CN213631707U - Remove combination formula plate-fin heat exchanger convenient to installation is dismantled - Google Patents
Remove combination formula plate-fin heat exchanger convenient to installation is dismantled Download PDFInfo
- Publication number
- CN213631707U CN213631707U CN202021981592.7U CN202021981592U CN213631707U CN 213631707 U CN213631707 U CN 213631707U CN 202021981592 U CN202021981592 U CN 202021981592U CN 213631707 U CN213631707 U CN 213631707U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- plate
- box body
- box
- top surface
- 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.)
- Active
Links
Images
Landscapes
- Handcart (AREA)
Abstract
The utility model provides a remove combination formula plate-fin heat exchanger convenient to installation is dismantled, including the travelling car, the bottom surface four corners of travelling car is equipped with the universal wheel respectively, the top surface fixed mounting top surface open-ended box of travelling car, one side fixed mounting several spring telescopic link of box inner wall, one side of the common fixed connection backup pad of expansion end of spring telescopic link, the opposite side of backup pad and the opposite side of box inner wall are the one end of the first spring of fixed connection several respectively, the other end that is located the first spring of homonymy is one side of fixed connection splint respectively, the one end of the first pivot of upper portion bearing installation of one side at the back of the box inner wall, the other end of first pivot is connected with the preceding one. The utility model discloses a mutually supporting between box, splint, bar shaped plate isotructure only through opening or closing the bar shaped plate, can make splint loosen or press from both sides tight heat exchanger, the fixed heat exchanger of person of facilitating the use or dismantle the heat exchanger, easy operation, person of facilitating the use's use.
Description
Technical Field
The utility model belongs to the heat exchanger field, specifically speaking are removal combination formula plate-fin heat exchanger convenient to installation is dismantled.
Background
The appearance of plate-fin heat exchanger has improved a new level to the heat exchange efficiency of heat exchanger, and plate-fin heat exchanger has advantages such as small, light in weight, can handle two kinds of above media simultaneously, and at present, plate-fin heat exchanger has wide application in trades such as oil, chemical industry, natural gas processing, and the chinese that patent number is CN 210802191U uses novel a portable combination formula plate-fin heat exchanger that discloses, and this device is direct to be placed a plurality of heat exchangers on the travelling car fix the heat exchanger through specific locking device, and its mounting means is comparatively complicated, and it is convenient inadequately to use.
SUMMERY OF THE UTILITY MODEL
The utility model provides a removal combination formula plate-fin heat exchanger convenient to installation is dismantled for solve the defect among the prior art.
The utility model discloses a following technical scheme realizes:
a movable combined plate-fin heat exchanger convenient to mount and dismount comprises a movable trolley, universal wheels are respectively arranged at four corners of the bottom surface of the movable trolley, a box body with an opening on the top surface is fixedly mounted on the top surface of the movable trolley, a plurality of spring telescopic rods are fixedly mounted on one side of the inner wall of the box body, movable ends of the spring telescopic rods are fixedly connected with one side of a supporting plate together, one ends of a plurality of first springs are fixedly connected with the other side of the inner wall of the box body and the other ends of a plurality of first springs respectively, the other ends of the first springs positioned at the same side are fixedly connected with one side of a clamping plate respectively, one end of a first rotating shaft is mounted on an upper bearing on one side behind the inner wall of the box body, the other end of the first rotating shaft is connected with a bearing on one side in front of the inner wall of the box body, one side of, the through-hole is seted up at the middle part of box one side, the first gear of periphery fixed mounting of first pivot, the periphery fixed mounting second gear and the line wheel of second pivot, first gear meshes with the second gear mutually, is equipped with the cotton rope in the through-hole, the one end of cotton rope and the middle part fixed connection of backup pad one side, the other end of cotton rope and the top fixed connection of line wheel periphery, the upper portion of box inner wall opposite side is equipped with the stop device that has the self-closing function that can prevent that the bar shaped plate from rolling over, be equipped with the heat exchanger in the box.
As above a removal combination formula plate-fin heat exchanger convenient to installation is dismantled, stop device be the stopper, one side of stopper is connected with the upper portion of box inner wall opposite side is articulated, the one end of the opposite side fixed connection U type pole of box top surface, the other end of U type pole can contact the cooperation with one side of stopper top surface, the biggest book of stopper turns over an angle and is 90, the bottom surface of stopper can contact the cooperation with one side of bar plate top surface.
According to the movable combined plate-fin heat exchanger convenient to mount and dismount, the plurality of guide wheels are mounted on one side of the box body through the support, and the outer sides of the guide wheels are in contact fit with the wire ropes.
According to the movable combined plate-fin heat exchanger convenient to mount and dismount, the wire ropes are steel wire ropes.
According to the movable combined plate-fin heat exchanger convenient to mount and dismount, the bottom surface of the strip-shaped plate is fixedly connected with one ends of the plurality of second springs, the other ends of the second springs are fixedly connected with the top surface of the transverse plate together, and the bottom surface of the transverse plate is in contact fit with the top surface of the heat exchanger.
According to the movable combined plate-fin heat exchanger convenient to mount and dismount, the cushion pad is fixedly mounted on the bottom surface of the box body.
According to the movable combined plate-fin heat exchanger convenient to mount and dismount, the front surface and the back surface of the box body are respectively provided with the third grooves.
The utility model has the advantages that: when the novel heat exchanger is disassembled, a user firstly opens the limiting device, then turns over the strip-shaped plates clockwise, the strip-shaped plates are opened to be positioned outside the box body, the strip-shaped plates drive the first gear to synchronously rotate through the rotating shaft connected with the strip-shaped plates, the first gear drives the second rotating shaft to rotate through the second gear meshed with the first gear, the second rotating shaft drives the wire wheels to synchronously rotate, the wire wheels take up wires, the wire wheels pull the supporting plate rightwards through the cotton ropes, the supporting plate drives the corresponding clamping plates to rightwards move through the corresponding first springs, the spring telescopic rods shrink, the two clamping plates do not clamp the heat exchanger, and the user can stretch hands into the box body to directly take out the heat exchanger; when the heat exchanger is installed, firstly, the strip-shaped plate is opened, the heat exchanger is placed between the two clamping plates, then the strip-shaped plate is directly closed, namely, the strip-shaped plate is rotated anticlockwise to be positioned in the box body, the limiting device automatically closes the strip-shaped plate, and then the strip-shaped plate cannot be turned over towards the outside of the box body, so that the heat exchanger is prevented from being separated from the box body, at the moment, the spring telescopic rod drives the corresponding first spring and the corresponding clamping plates to reset through the supporting plate under the action of self elasticity, the two clamping plates clamp the heat; when the movable trolley vibrates due to the action of external force in the moving process, the heat exchanger slightly shakes, the heat exchanger enables the corresponding first spring to be compressed by pushing the corresponding clamping plate, the force generated by vibration is converted into the elastic force of the first spring and the friction force between the clamping plate and the box body, and the elastic force of the first spring and the friction force between the clamping plate and the box body are offset, so that the effect of buffer protection on the heat exchanger is achieved, and the stability of the heat exchanger is improved; the utility model discloses through the mutual cooperation between structures such as box, splint, bar shaped plate, only through opening or closing the bar shaped plate, can make splint loosen or press from both sides tight heat exchanger, the person of facilitating the use fixes the heat exchanger or dismantles the heat exchanger, easy operation, the use of person of facilitating the use can improve user's work efficiency; the box can form the guard action to the periphery of heat exchanger with the bar shaped plate, avoids exposing between the heat exchanger in the external world, avoids the heat exchanger to collide with other devices when using, has improved the utility model discloses a security, the person's of facilitating the use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of the present invention; FIG. 2 is an enlarged view of section I of FIG. 1; FIG. 3 is an enlarged view of the view from the direction A of FIG. 1; fig. 4 is a partial enlarged view of ii of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A movable combined plate-fin heat exchanger convenient to mount and dismount comprises a movable trolley 1, universal wheels are respectively arranged at four corners of the bottom surface of the movable trolley 1, a box body 2 with an open top surface is fixedly mounted on the top surface of the movable trolley 1, a plurality of spring telescopic rods 3 are fixedly mounted on one side of the inner wall of the box body 2, movable ends of the spring telescopic rods 3 are jointly and fixedly connected with one side of a supporting plate 4, the other side of the supporting plate 4 and the other side of the inner wall of the box body 2 are respectively and fixedly connected with one end of a plurality of first springs 5, the other ends of the first springs 5 positioned on the same side are respectively and fixedly connected with one side of a clamping plate 6, the front surface of the clamping plate 6 is in contact fit with the front surface of the inner wall of the box body 2, the rear surface of the clamping plate 6 is in contact fit with the rear surface of the inner wall of the box body 2, the elastic, the other end of the first rotating shaft 7 is connected with a bearing at one side in front of the inner wall of the box body 2, one side of the first rotating shaft 7 is fixedly connected with one side of the strip-shaped plate 8, one side of the strip-shaped plate 8 with the maximum folding angle of 130 degrees is provided with a first groove 9, the top surface of the first groove 9 is communicated with the outside, the bottom surface of the first groove 9 is communicated with the inside of the box body 2, one side of the top surface of the box body 2 is provided with a second groove 10, the inner side of the second groove 10 is communicated with the inside of the box body 2, the outer side of the second groove 10 is communicated with the outside, a second rotating shaft 11 is arranged in the second groove 10 by a bearing, one end of the second rotating shaft 11 is connected with a bearing at the back of the second groove 10, the other end of the second rotating shaft 11 is connected with a bearing at the front of the second groove 10, the middle part at one side of the box body 2 is, periphery fixed mounting second gear 15 and line wheel 16 of second pivot 11, first gear 14 meshes with second gear 15 mutually, be equipped with cotton rope 17 in the through-hole 13, the middle part fixed connection of the one end of cotton rope 17 and backup pad 4 one side, the other end of cotton rope 17 and the top fixed connection of line wheel 16 periphery, the upper portion of 2 inner wall opposite sides of box is equipped with the stop device that has the self-closing function that can prevent that strip shaped plate 8 from turning over to turn over, be equipped with heat exchanger 18 in the box 2, heat exchanger 18 is plate-fin heat exchanger. When the novel heat exchanger 18 is disassembled, a user firstly opens the limiting device, then turns over the strip-shaped plate 8 clockwise, opens the strip-shaped plate 8 to enable the strip-shaped plate to be positioned outside the box body 2, the strip-shaped plate 8 drives the first gear 14 to synchronously rotate through the rotating shaft 7 connected with the strip-shaped plate, the first gear 14 drives the second rotating shaft 11 to rotate through the second gear 15 meshed with the first gear, the second rotating shaft 11 drives the wire wheel 16 to synchronously rotate, the wire wheel 16 takes up wires, the wire wheel 16 pulls the support plate 4 rightwards through the wire rope 17, the support plate 4 drives the corresponding clamping plate 6 to move rightwards through the corresponding first spring 5, the spring telescopic rod 3 contracts, the heat exchanger 18 is not clamped by the two clamping plates 6 at the moment, and the user can stretch hands into the box body 2 to directly take out the heat exchanger 18; when the heat exchanger 18 is installed, firstly, the strip-shaped plate 8 is opened, the heat exchanger 18 is placed between the two clamping plates 6, then the strip-shaped plate 8 is directly closed, namely, the strip-shaped plate 8 is rotated anticlockwise to be located in the box body 2, the limiting device automatically closes the box body 2, and then the strip-shaped plate 8 cannot be turned over to the outside of the box body 2, so that the heat exchanger 18 is prevented from being separated from the box body 2, at the moment, the spring telescopic rod 3 drives the corresponding first spring 5 and the clamping plates 6 to reset through the supporting plate 4 under the action of self elasticity, the two clamping plates 6 clamp the heat exchanger 18, and at the; when the movable trolley 1 vibrates due to the action of external force in the moving process, the heat exchanger 18 slightly shakes, at the moment, the heat exchanger 18 pushes the corresponding clamping plate 6 to compress the corresponding first spring 5, the force generated by vibration is converted into the elastic force of the first spring 5 and the friction force between the clamping plate 6 and the box body 2, and the elastic force of the first spring 5 and the friction force between the clamping plate 6 and the box body 2 are counteracted, so that the effect of buffer protection on the heat exchanger 18 is achieved, and the stability of the heat exchanger 18 is improved; the utility model discloses through the mutual cooperation between structures such as box 2, splint 6, bar shaped plate 8, only through opening or closing bar shaped plate 8, can make splint 6 loosen or press from both sides tight heat exchanger 18, the person of facilitating the use fixes heat exchanger 18 or dismantles heat exchanger 18, easy operation, the person of facilitating the use's use can improve user's work efficiency; box 2 and strip shaped plate 8 can form the guard action to heat exchanger 18's periphery, avoid exposing in the external world between the heat exchanger 18, avoid heat exchanger 18 to bump with other devices when using, improved the utility model discloses a security, the person's of facilitating the use.
Particularly, as shown in fig. 3, this embodiment stop device be stopper 19, one side of stopper 19 is connected with the upper portion of 2 inner wall opposite sides of box is articulated, stopper 19 is equipped with the torsional spring with the articulated department of box 2, the torsional spring can make stopper 19 turn over anticlockwise, the opposite side fixed connection U type pole 20's of 2 top surfaces of box one end, U type pole 20's the other end can contact the cooperation with one side of stopper 19 top surface, stopper 19's the biggest angle of turning over is 90, stopper 19's bottom surface can contact the cooperation with one side of 8 top surfaces of bar-shaped plate. When slat 8 is opened to needs, the user is at first downwards pressed strip shaped plate 8, then rotate stopper 19 clockwise 90, make stopper 19 be vertical state, stopper 19 can't contact with strip shaped plate 8 this moment, the user can rotate strip shaped plate 8 clockwise, open strip shaped plate 8, the person of facilitating the use takes out heat exchanger 18 in box 2, when closing strip shaped plate 8, direct anticlockwise rotation strip shaped plate 8, make the bottom surface of strip shaped plate 8 press down the top surface of stopper 19, be located stopper 19 below when strip shaped plate 8, and when strip shaped plate 8 and stopper 19 separated, stopper 19 upwards bounces in the anticlockwise rotation of torsional spring effect down, thereby realize the injecing of strip shaped plate 8 position once more, prevent strip shaped plate 8 to box 2 outer turns over a book, the person of facilitating the use's use.
Specifically, as shown in fig. 1, a plurality of guide wheels 21 are mounted on one side of the box 2 according to this embodiment through a bracket, the guide wheels 21 are located between the through hole 13 and the second groove 10, and the outer sides of the guide wheels 21 are in contact fit with the cord 17. This structural design can reduce the area of contact between cotton rope 17 and the box 2, reduces the friction between cotton rope 17 and the box 2 and avoids the cotton rope to damage, improves the life of cotton rope 17, improves the utility model discloses a reliability.
Further, as shown in fig. 1, the wire rope 17 according to this embodiment is a steel wire rope. Wire rope's intensity is big, and the wearability is good, is difficult to the fracture of taking place when using, can improve the utility model discloses a reliability.
Furthermore, as shown in fig. 1, the bottom surface of the strip-shaped plate 8 in this embodiment is fixedly connected to one end of a plurality of second springs 22, the other end of the second springs 22 is fixedly connected to the top surface of a transverse plate 23, and the bottom surface of the transverse plate 23 is in contact fit with the top surface of the heat exchanger 18. When the bottom surface of the transverse plate 23 is in contact fit with the top surface of the heat exchanger 18, the second spring 22 is compressed, the second spring 22 generates downward thrust on the transverse plate 23 at the moment, and the top surface and the bottom surface of the heat exchanger 18 can be clamped and fixed through the mutual fit between the transverse plate 23 and the bottom surface of the box body 2, so that the stability of the heat exchanger 18 is improved.
Furthermore, as shown in fig. 1, a cushion pad is fixedly installed on the bottom surface of the box body 2 in the embodiment, and the cushion pad is a rubber pad. This structural design can play the effect of buffering, prevents that the bottom surface of heat exchanger 18 and box 2 inner wall from taking place to collide with, plays the effect of protection to heat exchanger 18.
Further, as shown in fig. 1, the front and the rear of the box body 2 of the present embodiment are respectively provided with a third groove 12. This structural design can convenience of customers take out heat exchanger 18 in box 2, and the front and the back of heat exchanger 18 can expose in corresponding third recess 12, and when the user need take out heat exchanger 18, the user can place the hand in the front of heat exchanger 18 and the back and grasp heat exchanger 18, directly takes out heat exchanger 18 in box 2 to, the management of heat exchanger 18 also can pass in corresponding third recess 12, convenience of customers's use.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. The utility model provides a remove combination formula plate-fin heat exchanger convenient to installation is dismantled, includes travelling car (1), the bottom surface four corners of travelling car (1) is equipped with universal wheel, its characterized in that respectively: a box body (2) with an opening on the top surface is fixedly arranged on the top surface of a movable trolley (1), a plurality of spring telescopic rods (3) are fixedly arranged on one side of the inner wall of the box body (2), the movable ends of the spring telescopic rods (3) are fixedly connected with one side of a supporting plate (4) together, the other side of the supporting plate (4) and the other side of the inner wall of the box body (2) are fixedly connected with one ends of a plurality of first springs (5) respectively, the other ends of the first springs (5) positioned on the same side are fixedly connected with one side of a clamping plate (6) respectively, one end of a first rotating shaft (7) is arranged on an upper bearing on one side of the back of the inner wall of the box body (2), the other end of the first rotating shaft (7) is connected with a bearing on one side of the front of the inner wall of the box body (2), one side of a strip-shaped plate (8) is fixedly connected with one, bearing installation second pivot (11) in second recess (10), through-hole (13) are seted up in the middle part of box (2) one side, the first gear of periphery fixed mounting (14) of first pivot (7), the middle part fixed mounting second gear (15) and line wheel (16) of periphery fixed mounting second pivot (11), first gear (14) mesh with second gear (15), be equipped with cotton rope (17) in through-hole (13), the one end of cotton rope (17) and the middle part fixed connection of backup pad (4) one side, the other end of cotton rope (17) and the top fixed connection of line wheel (16) periphery, the upper portion of box (2) inner wall opposite side is equipped with the stop device who has the self-closing function that can prevent that strip shaped plate (8) turn over, be equipped with heat exchanger (18) in box (2).
2. The movable combined plate-fin heat exchanger convenient to mount and dismount as claimed in claim 1, wherein: stop device be stopper (19), one side of stopper (19) is connected with the upper portion of box (2) inner wall opposite side is articulated, the one end of the opposite side fixed connection U type pole (20) of box (2) top surface, the other end of U type pole (20) can contact the cooperation with one side of stopper (19) top surface, stopper (19) turn over a angle and be 90 at the biggest, the bottom surface of stopper (19) can contact the cooperation with one side of strip shaped plate (8) top surface.
3. The movable combined plate-fin heat exchanger convenient to mount and dismount as claimed in claim 1, wherein: a plurality of guide wheels (21) are arranged on one side of the box body (2) through a support, and the outer sides of the guide wheels (21) are in contact fit with the thread rope (17).
4. The movable combined plate-fin heat exchanger convenient to mount and dismount as claimed in claim 1, wherein: the thread rope (17) is a steel wire rope.
5. The movable combined plate-fin heat exchanger convenient to mount and dismount as claimed in claim 1, wherein: the bottom surface of the strip-shaped plate (8) is fixedly connected with one ends of a plurality of second springs (22), the other ends of the second springs (22) are fixedly connected with the top surface of a transverse plate (23), and the bottom surface of the transverse plate (23) is in contact fit with the top surface of the heat exchanger (18).
6. The movable combined plate-fin heat exchanger convenient to mount and dismount as claimed in claim 1, wherein: and a cushion pad is fixedly arranged on the bottom surface of the box body (2).
7. The movable combined plate-fin heat exchanger convenient to mount and dismount as claimed in claim 1, wherein: the front and the back of the box body (2) are respectively provided with a third groove (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021981592.7U CN213631707U (en) | 2020-09-11 | 2020-09-11 | Remove combination formula plate-fin heat exchanger convenient to installation is dismantled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021981592.7U CN213631707U (en) | 2020-09-11 | 2020-09-11 | Remove combination formula plate-fin heat exchanger convenient to installation is dismantled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213631707U true CN213631707U (en) | 2021-07-06 |
Family
ID=76648342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021981592.7U Active CN213631707U (en) | 2020-09-11 | 2020-09-11 | Remove combination formula plate-fin heat exchanger convenient to installation is dismantled |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213631707U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114783276A (en) * | 2022-04-11 | 2022-07-22 | 牛冬霞 | Tour guide board for tourism management |
| CN115031565A (en) * | 2022-02-23 | 2022-09-09 | 江苏诺温特热能设备有限公司 | Condensing heat exchanger with quick assembly structure |
-
2020
- 2020-09-11 CN CN202021981592.7U patent/CN213631707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115031565A (en) * | 2022-02-23 | 2022-09-09 | 江苏诺温特热能设备有限公司 | Condensing heat exchanger with quick assembly structure |
| CN114783276A (en) * | 2022-04-11 | 2022-07-22 | 牛冬霞 | Tour guide board for tourism management |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213631707U (en) | Remove combination formula plate-fin heat exchanger convenient to installation is dismantled | |
| CN214396864U (en) | Tablet personal computer transfer device | |
| CN108114917A (en) | A kind of release paper produces cleaning dust remover | |
| CN207966366U (en) | A kind of multi-application wireless control LED advertisement machine display screens | |
| CN208929768U (en) | A kind of easy-to-dismount rotary tooling equipment | |
| CN209041443U (en) | A kind of basis electromechanical equipment damping device | |
| CN209654947U (en) | A kind of display New-support | |
| CN208236554U (en) | A kind of tidal-energy electric generator set of damping | |
| CN208211976U (en) | A kind of stair railing vertical bar cleaning device | |
| CN210650029U (en) | A handheld tool of polishing for preventing fire door frame | |
| CN211944333U (en) | WiFi equipment storage device for dormitory | |
| CN209793675U (en) | Foldable valve overhauls toolbox | |
| CN208993659U (en) | A kind of car washer | |
| CN207950917U (en) | A kind of novel whole cleaner | |
| CN218006160U (en) | Energy storage photovoltaic board with adjustable angle | |
| CN212929280U (en) | Monitoring device of dispatching vehicle for transportation service | |
| CN218441035U (en) | Antidetonation gallows convenient to installation | |
| CN213814479U (en) | Urban land utilization performance evaluation device | |
| CN215421100U (en) | Intelligent wind power electricity energy storage data analysis device | |
| CN211316311U (en) | Serial-type heat collector mounting structure for electric heating | |
| CN211738486U (en) | Touch screen fixing device of touch integrated machine | |
| CN215596777U (en) | Conference host convenient to adjust | |
| CN215950957U (en) | Telescopic suspensible electronic screen | |
| CN211029967U (en) | Precision machinery part snatchs mechanism | |
| CN211406548U (en) | Dustproof structure of outdoor communication cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |