CN212486278U - Motor leading-out terminal sealing device and motor - Google Patents

Motor leading-out terminal sealing device and motor Download PDF

Info

Publication number
CN212486278U
CN212486278U CN202022216507.4U CN202022216507U CN212486278U CN 212486278 U CN212486278 U CN 212486278U CN 202022216507 U CN202022216507 U CN 202022216507U CN 212486278 U CN212486278 U CN 212486278U
Authority
CN
China
Prior art keywords
motor
sealing
insulating sleeve
outlet end
out terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202022216507.4U
Other languages
Chinese (zh)
Inventor
王永恒
邓春志
杜友耀
闫晗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wolong Electric Shanghai Central Research Institute Co ltd
Zhejiang Longchuang Motor Technology Innovation Co ltd
Wolong Electric Drive Group Co Ltd
Original Assignee
Wolong Electric Shanghai Central Research Institute Co ltd
Zhejiang Longchuang Motor Technology Innovation Co ltd
Wolong Electric Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wolong Electric Shanghai Central Research Institute Co ltd, Zhejiang Longchuang Motor Technology Innovation Co ltd, Wolong Electric Group Co Ltd filed Critical Wolong Electric Shanghai Central Research Institute Co ltd
Priority to CN202022216507.4U priority Critical patent/CN212486278U/en
Application granted granted Critical
Publication of CN212486278U publication Critical patent/CN212486278U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Motor Or Generator Frames (AREA)

Abstract

The utility model discloses a motor leading-out terminal sealing device and motor, this motor leading-out terminal sealing device includes: the insulating sleeve is used for being sleeved with the wire outlet hole of the motor shell and is provided with a wire through hole for the wire outlet end of the power supply machine to penetrate through; the first sealing structure is arranged between the insulating sleeve and the motor shell; locate the second seal structure between insulating sleeve and the motor leading-out terminal, at least one in first seal structure and the second seal structure can be dismantled. Set up insulating sleeve between motor casing and motor leading-out terminal to through first seal structure and second seal structure, guarantee insulating sleeve respectively with the motor casing and the motor leading-out terminal between the leakproofness of being connected, avoid the inside cooling liquid of motor to leak. Through dismantling first seal structure and/or second seal structure, can finally realize the separation of motor leading-out terminal and motor casing, be convenient for the later stage to motor leading-out terminal maintain. The motor comprises the motor wire outlet end sealing device and has the beneficial effects.

Description

Motor leading-out terminal sealing device and motor
Technical Field
The utility model relates to a motor sealing device technical field, more specifically say, relate to a motor leading-out terminal sealing device. Furthermore, the utility model discloses still relate to a motor including above-mentioned motor leading-out terminal sealing device.
Background
In order to prevent the cooling liquid inside the motor from leaking, it is generally necessary to seal the motor outlet end to the motor housing to seal the cooling liquid inside the motor housing.
In the prior art, the connection between the motor wire outlet end and the motor shell is generally realized through a glue pouring mode, and after the sealant is cured, the motor wire outlet end and the motor shell are fixedly connected into a whole and cannot be separated.
However, this kind of fixed non-detachable sealing connection mode, the operation is inconvenient during the connection, needs to wait for the gluey solidification of pouring, and the installation cycle is longer, promptly, is not convenient for earlier stage installation, is not convenient for later maintenance simultaneously.
Therefore, how to provide a motor outlet end sealing device to facilitate early installation and later maintenance is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a motor leading-out terminal sealing device, be convenient for installation earlier stage and later maintenance.
Another object of the utility model is to provide an including above-mentioned motor leading-out terminal sealing device's motor, be convenient for maintain its motor leading-out terminal.
In order to achieve the above object, the present invention provides the following technical solutions:
an electric motor outlet end sealing device, comprising:
the insulating sleeve is used for being sleeved with the wire outlet hole of the motor shell and is provided with a wire through hole for the wire outlet end of the power supply machine to penetrate through;
a first seal structure disposed between the insulating sleeve and the motor housing;
and the second sealing structure is arranged between the insulating sleeve and the motor wire outlet end, and at least one of the first sealing structure and the second sealing structure can be detached.
Preferably, the first sealing structure includes:
the first sealing body is sleeved on the periphery of the insulating sleeve and has elasticity;
and the first sealing body is pressed on the first sealing body and fixedly connected with the insulating sleeve or the motor shell, and after being deformed under the extrusion of the first sealing body, the first sealing body is respectively attached and contacted with the outer peripheral part of the insulating sleeve and the end surface of the motor shell.
Preferably, the first fastening member is sleeved on the outer periphery of the insulating sleeve and is in threaded connection with the insulating sleeve.
Preferably, a first compression ring is disposed between the first sealing body and the first fastener.
Preferably, one side of the motor shell facing the outside of the motor is provided with a first sinking groove, and the first sealing body is embedded in the first sinking groove.
Preferably, one end of the first fastening piece facing the motor shell is in a step shape, and the first fastening piece comprises a first protruding portion protruding into the first sinking groove and a first attaching portion overlapping with the end face of the motor shell.
Preferably, the first and second sealing structures are identical in structure.
Preferably, one end of the insulating sleeve facing the inside of the motor shell is provided with a first spigot for axial limiting.
Preferably, one end of the threading hole facing the inside of the motor shell is provided with a stepped hole for axially limiting a second spigot of the motor wire outlet end.
A motor comprises a motor shell and a motor wire outlet end, wherein the motor shell and the motor wire outlet end are in sealing connection through a sealing structure, and the sealing structure is any one of the motor wire outlet end sealing devices.
The utility model provides a motor leading-out terminal sealing device sets up insulating sleeve between motor casing and motor leading-out terminal to guarantee the leakproofness between insulating sleeve and the motor casing through first seal structure, guarantee the leakproofness between insulating sleeve and the motor leading-out terminal through second seal structure, finally can realize the sealing connection between motor leading-out terminal and the motor casing, avoid the inside cooling liquid of motor to leak.
In addition, at least one of the first sealing structure and the second sealing structure can be detached, so that the separation of the motor wire outlet end and the motor shell can be finally realized by detaching the first sealing structure and/or the second sealing structure, and the maintenance of the motor wire outlet end in the later period is facilitated.
In addition, during installation, through the assembly of the first sealing structure and/or the second sealing structure, sealing connection is realized, glue filling operation is avoided, glue curing and the like do not need to wait, and therefore early-stage installation is facilitated.
The utility model provides a motor, including above-mentioned motor leading-out terminal sealing device, when realizing motor leading-out terminal and motor casing sealing connection, can make motor leading-out terminal and motor casing separation, the later stage of being convenient for is maintained the motor leading-out terminal.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a cross-sectional view of a motor outlet end sealing device according to an embodiment of the present invention.
The reference numerals in fig. 1 are as follows:
1 is motor shell, 2 is insulating sleeve, 21 is first tang, 3 is motor outlet end, 31 is second tang, 41 is first sealing body, 42 is first fastener, 43 is first clamp ring, 51 is second sealing body, 52 is second fastener, 53 is second clamp ring, 6 is motor lead-out wire.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The core of the utility model is to provide a motor leading-out terminal sealing device, the later maintenance of being convenient for. The utility model discloses an another core provides a motor including above-mentioned motor leading-out terminal sealing device, is convenient for maintain its motor leading-out terminal.
Fig. 1 is a cross-sectional view of a motor lead-out end sealing device according to an embodiment of the present invention.
The utility model provides a motor leading-out terminal sealing device mainly includes insulating sleeve 2, first seal structure and second seal structure.
Specifically, the insulating sleeve 2 is used for being sleeved with a wire outlet hole of the motor shell 1, and meanwhile, the insulating sleeve 2 is provided with a threading hole for the wire outlet end 3 of the power supply motor to penetrate through.
That is to say, the utility model discloses utilize insulating sleeve 2's switching effect, through set up insulating sleeve 2 between motor casing 1 and motor leading-out terminal 3, make and realize indirect connection between motor leading-out terminal 3 and the motor casing 1.
After assembly, the insulating sleeve 2 is assembled in a wire outlet hole of the motor shell 1, and the motor wire outlet end 3 is assembled in a wire threading hole of the insulating sleeve 2.
The first seal structure is provided between the insulator sleeve 2 and the motor housing 1 to ensure sealability between the insulator sleeve 2 and the motor housing 1.
The second sealing structure is arranged between the insulating sleeve 2 and the motor wire outlet end 3 to ensure the sealing property between the insulating sleeve 2 and the motor wire outlet end 3.
That is, the utility model discloses a first seal structure and second seal structure guarantee insulating sleeve 2 respectively with the leakproofness of being connected between motor casing 1 and the motor leading-out terminal 3, finally realize the sealed between motor leading-out terminal 3 and the motor casing 1, avoid the inside cooling liquid of motor to leak.
In addition, at least one of the first and second sealing structures may be detachable.
It is understood that by detaching the first seal structure, the separation of the insulator sleeve 2 from the motor housing 1 can be achieved; the separation of the insulating sleeve 2 and the motor wire outlet end 3 can be realized by disassembling the second sealing structure; therefore, through dismantling first seal structure and/or second seal structure, can finally realize the separation of motor leading-out terminal 3 and motor casing 1, be convenient for the later stage to motor leading-out terminal 3 maintain.
It should be noted that, as the name implies, the insulating sleeve 2 has insulating properties and is made of an insulating material, so as to ensure good electrical insulating properties of the motor outlet terminal 3.
It should be noted that, the present invention does not limit the specific structure of the first sealing structure, as long as the sealing effect between the insulating sleeve 2 and the motor housing 1 can be achieved.
Preferably, on the basis of the above-described embodiment, the first sealing structure includes the first sealing body 41 and the first fastening member 42.
Specifically, the first sealing body 41 is disposed on the outer periphery of the insulating sleeve 2 and has elasticity. The first fastening member 42 is pressed against the first sealing body 41 and is used for generating extrusion force on the first sealing body 41, and the first fastening member 42 is fixedly connected with the insulating sleeve 2 or the motor housing 1.
After the first fastening member 42 is fixedly connected with the insulating sleeve 2 or the motor housing 1, the first sealing body 41 is extruded, the first sealing body 41 deforms under the extrusion action of the first fastening member 42, and after the first sealing body 41 deforms, the first sealing body is respectively attached and contacted with the outer peripheral part of the insulating sleeve 2 and the end face of the motor housing 1 to realize sealing.
That is, the first seal structure achieves sealing between the insulative sleeve 2 and the motor housing 1 by deformation of the first sealing body 41 under pressure.
In the present embodiment, the specific fixing manner of the first fastening member 42 is not limited, and the first fastening member 42 may be fixed to generate the pressing force on the first sealing body 41.
Preferably, on the basis of the above embodiment, the first fastening member 42 is sleeved on the outer periphery of the insulating sleeve 2 and is in threaded connection with the insulating sleeve 2.
That is, in the present embodiment, the first seal body 41 is axially biased by the screw-coupling of the first fastening member 42 to the insulating sleeve 2, so that the first seal body 41 is deformed to press the outer peripheral portion of the insulating sleeve 2 and the end surface of the motor housing 1.
Further, in order to prevent damage to the first sealing body 41 when the first fastening member 42 is attached and detached, a first clamp ring 43 is provided between the first sealing body 41 and the first fastening member 42 in addition to the above-described embodiment.
It can be appreciated that during tightening of first fastener 42, first clamp ring 43 may prevent the end of first fastener 42 from directly acting on first sealing element 41, causing friction to first sealing element 41 and resulting in damage to first sealing element 41.
After the first fastening element 42 is tightened, the pressing force is transmitted to the first sealing body 41 via the first clamping ring 43.
In addition, in order to improve the sealing effect, on the basis of the above embodiment, a first sinking groove is formed on one side of the motor housing 1 facing the outside of the motor, and the first sealing body 41 is embedded in the first sinking groove.
It can be understood that, due to the limitation of the side wall of the first sunken groove, when the first sealing body 41 is pressed, the first sealing body 41 is respectively in contact with the outer peripheral portion of the insulating sleeve 2, the groove bottom of the first sunken groove and the inner side wall of the first sunken groove, so that the contact area between the first sealing body 41 and the motor housing 1 is increased, and the sealing effect between the insulating sleeve 2 and the motor housing 1 is improved.
Further, in order to better apply the pressing force to the first sealing body 41, on the basis of the above-described embodiment, one end of the first fastening member 42 facing the motor housing 1 is stepped, and includes a first protruding portion for protruding into the first sunken groove and a first abutting portion for overlapping with the end surface of the motor housing 1.
It can be understood that, when the first fastening member 42 is fixed, the first extending portion extends into the first sinking groove to generate extrusion force on the first sealing body 41, and the extrusion effect is good; meanwhile, the first attaching portion is overlapped with the end face of the motor shell 1, the axial limiting effect on the first fastening piece 42 can be achieved, and the first fastening piece 42 can be quickly positioned during installation.
Additionally, the utility model discloses do not restrict the concrete structure of second seal structure, as long as can realize insulating sleeve 2 and motor leading-out terminal 3 between the sealed effect can.
Preferably, the first sealing structure and the second sealing structure have the same structure based on the above embodiment.
As shown in fig. 1, the second sealing structure includes a second sealing body 51 and a second fastener 52.
Specifically, the second sealing body 51 is disposed around the outer periphery of the motor outlet 3 and has elasticity. The second fastening member 52 is pressed on the second sealing body 51 and used for generating extrusion force on the second sealing body 51, and the second fastening member 52 is fixedly connected with the insulating sleeve 2 or the motor outlet end 3.
After the second fastening member 52 is fixedly connected with the insulating sleeve 2 or the motor leading-out terminal 3, the second sealing body 51 is extruded, the second sealing body 51 deforms under the extrusion action of the second fastening member 52, and after the second sealing body 51 deforms, the second sealing body is respectively attached and contacted with the end face of the insulating sleeve 2 and the peripheral part of the motor leading-out terminal 3 so as to realize sealing.
That is, the second sealing structure realizes sealing between the insulating sleeve 2 and the motor outlet terminal 3 by deformation of the second sealing body 51 under pressure.
In consideration of the specific fixing manner of the second fastening member 52, on the basis of the above embodiment, the second fastening member 52 is sleeved on the outer peripheral portion of the motor outlet terminal 3 and is screwed with the motor outlet terminal 3.
That is, in this embodiment, the second fastening member 52 is screwed to the motor lead terminal 3, and an axial preload is applied to the second sealing body 51, so that the second sealing body 51 deforms and presses the end surface of the insulating sleeve 2 and the outer peripheral portion of the motor lead terminal 3.
Further, in order to prevent the second sealing body 51 from being damaged when the second fastening member 52 is attached and detached, in addition to the above-described embodiment, the second clamp ring 53 is provided between the second sealing body 51 and the second fastening member 52.
After the second fastening element 52 is tightened, the pressing force is transmitted to the second sealing body 51 via the second clamping ring 53.
In addition, in order to improve the sealing effect, on the basis of the above embodiment, a second sinking groove is provided on one side of the insulating sleeve 2 facing the outside of the motor, and the second sealing body 51 is embedded in the second sinking groove.
It can be understood that, due to the limitation of the side wall of the second sunken groove, when the second sealing body 51 is extruded, the second sealing body 51 is respectively in contact with the outer peripheral part of the motor outlet terminal 3, the groove bottom of the second sunken groove and the inner side wall of the second sunken groove, so that the contact area between the second sealing body 51 and the insulating sleeve 2 is increased, and the sealing effect between the insulating sleeve 2 and the motor outlet terminal 3 is improved.
Further, in order to better apply the pressing force to the second sealing body 51, on the basis of the above embodiment, one end of the second fastening member 52 facing the insulating sleeve 2 is stepped, and includes a second protruding portion for protruding into the second sunken groove and a second abutting portion for overlapping with the end surface of the motor housing 1.
It can be understood that, when the second fastening member 52 is fixed, the second extending portion extends into the second sinking groove to generate extrusion force on the second sealing body 51, and the extrusion effect is good; meanwhile, the second fitting portion is overlapped with the end face of the insulating sleeve 2, so that the axial limiting effect on the second fastening piece 52 can be achieved, and the second fastening piece 52 can be quickly positioned during installation.
On this basis, as shown in fig. 1, preferably, the second fitting portion extends radially outward to overlap with the end face of the first fastening member 42, so as to improve the stability of the axial position limitation of the second fastening member 52.
In view of the problem of axial retention of the insulator sleeve 2 when the insulator sleeve 2 is assembled with the motor housing 1, on the basis of the above-described embodiment, the end of the insulator sleeve 2 facing the inside of the motor housing 1 is provided with a first stop 21 for axial retention.
That is, when the insulating sleeve 2 is installed, the insulating sleeve 2 is inserted into the wire outlet from the inside of the motor housing 1 to the outside thereof until the first seam allowance 21 abuts against the notch of the motor housing 1 for fitting with the first seam allowance 21, which indicates that the insulating sleeve 2 is installed in place.
Similarly, considering the problem of axial position limitation of the motor outlet end 3 when the motor outlet end 3 is assembled with the insulating sleeve 2, on the basis of the above embodiment, the end of the threading hole facing the inside of the motor housing 1 is provided with a stepped hole for axially limiting the second spigot 31 of the motor outlet end 3.
That is to say, the motor outlet terminal 3 in this embodiment is provided with the second seam allowance 31, when the motor outlet terminal 3 is installed, the threading hole of the insulating sleeve 2 is inserted from the inside of the motor to the outside of the motor until the second seam allowance 31 is matched with the stepped hole, which indicates that the motor outlet terminal 3 and the insulating sleeve 2 are assembled in place.
It can be understood that the motor outlet terminal 3 is fixedly connected with the motor outlet terminal 6, and preferably, the motor outlet terminal 6 is connected with the motor outlet terminal 3 by soldering or the like to realize power transmission.
In the above embodiments, the inside of the motor refers to a portion located below the motor housing 1 in fig. 1, and the outside of the motor refers to a portion located above the motor housing 1 in fig. 1.
Except above-mentioned motor leading-out terminal sealing device, the utility model discloses still provide a motor, this motor includes motor casing 1 and motor leading-out terminal 3, and both pass through seal structure sealing connection, and this seal structure is the motor leading-out terminal sealing device that above-mentioned embodiment is disclosed, and the structure of other each parts of this motor please refer to prior art, and this text is no longer repeated.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above the utility model provides a motor leading-out terminal sealing device and motor have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (10)

1. A motor leading-out terminal sealing device is characterized by comprising:
the insulation sleeve (2) is used for being sleeved with a wire outlet hole of the motor shell (1) and is provided with a threading hole for a wire outlet end (3) of a power supply motor to pass through;
the first sealing structure is arranged between the insulating sleeve (2) and the motor shell (1);
and the second sealing structure is arranged between the insulating sleeve (2) and the motor wire outlet end (3), and at least one of the first sealing structure and the second sealing structure can be detached.
2. The motor outlet end seal of claim 1, wherein the first seal structure comprises:
a first sealing body (41) which is sleeved on the periphery of the insulating sleeve (2) and has elasticity;
and a first fastening member (42) which is pressed on the first sealing body (41) and is fixedly connected with the insulation sleeve (2) or the motor shell (1), wherein the first sealing body (41) is respectively attached and contacted with the outer peripheral part of the insulation sleeve (2) and the end surface of the motor shell (1) after being deformed by the first fastening member (42).
3. The motor outlet end sealing device according to claim 2, wherein the first fastening member (42) is sleeved on the outer periphery of the insulating sleeve (2) and is in threaded connection with the insulating sleeve (2).
4. The motor outlet end seal according to claim 3, wherein a first compression ring (43) is disposed between the first seal body (41) and the first fastener (42).
5. The motor outlet end sealing device according to claim 3, wherein a first sunken groove is formed in one side of the motor housing (1) facing the outside of the motor, and the first sealing body (41) is embedded in the first sunken groove.
6. The motor outlet end sealing device according to claim 5, wherein the end of the first fastening member (42) facing the motor housing (1) is stepped and includes a first protruding portion protruding into the first sunken groove and a first abutting portion overlapping with the end face of the motor housing (1).
7. The motor outlet end seal according to any one of claims 1-6, wherein the first seal structure and the second seal structure are identical in construction.
8. An electric machine outlet end sealing device according to any one of claims 1-6, characterized in that the end of the insulating sleeve (2) facing the inside of the electric machine housing (1) is provided with a first stop (21) for axial stop.
9. The motor outlet end sealing device according to claim 8, wherein the end of the threading hole facing the inside of the motor housing (1) is provided with a stepped hole for axially limiting the second spigot (31) of the motor outlet end (3).
10. An electric machine comprising a machine housing (1) and a machine outlet (3) which are sealingly connected by a sealing structure, characterized in that the sealing structure is a machine outlet sealing device according to any one of claims 1-9.
CN202022216507.4U 2020-09-30 2020-09-30 Motor leading-out terminal sealing device and motor Active CN212486278U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022216507.4U CN212486278U (en) 2020-09-30 2020-09-30 Motor leading-out terminal sealing device and motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022216507.4U CN212486278U (en) 2020-09-30 2020-09-30 Motor leading-out terminal sealing device and motor

Publications (1)

Publication Number Publication Date
CN212486278U true CN212486278U (en) 2021-02-05

Family

ID=74449461

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022216507.4U Active CN212486278U (en) 2020-09-30 2020-09-30 Motor leading-out terminal sealing device and motor

Country Status (1)

Country Link
CN (1) CN212486278U (en)

Similar Documents

Publication Publication Date Title
CN111585228A (en) Forced environment cable through-wall quick sealing joint and installation method thereof
CN106961088B (en) Cable pipeline plugging device
KR200474790Y1 (en) Pipe connector
CN212486278U (en) Motor leading-out terminal sealing device and motor
CN112134397A (en) Motor leading-out terminal sealing device and motor
CN211321081U (en) Split type waterproof motor casing
CN105006784B (en) Corrugated flexible hose seal nipple
CN112134398A (en) Motor leading-out terminal sealing device and motor
CN108023224B (en) Waterproof high-voltage single-core plugging device
CN212992106U (en) Motor leading-out terminal sealing device and motor
CN213937408U (en) Power cable wiring protection device
CN213899850U (en) Equipment and seal structure thereof
CN212251497U (en) Waterproof structure for underground wall penetrating pipe
CN210196712U (en) Sealing assembly and gas sleeve
CN210015821U (en) High-sensitivity hydraulic switch connector
CN219041365U (en) Cable metal sheath fracture sealing device
CN105576421A (en) Connector and underwater cable assembly using connector
CN105048400A (en) Electrical device and cable fixing head thereof
CN212210400U (en) Put environmental cable by force and wear wall quick seal joint
CN212991941U (en) Cable joint seal structure
CN214337520U (en) Sealing matching structure
CN217815625U (en) Saddle joint
CN109698431B (en) Gearbox and cylinder penetrating connector thereof
CN218215862U (en) Insulating sealed type bolt connector
CN217422483U (en) Spacing telescopic joint of riser

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant