CN114876921A - Transmission rod assembly and lifting table thereof - Google Patents
Transmission rod assembly and lifting table thereof Download PDFInfo
- Publication number
- CN114876921A CN114876921A CN202210327303.9A CN202210327303A CN114876921A CN 114876921 A CN114876921 A CN 114876921A CN 202210327303 A CN202210327303 A CN 202210327303A CN 114876921 A CN114876921 A CN 114876921A
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- CN
- China
- Prior art keywords
- transmission
- head
- positioning
- transmission head
- drive
- 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
- 230000005540 biological transmission Effects 0.000 title claims abstract description 166
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 230000008092 positive effect 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
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/14—Telescoping systems locking in intermediate non-discrete positions
- F16B7/149—Telescoping systems locking in intermediate non-discrete positions with a sleeve or ring having a tapered or conical surface
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B13/00—Details of tables or desks
- A47B13/02—Underframes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B9/00—Tables with tops of variable height
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The invention discloses a transmission rod assembly and a lifting table thereof, comprising: the positioning device comprises a first transmission head, a second transmission head and an elastic piece, wherein a plurality of positioning grooves are formed in the first transmission head along the circumferential direction of the first transmission head, at least one first inclined plane is arranged on each positioning groove, a plurality of positioning blocks are arranged in the second transmission head along the circumferential direction of the second transmission head, at least one second inclined plane is arranged on each positioning block, the elastic piece abuts against the first transmission head or the second transmission head, the second transmission head is axially limited and abutted against the first transmission head through the restoring force of the elastic piece, the first inclined plane abuts against the second inclined plane, and the positioning blocks are respectively matched with the positioning grooves in a positioning mode. The original screw structure is removed between the two transmission heads, the transmission head structure with inclination is adopted, the transmission head structure can automatically extend and push tightly under the action of the elastic piece, and the transmission head structure is more and more compact when being pressed, so that the installation is convenient.
Description
Technical Field
The invention relates to the technical field of lifting tables, in particular to a transmission rod assembly and a lifting table thereof.
Background
In the prior art, the transmission rod mechanism used on the lifting table is fixedly connected with parts such as a connector and a transmission rod through screw structures, needs to be fixed by means of tools such as a tool wrench, is difficult to install and long in installation time, and can loosen screws after being used for a long time, so that the transmission mechanism cannot be used.
Disclosure of Invention
Aiming at the problems of the existing transmission mechanism, the existing transmission rod assembly and the lifting table thereof are provided, the original screw structure is removed between the two transmission heads, the transmission head structure with inclination is adopted, the transmission rod assembly automatically extends and props tightly under the action of the elastic part, and the transmission rod assembly is more and more pressed and more tight and is convenient to install.
The specific technical scheme is as follows:
a transfer bar assembly comprising: the positioning device comprises a first transmission head, a second transmission head and an elastic piece, wherein a plurality of positioning grooves are formed in the first transmission head along the circumferential direction of the first transmission head, at least one first inclined plane is arranged on each positioning groove, a plurality of positioning blocks are arranged in the second transmission head along the circumferential direction of the second transmission head, at least one second inclined plane is arranged on each positioning block, the elastic piece abuts against the first transmission head or the second transmission head, the second transmission head is axially limited and abutted against the first transmission head through the restoring force of the elastic piece, the first inclined plane abuts against the second inclined plane, and the positioning blocks are respectively matched with the positioning grooves in a positioning mode.
In the above transmission rod assembly, both sides of the positioning groove are provided with the first inclined planes, both sides of the positioning block are provided with the second inclined planes, and when the second transmission head axially abuts against the first transmission head in a limiting manner, the first inclined planes abut against the second inclined planes.
The first transmission head is provided with a convex column, the positioning grooves are located on the periphery of the convex column, the second transmission head is provided with a groove, the positioning blocks are located on the periphery of the groove, and when the second transmission head is axially limited and abutted, the convex column is in positioning fit with the groove.
The above-mentioned drive rod assembly, wherein, still include: the first transmission rod is in transmission connection with the first transmission head, the second transmission rod is in transmission connection with the second transmission head, and the elastic piece is abutted between the second transmission head and the second transmission rod.
The above-mentioned drive rod assembly, wherein, still include: the second transmission head is in transmission connection with the sleeve, the sleeve is in transmission connection with the second transmission rod, and the elastic piece is arranged on the sleeve.
The above-mentioned drive rod subassembly, wherein, be equipped with the centre gripping subassembly on the sleeve pipe, the centre gripping subassembly includes: the locking cover is fixedly connected with the sleeve, the jacket is sleeved on the second transmission rod, the locking cover can be operably abutted against the outer wall of the jacket, and at least part of the jacket deforms, so that at least part of the inner diameter of the jacket is reduced, and the jacket clamps the second transmission rod.
In the above transmission rod assembly, the first transmission rod and the second transmission rod are both hexagonal transmission rods, the first transmission head is provided with a hexagonal slot, the jacket is internally provided with a hexagonal through groove, the first transmission rod is in plug-in fit with the hexagonal slot, the second transmission rod penetrates through the hexagonal through groove, the jacket is extruded and contracted through the lock cover, and the jacket is fixedly matched with the second transmission rod.
In the above-mentioned transmission rod assembly, one end of the jacket has a guide ring, the guide ring has a plurality of gaps, and the lock cover presses the guide ring so that the guide ring shrinks and clamps the second transmission rod.
In the above transmission rod assembly, the first transmission head is provided with a first cylindrical support table, the protruding column is arranged in the middle of the first cylindrical support table, the plurality of positioning grooves are located on the periphery of the first cylindrical support table, the second transmission head is provided with a second cylindrical support table, the groove is arranged in the middle of the second cylindrical support table, the plurality of positioning blocks are respectively arranged on the periphery of the second cylindrical support table, and the diameter of the first cylindrical support table is equal to that of the second cylindrical support table;
when the second transmission head is axially limited and abutted to the first transmission head, the positioning blocks are respectively inserted into the positioning grooves, the protruding columns are inserted into the grooves, the end parts of the protruding columns are limited and abutted to the bottoms of the grooves, the first inclined planes are limited and abutted to the second inclined planes, and the end parts of the positioning blocks are limited and abutted to the bottoms of the positioning grooves.
A lifting table, comprising the driving rod assembly as described above, further comprising: and the first transmission rod and the second transmission rod are both provided with transmission wheels, and the two support transmission mechanisms are respectively in transmission connection with the transmission wheels.
Compared with the prior art, the technical scheme has the positive effects that:
the original screw structure is removed between the two transmission heads, the transmission head structure with inclination is adopted, the transmission head structure can automatically extend and push tightly under the action of the elastic piece, and the transmission head structure is more and more compact when being pressed, so that the installation is convenient.
Drawings
FIG. 1 is a schematic view of an overall structure of a lifting table according to the present invention;
FIG. 2 is a schematic view of the overall structure of a lifting table according to the present invention;
FIG. 3 is an enlarged view of the elevating table of the present invention at A in FIG. 2;
FIG. 4 is a schematic view of the overall construction of a transfer bar assembly of the present invention;
FIG. 5 is an enlarged view of the transfer bar assembly of the present invention at B in FIG. 4;
FIG. 6 is an enlarged view of the transfer bar assembly of the present invention at C of FIG. 4;
FIG. 7 is a schematic view of a second drive head of a drive link assembly of the present invention;
FIG. 8 is a schematic view of a second drive head of a drive link assembly of the present invention;
FIG. 9 is a schematic view of a second drive head of a drive link assembly of the present invention;
FIG. 10 is a schematic view of a first drive head of a drive link assembly of the present invention;
FIG. 11 is a schematic view of a first drive head of a drive link assembly of the present invention;
FIG. 12 is a schematic view of a first drive head of a drive link assembly of the present invention;
FIG. 13 is a schematic view of the jacket structure of a transfer bar assembly of the present invention;
in the drawings: 1. a first drive head; 2. a second drive head; 3. an elastic member; 4. positioning a groove; 5. positioning blocks; 6. a first inclined surface; 7. a second inclined surface; 8. a convex column; 9. a groove; 10. a sleeve; 11. a first drive lever; 12. a second transmission rod; 13. a locking cover; 14. a jacket; 15. a hexagonal socket; 16. a hexagonal through groove; 17. a guide ring; 18. a gap; 19. a first cylindrical support table; 20. a second cylindrical support table; 21. a drive rod assembly; 22. a support transmission mechanism; 23. a driving wheel; 24. and a support piece.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic view of an overall structure of a lifting table of the present invention, fig. 2 is a schematic view of an overall structure of a lifting table of the present invention, fig. 3 is an enlarged view of a lifting table of the present invention at a position a in fig. 2, fig. 4 is a schematic view of an overall structure of a driving lever assembly of the present invention, fig. 5 is an enlarged view of a driving lever assembly of the present invention at a position B in fig. 4, fig. 6 is an enlarged view of a driving lever assembly of the present invention at a position C in fig. 4, fig. 7 is a schematic view of a second driving head of a driving lever assembly of the present invention, fig. 8 is a schematic view of a second driving head of a driving lever assembly of the present invention, fig. 9 is a schematic view of a structure of a second driving head of a driving lever assembly of the present invention, fig. 10 is a schematic view of a structure of a first driving head of a driving lever assembly of the present invention, fig. 11 is a schematic view of a structure of a first driving head of a driving lever assembly of the present invention, fig. 12 is a schematic view of a first driving head of a driving rod assembly according to the present invention, and fig. 13 is a schematic view of a jacket of the driving rod assembly according to the present invention, as shown in fig. 1 to 13, showing a driving rod assembly according to a preferred embodiment, including: the first transmission head 1, the second transmission head 2 and the elastic element 3, a plurality of positioning grooves 4 are arranged on the first transmission head 1 along the circumferential direction of the first transmission head, at least one first inclined surface 6 is arranged on each positioning groove 4, a plurality of positioning blocks 5 are arranged on the second transmission head 2 along the circumferential direction of the second transmission head, at least one second inclined surface 7 is arranged on each positioning block 5, the elastic element 3 abuts against the first transmission head 1 or the second transmission head 1, the second transmission head 2 is axially limited and abutted against the first transmission head 1 through the restoring force of the elastic element 3, the first inclined surface 6 abuts against the second inclined surface 7, and the positioning blocks 5 are respectively in positioning fit with the positioning grooves 4.
Preferably, the elastic member 3 is a spring.
Further, as a preferred embodiment, both sides of the positioning groove 4 have first inclined surfaces 6, both sides of the positioning block 5 have second inclined surfaces 7, and when the second transmission head 2 is axially limited and abutted against the first transmission head 1, the first inclined surfaces 6 are abutted against the second inclined surfaces 7.
Furthermore, as a preferred embodiment, the first transmission head 1 has a convex column 8, the positioning grooves 4 are located on the periphery of the convex column 8, the second transmission head 2 has a groove 9, the positioning blocks 5 are located on the periphery of the groove 9, and when the second transmission head 2 is axially limited and abutted against the first transmission head 1, the convex column 8 is in positioning fit with the groove 9.
Further, as a preferred embodiment, the driving lever assembly 21 further includes: first transfer line 11 and second transfer line 12, first transfer line 11 is connected with first transmission head 1 transmission, and second transfer line 12 is connected with second transmission head 2 transmission, and elastic component 3 supports and locates between second transmission head 2 and second transfer line 12.
Further, as a preferred embodiment, the driving lever assembly 21 further includes: the sleeve 10, the second transmission head 2 and the sleeve 10 are in transmission connection, the sleeve 10 and the second transmission rod 2 are in transmission connection, and the elastic element 3 is arranged on the sleeve.
The above are merely preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the present invention, please refer to fig. 1 to 13, a clamping assembly is disposed on the casing 10, and the clamping assembly includes: the locking cover 13 and the jacket 14, the locking cover 13 is fixedly connected with the sleeve 10, the jacket 14 is sleeved on the second transmission rod 12, the locking cover 13 is operably abutted against the outer wall of the jacket, at least part of the jacket 14 is deformed, so that at least part of the inner diameter of the jacket 14 is reduced, and the jacket 14 clamps the second transmission rod 12.
Preferably, the locking cap 13 is threadedly coupled to the casing 10.
In a further embodiment of the present invention, the first transmission rod 11 and the second transmission rod 12 are both hexagonal transmission rods, the first transmission head 1 has a hexagonal socket 15, the jacket 10 has a hexagonal through-slot 16 therein, the first transmission rod 11 is in plug-in fit with the hexagonal socket 15, the second transmission rod 12 passes through the hexagonal through-slot 16, the jacket 10 is shrunk by the extrusion of the locking cover 13, and the jacket 10 is fixedly fitted with the second transmission rod 12.
In a further embodiment of the invention, the jacket 10 has a guide ring 17 at one end, the guide ring 17 has a plurality of gaps 18, and the lock cap 13 presses the guide ring 17 to shrink the guide ring 17 to clamp the second transmission rod 12.
In a further embodiment of the present invention, the first driving head 1 has a first cylindrical supporting platform 19, the protruding pillar 9 is disposed in the middle of the first cylindrical supporting platform 19, the plurality of positioning slots 4 are disposed on the periphery of the first cylindrical supporting platform 19, the second driving head 2 has a second cylindrical supporting platform 20, the groove 9 is disposed in the middle of the second cylindrical supporting platform 20, the plurality of positioning blocks 5 are disposed on the periphery of the second cylindrical supporting platform 20, and the diameter of the first cylindrical supporting platform 19 is equal to the diameter of the second cylindrical supporting platform 20.
In a further embodiment of the present invention, when the second transmission head 2 is axially limited and abutted against the first transmission head 1, the plurality of positioning blocks 5 are respectively inserted into the plurality of positioning grooves 4, the protruding column 9 is inserted into the groove 9, the end of the protruding column 9 is limited and abutted against the bottom of the groove 9, the first inclined surface 6 is limited and abutted against the second inclined surface 7, and the end of the positioning block 5 is limited and abutted against the bottom of the positioning groove 4.
The invention also shows a lifting table comprising a transmission rod assembly 21, further comprising: at least two supporting transmission mechanisms 22, the first transmission rod 11 and the second transmission rod 12 are respectively provided with a transmission wheel 23, and the two supporting transmission mechanisms 22 are respectively in transmission connection with the transmission wheels 23.
Preferably, the second transmission rod 12 is provided with a propping element 24, and the elastic element 3 props against the propping element 24.
The original screw structure is removed between the two transmission heads, the transmission head structure with inclination is adopted, the transmission head structure can automatically extend and push tightly under the action of the elastic part 3, and the transmission head structure is more and more compact when being pressed, so that the installation is convenient.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A transfer bar assembly, comprising: the positioning device comprises a first transmission head, a second transmission head and an elastic piece, wherein a plurality of positioning grooves are formed in the first transmission head along the circumferential direction of the first transmission head, at least one first inclined plane is arranged on each positioning groove, a plurality of positioning blocks are arranged in the second transmission head along the circumferential direction of the second transmission head, at least one second inclined plane is arranged on each positioning block, the elastic piece abuts against the first transmission head or the second transmission head, the second transmission head is axially limited and abutted against the first transmission head through the restoring force of the elastic piece, the first inclined plane abuts against the second inclined plane, and the positioning blocks are respectively matched with the positioning grooves in a positioning mode.
2. The drive rod assembly of claim 1, wherein said positioning slot has first inclined surfaces on opposite sides thereof, said positioning block has second inclined surfaces on opposite sides thereof, and said first inclined surfaces abut said second inclined surfaces when said second drive head is axially restrained against said first drive head.
3. The drive rod assembly of claim 2, wherein said first drive head has a projection, said positioning slots are disposed around said projection, said second drive head has a recess, said positioning blocks are disposed around said recess, and said projection is in positioning engagement with said recess when said second drive head is axially restrained against said first drive head.
4. The drive rod assembly of claim 3, further comprising: the first transmission rod is in transmission connection with the first transmission head, the second transmission rod is in transmission connection with the second transmission head, and the elastic piece is abutted between the second transmission head and the second transmission rod.
5. The drive rod assembly of claim 4, further comprising: the second transmission head is in transmission connection with the sleeve, the sleeve is in transmission connection with the second transmission rod, and the elastic piece is arranged on the sleeve.
6. The drive rod assembly of claim 5, wherein said sleeve has a clamping assembly thereon, said clamping assembly comprising: the locking cover is fixedly connected with the sleeve, the jacket is sleeved on the second transmission rod, the locking cover can be operably abutted against the outer wall of the jacket, and at least part of the jacket deforms, so that at least part of the inner diameter of the jacket is reduced, and the jacket clamps the second transmission rod.
7. The drive rod assembly according to claim 6, wherein the first drive rod and the second drive rod are both hexagonal drive rods, the first drive head has a hexagonal socket, the jacket has a hexagonal through-slot therein, the first drive rod is in plug fit with the hexagonal socket, the second drive rod passes through the hexagonal through-slot, the jacket is shrunk by the extrusion of the lock cover, and the jacket is fixedly fitted with the second drive rod.
8. The drive rod assembly of claim 7, wherein said collet has a guide ring at one end, said guide ring having a plurality of gaps therein, said locking cap compressing said guide ring to cause said guide ring to constrict and clamp said second drive rod.
9. The drive rod assembly according to claim 8, wherein said first driving head has a first cylindrical support table, said protruding post is disposed at a middle portion of said first cylindrical support table, said positioning slots are disposed at an outer periphery of said first cylindrical support table, said second driving head has a second cylindrical support table, said recess is disposed at a middle portion of said second cylindrical support table, said positioning blocks are disposed at a periphery of said second cylindrical support table, respectively, and a diameter of said first cylindrical support table is equal to a diameter of said second cylindrical support table;
when the second transmission head is axially limited and abutted to the first transmission head, the positioning blocks are respectively inserted into the positioning grooves, the protruding columns are inserted into the grooves, the end parts of the protruding columns are limited and abutted to the bottoms of the grooves, the first inclined planes are limited and abutted to the second inclined planes, and the end parts of the positioning blocks are limited and abutted to the bottoms of the positioning grooves.
10. A lifting table comprising a transfer bar assembly as claimed in any one of claims 4 to 9, further comprising: and the first transmission rod and the second transmission rod are both provided with transmission wheels, and the two support transmission mechanisms are respectively in transmission connection with the transmission wheels.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327303.9A CN114876921A (en) | 2022-03-30 | 2022-03-30 | Transmission rod assembly and lifting table thereof |
| US17/818,079 US11925265B2 (en) | 2022-03-30 | 2022-08-08 | Transmission rod assembly and a height-adjustable desk thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327303.9A CN114876921A (en) | 2022-03-30 | 2022-03-30 | Transmission rod assembly and lifting table thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114876921A true CN114876921A (en) | 2022-08-09 |
Family
ID=82669059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210327303.9A Pending CN114876921A (en) | 2022-03-30 | 2022-03-30 | Transmission rod assembly and lifting table thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114876921A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203868058U (en) * | 2014-05-26 | 2014-10-08 | 温州市比萨列自动化机械有限公司 | Manual lifting mast |
| CN106641148A (en) * | 2017-01-10 | 2017-05-10 | 浙江捷昌线性驱动科技股份有限公司 | Drive assembly and elevating column |
| CN209017983U (en) * | 2018-08-28 | 2019-06-25 | 乐歌人体工学科技股份有限公司 | Transmission bar assembly in the lifting device of same table |
| CN209251922U (en) * | 2018-06-28 | 2019-08-16 | 浙江乐歌智能驱动科技有限公司 | Same table |
| CN210666367U (en) * | 2019-11-28 | 2020-06-02 | 珠海天威飞马打印耗材有限公司 | Processing box |
| CN211423450U (en) * | 2019-09-25 | 2020-09-04 | 厦门松霖科技股份有限公司 | Stepless lifting mechanism and stepless lifting faucet |
| CN112971342A (en) * | 2021-03-30 | 2021-06-18 | 浙江乐歌智能驱动科技有限公司 | Single-motor lifting table |
-
2022
- 2022-03-30 CN CN202210327303.9A patent/CN114876921A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203868058U (en) * | 2014-05-26 | 2014-10-08 | 温州市比萨列自动化机械有限公司 | Manual lifting mast |
| CN106641148A (en) * | 2017-01-10 | 2017-05-10 | 浙江捷昌线性驱动科技股份有限公司 | Drive assembly and elevating column |
| US20190360567A1 (en) * | 2017-01-10 | 2019-11-28 | Zhejiang Jiecang Linear Motion Technology Co., Ltd. | Transmission assembly and lifting column |
| CN209251922U (en) * | 2018-06-28 | 2019-08-16 | 浙江乐歌智能驱动科技有限公司 | Same table |
| CN209017983U (en) * | 2018-08-28 | 2019-06-25 | 乐歌人体工学科技股份有限公司 | Transmission bar assembly in the lifting device of same table |
| CN211423450U (en) * | 2019-09-25 | 2020-09-04 | 厦门松霖科技股份有限公司 | Stepless lifting mechanism and stepless lifting faucet |
| CN210666367U (en) * | 2019-11-28 | 2020-06-02 | 珠海天威飞马打印耗材有限公司 | Processing box |
| CN112971342A (en) * | 2021-03-30 | 2021-06-18 | 浙江乐歌智能驱动科技有限公司 | Single-motor lifting table |
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