CN211967508U - Mechanical maintenance support - Google Patents
Mechanical maintenance support Download PDFInfo
- Publication number
- CN211967508U CN211967508U CN202020682671.1U CN202020682671U CN211967508U CN 211967508 U CN211967508 U CN 211967508U CN 202020682671 U CN202020682671 U CN 202020682671U CN 211967508 U CN211967508 U CN 211967508U
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- base
- rod
- block
- sliding
- supporting rod
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Abstract
The utility model discloses a mechanical maintenance support, which relates to the technical field of mechanical maintenance and comprises a base, wherein the lower side of the base is provided with a roller wheel, the four corners of the base are in threaded connection with a fixing mechanism, the base is fixedly provided with a stand column, the stand column is in sliding connection with a support plate, the support plate is provided with a placing platform, first installation piece and first spout, it is equipped with first slider to slide in the first spout, be equipped with the second spout on the base, it is equipped with the second slider to slide in the second spout, the fixed second installation piece that is provided with on the stand, first installation piece and first bracing piece one end swing joint, the first bracing piece other end and second slider swing joint, second installation piece and second bracing piece swing joint, the second bracing piece other end and first slider swing joint, second slider and electric telescopic handle swing joint, the electric telescopic handle other end and electric telescopic handle installation piece fixed connection. The utility model has the advantages of strong stability, convenient movement, adjustable supporting height, multiple supporting types and the like.
Description
Technical Field
The utility model belongs to the technical field of the mechanical maintenance, concretely relates to mechanical maintenance support.
Background
Mechanical equipment is various in types, when the mechanical equipment runs, some parts of the mechanical equipment even can perform mechanical motion in different forms, the mechanical equipment comprises a driving device, a speed changing device, a transmission device, a working device, a braking device, a protection device, a lubricating system, a cooling system and the like, and the mechanical equipment needs to be maintained after being used for a long time, so that the normal running of the mechanical equipment is ensured to be particularly important.
In order to facilitate maintenance of mechanical equipment, a maintenance support is generally needed, the traditional mechanical equipment maintenance support is single in structure, only plays a supporting role for the mechanical equipment, is fixed and inconvenient to move, and the traditional mechanical equipment maintenance support is not only poor in fixing effect for the mechanical equipment but also inconvenient to move.
The Chinese patent with the bulletin number of CN210335921U and the bulletin date of 2020.4.17 discloses a portable mechanical equipment maintenance support, which comprises a base (1) and is characterized in that four rollers (10) are symmetrically and rotatably installed at the bottom end of the base (1), two sliding rails (2) are symmetrically and fixedly installed at one ends, far away from the four rollers (10), of the base (1), a sliding table (3) is slidably installed on the two sliding rails (2), four supporting frames (4) are symmetrically and fixedly installed at one sides, far away from the sliding table (3), of the top end of the base (1), the four supporting frames (4) are located at two sides, far away from the two sliding rails (2), a top plate (6) is fixedly installed at one end, far away from the base (1), of the top plate (6) is fixedly installed with a first cylinder (7), the output end of the first cylinder (7) is fixedly connected with a straight plate (5), far away from the top plate (6), just the both ends that straight board (5) kept away from mutually all with correspond two support frame (4) that set up and be close to the one end sliding connection of straight board (5), the one end fixed mounting that first cylinder (7) were kept away from in straight board (5) has bracket (9), the one end that straight board (5) are close to base (1) and be located the position symmetry fixed mounting between bracket (9) have two second cylinders (8).
This patent is convenient for the holistic removal of support through being provided with the gyro wheel to ensure to go the stability of placing through the service brake, and be provided with the slip table of being convenient for to remove, but there is support poor stability, support height can not reconcile the support type single in the use.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provide a mechanical maintenance support, and the utility model can adjust the fixing mechanism after the roller moves the maintenance support to the required position, so that the roller is off the ground, and the fixing mechanism arranged at the four corners is used as a supporting point, thereby ensuring the stability of the maintenance support; different placing tables are selected according to the characteristics of the maintenance parts, and the detachable placing tables enable the placing tables to be more convenient to replace; the electric telescopic rod drives the sliding block to move leftwards when extending out, the first supporting rod and the second supporting rod jointly act to realize upward movement of the supporting plate, the electric telescopic rod drives the sliding block to move rightwards when retracting, the supporting plate downwards moves under the joint action of the first supporting rod and the second supporting rod, and height adjustment of the maintenance support is realized.
The utility model aims at realizing through the following technical scheme:
the utility model provides a mechanical maintenance support, includes the base, the downside symmetry of base is rotated and is installed four gyro wheels, its characterized in that: the four corners of the base are in threaded connection with a fixing mechanism, one end of the upper side of the base is fixedly provided with two upright posts which are in sliding connection with the supporting plate, the upper side of the supporting plate is detachably provided with a placing table, the lower side of the supporting plate, which is close to the upright post side, is fixedly provided with two first mounting blocks, the lower side of the supporting plate is provided with two first sliding grooves, the first sliding grooves are internally provided with first sliding blocks in a sliding manner, the upper side of the base is provided with two second sliding grooves, the second sliding grooves are internally provided with second sliding blocks in a sliding manner, the upright post, which is close to the second sliding grooves, is fixedly provided with second mounting blocks, the first mounting blocks are movably connected with one end of a first supporting rod, the other end of the first supporting rod is movably connected with the second sliding blocks, the second mounting blocks are movably, the side wall of the second sliding block is movably connected with the extending end of the electric telescopic rod through a connecting piece, the fixed end of the electric telescopic rod is fixedly connected with the electric contraction rod mounting block, and the electric contraction rod mounting block is fixedly connected with the upper side of the base.
Preferably, fixed establishment includes threaded rod, rotatory handle and fixed block, threaded rod and base threaded connection, the threaded rod lower extreme extends to the downside and the fixedly connected with fixed block of base, the threaded rod upper end extends to the upside and the fixed rotatory handle of base.
Preferably, the lower end of the fixing block is provided with a rubber pad.
Preferably, two pulleys are installed at the position, corresponding to the upright column, of the supporting plate close to the upright column side.
Preferably, be provided with on the stand and be close to first spout side and be provided with the spacing groove, two the spacing groove all is connected with the pulley sliding block that corresponds the setting.
Preferably, the placing table is a flat plate placing table or an inwards concave placing table.
Preferably, a protection pad is fixedly arranged on the placing table.
Preferably, the protection pad is made of rubber.
Preferably, the first support rod and the second support rod are arranged in a crossed manner, and the crossed points of the first support rod and the second support rod are respectively connected with one end of the connecting rod.
Preferably, the upper side of the supporting plate is provided with a placing table mounting hole, a placing table connecting lug is arranged at the position, corresponding to the placing table mounting hole, of the four corners of the placing table, a through hole is formed in the connecting lug, and the placing table mounting hole is connected with the through hole through a bolt.
The working principle is as follows: when the maintenance support is moved to a required position, the fixing mechanism is adjusted to enable the roller to be separated from the ground, and the fixing mechanisms arranged at the four corners are used as supporting points, so that the defect of poor stability of the maintenance support caused by movement of the roller when the maintenance support works is effectively avoided; different placing tables are selected according to the characteristics of the maintained parts, the detachable placing tables enable the placing tables to be more convenient to replace, and the placing tables of different types meet the supporting work of various parts during maintenance; after that, the electric contraction rod is started, when the electric contraction rod extends leftwards, the second sliding block is driven to move leftwards along the second sliding groove, meanwhile, the first sliding block moves leftwards along the first sliding groove, the supporting plate moves upwards along the upright post under the action of the first supporting rod and the second supporting rod, and when the supporting plate moves to the required height, the electric telescopic rod is stopped to move, so that the supporting height is adjusted.
The beneficial effects of this technical scheme are as follows:
according to the mechanical maintenance support, after the maintenance support is moved to a required position through the idler wheel, the fixing mechanism is adjusted, so that the idler wheel is lifted off the ground, the fixing mechanisms arranged at the four corners are used as supporting points, and the stability of the maintenance support is guaranteed; different placing tables are selected according to the characteristics of the maintenance parts, and the detachable placing tables enable the placing tables to be more convenient to replace; the electric telescopic rod drives the sliding block to move leftwards when extending out, the first supporting rod and the second supporting rod jointly act to realize upward movement of the supporting plate, the electric telescopic rod drives the sliding block to move rightwards when retracting, the supporting plate downwards moves under the joint action of the first supporting rod and the second supporting rod, and height adjustment of the maintenance support is realized. The utility model has the advantages of strong stability, convenient movement, adjustable supporting height, multiple supporting types and the like.
Secondly, according to the mechanical maintenance support, the threaded rod moves upwards or downwards by rotating the rotating handle, when the roller moves the maintenance support to a required position, the rotating handle is rotated to enable the threaded rod to move downwards, the fixed block moves downwards under the driving of the threaded rod, and when the roller leaves the ground, the rotating handle stops rotating; after the supporting is completed, the maintenance support needs to be moved, the handle rotates reversely, the threaded rod moves upwards, the fixing block moves upwards under the driving of the threaded rod, and when the fixing block is separated from the ground, the idler wheel contacts with the ground, so that the maintenance support can be moved.
Thirdly, the utility model provides a pair of mechanical maintenance support, the use of rubber pad makes fixed block contact ground effectively prevent that the fixed block from destroying ground.
Fourth, the utility model provides a pair of mechanical maintenance support, the spacing groove sliding block that sets up in the pulley that sets up in the backup pad and the stand is connected for it is more steady when the backup pad reciprocates along the stand, and the limit value that the backup pad reciprocated has also been confirmed to the setting of spacing groove simultaneously.
Fifth, the utility model provides a pair of mechanical maintenance support, the multiple needs that the platform satisfied multiple required maintenance part and supported of placing, the protection pad of placing the rubber material that the bench set up prevents that required maintenance part from placing and taking place to damage when placing the bench.
Drawings
The foregoing and following detailed description of the invention will be apparent when read in conjunction with the following drawings, in which:
fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the present invention;
fig. 3 is a schematic structural view of the fixing mechanism of the present invention;
fig. 4 is a schematic structural diagram of the stand column of the present invention;
fig. 5 is a schematic structural view of the support plate of the present invention;
in the figure: 1. a base; 2. a roller; 3. a fixing mechanism; 3.1, a threaded rod; 3.2, rotating the handle; 3.3, fixing blocks; 3.4, a rubber pad; 4. a column; 4.1, a limiting groove; 5. a support plate; 5.1, a pulley; 5.2, placing a platform mounting hole; 6. a placing table; 6.1, placing a platform connecting lug; 7. a first mounting block; 8. a first chute; 9. a first slider; 10. a second chute; 11. a second slider; 12. a second mounting block; 13. a first support bar; 14. a second support bar; 15. a connecting member; 16. an electrically retractable rod; 17. an electric telescopic rod mounting block; 18. a protection pad; 19. a connecting rod.
Detailed Description
The technical solution for achieving the objectives of the present invention will be further described by using several specific examples, and it should be noted that the technical solution claimed in the present invention includes, but is not limited to, the following examples.
Example 1
As the most basic embodiment of the utility model, the present embodiment discloses a mechanical maintenance support, as shown in FIGS. 1 and 2, comprising a base 1, four rollers 2 are symmetrically and rotatably installed on the lower side of the base 1, a fixing mechanism 3 is connected with the four corners of the base 1 by screw threads, two upright posts 4 are fixedly installed at one end of the upper side of the base 1, the upright posts 4 are slidably connected with a supporting plate 5, a placing table 6 is detachably installed on the upper side of the supporting plate 5, two first installing blocks 7 are fixedly installed on the lower side of the supporting plate 5 near the upright posts 4, two first sliding grooves 8 are arranged on the lower side of the supporting plate 5, a first sliding block 9 is slidably installed in the first sliding grooves 8, two second sliding grooves 10 are arranged on the upper side of the base 1, a second sliding block 11 is slidably installed in the second sliding grooves 10, a second installing block 12 is fixedly installed on the upright post 4 near the second sliding grooves 10, first installation piece 7 and 13 one end swing joint of first bracing piece, the 13 other ends of first bracing piece and 11 swing joint of second slider, second installation piece 12 and 14 swing joint of second bracing piece, the 14 other ends of second bracing piece and 9 swing joint of first slider, the lateral wall of second slider 11 passes through connecting piece 15 and electric telescopic handle's the end swing joint that stretches out, electric telescopic handle's stiff end and electric telescopic handle installation piece 17 fixed connection, electric telescopic handle installation piece 17 and base 1's upside fixed connection.
Example 2
As a preferred embodiment of the present invention, this embodiment discloses a mechanical maintenance support, as shown in FIGS. 1 and 2, comprising a base 1, four rollers 2 are symmetrically and rotatably installed on the lower side of the base 1, a fixing mechanism 3 is screwed on the four corners of the base 1, two columns 4 are fixedly installed on one end of the upper side of the base 1, the columns 4 are slidably connected with a supporting plate 5, a placing table 6 is detachably installed on the upper side of the supporting plate 5, two first installing blocks 7 are fixedly installed on the lower side of the supporting plate 5 near the columns 4, two first sliding grooves 8 are installed on the lower side of the supporting plate 5, a first slider 9 is slidably installed in the first sliding grooves 8, two second sliding grooves 10 are installed on the upper side of the base 1, a second slider 11 is slidably installed in the second sliding grooves 10, a second installing block 12 is fixedly installed on the side of the column 4 near the second sliding grooves 10, first installation piece 7 and 13 one end swing joint of first bracing piece, the 13 other ends of first bracing piece and 11 swing joint of second slider, second installation piece 12 and 14 swing joint of second bracing piece, the 14 other ends of second bracing piece and 9 swing joint of first slider, the lateral wall of second slider 11 passes through connecting piece 15 and electric telescopic handle's the end swing joint that stretches out, electric telescopic handle's stiff end and electric telescopic handle installation piece 17 fixed connection, electric telescopic handle installation piece 17 and base 1's upside fixed connection.
As shown in fig. 3, preferably, the fixing mechanism 3 includes a threaded rod 3.1, a rotating handle 3.2 and a fixing block 3.3, the threaded rod 3.1 is in threaded connection with the base 1, the lower end of the threaded rod 3.1 extends to the lower side of the base 1 and is fixedly connected with the fixing block 3.3, and the upper end of the threaded rod 3.1 extends to the upper side of the base 1 and fixes the rotating handle 3.2.
Example 3
As a preferred embodiment of the present invention, this embodiment discloses a mechanical maintenance support, as shown in FIGS. 1 and 2, comprising a base 1, four rollers 2 are symmetrically and rotatably installed on the lower side of the base 1, a fixing mechanism 3 is screwed on the four corners of the base 1, two columns 4 are fixedly installed on one end of the upper side of the base 1, the columns 4 are slidably connected with a supporting plate 5, a placing table 6 is detachably installed on the upper side of the supporting plate 5, two first installing blocks 7 are fixedly installed on the lower side of the supporting plate 5 near the columns 4, two first sliding grooves 8 are installed on the lower side of the supporting plate 5, a first slider 9 is slidably installed in the first sliding grooves 8, two second sliding grooves 10 are installed on the upper side of the base 1, a second slider 11 is slidably installed in the second sliding grooves 10, a second installing block 12 is fixedly installed on the side of the column 4 near the second sliding grooves 10, first installation piece 7 and 13 one end swing joint of first bracing piece, the 13 other ends of first bracing piece and 11 swing joint of second slider, second installation piece 12 and 14 swing joint of second bracing piece, the 14 other ends of second bracing piece and 9 swing joint of first slider, the lateral wall of second slider 11 passes through connecting piece 15 and electric telescopic handle's the end swing joint that stretches out, electric telescopic handle's stiff end and electric telescopic handle installation piece 17 fixed connection, electric telescopic handle installation piece 17 and base 1's upside fixed connection.
As shown in fig. 3, preferably, the fixing mechanism 3 includes a threaded rod 3.1, a rotating handle 3.2 and a fixing block 3.3, the threaded rod 3.1 is in threaded connection with the base 1, the lower end of the threaded rod 3.1 extends to the lower side of the base 1 and is fixedly connected with the fixing block 3.3, and the upper end of the threaded rod 3.1 extends to the upper side of the base 1 and fixes the rotating handle 3.2.
Preferably, the lower end of the fixed block 3.3 is provided with a rubber pad 3.4.
As shown in fig. 4 and 5, two pulleys 5.1 are preferably installed on the support plate 5 near the side of the upright 4 corresponding to the upright 4.
Preferably, be provided with on the stand 4 and be close to first spout 8 side and be provided with spacing groove 4.1, two spacing groove 4.1 all is connected with the pulley 5.1 slip block that corresponds the setting.
Preferably, the placing table 6 is a flat placing table 6 or a concave placing table 6.
Preferably, a protection pad 18 is fixedly arranged on the placing table 6.
Preferably, the protection pad 18 is made of rubber.
Preferably, the first support bar 13 and the second support bar 14 are arranged to intersect, and the intersections of the first support bar 13 and the second support bar 14 are respectively connected to one end of the connecting rod 19.
Preferably, a placing table mounting hole 5.2 is formed in the upper side of the supporting plate 5, a placing table connecting lug 6.1 is arranged at the position, corresponding to the placing table mounting hole 5.2, of the four corners of the placing table 6, a through hole is formed in the connecting lug, and the placing table mounting hole 5.2 is connected with the through hole through a bolt.
The working principle is as follows: when the maintenance support is moved to a required position, the fixing mechanism 3 is adjusted to enable the roller 2 to be separated from the ground, the fixing mechanism 3 arranged at the four corners is used as a supporting point, and the defect of poor stability of the maintenance support caused by movement of the roller 2 when the maintenance support works is effectively avoided; different placing tables 6 are selected according to the characteristics of the maintained parts, the detachable placing tables 6 enable the placing tables 6 to be more convenient to replace, and the placing tables 6 of different types meet the supporting work when various parts are maintained; then, the electric contraction rod 16 is started, when the electric contraction rod 16 extends leftwards, the second sliding block 11 is driven to move leftwards along the second sliding groove 10, meanwhile, the first sliding block 9 moves leftwards along the first sliding groove 8, the supporting plate 5 moves upwards along the upright post 4 under the action of the first supporting rod 13 and the second supporting rod 14, and when the supporting plate 5 moves to a required height, the electric contraction rod is stopped to move, so that the supporting height is adjusted.
The beneficial effects of this technical scheme are as follows:
the utility model provides a mechanical maintenance support, after the maintenance support is moved to the required position through the gyro wheel 2, adjust the fixed establishment 3, make the gyro wheel 2 liftoff, the fixed establishment 3 that four corners department set up at this moment is regarded as the strong point, guarantee the stability of maintenance support; different placing tables 6 are selected according to the characteristics of the maintenance parts, and the detachable placing tables 6 enable the placing tables 6 to be more convenient to replace; when the electric telescopic rod 16 extends out, the sliding block is driven to move leftwards, the first supporting rod 13 and the second supporting rod 14 jointly act to realize the upward movement of the supporting plate 5, when the electric telescopic rod retracts, the sliding block is driven to move rightwards, the supporting plate 5 downwards moves under the joint action of the first supporting rod 13 and the second supporting rod 14, and the height adjustment of the maintenance support is realized. The utility model has the advantages of strong stability, convenient movement, adjustable supporting height, multiple supporting types and the like.
The threaded rod 3.1 moves upwards or downwards by rotating the rotating handle 3.2, when the roller 2 moves the maintenance bracket to a required position, the rotating handle 3.2 is rotated to move the threaded rod 3.1 downwards, the fixed block 3.3 is driven by the threaded rod 3.1 to move downwards, and the rotating handle 3.2 stops rotating when the roller 2 is lifted off the ground; after the supporting is completed, the maintenance support needs to be moved, the handle is rotated in a reverse mode for 3.2, the threaded rod is moved upwards for 3.1, the fixing block is moved upwards for 3.3 under the driving of the threaded rod for 3.1, and when the fixing block is separated from the ground, the roller 2 is in contact with the ground at the moment, and the maintenance support can be moved. The use of rubber pad 3.4 makes when fixed block 3.3 contact ground effectively prevent that fixed block 3.3 from destroying ground. The pulley 5.1 arranged on the supporting plate 5 is connected with the limiting groove 4.1 arranged on the upright post 4 in a sliding clamping manner, so that the supporting plate 5 is more stable when moving up and down along the upright post 4, and meanwhile, the limiting value of the up-and-down movement of the supporting plate 5 is also determined by the arrangement of the limiting groove 4.1. The various platforms 6 of placing satisfy the needs that multiple required maintenance part supported, place the protection pad 18 of the rubber material that sets up on the platform 6 and prevent that required maintenance part from taking place to damage when placing on the platform 6.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a mechanical maintenance support, includes base (1), four gyro wheels (2), its characterized in that are installed in the downside symmetry rotation of base (1): the four corners of the base (1) are in threaded connection with a fixing mechanism (3), one end of the upper side of the base (1) is fixedly provided with two upright posts (4), the upright posts (4) are in sliding connection with a support plate (5), the upper side of the support plate (5) is detachably provided with a placing table (6), the lower side of the support plate (5) close to the upright posts (4) is fixedly provided with two first mounting blocks (7), the lower side of the support plate (5) is provided with two first sliding grooves (8), the first sliding grooves (8) are internally provided with a first sliding block (9), the upper side of the base (1) is provided with two second sliding grooves (10), the second sliding grooves (10) are internally provided with a second sliding block (11), the upright posts (4) close to the second sliding grooves (10) are fixedly provided with second mounting blocks (12), and the first mounting blocks (7) are movably connected with one end of a first supporting rod (13), the other end of the first supporting rod (13) is movably connected with the second sliding block (11), the second mounting block (12) is movably connected with the second supporting rod (14), the other end of the second supporting rod (14) is movably connected with the first sliding block (9), the side wall of the second sliding block (11) is movably connected with the extending end of the electric telescopic rod through a connecting piece (15), the fixed end of the electric telescopic rod is fixedly connected with the electric contraction rod mounting block (17), and the electric contraction rod mounting block (17) is fixedly connected with the upper side of the base (1).
2. A mechanical service support according to claim 1, wherein: fixed establishment (3) include threaded rod (3.1), rotatory handle (3.2) and fixed block (3.3), threaded rod (3.1) and base (1) threaded connection, threaded rod (3.1) lower extreme extends to downside and fixedly connected with fixed block (3.3) of base (1), threaded rod (3.1) upper end extends to upside and fixed rotatory handle (3.2) of base (1).
3. A mechanical service support according to claim 2, wherein: and a rubber pad (3.4) is arranged at the lower end of the fixed block (3.3).
4. A mechanical service support according to claim 1, wherein: two pulleys (5.1) are installed at the position, corresponding to the upright post (4), of the supporting plate (5) close to the upright post (4).
5. A mechanical service bracket according to claim 4, characterised in that: be provided with on stand (4) and be close to first spout (8) side and be provided with spacing groove (4.1), two spacing groove (4.1) all are connected with pulley (5.1) slip block that corresponds the setting.
6. A mechanical service support according to claim 1, wherein: the placing table (6) adopts a flat plate placing table (6) or an inwards concave placing table (6).
7. A mechanical service support according to claim 1, wherein: a protection pad (18) is fixedly arranged on the placing table (6).
8. A mechanical service bracket according to claim 7, characterised in that: the protection pad (18) is made of rubber.
9. A mechanical service support according to claim 1, wherein: the first supporting rod (13) and the second supporting rod (14) are arranged in a crossed mode, and the crossed points of the first supporting rod (13) and the second supporting rod (14) are respectively connected with one end of a connecting rod (19).
10. A mechanical service support according to claim 1, wherein: the upside of backup pad (5) is provided with places a mounting hole (5.2), place a position that platform (6) four corners department and place a mounting hole (5.2) and correspond has place a engaging lug (6.1), be provided with the perforation on the engaging lug, it links to each other through the bolt between a mounting hole (5.2) and the perforation to place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020682671.1U CN211967508U (en) | 2020-04-29 | 2020-04-29 | Mechanical maintenance support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020682671.1U CN211967508U (en) | 2020-04-29 | 2020-04-29 | Mechanical maintenance support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211967508U true CN211967508U (en) | 2020-11-20 |
Family
ID=73345948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020682671.1U Expired - Fee Related CN211967508U (en) | 2020-04-29 | 2020-04-29 | Mechanical maintenance support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211967508U (en) |
-
2020
- 2020-04-29 CN CN202020682671.1U patent/CN211967508U/en not_active Expired - Fee Related
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| 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: 20201120 Termination date: 20210429 |