CN111489613B

CN111489613B - Education and teaching prevents thoughtlessly using individual teaching device of teacher

Info

Publication number: CN111489613B
Application number: CN202010335297.2A
Authority: CN
Inventors: 王宇; 马瑛东; 张冰
Original assignee: Henan Institute of Technology
Current assignee: Henan Institute of Technology
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2022-01-28
Anticipated expiration: 2040-04-24
Also published as: CN111489613A

Abstract

The invention provides a mixed-use-prevention teacher personal teaching device for education and teaching, which comprises a main body, a contact element, a moving rod, a bottom groove, a turnover element and a stress element, wherein the contact element is arranged on the main body; the main body is of a cylindrical structure, and the interior of the main body is of a hollow structure; the outer side of the contact element is made of silica gel, and the insertion plate on the inner side of the top end of the contact element is inserted into the mounting groove at the bottom of the moving groove; the bottom end of the moving rod is inserted into the top end of the main body, and the top ends of the moving plates at the top ends of the moving rods are connected through a connecting shaft; the bottom groove comprises a clamping block; the main part is used for direct and teacher hand contact for the teacher can directly hold this device and use, and the main part be hollow structure, be in order to make when using this device teaching, can temporarily save the chalk in the inside of main part, make the bottom plate can block it, thereby make the teacher when needs use the chalk, the use of taking that can be convenient.

Description

Education and teaching prevents thoughtlessly using individual teaching device of teacher

Technical Field

The invention belongs to the technical field of teaching devices, and particularly relates to a mixed-use-prevention teacher personal teaching device for education and teaching.

Background

When carrying out high-efficient education, the teacher can use individual teaching device to assist the teaching usually to explain more fast, the messenger teaching religion pole that wherein uses most often.

For example, application No.: CN201810752327.2 relates to a teaching rod for college teaching, which comprises a shell, a telescopic rod, a laser lamp, infrared rays, a laser lamp button, a USB plug, an infrared ray control and a recording control, wherein the telescopic rod is arranged at the rear end of the shell, the laser lamp is arranged at the left end of the shell, the infrared rays are arranged at the lower end of the laser lamp, the laser lamp button is arranged at the front end of the shell, the USB plug is arranged at the upper end of the laser lamp button, and the infrared ray control and the recording control are sequentially arranged at the right end of the USB plug; the teaching rod is reasonable in design and strong in practicability, comprises the telescopic rod, the length of the telescopic rod can be adjusted at will, so that teachers with different heights can conveniently use the teaching rod, and the telescopic rod can be folded and placed in the teaching rod when not used, so that the teaching rod is convenient to use; the loudspeaker is arranged, so that foreign language sounding teaching can be performed, and the workload of repeated teaching of teachers is relieved; the arranged laser lamp can meet the requirements in the aspect of laser indication; the USB plug is arranged, so that charging is convenient; the hidden pen is additionally arranged inside the shell and can be taken out for use, so that writing records of teachers are met.

Based on prior art discovery, current teaching rod for education and teaching is when using, and the structure is comparatively single, can't be supplementary storage chalk when using, can't be getting more convenient when taking the use chalk, and current teaching rod for education and teaching is when using, and the teaching rod function is comparatively single, and when the blackboard is great, can't assist the teacher to use the chalk to write, can't write at higher position writing board.

Disclosure of Invention

In order to solve the technical problems, the invention provides a mixed-use-prevention teacher personal teaching device for education and teaching, which aims to solve the problems that when an existing teaching rod for education and teaching is used, the structure is single, chalk cannot be stored in an auxiliary mode when the existing teaching rod is used, the existing teaching rod for education and teaching cannot be used conveniently when the existing teaching rod is taken and used, the function of the existing teaching rod is single, when a blackboard is large, a teacher cannot be assisted to use chalk for writing, and blackboard writing cannot be performed at a high position.

The invention relates to a purpose and an effect of a mixed teacher-proof personal teaching device for education and teaching, which are achieved by the following specific technical means:

a mixed-use-preventing teacher personal teaching device for education and teaching comprises a main body, a contact element, a moving rod, a bottom groove, a turnover element and a stress element; the main body is of a cylindrical structure, and the interior of the main body is of a hollow structure; the outer side of the contact element is made of silica gel, and the insertion plate on the inner side of the top end of the contact element is inserted into the mounting groove at the bottom of the moving groove; the bottom end of the moving rod is inserted into the top end of the main body, and the top ends of the moving plates at the top ends of the moving rods are connected through a connecting shaft; the bottom groove comprises a clamping block; the bottom groove is of a T-shaped structure, and a clamping block is arranged in the bottom groove; the fixture block is of a T-shaped structure, and the inner end of the fixture block is connected with the inside of the bottom groove through a spring; the outer end of the clamping block is inserted into the moving groove; the bottom grooves are formed in two sides of the bottom end of the movable rod; the overturning piece is arranged between the top ends of the moving plates, and the middle position of the overturning piece is penetrated through by a connecting shaft at the top end of the moving plate; the stress piece is installed on the top end of the turnover piece, and the bottom end of the stress piece is connected with the thread head of the turnover piece through threads.

Furthermore, the main body comprises a moving groove, a bottom plate and a moving piece; moving grooves are formed in two sides of the main body, the moving grooves are of rectangular structures, and an installation groove is formed in the middle of the bottom of each moving groove; the top end of the moving groove is of a wider rectangular structure; the bottom of the main body is provided with a bottom plate through a connecting shaft, and the bottom plate is of a circular plate-shaped structure; the side edge of the top end of the bottom plate is provided with a mounting groove with a middle raised cylindrical structure, and a moving part is mounted in the mounting groove through a spring; the moving piece is of a cylindrical structure with a convex middle part, and the top end of the moving piece is of an arc-shaped structure; the bottom plate is a turnover sealing structure.

Furthermore, the contact piece comprises a connecting plate and an inserting plate; the contact element is of a cylindrical structure, and a groove of an arc structure is arranged on the outer side of the contact element; a connecting plate with a T-shaped plate structure is arranged on the inner side of the top end of the contact element, and an insertion plate with a rectangular structure is arranged on the inner side of the connecting plate; the contact piece is a pluggable detachable structure.

Furthermore, the moving rod comprises a slot, a side slot and a moving plate; the moving rod is of a cylindrical structure, and the top end of the moving rod is provided with a slot of the cylindrical structure; side grooves are arranged on two sides of the slot and are of T-shaped structures; the bottom end of the movable plate is embedded in the side groove, and the bottom end of the movable plate is of a T-shaped plate structure; the moving plate is of a height-adjustable structure.

Further, the turnover piece comprises an inner groove; the overturning part is of a cylindrical structure, and the top end of the overturning part is of a threaded head structure; an inner groove is formed in the middle of the bottom end of the turnover piece, and magnets are embedded in two sides of the inner part of the inner groove; two sides of the outer end of the inner groove are of inclined structures; the turnover piece is of a turnover adjusting structure.

Further, the force-bearing part comprises a limiting part; the stress piece is of a cylindrical structure, and the interior of the stress piece is of a hollow structure; the top end edge position of the stress piece is an inclined structure, and the bottom end of the stress piece is provided with a thread; a plurality of limiting pieces are arranged inside the top end of the stress piece, and the limiting pieces are made of spring plates; the top end of the limiting piece is of an inclined structure, a groove is formed in the outer side of the bottom of the limiting piece, and a plurality of wedge-shaped blocks are arranged at the bottom of the outer side of the limiting piece; the limiting part is a reversible limiting structure.

Compared with the prior art, the invention has the following beneficial effects:

in the device, a main body and a stress piece are arranged, the main body is used for being directly contacted with the hands of a teacher so that the teacher can directly hold the device for use, the main body is of a hollow structure, so that the chalk can be temporarily stored in the main body when the device is used for teaching, the bottom plate can block the chalk, the teacher can conveniently take the chalk for use when needing to use the chalk, the moving grooves on two sides of the main body are used for enabling the clamping blocks to move in the main body, the clamping blocks can be manually stepped when the device needs to be stretched, the moving rod can conveniently stretch in the main body, the top end of the moving groove is of a wider rectangular structure, so that after the moving rod extends, the clamping blocks can receive the power of the spring to move outwards so as to fix the moving rod, the movable rod can conveniently support the chalk for use, the base plate is arranged at the bottom of the main body through the rotating shaft and is used for sealing the bottom of the main body, so that the chalk can be blocked by the base plate when the chalk is stored in the base plate, the chalk cannot fall off, the movable piece in the base plate is inserted into the main body through receiving the power of the spring, and the chalk can be accurately and fixedly blocked after the base plate is closed;

the top end of the stress piece is of an inclined structure so that when the chalk is inserted, the stress piece can be guided to enable the chalk to be rapidly installed and used, the bottom end of the stress piece is internally provided with a thread so that after the chalk is inserted, the stress piece can be rotated manually to enable a thread head to move in the stress piece so as to push the chalk outwards, the chalk can be conveniently used by adjusting the length, the limiting piece can be used for fixing the chalk after the chalk is inserted into the stress piece, the chalk can be conveniently and fixedly used, and the top end of the limiting piece is of an inclined structure, the utility model provides a when making the chalk insert, can lead, and the locating part is the spring plate material, turn over in order to can the atress, make the chalk insert after, can fix it by automatic atress, and the wedge in the locating part outside is used for direct and chalk contact, thereby it is effectual fixed with its extrusion, thereby solved when using, the structure is comparatively single, can't supplementary storage chalk when using, can't be more convenient when getting the chalk, and current teaching rod for education and teaching is when using, the teaching rod function is comparatively single, when the blackboard is great, can't assist the teacher to use the chalk to write, can't be at the problem of higher position writing on the blackboard.

Drawings

Fig. 1 is a schematic view of the main body and a partial enlarged structure of the present invention.

Fig. 2 is a partial cross-sectional view and a partial enlarged structure of the main body of the present invention.

Fig. 3 is a schematic diagram of a part a enlarged structure of the invention from fig. 2.

Fig. 4 is a schematic perspective view of the contact of the present invention.

Fig. 5 is a partial cross-sectional view of the tip of the travel bar of the present invention.

Fig. 6 is a partial sectional view of the bottom end of the travel bar of the present invention.

Fig. 7 is a perspective view of the flip of the present invention.

Fig. 8 is a partial sectional structural schematic view of the force-receiving member of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a main body; 101. a moving groove; 102. a base plate; 103. a moving member; 2. a contact member; 201. a connecting plate; 202. an insert plate; 3. a travel bar; 301. a slot; 302. a side groove; 303. moving the plate; 4. a bottom groove; 401. a clamping block; 5. a turnover piece; 501. an inner tank; 6. a force-receiving member; 601. and a limiting member.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the invention provides a mixed-use-proof teacher personal teaching device for education and teaching, which comprises: the device comprises a main body 1, a contact element 2, a moving rod 3, a bottom groove 4, a turnover element 5 and a stress element 6; the main body 1 is of a cylindrical structure, the interior of the main body 1 is of a hollow structure, the top end of the moving groove 101 is of a wider rectangular structure, so that after the moving rod 3 extends, the fixture block 401 can receive the power of the spring to move outwards, so that the moving rod 3 is fixed, the moving rod 3 can conveniently support chalk for use, the bottom plate 102 is arranged at the bottom of the main body 1 through a rotating shaft and can seal the bottom of the main body 1, so that the chalk can be blocked by the bottom plate 102 when stored in the chalk, the chalk cannot fall off, the moving piece 103 in the bottom plate 102 is inserted into the interior of the main body 1 to receive the power of the spring, and the chalk can be accurately and fixedly blocked after the bottom plate 102 is closed; the outer side of the contact element 2 is made of silica gel, the inserting plate 202 on the inner side of the top end of the contact element 2 is inserted into the mounting groove at the bottom of the moving groove 101, the connecting plate 201 plays a role in connecting and mounting the contact element 2, and the outer side of the connecting plate 201 can be marked so as to record personal names, so that mixed use is avoided, and the inserting plate 202 is used for being inserted into the mounting groove at the bottom of the moving groove 101 so that the contact element 2 can be freely detached, mounted and used; the bottom end of the moving rod 3 is inserted into the top end of the main body 1, the top ends of the moving plates 303 at the top ends of the moving rod 3 are connected through a connecting shaft, the slots 301 are used for inserting two ends of the turnover piece 5, so that when the turnover piece 5 is turned over to different positions, the bottom end of the turnover piece 5 can be inserted into the slots 301, the turnover piece 5 can be conveniently supported and fixed for use, the side slots 302 are used for enabling the moving plates 303 to move in the slots, the moving plates 303 can adjust the height of the turnover piece 5, and the bottom end of the turnover piece 5 can be inserted into the slots 301; the bottom groove 4 comprises a fixture block 401; the bottom groove 4 is of a T-shaped structure, and a fixture block 401 is arranged in the bottom groove 4; the fixture block 401 is of a T-shaped structure, and the inner end of the fixture block 401 is connected with the inside of the bottom groove 4 through a spring; the outer end of the latch 401 is inserted inside the moving groove 101; the bottom grooves 4 are arranged at two sides of the bottom end of the movable rod 3; the turnover piece 5 is arranged between the top ends of the moving plates 303, and the middle position of the turnover piece 5 is penetrated through by a connecting shaft at the top ends of the moving plates 303; the stress piece 6 is installed on the top end of the turnover piece 5, the bottom end of the stress piece 6 is connected with the thread head of the turnover piece 5 through threads, the limiting piece 601 can fix the chalk after the chalk is inserted into the stress piece 6, the chalk can be conveniently and fixedly used, the top end of the limiting piece 601 is of an inclined structure, the chalk can be guided when being inserted, the limiting piece 601 is made of a spring plate material and can be overturned under stress, the chalk can be automatically stressed and fixed after being inserted, and the wedge block on the outer side of the limiting piece 601 is used for being directly contacted with the chalk, so that the chalk is effectively extruded and fixed.

Wherein, the main body 1 comprises a moving groove 101, a bottom plate 102 and a moving part 103; two sides of the main body 1 are provided with moving grooves 101, the moving grooves 101 are rectangular structures, and the middle position of the bottom of the moving grooves 101 is provided with a mounting groove; the top end of the movable groove 101 is of a wider rectangular structure; the bottom of the main body 1 is provided with a bottom plate 102 through a connecting shaft, and the bottom plate 102 is of a circular plate-shaped structure; a mounting groove with a middle raised cylindrical structure is formed in the side edge of the top end of the bottom plate 102, and a moving part 103 is mounted in the mounting groove through a spring; the moving part 103 is of a cylindrical structure with a convex middle part, and the top end of the moving part 103 is of an arc-shaped structure; bottom plate 102 is reversible seal structure, main part 1 here is used for direct and teacher's hand contact, make the teacher can directly hold this device and use, and main part 1 be hollow structure, be in order to make when using this device teaching, can temporarily store the chalk in the inside of main part 1, make bottom plate 102 can block it, thereby make the teacher when needs use the chalk, can be convenient the use of taking, and the shifting chute 101 of main part 1 both sides is used for making fixture block 401 can be in its inside removal, make this device when needs are flexible, can step on empty fixture block 401 through the manpower, thereby make movable rod 3 can be convenient flexible in the inside of main part 1.

The contact 2 comprises a connecting plate 201, an inserting plate 202; the contact element 2 is of a cylindrical structure, and a groove of an arc structure is arranged on the outer side of the contact element 2; a connecting plate 201 with a T-shaped plate structure is arranged on the inner side of the top end of the contact element 2, and an insertion plate 202 with a rectangular structure is arranged on the inner side of the connecting plate 201; the contact 2 is a pluggable detachable structure, and the contact 2 is arranged on the side edge of the main body 1, so that when the device is used for operation, the contact 2 can be in contact with a hand tiger's mouth, and the hand can be protected.

Wherein, the moving rod 3 comprises a slot 301, a side slot 302 and a moving plate 303; the movable rod 3 is of a cylindrical structure, and the top end of the movable rod 3 is provided with a slot 301 of the cylindrical structure; side grooves 302 are arranged on two sides of the slot 301, and the side grooves 302 are of T-shaped structures; the bottom end of the moving plate 303 is embedded in the side groove 302, and the bottom end of the moving plate 303 is of a T-shaped plate structure; the moving plate 303 is a height adjustable structure, and the moving rod 3 is installed at the top end of the main body 1, so that the moving rod 3 can be freely moved for use.

Wherein, the turnover part 5 comprises an inner groove 501; the overturning part 5 is of a cylindrical structure, and the top end of the overturning part 5 is of a threaded head structure; an inner groove 501 is formed in the middle of the bottom end of the turnover piece 5, and magnets are embedded in two sides of the inner groove 501; the two sides of the outer end of the inner groove 501 are of an inclined structure; the turning piece 5 is of a turning adjusting structure, the turning piece 5 is used for turning through the connecting shaft, when the magnetic absorption explaining plate needs to be fixed, the turnover part 5 can be manually controlled to turn over, so that one end of the turnover part 5 with the thread head and the stress part 6 faces downwards, the inner groove 501 faces upwards, and then controls the turnover member 5 and the moving plate 303 to move downwards, so that one end of the turnover member 5 with the screw head and the force receiving member 6 can be inserted into the inside of the insertion groove 301, so that the turnover member 5 can be fixed in a vertical state, then use this device, the both ends of control inside groove 501 are inserted the both sides of inhaling the explanation board of magnetism to convenient inhale the explanation version with magnetism and take off, the both sides top of inside groove 501 is slope column structure, is the bottom of inhaling the explanation board in order to insert that can be faster, and magnet then is used for assisting to inhale the fixed taking off of explanation board of magnetism.

Wherein, the force-bearing part 6 comprises a limiting part 601; the stress element 6 is of a cylindrical structure, and the interior of the stress element 6 is of a hollow structure; the edge position of the top end of the stress piece 6 is an inclined structure, and the bottom end of the stress piece 6 is provided with a thread; a plurality of limiting pieces 601 are arranged inside the top end of the stress piece 6, and the limiting pieces 601 are made of spring plates; the top end of the limiting piece 601 is an inclined structure, a groove is formed in the outer side of the bottom of the limiting piece 601, and a plurality of wedge blocks are arranged at the bottom of the outer side of the limiting piece 601; locating part 601 is limit structure that can overturn, atress piece 6 is used for establishing the topmost of this device, make need when the higher position writing on blackboard of blackboard, can insert the inside of atress piece 6 with the chalk, thereby use this device control chalk to write on blackboard in higher department, and the top of atress piece 6 is slope column structure, be in order to make the chalk insert, can lead, thereby make the chalk can be installed the use fast, and the inside screw thread that is equipped with in bottom of atress piece 6, be in order to make the chalk insert after, can rotate atress piece 6 through the manpower, make the thread end can be in the inside removal of atress piece 6, thereby outwards push up the chalk, make the chalk can convenient regulation length use.

When in use: when the device is needed to be used, the device can be moved through manpower, then the clamping block 401 is pinched through manpower to retract, then the moving rod 3 is controlled to move upwards, so that the moving rod 3 can be extended to be used, then the bottom plate 102 is overturned and opened through manpower, then the chalk is inserted into the main body 1, then the bottom plate 102 is overturned, so that the bottom of the main body 1 can be blocked by the bottom plate 102, so that the chalk can be stored in the main body 1, when the magnetic adsorption explanation plate needs to be moved and disassembled, the overturning member 5 can be overturned, so that one end of the overturning member 5, which is provided with a threaded head and a stress member 6, can be downwards, then the overturning member 5 is controlled to move downwards, so that the bottom end of the overturning member 5 can be inserted into the slot 301, so that the overturning member 5 is stably fixed, then the magnetic adsorption explanation plate is inserted into the inner slot 501, then the magnetic adsorption explanation plate is lifted through manpower, make the explanation board of magnetism inhale can adsorb be convenient for explanation on the blackboard, when needs are written on the eminence writing board, can open bottom plate 102 through the manpower, thereby take out the chalk, then extract upset 5, control upset 5 upset, make upset 5 one end that has inside groove 501 can be perpendicular down, then make the upset 5 that has inside groove 501 one end remove downwards, make upset 5 can insert the inside of slot 301 once more, then insert the inside of atress piece 6 with the chalk, make the chalk can contact with locating part 601, thereby fix the chalk, then use this device control chalk through the manpower, make the chalk write in blackboard department that can be higher, thereby teach.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a teaching prevents mixing with individual teaching device of teacher which characterized in that: the method comprises the following steps: the device comprises a main body (1), a contact element (2), a moving rod (3), a bottom groove (4), a turnover piece (5) and a stress piece (6); the main body (1) is of a cylindrical structure, and the interior of the main body (1) is of a hollow structure; the outer side of the contact element (2) is made of silica gel, and an insertion plate (202) on the inner side of the top end of the contact element (2) is inserted into the mounting groove at the bottom of the moving groove (101); the bottom end of the moving rod (3) is inserted into the top end of the main body (1), and the top ends of the moving plates (303) at the top ends of the moving rods (3) are connected through a connecting shaft; the bottom groove (4) comprises a clamping block (401); the bottom groove (4) is of a T-shaped structure, and a clamping block (401) is arranged in the bottom groove (4); the fixture block (401) is of a T-shaped structure, and the inner end of the fixture block (401) is connected with the inside of the bottom groove (4) through a spring; the outer end of the fixture block (401) is inserted into the moving groove (101); the bottom grooves (4) are arranged on two sides of the bottom end of the movable rod (3); the overturning piece (5) is arranged between the top ends of the moving plates (303), and the middle position of the overturning piece (5) is penetrated through by a connecting shaft at the top ends of the moving plates (303); the stress piece (6) is arranged at the top end of the turnover piece (5), and the inside of the bottom end of the stress piece (6) is connected with the thread head of the turnover piece (5) through threads; the main body (1) comprises a moving groove (101), a bottom plate (102) and a moving part (103); two sides of the main body (1) are provided with moving grooves (101), the moving grooves (101) are rectangular in structure, and mounting grooves are formed in the middle of the bottoms of the moving grooves (101); the top end of the moving groove (101) is of a wider rectangular structure; the bottom of the main body (1) is provided with a bottom plate (102) through a connecting shaft, and the bottom plate (102) is of a circular plate-shaped structure; the side edge of the top end of the bottom plate (102) is provided with a mounting groove with a middle raised cylindrical structure, and a moving part (103) is mounted inside the mounting groove through a spring; the moving piece (103) is of a cylindrical structure with a convex middle part, and the top end of the moving piece (103) is of an arc-shaped structure; the bottom plate (102) is a turnover sealing structure; the contact element (2) comprises a connecting plate (201) and an inserting plate (202); the contact element (2) is of a cylindrical structure, and a groove of an arc-shaped structure is formed in the outer side of the contact element (2); a connecting plate (201) with a T-shaped plate-shaped structure is arranged on the inner side of the top end of the contact element (2), and an insertion plate (202) with a rectangular structure is arranged on the inner side of the connecting plate (201); the contact element (2) is a pluggable detachable structure; the moving rod (3) comprises an inserting groove (301), a side groove (302) and a moving plate (303); the moving rod (3) is of a cylindrical structure, and a slot (301) of the cylindrical structure is formed in the top end of the moving rod (3); side grooves (302) are formed in two sides of the slot (301), and the side grooves (302) are of T-shaped structures; the bottom end of the moving plate (303) is embedded in the side groove (302), and the bottom end of the moving plate (303) is of a T-shaped plate structure; the moving plate (303) is of a height-adjustable structure; the turnover part (5) comprises an inner groove (501); the overturning part (5) is of a cylindrical structure, and the top end of the overturning part (5) is of a threaded head structure; an inner groove (501) is formed in the middle of the bottom end of the turnover piece (5), and magnets are embedded into two sides of the inner groove (501); two sides of the outer end of the inner groove (501) are of an inclined structure; the overturning part (5) is of an overturning adjusting structure; the force receiving part (6) comprises a limiting part (601); the stress piece (6) is of a cylindrical structure, and the interior of the stress piece (6) is of a hollow structure; the top end edge position of the stress piece (6) is an inclined structure, and the bottom end of the stress piece (6) is provided with a thread; a plurality of limiting pieces (601) are arranged inside the top end of the stress piece (6), and the limiting pieces (601) are made of spring plates; the top end of the limiting piece (601) is of an inclined structure, a groove is formed in the outer side of the bottom of the limiting piece (601), and a plurality of wedge blocks are arranged at the bottom of the outer side of the limiting piece (601); the limiting piece (601) is of a reversible limiting structure.