CN113803344A - Screw for fixing mesh net cover of impregnator and impregnator - Google Patents
Screw for fixing mesh net cover of impregnator and impregnator Download PDFInfo
- Publication number
- CN113803344A CN113803344A CN202010536451.2A CN202010536451A CN113803344A CN 113803344 A CN113803344 A CN 113803344A CN 202010536451 A CN202010536451 A CN 202010536451A CN 113803344 A CN113803344 A CN 113803344A
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- Prior art keywords
- screw
- section
- impregnator
- thread
- thread section
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 241000208125 Nicotiana Species 0.000 description 10
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000011089 carbon dioxide Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/002—Means for preventing rotation of screw-threaded elements
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
- A24B3/182—Puffing
- A24B3/185—Puffing by impregnating with a liquid and subsequently freezing and evaporating this liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
- F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
- F16B35/041—Specially-shaped shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The invention relates to the technical field of impregnators, in particular to a screw for fixing a mesh screen of an impregnator. Also relates to an impregnator comprising the screw. In the process of disassembling the grid and the mesh enclosure, when the nut at the outermost end on the second thread section of the screw (the nut positioned on one side of the mesh enclosure far away from the end cover) is unscrewed, the first thread section of the screw and the internal thread of the mounting hole on the end cover are always in a screwing and matching state, so that the phenomenon of screw following out can not be generated when the nut is unscrewed, the phenomena of fracture and looseness of the screw during secondary installation due to the following out are also avoided, and the production process quality and the production safety of the impregnator can be ensured.
Description
Technical Field
The invention relates to the technical field of impregnators, in particular to a screw rod for fixing a mesh net cover of an impregnator and an impregnator comprising the screw rod.
Background
The impregnator is a container for soaking cut tobacco in the cigarette cut tobacco production, and the principle is that liquid carbon dioxide is utilized to impregnate the cut tobacco in the impregnator, so that the liquid carbon dioxide is impregnated into the cut tobacco, then the carbon dioxide forms dry ice in the cut tobacco through decompression, and the dry ice cut tobacco is prepared so as to be sent into a sublimation device to be sublimated and expanded, thereby obtaining expanded cut tobacco. The impregnator is provided with a grid and a mesh enclosure on an end cover, the grid mainly plays a role in buffering, the impact of liquid carbon dioxide on the mesh enclosure and tobacco shreds can be reduced, and the tobacco shred breaking rate in tobacco shred production is reduced. The grid and the mesh enclosure are fixed on the end cover through screws, and nuts are screwed on the screws on two sides of the grid mesh enclosure to fix the grid mesh enclosure.
Among the prior art, a screw rod for fixing macerator net cover is full thread harness cord screw rod, in net cover dismouting maintenance, when unscrewing the nut in order to dismantle the net cover, can rotate out full thread harness cord screw rod together, make the screw rod follow out and break away from the macerator end cover, when installing once more, then need just can install full thread harness cord screw rod on the end cover of macerator through two nuts to the mode of twisting, the cracked phenomenon of afterbody produces owing to receive great shearing force of full thread harness cord screw rod in this in-process often takes place, and easy production when installing again after full thread harness cord screw rod follows out revolves the phenomenon of twisting not tightly, lead to producing the gap between macerator end cover and the net cover, this in the past produces the safety problem of production technology and equipment easily.
Disclosure of Invention
The invention aims to solve the technical problem of providing a screw rod for fixing a mesh screen of an impregnator and the impregnator comprising the screw rod, which can prevent the screw rod from following when a nut is unscrewed after a screen is disassembled, so as to overcome the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a fixed screw rod of using of steeping cell net cover, the screw rod is including the first screw thread section that is used for being connected with the end cover of steeping cell and the second screw thread section that is used for being connected with the nut that is located net and net cover both sides, and first screw thread section is equipped with first external screw thread, and the second screw thread section is equipped with the second external screw thread, and the direction of turning round of first external screw thread is opposite with the direction of turning round of second external screw thread.
Preferably, the screw further comprises a polished rod section connecting the first threaded section and the second threaded section.
Preferably, the first threaded section, the polished rod section and the second threaded section are coaxially arranged.
Preferably, the length of the first thread segments is less than the length of the second thread segments.
Preferably, one end of the second threaded section, which is far away from the first threaded section, is provided with a flat body section for clamping by the clamping member.
The impregnator comprises the impregnator mesh screen fixing screw rod.
Preferably, the screw rod further comprises an end cover, a grid, a mesh cover and two nuts, the first thread section of the screw rod is connected with the end cover, the two nuts are screwed on the second thread section of the screw rod, and the grid and the mesh cover are sleeved on the second thread section and clamped between the two nuts.
Compared with the prior art, the invention has the remarkable progress that:
according to the screw rod for fixing the mesh and mesh enclosure of the impregnator and the impregnator comprising the screw rod, the screw rod is provided with the first thread section and the second thread section, the rotating direction of the first external thread on the first thread section is opposite to that of the second external thread on the second thread section, and when the outermost nut (the nut positioned on one side of the mesh enclosure far away from the end cover) on the second thread section of the screw rod is unscrewed in the process of disassembling the mesh and the mesh enclosure, the first thread section of the screw rod and the internal thread of the mounting hole on the end cover are always in a screwing and matching state, so that the phenomenon of screw rod heel-out is avoided when the nut is unscrewed, the phenomena of fracture and looseness of the screw rod during secondary mounting due to the heel-out are avoided, and the production process quality and the production safety of the impregnator can be ensured.
Drawings
Fig. 1 is a schematic structural view of a screw for fixing a mesh net cover of an impregnator according to an embodiment of the present invention.
Fig. 2 is a schematic view of the assembly of the end cap, mesh and mesh enclosure of the infuser of an embodiment of the present invention.
Wherein the reference numerals are as follows:
1. screw 11, first screw thread section
12. Second threaded section 13, polished rod section
14. Flat body section 2, end cover
3. Grid 4, net cover
5. Nut
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1 and 2, an embodiment of a screw for fixing a mesh net cover of an impregnator according to the present invention is shown. The screw 1 of the present embodiment is used to fixedly mount the mesh 3 and the mesh 4 in the infuser to the end cap 2 of the infuser.
Referring to fig. 1, the screw 1 of the present embodiment includes a first screw section 11 and a second screw section 12. The first thread section 11 is provided with first external threads, the first thread section 11 is used for being connected with the end cover 2 of the impregnator, the end cover 2 is provided with a mounting hole with internal threads, the first external threads on the first thread section 11 are matched and connected with the internal threads of the mounting hole on the end cover 2, and the screw rod 1 is tightly connected with the end cover 2. The second thread section 12 is provided with a second external thread, the second thread section 12 is used for being in threaded connection with nuts 5 positioned on two sides of the grid 3 and the mesh enclosure 4, after the first thread section 11 of the screw 1 is connected to the end cover 2, one nut 5 can be firstly screwed on the second thread section 12 of the screw 1, then the grid 3 and the mesh enclosure 4 are sleeved on the second thread section 12, the other nut 5 is screwed on the second thread section 12, the two nuts 5 are screwed, the grid 3 and the mesh enclosure 4 are clamped and fixed on the second thread section 12 by the two nuts 5, and therefore the grid 3 and the mesh enclosure 4 are fixedly installed on the end cover 2 through the screw 1. In this embodiment, the direction of the first external threads on the first thread segments 11 is opposite to the direction of the second external threads on the second thread segments 12, for example, the first external threads on the first thread segments 11 may be left-handed threads, and the second external threads on the second thread segments 12 may be right-handed threads. Because the direction of rotation of the first external thread on the first thread section 11 is opposite to the direction of rotation of the second external thread on the second thread section 12, when the outermost nut 5 (the nut 5 positioned on one side of the mesh enclosure 4 far away from the end cover 2) on the second thread section 12 of the screw rod 1 is unscrewed in the process of disassembling the mesh 3 and the mesh enclosure 4, the first thread section 11 of the screw rod 1 and the internal thread of the mounting hole on the end cover 2 are always in the screwing and matching state, the phenomenon that the screw rod 1 is followed out can not be generated when the nut 5 is unscrewed, the phenomenon that the screw rod 1 is broken and loosened when being mounted again due to the following out can be avoided, and the production process quality and the production safety of the impregnator can be ensured.
Preferably, the screw 1 of the present embodiment further includes a polished rod section 13, and the polished rod section 13 connects the first thread section 11 and the second thread section 12, thereby forming a three-section positive and negative thread screw. The outer peripheral surface of polished rod section 13 is smooth surface, does not establish the external screw thread, sets up polished rod section 13 between first screw thread section 11 and second screw thread section 12, makes screw rod 1 have a section of polished rod section 13 of not establishing the external screw thread, is favorable to increasing the holistic intensity of screw rod 1 to the security performance of reinforcing steeping ware.
Preferably, in the present embodiment, the first threaded section 11, the polished rod section 13 and the second threaded section 12 of the screw 1 are coaxially arranged.
Preferably, in this embodiment, the length of the first thread segments 11 is smaller than the length of the second thread segments 12, which facilitates the fitting between the mesh 3 and the mesh enclosure 4 and the end cap 2 of the infuser.
Preferably, in the screw 1 of the present embodiment, an end of the second thread section 12 away from the first thread section 11 is provided with a flat section 14, and the flat section 14 is clamped by the clamping member. When the first thread section 11 of the screw 1 is screwed into the mounting hole of the end cap 2, the body section 14 of the screw 1 can be clamped by a clamping member (such as a wrench), so that the screw 1 can be conveniently and easily screwed into the mounting hole of the end cap 2, and the connection and fixation of the screw 1 and the end cap 2 can be completed. When the screw rod 1 and the end cover 2 are loosened due to misoperation of an operator in the dismounting process, the flat body section 14 on the screw rod 1 can be clamped by a clamping piece (such as a wrench) and the screw rod 1 is screwed down, so that the phenomenon that the screw rod 1 is followed out or loosened when the nut 5 is unscrewed can be completely avoided. In this embodiment, the flat body section 14 may be a rectangular boss extending from an end surface of the second thread section 12 far away from the first thread section 11, so as to facilitate the clamping of the clamping member.
Based on the screw 1, the present embodiment further provides an impregnator, and the impregnator of the present embodiment includes the screw 1 for fixing the mesh net cover of the impregnator of the present embodiment.
Referring to fig. 2, preferably, the impregnator of the present embodiment further includes an end cap 2, a mesh 3, a mesh enclosure 4 and two nuts 5, wherein the end cap 2 is provided with a mounting hole with an internal thread, a first external thread on a first thread section 11 of the screw 1 is in fit connection with the internal thread of the mounting hole on the end cap 2, the two nuts 5 are screwed on a second thread section 12 of the screw 1, and the mesh 3 and the mesh enclosure 4 are sleeved on the second thread section 12 and clamped between the two nuts 5. During installation, the first thread section 11 of the screw rod 1 is connected to the end cover 2, then one nut 5 is screwed on the second thread section 12 of the screw rod 1 in a sleeved mode, then the grid 3 and the mesh enclosure 4 are sleeved on the second thread section 12, the other nut 5 is screwed on the second thread section 12 in a sleeved mode, the two nuts 5 are screwed tightly, the grid 3 and the mesh enclosure 4 are clamped and fixed on the second thread section 12 through the two nuts 5, and therefore the grid 3 and the mesh enclosure 4 are fixedly installed on the end cover 2 through the screw rod 1. During disassembly, the outermost nut 5 (the nut 5 positioned on one side of the mesh enclosure 4 far away from the end cover 2) on the second thread section 12 of the screw rod 1 is unscrewed, and the nut 5 is taken down, so that the mesh 3 and the mesh enclosure 4 can be withdrawn from the second thread section 12 of the screw rod 1. When the outermost nut 5 on the second thread section 12 is unscrewed, because the screwing direction of the first external thread on the first thread section 11 is opposite to the screwing direction of the second external thread on the second thread section 12, the internal thread of the mounting hole on the first thread section 11 of the screw rod 1 and the end cover 2 is always in the screwing and matching state, so that the phenomenon that the screw rod 1 follows out can not be generated when the nut 5 is unscrewed, the phenomenon that the screw rod 1 is broken and loosened when being mounted again due to the following out is also avoided, and the production process quality and the production safety of the impregnator can be ensured.
In the impregnator of the embodiment, the grid 3 and the mesh enclosure 4 can be fixedly installed on the end cover 2 through four screws 1, each screw 1 is provided with two nuts 5, and correspondingly, the end cover 2 is provided with four installation holes with internal threads for being connected with the four screws 1 in a one-to-one correspondence manner. Preferably, the four mounting holes are evenly distributed in the circumferential direction of the end cover 2. Therefore, the reliability and stability of the installation and fixation of the grid 3 and the mesh enclosure 4 on the end cover 2 can be improved, and the working performance and the safety performance of the impregnator are ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a fixed screw rod of using of steeping cell net screen panel, characterized in that, screw rod (1) is including first screw thread section (11) that are used for being connected with end cover (2) of steeping cell and be used for second screw thread section (12) that are connected with nut (5) that are located net (3) and screen panel (4) both sides, first screw thread section (11) are equipped with first external screw thread, second screw thread section (12) are equipped with the second external screw thread, the soon of first external screw thread with the soon of second external screw thread is opposite.
2. The screw for fixing mesh screen of impregnator according to claim 1, characterized in that the screw (1) further comprises a polished rod section (13), the polished rod section (13) connecting the first threaded section (11) and the second threaded section (12).
3. The screw for fixing mesh screen of impregnator according to claim 2, wherein the first thread section (11), the polished rod section (13) and the second thread section (12) are coaxially arranged.
4. The macerator grid mesh cap fixation screw as claimed in claim 2, characterized in that the length of the first thread section (11) is smaller than the length of the second thread section (12).
5. The screw for fixing mesh screen of impregnator according to claim 1, characterized in that the end of the second thread section (12) far from the first thread section (11) is provided with a flat body section (14) for clamping by a clamping member.
6. An impregnator, characterized by comprising an impregnator mesh screen fixing screw (1) according to any one of claims 1 to 5.
7. The impregnator according to claim 6, further comprising an end cap (2), a mesh (3), a mesh cap (4) and two nuts (5), wherein the first threaded section (11) of the screw (1) is connected to the end cap (2), the two nuts (5) are screwed onto the second threaded section (12) of the screw (1), and the mesh (3) and the mesh cap (4) are sleeved on the second threaded section (12) and clamped between the two nuts (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010536451.2A CN113803344A (en) | 2020-06-12 | 2020-06-12 | Screw for fixing mesh net cover of impregnator and impregnator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010536451.2A CN113803344A (en) | 2020-06-12 | 2020-06-12 | Screw for fixing mesh net cover of impregnator and impregnator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113803344A true CN113803344A (en) | 2021-12-17 |
Family
ID=78892200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010536451.2A Pending CN113803344A (en) | 2020-06-12 | 2020-06-12 | Screw for fixing mesh net cover of impregnator and impregnator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113803344A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2023749A1 (en) * | 1968-11-20 | 1970-08-21 | Lamson & Sessions Co | |
| CN2508043Y (en) * | 2001-08-24 | 2002-08-28 | 石季尧 | Reverse self-locking self-tapping screw with two-way thread |
| CN101775905A (en) * | 2009-12-18 | 2010-07-14 | 广东浩和建筑有限公司 | Adjustable leveling guide rail and leveling method thereof |
| CN202722475U (en) * | 2012-08-16 | 2013-02-13 | 浙江中烟工业有限责任公司 | Macerator enabling dry ice expanded cut tobacco to be completely macerated |
| CN108814702A (en) * | 2018-04-16 | 2018-11-16 | 魏大平 | High-precision for orthopaedics fracture reduction operation locks bone nail certainly |
| CN208397098U (en) * | 2018-05-22 | 2019-01-18 | 蔚来汽车有限公司 | Studs and automobile with the studs |
| CN209539766U (en) * | 2018-11-08 | 2019-10-25 | 浙江鼎盛汽车紧固件有限公司 | A kind of wind power generation blade bolt |
-
2020
- 2020-06-12 CN CN202010536451.2A patent/CN113803344A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2023749A1 (en) * | 1968-11-20 | 1970-08-21 | Lamson & Sessions Co | |
| CN2508043Y (en) * | 2001-08-24 | 2002-08-28 | 石季尧 | Reverse self-locking self-tapping screw with two-way thread |
| CN101775905A (en) * | 2009-12-18 | 2010-07-14 | 广东浩和建筑有限公司 | Adjustable leveling guide rail and leveling method thereof |
| CN202722475U (en) * | 2012-08-16 | 2013-02-13 | 浙江中烟工业有限责任公司 | Macerator enabling dry ice expanded cut tobacco to be completely macerated |
| CN108814702A (en) * | 2018-04-16 | 2018-11-16 | 魏大平 | High-precision for orthopaedics fracture reduction operation locks bone nail certainly |
| CN208397098U (en) * | 2018-05-22 | 2019-01-18 | 蔚来汽车有限公司 | Studs and automobile with the studs |
| CN209539766U (en) * | 2018-11-08 | 2019-10-25 | 浙江鼎盛汽车紧固件有限公司 | A kind of wind power generation blade bolt |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20211217 |