CN209545351U - A kind of electric pushrod convenient for being replaced to sealing element - Google Patents
A kind of electric pushrod convenient for being replaced to sealing element Download PDFInfo
- Publication number
- CN209545351U CN209545351U CN201920446411.1U CN201920446411U CN209545351U CN 209545351 U CN209545351 U CN 209545351U CN 201920446411 U CN201920446411 U CN 201920446411U CN 209545351 U CN209545351 U CN 209545351U
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- sealing
- hole
- electric pushrod
- screw thread
- replaced
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Abstract
The utility model discloses a kind of electric pushrod convenient for being replaced to sealing element, belong to electric pushrod technical field, including the outer tube being mutually socketed and inner tube, one end of the outer tube is provided with end cap, the through-hole passed through for inner tube is provided on the end cap, the through-hole includes the sealing hole two that one end from end cap far from outer tube extends to one end close to outer tube and bore reduces one by one, sealing hole one and sealing hole three, the sealing hole three is connected to sealing hole one and forms the first cascaded surface in junction, the sealing hole one is connected with sealing hole two and forms the second cascaded surface in junction, it is equipped at the first cascaded surface in the sealing hole one for the first seal assembly to sealing hole one and the interior seal of tube.The sealing element of the electric pushrod front end of the utility model is by the way of detachable and interchangeable, when seal assembly is replaced, it can be carried out dismounting and change in end cap, convenient for the maintenance in later period.
Description
Technical field
The utility model relates to electric pushrod technical fields more particularly to a kind of electronic convenient for being replaced to sealing element
Push rod.
Background technique
In all kinds of electromechanical complete set of equipments and its automatic control device, electric pushrod is widely used as realization reciprocating sliding
It is required that Direct Travel actuator, wherein electric pushrod because have stationarity is good, running precision is high, the advantage of fast response time, obtain
To being widely applied.
Electric pushrod generally comprises outer tube and inner tube, and inner tube is reciprocatingly slided by executing structure driving in the inside of outer tube,
Electric pushrod needs to guarantee the precision of operation and the stationarity of inner components, needs using sealing elements pair such as oil sealing, dustbands
Gap between the inner tube and outer tube, end cap of telescopic rod is sealed, prevent lubricant grease from leaking out, extraneous moisture and impurity into
Enter, especially outdoors etc. in adverse circumstances, the requirement for sealing and dustproof waterproof is especially harsh.Sealing element tends to produce
Raw aging, is replaced, existing electric pushrod generally requires to tear open the entire front end of electric pushrod after long-time use
Sealing element therein could be dismantled after unloading, be not easy to replace sealing element.Therefore, it is necessary to one kind convenient for sealing
The electric pushrod that part is replaced is to meet prior art deficiency present in.
Utility model content
Purpose of the utility model is to solve the problems in background technique, and the one kind proposed be convenient for sealing element into
The electric pushrod of row replacement.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of electric pushrod convenient for being replaced to sealing element, including the outer tube being mutually socketed and inner tube, the outer tube
One end be provided with end cap, be provided with the through-hole passed through for inner tube on the end cap, the through-hole include from end cap far from
Sealing hole two, sealing hole one and the sealing hole three that one end of outer tube extends to one end close to outer tube and bore reduces one by one, institute
It states sealing hole three to be connected to sealing hole one and form the first cascaded surface in junction, the sealing hole one is connected with sealing hole two
And the second cascaded surface is formed in junction, it is equipped at the first cascaded surface in the sealing hole one for sealing hole one and inner tube
First seal assembly of sealing is equipped at the second cascaded surface in the sealing hole two for sealing hole two and the interior seal of tube
Second seal assembly, one end on the end cap far from outer tube are equipped with for stopping the first seal assembly and the second seal assembly
Outer tube through door and is stretched out in one end of door, said inner tube, and one end diameter that said inner tube stretches out outer tube is equal, said inner tube
The one end for stretching out outer tube is removably connected with the connection component for installation.
As preferred: first seal assembly includes sealing ring one and sealing ring two, and second seal assembly includes
Sealing ring three, the sealing ring one, sealing ring two are oil sealing, and the sealing ring three is dustband.
As preferred: the connection component includes being fixedly connected on outer tube to stretch out the attachment base of inner tube one end, detachably connect
The interconnecting piece for connecing the connecting rod on attachment base and being fixedly connected in connecting rod.
As preferred: being provided with the connecting hole for connecting with connecting rod on the attachment base, be arranged in the connecting rod
There is external screw thread one, is provided on the connecting hole and the mutually matched internal screw thread one of external screw thread one.
As preferred: the outside of the attachment base is provided with external screw thread two, is arranged on one end of said inner tube stretching outer tube
Have and is not more than the outer diameter of inner tube with the mutually matched internal screw thread two of external screw thread two, the outer diameter of the attachment base.
As preferred: the internal screw thread one and internal screw thread two it is oppositely oriented.
As preferred: being threaded with the connection spiral shell for adjusting connecting rod insertion connection hole depth in the connecting rod
It is female.
As preferred: the door is threaded on end cap.
As preferred: the outside of the end cap is provided with external screw thread three, is provided on the door mutual with external screw thread three
The internal screw thread three of cooperation.
As preferred: the interconnecting piece includes the mounting hole for installation.
Compared with prior art, utility model has the advantages that
By using above-mentioned technical proposal, the sealing element of electric pushrod front end is by the way of detachable and interchangeable, when first
When seal assembly, the second seal assembly are replaced, it can be subjected to dismounting and change in end cap, convenient for the dimension in later period
The replacement of shield and frangible seal part.
When replacement, first the connection component of inner tube one end is dismantled from inner tube, then the door on end cap is torn open from end cap
Unload, and be detached from from inner tube, then by inside sealing hole one, sealing hole two the first seal assembly and the second seal assembly take out,
Due to sealing hole two, the one end of sealing hole one and sealing hole three from end cap far from outer tube extends to one end close to outer tube and bore
Reduce one by one, the bore of sealing hole two expands compared to sealing hole one, and first in sealing hole one in sealing hole one is close
Sealing assembly can pass through from sealing hole two, be convenient for dismantling and assemble；After the completion of disassembly, by the need replacing first sealing
Component first covers on inner pipe, first seal assembly is installed the inside into sealing hole one by sealing hole 2, then will need replacing
The second seal assembly set on inner pipe, and the inside of sealing hole two is packed into, and door is mounted on end cap, by door to close
Sealing of hole two carries out lid conjunction, stops the first seal assembly of limitation and the second seal assembly；Finally connection component is connected to and needs to pacify
It is debugged and is run in the mechanical equipment of dress.
Detailed description of the invention
Fig. 1 is a kind of convenient for the structural schematic diagram for the electric pushrod replaced to sealing element of the utility model.
Fig. 2 is a kind of convenient for the partial structural diagram for the electric pushrod replaced to sealing element of the utility model.
Fig. 3 is a kind of convenient for the cross-sectional view for the electric pushrod replaced to sealing element of the utility model.
In figure: 1, outer tube；2, inner tube；3, end cap；4, sealing hole one；5, sealing hole two；6, sealing ring one；7, sealing ring
Two；8, sealing ring three；9, door；10, external screw thread three；11, internal screw thread three；12, attachment base；13, connecting hole；14, connecting rod；
15, interconnecting piece；16, attaching nut；17, sealing hole three.
Specific embodiment
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.
Referring to Fig.1-3, a kind of electric pushrod convenient for being replaced to sealing element, including the outer tube 1 that is mutually socketed and interior
Pipe 2, one end of the outer tube 1 are provided with end cap 3, the through-hole passed through for inner tube 2, the through-hole are provided on the end cap 3
Extend including one end from end cap 3 far from outer tube 1 to one end close to outer tube 1 and sealing hole 25, close that bore reduces one by one
Sealing of hole 1 and sealing hole 3 17, the sealing hole 3 17 are connected to sealing hole 1 and form the first cascaded surface, institute in junction
It states sealing hole 1 to be connected with sealing hole 25 and form the second cascaded surface in junction, the first rank in the sealing hole 1
The first seal assembly for sealing to sealing hole 1 and inner tube 2, the second ladder in the sealing hole 25 are equipped at tread
The second seal assembly for sealing to sealing hole 25 and inner tube 2 is equipped at face, one end far from outer tube 1 is set on the end cap 3
There is the door 9 for stopping the first seal assembly and the second seal assembly, one end of said inner tube 2 through door 9 and is stretched out outer
Pipe 1, one end diameter that said inner tube 2 stretches out outer tube 1 is equal, and one end that said inner tube 2 stretches out outer tube 1, which is removably connected with, to be used for
The connection component of installation.
By using above-mentioned technical proposal, the sealing element of electric pushrod front end is by the way of detachable and interchangeable, when first
When seal assembly, the second seal assembly are replaced, it can be subjected to dismounting and change in end cap 3, convenient for the later period
The replacement of maintenance and frangible seal part.
When replacement, first the connection component of 2 one end of inner tube is dismantled from inner tube 2, then by the door 9 on end cap 3 from end cap 3
Upper disassembly, and being detached from from inner tube 2, then by the first seal assembly and the second sealing group inside sealing hole 1, sealing hole 25
Part takes out, since sealing hole 25, the one end of sealing hole 1 and sealing hole 3 17 from end cap 3 far from outer tube 1 are to close to outer tube 1
One end extends and bore reduces one by one, and the bore of sealing hole 25 expands compared to sealing hole 1, the sealing in sealing hole 1
The first seal assembly in hole 1 can pass through from sealing hole 25, be convenient for dismantling and assemble；It, will after the completion of disassembly
The first seal assembly needed replacing first covers in inner tube 2, installs the first seal assembly into sealing hole one by sealing hole 25
4 inside, then the second seal assembly needed replacing is covered in inner tube 2, and be packed into the inside of sealing hole 25, and by door 9
It is mounted on end cap 3, door 9 is subjected to lid conjunction to sealing hole 25, stops the first seal assembly of limitation and the second seal assembly；
Finally connection component, which is connected to, needs to be debugged and run in mechanical equipment to be mounted.
In another embodiment, first seal assembly includes sealing ring 1 and sealing ring 27, and described second
Seal assembly includes sealing ring 38, and the sealing ring 1, sealing ring 27 are oil sealing, and the sealing ring 38 is dustband.
By using above-mentioned technical proposal, it is sealed using 27 two groups of sealing ring 1, sealing ring oil sealings, it can be internal
Joint gap between pipe 2 and end cap 3 is sealed, and prevents lubricant grease from oozing out in gap, and stop moisture impurity from
Gap enters the inside of electric pushrod；Protective seal is carried out using dustband simultaneously, prevents extraneous impurity moisture direct
Contact Seal ring 1, sealing ring 27 play the role of protecting sealing ring 1, sealing ring 27, while can increase electronic
The leakproofness of push rod.
In another embodiment, the connection component includes the connection for being fixedly connected on outer tube 1 and stretching out 2 one end of inner tube
Seat 12, the connecting rod 14 being detachably connected on attachment base 12 and the interconnecting piece 15 being fixedly connected in connecting rod 14.
By using above-mentioned technical proposal, connection component is connect using dismountable mode with inner tube 2, passes through attachment base 12
Pre-connection is in inner tube 2, by 15 pre-connection of interconnecting piece on needing mechanical equipment to be mounted, in disassembly or installation, it is only necessary to
It is attached installation between attachment base 12 and connecting rod 14, carries out operation convenient for operator.
In another embodiment, the connecting hole 13 for connecting with connecting rod 14 is provided on the attachment base 12,
It is provided with external screw thread one in the connecting rod 14, is provided on the connecting hole 13 and the mutually matched internal screw thread of external screw thread one
One.
By using above-mentioned technical proposal, the mode being connected through a screw thread is attached connecting rod 14 and attachment base 12,
And thread locking adhesive can be filled in its junction and be reinforced and sealed, it is convenient that installation company is carried out to connecting rod 14 and attachment base 12
It connects.
In another embodiment, the outside of the attachment base 12 is provided with external screw thread two, and said inner tube 2 stretches out outer tube
It is provided on 1 one end and is not more than the outer of inner tube 2 with the mutually matched internal screw thread two of external screw thread two, the outer diameter of the attachment base 12
Diameter.
By using above-mentioned technical proposal, the mode being connected through a screw thread is attached attachment base 12 and inner tube 2, and can
In its junction, filling thread locking adhesive is sealed and reinforces, and the outer diameter of attachment base 12 is not more than inner tube 2, can facilitate set
Sealing ring 1, sealing ring 27, sealing ring 38 and the end cap 3 being located in inner tube 2 are removed from inner tube 2, convenient for electric pushrod
Seal member assembled and replaced.
In another embodiment, the internal screw thread one and internal screw thread two it is oppositely oriented.
It is oppositely oriented due to internal screw thread one and internal screw thread two by using above-mentioned technical proposal, attachment base can be prevented
It influences each other between 12 and inner tube 2, when being dismantled between connecting rod 14 and attachment base 12 and causes to loosen between screw thread；
Opposite thread rotary orientation, when connecting rod 14 and connecting hole 13 carry out screw thread and unscrew disassembly, can to attachment base 12 and inner tube 2 it
Between generate the power screwed, so that it is guaranteed that the threaded pre-tightening power between attachment base 12 and inner tube 2, unscrew attachment base 12 with it is interior
It, also being capable of screw-threaded coupling between connecting hole 13 and connecting rod 14 when screw thread between pipe 2.
In another embodiment, it is threaded in the connecting rod 14 and is inserted into connecting hole for adjusting connecting rod 14
The attaching nut 16 of 13 depth.
By using above-mentioned technical proposal, by the way that attaching nut 16 is arranged in connecting rod 14, when 14 screw thread of connecting rod revolves
When entering the inside of connecting hole 13, attaching nut 16 can squeeze the end face of attachment base 12, by attaching nut 16 and even
Mutual extrusion between joint chair 12 so that screw thread, connecting hole 13 between attaching nut 16 and connecting rod 14 and connecting rod 14 it
Between screw thread on there is biggish extruding force, generate biggish frictional force carry out it is locking, so that connecting rod 14 is fixedly connected on
On attachment base 12.
By adjusting position of the attaching nut 16 in connecting rod 14, the length that connecting rod 14 protrudes into connecting hole 13 can be adjusted
Degree, and then the entire length of attachment base 12, connecting rod 14 is adjusted, it is finely adjusted convenient for the assembly to electric pushrod.
In another embodiment, the door 9 is threaded on end cap 3, and the outside of the end cap 3 is provided with outer
Screw thread 3 10 is provided with and the mutually matched internal screw thread 3 11 of external screw thread 3 10 on the door 9.
By using above-mentioned technical proposal, door 9 is connected on end cap 3 by the way of being threadedly coupled, can be by end cap 3
Axial-rotation be converted into axial displacement, can to door 9 with respect to end cap 3 axial position into adjusting, can be according to sealing hole
25 depth, sealing ring 38 thickness be adjusted.
In another embodiment, the interconnecting piece 15 includes the mounting hole for installation.
By using above-mentioned technical proposal, interconnecting piece 15 can be installed and is connected on mechanical equipment, in order to increase electronic push away
The use scope of bar and the convenience of installation, can be processed mounting hole on interconnecting piece 15, when installation, it is only necessary to be inserted into connecting shaft and install
Hole.The device shaped that specific shape and structure can connect as needed is processed.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (10)
1. a kind of electric pushrod convenient for being replaced to sealing element, it is characterised in that: including the outer tube (1) that is mutually socketed and interior
It manages (2), one end of the outer tube (1) is provided with end cap (3), is provided on the end cap (3) and is led to for what inner tube (2) passed through
Hole, the through-hole include from end cap (3) far from outer tube (1) one end to close to outer tube (1) one end extend and bore one by one
Reduced sealing hole two (5), sealing hole one (4) and sealing hole three (17), the sealing hole three (17) are connected to sealing hole one (4)
And the first cascaded surface is formed in junction, the sealing hole one (4) is connected with sealing hole two (5) and forms second in junction
Cascaded surface is equipped at the first cascaded surface in the sealing hole one (4) for the to sealing hole one (4) and inner tube (2) sealing
One seal assembly is equipped with for sealing to sealing hole two (5) and inner tube (2) at the second cascaded surface in the sealing hole two (5)
The second seal assembly, one end on the end cap (3) far from outer tube (1) is equipped with for stopping the first seal assembly and second close
One end of the door (9) of sealing assembly, said inner tube (2) through door (9) and is stretched out outer tube (1), and said inner tube (2) stretches out outer tube
(1) one end diameter is equal, and one end that said inner tube (2) stretches out outer tube (1) is removably connected with the connection component for installation.
2. a kind of electric pushrod convenient for being replaced to sealing element according to claim 1, it is characterised in that: described
One seal assembly includes sealing ring one (6) and sealing ring two (7), and second seal assembly includes sealing ring three (8), described close
Seal one (6), sealing ring two (7) are oil sealing, and the sealing ring three (8) is dustband.
3. a kind of electric pushrod convenient for being replaced to sealing element according to claim 1, it is characterised in that: the company
Connected components include being fixedly connected on outer tube (1) to stretch out the attachment base (12) of inner tube (2) one end, be detachably connected on attachment base (12)
On connecting rod (14) and the interconnecting piece (15) that is fixedly connected on connecting rod (14).
4. a kind of electric pushrod convenient for being replaced to sealing element according to claim 3, it is characterised in that: the company
It is provided with the connecting hole (13) for connecting with connecting rod (14) on joint chair (12), is provided with external screw thread on the connecting rod (14)
One, it is provided with and the mutually matched internal screw thread one of external screw thread one on the connecting hole (13).
5. a kind of electric pushrod convenient for being replaced to sealing element according to claim 4, it is characterised in that: the company
The outside of joint chair (12) is provided with external screw thread two, is provided with and external screw thread two-phase on one end of said inner tube (2) stretching outer tube (1)
The internal screw thread two mutually cooperated, the outer diameter of the attachment base (12) are not more than the outer diameter of inner tube (2).
6. a kind of electric pushrod convenient for being replaced to sealing element according to claim 5, it is characterised in that: in described
Screw thread one and internal screw thread two it is oppositely oriented.
7. a kind of electric pushrod convenient for being replaced to sealing element according to claim 4, it is characterised in that: the company
The attaching nut (16) for adjusting connecting rod (14) insertion connecting hole (13) depth is threaded on extension bar (14).
8. a kind of electric pushrod convenient for being replaced to sealing element according to claim 1, it is characterised in that: the gear
Lid (9) is threaded on end cap (3).
9. a kind of electric pushrod convenient for being replaced to sealing element according to claim 8, it is characterised in that: the end
The outside of lid (3) is provided with external screw thread three (10), is provided on the door (9) and the mutually matched interior spiral shell of external screw thread three (10)
Line three (11).
10. a kind of electric pushrod convenient for being replaced to sealing element according to claim 3, it is characterised in that: described
Interconnecting piece (15) includes the mounting hole for installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446411.1U CN209545351U (en) | 2019-04-03 | 2019-04-03 | A kind of electric pushrod convenient for being replaced to sealing element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446411.1U CN209545351U (en) | 2019-04-03 | 2019-04-03 | A kind of electric pushrod convenient for being replaced to sealing element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209545351U true CN209545351U (en) | 2019-10-25 |
Family
ID=68275926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920446411.1U Expired - Fee Related CN209545351U (en) | 2019-04-03 | 2019-04-03 | A kind of electric pushrod convenient for being replaced to sealing element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209545351U (en) |
-
2019
- 2019-04-03 CN CN201920446411.1U patent/CN209545351U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |