion stem j92, roller j94, contact strip j99, spring pipe box j96 fixed mounting is at the inside right-hand member of link frame j3, extrusion stem j92 outside end adopts clearance fit to install inside spring pipe box j96 to the articulated roller j94 of installing of extrusion stem j92 medial extremity, the roller j94 outside is equipped with contact strip j99, roller j94 is located blocking mechanism j6 right side, contact strip j99 is equipped with eight altogether to be ring type equidistance and distribute at roller j94 outside end face, contact strip j99 adopts the rubber material, has better resilience, does benefit to roller j94 and rotates and contradict the buffering through contact strip j99 to goods outside surface, avoids the roller j94 at both ends to lead to the fact excessive extrusion to the goods around, leads to the goods to take place to damage.

The blocking mechanism j6 comprises an electromagnetic plate j63, a telescopic hose j68, an adsorption plate j66 and a collision mechanism j61, the electromagnetic plate j63 is fixedly installed at the upper end inside a connecting frame j3, the bottom surface of the electromagnetic plate j63 is fixed with the upper end of the telescopic hose j68, the lower end of the telescopic hose j68 is connected with the adsorption plate j66, the adsorption plate j66 is located under the electromagnetic plate j63, the adsorption plate j66 is installed at the upper end inside the connecting frame j3 in a clearance fit mode, the collision mechanism j61 is arranged at the lower end of the adsorption plate j66, the collision mechanism j61 is located at the left end inside the connecting frame j3, a roller j94 is located on the right side of the collision mechanism j61, the telescopic hose j68 is three in number and is distributed between the electromagnetic plate j63 and the adsorption plate j66 at equal intervals, the telescopic hose j68 is of a folding structure, is made of rubber, has good resilience and insulating performance, can exert a force on the adsorption plate j66, and can ensure that the electromagnetic plate j63 does not rebound at night.

The collision mechanism j61 comprises a lifting plate 13, a spring rod 1t, a hinged sliding block 1h, a linkage rod 19 and a buffer collision plate 15, the upper end of the lifting plate 13 is fixedly mounted at the lower end of an adsorption plate j66, the spring rod 1t is arranged inside the right end of the lifting plate 13, the spring rod 1t penetrates through the hinged sliding block 1h in a clearance fit mode, the hinged sliding block 1h is slidably mounted inside the right end of the lifting plate 13, the hinged sliding block 1h is hinged to the left end of the linkage rod 19, the right end of the linkage rod 19 is hinged to the middle of the left end face of the buffer collision plate 15, the roller j94 is located on the right side of the buffer collision plate 15, the hinged sliding blocks 1h and the linkage rod 19 are symmetrically mounted up and down, the two hinged sliding blocks 1h are slidably mounted inside the right side of the lifting plate 13, the linkage rods 19 are both hinged to the middle of the left end face of the buffer collision plate 15, and accordingly the right end of the linkage rod 19 is used for enabling the buffer collision plate 15 to generate a large collision force in a collision process.

The specific use mode and function of the embodiment are as follows:

in the invention, the logistics packaging boxes are placed on the conveying belt 5 for conveying, the logistics packaging boxes are conveyed into the inspection mechanism j for inspecting goods in the logistics packaging boxes, after the logistics packaging boxes are conveyed into the connecting frame j3, the pair of rollers j94 at the front end and the rear end are contacted, certain extrusion force is generated by the contact, at the moment, the extrusion rod j92 elastically extrudes in the spring pipe sleeve j96, and the contact strip j99 at the outer side of the roller j94 buffers the extrusion between the roller j94 and the goods, avoids the excessive extrusion of the rollers j94 at the front end and the rear end to the goods to cause the damage of the goods, meanwhile, the rollers j94 at the front end and the rear end transmit the goods to the position right below the security check instrument j2 in a centered manner, so that the security check instrument j2 can perform comprehensive inspection on the goods, when the goods are transmitted to the position right below the security check instrument j2, the goods are blocked by the buffer collision plate 15, the buffer collision plate 15 is extruded in the blocking process, the hinge sliding block 1h elastically slides on the spring rod 1t through the linkage of the linkage rod 19, so that the buffer touch panel 15 can perform stable offset buffering in the process of collision blocking of the goods, the buffer touch panel 15 can be prevented from causing larger collision force to the goods in the transmission process, the goods can be stopped at the lower end of the security inspection instrument j2 for comprehensive inspection, when no dangerous goods exist in the goods, the electromagnetic plate j63 is electrified to adsorb the adsorption plate j66 upwards, the lifting plate 13 and the buffer abutting plate 15 are driven to move upwards, the blocking force to the goods is lost, the goods are conveyed out from the conveying belt 5, when dangerous goods exist in the goods, the lifting plate 13 is kept still, and at the moment, the electric push rod j7 is electrified to push the goods to the interior of the recycling basket s for separation.

Example 2:

as shown in figures 6 to 7:

wherein, the security check instrument j2 comprises a spring slide rail j26, an electromagnetic block j28, a linkage push rod j21, a checker j23, a guide slide plate j25 and a sealing mechanism j29, the spring slide rail j26 is fixedly arranged at the upper end of the inner side of a connecting frame j3, the electromagnetic block j28 is arranged in the middle of the spring slide rail j26, the upper end of the linkage push rod j21 is slidably arranged in the spring slide rail j26, the lower end of the linkage push rod j21 is hinged with the middle end of the top of the checker j23, the outer side of the checker j23 is slidably arranged at the inner side of the guide slide plate j25, the guide slide plate j25 is fixedly arranged at the upper end of the inner side of the connecting frame j3, the lower end of the checker j23 is abutted against the sealing mechanism j29, and the sealing mechanism j29 is fixedly arranged at the upper end of the inner side of the connecting frame j3, the linkage push rods j21 are provided with two linkage push rods j21, the upper ends of the two linkage push rods j21 are slidably mounted on the left side and the right side inside the spring slide rail j26, the two linkage push rods j21 form a V-shaped structure, the lower ends of the two linkage push rods j21 are hinged with the middle of the upper end of the checker j23, the upper ends of the linkage push rods j21 on the two sides are electromagnetically adsorbed through an electromagnetic block j28 in the middle of the spring slide rail j26, the linkage push rods j21 are enabled to be in linkage to downwards push the checker j23 to stretch out of the inside of a sealing mechanism j29, so that goods are checked, when the device does not work, the lens end of the checker j23 is sealed and protected through the sealing mechanism j29, and dust is prevented from being adsorbed by the lens end of the checker j23 or collision damage is prevented.

The closed mechanism j29 comprises a closed ring 92, a torsion shaft 9n, an opening and closing sheet 98 and a cleaning plate 9c, the closed ring 92 is fixedly installed at the upper end of the inner side of the connecting frame j3, the inner side of the closed ring 92 is hinged with the outer side end of the opening and closing sheet 98 through the torsion shaft 9n, the cleaning plate 9c is arranged at the upper end of the opening and closing sheet 98, the upper end face of the cleaning plate 9c is abutted to the lower end of the tester j23, the torsion shaft 9n, the opening and closing sheet 98 and the cleaning plate 9c are respectively provided with two parts and are installed at the inner side of the closed ring 92 in a bilateral symmetry manner, an elastic block is further arranged at the joint of the two cleaning plates 9c and the two opening and closing sheets 98, the elastic block applies elastic force to enable the cleaning plate 9c to perform elastic buffering on the opening and closing sheet 98, and guarantees that the cleaning plate 9c effectively cleans the lens end of the tester j23 and simultaneously performs buffering protection on the lens end of the tester j 23.

The specific use mode and function of the embodiment are as follows:

in the invention, when a checker j23 is used for checking goods at the lower end, the checker j23 is electrified and the electromagnetic block j28 is synchronously electrified, so that the electromagnetic block j28 carries out synchronous electromagnetic adsorption on the upper ends of the linkage push rods j21 at two sides, the upper end of the linkage push rod j21 is drawn towards the middle part in the spring slide rail j26, so that the lower end of the linkage push rod j21 pushes the checker j23 to move downwards, the checker j23 is guided to move through the guide slide plates j25 at two sides, the checker j23 is ensured to move downwards vertically, the lens end at the lower end of the checker j23 is abutted against the shutter 98 downwards in the moving process, so that the shutter 98 rotates downwards around the torsion shaft 9n, the lens end at the lower end of the checker j23 extends out of the inside of the closed ring 92 to check the goods at the lower end, after the checking work is finished, the checker j23 is powered off and the linkage push rod j28 is also powered off, the upper end of the push rod j21 is abutted against the outer side in the spring slide rail j26 to elastically reset, so as to drive the checker j23 to retract into the closed ring 92, the closed torsion shaft 92 is lost, the clearance effect of the shutter 98 is simultaneously, and the shutter 23 is simultaneously exerted on the closed shutter 23, and the cleaning effect of the closed shutter 23 is improved by the closed end of the closed shutter 23.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.

Claims

1. The utility model provides a examine goods equipment for electronic commerce goods, its structure includes display screen (t), transmission band (5), support frame (z), retrieves basket(s), inspection mechanism (j), display screen (t) fixed mounting is in support frame (z) right-hand member rear side to transmission band (5) are installed in support frame (z) inboard upper end, retrieve basket(s) and establish terminal surface before support frame (z) to retrieve basket(s) upper end and be connected with inspection mechanism (j), inspection mechanism (j) lower extreme fixed mounting is in support frame (z) upper end, and inspection mechanism (j) are located transmission band (5) top, its characterized in that:

inspection mechanism (j) is including connection frame (j 3), return mechanism (j 9), blocking mechanism (j 6), electric push rod (j 7), security check appearance (j 2), connection frame (j 3) lower extreme fixed mounting is in support frame (z) upper end to connection frame (j 3) is located transmission band (5) top, connection frame (j 3) inboard right-hand member is equipped with return mechanism (j 9), blocking mechanism (j 6) is installed at the inside left end of connection frame (j 3), electric push rod (j 7) is established at connection frame (j 3) inboard lower extreme to electric push rod (j 7) is located security check appearance (j 2) under, security check appearance (j 2) are installed at connection frame (j 3) inboard upper end, return mechanism (j 9) is located blocking mechanism (j 6) right side.

2. The apparatus as claimed in claim 1, wherein: the return mechanism (j 9) comprises a spring pipe sleeve (j 96), an extrusion rod (j 92), a roller (j 94) and a contact strip (j 99), the spring pipe sleeve (j 96) is fixedly installed at the right end inside the connecting frame (j 3), the outer end of the extrusion rod (j 92) is installed inside the spring pipe sleeve (j 96) in a clearance fit mode, the roller (j 94) is installed at the inner side end of the extrusion rod (j 92) in a hinged mode, the contact strip (j 99) is arranged on the outer side of the roller (j 94), and the roller (j 94) is located on the right side of the blocking mechanism (j 6).

3. The apparatus as claimed in claim 2, wherein the apparatus further comprises: blocking mechanism (j 6) includes electromagnetic plate (j 63), expansion tube (j 68), adsorption plate (j 66), conflict mechanism (j 61), electromagnetic plate (j 63) fixed mounting is in the inside upper end of connection frame (j 3) to electromagnetic plate (j 63) bottom surface is fixed mutually with expansion tube (j 68) upper end, expansion tube (j 68) lower extreme is connected with adsorption plate (j 66), adsorption plate (j 66) are located under electromagnetic plate (j 63), adsorption plate (j 66) adopt clearance fit to install in the inside upper end of connection frame (j 3), adsorption plate (j 66) lower extreme is equipped with conflict mechanism (j 61), conflict mechanism (j 61) are located the inside left end of connection frame (j 3) to roller (j 94) are located conflict mechanism (j 61) right side.

4. The apparatus as claimed in claim 3, wherein the apparatus further comprises: conflict mechanism (j 61) includes lifter plate (13), spring beam (1 t), articulated slider (1 h), trace (19), buffering conflict board (15), lifter plate (13) upper end fixed mounting is at adsorption plate (j 66) lower extreme to lifter plate (13) right-hand member inside is equipped with spring beam (1 t), spring beam (1 t) adopts clearance fit to run through inside articulated slider (1 h), articulated slider (1 h) slidable mounting is inside lifter plate (13) right-hand member, articulated slider (1 h) is articulated with trace (19) left end to trace (19) right-hand member and buffering are supported touch panel (15) left side terminal surface middle part and are articulated mutually, roller (j 94) are located buffering and are supported touch panel (15) right side.

5. The apparatus as claimed in claim 1, wherein: the security check instrument (j 2) comprises a spring slide rail (j 26), an electromagnetic block (j 28), a linkage push rod (j 21), a checker (j 23), a guide slide plate (j 25) and a sealing mechanism (j 29), wherein the spring slide rail (j 26) is fixedly installed at the upper end of the inner side of a connecting frame (j 3), the electromagnetic block (j 28) is arranged in the middle of the spring slide rail (j 26), the upper end of the linkage push rod (j 21) is slidably installed inside the spring slide rail (j 26), the lower end of the linkage push rod (j 21) is hinged to the middle end of the top of the checker (j 23), the outer side of the checker (j 23) is slidably installed at the inner side of the guide slide plate (j 25), the guide slide plate (j 25) is fixedly installed at the upper end of the inner side of the connecting frame (j 3), the lower end of the checker (j 23) is abutted to the sealing mechanism (j 29), and the sealing mechanism (j 29) is fixedly installed at the upper end of the inner side of the connecting frame (j 3).

6. The apparatus as claimed in claim 5, wherein the apparatus further comprises: the airtight mechanism (j 29) comprises an airtight ring (92), a torsion shaft (9 n), an opening and closing sheet (98) and a cleaning plate (9 c), the airtight ring (92) is fixedly installed at the upper end of the inner side of the connecting frame (j 3), the inner side of the airtight ring (92) is hinged to the outer end of the opening and closing sheet (98) through the torsion shaft (9 n), the cleaning plate (9 c) is arranged at the upper end of the opening and closing sheet (98), and the upper end face of the cleaning plate (9 c) is abutted to the lower end of the checker (j 23).