CN109746892B - Auxiliary device for art evaluation and use method thereof - Google Patents
Auxiliary device for art evaluation and use method thereof Download PDFInfo
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- CN109746892B CN109746892B CN201910042215.2A CN201910042215A CN109746892B CN 109746892 B CN109746892 B CN 109746892B CN 201910042215 A CN201910042215 A CN 201910042215A CN 109746892 B CN109746892 B CN 109746892B
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Abstract
The invention discloses an art evaluation auxiliary device and a using method thereof, wherein the device comprises a clamping assembly for handheld movement and/or a marking assembly for handheld scoring, the clamping assembly comprises a clamping handle, a clamping connecting rod, a pull rod and a clamping claw, the pull rod is connected with a movable handle, the clamping claw comprises a fixed clamping claw and a movable clamping claw, the movable clamping claw is connected with the pull rod, a first reset piece is arranged on the clamping connecting rod, the marking assembly comprises an inverted U-shaped supporting frame, a pressing assembly and a numbering machine, the pressing assembly comprises a pressing handle and a pressing connecting rod, a second reset piece is arranged between the pressing connecting rod and the inverted U-shaped supporting frame, the pressing connecting rod is connected with a pressing rod of the numbering machine, and the inverted U-shaped supporting frame is connected with the numbering machine in a guiding way. According to the invention, an operator can finish the clamping work of the test paper in a standing state, so that the problems of high labor intensity and low working efficiency caused by the fact that the operator needs to squat down or bend down to pick up the test paper in the prior art are avoided.
Description
Technical Field
The invention relates to the technical field of teaching aids, in particular to a skill evaluation auxiliary device and a use method thereof.
Background
With the development of social economy, the development of the art special college entrance examination in China is rapid, and the art special college entrance examination is taken as a main way for selecting and pulling out the talents of the art, and plays an irreplaceable important role in the development of the art of China. Thousands of test papers can be provided for each year of skill examination, which is a very heavy task for a paper reader. Before huge test paper, a paper reader can bend over for a long time to review the test paper and squat on the ground to number the test paper, and work in such a state for a long time is easy to cause neck pain, shoulder pain and lumbago.
Therefore, a set of auxiliary art test products for helping teachers and volunteers to easily review and automatically number under the condition of normal standing is designed aiming at the problem study, so that the working efficiency of the teachers and the volunteers is improved, and a teaching tool for effectively assisting the teacher and the volunteers in review is provided.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art and provide a convenient and comfortable art evaluation auxiliary device and a using method thereof.
In order to achieve the above object, the present invention provides the following solutions: the invention provides a skill evaluation auxiliary device, which comprises a clamping assembly for handheld movement and/or a marking assembly for handheld scoring, wherein the clamping assembly comprises a clamping handle, a clamping connecting rod, a pull rod and a clamping claw, the clamping handle comprises a fixed handle and a movable handle which are hinged, the clamping connecting rod is of a hollow structure, the pull rod is arranged in the clamping connecting rod, one end of the pull rod is connected with the movable handle, the clamping claw comprises a fixed clamping claw and a movable clamping claw which are arranged up and down in a relative manner, the fixed clamping claw is fixedly connected with the clamping connecting rod, a movable guide groove is arranged on the side wall of the clamping connecting rod, one end of the movable clamping claw penetrates through the movable guide groove and is connected with the other end of the pull rod, a first reset piece for resetting the movable clamping claw is arranged on the clamping connecting rod, the marking assembly comprises an inverted U-shaped supporting frame, a pressing assembly and a numbering machine which are arranged on the inverted U-shaped supporting frame, the pressing assembly comprises a pressing handle and a pressing connecting rod which are sequentially connected, a second guide groove which is arranged between the pressing connecting rod and the top of the inverted U-shaped supporting frame and is provided with the inverted U-shaped supporting frame, and a second guide groove which is matched with the two guide grooves which are arranged on the two sides of the inverted U-shaped supporting frame, and the two guide grooves are connected with the two guide grooves which are matched with the two guide grooves.
Preferably, the movable handle is arranged below the fixed handle.
Preferably, the movable clamping claw comprises an L-shaped clamping arm, a guide sleeve and a clamping head, wherein the guide sleeve and the clamping head are respectively arranged at two ends of the L-shaped clamping arm, the guide sleeve is of an annular or semi-annular structure, a second guide groove is formed in the guide sleeve, the inner wall of the second guide groove is attached to the outer wall of the clamping connecting rod, the first resetting piece is arranged on the L-shaped clamping arm and is connected or hinged to the support arm fixing angle of the guide sleeve, and the clamping head is connected or hinged to the L-shaped clamping arm fixing angle.
Preferably, the clamping head comprises a clamping seat and a clamping block, the clamping seat is of an inverted U-shaped structure, the clamping seat is connected with the L-shaped clamping arm at a fixed angle or is hinged to the L-shaped clamping arm, and the clamping block is arranged in an inner cavity of the inverted U-shaped structure.
Preferably, the first restoring member is disposed on an outer side wall or an inner side wall of the clamping connecting rod, when the first restoring member is disposed on the outer side wall of the clamping connecting rod, one end of the first restoring member is connected with the outer side wall of the clamping connecting rod, the other end of the first restoring member is connected with the other end of the movable clamping jaw, when the first restoring member is disposed inside the clamping connecting rod, the first restoring member is sleeved on the outer side of the pull rod, the lower end of the first restoring member is connected with the inner side wall of the movable clamping jaw, and the upper end of the first restoring member is connected with the pull rod.
Preferably, the first restoring member is a spring.
Preferably, the clamping connecting rod is of a detachable structure, the clamping connecting rod comprises a first connecting sleeve, a first connecting rod and a second connecting rod, two ends of the first connecting sleeve are respectively clamped, connected with the first connecting rod and the second connecting rod through bolts or in threaded connection, the first connecting rod is connected with the fixed handle, and the second connecting rod is connected with the fixed clamping claw; preferably, the second connecting rod or the first connecting sleeve is provided with the movable guide groove.
Preferably, the inverted U-shaped support frame is further provided with a roller assembly, and the roller assembly comprises a rotating shaft and a left roller and a right roller which are respectively arranged on two side walls of the inverted U-shaped support frame through the rotating shaft.
Preferably, the second restoring member is a spring.
The invention provides a use method of the skill evaluation auxiliary device, which comprises the following steps:
an operator holds a fixed handle in a clamping assembly to place a test paper to be clamped on the fixed clamping jaw, then holds the fixed handle and a movable handle in the clamping assembly by the operator, and dials the movable handle towards the direction of the fixed handle, the movable handle drives a pull rod to move downwards, the pull rod drives the movable clamping jaw to move downwards, the movable clamping jaw is close to the fixed clamping jaw, the movable clamping jaw and the fixed clamping jaw clamp the test paper to be clamped, finally the operator releases the movable handle, and a first reset piece in the clamping assembly drives the pull rod to reset; completing the clamping work of the test paper to be clamped;
an operator holds a pressing handle in a marking assembly, a numbering machine in the marking assembly is placed on a test paper to be marked, then the operator applies pressure to the pressing handle and transmits the pressure to a pressing rod of the numbering machine through a pressing connecting rod in the marking assembly, the numbering machine moves downwards along a guide groove on an inverted U-shaped support frame in the marking assembly to finish marking work, finally the operator removes the pressure applied to the pressing handle, a second reset piece in the marking assembly drives the pressing connecting rod to reset, and meanwhile the numbering machine finishes code jumping work; and finishing the marking work of the test paper to be marked.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the skill evaluation paper auxiliary device, the clamping handles and the clamping connecting rods which are connected are arranged on the clamping claws, so that an operator can finish the clamping work of a test paper in a standing state, the problems of high labor intensity and low working efficiency caused by the fact that the operator needs to squat down or bend down to pick up the test paper in the prior art are avoided, and further, the movable clamping claws can realize mechanical reset by connecting the clamping connecting rods with the movable clamping claws through the first reset piece, and the problem of low using performance caused by the fact that the movable clamping claws cannot reset by themselves in the prior art is avoided; furthermore, adopt the numbering machine respectively with fall U-shaped support frame direction connection, press connecting rod fixed connection's mode for operating personnel can accomplish the marking work to the examination paper under standing state, avoided among the prior art operating personnel need squat down or bend down and carry out the examination paper mark and lead to intensity of labour big, problem that work efficiency is low, further, adopt and press the mode that is provided with the second piece that resets between connecting rod and the support of falling U-shaped, make the numbering machine accomplish after once marking work and can realize mechanical reset, avoided among the prior art numbering machine can not reset by oneself and lead to the problem that the performance is low.
2. The technical evaluation auxiliary device provided by the invention adopts the mode that the clamping connecting rod is arranged in a detachable structure, so that the volume of the clamping assembly is reduced before assembly, the problem of inconvenient use caused by large volume is avoided, and further, the problem that the first connecting rod is easy to bend and deform due to direct stress caused by the fact that the movable guide groove is directly arranged on the first connecting rod is avoided by adopting the mode that the movable guide groove is arranged on the first connecting sleeve or the second connecting rod, the structural strength of the clamping connecting rod is improved, and the service life of the clamping assembly is further prolonged.
3. According to the skill evaluation auxiliary device provided by the invention, the roller assemblies are arranged on the inverted U-shaped support frame, so that operators can flexibly push the marking assemblies to move, the problem of inconvenience in use caused by the fact that the operators directly carry the marking assemblies by hand is avoided, and the use convenience of the marking assemblies is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a clamping assembly according to the present invention;
FIG. 2 is a cross-sectional view (one) of FIG. 1;
FIG. 3 is a cross-sectional view (II) of FIG. 1;
FIG. 4 is a schematic view of the overall structure of the marking assembly of the present invention;
FIG. 5 is a cross-sectional view of FIG. 4;
FIG. 6 is a partial view of FIG. 4;
the device comprises a 1-fixed handle, a 2-movable handle, a 3-pull rod, a 4-fixed clamping claw, a 5-limiting piece, a 6-movable guide groove, a 7-first resetting piece, an 8-inverted U-shaped supporting frame, a 9-pressing handle, a 10-pressing connecting rod, a 12-second resetting piece, a 13-first guide groove, a 14-numbering machine, a 15-guide block, a 16-L-shaped clamping arm, a 17-guide sleeve, a 18-second guide groove, a 19-clamping seat, a 20-clamping block, a 21-first connecting sleeve, a 22-first connecting rod, a 23-second connecting rod, a 24-rotating shaft, a 25-left roller and a 26-right roller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to overcome the defects and shortcomings of the prior art and provide a convenient and comfortable art evaluation auxiliary device and a using method thereof.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-6, the invention provides a skill evaluation auxiliary device, which comprises a clamping assembly for handheld movement and/or a marking assembly for handheld scoring, wherein the clamping assembly comprises a clamping handle, a clamping connecting rod, a pull rod 3 and a clamping claw, the clamping handle comprises a fixed handle 1 and a movable handle 2 which are hinged, the clamping connecting rod is of a hollow structure, the pull rod 3 is arranged in the clamping connecting rod, one end of the pull rod 3 is connected with the movable handle 2, the clamping claw comprises a fixed clamping claw 4 and a movable clamping claw which are arranged up and down oppositely, the fixed clamping claw 4 is fixedly connected with the clamping connecting rod, a movable guide groove 6 is arranged on the side wall of the clamping connecting rod, one end of the movable clamping claw penetrates through the movable guide groove 6 to be connected with the other end of the pull rod 3, the marking assembly comprises an inverted U-shaped support frame 8, a pressing assembly and a numbering machine 14 arranged on the inverted U-shaped support frame 8, the pressing assembly comprises a pressing handle 9 and a pressing connecting rod 10 which are sequentially connected, a first guide groove 14 is arranged between the pressing connecting rod 10 and the top of the inverted U-shaped support frame 8 and is provided with a second guide groove 15 which is matched with a first guide groove 14 and two opposite side walls 15 of the inverted U-shaped support frame, and two guide grooves 15 are arranged on two opposite sides of the guide groove 13 are connected with the two guide grooves 15.
The clamping component and the marking component can exist in the auxiliary device independently or can exist in the auxiliary device in a complete set at the same time; the slotting length of the movable guide groove 6 is the movable travel of one end of the movable clamping claw; the numbering machine 14 is a product existing in the prior art, and in the invention, a compression bar of the numbering machine 14 is connected with the compression connecting rod 10, and two side walls of the numbering machine 14 are respectively connected with the first guide groove 13 in a matched manner through the guide blocks 15; the maximum length of the clamping component for hand-held movement and the marking component for hand-held scoring is about 1000mm, the clamping component is preferably 1020mm, and the marking component is preferably 1100mm; in addition, the clamping handle and the clamping connecting rod which are connected are arranged on the clamping claw, so that an operator can finish the clamping work of the test paper in a standing state, the problems of high labor intensity and low working efficiency caused by the fact that the operator needs to squat down or bend down to pick up the test paper in the prior art are avoided, and further, the movable clamping claw can realize mechanical reset by adopting the mode that the clamping connecting rod is connected with the movable clamping claw through the first reset piece 7, and the problem of low using performance caused by the fact that the movable clamping claw cannot reset by itself in the prior art is avoided; furthermore, the numbering machine 14 is respectively connected with the inverted U-shaped support frame 8 in a guiding manner and is fixedly connected with the pressing connection rod 10, so that an operator can finish marking work on test paper in a standing state, the problems of high labor intensity and low working efficiency caused by the fact that the operator needs to squat down or bend down to mark the test paper in the prior art are avoided, and further, the numbering machine 14 can realize mechanical reset after finishing one-time marking work by adopting the manner that the second reset piece 12 is arranged between the pressing connection rod 10 and the inverted U-shaped support frame 8, and the problem of low using performance caused by the fact that the numbering machine 14 cannot reset by itself in the prior art is avoided.
In order to facilitate the examination paper picking-up work of operators, the movable handle 2 is arranged below the fixed handle 1, so that the hand can exert force conveniently; wherein, the movable handle 2 is hinged with the fixed handle 1, and further, the movable handle 2 and the fixed handle 1 are provided with springs for resetting, such as the structure of the resettable scissors in the prior art; or a torsion spring is arranged on the hinge shaft of the movable handle 2 and the fixed handle 1.
In order to facilitate the up-and-down movement of the movable clamping claw and the effective grabbing work of the test paper, the movable clamping claw comprises an L-shaped clamping arm 16, a guide sleeve 17 and a clamping head, wherein the guide sleeve 17 and the clamping head are respectively arranged at two ends of the L-shaped clamping arm 16, the guide sleeve 17 is of an annular or semi-annular structure, a second guide groove 18 is formed in the guide sleeve 17, the inner wall of the second guide groove 18 is attached to the outer wall of the clamping connecting rod, the first reset piece 7 is fixedly connected or hinged with a support arm provided with the guide sleeve 17 on the L-shaped clamping arm 16, and the clamping head is fixedly connected or hinged with the L-shaped clamping arm 16.
Further, the clamping head comprises a clamping seat 19 and a clamping block 20, wherein the clamping seat 19 is of an inverted U-shaped structure, the clamping seat 19 is fixedly connected or hinged with the L-shaped clamping arm 16 at a fixed angle, and the clamping block 20 is arranged in an inner cavity of the inverted U-shaped structure, wherein the clamping block 20 is preferably made of soft materials such as sponge, so that the problem of damage to test paper in the clamping process is avoided.
In order to enrich the installation form of the first reset piece 7, in the invention, the first reset piece 7 is arranged on the outer side wall or the inner side wall of the clamping connecting rod, when the first reset piece 7 is arranged on the outer side wall of the clamping connecting rod, one end of the first reset piece 7 is connected with the outer side wall of the clamping connecting rod, the other end of the first reset piece 7 is connected with the other end of the movable clamping claw, when the first reset piece 7 is arranged in the clamping connecting rod, the first reset piece 7 is sleeved on the outer side of the pull rod 3, the lower end of the first reset piece 7 is connected with the inner side wall of the movable clamping claw, the upper end of the first reset piece 7 is connected with the pull rod 3, wherein, optionally, the upper end of the first reset piece 7 is connected with a limiting piece 5 on the pull rod 3, the limiting piece 5 is fixedly connected with the pull rod 3, and a gap exists between the limiting piece 5 and the inner wall of the clamping connecting rod.
The first restoring member 7 in the present invention is a spring.
The clamping connecting rod is of a detachable structure, the clamping connecting rod comprises a first connecting sleeve 21, a first connecting rod 22 and a second connecting rod 23, two ends of the first connecting sleeve 21 are respectively clamped, connected with the first connecting rod 22 and the second connecting rod 23 through bolts or threads, the first connecting rod 22 is connected with the fixed handle 1, and the second connecting rod 23 is connected with the fixed clamping claw 4; preferably, the second connecting rod 23 or the first connecting sleeve 21 is provided with a movable guide groove 6; that is, the clamping connecting rod is arranged in a detachable structure, so that the volume of the clamping assembly is reduced before assembly, the problem of inconvenient use caused by large volume is avoided, and further, the movable guide groove 6 is arranged on the first connecting sleeve 21 or the second connecting rod 23, the problem that the movable guide groove 6 is directly arranged on the first connecting rod 22 to cause the first connecting rod 22 to be directly stressed to easily generate bending deformation is avoided, the structural strength of the clamping connecting rod is improved, and the service life of the clamping assembly is prolonged.
The inverted U-shaped support frame 8 is also provided with a roller assembly, and the roller assembly comprises a rotating shaft 24, and a left roller 25 and a right roller 26 which are respectively arranged on two side walls of the inverted U-shaped support frame 8 through the rotating shaft 24; the mode that is provided with the roller component on the inverted U-shaped support frame 8 is adopted for operating personnel can promote the marking component motion in a flexible way, has avoided the direct portable inconvenient problem of marking component of operating personnel lead to, has further improved marking component's use convenience.
The second restoring member 12 is a spring in the present invention.
The invention provides a use method of the skill evaluation auxiliary device, which comprises the following steps:
an operator holds a fixed handle 1 in a clamping assembly, a test paper to be clamped is placed on a fixed clamping claw 4, then the operator holds the fixed handle 1 and a movable handle 2 in the clamping assembly, the movable handle 2 is shifted towards the direction of the fixed handle 1, the movable handle 2 drives a pull rod 3 to move downwards, the pull rod 3 drives the movable clamping claw to move downwards, the movable clamping claw is close to the fixed clamping claw 4, the movable clamping claw and the fixed clamping claw 4 clamp the test paper to be clamped, finally the operator releases the movable handle 2, and a first reset piece 7 in the clamping assembly drives the pull rod 3 to reset; completing the clamping work of the test paper to be clamped;
an operator holds the pressing handle 9 in the marking assembly, places the numbering machine 14 in the marking assembly on a test paper to be marked, then applies pressure to the pressing handle 9 by the operator, and transmits the pressure to the pressing rod of the numbering machine 14 through the pressing connecting rod 10 in the marking assembly, the numbering machine 14 moves downwards along the guide groove on the inverted U-shaped support frame 8 in the marking assembly to finish marking work, finally the operator removes the pressure applied to the pressing handle 9, the second reset piece 12 in the marking assembly drives the pressing connecting rod 10 to reset, and meanwhile the numbering machine 14 finishes code jumping work; and finishing the marking work of the test paper to be marked.
The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (10)
1. The utility model provides an art examination and evaluation auxiliary device which is characterized in that, including the clamping component that is used for handheld removal and the mark subassembly that is used for handheld marking, the clamping component includes grip handle, grip connecting rod, pull rod and grip claw, the grip handle includes looks articulated fixed handle and movable handle, the grip connecting rod is hollow structure, the pull rod is arranged in the grip connecting rod inside, the one end of pull rod with movable handle is connected, the grip claw includes fixed grip claw and the movable grip claw that upper and lower relative set up, fixed grip claw with grip connecting rod fixed connection, be provided with the movable guide way on the lateral wall of grip connecting rod, movable grip claw's one end passes movable guide way is connected with the other end of pull rod, be provided with on the grip connecting rod and supply movable grip claw reset first reset piece, the mark subassembly includes the support frame of falling U-shaped and sets up pressing component and numbering machine on the support frame of falling U-shaped, pressing component including the pressing handle and the pressing connecting rod that connect gradually, pressing connecting rod and falling U-shaped support frame top are provided with two opposite side guide ways of the support frame of falling U-shaped reset piece, two guide way are provided with two guide ways are all connected with the corresponding connection groove on the support frame, two lateral wall of falling U-shaped opposite set up guide way and the numbering machine;
an operator holds a fixed handle in a clamping assembly to place a test paper to be clamped on the fixed clamping jaw, then holds the fixed handle and a movable handle in the clamping assembly by the operator, and dials the movable handle towards the direction of the fixed handle, the movable handle drives a pull rod to move downwards, the pull rod drives the movable clamping jaw to move downwards, the movable clamping jaw is close to the fixed clamping jaw, the movable clamping jaw and the fixed clamping jaw clamp the test paper to be clamped, finally the operator releases the movable handle, and a first reset piece in the clamping assembly drives the pull rod to reset; completing the clamping work of the test paper to be clamped;
an operator holds a pressing handle in a marking assembly, a numbering machine in the marking assembly is placed on a test paper to be marked, then the operator applies pressure to the pressing handle and transmits the pressure to a pressing rod of the numbering machine through a pressing connecting rod in the marking assembly, the numbering machine moves downwards along a guide groove on an inverted U-shaped support frame in the marking assembly to finish marking work, finally the operator removes the pressure applied to the pressing handle, a second reset piece in the marking assembly drives the pressing connecting rod to reset, and meanwhile the numbering machine finishes code jumping work; and finishing the marking work of the test paper to be marked.
2. The process control roll assist device as set forth in claim 1 wherein said movable handle is disposed below said fixed handle.
3. The art evaluation and recording aid according to claim 1 or 2, wherein the movable clamping claw comprises an L-shaped clamping arm, a guide sleeve and a clamping head, wherein the guide sleeve and the clamping head are respectively arranged at two ends of the L-shaped clamping arm, the guide sleeve is of an annular or semi-annular structure, a second guide groove is formed in the guide sleeve, the inner wall of the second guide groove is attached to the outer wall of the clamping connecting rod, the first reset piece is connected or hinged with the support arm of the L-shaped clamping arm, and the clamping head is connected or hinged with the L-shaped clamping arm at a fixed angle.
4. A process evaluation roll aid according to claim 3, wherein the clamping head comprises a clamping seat and a clamping block, the clamping seat is of an inverted U-shaped structure, the clamping seat is fixedly connected or hinged with the L-shaped clamping arm at a fixed angle, and the clamping block is arranged in an inner cavity of the inverted U-shaped structure.
5. The skill evaluation auxiliary device according to claim 1, wherein the first reset piece is arranged on an outer side wall or an inner side wall of the clamping connecting rod, when the first reset piece is arranged on the outer side wall of the clamping connecting rod, one end of the first reset piece is connected with the outer side wall of the clamping connecting rod, the other end of the first reset piece is connected with the other end of the movable clamping jaw, when the first reset piece is arranged inside the clamping connecting rod, the first reset piece is sleeved on the outer side of the pull rod, the lower end of the first reset piece is connected with the inner side wall of the movable clamping jaw, and the upper end of the first reset piece is connected with the pull rod.
6. The process control instrument of claim 1 or 5, wherein the first return member is a spring.
7. The apparatus according to claim 1 or 5, wherein the clamping connection rod is of a detachable structure, the clamping connection rod comprises a first connection sleeve, a first connection rod and a second connection rod, two ends of the first connection sleeve are respectively clamped, bolted or screwed with the first connection rod and the second connection rod, the first connection rod is connected with the fixed handle, and the second connection rod is connected with the fixed clamping claw.
8. The apparatus according to claim 7, wherein the second connecting rod or the first connecting sleeve is provided with the movable guide groove.
9. The process evaluation roll assistor of claim 1, wherein the inverted U-shaped support frame is further provided with a roller assembly, the roller assembly comprising a rotating shaft, and a left roller and a right roller respectively arranged on two side walls of the inverted U-shaped support frame through the rotating shaft.
10. A process test paper dispenser according to claim 1 or 9, wherein the second return member is a spring.
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| CN201910042215.2A CN109746892B (en) | 2019-01-17 | 2019-01-17 | Auxiliary device for art evaluation and use method thereof |
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| CN201910042215.2A CN109746892B (en) | 2019-01-17 | 2019-01-17 | Auxiliary device for art evaluation and use method thereof |
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| CN109746892A (en) | 2019-05-14 |
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