CN209044982U - A kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise - Google Patents

A kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise Download PDF

Info

Publication number
CN209044982U
CN209044982U CN201820919651.4U CN201820919651U CN209044982U CN 209044982 U CN209044982 U CN 209044982U CN 201820919651 U CN201820919651 U CN 201820919651U CN 209044982 U CN209044982 U CN 209044982U
Authority
CN
China
Prior art keywords
fixedly connected
block
noise reduction
noise
impacting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201820919651.4U
Other languages
Chinese (zh)
Inventor
王闻华
罗娜娜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201820919651.4U priority Critical patent/CN209044982U/en
Application granted granted Critical
Publication of CN209044982U publication Critical patent/CN209044982U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Toys (AREA)

Abstract

The utility model discloses a kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise, including pedestal, it is fixedly connected with striker at the top of the pedestal, the top of the pedestal and is located on rear side of striker and is fixedly connected with litter.The utility model passes through setting striker, silencing groove, impact support plate, cushion hole, buffering chute, cushioning supportive block, support spring, bottom elastic slice, buffer sliding block, stretch cord, limiting buffer device, elastic connection block, top elastic slice, support slipper, track box, extension spring, elastic silencing block, noise reduction slot, noise reduction block, mutual cooperation between denoiser and noise reduction foot pad, noise when using teaching mechanics Apparatus for Impacting at low-temp becomes smaller, effectively reduce Apparatus for Impacting at low-temp generated noise phenomena in carrying out impact teaching process, academics and students are made to be no longer influenced by the puzzlement of noise, enable what student more focused on to learn, to greatly improve the efficiency of teaching.

Description

A kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise
Technical field
The utility model relates to physics teaching technical field, specially a kind of smaller mechanics impact of physics teaching noise Instrument.
Background technique
Teaching is a kind of distinctive personnel training activity of the mankind composed by the religion of teacher and student.Pass through this work Dynamic, teacher guides student to learn and grasp cultural and technical knowledge and technical ability purposeful, planned and organizedly, promotes student's element Matter improves, them is made to become people required for society.
Mechanics Apparatus for Impacting at low-temp is used, often in the teaching process of mechanics shock-testing for rushing to test material Demonstration and test are hit, noise is all bigger during use with Apparatus for Impacting at low-temp for traditional teaching, the serious shadow of excessive noise The mood for having rung student and teacher on classroom makes student become extremely irritated, to make efficiency of teaching greatly reduce, while mistake Big noise and vibration also directly affects the service life of Apparatus for Impacting at low-temp, reduces the useful life of Apparatus for Impacting at low-temp.
Utility model content
The purpose of this utility model is to provide a kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise, and it is small to have noise The advantages of, solve the problems, such as that conventional physical teaching mechanics Apparatus for Impacting at low-temp noise is excessive.
To achieve the above object, the utility model provides the following technical solutions: a kind of smaller power of physics teaching noise Learn Apparatus for Impacting at low-temp, including pedestal is fixedly connected with striker at the top of the pedestal, the top of the pedestal and is located at striker Rear side be fixedly connected with litter, be fixedly connected with upper limit block at the top of the litter, the surface activity of the litter connects Be connected to sliding sleeve, be fixedly connected with impact bracket on front side of the sliding sleeve, the front side of the impact frame bottom and Impact head is fixedly connected with positioned at the forward position of sliding sleeve, and the position of the top of the striker and corresponding impact head is opened Equipped with silencing groove, the top position of the top of the striker and corresponding silencing groove is provided with impact support plate, the impact The top of support plate and the position of corresponding impact head offer cushion hole, the left and right sides of the impact support plate bottom and The left and right sides position of corresponding silencing groove is fixedly connected to support link block, and the impact support plate passes through two support connections It is fixedly connected at the top of block and striker, the bottom of the silencing groove offers buffering chute, and the bottom of the buffering chute is solid Surely it is connected with cushioning supportive block, support spring, the top of the support spring are fixedly connected at the top of the cushioning supportive block It is fixedly connected with bottom elastic slice, the left and right sides of bottom elastic slice bottom and the left and right sides position for being located at cushioning supportive block It is fixedly connected to buffer sliding block, the bottom of the buffer sliding block through buffering chute and extends to its internal and its activity even Connect, the left and right sides of the cushioning supportive block and be located at buffering chute inside be fixedly connected to stretch cord, described in two The one end of stretch cord far from cushioning supportive block is fixedly connected with two buffer sliding blocks respectively, the left and right two of the buffering chute inner wall The side and position of corresponding buffer sliding block is fixedly connected to limiting buffer device, is fixedly connected with bullet at the top of the bottom elastic slice Property link block, top elastic slice is fixedly connected at the top of the elastic connection block, the left and right sides at the top of the top elastic slice is equal It is fixedly connected with support slipper, the top movable of two support slippers is connected with track box, the top of the support slipper Penetrating orbit box and extend to its it is internal be flexibly connected with the inner wall of track box, the top of the top elastic slice and positioned at two Position between support slipper is provided with extension spring, and the left and right ends of the extension spring are fixed with two support slippers respectively The position of connection, the top of the track box and corresponding cushion hole is fixedly connected with flexible silencing block, the base bottom Four turnings offer noise reduction slot, and the inner wall of the noise reduction slot is connected with noise reduction block, the top of the noise reduction block and Denoiser, the bottom of the noise reduction block and the fixed company of the bottom position for being located at pedestal are fixedly connected with positioned at the inside of noise reduction slot It is connected to noise reduction foot pad.
Preferably, the rearward position of the surface of the litter and corresponding striker is fixedly connected with that there are two firmware, institutes Litter is stated by being fixedly connected on rear side of two firmwares and striker.
Preferably, the position on the inner wall of the sliding sleeve and corresponding litter surface is provided with ball, the sliding sleeve Cylinder is flexibly connected by ball with litter, and the position of the top and bottom of the sliding sleeve and corresponding litter is fixedly connected with There is ball baffle.
Preferably, the limiting buffer device includes buffer spring, one end of the buffer spring and the inner wall of buffering chute It is fixedly connected, the buffer spring is fixedly connected with cushion far from one end of buffering chute, and the side of the buffer sliding block is simultaneously And the position of corresponding cushion is fixedly connected with engagement pad.
Preferably, the denoiser includes resilient stud, the company of being fixedly connected at the top and bottom of the resilient stud Connection pad, the resilient stud are fixedly connected at the top of the top of noise reduction slot inner wall and noise reduction block respectively by two connection gaskets, Noise reduction spring is provided on the outside of the resilient stud, two connection gaskets are fixedly connected by noise reduction spring.
Preferably, the noise reduction foot pad includes noise reduction connecting plate, the top of the noise reduction connecting plate and the bottom of noise reduction block It is fixedly connected, the bottom of the noise reduction connecting plate is fixedly connected with foot pad magma, and the quantity of the foot pad magma is three and waits The bottom of noise reduction connecting plate is arranged in distance.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the utility model passes through setting striker, silencing groove, impact support plate, cushion hole, buffering chute, cushioning supportive Block, support spring, bottom elastic slice, buffer sliding block, stretch cord, limiting buffer device, elastic connection block, top elastic slice, support slipper, Mutual cooperation between track box, extension spring, elastic silencing block, noise reduction slot, noise reduction block, denoiser and noise reduction foot pad, makes to teach It learns noise when being used with mechanics Apparatus for Impacting at low-temp and becomes smaller, effectively reduce Apparatus for Impacting at low-temp and produced in carrying out impact teaching process Raw noise phenomena makes academics and students be no longer influenced by the puzzlement of noise, enables what student more focused on to learn It practises, to greatly improve the efficiency of teaching.
2, the utility model plays the role of firm litter by the way that firmware is arranged, and connects litter more stable, The frictional force between sliding sleeve and litter is reduced by the way that ball is arranged, sliding friction is replaced with rolling friction, makes sliding sleeve Cylinder sliding is more smooth, plays the role of protecting ball by the way that ball baffle is arranged, prevents ball from falling.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the structure of the utility model main view;
Fig. 2 is the structural schematic diagram of the utility model side view;
Fig. 3 is the partial enlarged view of A-A in the utility model Fig. 1;
Fig. 4 is the partial enlarged view of B-B in the utility model Fig. 1;
Fig. 5 is the cross-sectional view of the structure of the utility model sliding sleeve main view.
In figure: 1 pedestal, 2 strikers, 3 litter, 4 upper limit blocks, 5 sliding sleeves, 6 impact brackets, 7 impact heads, 8 disappear Sound slot, 9 impact support plates, 10 cushion holes, 11 support link blocks, 12 buffering chutes, 13 cushioning supportive blocks, 14 support springs, 15 Bottom elastic slice, 16 buffer sliding blocks, 17 stretch cords, 18 limiting buffer devices, 1801 buffer springs, 1802 cushions, 19 elastic connections Block, 20 top elastic slices, 21 support slippers, 22 track box, 23 extension springs, 24 elastic silencing blocks, 25 noise reduction slots, 26 noise reduction blocks, 27 denoisers, 2701 resilient studs, 2702 connection gaskets, 2703 noise reduction springs, 28 noise reduction foots pad, 2801 noise reduction connecting plates, 2802 Foot pad magma, 29 firmwares, 30 balls, 31 ball baffles, 32 engagement pads.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-5, a kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise, including pedestal 1, the top of pedestal 1 It is fixedly connected with striker 2, the top of the pedestal 1 and rear side for being located at striker 2 is fixedly connected with litter 3, the surface of litter 3 And the rearward position of corresponding striker 2 is fixedly connected there are two firmware 29, and litter 3 passes through two firmwares 29 and striker 2 rear side is fixedly connected, and is played the role of firm litter 3 by the way that firmware 29 is arranged, is connected litter 3 more stable, The top of litter 3 is fixedly connected with upper limit block 4, and the surface activity of litter 3 is connected with sliding sleeve 5, sliding sleeve 5 it is interior The position on wall and corresponding 3 surface of litter is provided with ball 30, and sliding sleeve 5 is flexibly connected with litter 3 by ball 30, is passed through The frictional force that ball 30, which is arranged, to be reduced between sliding sleeve 5 and litter 3 makes sliding sleeve with rolling friction instead of sliding friction 5 sliding of cylinder is more smooth, and the position of the top and bottom of sliding sleeve 5 and corresponding litter 3 is fixedly connected to ball baffle 31, play the role of protecting ball 30 by the way that ball baffle 31 is arranged, prevents ball 30 from falling, before sliding sleeve 5 Side is fixedly connected with impact bracket 6, impacts the front side of 6 bottom of bracket and is fixedly connected positioned at the forward position of sliding sleeve 5 There is an impact head 7, the position of the top of striker 2 and corresponding impact head 7 offers silencing groove 8, the top of striker 2 and right The top position of silencing groove 8 is answered to be provided with impact support plate 9, the position for impacting the top of support plate 9 and corresponding impact head 7 is opened Equipped with cushion hole 10, the left and right sides position for impacting the left and right sides of 9 bottom of support plate and corresponding silencing groove 8 is fixedly connected with There is support link block 11, impact support plate 9 is fixedly connected by two support link blocks 11 with the top of striker 2, silencing groove 8 Bottom offer buffering chute 12, the bottom of buffering chute 12 is fixedly connected with cushioning supportive block 13, cushioning supportive block 13 Top is fixedly connected with support spring 14, and the top of support spring 14 is fixedly connected with bottom elastic slice 15,15 bottom of bottom elastic slice The left and right sides and be located at cushioning supportive block 13 left and right sides position be fixedly connected to buffer sliding block 16, buffer sliding block 16 Bottom through buffering chute 12 and extend to its it is internal be flexibly connected with it, the left and right sides of cushioning supportive block 13 and be located at The inside of buffering chute 12 is fixedly connected to stretch cord 17, two one end of stretch cord 17 far from cushioning supportive block 13 respectively with Two buffer sliding blocks 16 are fixedly connected, and the position of the left and right sides of 12 inner wall of buffering chute and corresponding buffer sliding block 16 is fixed It is connected with limiting buffer device 18, limiting buffer device 18 includes buffer spring 1801, one end of buffer spring 1801 and buffering chute 12 inner wall is fixedly connected, and buffer spring 1801 is fixedly connected with cushion 1802, snubber slide far from one end of buffering chute 12 The side of the block 16 and position of corresponding cushion 1802 is fixedly connected with engagement pad 32, the top of bottom elastic slice 15 is fixedly connected Flexible link block 19, the top of elastic connection block 19 are fixedly connected with top elastic slice 20, the left and right two at 20 top of top elastic slice Side is fixedly connected to support slipper 21, and the top movable of two support slippers 21 is connected with track box 22, support slipper 21 Top penetrating orbit box 22 and extend to its it is internal be flexibly connected with the inner wall of track box 22, the top and position of top elastic slice 20 Position between two support slippers 21 is provided with extension spring 23, and the left and right ends of extension spring 23 are supported with two respectively Sliding block 21 is fixedly connected, and the position of the top of track box 22 and corresponding cushion hole 10 is fixedly connected with flexible silencing block 24, bottom Four turnings of 1 bottom of seat offer noise reduction slot 25, and the inner wall of noise reduction slot 25 is connected with noise reduction block 26, noise reduction block 26 Top and the inside for being located at noise reduction slot 25 are fixedly connected with denoiser 27, and denoiser 27 includes resilient stud 2701, and elasticity is vertical The top and bottom of column 2701 are fixedly connected to connection gasket 2702, resilient stud 2701 by two connection gaskets 2702 respectively with The top of 25 inner wall of noise reduction slot is fixedly connected with the top of noise reduction block 26, and the outside of resilient stud 2701 is provided with noise reduction spring 2703, two connection gaskets 2702 are fixedly connected by noise reduction spring 2703, the bottom of noise reduction block 26 and the bottom for being located at pedestal 1 Position is fixedly connected with noise reduction foot pad 28, and noise reduction foot pad 28 includes noise reduction connecting plate 2801, the top of noise reduction connecting plate 2801 with The bottom of noise reduction block 26 is fixedly connected, and the bottom of noise reduction connecting plate 2801 is fixedly connected with foot pad magma 2802, foot pad magma 2802 quantity is three and is equidistantly positioned in the bottom of noise reduction connecting plate 2801, passes through setting striker 2, silencing groove 8, punching Hit support plate 9, cushion hole 10, buffering chute 12, cushioning supportive block 13, support spring 14, bottom elastic slice 15, buffer sliding block 16, Stretch cord 17, limiting buffer device 18, elastic connection block 19, top elastic slice 20, support slipper 21, track box 22, extension spring 23, Mutual cooperation between elastic silencing block 24, noise reduction slot 25, noise reduction block 26, denoiser 27 and noise reduction foot pad 28 makes teaching exert oneself Learn Apparatus for Impacting at low-temp use when noise become it is smaller, effectively reduce Apparatus for Impacting at low-temp in carrying out impact teaching process caused by make an uproar Sound phenomenon makes academics and students be no longer influenced by the puzzlement of noise, enables what student more focused on to learn, thus Greatly improve the efficiency of teaching.
In use, the impact template that teaching uses to be placed on to the top of impact support plate 9, rushed by impact head 7 Hit, carry out preliminary noise reduction processing in impact process by elastic silencing block 24, then by top elastic slice 20, extension spring 23, Bottom elastic slice 15, stretch cord 17, support spring 14 and limiting buffer device 18 come carry out buffering noise reduction processing, finally by noise reduction Block 26, denoiser 27 and noise reduction foot pad 28 carry out noise reduction process, and noise is minimized.
In summary: the smaller mechanics Apparatus for Impacting at low-temp of the physics teaching noise passes through setting striker 2, silencing groove 8, punching Hit support plate 9, cushion hole 10, buffering chute 12, cushioning supportive block 13, support spring 14, bottom elastic slice 15, buffer sliding block 16, Stretch cord 17, limiting buffer device 18, elastic connection block 19, top elastic slice 20, support slipper 21, track box 22, extension spring 23, Mutual cooperation between elastic silencing block 24, noise reduction slot 25, noise reduction block 26, denoiser 27 and noise reduction foot pad 28, solves tradition The physics teaching problem excessive with mechanics Apparatus for Impacting at low-temp noise.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise, including pedestal (1), it is characterised in that: the pedestal (1) Top is fixedly connected with striker (2), the top of the pedestal (1) and be located at striker (2) on rear side of be fixedly connected with cunning Pole (3) is fixedly connected with upper limit block (4) at the top of the litter (3), and the surface activity of the litter (3) is connected with cunning Moving sleeve (5), is fixedly connected with impact bracket (6) on front side of the sliding sleeve (5), before impact bracket (6) bottom The side and forward position for being located at sliding sleeve (5) is fixedly connected with impact head (7), the top of the striker (2) and right The position of impact head (7) is answered to offer silencing groove (8), the top position of the top of the striker (2) and corresponding silencing groove (8) It installs and is equipped with impact support plate (9), the position of the top for impacting support plate (9) and corresponding impact head (7) offers slow Punching (10), the left and right sides of described impact support plate (9) bottom and the left and right sides position of corresponding silencing groove (8) are fixed It is connected with support link block (11), the top that impact support plate (9) passes through two supports link block (11) and striker (2) It is fixedly connected, the bottom of the silencing groove (8) offers buffering chute (12), and the bottom of the buffering chute (12) is fixedly connected Have cushioning supportive block (13), is fixedly connected with support spring (14), the support spring at the top of the cushioning supportive block (13) (14) be fixedly connected at the top of bottom elastic slice (15), the left and right sides of bottom elastic slice (15) bottom and be located at buffering branch The left and right sides position of bracer (13) is fixedly connected to buffer sliding block (16), and the bottom of the buffer sliding block (16) is through buffering Sliding slot (12) and extend to its it is internal be flexibly connected with it, the left and right sides of the cushioning supportive block (13) and positioned at snubber slide The inside of slot (12) is fixedly connected to stretch cord (17), the one end of two stretch cords (17) far from cushioning supportive block (13) It is fixedly connected respectively with two buffer sliding blocks (16), the left and right sides of buffering chute (12) inner wall and corresponding buffer sliding block (16) position is fixedly connected to limiting buffer device (18), is fixedly connected with elastic connection at the top of the bottom elastic slice (15) Block (19), is fixedly connected with top elastic slice (20) at the top of the elastic connection block (19), at the top of the top elastic slice (20) The left and right sides is fixedly connected to support slipper (21), and the top movable of two support slippers (21) is connected with track box (22), the top penetrating orbit box (22) of the support slipper (21) and its internal inner walls activity with track box (22) is extended to Connection, the top of the top elastic slice (20) and the position being located between two support slippers (21) are provided with extension spring (23), the left and right ends of the extension spring (23) are fixedly connected with two support slippers (21) respectively, the track box (22) Top and the position of corresponding cushion hole (10) be fixedly connected flexible silencing block (24), four of pedestal (1) bottom Turning offers noise reduction slot (25), and the inner wall of the noise reduction slot (25) is connected with noise reduction block (26), the noise reduction block (26) the top and inside for being located at noise reduction slot (25) is fixedly connected with denoiser (27), the bottom of the noise reduction block (26) is simultaneously And the bottom position for being located at pedestal (1) is fixedly connected with noise reduction foot pad (28).
2. the smaller mechanics Apparatus for Impacting at low-temp of a kind of physics teaching noise according to claim 1, it is characterised in that: the cunning The rearward position of the surface of pole (3) and corresponding striker (2) is fixedly connected there are two firmware (29), and the litter (3) is logical It crosses on rear side of two firmwares (29) and striker (2) and is fixedly connected.
3. the smaller mechanics Apparatus for Impacting at low-temp of a kind of physics teaching noise according to claim 1, it is characterised in that: the cunning The position on the inner wall of moving sleeve (5) and corresponding litter (3) surface is provided with ball (30), and the sliding sleeve (5) passes through rolling Pearl (30) is flexibly connected with litter (3), and the position of the top and bottom of the sliding sleeve (5) and corresponding litter (3) is solid Surely ball baffle (31) are connected with.
4. the smaller mechanics Apparatus for Impacting at low-temp of a kind of physics teaching noise according to claim 1, it is characterised in that: the limit Digit buffer (18) includes buffer spring (1801), and one end of the buffer spring (1801) and the inner wall of buffering chute (12) are solid Fixed connection, the buffer spring (1801) are fixedly connected with cushion (1802) far from the one end of buffering chute (12), described slow The position of the side of slide block (16) and corresponding cushion (1802) is fixedly connected with engagement pad (32).
5. the smaller mechanics Apparatus for Impacting at low-temp of a kind of physics teaching noise according to claim 1, it is characterised in that: the drop Device (27) of making an uproar includes resilient stud (2701), is fixedly connected to connection gasket at the top and bottom of the resilient stud (2701) (2702), the resilient stud (2701) by two connection gaskets (2702) respectively with the top of noise reduction slot (25) inner wall and noise reduction Block is fixedly connected at the top of (26), is provided with noise reduction spring (2703) on the outside of the resilient stud (2701), two companies Connection pad (2702) is fixedly connected by noise reduction spring (2703).
6. the smaller mechanics Apparatus for Impacting at low-temp of a kind of physics teaching noise according to claim 1, it is characterised in that: the drop Foot pad (28) of making an uproar includes noise reduction connecting plate (2801), and the top of the noise reduction connecting plate (2801) and the bottom of noise reduction block (26) are solid Fixed connection, the bottom of the noise reduction connecting plate (2801) are fixedly connected with foot pad magma (2802), the foot pad magma (2802) Quantity be three and to be equidistantly positioned in the bottom of noise reduction connecting plate (2801).
CN201820919651.4U 2018-06-14 2018-06-14 A kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise Expired - Fee Related CN209044982U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820919651.4U CN209044982U (en) 2018-06-14 2018-06-14 A kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820919651.4U CN209044982U (en) 2018-06-14 2018-06-14 A kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise

Publications (1)

Publication Number Publication Date
CN209044982U true CN209044982U (en) 2019-06-28

Family

ID=67028788

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820919651.4U Expired - Fee Related CN209044982U (en) 2018-06-14 2018-06-14 A kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise

Country Status (1)

Country Link
CN (1) CN209044982U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112461688A (en) * 2021-01-26 2021-03-09 山东科技职业学院 Impact testing device for construction steel structural member

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112461688A (en) * 2021-01-26 2021-03-09 山东科技职业学院 Impact testing device for construction steel structural member

Similar Documents

Publication Publication Date Title
CN209044982U (en) A kind of smaller mechanics Apparatus for Impacting at low-temp of physics teaching noise
CN108652251A (en) A kind of high school student's test paper storage device
CN205030659U (en) Novel declare at customs and save with international freight transportation teaching device
CN206833739U (en) A kind of Multi-functional English teaching board
CN209846437U (en) Think political affairs teaching and use multimedia platform
CN208227228U (en) A kind of sound equipment convenient for placement
CN205250739U (en) Teaching of computer equipment is used in laboratory
CN208530081U (en) Multi-functional blackboard suitable for English teaching
CN209087174U (en) A kind of intelligent robot for teenager's teaching
CN206574337U (en) A kind of mechanical demonstration teaching aid of lever principle
CN209879792U (en) Listening comprehension training mechanism convenient to english study usefulness
CN208384850U (en) A kind of piano fingering practice bracket
CN213958043U (en) Intelligent learning board burning jig
CN206043861U (en) A kind of English teaching lectern
CN206134026U (en) Mathematical education probability presentation device
CN218547747U (en) Fingering exercise equipment for piano teaching
CN108799759A (en) A kind of multi-functional ideology and politics multimedia teaching apparatus
CN210535031U (en) English letter exercise device with memory function
CN217092022U (en) Test board for physique health test
CN216905173U (en) Teaching stereo set convenient to carry and convenient fixed
CN210643086U (en) Table equipment for intelligent teaching
CN214436131U (en) Pulling force trainer is used in sports teaching
CN211454858U (en) English listening comprehension exercise device convenient to carry
CN209657553U (en) One kind using finger training device for Piano Teaching
CN211653882U (en) Chinese character jigsaw for pupil to learn Chinese

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190628

Termination date: 20200614