CN214958632U - Inlet wire stuffing box sealing structure - Google Patents
Inlet wire stuffing box sealing structure Download PDFInfo
- Publication number
- CN214958632U CN214958632U CN202121402662.3U CN202121402662U CN214958632U CN 214958632 U CN214958632 U CN 214958632U CN 202121402662 U CN202121402662 U CN 202121402662U CN 214958632 U CN214958632 U CN 214958632U
- Authority
- CN
- China
- Prior art keywords
- stuffing box
- rubber
- inlet wire
- gasket
- hole
- 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
Links
Images
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses an inlet wire stuffing box sealing structure, which comprises a rubber sealing element main body, wherein a first through hole for a cable to pass through is formed inside the rubber sealing element main body; at least one end face of the rubber sealing element main body is provided with an annular sunken groove structure extending along the circumferential direction of the first through hole; a gasket formed with a second through hole penetrating both side surfaces thereof; and a parting convex surface structure extending along the circumferential direction of the second through hole is formed on one side surface of the gasket. The application provides a inlet wire stuffing box seal structure, the one end or the both ends preparation with original cylinder rubber seal form heavy groove structure, the rethread is used with the gasket cooperation that hardness is bigger respectively, can increase rubber seal main part and entrance hole planar area of contact, and do not need very much just can make inlet wire cable and stuffing box seal closely hard when fastening inlet wire bolt, make the watertight performance more reliable, be worth the large tracts of land and use widely.
Description
Technical Field
The utility model relates to a stuffing box accessory technical field especially relates to an inlet wire stuffing box seal structure.
Background
The cable stuffing box is used for locking or matching a cable on the box body of the electric control cabinet and sealing the cable in a stuffing sealing mode. The novel sealing device has the advantages of simple structure, low manufacturing cost, various forms, firm installation, convenience in use, good sealing effect and the like.
Stuffing box seals are typically contact dynamic seals that block leakage paths with stuffing and can be used for reciprocating or rotating motion, mainly including both soft and hard stuffing seals. The soft packing seal is also called packing seal, and the packing in the packing box is radially expanded under the action of the axial force of the gland so as to achieve the sealing purpose.
In the prior art, the sealing element for the sealing box, which is made of rubber and other materials, is generally of a cylindrical structure with a through hole in the middle, two end faces of the sealing element are of a planar structure, and when the sealing element is used, two ends of the sealing element are deformed by axial force of a gland, and are expanded in the radial direction to achieve the purpose of density.
Although such a seal can provide a good sealing effect, both end surfaces of the seal are very easily worn during use because the strength of the material of the seal itself is low. Simultaneously, the axial force of the gland acting on the two ends of the sealing element is easy to be unbalanced, so that the sealing effect is reduced to a certain degree due to the fact that the deformation of the sealing element is not uniform. In addition, the two end faces of the sealing element are provided with plane structures, when the sealing element is used, the two end faces can deform under the action of axial force, so that the contact area between the two end faces and the gland is small, and in order to ensure that the whole sealing element can be tightly contacted with a cable, the fastening force of the fastening bolt needs to be increased to ensure that the axial force applied by the gland can ensure that the sealing element can achieve corresponding deformation.
SUMMERY OF THE UTILITY MODEL
The utility model provides an inlet wire packing box seal structure.
The utility model provides a following scheme:
an inlet stuffing box seal arrangement, comprising:
a rubber seal body having a first through hole formed therein for a cable to pass through; at least one end face of the rubber sealing element main body is provided with an annular sunken groove structure extending along the circumferential direction of the first through hole;
a gasket formed with a second through hole penetrating both side surfaces thereof; a parting convex surface structure extending along the circumferential direction of the second through hole is formed on one side surface of the gasket;
the hardness of the gasket is greater than that of the rubber sealing element main body, and the sectional shape of the parting convex surface structure is matched with that of the sinking groove.
Preferably: the sink groove structure is provided with a dovetail groove structure.
Preferably: the included angle of the two groove surfaces of the dovetail groove structure is 120 degrees.
Preferably: the two end faces of the rubber sealing element main body are both provided with the sinking groove structures.
Preferably: the rubber sealing element main body is made of nitrile rubber.
Preferably: the Shore hardness of the nitrile rubber is 65.
Preferably: the included angle of the two parting surfaces of the parting convex surface structure is 120 degrees.
Preferably: the gasket is made of metal.
Preferably: the metal is copper.
According to the utility model provides a concrete embodiment, the utility model discloses a following technological effect:
through the utility model, an inlet wire stuffing box sealing structure can be realized, and in one implementation mode, the structure can comprise a rubber sealing element main body, wherein a first through hole for a cable to pass through is formed inside the rubber sealing element main body; at least one end face of the rubber sealing element main body is provided with an annular sunken groove structure extending along the circumferential direction of the first through hole; a gasket formed with a second through hole penetrating both side surfaces thereof; a parting convex surface structure extending along the circumferential direction of the second through hole is formed on one side surface of the gasket; the hardness of the gasket is greater than that of the rubber sealing element main body, and the sectional shape of the parting convex surface structure is matched with that of the sinking groove. The application provides an inlet wire stuffing box seal structure, simple structure is reasonable, installation convenient to use, preparation low cost. The one end or the both ends preparation with original cylinder rubber seal form heavy groove structure, and the rethread is used with the gasket cooperation that hardness is bigger respectively, can increase rubber seal main part and entrance hole planar area of contact to do hard when fastening the inlet wire bolt and need not very just can make the inlet wire cable sealed inseparable with the stuffing box, make the watertight performance more reliable, be worth using widely by a large scale.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
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 embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an inlet wire stuffing box sealing structure provided by an embodiment of the present invention;
fig. 2 is a top view of a rubber seal body provided by an embodiment of the present invention;
fig. 3 is a cross-sectional view of a rubber seal body provided by an embodiment of the present invention;
fig. 4 is a top view of a gasket provided by an embodiment of the present invention;
fig. 5 is a cross-sectional view of a gasket according to an embodiment of the present invention.
In the figure: the rubber sealing element comprises a rubber sealing element main body 1, a first through hole 11, a sink groove structure 12, a gasket 2, a second through hole 21 and a parting convex surface structure 22.
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 all belong to the protection scope of the present invention.
Examples
Referring to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, for an incoming stuffing box sealing structure provided by an embodiment of the present invention, as shown in fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the structure may include:
a rubber seal body 1, a first through hole 11 for a cable to pass through being formed inside the rubber seal body 1; at least one end face of the rubber sealing element main body 1 is provided with an annular sunken groove structure 12 extending along the circumferential direction of the first through hole 11;
a gasket 2 formed with second through holes 21 penetrating both side surfaces thereof; a parting convex surface structure 22 extending along the circumferential direction of the second through hole 21 is formed on one side surface of the gasket 2;
wherein the hardness of the gasket 2 is greater than that of the rubber sealing element main body 1, and the sectional shape of the parting convex surface structure 22 is matched with that of the sinking groove 12.
The inlet wire stuffing box seal structure that this application embodiment provided, one or two in two terminal surfaces of rubber seal main part form heavy groove structure, and when the gasket that the cooperation provided was used, can avoid the direct contact of rubber seal main part and gland or fastening bolt etc. to improve the life of rubber seal main part. In addition, because the hardness of gasket is greater than the hardness of the material of rubber seal main part, therefore the axial pressure that gland or fastening bolt provided can be at first acted on the gasket, and gasket deformation volume is less, when passing through the gasket again and transmitting to the rubber seal main part, can guarantee that rubber seal main part atress is more even, and then makes the deformation of rubber seal main part more even, is favorable to improving sealed effect. Because the rubber seal main part adopts the connected mode of heavy groove structure and parting convex surface structure adaptation with the gasket, can make the rubber seal main part be changeed under the less condition of pressure and produce radial tension to reach sealed purpose.
In practical applications, the sink structure may have a cross-sectional structure with various shapes, for example, in one implementation, the embodiment of the present application may provide that the sink structure 12 has a dovetail groove structure. Specifically, the included angle between the two groove surfaces of the dovetail groove structure is 120 degrees. By adopting the dovetail groove structure, the sinking groove can be conveniently and easily arranged, and the radial expansion of the rubber sealing element main body is facilitated.
In order to further improve the sealing effect, the embodiment of the application may further provide that both end surfaces of the rubber seal main body 1 are formed with the sink groove structures 12. The two end surfaces are both formed with sink groove structures and are respectively provided with corresponding gaskets.
The material of the rubber seal main part that this application embodiment provided can adopt multiple rubber, for example under an implementation, this application embodiment can provide the material of rubber seal main part 1 is nitrile rubber. Specifically, the shore hardness of the nitrile rubber is 65. Nitrile Butadiene Rubber (NBR) is a copolymer polymerized by acrylonitrile and butadiene monomers, is mainly produced by a low-temperature emulsion polymerization method, and has the advantages of excellent oil resistance, higher wear resistance, better heat resistance and strong bonding force. The hardness of the general nitrile butadiene rubber is 60-90 on the Shore scale. The hardness can be selected according to different sealing conditions. For occasions with higher pressure or larger sealing gaps, products with higher hardness are selected, so that the sealing elements can be effectively prevented from being damaged, and the service life is prolonged. However, the hardness is increased, which also causes certain difficulties in assembly, so that the shore hardness of the nitrile rubber provided by the application is 65.
The parting convex surface structure provided by the embodiment of the application can comprise various cross sectional shapes, and only the cross sectional shape is matched with the cross sectional shape of the sinking groove, for example, in an implementation mode, the embodiment of the application can provide that the included angle of two parting surfaces of the parting convex surface structure 22 is 120 degrees.
The gasket that this application embodiment provided can adopt multiple material preparation as required, only need guarantee the hardness of the material of gasket be greater than the material hardness of rubber seal main part can, for example, under an implementation, this application embodiment can provide the material of gasket is the metal. Specifically, the metal is copper. The copper gasket belongs to one kind of metal cladding gasket, and nonmagnetic, electrically conductive, heat conducting property, corrosion resistance are very good. The copper gasket can be made of high-quality red copper plates, has good weldability, can be made into various semi-finished products and finished products through cold and thermoplastic processing, ensures that a sealing surface is straight and does not warp through precision turning of a numerical control lathe, and ensures that a parting convex surface structure is tightly attached to a sink groove structure through high-precision grinding. The copper gasket is machined by mechanical cutting and the like, and has excellent flexibility for uneven parts of the surfaces of bolts, pressing covers and the like. Wide application temperature range and low leakage.
In a word, the inlet wire stuffing box seal structure that this application provided, simple structure is reasonable, installation convenient to use, and preparation low cost. The one end or the both ends preparation with original cylinder rubber seal form heavy groove structure, and the rethread is used with the gasket cooperation that hardness is bigger respectively, can increase rubber seal main part and entrance hole planar area of contact to do hard when fastening the inlet wire bolt and need not very just can make the inlet wire cable sealed inseparable with the stuffing box, make the watertight performance more reliable, be worth using widely by a large scale.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. An inlet wire stuffing box seal structure, comprising:
a rubber seal body having a first through hole formed therein for a cable to pass through; at least one end face of the rubber sealing element main body is provided with an annular sunken groove structure extending along the circumferential direction of the first through hole;
a gasket formed with a second through hole penetrating both side surfaces thereof; a parting convex surface structure extending along the circumferential direction of the second through hole is formed on one side surface of the gasket;
the hardness of the gasket is greater than that of the rubber sealing element main body, and the sectional shape of the parting convex surface structure is matched with that of the sinking groove.
2. The inlet stuffing box seal construction of claim 1 wherein said counter sink construction has a dovetail groove configuration.
3. The inlet stuffing box seal construction of claim 2 wherein the angle of the two slot faces of said dovetail slot arrangement is 120 °.
4. The inlet stuffing box seal construction of claim 2 wherein both end faces of said rubber seal body are formed with said undercut configuration.
5. The inlet wire stuffing box seal construction according to claim 1, wherein the material of said rubber seal body is nitrile rubber.
6. The incoming line stuffing box seal construction of claim 5, wherein said nitrile rubber has a Shore hardness of 65.
7. The inlet wire stuffing box seal construction of claim 1, wherein the included angle of the two parting surfaces of the parting convex surface structure is 120 °.
8. The inlet wire stuffing box seal construction of claim 7, wherein said spacer is made of metal.
9. The inlet stuffing box seal construction of claim 8, wherein said metal is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121402662.3U CN214958632U (en) | 2021-06-23 | 2021-06-23 | Inlet wire stuffing box sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121402662.3U CN214958632U (en) | 2021-06-23 | 2021-06-23 | Inlet wire stuffing box sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214958632U true CN214958632U (en) | 2021-11-30 |
Family
ID=79049841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121402662.3U Active CN214958632U (en) | 2021-06-23 | 2021-06-23 | Inlet wire stuffing box sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214958632U (en) |
-
2021
- 2021-06-23 CN CN202121402662.3U patent/CN214958632U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3582094A (en) | Sealing assembly | |
| US4397472A (en) | Cylinder head gasket with expanded graphite filler | |
| GB1300039A (en) | Coupling for pipes | |
| US9976680B2 (en) | Seal element for isolation gasket | |
| CN103486368A (en) | Flanged connection component | |
| CN214958632U (en) | Inlet wire stuffing box sealing structure | |
| US4852893A (en) | Elastomeric coated perforated metal core composite gasket and method of making same | |
| CN110425284B (en) | Sealing element | |
| EP1725792B1 (en) | Pump sealing apparatus | |
| CN211231569U (en) | Environment-friendly rubber seal | |
| CN101451615A (en) | N shaped composite sealing device | |
| CN204921323U (en) | Diaphragm type stabilized pressure pump and leak-proof structure thereof | |
| CN210461695U (en) | Sealing element | |
| CN212839382U (en) | Piston seal ring | |
| CN213361430U (en) | Supporting flange convenient to connect and that leakproofness is good | |
| CN210371425U (en) | High-temperature and high-pressure resistant Y-shaped ring combined sealing structure | |
| CN211449637U (en) | Combined sealing washer | |
| CN215980236U (en) | High performance digs quick-witted maintenance hydro-cylinder piston rod sealing member after sale | |
| CN104806512A (en) | Combinative sealing member applied to high-frequency and high-impact environment of fracturing pump | |
| CN220646744U (en) | Anti-freezing liquid-resistant water pump sealing gasket | |
| CN201875131U (en) | Self-tightening metal gasket | |
| CN220267919U (en) | Piston rubber sealing body | |
| CN213088472U (en) | Anti-loosening fastener | |
| CN205190736U (en) | Many times way metal seal gaskets | |
| CN220302733U (en) | Sealed type combined winding gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |