CN218390362U - Novel lifting sleeve - Google Patents
Novel lifting sleeve Download PDFInfo
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- CN218390362U CN218390362U CN202221539171.8U CN202221539171U CN218390362U CN 218390362 U CN218390362 U CN 218390362U CN 202221539171 U CN202221539171 U CN 202221539171U CN 218390362 U CN218390362 U CN 218390362U
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- piston rod
- outer sleeve
- air
- air inlet
- sleeve
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Abstract
A novel lifting sleeve, comprising: an outer sleeve; the piston rod is arranged in the outer sleeve, the axis of the piston rod is parallel to the axis of the outer sleeve, and the piston rod can slide in the outer sleeve in a reciprocating manner along the axis direction of the piston rod; under the state that the piston rod extends out of the outer sleeve at the extreme position, the rod section of the piston rod positioned in the outer sleeve is an internal rod section, and the rod section positioned outside the outer sleeve is an external rod section; an air inlet structure is arranged on the external rod section, an air outlet structure is arranged on the internal rod section, and an air path is communicated between the air inlet structure and the air outlet structure; an elastic sealing plug is arranged on the air inlet structure, and the sealing plug can be deformed under pressure and is used for providing an avoiding space for air inflation in the inflation process. The utility model discloses set up elastic sealing plug, can take place to warp when receiving exogenic action and form one and dodge the space and realize that the overcoat is intraductal to inflate. The utility model has the advantages of simple structure, simple inflation operation, no damage to the lifting sleeve structure and the like.
Description
Technical Field
The utility model belongs to the technical field of the lift seat is relevant, more specifically says, in particular to novel lifting sleeve.
Background
The seat is the instrument of taking that people daily production, life were used commonly, especially to the work of literary and vocational study, the clerk need sit on the seat for a long time and do official working, this just makes the seat not only have the function of taking alone, still should possess travelling comfort and convenience of use simultaneously.
To this end, a rotatable and liftable seat has been derived in the prior art, which comprises three parts, namely a base (generally provided with pulleys for sliding the seat), a seat body (for sitting), and a lifting sleeve (for lifting and rotating the seat body relative to the base). The lifting sleeve comprises an outer sleeve and a lifting shaft (also can be considered as a piston rod), the lifting shaft is assembled in the outer sleeve, a piston is arranged at the shaft end of the lifting shaft, and nitrogen with the same volume is injected into the outer sleeve and two sides of the piston, so that the air pressure of the lifting shaft can be lifted.
In the prior art, the production process of the lifting sleeve is as follows: after the parts are assembled, nitrogen is filled in the parts. The nitrogen gas was introduced as follows: a pressure device is used to apply a large pressure to the piston rod of the elevator shaft (the piston rod is deflected at a certain angle in the direction perpendicular to the axis of the piston rod), so that the seal (a seal structure arranged between the piston rod and the outer sleeve) is pressed and deformed to generate a gap, and nitrogen is injected into the outer sleeve through the gap.
In the inflation operation, because a very large action needs to be exerted on the piston rod to enable the inner sealing structure to deform, the inflation can be carried out, the inflation mode is difficult to operate, potential harm can be caused to the structure of the lifting sleeve, and the air tightness and the use safety of the lifting sleeve are reduced.
SUMMERY OF THE UTILITY MODEL
Technical problem (I)
In summary, how to solve the problem that the lifting sleeve damages the whole structure of the lifting sleeve in the inflation process in the prior art becomes a problem to be solved urgently by those skilled in the art.
(II) technical scheme
The utility model provides a novel lifting sleeve, this novel lifting sleeve includes:
an outer sleeve;
the piston rod is arranged in the outer sleeve, the axis of the piston rod is parallel to the axis of the outer sleeve, and the piston rod can slide in the outer sleeve in a reciprocating manner along the axis direction of the piston rod;
under the state that the piston rod extends outwards in the outer sleeve at the limit position, the rod section of the piston rod, which is positioned in the outer sleeve, is an internal rod section, and the rod section, which is positioned outside the outer sleeve, is an external rod section;
an air inlet structure is arranged on the external rod section, an air outlet structure is arranged on the internal rod section, and an air path is communicated between the air inlet structure and the air outlet structure;
the air inlet structure is provided with an elastic sealing plug which can deform under pressure and is used for providing an avoiding space for air inflation in the inflation process.
Preferably, in the novel lifting sleeve provided by the present invention, the air inlet structure is a long hole structure; the air outlet structure is a hole structure.
Preferably, in the novel lifting sleeve provided by the utility model, the surface of the piston rod is provided with an air guide groove body used for communicating the air inlet structure and the air outlet structure, the sealing plug is arranged in the air inlet structure and in the air guide groove body.
Preferably, in the novel lifting sleeve provided by the present invention, an air guide passage is formed between the air inlet structure and the air outlet structure as well as between the air guide groove body and the air outlet structure; at least two air guide passages are arranged on one piston rod.
Preferably, in the novel lifting sleeve provided by the utility model, all the air guide passages are arranged on the outer surface of the piston rod and surround the piston rod at equal intervals.
Preferably, in the novel lifting sleeve provided by the present invention, the piston rod is a metal piston rod; the piston rod is of an integrated structure.
Preferably, in the novel lifting sleeve provided by the present invention, the air inlet structure is a hole structure, and the air inlet structure is disposed on an outer side surface of the external rod section; the air outlet structure is of a hole structure and is arranged on the rod end of the built-in rod section; and a central pore channel coaxial with the piston rod is arranged on the piston rod and used for communicating the air inlet structure with the air outlet structure.
Preferably, in the novel lifting sleeve provided by the utility model, the sealing plug is a weather-resistant rubber sealing plug.
Preferably, in the novel lifting sleeve provided by the present invention, a compression spring is disposed between the sealing plug and the piston rod.
Preferably, in the novel lifting sleeve provided by the present invention, the outer sleeve is a metal outer sleeve; the outer sleeve is of an integrated structure.
(III) advantageous effects
The utility model provides a novel lifting sleeve, this novel lifting sleeve includes: an outer sleeve; the piston rod is arranged in the outer sleeve, the axis of the piston rod is parallel to the axis of the outer sleeve, and the piston rod can slide in the outer sleeve in a reciprocating manner along the axis direction of the piston rod; under the state that the piston rod extends out of the outer sleeve at the extreme position, the rod section of the piston rod positioned in the outer sleeve is an internal rod section, and the rod section positioned outside the outer sleeve is an external rod section; the external rod section is provided with an air inlet structure, the internal rod section is provided with an air outlet structure, and the air inlet structure is communicated with the air outlet structure through an air path; the elastic sealing plug is arranged on the air inlet structure, and the sealing plug can deform under pressure and is used for providing an avoiding space for air inflation in the inflation process. In the structural design, the utility model discloses set up inlet structure and the structure of giving vent to anger on the piston rod and set up the gas passage who realizes inlet structure and the structure intercommunication of giving vent to anger, elastic sealing plug has been set up on inlet structure, the sealing plug can take place to warp when receiving exogenic action, thereby form one and dodge the space and realize the interior gas charging operation of overcoat pipe, after the exogenic action disappears, the sealing plug resumes to warp, the inlet structure is stopped up in the shutoff, and simultaneously, overcoat pipe internal pressure can only push down the sealing plug on inlet structure, the gas tightness of sealing plug has further been improved. Through the structure design, the utility model has the advantages of simple structure aerifys easy operation, can not cause damage to the lifting sleeve structure.
Drawings
Fig. 1 is a schematic diagram of the structure of the novel lifting sleeve in the embodiment of the present invention.
In fig. 1, the correspondence between the component names and the reference numerals is:
the device comprises an outer sleeve 1, a piston rod 2, an air inlet structure 3, an air outlet structure 4 and a sealing plug 5.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
In addition, in the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description of the present invention and does not require that the present invention must be constructed and operated in a specific orientation, and thus, cannot be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
Referring to fig. 1, fig. 1 is a schematic diagram of a novel lifting sleeve according to an embodiment of the present invention.
The utility model provides a novel lifting sleeve the utility model discloses in, this novel lifting sleeve includes outer tube 1, and outer tube 1 is the utility model discloses a primary structure spare, outer tube 1 are the long straight pipe structure in general, are used for realizing the utility model discloses in the structure of other component member installations, also be the main bearing structure who loads nitrogen gas simultaneously. A piston rod 2 is installed in the outer sleeve 1, the axis of the piston rod 2 is parallel to the axis of the outer sleeve 1, and the piston rod 2 can slide in the outer sleeve 1 in a reciprocating mode along the axis direction of the piston rod. The piston rod 2 can make linear reciprocating motion in the outer sleeve 1 (namely make linear reciprocating motion along the axis of the piston rod under strong pressure in the outer sleeve 1), and after the lifting sleeve is assembled, no matter the piston rod 2 is in the extension limit state or the retraction limit state, one end of the piston rod 2 is always positioned outside the outer sleeve 1, and the other end of the piston rod 2 is always positioned inside the outer sleeve 1. Typically, the movement of the piston rod 2 in the outer sleeve 1 is with limits of movement (with an upper limit of movement and a lower limit of movement). For the purpose of structural description, defined herein are: in the extreme position state that the piston rod 2 extends outwards in the outer sleeve 1, the rod section of the piston rod 2 positioned in the outer sleeve 1 is an internal rod section, and the rod section positioned outside the outer sleeve 1 is an external rod section. The above "segmentation" of the piston rod 2 does not mean to separate a real segment of the piston rod 2, but rather to name a specific segment of the outer sleeve 1 for the convenience of structural description, and the piston rod 2 is designed by using a metal material integrally formed, wherein the metal material selected is preferably stainless steel.
In the prior art, after the lifting sleeve is assembled, the piston rod 2 is laterally pressed, so that the sealing structure in the outer sleeve 1 is deformed to leak a gap for inflation, the mode is complex in operation, and the lifting sleeve structure is easily damaged.
In order to solve the problem, the utility model discloses improve its structure based on current lifting sleeve: be provided with inlet structure 3 (inlet structure 3 specifically indicates hole or groove structure that can ventilate) on external pole section, be provided with the structure 4 of giving vent to anger (the structure 4 of giving vent to anger specifically indicates hole or groove structure that can ventilate) on built-in pole section, inlet structure 3 and give vent to anger between the structure 4 gas circuit intercommunication (the utility model discloses in realize inlet structure 3 and give vent to anger the structure of structure 4 gas circuit intercommunication can be the pore, also can be groove structure).
An elastic sealing plug 5 is arranged on the air inlet structure 3, the main function of the sealing plug 5 is to seal the air inlet structure 3, meanwhile, the sealing plug 5 can be deformed under pressure (the compression here refers to the pressure applied to the outside of the piston rod 2) to provide an avoiding space for air inflation in the inflation process, and meanwhile, the sealing plug 5 also has certain structural strength to bear a larger pressure action (the pressure action here refers to the pressure applied to the inside of the piston rod 2, and the pressure comes from the high-pressure nitrogen gas filled in the outer sleeve 1).
Specifically, the utility model discloses in, air inlet structure 3 is rectangular pore structure, and the structure of giving vent to anger 4 is pore structure (can be rectangular pore structure, also can be round hole structure). The air inlet structure 3 and the air outlet structure 4 are designed by a regular orifice structure so as to be convenient for machining.
An air guide groove body used for communicating the air inlet structure 3 with the air outlet structure 4 is arranged on the surface of the piston rod 2, and the sealing plug 5 is arranged in the air inlet structure 3 and the air guide groove body. In this embodiment, the air inlet structure 3 and the air outlet structure 4 both adopt a groove structure, and the air guide groove is communicated with the air inlet structure 3 and the air outlet structure 4 to form a complete air vent groove passage. And sealing plugs 5 are arranged in the air inlet structure 3 and part of the air guide groove body according to the extending limit position of the piston rod 2. The two sides and the bottom surface of the sealing plug 5 are completely contacted with the piston rod 2, and the sealing plug 5 is difficult to deform when being subjected to air pressure, so that the sealing performance is ensured. When the sealing plug 5 is subjected to external acting force, the sealing plug can deform (is easy to deform) towards the air outlet structure 4, so that an avoiding space is provided for inflation. By adopting the structure form, the following advantages are achieved: 1. the structure design is simple, the processing is convenient, the prior lifting sleeve does not need to be greatly improved, and only the piston rod 2 needs to be grooved; 2. the sealing plug 5 matched with the air inlet structure 3 is simple in structure and high in use reliability and sealing performance.
Based on the structure, the air inlet structure 3, the air outlet structure 4 and the corresponding air guide groove form an air guide passage, and at least two air guide passages are arranged on one piston rod 2, so that the inflation efficiency can be very high. Further, all the air guide passages are provided at the outer surface of the piston rod 2 and at equal intervals around the piston rod 2.
Specifically, the piston rod 2 is a metal piston rod (preferably stainless steel); the piston rod 2 is of an integrated structure.
In another embodiment of the present invention, the air inlet structure 3 is a hole structure (preferably, a circular hole structure), and the air inlet structure 3 is disposed on the outer side surface of the external rod section; the air outlet structure 4 is a hole structure (preferably a round hole structure), and the air outlet structure 4 is arranged on the rod end (the end face of the rod) of the built-in rod section; a central pore channel coaxial with the piston rod 2 is arranged on the piston rod for communicating the air inlet structure 3 with the air outlet structure 4. Further, a compression spring is arranged between the sealing plug 5 and the piston rod 2, so that the sealing plug 5 can be ensured to be smoothly rebounded to block the air inlet structure 3 after the air is completely inflated.
In particular, the sealing plug 5 is a weather-resistant rubber sealing plug.
Specifically, the outer sleeve 1 is a metal outer sleeve (preferably stainless steel); the outer sleeve 1 is of an integrated structure.
Therefore, the utility model provides a novel lifting sleeve, this novel lifting sleeve includes: an outer sleeve 1; the piston rod 2 is arranged in the outer sleeve 1, the axis of the piston rod 2 is parallel to the axis of the outer sleeve 1, and the piston rod 2 can slide in the outer sleeve 1 in a reciprocating manner along the axis direction; under the state that the piston rod 2 extends outwards in the outer sleeve 1 at the limit position, the rod section of the piston rod 2 positioned in the outer sleeve 1 is an internal rod section, and the rod section positioned outside the outer sleeve 1 is an external rod section; an air inlet structure 3 is arranged on the external rod section, an air outlet structure 4 is arranged on the internal rod section, and an air path is communicated between the air inlet structure 3 and the air outlet structure 4; an elastic sealing plug 5 is arranged on the air inlet structure 3, and the sealing plug 5 can be deformed under pressure to provide an avoiding space for air inflation in the inflation process. In the structural design, the utility model discloses set up inlet structure 3 and give vent to anger structure 4 and set up the gas passage who realizes inlet structure 3 and give vent to anger structure 4 intercommunication on piston rod 2, elastic sealing plug 5 has been set up on inlet structure 3, sealing plug 5 can take place to warp when receiving exogenic action, thereby form one and dodge the space and realize the interior gas filling operation of outer tube 1, after the exogenic action disappears, sealing plug 5 resumes to warp, the inlet structure 3 is plugged up in the packing, and simultaneously, 1 internal pressure of outer tube can only push down sealing plug 5 on inlet structure 3, the gas tightness of sealing plug 5 has further been improved. Through the structure design, the utility model has the advantages of simple structure aerifys easy operation, can not cause damage to the lifting sleeve structure.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (10)
1. A novel lifting sleeve, comprising:
an outer sleeve (1);
the piston rod (2) is arranged in the outer sleeve, the axis of the piston rod is parallel to the axis of the outer sleeve, and the piston rod can slide in the outer sleeve in a reciprocating manner along the axis direction of the piston rod;
under the state that the piston rod extends outwards in the outer sleeve at the limit position, the rod section of the piston rod, which is positioned in the outer sleeve, is an internal rod section, and the rod section, which is positioned outside the outer sleeve, is an external rod section;
an air inlet structure (3) is arranged on the external rod section, an air outlet structure (4) is arranged on the internal rod section, and an air passage is communicated between the air inlet structure and the air outlet structure;
an elastic sealing plug (5) is arranged on the air inlet structure, and the sealing plug can be deformed under pressure and is used for providing an avoiding space for air inflation in the inflation process.
2. The new lifting sleeve as claimed in claim 1,
the air inlet structure is a long-strip hole structure;
the structure of giving vent to anger is the pore structure.
3. The new lifting sleeve as claimed in claim 2,
an air guide groove body used for communicating the air inlet structure with the air outlet structure is arranged on the surface of the piston rod, and the sealing plug is arranged in the air inlet structure and the air guide groove body.
4. The new lifting sleeve as claimed in claim 3,
the air inlet structure, the air outlet structure and the corresponding air guide groove form an air guide passage;
at least two air guide passages are arranged on one piston rod.
5. The novel lifting sleeve according to claim 4,
all of the air guide passages are arranged on the outer surface of the piston rod and surround the piston rod at equal intervals.
6. A new lifting sleeve according to any one of claims 1 to 5,
the piston rod is a metal piston rod;
the piston rod is of an integrated structure.
7. The new lifting sleeve as claimed in claim 1,
the air inlet structure is of a hole structure and is arranged on the outer side surface of the external rod section;
the air outlet structure is of a hole structure and is arranged on the rod end of the built-in rod section;
and a central pore channel coaxial with the piston rod is arranged on the piston rod and used for communicating the air inlet structure with the air outlet structure.
8. The new lifting sleeve as claimed in claim 1,
the sealing plug is a weather-resistant rubber sealing plug.
9. The new lifting sleeve as claimed in claim 8,
and a compression spring is arranged between the sealing plug and the piston rod.
10. The new lifting sleeve as claimed in claim 1,
the outer sleeve is a metal outer sleeve;
the outer sleeve is of an integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539171.8U CN218390362U (en) | 2022-06-20 | 2022-06-20 | Novel lifting sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539171.8U CN218390362U (en) | 2022-06-20 | 2022-06-20 | Novel lifting sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218390362U true CN218390362U (en) | 2023-01-31 |
Family
ID=85010810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221539171.8U Active CN218390362U (en) | 2022-06-20 | 2022-06-20 | Novel lifting sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218390362U (en) |
-
2022
- 2022-06-20 CN CN202221539171.8U patent/CN218390362U/en active Active
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