CN112174029A - Mechanical lifting device capable of being adjusted in extensible mode - Google Patents
Mechanical lifting device capable of being adjusted in extensible mode Download PDFInfo
- Publication number
- CN112174029A CN112174029A CN202011101010.6A CN202011101010A CN112174029A CN 112174029 A CN112174029 A CN 112174029A CN 202011101010 A CN202011101010 A CN 202011101010A CN 112174029 A CN112174029 A CN 112174029A
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- China
- Prior art keywords
- ratchet
- hinged
- base
- support piece
- lifting
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- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
- B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
- B66F7/14—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
- B66F7/28—Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Handcart (AREA)
Abstract
The invention discloses an expandable adjusting mechanical lifting device, which comprises a lifting main body, a ratchet handle and a supporting frame, wherein the lifting main body comprises a lifting seat, a base, a screw rod, hinged plates and contraction blocks, the lifting seat and the base are oppositely arranged, the screw rod is positioned between the lifting seat and the base, the screw rod is in threaded connection with the two contraction blocks, the lifting seat and the left side and the right side of the base are respectively provided with four hinged plates, the upper ends of a first hinged plate and a second hinged plate in the four hinged plates are hinged with the lifting seat, the lower ends of a third hinged plate and a fourth hinged plate in the four hinged plates are hinged with the base, the lower end of the first hinged plate, the upper end of the third hinged plate and one contraction block are hinged, and the lower end of the second hinged plate, the upper end of the fourth; the ratchet wheel handle is installed at the end of the screw rod and can drive the screw rod to rotate, and when the screw rod rotates, the two contraction blocks move oppositely or move backwards, so that the lifting seat can lift relative to the base. The invention can apply uniform lifting force to the periphery of the daughter board.
Description
Technical Field
The invention relates to the technical field of connector plugging, in particular to an extensible and adjustable mechanical lifting device.
Background
With the continuous progress of science and technology, the requirement for miniaturization of equipment is higher and higher, the printed boards in a plurality of equipment adopt the installation form of a main board and a daughter board, and the daughter board is generally connected with the main board in a direct-plug mode through a plurality of multi-core connectors so as to reduce the size. However, when the number of connectors and the number of cores of the connectors are large, the friction force of the connectors is large, the connectors are difficult to plug, and the daughter board is easily damaged due to uneven stress when the connectors are forcibly plugged.
Disclosure of Invention
The invention aims to provide an extensible and adjustable mechanical lifting device which can apply uniform lifting force to the periphery of a daughter board and avoid the daughter board from being damaged.
In order to solve the technical problems, the invention adopts a technical scheme that: an expandable adjustable mechanical lifting device is provided, comprising a lifting body, a ratchet handle and a support frame;
the lifting main body comprises a lifting seat, a base, a screw rod, hinged plates and contraction blocks, wherein the lifting seat and the base are arranged oppositely, the screw rod is positioned between the lifting seat and the base, the screw rod is in threaded connection with the two contraction blocks, the lifting seat and the left side and the right side of the base are respectively provided with four hinged plates, the upper ends of a first hinged plate and a second hinged plate in the four hinged plates are hinged with the lifting seat, the lower ends of a third hinged plate and a fourth hinged plate in the four hinged plates are hinged with the base, the lower end of the first hinged plate and the upper end of the third hinged plate are hinged with one contraction block, and the lower end of the second hinged plate and the upper end of the fourth hinged plate are hinged with the other contraction block;
the ratchet wheel handle is arranged at the end part of the screw rod and can drive the screw rod to rotate, and when the screw rod rotates, the two contraction blocks move oppositely or move backwards, so that the lifting seat is lifted relative to the base;
support frame is including a plurality of line type support piece and four L type support piece that are located the upper strata and a plurality of line type bases and four L type bases that are located the lower floor, a plurality of line type support piece and four L type support piece constitution frame shape, a plurality of line type support piece and four L type support piece are equipped with along the axial and supply the round pin axle male jack, and adjacent two peg graft through the round pin axle in a plurality of line type support piece and four L type support piece, each line type support piece pegs graft with line type base movably on vertical direction, each L type support piece pegs graft with L type base movably on vertical direction, lift the seat level is fixed at arbitrary round pin epaxially, works as when the relative base of lift seat goes up and down, drive the line type base and the L type base lift of the relative lower floor of line type support piece of upper strata and L type support piece.
Preferably, springs are connected between the third hinged plate and the fourth hinged plate of the four hinged plates on each side of the lifting seat and the base.
Preferably, the support frame further comprises a plurality of T-shaped support members positioned on the upper layer, the plurality of T-shaped support members are provided with jacks along the axial direction, the plurality of linear support members, the plurality of T-shaped support members and the four L-shaped support members form a frame shape, and each T-shaped support member is movably inserted into the linear base in the vertical direction.
Preferably, a plurality of adjusting holes penetrating through the jacks are formed in the upper surfaces of the linear supporting pieces, the T-shaped supporting pieces and the four L-shaped supporting pieces, the pin shaft is fixed through a pin, and the pin can penetrate through the adjusting holes.
Preferably, the end of the lifting seat is also provided with a jack for the pin shaft to pass through.
Preferably, the ratchet handle comprises a handle main body, an adjusting key, a pressure spring, a compression post, a baffle plate, a clamp, a ratchet, a sealing shell and a ratchet wheel, wherein an accommodating groove is formed in one side of the end portion of the handle main body, the baffle plate, the clamp, the ratchet, the sealing shell and the ratchet wheel are located in the accommodating groove, the ratchet wheel and the ratchet wheel are located between the baffle plate and the sealing shell, the ratchet wheel is located above the ratchet wheel, a through hole is formed in the sealing shell, the ratchet wheel is provided with a square interface, the square interface penetrates through the through hole, the sealing shell can seal the accommodating groove, the clamp clamps the edge of the end portion of the ratchet wheel far away from the square interface, the ratchet wheel is fixed in the accommodating groove, an adjusting groove communicated with the accommodating groove is formed in the other side of the end portion of the handle main body, an installation hole is formed in the, and the pressing column is propped against the bottom of the ratchet, when the adjusting key is shifted left and right, the relative position between the ratchet and the ratchet can be adjusted, and then the ratchet can only rotate in one direction.
Different from the prior art, the invention has the beneficial effects that:
1. the whole size is small and exquisite, and the method is suitable for small-sized daughter boards;
2. the size can be expanded and adjusted, and the daughter boards with different shapes can be combined to form the lifting of the daughter boards;
3. the device adopts a pure mechanical structure, does not have a circuit and the like, has high reliability and is easy to realize;
4. the lifting can be realized by operating the ratchet wheel handle with a single hand, and the operation is easier and simpler.
Drawings
FIG. 1 is a schematic diagram of a scalable adjustable mechanical lift apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a lifting body of an expandable adjustable mechanical lifting device of an embodiment of the present invention;
fig. 3 is a schematic view of a lifting process of the lifting body shown in fig. 1;
FIG. 4 is a schematic illustration of the linear supporting member and the linear base;
FIG. 5 is a schematic view of the connection of the linear support members to the pin;
FIG. 6 is a schematic diagram of the L-shaped support member and the L-shaped base;
FIG. 7 is a schematic diagram of the T-shaped support member and the linear base;
FIG. 8 is a schematic view of the ratchet handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 6, the mechanical lifting apparatus with expandable adjustment according to the embodiment of the present invention includes a lifting body 1, a ratchet handle 2, and a support frame 3.
The lifting main body 1 comprises a lifting seat 11, a base 12, a screw 13, a hinged plate 14 and two contraction blocks 15, wherein the lifting seat 11 and the base 12 are oppositely arranged, the screw 13 is positioned between the lifting seat 11 and the base 12, and the screw 13 is in threaded connection with the two contraction blocks 15.
The left side and the right side of the lifting seat 11 and the base 12 are respectively provided with four hinged plates 14, the upper ends of a first hinged plate and a second hinged plate in the four hinged plates 14 are hinged with the lifting seat 11, the lower ends of a third hinged plate and a fourth hinged plate in the four hinged plates 14 are hinged with the base 12, the lower end of the first hinged plate, the upper end of the third hinged plate are hinged with one shrinkage block 15, and the lower end of the second hinged plate, the upper end of the fourth hinged plate are hinged with the other shrinkage block 15. That is, eight hinge plates 14 are provided between the lifting base 11 and the base 12, four on each of the left and right sides. The first and second of the four hinge plates 14 are located above and the third and fourth hinge plates are located below, which form a scissor-type hinge member. In the embodiment, a spring 16 is connected between the lifting seat 11, the third hinge plate and the fourth hinge plate of the four hinge plates 14 on each side of the base 12 and the base 12, and the spring 16 can make the lifting easier.
The ratchet wheel handle 2 is arranged at the end part of the screw rod 13 and can drive the screw rod 13 to rotate, and when the screw rod 13 rotates, the two contraction blocks 15 move oppositely or move back to back, so that the lifting seat 11 is lifted relative to the base 12.
The supporting frame 3 comprises a plurality of linear supporting pieces 311 and four L-shaped supporting pieces 312 which are positioned on the upper layer, a plurality of linear bases 321 and four L-shaped bases 322 which are positioned on the lower layer, the plurality of linear supporting pieces 311 and the four L-shaped supporting pieces 312 form a frame shape, the plurality of linear supporting pieces 311 and the four L-shaped supporting pieces 312 are axially provided with inserting holes 301 for inserting the pin shafts 313, two adjacent linear supporting pieces 311 and four L-shaped supporting pieces 312 are inserted through the pin shafts 313, each linear supporting piece 311 is movably inserted with the linear base 321 in the vertical direction, each L-shaped supporting piece 312 is movably inserted with the L-shaped base 322 in the vertical direction, the lifting base 11 is horizontally fixed on any pin shaft 313, when the lifting base 11 is lifted relative to the base 12, the linear supports 311 and the L-shaped supports 312 on the upper layer are driven to lift relative to the linear bases 321 and the L-shaped bases 322 on the lower layer. The number of the plurality of linear supporters 311 may be determined according to the size of the daughter board to be lifted, and as long as the size of the frame is matched with the size of the daughter board, the upper frame 31 may contact the periphery of the daughter board.
As shown in fig. 7, in some application scenarios, in order to provide support for the middle portion of the daughter board, the supporting frame 3 further includes a plurality of T-shaped supporting members 314 located at the upper layer, the plurality of T-shaped supporting members 314 are provided with insertion holes 301 along the axial direction, the plurality of linear supporting members 311, the plurality of T-shaped supporting members 314, and the four L-shaped supporting members 312 form a frame shape, and each T-shaped supporting member 314 is movably inserted into the linear base 321 in the vertical direction. The T-shaped support 314 may have three pins inserted therein, so that one more pin may be provided in the middle of the frame, thereby providing support for the middle of the daughter board.
The upper surfaces of the plurality of linear supporting members 311, the plurality of T-shaped supporting members 314, and the four L-shaped supporting members 312 are provided with a plurality of adjustment holes 300 penetrating through the insertion holes, and the pin shaft 313 is fixed by a pin (not shown) that can pass through the adjustment holes 300. The depth of the insertion of the pin shaft 313 into the insertion hole 301 can be adjusted by adjusting the hole 300 and the pin. Further, the end of the lifting base 11 is also provided with an insertion hole 301 for the pin 313 to pass through.
The ratchet handle 2 can be selected to rotate in one direction and then only in the selected direction, that is, the ratchet handle 2 can rotate in one direction. As shown in FIG. 8, the ratchet handle 2 includes a handle body 21, an adjustment key 22, a compression spring 23, a compression leg 24, a blocking plate 25, a catch 26, a ratchet 27, a seal housing 28 and a ratchet 29, wherein a receiving groove 211 is formed on one side of an end portion of the handle body 21, the blocking plate 25, the catch 26, the ratchet 27, the seal housing 29 and the ratchet 29 are located in the receiving groove 211, the ratchet 27 and the ratchet 29 are located between the blocking plate 25 and the seal housing 28, the ratchet 29 is located above the ratchet 27, the seal housing 28 is provided with a through hole 281, the ratchet 29 is provided with a square interface 291, the square interface 291 passes through the through hole 281, the seal housing 28 can seal the receiving groove 211, the catch 26 catches an end edge of the ratchet 29 away from the square interface 291 to fix the ratchet 29 in the receiving groove 211, an adjustment groove (not shown) communicating with the receiving groove 211 is formed on the other side of the end, The pressing column 24 is inserted into the mounting hole 221 in sequence, the end of the adjusting key 22 is inserted into the adjusting groove, and the pressing column 24 is pressed against the bottom of the ratchet 27, when the adjusting key 22 is shifted left and right, the relative position between the ratchet 27 and the ratchet 29 can be adjusted, and further the ratchet 29 can only rotate in one direction.
It should be noted that the present invention is not limited to the detachment of the daughter board, and in practical use, the present invention may be applied to other application scenarios where a small space is required for a small-sized lifting device, and such applications are also within the protection scope of the present invention.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (6)
1. An expandable and adjustable mechanical lifting device is characterized by comprising a lifting main body, a ratchet wheel handle and a supporting frame;
the lifting main body comprises a lifting seat, a base, a screw rod, hinged plates and contraction blocks, wherein the lifting seat and the base are arranged oppositely, the screw rod is positioned between the lifting seat and the base, the screw rod is in threaded connection with the two contraction blocks, the lifting seat and the left side and the right side of the base are respectively provided with four hinged plates, the upper ends of a first hinged plate and a second hinged plate in the four hinged plates are hinged with the lifting seat, the lower ends of a third hinged plate and a fourth hinged plate in the four hinged plates are hinged with the base, the lower end of the first hinged plate and the upper end of the third hinged plate are hinged with one contraction block, and the lower end of the second hinged plate and the upper end of the fourth hinged plate are hinged with the other contraction block;
the ratchet wheel handle is arranged at the end part of the screw rod and can drive the screw rod to rotate, and when the screw rod rotates, the two contraction blocks move oppositely or move backwards, so that the lifting seat is lifted relative to the base;
support frame is including a plurality of line type support piece and four L type support piece that are located the upper strata and a plurality of line type bases and four L type bases that are located the lower floor, a plurality of line type support piece and four L type support piece constitution frame shape, a plurality of line type support piece and four L type support piece are equipped with along the axial and supply the round pin axle male jack, and adjacent two peg graft through the round pin axle in a plurality of line type support piece and four L type support piece, each line type support piece pegs graft with line type base movably on vertical direction, each L type support piece pegs graft with L type base movably on vertical direction, lift the seat level is fixed at arbitrary round pin epaxially, works as when the relative base of lift seat goes up and down, drive the line type base and the L type base lift of the relative lower floor of line type support piece of upper strata and L type support piece.
2. The mechanical lift device of claim 1, wherein springs are connected between the third and fourth of the four hinged plates on each side of the lift seat and base and the base.
3. The mechanical lifting device of claim 1, wherein the supporting frame further comprises a plurality of T-shaped supporting members disposed at an upper layer, the plurality of T-shaped supporting members are axially provided with insertion holes, the plurality of linear supporting members, the plurality of T-shaped supporting members and the four L-shaped supporting members form a frame shape, and each T-shaped supporting member is movably inserted into the linear base in a vertical direction.
4. The mechanical lift device of claim 3, wherein the upper surfaces of the plurality of linear supports, the plurality of T-shaped supports, and the four L-shaped supports have a plurality of adjustment holes extending through the insertion holes, the pin shaft being secured by a pin that is capable of passing through the adjustment holes.
5. The mechanical lifting device of claim 1, wherein the end of the lifting seat is also provided with a socket for a pin to pass through.
6. The mechanical lifting device of claim 1, wherein the ratchet handle comprises a handle body, an adjusting key, a pressure spring, a pressure post, a baffle, a clip, a ratchet, a sealing shell and a ratchet, a receiving groove is formed in one side of the end of the handle body, the baffle, the clip, the ratchet, the sealing shell and the ratchet are located in the receiving groove, the ratchet and the ratchet are located between the baffle and the sealing shell, the ratchet is located above the ratchet, the sealing shell is provided with a through hole, the ratchet is provided with a square interface, the square interface penetrates through the through hole, the sealing shell can seal the receiving groove, the edge of the end, away from the square interface, of the ratchet of the clip is clamped, the ratchet is fixed in the receiving groove, an adjusting groove communicated with the receiving groove is formed in the other side of the end of the handle body, a mounting hole is formed in the end of the adjusting, The compression leg is inserted in the mounting hole in proper order, the tip of adjusting key inserts the adjustment tank, and the compression leg top is in the bottom of ratchet, when adjusting key stirs about, can adjust the relative position between ratchet and ratchet, and then makes the ratchet only can the unidirectional rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011101010.6A CN112174029A (en) | 2020-10-15 | 2020-10-15 | Mechanical lifting device capable of being adjusted in extensible mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011101010.6A CN112174029A (en) | 2020-10-15 | 2020-10-15 | Mechanical lifting device capable of being adjusted in extensible mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112174029A true CN112174029A (en) | 2021-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011101010.6A Pending CN112174029A (en) | 2020-10-15 | 2020-10-15 | Mechanical lifting device capable of being adjusted in extensible mode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112174029A (en) |
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| CN208413751U (en) * | 2018-06-04 | 2019-01-22 | 湖北中香农业科技股份有限公司 | A kind of adjustable seed processing indent separating bracket |
| CN111086661A (en) * | 2019-12-31 | 2020-05-01 | 航天科工空间工程发展有限公司 | Can dismantle space of combination formula and expand structure ground test device |
| CN210902187U (en) * | 2019-06-26 | 2020-07-03 | 山西东易园智能家居科技有限公司 | Bathroom cabinet body stable balance structure |
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| CN102273857A (en) * | 2011-05-03 | 2011-12-14 | 太仓市车中宝休闲用品有限公司 | Multipurpose showing shelf split by pressing connecting pipe connectors |
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| CN204722675U (en) * | 2015-06-09 | 2015-10-28 | 广州开林家具制造有限公司 | A kind of telescopic stand |
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| CN106088573A (en) * | 2016-07-13 | 2016-11-09 | 李长生 | A kind of assembled stretches mould bases |
| CN207100895U (en) * | 2017-02-24 | 2018-03-16 | 陈嘉乐 | A kind of sliceable desk |
| CN208413751U (en) * | 2018-06-04 | 2019-01-22 | 湖北中香农业科技股份有限公司 | A kind of adjustable seed processing indent separating bracket |
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Application publication date: 20210105 |