阅读说明：本技术 可遮蔽品牌信息的卷烟盲评装置 (Blind cigarette evaluation device capable of shielding brand information ) 是由 赵立文 于 2021-08-05 设计创作，主要内容包括：一种可遮蔽品牌信息的卷烟盲评装置,该装置包括遮蔽体,其由可分离的第一半遮蔽体与第二半遮蔽体对合连接而成,对合连接后的第一半遮蔽体与第二半遮蔽体两端部分别设有遮蔽板,遮蔽板中央形成卷烟孔。卷烟限位板,其包括分别设置在第一半遮蔽体和第二半遮蔽体内的第一弹性限位板和第二弹性限位板,它们分别与卷烟外表面相接触；磁性连接件,其分别设置在第一半遮蔽体和第二半遮蔽体外侧,通过磁力使第一半遮蔽体与第二半遮蔽体对合锁定；磁性解锁件,其分别设置在第一半遮蔽体和第二半遮蔽体上,其通过同磁极相斥使第一半遮蔽体与第二半遮蔽体解锁而使两者相分离。(A blind evaluation device for cigarettes capable of shielding brand information comprises a shielding body, wherein the shielding body is formed by connecting a first half shielding body and a second half shielding body in a matching mode, the first half shielding body and the second half shielding body are connected in a matching mode, shielding plates are arranged at two end portions of the first half shielding body and the second half shielding body respectively, and a cigarette rolling hole is formed in the center of each shielding plate. The cigarette limiting plate comprises a first elastic limiting plate and a second elastic limiting plate which are respectively arranged in the first half shielding body and the second half shielding body and are respectively contacted with the outer surface of the cigarette; the magnetic connecting pieces are respectively arranged at the outer sides of the first half shielding body and the second half shielding body and enable the first half shielding body and the second half shielding body to be locked in a matching way through magnetic force; and the magnetic unlocking piece is respectively arranged on the first half shielding body and the second half shielding body, and the first half shielding body and the second half shielding body are unlocked through the repulsion of the same magnetic pole so as to separate the first half shielding body and the second half shielding body.)

1. A blind cigarette evaluation device capable of shielding brand information is characterized by comprising:

the shielding body (10) is formed by connecting a first half shielding body (11) and a second half shielding body (12) in a matching way, wherein the two ends of the shielding body (10) after the connection in the matching way are respectively provided with a shielding plate (14), and the center of the shielding plate (14) forms a cigarette rolling hole (13);

the cigarette limiting plate (20) comprises a first elastic limiting plate (21) and a second elastic limiting plate (22) which correspond to each other in position, the first elastic limiting plate (21) and the second elastic limiting plate (22) are respectively arranged in the first half shielding body (11) and the second half shielding body (12), and two ends, which are contacted with the outer surface of a cigarette, of the first elastic limiting plate (21) and the second elastic limiting plate (22) are provided with one or more sharp teeth (211, 221);

the magnetic connecting piece (30) is respectively arranged at the outer sides of the first half shielding body (11) and the second half shielding body (12), and the magnetic connecting piece (30) enables the first half shielding body (11) and the second half shielding body (12) to be locked in a matching way through elasticity and magnetic force;

a magnetic unlocking member (40) respectively disposed on the first half shielding body (11) and the second half shielding body (12), for unlocking the first half shielding body (11) and the second half shielding body (12) to separate them by the repulsion of the same magnetic pole, and

when the cigarette is evaluated blindly, the cigarette to be evaluated is placed in the cigarette hole (13) of the shielding body (10), the filter tip part of the cigarette is exposed outside the shielding body, and the main body part of the cigarette is completely shielded; after the blind evaluation is finished, the first half shielding body (11) is separated from the second half shielding body (12) through a magnetic unlocking piece (40).

2. The blind cigarette evaluation device capable of shielding brand information according to claim 1, wherein the first half shielding body (11) is a strip-shaped groove body with one side open, one or more first vent holes (113) and second vent holes (114) are arranged at the position where the top of the first half shielding body (11) is shielded by the first elastic limiting plate (21) and the position of the side surface close to the top surface, at least two pin bases (111) are respectively arranged at the outer sides of two side plates of the first half shielding body (11) at intervals, the upper end and the lower end of each pin base (111) are respectively provided with a first pin hole (1111) and a first connecting hole (1112) which correspond to each other in position, at least two first bolt holes (1111) at the upper end of the bolt seat (111) are respectively provided with a bolt (112) in a penetrating way, each plug pin (112) is provided with at least one radial groove (1121) for limiting.

3. The blind cigarette evaluation device capable of shielding brand information according to claim 2, wherein the second semi-shielding body (12) is a strip-shaped groove body with one side opened corresponding to the shape and size of the first semi-shielding body (11), one or more third ventilation holes (122) and fourth ventilation holes (123) are arranged at the position of the bottom of the second semi-shielding body (12) shielded by the second elastic limiting plate (22) and the position of the side surface close to the bottom surface, a magnetic connecting piece base (121) is respectively arranged at the position of the outer side of the two side plates of the second semi-shielding body corresponding to the position between the two pin seats (111) on the first semi-shielding body, the upper end and the lower end of the magnetic connecting piece base (121) are respectively provided with a first pin hole (1111) on the first semi-shielding body and a second pin hole (1211) and a second connecting hole (1212) corresponding to the position of the first connecting hole (1112), a vertical magnetic connector accommodating cavity (1213) is formed in the magnetic connector base (121), a transverse magnetic connector accommodating cavity (1214) is arranged below the vertical magnetic connector accommodating cavity (1213), the transverse magnetic connector accommodating cavity (1214) is communicated with the second connecting hole (1212), and the upper end of the vertical magnetic connector accommodating cavity (1213) is communicated with the first bolt hole (1111) in the first half shielding body.

4. The blind cigarette evaluation device capable of shielding brand information according to claim 1, wherein the cigarette limiting plate (20) is a trapezoidal plate made of hard elastic material, the first elastic limiting plate (21) and the second elastic limiting plate (22) are symmetrically fixed in the first half shielding body (11) and the second half shielding body (12), the middle parts of the first elastic limiting plate (21) and the second elastic limiting plate (22) are respectively fixed at the top and the bottom of the first half shielding body (11) and the second half shielding body (12), and the two ends of the first elastic limiting plate and the second elastic limiting plate are turned towards the center direction of the cigarette hole (13) of the shielding body.

5. The blind cigarette evaluation device capable of shielding brand information as claimed in claim 2, wherein the magnetic connectors (30) comprise two sets of vertical connectors (31) and two sets of transverse connectors (32), wherein the two sets of vertical connectors (31) are respectively disposed in two vertical magnetic connector receiving cavities (1213) of the second half shielding body, the vertical magnetic connector receiving cavities are communicated with the second pin hole (1211) of the second half shielding body through holes (1215), the two sets of transverse connectors (32) are disposed in two transverse magnetic connector receiving cavities (1214) of the second half shielding body, and the transverse magnetic connector receiving cavities are communicated with the second connecting hole (1212) of the second half shielding body.

6. The blind cigarette evaluation device capable of shielding brand information as claimed in claim 5, wherein each set of vertical connectors (31) comprises a first magnetic pillar (311) and a spring (312), the first magnetic pillar (311) is two sections of cylinders made of permanent magnetic material and having different diameters, wherein the small-diameter cylinder (3111) is in arc transition with the end surface, the spring (312) and the first magnetic pillar (311) are arranged in the vertical magnetic connector accommodating cavity (1213) of the second semi-shielding body from bottom to top, and the front end of the small-diameter cylinder (3111) of the first magnetic pillar enters the through hole (1215) of the vertical magnetic connector accommodating cavity.

7. The blind cigarette evaluation device capable of masking brand information according to claim 5, each group of transverse connecting pieces (32) is composed of a pair of second magnetic attraction columns (321), the second magnetic attraction columns (321) are two sections of cylinders made of permanent magnetic materials and with different diameters, the small-diameter cylinder (3211) and the end face are in arc transition, a pair of second magnetic poles (321) is transversely arranged in the transverse magnetic connector accommodating cavity (1214) of the second semi-shielding body, the magnetic poles of the opposite ends of the two second magnetic poles (321) are the same, the two second magnetic poles (321) enable the front end of the small-diameter cylinder (3211) of the second magnetic pole to enter the second connecting hole (1212) of the second semi-shielding body and the first connecting hole (1112) of the first semi-shielding body (11) under the pushing of the magnetic pole repulsion force, and the first semi-shielding body (11) is connected with the second semi-shielding body (12).

8. The blind cigarette evaluation device capable of shielding brand information as claimed in claim 6, wherein the first magnetic attraction column (311) of each group of vertical connectors enables the front end of the first magnetic attraction column to be inserted into a radial groove (1121) on the plug pin of the first half shielding body through a through hole (1215) of the vertical magnetic connector accommodating cavity under the elastic force of the spring (312), so as to connect the first half shielding body (11) with the second half shielding body (12).

9. The blind evaluation device of cigarettes with shielding brand information according to claim 1, wherein the magnetic unlocking member (40) comprises a first unlocking member (41) and a second unlocking member (42), after the blind evaluation is finished, the first unlocking member (41) is placed on the upper portion of the first half shielding body (11), and the second unlocking member (42) is installed on the lower portion of the second half shielding body (12), so that the two sets of vertical connecting members (31) and the two sets of transverse connecting members (32) are separated from the first half shielding body (11) and the second half shielding body (12) respectively to be unlocked.

10. The blind cigarette evaluation device capable of shielding brand information according to claim 9, wherein the first unlocking member (41) comprises a first unlocking seat (411) and a first magnetic attraction block (412), the first unlocking seat (411) is a rectangular block-shaped body, two vertical through holes (4111) corresponding to the positions of two pins ((112) of the first half shielding body are formed in the first unlocking seat, one first magnetic attraction block (412) made of magnetic material is respectively arranged in each vertical through hole, the two first magnetic attraction blocks (412) are the same as the magnetic poles of the opposite ends of the first magnetic attraction columns (311) of the two vertical connecting members, the vertical connecting member (31) is separated from the first half shielding body (11) through magnetic pole repulsion force to unlock, the second unlocking member (42) comprises a second unlocking seat (421) and a third magnetic attraction column (422), the second unlocking seat (421) comprises a bottom plate (4211) and four ear seats (4212) arranged at four opposite corners of the bottom plate, each ear seat (4212) is provided with a magnetic attraction column hole (42121) with the position corresponding to the second connecting hole on the second half shielding body, each magnetic attraction column hole (42121) is internally provided with a third magnetic attraction column (422) made of magnetic material, the magnetic poles of the opposite ends of the four third magnetic attraction columns (422) and the two second magnetic attraction columns (321) are the same, and the transverse connecting piece (32) is separated from the second half shielding body (12) through magnetic pole repulsion force to unlock.

[ technical field ] A method for producing a semiconductor device

The invention relates to a cigarette quality evaluation device, in particular to a blind cigarette evaluation device which can shield brand information and enable an evaluator not to see any cigarette brand information completely.

[ background of the invention ]

Cigarettes are well known smoking articles. The quality of the cigarettes needs to be detected according to the national standards of the cigarettes, and the quality detection is divided into three aspects: 1. and (3) identifying color and flavor: the evaluation group scores the color, the fragrance, the harmony, the miscellaneous gas, the irritation and the aftertaste through sensory evaluation to determine the quality; 2. physical detection: measuring the length, circumference, weight, suction resistance, hardness, appearance, mouth joint, lap, dust content and combustibility of the cigarette, and checking the package to determine whether the cigarette is qualified or not; 3. analyzing the chemical components of the tobacco shreds: the stable conditions of total sugar, nicotine (namely nicotine), total nitrogen content and sugar-base ratio are checked, a smoking machine is used for smoking smoke to check the contents of tar, nicotine, carbon monoxide and the like, and the low tar content, the medium-grade level and the high-grade level marked on the small box package are verified. The existing color and flavor identification is mainly to wrap the cigarette by coil paper through smoking evaluation. It can produce the hidden trouble of cigarette pollution, and is neither sanitary, also probably influences cigarette quality. Meanwhile, the cigarettes are wrapped by the bobbin paper, so that the time and the labor are wasted, the efficiency is low, and the problem that the evaluation staff checks the information of the cigarette brand is not avoided, and the objective fairness of the cigarette evaluation is influenced. Therefore, the evaluation of the cigarette sensory quality by the evaluation of the judges without knowing the information of the cigarette brand is an objective requirement for avoiding cheating in evaluation and guaranteeing the justice of cigarette evaluation.

[ summary of the invention ]

The invention aims to solve the problems and provides a blind cigarette evaluation device which can completely shield information of manufacturers, brands and the like of cigarettes, so that an evaluator can evaluate an evaluated object under the condition that the evaluator is completely unaware of the evaluation, thereby realizing the fairness and objectivity of the evaluation, improving the evaluation efficiency and preventing cigarette pollution.

In order to achieve the above object, the present invention provides a blind evaluation device for cigarettes capable of shielding brand information, the device comprising:

the shielding body is formed by connecting a first shielding body half and a second shielding body half which can be separated in an involutive way, two end parts of the involutive and connected shielding body are respectively provided with a shielding plate, and the center of the shielding plate forms a cigarette rolling hole;

the cigarette limiting plate comprises a first elastic limiting plate and a second elastic limiting plate which correspond to each other in position, the first elastic limiting plate and the second elastic limiting plate are respectively arranged in the first semi-shielding body and the second semi-shielding body, and two ends, which are in contact with the outer surface of a cigarette, of the first elastic limiting plate and the second elastic limiting plate are provided with one or more sharp teeth;

the magnetic connecting piece is respectively arranged at the outer sides of the first half shielding body and the second half shielding body, and the magnetic connecting piece enables the first half shielding body and the second half shielding body to be locked in a closing way through elasticity and magnetic force;

a magnetic unlocking piece respectively arranged on the first half shielding body and the second half shielding body, which unlocks the first half shielding body and the second half shielding body through the repulsion of the same magnetic pole to separate the two shielding bodies, and

when the cigarette is evaluated blindly, the cigarette to be evaluated is placed in the cigarette hole of the shielding body, the filter tip part of the cigarette is exposed outside the shielding body, and the main body part of the cigarette is completely shielded; after the blind evaluation is finished, the first half shielding body is separated from the second half shielding body through the magnetic unlocking piece.

The first half shields the body for the open bar groove body in one side, and the top of this first half shields the body by the position that first elasticity limiting plate sheltered from and the position that the side is close to the top surface are equipped with one or more first ventilation hole, second ventilation hole, shield body both sides board outside at first half respectively the interval and are provided with two at least bolt seats, and the upper and lower both ends of each bolt seat are equipped with corresponding first bolt hole in position and first connecting hole respectively, wear to be equipped with a bolt in two at least first bolt holes of bolt seat upper end respectively, are equipped with the radial recess of at least one spacing usefulness on each bolt.

The second semi-shielding body is a strip-shaped groove body with one side opened corresponding to the shape and size of the first semi-shielding body, one or more third vent holes and fourth vent holes are arranged at the position of the bottom of the second semi-shielding body shielded by the second elastic limiting plate and the position of the side surface close to the bottom surface, a magnetic connecting piece base is respectively arranged at the positions corresponding to the positions between the two bolt seats on the first semi-shielding body outside the two side plates of the second semi-shielding body, the upper end and the lower end of the magnetic connecting piece base are respectively provided with a first bolt hole on the first semi-shielding body, a second bolt hole and a second connecting hole corresponding to the positions of the first connecting hole, a vertical magnetic connecting piece accommodating cavity is arranged on the magnetic connecting piece base, a horizontal magnetic connecting piece accommodating cavity is arranged below the vertical magnetic connecting piece accommodating cavity, and the horizontal magnetic connecting piece accommodating cavity is communicated with the second connecting hole, the upper end of the vertical magnetic connecting piece accommodating cavity is communicated with a first bolt hole on the first half shielding body.

The cigarette limiting plate is a trapezoidal plate-shaped body made of hard elastic materials, a first elastic limiting plate and a second elastic limiting plate are symmetrically fixed in the first half shielding body and the second half shielding body, the middle parts of the first elastic limiting plate and the second elastic limiting plate are respectively fixed at the top and the bottom of the first half shielding body and the second half shielding body, and two ends of the first elastic limiting plate and the second elastic limiting plate are bent towards the central direction of a cigarette hole of the shielding body.

The magnetic connecting pieces comprise two groups of vertical connecting pieces and two groups of transverse connecting pieces, wherein the two groups of vertical connecting pieces are respectively arranged in two vertical magnetic connecting piece accommodating cavities of the second half shielding body, the vertical magnetic connecting piece accommodating cavities are communicated with a second bolt hole of the second half shielding body through holes, the two groups of transverse connecting pieces are arranged in two transverse magnetic connecting piece accommodating cavities of the second half shielding body, and the transverse magnetic connecting piece accommodating cavities are communicated with a second connecting hole of the second half shielding body.

Every vertical connecting piece of group includes first magnetism and inhales post and spring, first magnetism is inhaled the post and is two sections different cylinders of diameter that are made by permanent magnetic material, wherein, passes through by the circular arc between minor diameter cylinder and the terminal surface, spring and first magnetism are inhaled the post from bottom to top and are in the vertical magnetism connecting piece holding intracavity of the body is partly shielded to the second, the front end of the minor diameter cylinder of first magnetism gets into in the through-hole in vertical magnetism connecting piece holding chamber.

Each group of transverse connecting pieces is composed of a pair of second magnetic attraction columns, the second magnetic attraction columns are two sections of cylinders made of permanent magnetic materials and different in diameter, the small-diameter cylinders are in arc transition with the end faces, the pair of second magnetic attraction columns are transversely arranged in the transverse magnetic connecting piece accommodating cavity of the second half shielding body, the magnetic poles of the opposite ends of the two second magnetic attraction columns are the same, and the two second magnetic attraction columns enable the front ends of the small-diameter cylinders of the second magnetic attraction columns to enter the second connecting holes of the second half shielding body and the first connecting holes of the first half shielding body under the pushing of magnetic pole repulsive force to connect the first half shielding body with the second half shielding body.

The front end of the first magnetic attraction column of each group of vertical connecting pieces is inserted into the radial groove on the bolt of the first half shielding body through the through hole of the containing cavity of the vertical magnetic connecting piece under the elastic force action of the spring, so that the first half shielding body is connected with the second half shielding body.

Magnetism unlocking piece includes first unlocking piece and second unlocking piece, and after the blind evaluation, will first unlocking piece is adorned on first half shield body upper portion, with second unlocking piece dress in the half shield body lower part of second for two sets of vertical connecting piece and two sets of transverse connection spare are separated and the unblock with first half shield body and the half shield body of second respectively.

The first unlocking part comprises a first unlocking seat and a first magnetic suction block, the first unlocking seat is a rectangular block body, two vertical through holes corresponding to the two bolt positions of the first half shielding body are formed in the first unlocking seat, a first magnetic suction block made of a magnetic material is arranged in each vertical through hole, the magnetic poles of the two first magnetic suction blocks and the opposite ends of the first magnetic suction columns of the two vertical connecting pieces are the same, and the vertical connecting pieces are separated from the first half shielding body through magnetic pole repulsive force to unlock the first unlocking part; the second unlocking part comprises a second unlocking seat and a third magnetic attraction column, the second unlocking seat comprises a bottom plate and four lug seats arranged at four opposite corners of the bottom plate, each lug seat is provided with a magnetic attraction column hole corresponding to the second connecting hole on the second half shielding body in position, a third magnetic attraction column made of magnetic material is respectively arranged in each magnetic attraction column hole, the magnetic poles of the opposite ends of the four third magnetic attraction columns and the two second magnetic attraction columns are the same, and the transverse connecting part is separated from the second half shielding body through magnetic pole repulsion force to unlock the second half shielding body.

The contribution of the invention lies in that the problems that the existing cigarette evaluation lacks a scientific and efficient evaluation device, so that the unfairness of evaluation, low efficiency and the like are difficult to avoid are effectively solved. According to the cigarette evaluation device, the separable shielding body structure is arranged, and the shielding bodies can be simply and quickly connected and separated through the magnetic connecting piece, so that the cigarette evaluation efficiency is greatly improved. The shielding body can completely shield the put-in cigarettes, and the cigarettes are prevented from being drawn out manually by the sharp-tooth cigarette limiting plate, so that related evaluating personnel cannot acquire cigarette information of brand, manufacturers and the like of the cigarettes, thereby effectively avoiding the human cheating behavior of the evaluating personnel and ensuring the objectivity and fairness of cigarette quality evaluation.

[ description of the drawings ]

Fig. 1 is a perspective view of the overall structure of the invention before unlocking.

Fig. 2 is an exploded perspective view of the present invention prior to unlocking.

Fig. 3 is a bottom exploded perspective view of the present invention prior to unlocking.

Fig. 4 is a perspective view of the overall structure of the invention when unlocked.

Fig. 5 is an exploded perspective view of the present invention when unlocked.

[ detailed description ] embodiments

The following examples are further illustrative and explanatory of the present invention and are not to be construed as limiting the invention in any way.

Referring to fig. 1, 2 and 4, the blind cigarette evaluation device capable of shielding brand information of the present invention includes a shielding body 10, a cigarette limiting plate 20, a magnetic connecting member 30 and a magnetic unlocking member 40.

As shown in fig. 1 to 4, the shielding body 10 includes a first half shielding body 11 and a second half shielding body 12, and the first half shielding body 11 and the second half shielding body 12 are connected together by a magnetic connecting piece 30 during cigarette evaluation. After the cigarette evaluation is finished, the first half shielding body 11 and the second half shielding body 12 are separated from each other by unlocking the magnetic unlocking piece 40.

Specifically, as shown in fig. 2, the first half shielding body 11 is a strip-shaped groove body with an open connecting side, and is made of opaque, odorless, high-temperature resistant, flame-retardant hard material, such as hard plastic, nylon, rubber, metal, and the like. The top of the first half shielding body 11 is provided with a plurality of first ventilation holes 113 at the position shielded by the first elastic limiting plate 21, the side of the first half shielding body 11 close to the top surface is also provided with a plurality of second ventilation holes 114, the first and second ventilation holes 113 and 114 are fine holes, which can shield the information of the cigarette brand, do not influence the cigarette evaluation and can ventilate the cigarette. Two pin bases 111 are respectively arranged on the outer sides of two side plates of the first half shielding body 11, and the two pin bases 111 are arranged at intervals along the length direction of the first half shielding body. A first latch hole 1111 and a first connection hole 1112 are respectively formed at the upper and lower ends of each latch base 111, and the first latch hole 1111 and the first connection hole 1112 are arranged at the upper and lower positions thereof. Two first bolt holes 1111 at the upper end of the bolt seat 111 are respectively provided with a bolt 112 in a penetrating way, and each bolt 112 is provided with a plurality of radial grooves 1121 for inserting and limiting the vertical connecting piece 31 of the magnetic connecting piece.

As shown in fig. 2, the second half shielding body 12 is a strip-shaped groove body with an open connecting side, and is made of opaque, odorless, high-temperature resistant, flame-retardant hard material, such as hard plastic, nylon, rubber, metal, etc., and the shape and size of the second half shielding body 12 correspond to those of the first half shielding body 11. The bottom of the second half shielding body 12 is provided with a plurality of third ventilation holes 122 at the position shielded by the second elastic limiting plate 22, the side of the second half shielding body 12 close to the bottom is also provided with a plurality of fourth ventilation holes 123, the third and fourth ventilation holes 122 and 123 are fine holes, which can shield the information of the cigarette brand, do not influence the cigarette evaluation and can ventilate the cigarette. A magnetic connector base 121 is respectively arranged on the outer sides of two side plates of the second half shielding body 12, and the magnetic connector base corresponds to the position between two pin bases 111 on the first half shielding body. The magnetic connector base 121 has a second pin hole 1211 and a second connection hole 1212 at its upper and lower ends, respectively, and the second pin hole 1211 and the second connection hole 1212 correspond to the first pin hole 1111 and the first connection hole 1112 of the first half shielding body in position. A rectangular parallelepiped vertical magnetic connector receiving cavity 1213 is disposed at the middle upper portion of the magnetic connector base 121, and a rectangular parallelepiped transverse magnetic connector receiving cavity 1214 is disposed below the vertical magnetic connector receiving cavity 1213, and two ends of the transverse magnetic connector receiving cavity 1214 are connected to the second connecting hole 1212. The upper end of the vertical magnetic connector accommodating cavity 1213 is communicated with the first pin hole 1111 of the first half shielding body.

As shown in fig. 1, U-shaped shielding plates are respectively disposed at two ends of the first half shielding body 11 and the second half shielding body 12, after the first half shielding body 11 and the second half shielding body 12 are connected in an involution manner, the U-shaped shielding plates at the two ends are involuted to form a shielding plate 14, a cigarette hole 13 through which a single cigarette can pass is formed in the center of the shielding plate 14, the evaluated cigarette is placed in the shielding body 10, and two ends of the cigarette pass through the cigarette hole 13. The shielding body 10 and the shielding plates 14 at both ends completely shield the brand information of the cigarettes.

As shown in fig. 1 and 2, a cigarette limiting plate 20 is disposed in the shielding body 10, the cigarette limiting plate 20 is a trapezoidal plate made of hard elastic material, and includes a first elastic limiting plate 21 and a second elastic limiting plate 22, the first elastic limiting plate 21 and the second elastic limiting plate 22 are respectively disposed in the first half shielding body 11 and the second half shielding body 12, and the positions of the first elastic limiting plate 21 and the second elastic limiting plate are corresponding to each other. Specifically, the first elastic limiting plate 21 and the second elastic limiting plate 22 are symmetrically fixed in the first half shielding body 11 and the second half shielding body 12, the middle parts of the first elastic limiting plate 21 and the second elastic limiting plate 22 are respectively fixed at the top and the bottom of the first half shielding body 11 and the second half shielding body 12, and the two ends thereof are bent towards the center direction of the cigarette hole 13 of the shielding body, so as to press the cigarette from the two sides, and the first elastic limiting plate 21 and the second elastic limiting plate 22 are in contact with the outer surface of the cigarette. The two end parts of the first elastic limiting plate 21 and the second elastic limiting plate 22 are provided with a plurality of sharp teeth 211 and 221 which are used for limiting the position of the cigarette, when the cigarette is inserted into the shielding body 10 and then is manually pulled, the sharp teeth 211 and 221 scratch the surface of the cigarette, so that the evaluation result can be subjected to invalid treatment, the objective fairness of the evaluation data can be ensured, and the ventilation of the cigarette can be kept without influencing the original quality of the cigarette.

The first half shutter 11 and the second half shutter 12 are connected by a magnetic coupling 30. The magnetic connectors 30 are respectively disposed outside the first half shielding body 11 and the second half shielding body 12, and the first half shielding body 11 and the second half shielding body 12 are locked by the elastic force and the magnetic force.

As shown in fig. 1, 2 and 3, the magnetic connector 30 includes two sets of vertical connectors 31 and two sets of horizontal connectors 32, which cooperate with the latch base 111 and the magnetic connector base 121 to lock the first half shutter 11 and the second half shutter 12. The two sets of vertical connectors 31 are movably disposed in the two vertical magnetic connector accommodating cavities 1213 of the second half shielding body, and the vertical magnetic connector accommodating cavities 1213 are communicated with the second pin hole 1211 of the second half shielding body through the through hole 1215. Specifically, each set of vertical connectors 31 includes a first magnetic pole 311 and a spring 312, where the first magnetic pole 311 is two stepped cylinders made of a permanent magnetic material, such as neodymium iron boron, and the diameters of the two stepped cylinders are different, and a circular arc is used for transition between the small-diameter cylinder 3111 and the end surface, so that the small-diameter cylinder 3111 can smoothly enter the through hole 1215. The spring 312 is a compression spring, and is disposed in the vertical magnetic connector accommodating cavity 1213 of the second half shielding body from bottom to top together with the first magnetic attraction column 311. The front end of the small diameter cylinder 3111 of the first magnetic pole enters the through hole 1215 of the accommodating cavity of the vertical magnetic connector under the elastic force of the spring 312. The front end of the first magnetic attraction column 311 of each set of vertical connectors is inserted into the radial groove 1121 on the plug pin of the first half shielding body through the through hole 1215 of the vertical magnetic connector accommodating cavity under the elastic force of the spring 312, so as to connect the first half shielding body 11 with the second half shielding body 12.

Each set of the transverse connectors 32 is composed of a pair of second magnetic poles 321, the second magnetic poles 321 are two stepped cylinders made of permanent magnetic material, such as neodymium iron boron, with different diameters, wherein the small diameter cylinder 3211 is in arc transition with the end surface, so that it smoothly enters the second connection hole 1212 of the second half shielding body and the first connection hole 1112 of the first half shielding body 11. The pair of second magnetic poles 321 is transversely disposed in the transverse magnetic connector receiving cavity 1214 of the second half shielding body, opposite ends of the two second magnetic poles 321 have the same magnetic poles, and the two second magnetic poles 321 are pushed by the magnetic pole repulsion force to make the front end of the small-diameter cylinder 3211 of the second magnetic pole enter the second connecting hole 1212 of the second half shielding body and the first connecting hole 1112 of the first half shielding body, so as to connect the first half shielding body 11 with the second half shielding body 12.

When the cigarette is evaluated blindly, the part of the evaluated cigarette with the brand information is arranged in the shielding body 10, two ends of the cigarette pass through the cigarette holes 13, the part of the cigarette without the brand information is exposed outside the shielding body, and the part of the brand information of the cigarette is completely shielded; after the blind evaluation is completed, first half shield 11 is separated from second half shield 12 by magnetic unlocking member 40.

In order to separate the first half shield body 11 and the second half shield body 12 after the cigarette evaluation is completed to take out the cigarette and prepare for the next evaluation, the present invention provides a magnetic unlocking member 40. The magnetic unlocking member 40 is respectively disposed on the first half shielding body 11 and the second half shielding body 12, and unlocks the first half shielding body 11 and the second half shielding body 12 by the repulsion of the same magnetic pole to separate them from each other. More specifically, as shown in fig. 4 and 5, the magnetic unlocking member 40 includes a first unlocking member 41 and a second unlocking member 42. The first unlocking member 41 includes a first unlocking seat 411 and a first magnetic attraction block 412. The first unlocking seat 411 is a rectangular block body, which is made of odorless non-magnetic materials such as metal, hard plastic, hard rubber, and the like, and two vertical through holes 4111 are arranged on the rectangular block body at intervals, and the two vertical through holes 4111 correspond to the positions of the two pins 112 of the first half shielding body. A first magnetic block 412 is installed in each of the two vertical through holes, and the first magnetic block 412 is made of a permanent magnetic material such as neodymium iron boron. The two first magnetic blocks 412 have the same magnetic poles as the opposite ends of the first magnetic poles 311 of the two vertical connectors, and are unlocked by separating the small-diameter cylinder 3111 of the first magnetic pole from the radial groove 1121 on the pin 112 through magnetic pole repulsion. The second unlocking member 42 includes a second unlocking seat 421 and four third magnetic attraction columns 422. The second unlocking seat 421 includes a bottom plate 4211 and four ear seats 4212 arranged at four opposite corners of the bottom plate, each ear seat 4212 is provided with a magnetic pillar hole 42121, and the position of the magnetic pillar hole 42121 corresponds to the second connecting hole 1212 on the second half shielding body. Each of the magnetic pole holes 42121 is internally installed with a third magnetic pole 422 made of magnetic material, and the magnetic poles of the opposite ends of the four third magnetic poles 422 and the two second magnetic poles 321 are the same, so that the small-diameter cylinder 3211 of the second magnetic pole is separated from the first connection hole 1112 of the first half shielding body 11 by magnetic pole repulsion force to unlock.

After the blind evaluation is finished, the first unlocking piece 41 is disposed on the upper portion of the first half shielding body 11, and the second unlocking piece 42 is mounted on the lower portion of the second half shielding body 12, so that the small-diameter cylinder 3111 of the first magnetic attraction column and the radial groove 1121 on the latch 112, and the small-diameter cylinder 3211 of the second magnetic attraction column and the first connection hole 1112 of the first half shielding body 11 are separated from each other to unlock.

Although the present invention has been described with reference to the above embodiments, the scope of the present invention is not limited thereto, and modifications, substitutions and the like of the above members are intended to fall within the scope of the claims of the present invention without departing from the spirit of the present invention.