CN212014830U - One-way self-locking table leg structure - Google Patents
One-way self-locking table leg structure Download PDFInfo
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- CN212014830U CN212014830U CN201922475651.7U CN201922475651U CN212014830U CN 212014830 U CN212014830 U CN 212014830U CN 201922475651 U CN201922475651 U CN 201922475651U CN 212014830 U CN212014830 U CN 212014830U
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- spring seat
- torsion spring
- seat
- nut fixing
- torsional spring
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Abstract
The utility model provides an one-way auto-lock table leg structure belongs to the technical field of lift table. A one-way self-locking table leg structure comprises a driving tube for external lifting, a driving structure, a lead screw nut fixing seat, a torsion spring seat and a torsion spring; the utility model discloses the junction of the driving tube that will be connected with the drive structure and the screw-nut fixing base is equipped with the torsional spring seat of taking the torsional spring, torsional spring seat and driving tube fixed connection, torsional spring seat and screw-nut fixing base swing joint, and the both ends of torsional spring are fixed in respectively on torsional spring seat and screw-nut fixing base, when making the driving tube drive the rotation of torsional spring seat, the torsional spring can do the shrink or open motion on the surface of torsional spring seat, make can exert the brake force to the torsional spring seat when the torsional spring contracts, realize one-way auto-lock, the reliability is high, simple structure, low in manufacturing cost, more do benefit to the use and the popularization of product; and the outer wall of the torsion spring seat is provided with a plurality of oil storage tanks, so that lubricating oil can be still provided when the torsion spring contracts, and the structural abrasion is prevented.
Description
Technical Field
The utility model relates to a technical field of lift table specifically is a table leg structure of one-way auto-lock.
Background
With the development of science and technology, as the height-adjustable lifting table, the lifting table can better adapt to the use requirements of users, and therefore, the lifting table is widely applied to the life of people.
At present, all install on the lift table in market and be used for spacing structure, prevent through limit structure that the lift table leg excessively goes up and down, however, current limit structure has the problem that the structure is complicated, manufacturing cost is high. In addition, the limit structure on the lifting table leg easily causes height locking failure in the using process to cause equipment damage. In addition, the lubricating structure on the existing limiting structure is difficult to guarantee continuous supply of lubricating oil after limiting, so that the limiting structure has the risk of easy abrasion after long-time use, and the normal use of the lifting table is influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a one-way self-locking table leg structure, a torsion spring seat is arranged between a screw nut fixing seat and a driving pipe, one end of the torsion spring seat is sleeved outside a driving rod and rotates along with the driving rod, the other end of the torsion spring seat is embedded in the screw nut fixing seat and can rotate in the screw nut fixing seat, in addition, the torsion spring seat is externally sleeved with a torsion spring, one end of the torsion spring is fixed on the torsion spring seat, the other end of the torsion spring is clamped in the screw nut fixing seat, so that when the torsion spring seat rotates along with the driving pipe along one direction, the screw nut fixing seat cannot rotate, the torsion spring can do contraction or expansion movement on the surface of the torsion spring seat, and when the torsion spring contracts, braking force can be applied to the torsion spring seat through the contraction of the torsion spring, the self-locking of the table leg, and simple structure, low in manufacturing cost more does benefit to popularization and application, and simultaneously, seted up a plurality of oil storage tanks on the outer wall of torsion spring seat, can prevent to cause the interference to lubricating oil when the torsional spring contracts, realized the continuous supply of lubricating oil, avoided the wearing and tearing problem, guaranteed the normal use of lift table.
The specific technical scheme is as follows:
the utility model provides a one-way auto-lock table leg structure, including going up and down with the driving tube, drive structure and screw-nut fixing base, have such characteristic, the structural one end that is connected with the driving tube of drive, the outside cover of the other end of driving tube is equipped with the torsion spring seat and fixes, and the one end swing joint of torsion spring seat can be rotatory on the screw-nut fixing base, and simultaneously, the torsion spring seat overcoat is equipped with the torsional spring, and the one end of torsional spring is fixed in on the torsion spring seat, the other end is fixed in on the screw-nut fixing base, and seted up a plurality of oil storage tanks.
The one-way self-locking table leg structure comprises a lead screw nut fixing seat, a torsion spring seat and a lead screw nut, wherein the lead screw nut fixing seat is provided with a circular mounting through hole, an annular caulking groove is formed in the inner wall of the mounting through hole at one end, connected with the torsion spring seat, of the lead screw nut fixing seat, an embedding hole is coaxially formed in the opening of the mounting through hole at one end, connected with the torsion spring seat, of the lead screw nut fixing seat, and a spacing block which is annular and protruding is arranged between the embedding.
In the one-way self-locking table leg structure, the outer wall of the opening at one end connected with the lead screw nut fixing seat is provided with the clamping hole.
In the above one-way self-locking table leg structure, the torsion spring seat is cylindrical, and one end of the torsion spring seat is provided with the blocking edge.
In the above one-way self-locking table leg structure, the other end of the torsion spring seat is provided with an annular connecting groove corresponding to the spacing block.
In the unidirectional self-locking table leg structure, the torsion spring seat is provided with the interval between the end faces of the connecting groove and the end where the connecting groove is located, and the torsion spring seat is clamped into the annular caulking groove at intervals.
In the above one-way self-locking table leg structure, the inner wall of the torsion spring seat is provided with the step, and one end of the driving pipe sleeve in the torsion spring seat is abutted against the step.
In the above one-way self-locking table leg structure, the torsion spring is sleeved on the torsion spring seat and is located between the blocking edge and the connecting groove, one end of the torsion spring is fixed on the blocking edge, and the other end of the torsion spring is clamped in the clamping hole.
In the above one-way self-locking table leg structure, the oil storage tank is arranged between the blocking edge and the connecting groove.
In the above one-way self-locking table leg structure, the inner wall of the torsion spring seat is provided with the raised positioning block, and the outer wall of one end of the driving pipe sleeved with the torsion spring seat is provided with the positioning groove corresponding to the positioning block.
The positive effects of the technical scheme are as follows:
the one-way self-locking table leg structure is characterized in that the torsion spring seat is arranged between the driving pipe and the lead screw nut fixing seat, one end of the torsion spring seat is sleeved outside the driving tube and rotates along with the driving tube, the other end of the torsion spring seat is embedded inside the lead screw nut fixing seat and can rotate on the lead screw nut fixing seat, meanwhile, a torsion spring is sleeved outside the torsion spring seat, and two ends of the torsion spring are respectively fixed on the torsion spring seat and the lead screw nut fixing seat, so that when the driving tube is required to rotate along one direction due to the lifting of the table legs, the driving tube drives the torsion spring seat connected with the torsion spring to rotate, so that the torsion spring contracts or expands on the surface of the torsion spring seat and exerts braking force on the torsion spring seat when contracting, therefore, the self-locking of the table leg structure is realized, the problem of excessive lifting of the table leg is prevented, the lifting reliability is improved, the structure is simple, the manufacturing cost is low, and the popularization and the application are facilitated; simultaneously, be provided with a plurality of oil storage tanks on the outer wall of torsion spring seat, realize the storage to lubricating oil through the oil storage tank, avoided disturbing the lubrication of lubricating oil when the torsional spring tightens up, avoided the wearing and tearing problem, guaranteed the normal use of lift table.
Drawings
FIG. 1 is a structural diagram of an embodiment of a one-way self-locking table leg structure of the present invention;
fig. 2 is a structural diagram of a torsion spring seat according to a preferred embodiment of the present invention;
fig. 3 is a structural diagram of a joint between a torsion spring seat and a lead screw nut fixing seat according to a preferred embodiment of the present invention.
In the drawings: 1. an external lifting column tube; 2. a lifting structure; 21. a drive tube; 22. an external lead screw; 23. an inner lead screw; 3. a drive structure; 4. a lead screw nut fixing seat; 41. mounting a through hole; 42. an annular caulking groove; 43. embedding holes; 44. a spacer block; 45. a position clamping hole; 5. a torsion spring seat; 51. blocking edges; 52. connecting grooves; 53. a step; 54. an oil storage tank; 55. positioning blocks; 6. a torsion spring.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following embodiments are specifically described with reference to fig. 1 to 3, but the following contents are not intended to limit the present invention.
FIG. 1 is a structural diagram of an embodiment of a one-way self-locking table leg structure of the present invention; fig. 2 is a structural diagram of a torsion spring seat according to a preferred embodiment of the present invention; fig. 3 is a structural diagram of a joint between a torsion spring seat and a lead screw nut fixing seat according to a preferred embodiment of the present invention. As shown in fig. 1, fig. 2 and fig. 3, the one-way self-locking table leg structure provided by this embodiment includes: outside lift column pipe 1, elevation structure 2, drive structure 3 and screw-nut fixing base 4, outside lift column pipe 1 are multistage telescopic tubular structure for outside lift column pipe can adapt to the change of lifting height, improves the adaptability. Simultaneously, the both ends of outside lift column pipe 1 are fixedly connected with drive structure 3 and screw-nut fixing base 4 respectively for, outside lift column pipe 1 is fixed knot structure, thereby provides the structure carrier for the rotation of elevation structure 2. Meanwhile, the lifting structure 2 is arranged in the external lifting column tube 1, and two ends of the lifting structure 2 are respectively connected with the driving structure 3 and the lead screw nut fixing seat 4, so that the lifting structure 2 can consume kinetic energy input by the driving structure 3, and can convert the kinetic energy into gravitational potential energy of the lifting structure 2 in the vertical direction, and the lifting of the table legs is facilitated. And, elevation structure 2 includes driving tube 21, outside lead screw 22 and inside lead screw 23 again, and outside lead screw 22 cover is located outside inside lead screw 23, and outside lead screw 22 is located to driving tube 21 cover for when driving tube 21 rotates along with drive structure 3, outside lead screw 22 and inside lead screw 23 can take place relative displacement with driving tube 21, thereby realize the elevating movement of table leg.
Specifically, one end of the driving tube 21 is connected to the driving structure 3, and the other end of the driving tube 21 is externally sleeved with the torsion spring seat 5 and fixed, so that when the driving tube 21 rotates, the torsion spring seat 5 can also rotate along with the driving tube 21. And one end of the torsion spring seat 5 is movably connected to the screw-nut fixing seat 4 and can rotate on the screw-nut fixing seat 4, so that the position of the torsion spring seat 5 relative to the screw-nut fixing seat 4 can be changed, meanwhile, the torsion spring 6 is sleeved outside the torsion spring seat 5, one end of the torsion spring 6 is fixed on the torsion spring seat, the other end is fixed on the screw-nut fixing seat 4, because the screw-nut fixing seat 4 is fixed outside the external lifting column tube 1 and cannot rotate, when the driving tube 21 rotates under the driving of the driving structure 3, the driving tube 21 drives the torsion spring seat 5 to rotate, so that the torsion spring 6 makes contraction or expansion movement on the torsion spring seat 5, and the torsion spring 6 can apply braking force to the torsion spring seat 5 when the torsion spring 6 contracts, thereby realizing unidirectional braking, namely realizing unidirectional self-locking of the lifting table leg structure, preventing the problem of excessive lifting and improving the reliability of lifting, and the structure is simple, the manufacturing cost is low, and the application and popularization of the product are facilitated. And, set up a plurality of oil storage tanks 54 on the outer wall of torsional spring seat 5 for lubricating oil on the outer wall of torsional spring seat 5 can be stored in oil storage tank 54, thereby avoided tightening up and the interference to the lubricating oil lubrication when extrudeing the outer wall of torsional spring seat 5 at torsional spring 6, guaranteed lubricated reliability and validity, thereby avoided the wearing and tearing problem, guaranteed the normal use of lift table.
More specifically, the screw nut fixing seat 4 is provided with a circular mounting through hole 41, so that the arrangement of the lifting structure 2 is facilitated. Meanwhile, an annular caulking groove 42 is formed in the inner wall of the mounting through hole 41 at one end of the lead screw nut fixing seat 4 connected with the torsion spring seat 5, an caulking hole 43 is coaxially arranged at the opening of the mounting through hole 41 at one end of the lead screw nut fixing seat 4 connected with the torsion spring seat 5, and a spacing block 44 protruding in an annular shape is arranged between the caulking hole 43 and the annular caulking groove 42, the subsequent connection with the torsion spring seat 5 is facilitated through the annular caulking groove 42, the torsion spring seat 5 can be ensured to rotate on the lead screw nut fixing seat 4, meanwhile, the limitation of the torsion spring seat 5 on the lead screw nut fixing seat 4 can be realized, the connection between the two is realized, the torsion spring seat 5 is prevented from being separated from the lead screw nut fixing seat 4, the structural stability is higher, and the design is more reasonable.
More specifically, screens hole 45 has been seted up to one end open-ended outer wall department is connected to screw-nut fixing base 4, and the opening part that just is located the one end of being connected with torsional spring seat 5 has seted up screens hole 45 on screw-nut fixing base 4's the wall body promptly, and screens hole 45 is along the radial setting of mounting through-hole 41, and screens hole 45 is located the opening part of screw-nut fixing base 4 and is provided with the opening equally, the one end that has made things convenient for torsional spring 6 is gone into in screens hole 45 from the opening inside callipers, realize the fixed of torsional spring 6 on screw-nut fixing base 4, thereby make when torsional spring seat 5 rotates, torsional spring 6 can contract or open, the auto-lock for the lift table leg has provided the structure.
More specifically, torsion spring seat 5 is the tube-shape setting, and one of them tip of torsion spring seat 5 is provided with keeps off along 51, be provided with the fender edge 51 of evagination on the outer wall of the border department of the end of torsion spring seat 5's one end promptly, can locate the limit structure behind on torsion spring seat 5 as torsional spring 6 cover through keeping off along 51, and simultaneously, also can make things convenient for the one end of torsional spring 6 to be fixed in on torsion spring seat 5, thereby when making torsion spring seat 5 rotate along a direction, torsion spring seat 5 can contract or open, realize the auto-lock of liftable table leg structure in single direction of rotation, structural design is more reasonable.
More specifically, annular spread groove 52 that corresponds with spacer 44 is seted up to the other end of torsional spring seat 5, and the annular spread groove 52 has been seted up on the outer wall that torsional spring seat 5 deviates from to be provided with the one end that keeps off along 51 promptly for when torsional spring seat 5 and screw-nut fixing base 4 are connected, spacer 44 on the screw-nut fixing base 4 can block into in the spread groove 52 of torsional spring seat 5, has realized the swing joint of screw-nut fixing base 4 and torsional spring seat 5.
More specifically, the torsion spring seat 5 is provided with a gap between the end faces of the connecting groove 52 and the end where the connecting groove is located, and when the torsion spring seat 5 is connected with the lead screw nut fixing seat 4, the gap is clamped into the annular caulking groove 42, so that the movable connection between the torsion spring seat 5 and the lead screw nut fixing seat 4 is realized, the rotation of the torsion spring seat 5 on the lead screw nut can be ensured, and a structural basis is provided for the contraction and the expansion of the subsequent torsion spring 6.
More specifically, be provided with step 53 on the inner wall of torsional spring seat 5, the one end that the drive tube 21 cover was located in torsional spring seat 5 supports and leans on step 53 for torsional spring seat 5 cup joints and can carry on spacingly through step 53 outside the drive tube 21 after, prevents to take place relative displacement between torsional spring seat 5 and the drive tube 21, improves the stability and the reliability of structure, and structural arrangement is more reasonable.
More specifically, the torsional spring 6 cover is located on the outer wall of torsional spring seat 5 and is located to keep off along 51 and spread groove 52 between, and the one end of torsional spring 6 is fixed in and keeps off along 51 on, the other end card of torsional spring 6 has gone into screens hole 45 in, the torsional spring 6 cover is located keeping off of torsional spring seat 5 along 51 and spread groove 52 on the surface between promptly, make when the driving tube 21 is followed along a direction rotation at torsional spring seat 5, torsional spring seat 5 can drive the one end rotation of torsional spring 6, thereby make torsional spring 6 can contract or open on the surface of torsional spring seat 5, make torsional spring 6 can apply or eliminate braking force to torsional spring seat 5, realize the auto-lock to the lift table leg and open, structural design is more reasonable.
More specifically, oil storage tank 54 sets up and keeps off between edge 51 and connecting groove 52, and is preferred, and oil storage tank 54 all arranges along the direction that keeps off edge 51 to connecting groove 52 for just being located the position homoenergetic that the cover was equipped with torsional spring 6 on torsional spring seat 5 and being covered by oil storage tank 54, further made things convenient for the shrink of torsional spring 6 on torsional spring seat 5 and opened, guaranteed the stable supply of oil in oil storage tank 54, structural design is more reasonable.
More specifically, be provided with bellied locating piece 55 on the inner wall of torsional spring seat 5, be provided with the constant head tank that corresponds with locating piece 55 on the outer wall of the one end that driving tube 21 and torsional spring seat cup jointed, make 5 cup joint back on driving tube 21 at torsional spring seat, can realize connection between them through locating piece 55 and constant head tank, thereby prevented the problem that relative displacement appears when driving tube 21 rotates, the synchronism of motion has been guaranteed, provide the structural basis for 6 shrink of torsional spring with opening, structural design is more reasonable.
The one-way self-locking table leg structure provided by the embodiment comprises an external lifting column tube 1, a lifting structure 2, a driving structure 3, a lead screw nut fixing seat 4, a torsion spring seat 5 and a torsion spring 6; the driving pipe 21 is connected to the driving structure 3, the torsion spring seat 5 is arranged at the joint of the driving pipe 21 and the screw nut fixing seat 4, the torsion spring seat 5 is sleeved outside the driving pipe 21 and fixedly connected with the driving pipe, the other end of the torsion spring seat 5 is movably connected to the screw nut fixing seat 4 and can rotate on the screw nut fixing seat 4, the torsion spring 6 is sleeved outside the torsion spring seat 5, and two ends of the torsion spring 6 are respectively fixed on the torsion spring seat 5 and the screw nut fixing seat 4, so that when the driving pipe 21 drives the torsion spring seat 5 to rotate, the torsion spring 6 can contract or stretch on the outer surface of the torsion spring seat 5, and when the torsion spring 6 contracts, the braking force can be applied to the torsion spring seat 5, so that unidirectional self-locking is realized, the reliability is high, the structure is simple, the manufacturing cost is low, and the use and popularization; and the outer wall of the torsion spring seat 5 is provided with a plurality of oil storage tanks 54, so that lubricating oil can be still provided when the torsion spring 6 contracts, the abrasion of the structure is prevented, and the normal lifting of the lifting table is ensured.
The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.
Claims (10)
1. The utility model provides an one-way auto-lock table leg structure, includes lift with driving tube, drive structure and screw-nut fixing base, its characterized in that, the structural one end that is connected with the driving tube of drive, the outside cover of the other end of driving tube is equipped with the spring seat and fixes, and the one end swing joint of spring seat in can on the screw-nut fixing base rotatory on the screw-nut fixing base, simultaneously, the spring seat overcoat is equipped with the torsional spring, just the one end of torsional spring is fixed in on the spring seat, the other end is fixed in on the screw-nut fixing base, just a plurality of oil storage tanks have been seted up on the outer wall of spring seat.
2. The one-way self-locking table leg structure as claimed in claim 1, wherein the screw nut fixing seat is provided with a circular mounting through hole, an annular caulking groove is formed in an inner wall of the mounting through hole at one end of the screw nut fixing seat connected with the torsion spring seat, an caulking hole is coaxially formed at an opening of the mounting through hole at one end of the screw nut fixing seat connected with the torsion spring seat, and a spacing block which is an annular protrusion is arranged between the caulking hole and the annular caulking groove.
3. A one-way self-locking table leg structure as claimed in claim 2, wherein the screw nut fixing seat is provided with a locking hole at an outer wall of the opening at one end thereof.
4. A one-way self-locking table leg structure as claimed in claim 3, wherein the torsion spring seat is cylindrical and a retaining edge is provided at one end of the torsion spring seat.
5. A one-way self-locking table leg structure as claimed in claim 4, wherein the other end of the torsion spring seat is provided with an annular connecting groove corresponding to the spacing block.
6. The one-way self-locking table leg structure as claimed in claim 5, wherein a space is provided between the connecting groove and the end surface of the end where the connecting groove is located on the torsion spring seat, and the space is clamped into the annular caulking groove.
7. A one-way self-locking table leg structure as claimed in claim 1, wherein a step is provided on the inner wall of the torsion spring seat, and one end of the driving pipe sleeve disposed in the torsion spring seat is abutted against the step.
8. The one-way self-locking table leg structure as claimed in claim 6, wherein the torsion spring is sleeved on the torsion spring seat and located between the blocking edge and the connecting groove, one end of the torsion spring is fixed on the blocking edge, and the other end of the torsion spring is clamped into the clamping hole.
9. The one-way self-locking leg structure of claim 5, wherein the oil storage groove is disposed between the blocking edge and the connecting groove.
10. The one-way self-locking table leg structure as claimed in claim 1, wherein a raised positioning block is provided on the inner wall of the torsion spring seat, and a positioning groove corresponding to the positioning block is provided on the outer wall of one end of the driving tube sleeved with the torsion spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922475651.7U CN212014830U (en) | 2019-12-31 | 2019-12-31 | One-way self-locking table leg structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922475651.7U CN212014830U (en) | 2019-12-31 | 2019-12-31 | One-way self-locking table leg structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212014830U true CN212014830U (en) | 2020-11-27 |
Family
ID=73481860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922475651.7U Active CN212014830U (en) | 2019-12-31 | 2019-12-31 | One-way self-locking table leg structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212014830U (en) |
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2019
- 2019-12-31 CN CN201922475651.7U patent/CN212014830U/en active Active
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