CN113759317A - Umbrella-shaped telescopic mechanism - Google Patents
Umbrella-shaped telescopic mechanism Download PDFInfo
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- CN113759317A CN113759317A CN202111049938.9A CN202111049938A CN113759317A CN 113759317 A CN113759317 A CN 113759317A CN 202111049938 A CN202111049938 A CN 202111049938A CN 113759317 A CN113759317 A CN 113759317A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 29
- 238000010586 diagram Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
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- Radar, Positioning & Navigation (AREA)
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Abstract
The invention discloses an umbrella-shaped telescopic mechanism, which comprises: the base, antenna module and lifting unit, the antenna module includes fixing base and a plurality of first extensible member, the fixing base sets up in the top of base, first extensible member includes antenna and first linear driving spare, the antenna is scalable and its one end is articulated with the fixing base, the other end can be dismantled with the base and be connected, first linear driving spare has stiff end and extension end, the stiff end of first linear driving spare is articulated with the fixing base, the extension end is articulated with the antenna, be used for driving the antenna to rotate along its articulated axis department, lifting unit has stiff end and extension end, lifting unit's stiff end is connected with the base, it is connected with the fixing base to stretch out the end, be used for the drive fixing base is close to or keeps away from the base. The invention can solve the technical problem that the extension and retraction mechanism of the motor radar extends or contracts through a plurality of driving pieces in the prior art, so that the weight of the motor radar is large.
Description
Technical Field
The invention relates to the technical field of mobile radars, in particular to an umbrella-shaped telescopic mechanism.
Background
The high-mobility vehicle-mounted radar is the development trend of modern radars, and has stronger self-moving property, trafficability and transportability.
High motor vehicle radar can be on the highway, the iron movement, the air transportation and the water movement go up and carry out the transportation, high motor radar can expand in a short time key and arrange the position and retrieve simultaneously, the mechanism is withdrawn as main motion to the exhibition, the second extensible member of mechanism's first extensible member and control antenna extension is withdrawn to the exhibition, first extensible member and second extensible member need set up the driving piece alone usually, drive and realize the quick convenient expansion or the shrink of radar, but in order to make things convenient for the transportation of high motor vehicle radar, the mechanism is withdrawn in the exhibition when the design, the self weight of the motor radar of reduction that should try hard when satisfying the needs, be used for convenient transportation.
Therefore, an umbrella-shaped telescopic mechanism is needed to solve the technical problem that the extension or contraction of the extension and retraction mechanism of the mobile radar is realized through a plurality of driving pieces in the prior art, so that the weight of the mobile radar is large.
Disclosure of Invention
In view of this, it is necessary to provide an umbrella-shaped telescoping mechanism, which solves the technical problem in the prior art that the extension and retraction mechanism of the mobile radar is extended or retracted through a plurality of driving members, thereby resulting in a heavy weight of the mobile radar.
In order to achieve the above technical object, a technical solution of the present invention provides an umbrella-shaped telescoping mechanism, including:
a base;
the antenna assembly comprises a fixed seat and a plurality of first telescopic pieces, wherein the fixed seat is arranged above the base, each first telescopic piece comprises an antenna and a first linear driving piece, each antenna can stretch and retract, one end of each antenna is hinged to the corresponding fixed seat, the other end of each antenna is detachably connected with the corresponding base, each first linear driving piece is provided with a fixed end and an extending end, the fixed end of each first linear driving piece is hinged to the corresponding fixed seat, and the extending end of each first linear driving piece is hinged to the corresponding antenna and used for driving the corresponding antenna to rotate along the axis of the hinged position of the corresponding antenna;
the lifting assembly is provided with a fixed end and an extending end, the fixed end of the lifting assembly is connected with the base, the extending end of the lifting assembly is connected with the fixed seat, and the lifting assembly is used for driving the fixed seat to be close to or far away from the base.
Furthermore, the antenna includes first festival arm and a plurality of second festival arm, the one end of first festival arm with the fixing base is articulated, the other end has seted up first spout along length direction, the one end slidable of second festival arm is inserted and is located first spout, the other end is followed the direction of first spout has seted up the second spout, and is a plurality of the edge of second festival arm the direction cross-sectional area of first festival arm reduces in proper order and according to the diameter size suit that slides in proper order, and last one second festival arm slidable inserts and locates adjacent next second festival arm.
Furthermore, at least one first guide groove is further formed in the inner wall of the first sliding groove along the axis of the inner wall, the antenna further comprises at least one first sliding block, the first sliding block and the first guide groove are arranged in a one-to-one correspondence mode, and the first sliding block is slidably embedded in the first guide groove along the guide direction of the first guide groove and is connected to the second knuckle arm.
Furthermore, at least one second guide groove is further formed in the inner wall of the second sliding groove along the guide direction of the first sliding groove, the antenna further comprises at least one second sliding block, the second sliding block and the second guide groove are arranged in a one-to-one correspondence mode, and the second sliding block is slidably embedded in the second guide groove along the guide direction of the second guide groove and is connected to the adjacent next second knuckle arm.
Further, umbrella-type telescopic machanism still includes a plurality of locating parts, the locating part with first extensible member one-to-one sets up, the locating part includes fixed block, stopper and second linear driving piece, the fixed block connect in the second festival arm set up in first extensible member is kept away from the farthest end of fixing base, the fixed orifices has been seted up to the fixed block, the stopper slidable insert locate the fixed orifices, second linear driving piece has stiff end and extension end, the stiff end of second linear driving piece connect in base, extension end connect in the stopper.
Furthermore, the inner wall of the fixing hole is provided with at least one threaded hole, the threaded hole is communicated with the fixing hole, the limiting block is provided with at least one limiting hole relative to the threaded hole, the limiting part further comprises at least one screw, and the threaded end of the screw penetrates through the limiting block and is in threaded connection with the threaded hole.
Furthermore, the locating part comprises a supporting seat, the supporting seat is connected to the base and arranged below the antenna, and the fixed end of the second linear driving part is connected to the supporting seat.
Further, the fixing seat comprises a first platform plate, a second platform plate and at least one connecting rod, the second platform plate is arranged below the first platform plate, and the at least one connecting rod is arranged between the first platform plate and the second platform plate and is connected with both the first platform plate and the second platform plate.
Furthermore, the antenna assembly further comprises a plurality of connecting seats, the connecting seats and the antennas are arranged in a one-to-one correspondence mode, the connecting seats are arranged at intervals and connected to the first platform plate, the connecting seats are hinged to one end of each antenna, the fixed end of the first linear driving piece is hinged to the second platform plate, and the extending end of the first linear driving piece is hinged to the other end of each antenna.
Further, lifting unit includes second extensible member and third linear driving piece, the second extensible member includes fixed part and extension, the fixed part of second extensible member is connected with the base, the extension of second extensible member with the fixing base is connected, third linear driving piece has stiff end and extension end, the stiff end of third linear driving piece connect in the fixed part of second extensible member, extension end connect in the extension of second extensible member.
Compared with the prior art, the invention has the beneficial effects that: through articulating antenna and fixing base, and through the drive of first straight line driving piece, make the antenna rotate along its axis with the articulated department of fixing base, a structure for forming similar umbrella expansion, make the antenna expand fast and the withdrawal, the antenna is scalable and its other end is articulated with the base simultaneously, lifting unit sets up between base and fixing base and is connected with base and fixing base homogeneous phase, lifting unit can follow it and set up the direction extension or shrink, when lifting unit moves along setting up the direction, drive the antenna and extend or shrink along its axis, such structure, only need set up a driving piece drive lifting unit and go up and down, can drive the antenna and extend or shrink along its axis, thereby can reduce the quantity of the driving piece of setting, reach the purpose that reduces motor radar dead weight.
Drawings
FIG. 1 is a schematic structural diagram of a collapsed state of an umbrella-shaped telescoping mechanism according to an embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
FIG. 3 is a schematic structural diagram of an umbrella-shaped telescoping mechanism in an extended state according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an umbrella-type telescoping mechanism in an expanded state according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a connection between a first jointed arm and a plurality of second jointed arms provided by an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a connection portion of a fixing block, a limiting block and a screw according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fixing base according to an embodiment of the present invention.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate preferred embodiments of the invention and together with the description, serve to explain the principles of the invention and not to limit the scope of the invention.
Referring to fig. 1, the present invention provides an umbrella-shaped telescoping mechanism, including: base 1, antenna module 2 and lifting unit 3, antenna module 2 includes fixing base 21 and a plurality of first extensible member 22, fixing base 21 sets up in the top of base 1, first extensible member 22 includes antenna 221 and first linear driving piece 222, antenna 221 is scalable and its one end is articulated with fixing base 21, the other end can be dismantled with base 1 and be connected, first linear driving piece 222 has stiff end and extension end, the stiff end of first linear driving piece 222 is articulated with fixing base 21, the extension end is articulated with antenna 221, be used for driving antenna 221 to rotate along the axis of its articulated department, lifting unit 3 has stiff end and extension end, lifting unit 3's stiff end is connected with base 1, the end that stretches out is connected with fixing base 21, be used for driving fixing base 21 to be close to or keep away from base 1.
Further, it can be understood that the fixing base 21 and the first telescopic member 22 are disposed above the base 1, and the antenna 221 is hinged to the fixing base 21 and driven by the first linear driving member 222, so that the antenna 221 rotates along the axis of the hinge of the antenna 221 and the fixing base 21, and forms a structure similar to an umbrella unfolding, so that the antenna 221 can be quickly unfolded and retracted.
Further, antenna 221 is scalable and its other end is articulated with base 1, lifting unit 3 sets up between base 1 and fixing base 21 and is connected with base 1 and fixing base 21 homogeneous phase, lifting unit 3 can be along its direction extension or shrink that sets up, when lifting unit 3 moves along setting up the direction, will drive antenna 221 and extend or shrink along its axis, only need set up a driving piece that is used for driving lifting unit 3 to go up and down like this, can be in order to drive antenna 221 and extend or shrink along its axis, thereby can reduce the quantity of the driving piece of setting, reach the purpose that reduces motor radar dead weight.
Further, the number of the first telescopic members 22 in the present invention may be one, two, three, four or more, and the number of the antennas 221 may be increased or decreased according to the actual use requirement, which is not described herein too much.
As shown in fig. 3 to 5, the antenna 221 includes a first link 2211 and a plurality of second links 2212, one end of the first link 2211 is hinged to the fixing base 21, the other end of the first link 2211 is provided with a first sliding slot 2213 along the length direction, one end of the second link 2212 is slidably inserted into the first sliding slot 2213, the other end of the second link 2212 is provided with a second sliding slot 2214 along the guide of the first sliding slot 2213, the second link 2212 is sequentially reduced in cross-sectional area along the guide of the first link 2211 and is sequentially slidably sleeved according to the diameter, and the previous second link 2212 is slidably inserted into the next adjacent second link 2212.
Further, it can be understood that the first segment 2211 of the antenna 221 is a fixed end of the antenna 221 and is hinged to the fixing base 21, and the second segments 2212 are nested in sequence along the direction of the first segment 2211 to form a telescopic structure for extending and contracting the antenna 221.
Further, in the present invention, the number of the second segment arms 2212 may be one, two, three, four or more, and a plurality of the second segment arms 2212 are nested in sequence along the guide of the first segment arm 2211, and the number of the antennas 221 may be increased or decreased according to the actual use requirement, which will not be described herein too much.
As shown in fig. 5, the inner wall of the first sliding slot 2213 is further provided with at least one first guiding slot 2215 along the axis thereof, the antenna 221 further comprises at least one first sliding block 2216, the first sliding blocks 2216 are arranged in one-to-one correspondence with the first guiding slots 2215, and the first sliding block 2216 is slidably embedded in the first guiding slot 2215 along the guiding direction of the first guiding slot 2215 and is connected to the second link arm 2212.
Further, it will be appreciated that the cooperation of the first guide slot 2215 and the first slider 2216 provides a guide and limit for the sliding movement of the second arm 2212 along the first slot 2213.
As shown in fig. 5, the inner wall of the second sliding slot 2214 further has at least one second guiding slot 2217 along the guiding direction of the first sliding slot 2213, the antenna 221 further includes at least one second slider 2218, the second slider 2218 and the second guiding slot 2217 are arranged in a one-to-one correspondence, and the second slider 2218 is slidably embedded in the second guiding slot 2217 along the guiding direction of the second guiding slot 2217 and connected to the next adjacent second link arm 2212.
Further, it will be appreciated that the cooperation of the second guide slot 2217 and the second slider 2218 provides a guide and limit for the sliding movement of the upper second segment arm 2212 along the second sliding slot 2214 of the adjacent lower second segment arm 2212.
As shown in fig. 3, 4 and 6, the umbrella-shaped telescopic mechanism further includes a plurality of limiting members 4, the limiting members 4 are disposed in one-to-one correspondence with the first telescopic members 22, each limiting member 4 includes a fixing block 41, a limiting block 42 and a second linear driving member 43, the fixing block 41 is connected to the second arm 2212 and disposed at the farthest end of the first telescopic member 22 away from the fixing base 21, the fixing block 41 is provided with a fixing hole 411, the limiting block 42 is slidably inserted into the fixing hole 411, the second linear driving member 43 has a fixing end and an extending end, the fixing end of the second linear driving member 43 is connected to the base 1, and the extending end is connected to the limiting block 42.
Further, it can be understood that the antenna 221 and the base 1 can be detached by detachably connecting the other end of the antenna 221 to the fixing hole 411 through the limiting block 42, so as to facilitate the extension or contraction and the expansion and retraction of the antenna 221.
Further, when the limiting block 42 is separated from the fixing block 41, the other end of the antenna 221 can rotate around the hinge joint thereof under the driving of the first linear driving member 222, and otherwise cannot rotate.
As shown in fig. 6, the inner wall of the fixing hole 411 is further provided with at least one threaded hole 412, the threaded hole 412 is communicated with the fixing hole 411, the limiting block 42 is provided with at least one limiting hole 421 relative to the threaded hole 412, the limiting member 4 further comprises at least one screw 44, and the threaded end of the screw 44 penetrates through the limiting block 42 and is in threaded connection with the threaded hole 412.
Further, it can be understood that the combination of the screw 44, the limiting hole 421 and the threaded hole 412 is used to fix and separate the fixing block 41 and the limiting block 42.
As shown in fig. 1, 3 and 4, the position-limiting member 4 includes a supporting base 45, the supporting base 45 is connected to the base 1 and disposed below the antenna 221, and the fixed end of the second linear driving member 43 is connected to the supporting base 45.
Furthermore, in order to facilitate the operation of the user, the second linear driving element 43 is disposed above the supporting seat 45, i.e. the user can easily operate the device by stretching his/her hand without lowering his/her head or bending his/her waist.
Further, specifically, in the present invention, the axis of the extension end of the second linear actuator 43 is parallel to the horizontal plane, and the axis of the fixing hole 411 is coaxial with the axis of the extension end of the second linear actuator.
As shown in fig. 7, the fixing base 21 includes a first platform plate 211, a second platform plate 212, and at least one connecting rod 213, the second platform plate 212 is disposed below the first platform plate 211, and the at least one connecting rod 213 is disposed between the first platform plate 211 and the second platform plate 212 and is connected to both the first platform plate 211 and the second platform plate 212.
Further, it is understood that the fixed base 21 is formed of a first platform plate 211, a second platform plate 212, and at least one connecting rod 213, to form a frame-shaped structure for reducing the weight of the motor radar.
As shown in fig. 7, the antenna assembly 2 further includes a plurality of connecting seats 23, the connecting seats 23 are disposed corresponding to the antennas 221 one by one, the connecting seats 23 are disposed at intervals and connected to the first platform 211, the connecting seats 23 are hinged to one end of the antennas 221, the fixed end of the first linear driving element 222 is hinged to the second platform 212, and the extended end is hinged to the other end of the antennas 221.
Further, it can be understood that one end of the antenna 221 is hinged to the first platform board 211 through the connecting seat 23, the fixed end of the first linear actuator 222 is hinged to the second platform board 212, and the extended end is hinged to the other end of the antenna 221, for facilitating the operation of the first linear actuator 222.
As shown in fig. 1 to 4, the lifting assembly 3 includes a second telescopic member and a third linear driving member, the second telescopic member includes a fixing portion and an extending portion, the fixing portion of the second telescopic member is connected to the base 1, the extending portion of the second telescopic member is connected to the fixing base 21, the third linear driving member has a fixing end and an extending end, the fixing end of the third linear driving member is connected to the fixing portion of the second telescopic member, and the extending end of the third linear driving member is connected to the extending portion of the second telescopic member.
Further, it can be understood that the second telescopic member has a plurality of extension portions, and is disposed to cooperate with the antenna 221, and the extension portion of the second telescopic member is extended by the extension end of the third linear driving member, so as to extend and contract the antenna 221.
Further, the number of the extension parts of the second telescopic member can be one, two, three, four or more, and can be increased or decreased according to actual use conditions.
Further, the third linear actuator may be a multi-stage telescopic hydraulic cylinder or a plurality of single hydraulic cylinders, and the first linear actuator 222 and the second linear actuator 43 may be hydraulic cylinders, push rod motors or other mechanisms capable of linear extension or retraction, which will not be described in detail herein.
According to the specific working process of the invention, the antenna 221 is hinged to the fixed seat 21 and driven by the first linear driving part 222, so that the antenna 221 rotates along the axis of the hinged position of the antenna 221 and the fixed seat 21 to form a structure similar to the unfolding of an umbrella, the antenna 221 is rapidly unfolded and retracted, meanwhile, the antenna 221 can stretch and retract, the other end of the antenna 221 is hinged to the base 1, the lifting assembly 3 is arranged between the base 1 and the fixed seat 21 and connected with the base 1 and the fixed seat 21, the lifting assembly 3 can extend or retract along the setting direction, and when the lifting assembly 3 moves along the setting direction, the antenna 221 is driven to extend or retract along the axis.
Further, when the user uses the mobile radar in the retracted state, the user first drives the third linear driving element to extend the second telescopic element and the first telescopic element 22, then rotates the screw 44 after the movement is extended to a predetermined length, drives the second linear driving element 43 to separate the limiting block 42 from the fixed block 41, and finally drives the first linear driving element 222 to rotate the antenna 221 about the axis of the hinge joint and extend the antenna to a predetermined angle, so that the extended state of the mobile radar is completed.
Further, according to the steps and vice versa, the recovery of the telescopic device can be finished and the telescopic device can be recovered to a contracted state.
With the structure, the antenna 221 can be driven to extend or contract along the axis by only arranging the driving piece to drive the lifting component 3 to lift, so that the number of the driving pieces can be reduced, and the aim of reducing the dead weight of the mobile radar can be fulfilled.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (10)
1. An umbrella telescoping mechanism, comprising:
a base;
the antenna assembly comprises a fixed seat and a plurality of first telescopic pieces, wherein the fixed seat is arranged above the base, each first telescopic piece comprises an antenna and a first linear driving piece, each antenna can stretch and retract, one end of each antenna is hinged to the corresponding fixed seat, the other end of each antenna is detachably connected with the corresponding base, each first linear driving piece is provided with a fixed end and an extending end, the fixed end of each first linear driving piece is hinged to the corresponding fixed seat, and the extending end of each first linear driving piece is hinged to the corresponding antenna and used for driving the corresponding antenna to rotate along the axis of the hinged position of the corresponding antenna;
the lifting assembly is provided with a fixed end and an extending end, the fixed end of the lifting assembly is connected with the base, the extending end of the lifting assembly is connected with the fixed seat, and the lifting assembly is used for driving the fixed seat to be close to or far away from the base.
2. The umbrella-shaped telescoping mechanism of claim 1, wherein the antenna comprises a first arm section and a plurality of second arm sections, one end of the first arm section is hinged to the fixing seat, the other end of the first arm section is provided with a first sliding groove along the length direction, one end of the second arm section is slidably inserted into the first sliding groove, the other end of the second arm section is provided with a second sliding groove along the guide direction of the first sliding groove, the guide cross-sectional areas of the plurality of second arm sections along the first arm section are sequentially reduced and are sequentially slidably sleeved according to the diameter, and the previous second arm section is slidably inserted into the next adjacent second arm section.
3. The umbrella-type telescoping mechanism of claim 2, wherein the inner wall of the first chute is further provided with at least one first guide groove along the axis thereof, the antenna further comprises at least one first slider, the first slider and the first guide groove are arranged in one-to-one correspondence, and the first slider is slidably embedded in the first guide groove along the guide of the first guide groove and is connected to the second knuckle arm.
4. The umbrella-type telescoping mechanism of claim 2, wherein the inner wall of the second chute is further provided with at least one second guide groove along the guide of the first chute, the antenna further comprises at least one second slider, the second slider and the second guide groove are arranged in a one-to-one correspondence, and the second slider is slidably embedded in the second guide groove along the guide of the second guide groove and is connected to the next adjacent second knuckle arm.
5. The umbrella-type telescopic mechanism according to claim 2, further comprising a plurality of limiting members, wherein the limiting members are disposed corresponding to the first telescopic members one to one, each limiting member comprises a fixed block, a limiting block and a second linear driving member, the fixed block is connected to the second arm and disposed at a position where the first telescopic member is far away from the fixed block, the fixed block is provided with a fixed hole, the limiting block is slidably inserted into the fixed hole, the second linear driving member has a fixed end and an extension end, and the fixed end of the second linear driving member is connected to the base and the extension end is connected to the limiting block.
6. The umbrella-shaped telescoping mechanism of claim 5, wherein the inner wall of the fixing hole is further provided with at least one threaded hole, the threaded hole is communicated with the fixing hole, the limiting block is provided with at least one limiting hole opposite to the threaded hole, the limiting block further comprises at least one screw, and the threaded end of the screw penetrates through the limiting block and is in threaded connection with the threaded hole.
7. The umbrella-type telescoping mechanism of claim 5, wherein the stop member comprises a support base connected to the base and disposed below the antenna, and the fixed end of the second linear actuator is connected to the support base.
8. The umbrella-type telescoping mechanism of claim 1, wherein the fixed mount comprises a first platform plate, a second platform plate disposed below the first platform plate, and at least one connecting rod disposed between and connected to both the first and second platform plates.
9. The umbrella-type telescoping mechanism of claim 8, wherein the antenna assembly further comprises a plurality of connecting sockets, the connecting sockets are disposed in one-to-one correspondence with the antennas, the plurality of connecting sockets are spaced apart from each other and connected to a first platform plate, the connecting sockets are hinged to one end of the antennas, the fixed end of the first linear actuator is hinged to a second platform plate, and the extended end is hinged to the other end of the antennas.
10. The umbrella-type telescoping mechanism of claim 1, wherein the lifting assembly comprises a second telescoping member and a third linear drive member, the second telescoping member comprising a fixed portion and an elongated portion, the fixed portion of the second telescoping member being coupled to the base, the elongated portion of the second telescoping member being coupled to the fixed base, the third linear drive member having a fixed end and an elongated end, the fixed end of the third linear drive member being coupled to the fixed portion of the second telescoping member and the elongated end being coupled to the elongated portion of the second telescoping member.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111049938.9A CN113759317B (en) | 2021-09-08 | 2021-09-08 | Umbrella-shaped telescopic mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111049938.9A CN113759317B (en) | 2021-09-08 | 2021-09-08 | Umbrella-shaped telescopic mechanism |
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| CN113759317A true CN113759317A (en) | 2021-12-07 |
| CN113759317B CN113759317B (en) | 2024-04-26 |
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