CN210913402U - Dampproofing formula electronic product transport case - Google Patents

Dampproofing formula electronic product transport case Download PDF

Info

Publication number
CN210913402U
CN210913402U CN201921976582.1U CN201921976582U CN210913402U CN 210913402 U CN210913402 U CN 210913402U CN 201921976582 U CN201921976582 U CN 201921976582U CN 210913402 U CN210913402 U CN 210913402U
Authority
CN
China
Prior art keywords
plate
box body
fixedly connected
sliding
moisture
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
CN201921976582.1U
Other languages
Chinese (zh)
Inventor
刘百顺
吴锋
霍振山
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.)
Zhengzhou Jinzhiyuan Electronic Technology Co ltd
Original Assignee
Zhengzhou Jinzhiyuan Electronic Technology Co ltd
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 Zhengzhou Jinzhiyuan Electronic Technology Co ltd filed Critical Zhengzhou Jinzhiyuan Electronic Technology Co ltd
Priority to CN201921976582.1U priority Critical patent/CN210913402U/en
Application granted granted Critical
Publication of CN210913402U publication Critical patent/CN210913402U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Packaging Frangible Articles (AREA)

Abstract

The utility model discloses a dampproof electronic product transport case, which comprises a case body, a placing plate, a dampproof unit, a fixing unit and a damping unit, wherein the top end of the case body is provided with a case cover, the lower surface of the case cover is fixedly connected with a support ring, the outer side surface of the support ring is arranged corresponding to the inner side surface of the case body, the outer side surface of the placing plate is in sliding connection with the inner side surface of the case body, the middle part of the right end of the placing plate is provided with a sliding groove, the inner part of the sliding groove is in sliding connection with a sliding block, the dampproof unit is arranged in the middle part of the side wall of the case body, the fixing unit is arranged at the upper end of the placing plate, the damping unit is arranged at the upper end of the bottom plate of the case body, the dampproof electronic product transport case, reduce the damage of the vibrations that produce during the transportation to electronic product, the practicality is stronger.

Description

Dampproofing formula electronic product transport case
Technical Field
The utility model relates to an electronic product transportation technology field specifically is a dampproofing formula electronic product transport case.
Background
The electronic product is related products based on electric energy, and mainly comprises; watch, smart mobile phone, the TV set, the video disc player, the video recorder, the video camera, the radio receiver, the radio cassette recorder, the combination audio amplifier, the gramophone, a computer, mobile communication product etc. because of early product mainly uses the electron tube to be the electronic product of basic original paper name, current packing box is paper mostly, and direct and ground contact, the packing box easily wets, the slip phenomenon appears easily when piling up in the packing box, there is the potential safety hazard, the vibrations that produce easily cause the damage of incasement electronic product when the transportation, and can't fix the electronic product of equidimension not, the practicality is lower, for this reason we propose a dampproofing type electronic product transport case and solve above-mentioned defect.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a dampproofing formula electronic product transport case, avoid direct and ground contact, prevent that inside electronic product from weing, prevent that the packing box from appearing sliding easily when piling up, eliminate the potential safety hazard, the vibrations that produce when reducing the transportation are fixed the electronic product of equidimension not conveniently to the damage of electronic product, and the practicality is stronger, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a moisture-proof electronic product transport case comprises a case body, a placing plate, a moisture-proof unit, a fixing unit and a damping unit;
a box body: the top end of the box body is provided with a box cover, the lower surface of the box cover is fixedly connected with a support ring, and the outer side surface of the support ring is arranged corresponding to the inner side surface of the box body;
placing a plate: the outer side face of the placing plate is connected with the inner side face of the box body in a sliding mode, a sliding groove is formed in the middle of the right end of the placing plate, and a sliding block is connected inside the sliding groove in a sliding mode;
a moisture-proof unit: the moisture-proof unit is arranged in the middle of the side wall of the box body;
a fixing unit: the fixing unit is arranged at the upper end of the placing plate;
a damping unit: the damping unit is arranged at the upper end of the bottom plate of the box body;
wherein: the electronic product storage box is characterized by further comprising support legs and clamping grooves, the support legs are symmetrically arranged on the lower surface of a bottom plate of the box body, the clamping grooves are symmetrically arranged at the upper end of the box cover, the support legs and the clamping grooves are correspondingly arranged, an electronic product is placed on the upper surface of the placing plate, a screw rod is rotated from the right end of the screw rod and rotates inside a round hole of the fixing plate, the screw rod drives the moving plate to move when rotating due to the fact that the moving plate is in threaded connection with the screw rod, the moving plate drives a sliding block to slide towards the left side inside a sliding groove to fix the electronic product, shaking of the electronic product in the transportation process can be effectively prevented, transportation safety is improved, a drying agent is arranged to absorb moisture inside the box body, the electronic product is prevented from being affected with damp, when vibration or impact occurs, the placing plate moves downwards due to pressure, because the elastic force of first spring acts on, two sliding rings receive the outside thrust of first spring, thereby play the effect of shock attenuation buffering, prevent that electronic product from receiving vibrations too big and damaging, place the board and drive the guide pillar when moving down and slide compression second spring inside the sleeve, play the effect of further buffering, the sleeve plays limiting displacement to placing the board through the guide pillar simultaneously, prevent to place the board slope, the stabilizer blade can effectively prevent that the bottom plate of box from contacting the moisture on ground, the stabilizer blade is convenient for the box with the cooperation in joint groove to pile up simultaneously, prevent the landing from appearing in the transportation.
Furthermore, the moisture-proof unit comprises a drying agent and a protective net, the drying agent is arranged in the cavity of the side plate of the box body, the protective net is fixedly connected with the inner surface of the cavity of the box body, and the protective net is located on the inner side of the box body and adsorbs moisture in the box body to prevent the electronic product from being affected with damp.
Further, fixed unit includes fixed plate, joint ring, screw rod and movable plate, fixed plate fixed connection is in the upper surface left side of placing the board, the upper end fixed connection of the lower extreme of movable plate and slider, the left end of screw rod is rotated with the round hole of fixed plate upper end and is connected, the interior cambered surface of joint ring and the extrados left end fixed connection of screw rod, the joint ring has two and symmetry to set up in the left side and the right side of fixed plate, the upper end threaded connection of screw rod and movable plate, the screw rod passes the rectangular hole that the box lateral wall set up and extends to the outside of box, the medial surface of fixed plate and movable plate all is provided with the blotter, fixes the electronic product, prevents to appear sideslipping in the transportation.
Furthermore, the shock absorption unit comprises a first connecting plate, a guide rod, a connecting rod, a sliding ring, a second connecting plate and a first spring, the first connecting plate is symmetrically arranged on the outer side of the lower surface of the placing plate, two ends of the guide rod are fixedly connected with a left side plate and a right side plate of the box body respectively, the sliding ring is connected with the outer arc surface of the guide rod in a sliding mode, the sliding ring is provided with two sliding rings, two ends of the first spring are fixedly connected with the inner side surfaces of the two sliding rings respectively, the second connecting plate is fixedly connected to the outer end of the arc surface of the sliding ring, one end of the connecting rod is rotatably connected with the first connecting plate through a pin shaft, the other end of the connecting rod is rotatably connected with the second connecting plate through a pin shaft, the shock absorption effect is.
The upper end of the guide pillar is fixedly connected with the lower surface of the placing plate, the upper end of the second spring is fixedly connected with the lower end of the guide pillar, the lower end of the second spring is fixedly connected with the upper surface of the bottom plate of the box body, the lower end of the sleeve is fixedly connected with the upper surface of the bottom plate of the box body, the outer arc surface of the guide pillar is connected with the inner arc surface of the sleeve in a sliding mode, the second spring is located inside the sleeve, the secondary buffering effect is achieved, and the protection performance is improved.
Compared with the prior art, the beneficial effects of the utility model are that: this dampproofing formula electronic product transport case has following benefit:
1. place the upper surface of placing the board with electronic product, from the rotatory screw rod of the right-hand member of screw rod, the screw rod rotates in the round hole of fixed plate is inside, because movable plate and screw rod threaded connection, the screw rod drives the movable plate when rotating and removes, and the movable plate drives the slider and slides to the left side in the spout and fix electronic product, can prevent effectively that electronic product from rocking in the transportation, improves the security of transportation.
2. Be provided with the drier and come the inside moisture of adsorption tank, avoid electronic product to wet.
3. When meetting vibration or striking, place the board because pressure moves down, place the upper end that the board drove the connecting rod and move down, the lower extreme of connecting rod promotes the gliding ring and slides to the middle part of guide arm, because the elastic force effect of first spring, two sliding rings receive the outside thrust of first spring to play the effect of shock attenuation buffering, prevent that the electronic product from receiving vibrations too big and damage.
4. When the placing plate moves downwards, the guide pillar is driven to slide in the sleeve to compress the second spring, the effect of further buffering is achieved, meanwhile, the sleeve plays a limiting role in the placing plate through the guide pillar, and the placing plate is prevented from inclining.
5. The stabilizer blade can prevent effectively that the bottom plate of box from contacting the moisture on ground, and the stabilizer blade is convenient for the box with the cooperation in joint groove to pile up simultaneously, prevents that the landing from appearing in the transportation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the cross-sectional plane structure of the sleeve according to the present invention.
In the figure: the damping device comprises a box body 1, a box cover 2, a support ring 3, a placing plate 4, a damp-proof unit 5, a drying agent 51, a protective net 52, a fixing unit 6, a fixing plate 61, a clamping ring 62, a screw 63, a moving plate 64, a damping unit 7, a first connecting plate 71, a guide rod 72, a connecting rod 73, a sliding ring 74, a second connecting plate 75, a first spring 76, a supporting leg 8, a sliding block 9, a guide column 10, a sleeve 11, a second spring 12, a clamping groove 13, a sliding groove 14 and a cushion pad 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a moisture-proof electronic product transport case comprises a case body 1, a placing plate 4, a moisture-proof unit 5, a fixing unit 6 and a damping unit 7.
A box body 1: the top of box 1 is provided with case lid 2, and the lower fixed surface of case lid 2 is connected with support ring 3, and the lateral surface of support ring 3 corresponds the setting with the medial surface of box 1.
Placing the plate 4: the outer side face of the placing plate 4 is connected with the inner side face of the box body 1 in a sliding mode, a sliding groove 14 is formed in the middle of the right end of the placing plate 4, and a sliding block 9 is connected inside the sliding groove 14 in a sliding mode.
The moisture-proof unit 5: the moisture-proof unit 5 comprises a drying agent 51 and a protective net 52, the drying agent 51 is arranged in a cavity of a side plate of the box body 1, the protective net 52 is fixedly connected with the inner surface of the cavity of the box body 1, the protective net 52 is positioned at the inner side of the box body 1, and the drying agent 51 adsorbs moisture in the box body 1 to keep the electronic product dry.
The fixing unit 6: the fixed unit 6 comprises a fixed plate 61, a clamping ring 62, a screw 63 and a moving plate 64, the fixed plate 61 is fixedly connected to the left side of the upper surface of the placing plate 4, the lower end of the moving plate 64 is fixedly connected with the upper end of the sliding block 9, the left end of the screw 63 is rotatably connected with a round hole at the upper end of the fixed plate 61, the inner arc surface of the clamping ring 62 is fixedly connected with the left end of the outer arc surface of the screw 63, the clamping ring 62 is provided with two clamping rings 62 which are symmetrically arranged at the left side and the right side of the fixed plate 61, the screw 63 is in threaded connection with the upper end of the moving plate 64, the screw 63 penetrates through a rectangular hole arranged on the side wall of the box body 1 and extends to the outside of the box body 1, the inner side surfaces of the fixed plate 61 and the moving plate 64 are both provided with cushion pads 15, the screw 63 is, the moving plate 64 drives the sliding block 9 to slide to the left side in the sliding groove 14 to fix the electronic product, and the buffer pad 15 plays a role in buffer protection.
The damping unit 7: the damping unit 7 comprises a first connecting plate 71, a guide rod 72, a connecting rod 73, a sliding ring 74, a second connecting plate 75 and a first spring 76, wherein the first connecting plate 71 is symmetrically arranged at the outer side of the lower surface of the placing plate 4, two ends of the guide rod 72 are respectively fixedly connected with the left side plate and the right side plate of the box body 1, the sliding ring 74 is in sliding connection with the outer arc surface of the guide rod 72, two sliding rings 74 are provided, two ends of the first spring 76 are respectively fixedly connected with the inner side surfaces of the two sliding rings 74, the second connecting plate 75 is fixedly connected with the outer end of the arc surface of the sliding ring 74, one end of the connecting rod 73 is rotatably connected with the first connecting plate 71 through a pin shaft, the other end of the connecting rod 73 is rotatably connected with the second connecting plate 75 through a pin shaft, when vibration or impact occurs, the placing plate 4 moves downwards due to pressure, the placing plate 4 drives, due to the elastic force of the first spring 76, the two slide rings 74 are pushed outwards by the first spring 76, thereby playing a role of buffering and damping.
Wherein: still include guide pillar 10, sleeve 11 and second spring 12, the upper end of guide pillar 10 and the lower fixed surface who places board 4 are connected, the upper end of second spring 12 and the lower extreme fixed connection of guide pillar 10, the lower extreme of second spring 12 and the bottom plate upper surface fixed connection of box 1, the lower extreme of sleeve 11 and the bottom plate upper surface fixed connection of box 1, the extrados of guide pillar 10 and the intrados sliding connection of sleeve 11, second spring 12 is located the inside of sleeve 11, it slides compression second spring 12 to drive guide pillar 10 in sleeve 11 inside when placing board 4 and moving down, play the effect of further buffering, sleeve 11 plays limiting displacement to placing board 4 through guide pillar 10 simultaneously, prevent to place board 4 slope.
Wherein: still include stabilizer blade 8 and joint groove 13, the stabilizer blade 8 symmetry sets up in the bottom plate lower surface of box 1, and joint groove 13 symmetry sets up in the upper end of case lid 2, and stabilizer blade 8 and joint groove 13 correspond and set up stabilizer blade 8 and can effectively prevent that the bottom plate of box 1 from contacting the moisture on ground, and stabilizer blade 8 and joint groove 13's cooperation is convenient for box 1 to pile up simultaneously, prevents that the landing from appearing in the transportation.
When in use: an electronic product is placed on the upper surface of a placing plate 4, a screw 63 is rotated from the right end of the screw 63, the screw 63 rotates inside a circular hole of a fixed plate 61, the moving plate 64 is in threaded connection with the screw 63, the screw 63 drives the moving plate 64 to move when rotating, the moving plate 64 drives a slider 9 to slide towards the left side inside a chute 14 to fix the electronic product, a drying agent 51 adsorbs moisture inside a box body 1 to keep the electronic product dry, when vibration or impact occurs, the placing plate 4 moves downwards due to pressure, the placing plate 4 drives the upper end of a connecting rod 73 to move downwards, the lower end of the connecting rod 73 pushes a sliding ring 74 to slide towards the middle of a guide rod 72, due to the elastic force of a first spring 76, two sliding rings 74 are pushed outwards by a first spring 76 to play a buffering role, when the placing plate 4 moves downwards, the guide post 10 is driven to slide inside a sleeve 11 to compress a second spring 12, play the effect of further buffering, sleeve 11 plays limiting displacement to placing board 4 through guide pillar 10 simultaneously, prevents to place board 4 slope, and stabilizer blade 8 can prevent effectively that the bottom plate of box 1 from contacting the moisture on ground, and stabilizer blade 8 is convenient for box 1 with the cooperation in joint groove 13 to pile up simultaneously, prevents that the landing from appearing in the transportation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a dampproofing formula electronic product transport case which characterized in that: comprises a box body (1), a placing plate (4), a moisture-proof unit (5), a fixing unit (6) and a damping unit (7);
case (1): a box cover (2) is arranged at the top end of the box body (1), a support ring (3) is fixedly connected to the lower surface of the box cover (2), and the outer side surface of the support ring (3) is arranged corresponding to the inner side surface of the box body (1);
placing plate (4): the outer side face of the placing plate (4) is connected with the inner side face of the box body (1) in a sliding mode, a sliding groove (14) is formed in the middle of the right end of the placing plate (4), and a sliding block (9) is connected inside the sliding groove (14) in a sliding mode;
moisture-proof unit (5): the moisture-proof unit (5) is arranged in the middle of the side wall of the box body (1);
fixing unit (6): the fixing unit (6) is arranged at the upper end of the placing plate (4);
damping unit (7): the damping unit (7) is arranged at the upper end of the bottom plate of the box body (1);
wherein: still include stabilizer blade (8) and joint groove (13), stabilizer blade (8) symmetry sets up in the bottom plate lower surface of box (1), joint groove (13) symmetry sets up in the upper end of case lid (2), stabilizer blade (8) and joint groove (13) correspond the setting.
2. A moisture-proof transport case for electronic products as claimed in claim 1, wherein: the moisture-proof unit (5) comprises a drying agent (51) and a protective net (52), the drying agent (51) is arranged in a cavity of a side plate of the box body (1), the protective net (52) is fixedly connected with the inner surface of the cavity of the box body (1), and the protective net (52) is located on the inner side of the box body (1).
3. A moisture-proof transport case for electronic products as claimed in claim 1, wherein: the fixed unit (6) comprises a fixed plate (61), a clamping ring (62), a screw (63) and a moving plate (64), the fixed plate (61) is fixedly connected to the left side of the upper surface of the placing plate (4), the lower end of the moving plate (64) is fixedly connected with the upper end of the sliding block (9), the left end of the screw rod (63) is rotationally connected with a round hole at the upper end of the fixed plate (61), the inner arc surface of the clamping ring (62) is fixedly connected with the left end of the outer arc surface of the screw rod (63), the two clamping rings (62) are symmetrically arranged at the left side and the right side of the fixed plate (61), the screw (63) is in threaded connection with the upper end of the moving plate (64), the screw (63) penetrates through a rectangular hole formed in the side wall of the box body (1) and extends to the outside of the box body (1), and buffer pads (15) are arranged on the inner side surfaces of the fixed plate (61) and the moving plate (64).
4. A moisture-proof transport case for electronic products as claimed in claim 1, wherein: the damping unit (7) comprises a first connecting plate (71), a guide rod (72), a connecting rod (73), a sliding ring (74), a second connecting plate (75) and a first spring (76), the first connecting plates (71) are symmetrically arranged on the outer side of the lower surface of the placing plate (4), two ends of the guide rod (72) are respectively fixedly connected with the left side plate and the right side plate of the box body (1), the slide rings (74) are connected with the outer cambered surfaces of the guide rods (72) in a sliding manner, two slide rings (74) are arranged, two ends of the first spring (76) are respectively and fixedly connected with the inner side surfaces of the two sliding rings (74), the second connecting plate (75) is fixedly connected to the outer end of the cambered surface of the sliding ring (74), one end of the connecting rod (73) is rotationally connected with the first connecting plate (71) through a pin shaft, the other end of the connecting rod (73) is rotatably connected with the second connecting plate (75) through a pin shaft.
5. A moisture-proof transport case for electronic products as claimed in claim 1, wherein: the novel storage box is characterized by further comprising a guide pillar (10), a sleeve (11) and a second spring (12), wherein the upper end of the guide pillar (10) is fixedly connected with the lower surface of the placement plate (4), the upper end of the second spring (12) is fixedly connected with the lower end of the guide pillar (10), the lower end of the second spring (12) is fixedly connected with the upper surface of the bottom plate of the box body (1), the lower end of the sleeve (11) is fixedly connected with the upper surface of the bottom plate of the box body (1), the outer arc surface of the guide pillar (10) is slidably connected with the inner arc surface of the sleeve (11), and the second spring (12) is located inside the sleeve (11).
CN201921976582.1U 2019-11-15 2019-11-15 Dampproofing formula electronic product transport case Expired - Fee Related CN210913402U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921976582.1U CN210913402U (en) 2019-11-15 2019-11-15 Dampproofing formula electronic product transport case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921976582.1U CN210913402U (en) 2019-11-15 2019-11-15 Dampproofing formula electronic product transport case

Publications (1)

Publication Number Publication Date
CN210913402U true CN210913402U (en) 2020-07-03

Family

ID=71363117

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921976582.1U Expired - Fee Related CN210913402U (en) 2019-11-15 2019-11-15 Dampproofing formula electronic product transport case

Country Status (1)

Country Link
CN (1) CN210913402U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112777159A (en) * 2021-01-19 2021-05-11 杨其鑫 Commodity circulation transportation is with inside rack of green pollution-free container
CN113007525A (en) * 2021-03-01 2021-06-22 中铁十九局集团轨道交通工程有限公司 Vibration reduction structure for shield equipment detection device
CN114148622A (en) * 2021-11-23 2022-03-08 方友良 Paperboard packaging box
CN114246087A (en) * 2020-09-25 2022-03-29 洪江市禹甜科技有限公司 Multifunctional greenhouse for agricultural planting

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114246087A (en) * 2020-09-25 2022-03-29 洪江市禹甜科技有限公司 Multifunctional greenhouse for agricultural planting
CN112777159A (en) * 2021-01-19 2021-05-11 杨其鑫 Commodity circulation transportation is with inside rack of green pollution-free container
CN113007525A (en) * 2021-03-01 2021-06-22 中铁十九局集团轨道交通工程有限公司 Vibration reduction structure for shield equipment detection device
CN114148622A (en) * 2021-11-23 2022-03-08 方友良 Paperboard packaging box
CN114148622B (en) * 2021-11-23 2024-05-03 浙江诚汤包装有限公司 Paperboard packaging box

Similar Documents

Publication Publication Date Title
CN210913402U (en) Dampproofing formula electronic product transport case
CN211894416U (en) Damp-proof corrugated carton
CN210771137U (en) Damping base for mining machinery equipment
CN206647484U (en) A kind of plant equipment damping device
CN211172063U (en) Pouring type building base with shockproof effect
CN206249194U (en) A kind of hard disc of computer bracing means
CN209597242U (en) A kind of dust-proof steady type rack for test tube for medical test
CN108680206B (en) Temperature and humidity sensor fixing structure
CN208397207U (en) A kind of mechanical equipment apparatus for placing with shock-absorbing function
CN208590098U (en) A kind of speaker with anti-resonance device
CN216526476U (en) Protection device of polarization-maintaining reflector
CN212907299U (en) Current transformer with shockproof structure
CN214608741U (en) Combined package body with elastic lining supporting structure
CN210543830U (en) Liquid tank sealing efficient filter
CN208173366U (en) A kind of quake-proof supporting structure of dry-type transformer
CN207200905U (en) A kind of special protective cover of outdoor power amplifier
CN215110423U (en) Built-in buffer mechanism for speed reducer
CN212775331U (en) Damping base for microphone
CN107831800A (en) A kind of protection device of vacuum pressure controller
CN219119705U (en) Multilayer structure tobacco tar generating set noise reduction device
CN214756755U (en) Portable antidetonation audio amplifier removes base
CN210515716U (en) English teaching assistor
CN215069689U (en) Fixed vacuum circuit breaker damping device
CN212144921U (en) Shock attenuation electric welding
CN208480055U (en) A kind of rigid-flexible circuit board protection structure

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: 20200703

Termination date: 20201115