CN110451421B - Hand-operated telescopic cylinder - Google Patents
Hand-operated telescopic cylinder Download PDFInfo
- Publication number
- CN110451421B CN110451421B CN201910887780.9A CN201910887780A CN110451421B CN 110451421 B CN110451421 B CN 110451421B CN 201910887780 A CN201910887780 A CN 201910887780A CN 110451421 B CN110451421 B CN 110451421B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- outer sleeve
- rod section
- crank
- telescopic cylinder
- 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.)
- Active
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 3
- 239000008358 core component Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 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
- B66F3/10—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated with telescopic sleeves
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a hand-operated telescopic cylinder, which comprises an outer sleeve and an inner core assembly which penetrates through the outer sleeve and is provided with a crank, wherein the top of the outer sleeve is provided with a positioning hole; the inner core assembly comprises an inner sleeve which is inserted into the outer sleeve and is provided with a nut part at the top, an axial guide groove is arranged on the outer wall of the inner sleeve, and an extension sleeve part extending out of the bottom of the outer sleeve is arranged on the inner sleeve; a screw rod is arranged in the inner sleeve, the screw rod is provided with a threaded rod section in threaded connection with the nut part and a positioning column connected with the threaded rod section and arranged in the outer sleeve, the positioning column is connected with a push rod section which extends out of a positioning hole of the outer sleeve and is connected with a crank, and a bearing is arranged on the push rod section between the positioning column and the top of the outer sleeve; the outer sleeve is provided with an anti-rotation bolt which penetrates through the pipe wall and stretches into the axial guide groove of the inner sleeve. Compared with the prior art, the invention can solve the problems of difficult maintenance and small strength load of the existing manual telescopic cylinder.
Description
Technical Field
The invention relates to the technical field of manufacturing of standby tools of snow removing equipment, in particular to a hand-operated telescopic cylinder arranged on a snow remover.
Background
The hand-operated telescopic cylinder is also called a hand-operated jack, and is a necessary tool on the snow remover; the existing hand-operated telescopic cylinder comprises an outer sleeve and an inner core assembly penetrating through the outer sleeve, and a crank is arranged at the top of the inner core assembly. The hand-operated telescopic cylinder has the following problems in the use process: 1. the existing inner core assembly has complex structure and difficult installation, so that the maintenance is inconvenient; 2. because the pipe wall of the outer sleeve is thin, and the outer sleeve is loose with the inner core assembly, axial and radial loads, namely small strength loads, are difficult to ensure under severe environments, the outer sleeve is required to be sleeved on the crank for shaking, and the use is inconvenient.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hand-operated telescopic cylinder convenient to use, so as to solve the problems of difficult maintenance and small strength load of the existing hand-operated telescopic cylinder.
The technical scheme adopted for solving the technical problems is as follows: the hand-operated telescopic cylinder comprises an outer sleeve and an inner core assembly which penetrates through the outer sleeve and is provided with a crank, wherein the top of the outer sleeve is provided with a positioning hole; the inner core assembly comprises an inner sleeve which is inserted into the outer sleeve and is provided with a nut part at the top, an axial guide groove is arranged on the outer wall of the inner sleeve, and an extending sleeve part extending out of the bottom of the outer sleeve is arranged on the inner sleeve; a screw rod is arranged in the inner sleeve, the screw rod is provided with a threaded rod section in threaded connection with the nut part and a positioning column connected with the threaded rod section and arranged in the outer sleeve, the positioning column is connected with a push rod section which extends out of a positioning hole of the outer sleeve and is connected with the crank, and a bearing is arranged on the push rod section between the positioning column and the top of the outer sleeve; the outer sleeve is provided with an anti-rotation bolt which penetrates through the pipe wall and stretches into the axial guide groove of the inner sleeve.
Among the above-mentioned hand telescopic cylinder technical scheme, more specific technical scheme can also be: the outer sleeve comprises an outer sleeve body and a plug welded at the top of the outer sleeve body, the positioning hole is formed in the plug, and the positioning hole is a central positioning round hole.
Further: the wall thickness of the outer barrel body is a round pipe with the thickness of 4.5-8 mm.
Further: the bearing is a thrust bearing.
Further: the crank comprises a crank sleeve sleeved at the end head of the ejector rod section, the crank sleeve is connected with the ejector rod section through a round head bolt which traverses the crank sleeve and the ejector rod section, and a rocker is arranged on the crank sleeve.
Further: and a copper pad is sleeved on the ejector rod section between the handle sleeve and the plug.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects: 1. because the inner core component of the hand-operated telescopic cylinder comprises the inner sleeve which is inserted in the outer sleeve, a screw rod is arranged in the inner sleeve and is in threaded connection with the nut part of the inner sleeve through a threaded rod section, and the ejector rod section connected with the positioning column extends outwards from the positioning hole at the top of the outer sleeve and is connected with the crank, the nut part of the inner sleeve can be accurately matched with the threaded rod section of the screw rod; meanwhile, as the outer wall of the inner sleeve is provided with an axial guide groove, the free expansion of the screw rod in the axial direction can be realized by shaking the crank; the bearing on the ejector rod section between the positioning column and the top of the outer sleeve ensures the strength of axial and radial loads in severe environments; the operation is convenient, the screw rod can be freely rotated and matched with the inner cylinder and the outer cylinder to realize the upper and lower free expansion through the crank without using an additional tool; in addition, an anti-rotation bolt is arranged between the inner sleeve and the outer sleeve for axial locking, so that the screw rod and the outer sleeve are ensured to rotate mutually; 2. the structure is simple, and the installation, the maintenance and the convenience are realized; 3. the wall thickness of the outer bobbin body is 4.5-8 mm, so that the strength required by the hand-operated telescopic tube is ensured.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Fig. 2 is an installation schematic of an embodiment of the present invention.
Fig. 3 is a schematic structural view of an outer sleeve according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of an inner sleeve according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of a screw according to an embodiment of the present invention.
Detailed Description
The invention is further described in detail below with reference to the attached drawing figures:
Example 1:
The hand-operated telescopic tube shown in fig. 1 and 2 comprises an outer tube 4 and an inner core assembly, wherein the inner core assembly penetrates through the top end of the outer tube and is provided with a crank 1, the top of the outer tube 4 of the embodiment is provided with a positioning hole, the outer tube 4 comprises an outer tube body 4-2 and a plug 4-1 welded at the top of the outer tube body 4-2, the positioning hole at the top of the outer tube 4 is formed in the plug 4-1, and the positioning hole is a central positioning round hole; the wall thickness of the outer cylinder pipe body 4-2 of the embodiment is 4.5 mm; as shown in fig. 3; the inner core assembly of the embodiment comprises an inner sleeve 6-2 which is inserted in an outer sleeve 4 and provided with a nut part 6-1 at the top, an axial guide groove is arranged on the outer pipe wall of the inner sleeve 6-2, and the inner sleeve 6-2 is provided with a sleeve part extending out of the bottom of a bobbin body 4-2 of the outer sleeve, as shown in fig. 4; a screw rod 5 is arranged in the inner sleeve 6-2, the screw rod 5 is provided with a threaded rod section 5-3 in threaded connection with a nut part 6-1 of the outer sleeve 4 and a positioning column 5-2 connected with the threaded rod section 5-3 and arranged in the outer sleeve body 4-2 of the outer sleeve 4, the positioning column 5-2 is connected with a push rod section 5-1 which extends out of a positioning hole on a plug 4-1 of the outer sleeve 4 and is connected with a crank 1, the crank 1 of the embodiment comprises a crank sleeve 1-1 sleeved at the end of the push rod section 5-1 of the screw rod 5, the crank sleeve 1-1 is connected with the push rod section 5-1 of the screw rod 5 through a round head bolt 1-2 which traverses through the side wall of the crank sleeve 1-1 and the push rod section 5-1 of the screw rod 5, a rocker is arranged on the crank sleeve 1-1, and a copper pad 2 is sleeved on the push rod section 5-1 between the crank sleeve 1-1 and the plug; a bearing 3 is sleeved on the ejector rod section between the positioning column 5-2 of the screw rod 5 and the top of the outer sleeve 4, namely, the bearing 3 is sleeved on the ejector rod section 5-1 between the positioning column 5-2 of the screw rod 5 and the plug 4-1 at the top of the outer sleeve 4, and the bearing 3 in the embodiment is a thrust bearing; an anti-rotation bolt 7 which penetrates through the pipe wall and extends into the axial guide groove of the inner sleeve 4 is arranged on the outer barrel body 4-2 of the outer sleeve 4.
Example 2:
the outer tube body 4-2 had a wall thickness of 8mm, and was otherwise identical to that of example 1.
Because the inner core component of the hand-operated telescopic cylinder comprises the inner sleeve which is inserted in the outer sleeve, a screw rod is arranged in the inner sleeve and is in threaded connection with the nut part of the inner sleeve through a threaded rod section, and the ejector rod section connected with the positioning column extends outwards from the positioning hole at the top of the outer sleeve and is connected with the crank, the nut part of the inner sleeve can be accurately matched with the threaded rod section of the screw rod; meanwhile, as the outer wall of the inner sleeve is provided with an axial guide groove, the free expansion of the screw rod in the axial direction can be realized by shaking the crank; the bearing on the ejector rod section between the positioning column and the top of the outer sleeve ensures the strength of axial and radial loads in severe environments; the operation is convenient, the screw rod can be freely rotated and matched with the inner cylinder and the outer cylinder to realize the upper and lower free expansion through the crank without using an additional tool; in addition, an anti-rotation bolt is arranged between the inner sleeve and the outer sleeve for axial locking, so that the screw rod and the outer sleeve are ensured to rotate mutually.
Claims (6)
1. The utility model provides a hand flexible section of thick bamboo, includes the outer tube and wears to adorn the inner core subassembly that is equipped with the crank of outer tube, its characterized in that: the top of the outer sleeve is provided with a positioning hole; the inner core assembly comprises an inner sleeve which is inserted into the outer sleeve and is provided with a nut part at the top, an axial guide groove is arranged on the outer wall of the inner sleeve, and an extending sleeve part extending out of the bottom of the outer sleeve is arranged on the inner sleeve; a screw rod is arranged in the inner sleeve, the screw rod is provided with a threaded rod section in threaded connection with the nut part and a positioning column connected with the threaded rod section and arranged in the outer sleeve, the positioning column is connected with a push rod section which extends out of a positioning hole of the outer sleeve and is connected with the crank, and a bearing is arranged on the push rod section between the positioning column and the top of the outer sleeve; the outer sleeve is provided with an anti-rotation bolt which penetrates through the pipe wall and stretches into the axial guide groove of the inner sleeve.
2. The hand operated telescopic cylinder according to claim 1, wherein: the outer sleeve comprises an outer sleeve body and a plug welded at the top of the outer sleeve body, the positioning hole is formed in the plug, and the positioning hole is a central positioning round hole.
3. The hand operated telescopic cylinder according to claim 2, wherein: the wall thickness of the outer barrel body is a round pipe with the thickness of 4.5-8 mm.
4. A hand operated telescopic cylinder according to claim 2 or 3, wherein: the bearing is a thrust bearing.
5. The hand operated telescopic cylinder according to claim 4, wherein: the crank comprises a crank sleeve sleeved at the end head of the ejector rod section, the crank sleeve is connected with the ejector rod section through a round head bolt which traverses the crank sleeve and the ejector rod section, and a rocker is arranged on the crank sleeve.
6. The hand operated telescopic cylinder according to claim 5, wherein: and a copper pad is sleeved on the ejector rod section between the handle sleeve and the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887780.9A CN110451421B (en) | 2019-09-19 | 2019-09-19 | Hand-operated telescopic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910887780.9A CN110451421B (en) | 2019-09-19 | 2019-09-19 | Hand-operated telescopic cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110451421A CN110451421A (en) | 2019-11-15 |
| CN110451421B true CN110451421B (en) | 2024-05-28 |
Family
ID=68492361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910887780.9A Active CN110451421B (en) | 2019-09-19 | 2019-09-19 | Hand-operated telescopic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110451421B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB851533A (en) * | 1957-04-27 | 1960-10-19 | John Burton | Improvements in or relating to adjustable struts |
| JPH078390U (en) * | 1992-11-19 | 1995-02-07 | 理研化機工業株式会社 | jack |
| JP2000017833A (en) * | 1998-06-30 | 2000-01-18 | Nikko Co Ltd | Long jack for framework scaffolding |
| US6280417B1 (en) * | 1999-02-23 | 2001-08-28 | Needberg Technologies, Inc. | Trocar |
| CN2659010Y (en) * | 2003-06-13 | 2004-11-24 | 华林 | Electrodynamic push rod |
| CN101220854A (en) * | 2008-01-24 | 2008-07-16 | 李芬 | Motor push rod |
| CN202063666U (en) * | 2011-04-07 | 2011-12-07 | 宁波大学 | Mechanical type quick jacking device |
| DE102013101083A1 (en) * | 2013-02-04 | 2014-08-07 | Yakita Metal Industry Co., Ltd. | Auxiliary tool for mounting shock absorber for reducing oscillation in e.g. motor car, has rotary element comprising screw hole with internal thread that is precisely fitted to inner pipe body and rotatably arranged at end section |
| CN206918591U (en) * | 2017-06-09 | 2018-01-23 | 深圳耀天齐技术服务有限公司 | A kind of hand-rail type supporting mechanism |
| CN208378304U (en) * | 2018-06-22 | 2019-01-15 | 杭州恒俊科技有限公司 | Heavy hand-operated square tube jack for trailer |
| CN210764109U (en) * | 2019-09-19 | 2020-06-16 | 中国重汽集团柳州运力科迪亚克机械有限责任公司 | Hand-operated telescopic cylinder |
-
2019
- 2019-09-19 CN CN201910887780.9A patent/CN110451421B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB851533A (en) * | 1957-04-27 | 1960-10-19 | John Burton | Improvements in or relating to adjustable struts |
| JPH078390U (en) * | 1992-11-19 | 1995-02-07 | 理研化機工業株式会社 | jack |
| JP2000017833A (en) * | 1998-06-30 | 2000-01-18 | Nikko Co Ltd | Long jack for framework scaffolding |
| US6280417B1 (en) * | 1999-02-23 | 2001-08-28 | Needberg Technologies, Inc. | Trocar |
| CN2659010Y (en) * | 2003-06-13 | 2004-11-24 | 华林 | Electrodynamic push rod |
| CN101220854A (en) * | 2008-01-24 | 2008-07-16 | 李芬 | Motor push rod |
| CN202063666U (en) * | 2011-04-07 | 2011-12-07 | 宁波大学 | Mechanical type quick jacking device |
| DE102013101083A1 (en) * | 2013-02-04 | 2014-08-07 | Yakita Metal Industry Co., Ltd. | Auxiliary tool for mounting shock absorber for reducing oscillation in e.g. motor car, has rotary element comprising screw hole with internal thread that is precisely fitted to inner pipe body and rotatably arranged at end section |
| CN206918591U (en) * | 2017-06-09 | 2018-01-23 | 深圳耀天齐技术服务有限公司 | A kind of hand-rail type supporting mechanism |
| CN208378304U (en) * | 2018-06-22 | 2019-01-15 | 杭州恒俊科技有限公司 | Heavy hand-operated square tube jack for trailer |
| CN210764109U (en) * | 2019-09-19 | 2020-06-16 | 中国重汽集团柳州运力科迪亚克机械有限责任公司 | Hand-operated telescopic cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110451421A (en) | 2019-11-15 |
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