CN211510882U

CN211510882U - Thimble assembly and lifting upright column applied by same

Info

Publication number: CN211510882U
Application number: CN201922087160.5U
Authority: CN
Inventors: 项乐宏; 蒋领辉; 马勤锋; 陶闽泉
Original assignee: Zhejiang Lege Intelligent Drive Technology Co ltd
Current assignee: Zhejiang Lege Intelligent Drive Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-09-18
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a sleeve pipe assembly and a lifting upright post applied to the same, which comprises a first sleeve pipe; the second sleeve is sleeved in the first sleeve; the sliding part is sleeved on the second sleeve and can slide in a reciprocating manner along the length direction of the second sleeve, and the sliding part is provided with a connecting part which is distributed along the circumferential direction of the sliding part, extends into the first sleeve and can be inserted into the first sleeve; the outer side wall of the connecting part of the sliding part is provided with a positioning part, and the positioning part is connected with the inner wall of the first sleeve and used for connecting the connecting part of the sliding part in the first sleeve. The sleeve assembly and the lifting upright post sleeve using the same have larger fit clearance, convenient assembly and small deformation of the sliding part.

Description

Thimble assembly and lifting upright column applied by same

Technical Field

The utility model relates to a lift table technical field, what specifically say is a thimble assembly and lift stand of using thereof.

Background

The lifting table is an office table with adjustable height, and the height can be adjusted according to the height, sitting posture and standing posture of a person. For example, a lifting table in the prior art generally comprises an electric lifting table and a manual lifting table, wherein the electric lifting table is driven by a motor to lift, and the manual lifting table is driven by a swing handle; the electric lifting table in the prior art generally comprises a table board, a base, a driving motor and a lifting upright post, wherein the upright post is composed of at least two sleeves which are nested with each other and slide relatively. Since the sleeves slide relative to each other with a certain amount of noise due to friction, a sliding member is provided between the two sleeves nested one inside the other to reduce the friction between the two sleeves and thus the frictional noise. The slide generally includes a first slide on the inner wall of the outer sleeve and a second slide on the outer wall of the inner sleeve; the first sliding part is of an annular structure and is connected to the inner wall of the sleeve, specifically, a plurality of notches are punched on the wall of the sleeve, an elastic clamping hook is arranged on the outer side wall of the first sliding part, and when the first sliding part is inserted into the inner wall of the outer sleeve, the clamping hook of the first sliding part is clamped at the notch of the wall of the sleeve, so that the first sliding part is limited on the inner wall of the sleeve; the second slider is a plurality of, all along inboard sheathed tube circumference joint on the sheathed tube lateral wall of inboard. The upright column is used for avoiding shaking generated when the sleeves stretch relatively, so that the fit clearance between the sleeves is small, the wall thickness of the sliding part is required to be thin, and the sliding part is easy to deform after being used for a long time due to the thin wall thickness of the sliding part, so that the sliding smoothness between the sleeves is influenced, and even noise is generated when the sleeves slide relatively; the fit clearance between the two sleeves is very small, so that the production precision of the sleeves is high, the production cost is increased, and the assembly is difficult due to the too small clearance; if the fit clearance between the sleeves is large, the wall thickness of the sliding member is required to be large, so that the sliding member is shrunk during injection molding to cause the surface of the sliding member to be unsmooth, thereby affecting smooth sliding between the sleeves.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome above prior art's defect, provide a large, the equipment convenience of fit clearance between the sleeve pipe, and the little sleeve pipe assembly of slider deflection.

The technical solution of the utility model is to provide a thimble assembly with following structure: it comprises

A first sleeve;

the second sleeve is sleeved in the first sleeve;

the sliding part is sleeved on the second sleeve and can slide in a reciprocating manner along the length direction of the second sleeve, and the sliding part is provided with a connecting part which is distributed along the circumferential direction of the sliding part, extends into the first sleeve and can be inserted into the first sleeve; the outer side wall of the connecting part of the sliding part is provided with a positioning part, and the positioning part is connected with the inner wall of the first sleeve and used for connecting the connecting part of the sliding part in the first sleeve.

Preferably, the positioning piece comprises a plurality of positioning pieces which are arranged relative to the connecting portion, a clamping groove is formed in one side wall, close to the connecting portion, of each positioning piece, the extending end of each connecting portion is clamped with the clamping groove in each positioning piece, and each positioning piece is fixedly connected with the first sleeve through a fastening piece.

Preferably, a convex positioning convex column is arranged on one side wall of each positioning sheet close to the connecting part, a positioning hole clamped with the positioning convex column correspondingly is arranged on the connecting part, and when the extending end of the connecting part is clamped with the clamping groove on the positioning sheet, the positioning convex column is clamped into the positioning hole.

Preferably, a convex clamping block is arranged on one side wall of the positioning plate close to the connecting part, an inserting block is arranged at the outer end of the clamping block, and the clamping groove is formed between the inner wall of the inserting block and one side wall of the positioning plate close to the connecting part; the extension of connecting portion is served and is equipped with the breach that supplies the fixture block joint, and is equipped with the slot that is linked together with the breach on the inner wall of connecting portion, the slot supply the inserted block to peg graft, when the breach joint on the extension of connecting portion was served on the fixture block on the spacer, the inserted block of fixture block outer end is pegged graft in the slot on connecting portion, and the lateral wall of inserted block is equal to the inner wall of connecting portion mutually.

Preferably, the positioning element is a positioning ring sleeved on the outer side wall of the connecting portion, a clamping groove is formed in the inner side wall of the positioning ring, the extending end of the connecting portion is clamped with the clamping groove in the positioning ring, and the positioning ring is fixedly connected with the first sleeve through a fastener.

Preferably, the positioning piece is two L-shaped positioning plates, the two L-shaped positioning plates are combined into a ring and sleeved on the outer side wall of the connecting portion, a clamping groove is formed in the inner side wall of each L-shaped positioning plate, the extending end of the connecting portion is clamped with the clamping grooves in the two L-shaped positioning plates respectively, and the two L-shaped positioning plates are fixedly connected with the first sleeve through fasteners.

Preferably, the outer circumferential wall of the first sleeve is provided with connecting holes corresponding to the positioning members, each connecting hole is internally connected with a connecting member, and the inner end of each connecting member is fixedly connected with the positioning member in the first sleeve.

Preferably, the outer side wall of the second sleeve is connected with sliding blocks distributed along the circumferential direction of the second sleeve, and the outer side wall of each sliding block is in sliding fit with the inner wall of the first sleeve.

After the structure more than adopting, the utility model discloses thimble assembly compares with prior art, has following advantage:

1. the connecting part of the sliding part of the sleeve assembly is provided with a positioning part which is connected with the inner wall of the first sleeve and is used for connecting the connecting part of the sliding part in the first sleeve; namely, when the sleeve assembly is assembled, the positioning piece is arranged on the connecting part of the sliding piece, and then the connecting part of the sliding piece is inserted into the first sleeve, so that the positioning piece is connected with the inner wall of the first sleeve, and the connecting part of the sliding piece is fixedly connected into the first sleeve; the utility model discloses at the setting element of the connecting portion outside wall mounting of slider, increased the wall thickness of the connecting portion of slider to make this slider be fit for the great condition in fit clearance between the sleeve pipe, the sheathed tube equipment of being convenient for, and slider and setting element independent shaping respectively, its shaping surface smoothness is higher, and the two cooperation is used the deflection that makes the slider to diminish, prolongs the life of slider.

2. The first sleeve and the second sleeve of the sleeve assembly can be round pipe fittings or square pipe fittings, taking the square pipe fittings as an example, the sliding piece is arranged into a square frame shape matched with the square pipe fittings, and the connecting part of the sliding piece is arranged in a square shape; the positioning piece has various implementation modes, when the positioning piece is a plurality of positioning pieces which are opposite to the connecting part, each positioning piece is provided with a clamping groove, and the clamping grooves can be used for clamping the extending end of the connecting part of the sliding piece; when the positioning piece is a positioning ring sleeved on the outer side wall of the connecting part, a clamping groove for clamping the extending end of the connecting part of the sliding part is formed in the inner side wall of the positioning ring; when the positioning piece is two L-shaped positioning plates, the two L-shaped positioning plates are combined into a ring and sleeved on the outer side wall of the connecting part, and a clamping groove for clamping the extending end of the connecting part of the sliding piece is arranged on the inner side wall of each L-shaped positioning plate; the positioning piece can be arranged as required, and the wall thickness of the connecting part is increased by the matching of the positioning piece and the connecting part of the sliding piece, so that the sliding piece is suitable for the condition that the matching gap between the sleeves is large.

3. The positioning convex column on the positioning sheet and the positioning hole on the connecting part are arranged, so that the positioning sheet and the sliding piece are matched tightly and connected more firmly and stably. In addition, the cooperation of the inserted block outside the draw-in groove and the slot on the connecting portion has further improved the cooperation compactness of spacer and slider, avoids taking place between spacer and the slider and rocks relatively, noise reduction when the sleeve pipe is flexible.

The utility model discloses a another technical solution is, provides a lift stand that has following structure: the vertical column comprises a vertical column body formed by sleeving at least two sleeves, the vertical column body can slide between the sleeves to realize lifting, and at least two adjacent sleeves in the vertical column body adopt the sleeve assemblies.

Preferably, the telescopic tube type.

After the structure more than adopting, the utility model discloses the lift stand compares with prior art, has following advantage: the lifting upright post adopts the structure of the sleeve pipe assembly, so that the assembly of the lifting upright post is simpler and more convenient, and the noise generated when the lifting upright post performs lifting action is lower; the deformation of the sliding part is reduced, so that the lifting stability of the lifting upright post is high, and the service life is long.

Drawings

Fig. 1 is a schematic structural view of the bushing assembly of the present invention.

Fig. 2 is a schematic view of a sliding member mounting structure of the bushing assembly of the present invention.

Fig. 3 is a schematic view of the connection structure of the sliding member and the positioning member of the bushing assembly according to the present invention.

Fig. 4 is a schematic view of a second sleeve structure of the present invention.

Fig. 5 is a schematic structural view of a positioning member of the bushing assembly according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of another embodiment of a positioning member of the bushing assembly of the present invention.

Fig. 7 is a schematic structural view of the lifting column of the present invention.

As shown in the figure:

1. the sliding block comprises a first sleeve, 100, a connecting hole, 2, a second sleeve, 3, a sliding piece, 300, a connecting part, 301, a positioning hole, 302, a notch, 303, a slot, 4, a positioning piece, 400, a positioning piece, 401, a clamping groove, 402, a positioning convex column, 403, a threaded hole, 404, a clamping block, 405, an insertion block, 406, a positioning ring, 407, an L-shaped positioning plate, 5, a connecting piece, 6, a sliding block, 7, a stand column body, 8 and a base.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 4;

the utility model relates to a sleeve pipe assembly, which comprises a first sleeve pipe 1; the second sleeve 2 is sleeved in the first sleeve 1; the first sleeve 1 and the second sleeve 2 may be a circular pipe, a square pipe or a polygonal pipe, and the square pipe is adopted in the embodiment.

The sliding part 3 is sleeved on the second sleeve 2 and can slide in a reciprocating manner along the length direction of the second sleeve 2, and the sliding part 3 is provided with a connecting part 300 which is distributed along the circumferential direction of the sliding part 3, extends into the first sleeve 1 and can be inserted into the first sleeve 1; the outer side wall of the connecting part 300 of the sliding part 3 is provided with a positioning part 4, and the positioning part 4 is connected with the inner wall of the first sleeve 1 and used for connecting the connecting part 300 of the sliding part 3 in the first sleeve 1. This slider is square frame shape slider, and the connecting portion of this slider are the board that four extend to first sleeve pipe 1 in, setting element 4 install on the lateral wall of connecting portion 300, the connection of setting element 4 and connecting portion 300 can be multiple structure, like grafting, joint, fastener fixed connection, bonding etc, the inner wall connection of setting element 4 and first sleeve pipe 1 can adopt pin, screw etc. to be connected, this embodiment adopts be equipped with on the outer circumferential wall of first sleeve pipe 1 with the corresponding connecting hole 100 of setting element 4, the connecting hole can be for taking internal screw thread connecting hole, be connected with connecting piece 5 in every connecting hole 100, the inner of connecting piece 5 and the screw hole 403 fixed connection on the setting element 4 in the first sleeve pipe 1, the connecting piece be one kind of pin, screw, pivot, rivet etc. That is, when the sleeve assembly is assembled, the positioning member 4 is mounted on the connecting portion 300 of the sliding member 3, and then the connecting portion 300 of the sliding member 3 is inserted into the first sleeve 1, so that the positioning member 4 is connected with the inner wall of the first sleeve 1 through the connecting member, and the connecting portion 300 of the sliding member 3 is fixedly connected into the first sleeve 1. The outer side wall of the second sleeve 2 is connected with sliding blocks 6 distributed along the circumferential direction of the second sleeve 2, and the outer side wall of each sliding block 6 is in sliding fit with the inner wall of the first sleeve 1. The utility model increases the wall thickness of the connecting part 300 of the sliding part 3 by the positioning part 4 arranged on the outer side wall of the connecting part 300 of the sliding part 3, thereby leading the sliding part 3 to be suitable for the condition that the fit clearance between the sleeves is larger and being convenient for the assembly of the sleeves; that is, in the case that the fitting gap between the sleeves is large, the wall thickness of the connecting portion 300 can be increased appropriately, so that the wall thickness of the connecting portion and the wall thickness of the positioning member are fitted to each other to adapt to the gap between the sleeves, and thus the sliding member having an increased wall thickness is not easily deformed in a long-term use.

See fig. 2-3; the positioning member 4 includes a plurality of positioning pieces 400 corresponding to the connecting portion 300, a slot 401 is disposed on a side wall of the positioning piece 400 close to the connecting portion 300, the extending end of the connecting portion 300 is connected with the slot 401 on the positioning piece 400, and each positioning piece 400 is fixedly connected with the first sleeve 1 through a connecting member 5 or a fastening member. A convex positioning convex column 402 is arranged on one side wall of each positioning plate 400 close to the connecting part 300, a positioning hole 301 which is correspondingly clamped with the positioning convex column 402 is arranged on the connecting part 300, and when the extending end of the connecting part 300 is clamped with the clamping groove 401 on the positioning plate 400, the positioning convex column 402 is clamped into the positioning hole 301. The two positioning studs 402 of the present embodiment are disposed on two sides of the center of the slot 401 or the connecting portion 300. A convex fixture block 404 is arranged on one side wall of the positioning plate 400 close to the connecting part 300, an insert block 405 is arranged at the outer end of the fixture block 404, and a clamping groove 401 is formed between the inner wall of the insert block 405 and one side wall of the positioning plate 400 close to the connecting part 300; the extension end of the connecting portion 300 is provided with a notch 302 for clamping the clamping block 404, the inner wall of the connecting portion 300 is provided with a slot 303 communicated with the notch 302, the slot 303 is provided with an insertion block 405 for insertion, when the notch 302 on the extension end of the connecting portion 300 is clamped on the clamping block 404 on the positioning plate 400, the insertion block 405 at the outer end of the clamping block 404 is inserted in the slot 303 on the connecting portion 300, and the outer side wall of the insertion block 405 is flush with the inner wall of the connecting portion 300.

The positioning member 4 may also be implemented as follows:

one embodiment of the positioning element 4: referring to fig. 5, the positioning element 4 is a positioning ring 406 sleeved on the outer side wall of the connecting portion 300, a clamping groove 401 is arranged on the inner side wall of the positioning ring 406, the extending end of the connecting portion 300 is clamped with the clamping groove 401 on the positioning ring 406, and the positioning ring 406 is fixedly connected with the first sleeve 1 through a fastener. Another embodiment of the positioning element 4: referring to fig. 6, the positioning element 4 is two L-shaped positioning plates 407, the two L-shaped positioning plates 407 are combined into a ring shape and sleeved on the outer side wall of the connecting portion 300, a clamping groove 401 is arranged on the inner side wall of each L-shaped positioning plate 407, the extending end of the connecting portion 300 is respectively clamped with the clamping grooves 401 on the two L-shaped positioning plates 407, and the two L-shaped positioning plates 407 are both fixedly connected with the first sleeve 1 through a fastening element.

As shown with reference to figure 7 of the drawings,

the utility model relates to a lifting column, it includes the stand body 7 of constituteing by two at least sleeve pipes cup joint each other, and stand body 7 realizes going up and down through sliding between the sleeve pipe, at least there are two adjacent sleeve pipes in the stand body 7 to adopt arbitrary technical scheme in the above-mentioned embodiment the sleeve pipe assembly. The lifting upright post further comprises a base 8 connected to one end of the upright post body 7, a driving motor is arranged in the base 8, a linear lifting mechanism is arranged in the upright post body 7, the driving motor is in transmission connection with the linear lifting mechanism, and the linear lifting mechanism is connected with the sleeve pipe assembly and used for driving the sleeve pipe assembly to expand or contract. This linear elevating system also calls lead screw elevating system, the utility model discloses do not do the detailed description, can refer to the lead screw elevating system in the publication number is CN 108741625A. The lifting upright post adopts the structure of the sleeve pipe assembly, so that the assembly of the lifting upright post is simpler and more convenient, and the noise generated when the lifting upright post performs lifting action is lower; the deformation of the sliding part is reduced, so that the lifting stability of the lifting upright post is high, and the service life is long.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, such as the number of the sleeves and the cross section of the sleeves, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A cannula assembly comprising

A first sleeve;

the second sleeve is sleeved in the first sleeve;

the sliding part is sleeved on the second sleeve and can slide in a reciprocating manner along the length direction of the second sleeve, and the sliding part is provided with a connecting part which is distributed along the circumferential direction of the sliding part, extends into the first sleeve and can be inserted into the first sleeve; the method is characterized in that:

the outer side wall of the connecting part of the sliding part is provided with a positioning part, and the positioning part is connected with the inner wall of the first sleeve and used for connecting the connecting part of the sliding part in the first sleeve.

2. A block of bushings according to claim 1, characterized in that: the setting element include a plurality of spacers that set up with connecting portion relatively, the spacer is equipped with a draw-in groove on being close to a lateral wall of connecting portion, the draw-in groove joint on extension end and the spacer of connecting portion, every spacer passes through fastener and first sleeve fixed connection.

3. A block of bushings according to claim 2, characterized in that: the side wall of each positioning plate, which is close to the connecting part, is provided with a convex positioning convex column, the connecting part is provided with a positioning hole which is correspondingly clamped with the positioning convex column, and when the extending end of the connecting part is clamped with the clamping groove on the positioning plate, the positioning convex column is clamped into the positioning hole.

4. A block of bushings according to claim 2, characterized in that: a convex clamping block is arranged on one side wall of the positioning plate close to the connecting part, an inserting block is arranged at the outer end of the clamping block, and a clamping groove is formed between the inner wall of the inserting block and one side wall of the positioning plate close to the connecting part; the extension of connecting portion is served and is equipped with the breach that supplies the fixture block joint, and is equipped with the slot that is linked together with the breach on the inner wall of connecting portion, the slot supply the inserted block to peg graft, when the breach joint on the extension of connecting portion was served on the fixture block on the spacer, the inserted block of fixture block outer end is pegged graft in the slot on connecting portion, and the lateral wall of inserted block is equal to the inner wall of connecting portion mutually.

5. A block of bushings according to claim 1, characterized in that: the setting element establish the holding ring on the connecting portion lateral wall for the cover, and be equipped with the draw-in groove on the inside wall of holding ring, the draw-in groove joint on extension end and the holding ring of connecting portion, the holding ring pass through fastener and first sleeve fixed connection.

6. A block of bushings according to claim 1, characterized in that: the locating piece be two L shape locating plates, two L shape locating plates make up into cyclic annular and overlap and establish on the lateral wall of connecting portion, be equipped with the draw-in groove on the inside wall of every L shape locating plate, the extension end of connecting portion respectively with the draw-in groove joint on two L shape locating plates, two L shape locating plates all through fastener and first sleeve fixed connection.

7. A block of bushings according to any of the claims 2-6, characterized in that: the outer circumferential wall of the first sleeve is provided with connecting holes corresponding to the positioning pieces, each connecting hole is internally connected with a connecting piece, and the inner end of each connecting piece is fixedly connected with the positioning piece in the first sleeve.

8. A block of bushings according to claim 1, characterized in that: the outer side wall of the second sleeve is connected with sliding blocks distributed along the circumferential direction of the second sleeve, and the outer side wall of each sliding block is in sliding fit with the inner wall of the first sleeve.

9. The utility model provides a lifting column, it includes the stand body of cup jointing the constitution each other by two at least sleeves, and the stand body passes through to slide between the sleeve pipe and realizes going up and down its characterized in that: the upright post body is provided with at least two adjacent sleeves, and the sleeve assembly as claimed in any one of claims 1 to 8 is adopted.

10. The lifting column of claim 9, wherein: the novel telescopic tube component is characterized by further comprising a base connected to one end of the stand column body, a driving motor is arranged in the base, a linear lifting mechanism is arranged in the stand column body, the driving motor is in transmission connection with the linear lifting mechanism, and the linear lifting mechanism is connected with the sleeve tube component and used for driving the sleeve tube component to expand or contract.