CN212322911U - Dustproof structure of relay - Google Patents
Dustproof structure of relay Download PDFInfo
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- CN212322911U CN212322911U CN202021752403.9U CN202021752403U CN212322911U CN 212322911 U CN212322911 U CN 212322911U CN 202021752403 U CN202021752403 U CN 202021752403U CN 212322911 U CN212322911 U CN 212322911U
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- sealing gasket
- relay
- boss
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Abstract
The utility model provides a dustproof structure of a relay, which comprises a shell dustproof structure and a tail sheet dustproof structure, wherein the shell dustproof structure is arranged between an outer cover and a base, and the tail sheet dustproof structure is arranged on a tail sheet in the base; in the dustproof structure of the shell, the end surface at the top of the base extends outwards along the side of the inner wall to form a circle of boss structure, the outer cover is buckled on the base, two ends of the bottom of the outer cover are respectively provided with an inwards concave structure which can be matched with two ends of the boss structure, and a sealing gasket is arranged between the outer cover and the base; the sealing gasket is arranged on the periphery of the boss structure in a surrounding mode, the shape of the inner side of the sealing gasket is matched with that of the outer side of the boss structure of the base, and the shape of the outer side of the sealing gasket is consistent with that of the outer side of the base. The utility model discloses through improving the structure and installed sealed the pad additional between base and the dustcoat, can with base boss, the crisscross cooperation of dustcoat indent structure, on the basis of guaranteeing with current safe type railway signal relay part interchangeability, improved the dustproof performance of relay and the contact reliability of contact in the field usage.
Description
Technical Field
The utility model relates to a relay manufacturing technology specifically is a dustproof construction of relay.
Background
In the process of storage, transportation and field use of the railway signal relay, dust and granular foreign matters can enter the relay through the notch due to the severe use environment, and the phenomenon of poor contact of the contact is frequently generated. After analysis, the contact shows that more foreign matters such as dust particles, fiber foreign matters and the like exist. Through the structural analysis to current railway signal relay, it may have two points to discover the source that the foreign matter appears in the relay inside: firstly, fiber foreign matters brought in by the existing relay rope binding process; and secondly, external dust and other pollutants enter through the ventilation holes or the redundant through holes of the dustproof pad.
The existing railway signal relay belongs to the protection of a non-dustproof structure, is influenced by the actual use environment, and the contact reliability of the contact can be influenced because the surface of the relay contact is easy to adsorb some tiny foreign impurities.
SUMMERY OF THE UTILITY MODEL
The inside contact reliability that has impurity foreign matter and can influence the contact of prior art in the railway signal relay is not enough, the to-be-solved problem of the utility model is to provide a can effectively avoid the inside relay's that gets into impurity foreign matter of railway signal relay dustproof construction.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a dustproof structure of a relay, which comprises a shell dustproof structure and a tail sheet dustproof structure, wherein the shell dustproof structure is arranged between an outer cover and a base, and the tail sheet dustproof structure is arranged on a tail sheet in the base; among the casing dustproof construction, base top terminal surface extends the outer round boss structure that extends of inner wall side direction, and the dustcoat lock is on the base, and dustcoat bottom both ends are equipped with respectively can with boss structure both ends complex indent structure, be equipped with sealed the pad between dustcoat and the base.
The sealing gasket is arranged on the periphery of the boss structure in a surrounding mode, the shape of the inner side of the sealing gasket is matched with that of the outer side of the boss structure of the base, and the shape of the outer side of the sealing gasket is consistent with that of the outer side of the base.
The thickness of the sealing gasket is smaller than the height of the boss.
And mounting holes are formed in the corresponding positions of the four corners of the outer cover, the sealing gasket and the base.
The tail piece dustproof structure is provided with a dustproof pad and is arranged on the tail piece of the contact group, and the edge part of the dustproof pad is in sealing fit with the inner wall of the base.
The positions of the dustproof pad corresponding to the tail pieces are provided with elongated holes which have the same quantity with the tail pieces and can be tightly matched with the tail pieces.
The utility model has the following beneficial effects and advantages:
1. the utility model discloses through improving the structure and having installed sealed the pad additional between base and the dustcoat, can with base boss, the crisscross cooperation of dustcoat indent structure, form casing dustproof construction, on the basis of guaranteeing with current safe type railway signal relay part interchangeability, improved the dustproof performance of relay, and the contact reliability of contact in the field usage.
2. The utility model discloses adopt the optional dustproof pad of elongated hole position and quantity to form on the tail piece of contact group, realize and the tail piece between tight fit, and dustproof pad and the close cooperation of keeping of base, can effectively form tail piece dustproof construction, the enclosed construction at contact group tail piece position has reduced the foreign matter that internals introduced, and it is inside still that the maximize has reduced external impurity, dust entering, has improved the contact reliability of the contact of relay.
Drawings
Fig. 1 is a sectional view of a dustproof structure of the relay of the present invention;
fig. 2 is an assembly schematic diagram of the dustproof structure casing of the relay of the present invention;
FIG. 3 is a schematic view of the structure of the middle housing of the present invention;
FIG. 4 is a schematic view of the structure of the middle sealing gasket of the present invention;
FIG. 5 is a schematic view of the structure of the base of the present invention;
fig. 6 is a schematic view of the structure of the middle dustproof pad of the present invention.
Wherein, 1 is the dustcoat, 2 is sealed pad, 3 is the base, 4 is dustproof pad, 5 is the tailchip.
Detailed Description
The invention will be further explained with reference to the drawings attached to the specification.
As shown in fig. 1-2, the utility model provides a dustproof structure of relay, which comprises a shell dustproof structure and a tail sheet dustproof structure, wherein the shell dustproof structure is arranged between an outer cover 1 (shown in fig. 3) and a base 3 (shown in fig. 5), and the tail sheet dustproof structure is arranged on a tail sheet 5 in the base 3; among the casing dustproof construction, 3 top end faces of base extend the inner wall side and extend outward a round boss structure, and dustcoat 1 lock is on base 3, and dustcoat 1 bottom both ends are equipped with respectively can with boss structure both ends complex indent structure, be equipped with sealed pad 2 between dustcoat 1 and the base 3.
As shown in fig. 4, the sealing gasket 2 is annularly arranged on the periphery of the boss structure, the inner side of the sealing gasket 2 is matched with the outer side of the boss structure of the base 3 in shape, and the outer side of the sealing gasket 2 is consistent with the outer side of the base 3 in shape.
The thickness of the sealing gasket 2 is smaller than the height of the lug boss; the corresponding positions of the four corners of the outer cover 1, the sealing gasket 2 and the base 3 are provided with mounting holes.
As shown in fig. 6, the tail piece dust-proof structure has a dust-proof pad 4, which is mounted on the tail piece 5 of the contact group, and the edge of the dust-proof pad 4 is in sealing fit with the inner wall of the base 3; the positions of the dustproof pad 4 corresponding to the tail pieces 5 are provided with elongated holes which have the same number with the tail pieces 5 and can be tightly matched with the tail pieces 5.
In the embodiment, the end surface of the top of the base 3 extends outwards along the side of the inner wall to form a circle of boss structure, the sealing gasket 2 is arranged on the outer side of the top of the base, and the boss structure plays a role in fixing the sealing gasket 2; the housing 1 is fitted to the gasket 2 and then tightened by screws. The mating structure between the housing 1, the gasket 2 and the base 3 is shown in fig. 2.
In order to further improve the dustproof performance of the relay at the tail piece part, the dustproof pad 4 with the optional through hole is arranged on the tail piece 5 of the contact group, so that the tight fit between the dustproof pad 4 and the tail piece can be realized, and the dustproof pad 4 and the base 3 are kept in close fit, so that a closed structure at the tail piece part of the contact group can be effectively formed, as shown in fig. 6.
In this embodiment, for example, the JWXC-1700 type dustproof relay is used, the specification of the rectangular notch where the dustproof pad 4 and the tail piece 5 are matched is 1mm × 7mm, and thus, after the assembly, the tail piece 5 and the dustproof pad 4 are tightly matched. The dustproof pad 4 is made of thermoplastic vulcanized rubber (TPV) with good elasticity.
Additionally, the utility model discloses cancelled the ventilation hole of 1 original designs of dustcoat, tie up rope groove and redundant through-hole, furthest avoids the dust to get into.
The utility model discloses can be applied to current safe type railway signal relay, need accomplish two points to the railway signal relay of different models: firstly, the through hole can be selected to select the dustproof pad 4, and the installation position of the through hole is unchanged; and secondly, the outer cover 1, the sealing gasket 2 and the base 3 are added, the outer cover 1 and the base 3 can be directly used, the installation positions of the outer cover and the base are unchanged, and the sealing gasket 2 is arranged between the base 3 and the outer cover 1. On the basis of ensuring the interchangeability with the existing safe railway signal relay part, the dustproof performance of the relay is improved, and the contact reliability of the contact in the field use process is improved.
Claims (6)
1. The utility model provides a dustproof construction of relay which characterized in that: the dustproof structure of the shell is arranged between the outer cover and the base, and the dustproof structure of the tail piece is arranged on the tail piece in the base; among the casing dustproof construction, base top terminal surface extends the outer round boss structure that extends of inner wall side direction, and the dustcoat lock is on the base, and dustcoat bottom both ends are equipped with respectively can with boss structure both ends complex indent structure, be equipped with sealed the pad between dustcoat and the base.
2. The relay dust-proof structure according to claim 1, characterized in that: the sealing gasket is arranged on the periphery of the boss structure in a surrounding mode, the shape of the inner side of the sealing gasket is matched with that of the outer side of the boss structure of the base, and the shape of the outer side of the sealing gasket is consistent with that of the outer side of the base.
3. The relay dust-proof structure according to claim 2, characterized in that: the thickness of the sealing gasket is smaller than the height of the boss.
4. The relay dust-proof structure according to claim 1, characterized in that: and mounting holes are formed in the corresponding positions of the four corners of the outer cover, the sealing gasket and the base.
5. The relay dust-proof structure according to claim 1, characterized in that: the tail piece dustproof structure is provided with a dustproof pad and is arranged on the tail piece of the contact group, and the edge part of the dustproof pad is in sealing fit with the inner wall of the base.
6. The relay dust-proof structure according to claim 5, characterized in that: the positions of the dustproof pad corresponding to the tail pieces are provided with elongated holes which have the same quantity with the tail pieces and can be tightly matched with the tail pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021752403.9U CN212322911U (en) | 2020-08-20 | 2020-08-20 | Dustproof structure of relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021752403.9U CN212322911U (en) | 2020-08-20 | 2020-08-20 | Dustproof structure of relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212322911U true CN212322911U (en) | 2021-01-08 |
Family
ID=74035954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021752403.9U Active CN212322911U (en) | 2020-08-20 | 2020-08-20 | Dustproof structure of relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212322911U (en) |
-
2020
- 2020-08-20 CN CN202021752403.9U patent/CN212322911U/en active Active
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