CN218558688U - Double-layer lifting device - Google Patents
Double-layer lifting device Download PDFInfo
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- CN218558688U CN218558688U CN202223147547.3U CN202223147547U CN218558688U CN 218558688 U CN218558688 U CN 218558688U CN 202223147547 U CN202223147547 U CN 202223147547U CN 218558688 U CN218558688 U CN 218558688U
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Abstract
A double-layer lifting device relates to the technical field of telescopic devices and comprises an outer barrel, a primary hollow lifting mechanism, a secondary lifting mechanism and a driving device; a first-stage hollow lifting mechanism is movably inserted in the outer barrel, a second-stage lifting mechanism is movably inserted in the first-stage hollow lifting mechanism, a driving device for respectively driving the first-stage hollow lifting mechanism and the second-stage lifting mechanism is arranged at the bottom of the outer barrel, and anti-rotation mechanisms are respectively arranged between the first-stage hollow lifting mechanism and the inner wall of the outer barrel and between the second-stage lifting mechanism and the inner wall of the first-stage hollow lifting mechanism; the utility model has simple structure, the first-level hollow lifting mechanism is movably inserted with the second-level lifting mechanism, the bottom of the outer barrel is provided with a driving device which respectively drives the first-level hollow lifting mechanism and the second-level lifting mechanism, the structure is compact, and the occupied space is small; the first-stage hollow lifting mechanism and the second-stage lifting mechanism are respectively driven by two driving motors and lift independently or synchronously.
Description
Technical Field
The utility model belongs to the technical field of the telescoping device technique and specifically relates to a double-deck elevating gear is related to.
Background
As is known, with the gradual upgrade and update of caravans, some existing caravans have a roof lifting function, that is, an enclosure and a top cover are lifted to form a terrace during camping in the field, and a multi-stage telescopic device is required during roof lifting; at present, the multistage telescoping device in market mostly is synchronous flexible, can't satisfy the car as a house and rise alone and enclose the demand that keeps off or the top cap, and the multistage telescoping device that possesses independent lift now mostly is the many sets of single-stage elevating system of superpose each other, and occupation space is great, does not accord with car as a house maximize space utilization's user demand, and this kind of phenomenon is the problem that technical staff in the field awaited the solution urgently.
Disclosure of Invention
In order to overcome the deficiency in the background art, the utility model discloses a double-deck elevating gear.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a double-layer lifting device comprises an outer barrel, a primary hollow lifting mechanism, a secondary lifting mechanism and a driving device; a primary hollow lifting mechanism is movably inserted in the outer barrel, a secondary lifting mechanism is movably inserted in the primary hollow lifting mechanism, a driving device for driving the primary hollow lifting mechanism and the secondary lifting mechanism respectively is arranged at the bottom of the outer barrel, and anti-rotation mechanisms are arranged between the primary hollow lifting mechanism and the inner wall of the outer barrel and between the secondary lifting mechanism and the inner wall of the primary hollow lifting mechanism;
the first-stage hollow lifting mechanism comprises a first-stage hollow sleeve which is coaxially and movably inserted with the outer barrel, the top of the first-stage hollow sleeve extends out of the outer barrel, a hollow screw rod with the bottom being in corresponding transmission connection with the driving device is coaxially and movably inserted in the first-stage hollow sleeve, and a first-stage nut which is correspondingly screwed with the hollow screw rod is fixedly connected to the bottom of the first-stage hollow sleeve;
the second-stage lifting mechanism comprises a second-stage hollow sleeve which is coaxially and movably inserted and connected with the first-stage hollow sleeve correspondingly, the length of the second-stage hollow sleeve is smaller than that of the first-stage hollow sleeve, the top of the second-stage hollow sleeve extends out of the first-stage hollow sleeve, a spline lead screw is coaxially and movably inserted and connected in the second-stage hollow sleeve, a rod body of the spline lead screw, which is positioned in the second-stage hollow sleeve, is a lead screw, and a rod body extending out of the second-stage hollow sleeve is a spline shaft; the bottom of the second-stage hollow sleeve is fixedly connected with a second-stage nut which is correspondingly screwed with a lead screw of the spline lead screw; the spline shaft body of the spline screw is sleeved with a spline sleeve which is coaxially and movably inserted with the hollow screw, and the bottom of the spline sleeve extends out of the hollow screw and is correspondingly connected with the driving device in a transmission manner.
Preferably, drive arrangement contains two right-angle gear boxes that stack the installation from top to bottom, and driving motor is all installed to two right-angle gear box's input, and hollow lead screw corresponds the transmission with the right-angle gear box on upper strata and is connected, and the spline housing corresponds the transmission with the right-angle gear box on lower floor and is connected.
Preferably, the rotation preventing mechanism comprises a plurality of guide keys which are respectively installed on the outer wall of the first-stage hollow sleeve and the outer wall of the second-stage hollow sleeve, and guide grooves matched with the corresponding guide keys are respectively formed in the inner wall of the outer barrel and the inner wall of the first-stage hollow sleeve in the axial direction.
Preferably, the length of the second-stage hollow sleeve is half of the length of the first-stage hollow sleeve.
Preferably, a bearing seat is installed in the first-stage hollow sleeve corresponding to the position where the spline lead screw and the spline shaft are connected, and the spline lead screw is correspondingly and rotatably connected with the bearing seat through a bearing.
Preferably, the top of the second-level hollow sleeve is connected with a supporting seat in a universal mode through a spherical hinge.
Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:
the utility model discloses a double-layer lifting device, simple structure, the movable grafting in the urceolus has the hollow elevating system of one-level, and the movable grafting has the second grade elevating system in the hollow elevating system of one-level, and the urceolus bottom is equipped with the drive arrangement who drives the hollow elevating system of one-level and second grade elevating system respectively, and compact structure occupation space is less; the driving device comprises two right-angle transmission boxes which are stacked up and down, driving motors are installed at the input ends of the two right-angle transmission boxes, the hollow lead screw is in transmission connection with the right-angle transmission box on the upper layer in a corresponding mode, the spline sleeve is in transmission connection with the right-angle transmission box on the lower layer in a corresponding mode, namely, the one-level hollow lifting mechanism and the two-level lifting mechanism are driven by the two driving motors respectively, and the one-level hollow lifting mechanism and the two-level lifting mechanism can be controlled by controlling the two driving motors to lift independently or lift synchronously.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of a primary hollow lifting mechanism;
FIG. 3 is a schematic structural diagram of a secondary lifting mechanism;
fig. 4 is a schematic structural view of the support base.
In the figure: 1. an outer cylinder; 2. a first-stage hollow lifting mechanism; 2-1, a first-level hollow sleeve; 2-2, a hollow lead screw; 2-3, a first-stage nut; 3. a secondary lifting mechanism; 3-1, a second-stage hollow sleeve; 3-2, spline lead screw; 3-3, secondary nuts; 3-4, spline housing; 4. a drive device; 5. and (4) supporting the base.
Detailed Description
The present invention will be explained in detail by the following embodiments, and it is to be understood that the present invention is intended to protect all technical improvements within the scope of the present invention, and in the description of the present invention, it is to be understood that if there are the terms "upper", "lower", "front", "rear", "left", "right", etc. indicating the orientation or positional relationship, it is only corresponding to the drawings of the present application, and for the convenience of description of the present invention, it is not intended to indicate or imply that the device or element referred to must have a specific orientation.
With reference to the attached figures 1-4, a double-layer lifting device comprises an outer cylinder 1, a primary hollow lifting mechanism 2, a secondary lifting mechanism 3 and a driving device 4; a primary hollow lifting mechanism 2 is movably inserted in the outer barrel 1, a secondary lifting mechanism 3 is movably inserted in the primary hollow lifting mechanism 2, and a driving device 4 for respectively driving the primary hollow lifting mechanism 2 and the secondary lifting mechanism 3 is arranged at the bottom of the outer barrel 1, so that the structure is compact, and the occupied space is small; anti-rotation mechanisms are arranged between the primary hollow lifting mechanism 2 and the inner wall of the outer barrel 1 and between the secondary lifting mechanism 3 and the inner wall of the primary hollow lifting mechanism 2;
the primary hollow lifting mechanism 2 comprises a primary hollow sleeve 2-1 which is coaxially and movably inserted with the outer cylinder 1, the top of the primary hollow sleeve 2-1 extends out of the outer cylinder 1, a hollow screw 2-2 with the bottom in transmission connection with the driving device 4 is coaxially and movably inserted in the primary hollow sleeve 2-1, and a primary nut 2-3 which is in threaded connection with the hollow screw 2-2 is fixedly connected to the bottom of the primary hollow sleeve 2-1, so that the hollow screw 2-2 can be driven to rotate by the driving device 4, and the primary nut 2-3 is driven by the hollow screw 2-2 to further drive the primary hollow sleeve 2-1 to lift;
the second-stage lifting mechanism 3 comprises a second-stage hollow sleeve 3-1 which is coaxially and movably inserted with the first-stage hollow sleeve 2-1, and the length of the second-stage hollow sleeve 3-1 is smaller than that of the first-stage hollow sleeve 2-1; according to the requirement, the length of the second-stage hollow sleeve 3-1 is half of the length of the first-stage hollow sleeve 2-1; the top of the second-stage hollow sleeve 3-1 extends out of the first-stage hollow sleeve 2-1, a spline lead screw 3-2 is coaxially and movably inserted in the second-stage hollow sleeve 3-1, a rod body of the spline lead screw 3-2, which is positioned in the second-stage hollow sleeve 3-1, is a lead screw, and a rod body extending out of the second-stage hollow sleeve 3-1 is a spline shaft; the bottom of the second-stage hollow sleeve 3-1 is fixedly connected with a second-stage nut 3-3 which is correspondingly screwed with a screw rod of the spline screw rod 3-2; the spline shaft body of the spline lead screw 3-2 is sleeved with a spline housing 3-4 which is coaxially and movably inserted with the hollow lead screw 2-2 correspondingly, the bottom of the spline housing 3-4 extends out of the hollow lead screw 2-2 and is in transmission connection with the driving device 4 correspondingly, the length of the spline housing 3-4 is larger than the stroke of the primary hollow sleeve 2-1, the spline shaft of the spline lead screw 3-2 is prevented from being separated from the spline housing 3-4, namely the spline housing 3-4 can be driven by the driving device 4 to rotate, the spline housing 3-4 drives the spline lead screw 3-2 to rotate, and the spline lead screw 3-2 drives the secondary nut 3-3 to further drive the secondary hollow sleeve 3-1 to lift;
the driving device 4 comprises two right-angle transmission boxes which are stacked up and down, driving motors are arranged at the input ends of the two right-angle transmission boxes, the hollow lead screw 2-2 is in corresponding transmission connection with the right-angle transmission box on the upper layer, and the spline sleeve 3-4 is in corresponding transmission connection with the right-angle transmission box on the lower layer, namely the primary hollow lifting mechanism 2 and the secondary lifting mechanism 3 are respectively driven by the two driving motors, and the primary hollow lifting mechanism 2 and the secondary lifting mechanism 3 can be controlled to lift independently or synchronously by controlling the two driving motors; the anti-rotation mechanism comprises a plurality of guide keys which are respectively arranged on the outer wall of the first-stage hollow sleeve 2-1 and the outer wall of the second-stage hollow sleeve 3-1, and guide grooves matched with the corresponding guide keys are respectively arranged on the inner wall of the outer barrel 1 and the inner wall of the first-stage hollow sleeve 2-1 along the axial direction, so that the first-stage hollow sleeve 2-1 and the second-stage hollow sleeve 3-1 can be effectively prevented from axially rotating; in addition, a bearing seat is arranged in the primary hollow sleeve 2-1 corresponding to the position where the spline lead screw 3-2 is connected with the spline shaft, and the spline lead screw 3-2 is correspondingly and rotatably connected with the bearing seat through a bearing, so that the stability of the spline lead screw 3-2 can be effectively improved; the top of the second-stage hollow sleeve 3-1 is connected with a supporting seat 5 in a universal mode through a spherical hinge, and the phenomenon that the supporting seat 5 is installed and inclined to produce large bending moment on the second-stage hollow sleeve 3-1 is avoided.
When the double-layer lifting device is used, the hollow lead screw 2-2 is driven to rotate by the driving device 4, and the hollow lead screw 2-2 drives the primary nut 2-3 to drive the primary hollow sleeve 2-1 to jack; the driving device 4 drives the spline housing 3-4 to rotate, the spline housing 3-4 drives the spline lead screw 3-2 to rotate, and the spline lead screw 3-2 drives the secondary nut 3-3 to drive the secondary hollow sleeve 3-1 to lift up.
The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, and all changes coming within the meaning and range of equivalency are intended to be embraced therein.
Claims (6)
1. A double-layer lifting device is characterized in that: comprises an outer cylinder (1), a primary hollow lifting mechanism (2), a secondary lifting mechanism (3) and a driving device (4); a primary hollow lifting mechanism (2) is movably inserted in the outer barrel (1), a secondary lifting mechanism (3) is movably inserted in the primary hollow lifting mechanism (2), a driving device (4) for respectively driving the primary hollow lifting mechanism (2) and the secondary lifting mechanism (3) is arranged at the bottom of the outer barrel (1), and anti-rotation mechanisms are respectively arranged between the primary hollow lifting mechanism (2) and the inner wall of the outer barrel (1) and between the secondary lifting mechanism (3) and the inner wall of the primary hollow lifting mechanism (2);
the primary hollow lifting mechanism (2) comprises a primary hollow sleeve (2-1) which is coaxially and movably inserted with the outer cylinder (1), the top of the primary hollow sleeve (2-1) extends out of the outer cylinder (1), a hollow screw rod (2-2) with the bottom being in corresponding transmission connection with the driving device (4) is coaxially and movably inserted in the primary hollow sleeve (2-1), and a primary nut (2-3) which is in corresponding threaded connection with the hollow screw rod (2-2) is fixedly connected with the bottom of the primary hollow sleeve (2-1);
the second-stage lifting mechanism (3) comprises a second-stage hollow sleeve (3-1) which is coaxially and movably inserted with the first-stage hollow sleeve (2-1), the length of the second-stage hollow sleeve (3-1) is smaller than that of the first-stage hollow sleeve (2-1), the top of the second-stage hollow sleeve (3-1) extends out of the first-stage hollow sleeve (2-1), a spline lead screw (3-2) is coaxially and movably inserted in the second-stage hollow sleeve (3-1), a rod body of the spline lead screw (3-2) positioned in the second-stage hollow sleeve (3-1) is a lead screw, and a rod body extending out of the second-stage hollow sleeve (3-1) is a spline shaft; the bottom of the second-stage hollow sleeve (3-1) is fixedly connected with a second-stage nut (3-3) which is correspondingly screwed with a screw rod of the spline screw rod (3-2); the spline shaft body of the spline lead screw (3-2) is sleeved with a spline sleeve (3-4) which is coaxially and movably inserted with the hollow lead screw (2-2), and the bottom of the spline sleeve (3-4) extends out of the hollow lead screw (2-2) and is correspondingly in transmission connection with the driving device (4).
2. The double-deck lifting device as claimed in claim 1, wherein: the driving device (4) comprises two right-angle transmission boxes which are stacked up and down, driving motors are installed at the input ends of the two right-angle transmission boxes, the hollow lead screws (2-2) are correspondingly in transmission connection with the right-angle transmission box on the upper layer, and the spline sleeves (3-4) are correspondingly in transmission connection with the right-angle transmission box on the lower layer.
3. The double-deck lifting device as claimed in claim 1, wherein: the anti-rotation mechanism comprises a plurality of guide keys which are respectively arranged on the outer wall of the first-stage hollow sleeve (2-1) and the outer wall of the second-stage hollow sleeve (3-1), and guide grooves matched with the corresponding guide keys are respectively arranged on the inner wall of the outer barrel (1) and the inner wall of the first-stage hollow sleeve (2-1) along the axial direction.
4. The double-deck lifting device as claimed in claim 1, wherein: the length of the second-stage hollow sleeve (3-1) is half of that of the first-stage hollow sleeve (2-1).
5. The double-deck lifting device as claimed in claim 1, wherein: and a bearing seat is arranged in the first-stage hollow sleeve (2-1) corresponding to the position where the spline lead screw (3-2) lead screw is connected with the spline shaft, and the spline lead screw (3-2) is correspondingly and rotatably connected with the bearing seat through a bearing.
6. The double-deck lifting device as claimed in claim 1, wherein: the top of the second-stage hollow sleeve (3-1) is connected with a supporting seat (5) through a ball joint in a universal manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223147547.3U CN218558688U (en) | 2022-11-27 | 2022-11-27 | Double-layer lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223147547.3U CN218558688U (en) | 2022-11-27 | 2022-11-27 | Double-layer lifting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218558688U true CN218558688U (en) | 2023-03-03 |
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ID=85305092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223147547.3U Active CN218558688U (en) | 2022-11-27 | 2022-11-27 | Double-layer lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218558688U (en) |
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2022
- 2022-11-27 CN CN202223147547.3U patent/CN218558688U/en active Active
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