CN114408788B - Portable crane - Google Patents
Portable crane Download PDFInfo
- Publication number
- CN114408788B CN114408788B CN202111600652.5A CN202111600652A CN114408788B CN 114408788 B CN114408788 B CN 114408788B CN 202111600652 A CN202111600652 A CN 202111600652A CN 114408788 B CN114408788 B CN 114408788B
- Authority
- CN
- China
- Prior art keywords
- type hand
- adjusting screw
- guide rail
- cross beam
- jack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 7
- 239000003245 coal Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/12—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated comprising toggle levers
-
- 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
- B66F13/00—Common constructional features or accessories
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a portable crane, which comprises a support frame, wherein a scissor type hand-operated jack is arranged at the upper part of the support frame, two groups of hook chains for hooking guide rails are arranged on a top seat of the scissor type hand-operated jack, the scissor type hand-operated jack also comprises an adjusting screw rod at the middle part of the scissor type hand-operated jack and a handle matched with the adjusting screw rod, and the lifting method comprises the following steps: when the guide rail cannot be lifted, the support is arranged on two sides of the guide rail, the height of the scissor type hand-operated jack is reduced through the handle and the adjusting screw, the hook body of the hook chain is hooked on the guide rail and fixed, the height of the scissor type hand-operated jack is lifted through the handle and the adjusting screw, the hook chain is driven to pull up, the lifting of the guide rail is realized, the use is convenient, the operation is simple, the problem that the guide rail is difficult to lift up too deeply when the guide rail is removed is solved, and the labor intensity of workers is reduced.
Description
Technical Field
The invention relates to a portable crane, and belongs to the technical field of underground surface removing equipment.
Background
Coal is the most widely distributed fuel resource with the greatest reserves in the world; the coal industry is an industrial sector engaged in resource exploration, coal field development, coal mine production, coal storage and transportation, processing conversion and environmental protection; in the production process of underground coal mining, a large number of coal mine cars are required to be used for conveying and transferring coal, and the coal mine cars are on guide rails and are towed by locomotives or winches to walk. At present, when the underground working face is removed, part of the guide rail is deeper into the ground, and the guide rail is difficult to start manually.
Disclosure of Invention
According to the defects in the prior art, the technical problems to be solved by the invention are as follows: to solve one of the above problems, a portable crane is provided.
The portable crane provided by the invention is characterized in that: the hand jack comprises a supporting frame, a scissor type hand jack is installed on the upper portion of the supporting frame, two groups of hook chains for hooking guide rails are installed on a footstock of the scissor type hand jack, the scissor type hand jack further comprises an adjusting screw in the middle of the scissor type hand jack and a handle matched with the adjusting screw, and the lifting method is as follows: when the guide rail cannot be lifted, the support is arranged on two sides of the guide rail, the height of the scissor type hand-operated jack is reduced through the handle and the adjusting screw, the hook body of the hook chain is hooked on the guide rail and fixed, the height of the scissor type hand-operated jack is lifted through the handle and the adjusting screw, the hook chain is driven to be pulled up, and the lifting of the guide rail is achieved.
Preferably, the support frame comprises a rectangular frame, four corners of the rectangular frame are respectively provided with a vertical supporting leg, the rectangular frame is internally provided with a diagonal brace A and a diagonal brace B which are in cross connection, and the diagonal brace A and the diagonal brace B are respectively fixed at the four corners of the rectangular frame.
Preferably, the bottom plate of the scissor jack is welded and fixed at the intersection point of the inclined support A and the inclined support B.
Preferably, the rectangular frame is formed by splicing angle steel.
Preferably, the hook chain comprises a chain body connected with a top seat of the scissor jack, and the other end of the chain body is provided with a hook body.
Preferably, the support frame comprises a cross beam, the cross beam is a rectangular steel pipe, a left folding supporting leg is respectively arranged on two side surfaces of one end of the cross beam, a right folding supporting leg is respectively arranged on two side surfaces of the other end of the cross beam, a connecting seat is welded on a base of the scissor hand jack, the connecting seat is fixed at the middle part of the cross beam through bolts, and the length direction of an adjusting screw rod of the scissor hand jack is consistent with the length direction of the cross beam.
Preferably, the left folding supporting leg comprises a fixing plate and a steel plate supporting leg, the fixing plate is welded on the side face of the cross beam, an upper shaft seat and a lower shaft seat are arranged on the upper portion and the lower portion of the fixing plate, a pin shaft is arranged between the upper shaft seat and the lower shaft seat, an upper hinge plate and a lower hinge plate which are parallel to each other are connected to the upper end of the steel plate supporting leg, the upper hinge plate and the lower hinge plate are hinged to the pin shaft, the width between the upper shaft seat and the lower shaft seat is larger than the width between the upper hinge plate and the lower hinge plate, a spring pressing plate is coaxially arranged in the middle of the pin shaft, a tensioning spring is sleeved on the pin shaft, the upper end of the tensioning spring is abutted to the upper hinge plate, the lower end of the tensioning spring is abutted to the spring pressing plate, a hanging hole is formed in the upper portion of the steel plate supporting leg, and a left hanging hook and a right hanging hook which are matched with the hanging hole are arranged on the fixing plate.
Preferably, the right folding leg is identical in structure to the left folding leg.
Preferably, the connecting seat is a U-shaped connecting seat and is buckled on the upper part of the cross beam, bolt holes are formed in two side edges of the connecting seat, and the side plates are fixed on the side plates of the cross beam through bolts and the bolt holes.
Preferably, the method for unfolding the support frame comprises the following steps: the crossbeam is rectangular steel pipe, installs a left side folding leg on the one end both sides face of crossbeam respectively, installs a right side folding leg on the other end both sides face of crossbeam respectively, and two left side folding legs all can be expanded alone, through pressing the hinged plate downwards, goes up the hinged plate compression tensioning spring for right side articulates the hook and deviate from the articulates the hole, and rotatory steel sheet landing leg, makes left side articulates the hook and articulates on the hole, and the operation mode of left side folding leg and right side folding leg is the same.
Compared with the prior art, the invention has the following beneficial effects:
when the guide rail cannot be lifted, the support is arranged on two sides of the guide rail, the height of the scissor type hand-operated jack is reduced through the handle and the adjusting screw, the hook body of the hook chain is hooked on the guide rail and fixed, the height of the scissor type hand-operated jack is lifted through the handle and the adjusting screw, the hook chain is driven to be pulled up, the lifting of the guide rail is realized, the use is convenient, the operation is simple, the problem that the guide rail is difficult to lift out too deep into the ground when the surface is removed is solved, and the labor intensity of workers is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the present invention;
FIG. 3 is a schematic structural view of a support frame in a second embodiment;
FIG. 4 is a schematic structural view of a fixing plate in the second embodiment;
fig. 5 is a schematic structural view of the handle.
In the figure: 1. the support frame 1.1, the rectangular frame 1.2, the landing leg 1.3, the inclined support A1.4, the inclined support B2, the scissor type hand jack 3, the coupler chain 4, the cross beam 5, the left folding landing leg 5.1, the fixed plate 5.2, the upper shaft seat 5.3, the lower shaft seat 5.4, the pin shaft 5.5, the upper hinge plate 5.6, the lower hinge plate 5.7, the steel plate landing leg 5.8, the hanging hole 5.9, the left hanging hook 5.10, the right hanging hook 5.11, the tension spring 5.12, the spring pressing plate 6, the right folding landing leg 7 and the connecting seat.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
the present invention is further illustrated by the following examples, which are not intended to be limiting, but any modifications, equivalents, improvements, etc. within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Example 1
As shown in fig. 1 and 5, the portable crane comprises a supporting frame 1, a scissor hand jack 2 is installed on the upper portion of the supporting frame 1, two groups of hook chains 3 for hooking guide rails are installed on a top seat of the scissor hand jack 2, the scissor hand jack 2 further comprises an adjusting screw in the middle portion of the scissor hand jack and a handle matched with the adjusting screw, and the lifting method is as follows: when the guide rail cannot be lifted out, the support is arranged on two sides of the guide rail, the height of the scissor type hand-operated jack 2 is reduced through the handle and the adjusting screw, the hook body of the hook chain 3 is hooked on the guide rail and fixed, the height of the scissor type hand-operated jack 2 is lifted through the handle and the adjusting screw, the hook chain 3 is driven to be pulled up, and the lifting out of the guide rail is achieved.
In this embodiment, the supporting frame 1 includes a rectangular frame 1.1, four corners of the rectangular frame 1.1 are respectively provided with a vertical supporting leg 1.2, the rectangular frame 1.1 is provided with a diagonal brace a1.3 and a diagonal brace B1.4 which are connected in a cross manner, and the diagonal brace a1.3 and the diagonal brace B1.4 are respectively fixed at four corners of the rectangular frame 1.1; the bottom plate of the scissor type hand jack 2 is welded and fixed at the intersection point of the inclined support A1.3 and the inclined support B1.4; the rectangular frame 1.1 is formed by splicing angle steel; the hook chain 3 comprises a chain body connected with a top seat of the scissor type hand jack 2, and the other end of the chain body is provided with a hook body.
Example two
As shown in fig. 2-5, the supporting frame 1 comprises a cross beam 4, the cross beam 4 is a rectangular steel pipe, two left folding supporting legs 5 are respectively arranged on two side surfaces of one end of the cross beam 4, two right folding supporting legs 6 are respectively arranged on two side surfaces of the other end of the cross beam 4, a connecting seat 7 is welded on the base of the scissor jack 2, the connecting seat 7 is fixed in the middle of the cross beam 4 through bolts, and the length direction of an adjusting screw of the scissor jack 2 is consistent with the length direction of the cross beam 4; the left folding supporting leg 5 comprises a fixing plate 5.1 and a steel plate supporting leg 5.7, the fixing plate 5.1 is welded on the side face of the cross beam 4, an upper shaft seat 5.2 and a lower shaft seat 5.3 are arranged at the upper part and the lower part of the fixing plate 5.1, a pin shaft 5.4 is arranged between the upper shaft seat 5.2 and the lower shaft seat 5.3, an upper hinge plate 5.5 and a lower hinge plate 5.6 which are parallel to each other are connected at the upper end of the steel plate supporting leg 5.7, the upper hinge plate 5.5 and the lower hinge plate 5.6 are hinged on the pin shaft 5.4, the width between the upper shaft seat 5.2 and the lower shaft seat 5.3 is larger than the width between the upper hinge plate 5.5 and the lower hinge plate 5.6, a spring pressing plate 5.12 is coaxially arranged at the middle part of the pin shaft 5.4, a tensioning spring 5.11 is sleeved on the pin shaft 5.4, the upper end of the tensioning spring 5.11 is abutted on the upper hinge plate 5.12, a hanging hole 5.8 is formed in the upper part of the steel plate supporting leg 5.7, and the fixing plate 1 is provided with a hanging hole matched with the hanging hole of the right side of the hanging hook 5.10; the right folding supporting leg 6 and the left folding supporting leg 5 have the same structure; the connecting seat 7 is a U-shaped connecting seat and is buckled on the upper part of the cross beam 4, bolt holes are formed in two side edges of the connecting seat, and the side plates are fixed on the side plates of the cross beam 4 through screws and the bolt holes; the unfolding method of the support frame 1 comprises the following steps:
the cross beam 4 is a rectangular steel pipe, two left folding supporting legs 5 are respectively arranged on two side surfaces of one end of the cross beam 4, two right folding supporting legs 6 are respectively arranged on two side surfaces of the other end of the cross beam 4,
the two left folding supporting legs 5 can be independently unfolded, the upper hinge plate 5.5 is pressed downwards through the lower hinge plate 5.5, the upper hinge plate 5.5 compresses the tensioning spring 5.11, the right hanging hook 5.10 is separated from the hanging hole 5.8, the steel plate supporting legs 5.7 are rotated, the left hanging hook 5.9 is hung on the hanging hole 5.8, and the left folding supporting legs 5 and the right folding supporting legs 6 are identical in operation mode.
The foregoing has shown and described the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A portable crane, characterized by: the lifting device comprises a supporting frame (1), a shear type hand-operated jack (2) is arranged on the upper portion of the supporting frame (1), two groups of hook chains (3) for hooking guide rails are arranged on a top seat of the shear type hand-operated jack (2), the shear type hand-operated jack (2) further comprises an adjusting screw in the middle of the adjusting screw and a handle matched with the adjusting screw, and the lifting method comprises the following steps:
when the guide rail cannot be lifted out, the support is arranged on two sides of the guide rail, the height of the scissor type hand jack (2) is reduced through the handle and the adjusting screw, the hook body of the coupler chain (3) is hooked on the guide rail and fixed, the height of the scissor type hand jack (2) is lifted through the handle and the adjusting screw, the coupler chain (3) is driven to be pulled up, the lifting of the guide rail is realized, the support comprises a cross beam, the cross beam is a rectangular steel pipe, a left folding supporting leg is respectively arranged on two side surfaces of one end of the cross beam, a right folding supporting leg is respectively arranged on two side surfaces of the other end of the cross beam, a connecting seat is welded on the base of the scissor type hand jack, the connecting seat is fixed in the middle of the cross beam through a bolt, and the length direction of the adjusting screw of the scissor type hand jack is consistent with the length direction of the cross beam; the left folding support leg comprises a fixing plate and a steel plate support leg, wherein the fixing plate is welded on the side face of a cross beam, an upper shaft seat and a lower shaft seat are arranged on the upper portion and the lower portion of the fixing plate, a pin shaft is arranged between the upper shaft seat and the lower shaft seat, an upper hinge plate and a lower hinge plate which are parallel to each other are connected to the upper end of the steel plate support leg, the upper hinge plate and the lower hinge plate are hinged to the pin shaft, the width between the upper shaft seat and the lower shaft seat is larger than the width between the upper hinge plate and the lower hinge plate, a spring pressing plate is coaxially arranged in the middle of the pin shaft, a tensioning spring is sleeved on the pin shaft, the upper end of the tensioning spring is abutted to the upper hinge plate, the lower end of the tensioning spring is abutted to the spring pressing plate, a hanging hole is formed in the upper portion of the steel plate support leg, and the fixing plate is provided with a left hanging hook and a right hanging hook which are matched with the hanging hole.
2. The portable crane of claim 1, wherein: the support frame (1) comprises a rectangular frame (1.1), vertical supporting legs (1.2) are respectively arranged at four corners of the rectangular frame (1.1), inclined supports A (1.3) and inclined supports B (1.4) which are connected in a cross mode are arranged in the rectangular frame (1.1), and the inclined supports A (1.3) and the inclined supports B (1.4) are respectively fixed at four corners of the rectangular frame (1.1).
3. The portable crane of claim 2, wherein: the bottom plate of the scissor type hand jack (2) is welded and fixed at the crossing point of the inclined support A (1.3) and the inclined support B (1.4).
4. A portable crane according to claim 3, wherein: the rectangular frame (1.1) is formed by splicing angle steel.
5. The portable crane of claim 4, wherein: the hook chain (3) comprises a chain body connected with a top seat of the scissor hand jack (2), and a hook body is arranged at the other end of the chain body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111600652.5A CN114408788B (en) | 2021-12-24 | 2021-12-24 | Portable crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111600652.5A CN114408788B (en) | 2021-12-24 | 2021-12-24 | Portable crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114408788A CN114408788A (en) | 2022-04-29 |
| CN114408788B true CN114408788B (en) | 2024-03-26 |
Family
ID=81268989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111600652.5A Active CN114408788B (en) | 2021-12-24 | 2021-12-24 | Portable crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114408788B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262026Y (en) * | 1996-04-12 | 1997-09-10 | 黄俊杰 | Lever type manhole cover open and close device for man and hand |
| JPH1111887A (en) * | 1997-06-25 | 1999-01-19 | Akira Ishihara | Hang-up device |
| CN206767521U (en) * | 2017-05-05 | 2017-12-19 | 国家电网公司 | Assembling mobile cable well cover opening device |
| CN209291874U (en) * | 2018-08-22 | 2019-08-23 | 国网浙江省电力有限公司嘉兴供电公司 | A kind of distribution cable cover board boom hoisting |
| CN213976814U (en) * | 2020-11-28 | 2021-08-17 | 河南健士莱杰医疗科技有限公司 | Liquid storage barrel hoisting device |
-
2021
- 2021-12-24 CN CN202111600652.5A patent/CN114408788B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2262026Y (en) * | 1996-04-12 | 1997-09-10 | 黄俊杰 | Lever type manhole cover open and close device for man and hand |
| JPH1111887A (en) * | 1997-06-25 | 1999-01-19 | Akira Ishihara | Hang-up device |
| CN206767521U (en) * | 2017-05-05 | 2017-12-19 | 国家电网公司 | Assembling mobile cable well cover opening device |
| CN209291874U (en) * | 2018-08-22 | 2019-08-23 | 国网浙江省电力有限公司嘉兴供电公司 | A kind of distribution cable cover board boom hoisting |
| CN213976814U (en) * | 2020-11-28 | 2021-08-17 | 河南健士莱杰医疗科技有限公司 | Liquid storage barrel hoisting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114408788A (en) | 2022-04-29 |
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