CN211557865U - Shielding case for filter - Google Patents

Abstract

The utility model discloses a shield cover for filter, which comprises a housin, the casing is upper end open-ended quadrangular tubular structure, through screw fixedly connected with lid on the last port of casing, be provided with the through wires hole on the lid, the inside bottom of casing sets up installs the diving board, it installs the spring to set up between diving board and the casing bottom, casing and lid are made for nonrust steel, have plated the tin membrane on the internal surface of casing and lid. The utility model relates to a simple structure, the cartridge is convenient, sealed waterproof's shield cover for filter.

Description

Shielding case for filter

Technical Field

The utility model relates to a wave filter casing field specifically is a shield cover for wave filter.

Background

The filter is a device for filtering waves, is a filter circuit device consisting of a capacitor, an inductor and a resistor, can effectively filter a frequency point of a specific frequency in a power line or frequencies except the frequency point to obtain a power signal of the specific frequency, or eliminate the power signal after a specific frequency, and the filter is easily interfered by the external power signal when in use, thus reducing the function of the filter for inhibiting EMI and affecting the realization of signal transmission, and the signal in the filter can also interfere the signal transmission of other specific electronic components, and the shielding device in the prior art has poor shielding effect and easy signal leakage, in addition, it is difficult to shield the filter from interfering with other circuit elements while shielding external interference signals, and therefore, a novel shielding case for a filter is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shield cover for filter to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a shield cover for filter, includes the casing, the casing is upper end open-ended quadrangular tubular structure, through screw fixedly connected with lid on the last port of casing, be provided with the through wires hole on the lid, the inside bottom of casing sets up installs the diving board, it installs the spring to set up between diving board and the casing bottom, casing and lid are made for stainless steel, have plated the tin membrane on the internal surface of casing and lid.

Preferably, a set of rod cover of fixedly connected with on the lower terminal surface of diving board, a set of dead lever of casing bottom fixedly connected with, dead lever and rod cover sliding fit installation, the spring housing is established on the dead lever, the lower extreme of rod cover is provided with the spring holder, the both ends of spring are contradicted respectively and are connected on spring holder and casing.

Preferably, the threading hole is round platform-shaped, a rubber ring is clamped in the threading hole, and a threading hole is formed in the rubber ring.

Preferably, a set of plug sockets are arranged on the inner side wall of the shell, openings which expand outwards are arranged at the upper ends of the plug sockets, and a set of plug columns are fixedly connected to the cover body and are in plug fit with the plug sockets.

Preferably, the upper port of casing is provided with the connecting strip all around, be provided with a plurality of strengthening ribs between connecting strip and the casing lateral wall, be provided with a plurality of screw holes on the connecting strip, be provided with a plurality of counter bores on the lid, the screw is worn to be equipped with in the counter bore, pole portion threaded connection of screw is in the screw hole.

Preferably, the lower terminal surface of lid and the up end of connecting strip are provided with the joint groove, and the joint has the sealing strip in the joint groove of upper and lower both sides.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in, the continuous sealed shield cover is constituteed to casing and lid, and stainless steel makes and the tin film makes the shield cover have good signal shielding effect, and the lid passes through the screw to be connected with the casing and makes things convenient for the dismouting, and the shell plate compresses tightly the wave filter after assembling the wave filter in the shield cover, increases the stability of wave filter, and the through wires hole is used for the wire rod to pass the lid. The fixed rod and the rod sleeve are installed in a sliding fit mode, and the lifting stability of the elastic plate can be improved. The wire rod passes through from crossing the line hole, then in passing through the line hole with the rubber circle joint, can improve the sealed, waterproof performance of shield cover. The plug-in post is inserted and matched in the plug-in seat, so that the cover body and the shell can be conveniently and accurately butted. The screw realizes the detachable connection of the shell and the cover body. The sealing strip is used for improving the sealed effect of lid and casing junction. The utility model relates to a simple structure, the cartridge is convenient, sealed waterproof's shield cover for filter.

Drawings

Fig. 1 is a schematic structural view of a filter shield;

fig. 2 is a partially enlarged view of fig. 1 at K.

In the figure: 1-shell, 2-cover, 3-threading hole, 4-rubber ring, 5-threading hole, 6-socket, 7-socket column, 8-opening, 9-elastic plate, 10-rod sleeve, 11-fixed rod, 12-spring seat, 13-spring, 14-connecting strip, 15-reinforcing rib, 16-threaded hole, 17-countersunk hole, 18-screw, 19-clamping groove and 20-sealing strip.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution:

the utility model provides a shield cover for filter, includes casing 1, casing 1 is upper end open-ended quadrangular tubular structure, through screw fixedly connected with lid 2 on casing 1's the last port, be provided with through wires hole 3 on the lid 2, the inside bottom of casing 1 sets up installs springboard 9, set up between springboard 9 and the 1 bottom of casing and install spring 13, casing 1 and lid 2 are made for stainless steel material, have plated the tin membrane on casing 1 and the internal surface of lid 2.

Casing 1 and lid 2 constitute continuous sealed shield cover, and stainless steel material makes and tin film makes the shield cover have good signal shielding effect, and lid 2 is connected through screw and casing 1 and makes things convenient for the dismouting, and the shell fragment 9 compresses tightly the wave filter after assembling the wave filter in the shield cover, increases the stability of wave filter, and through wires hole 3 is used for the wire rod to pass lid 2.

Preferably, a set of rod sleeve 10 is fixedly connected to the lower end face of the elastic plate 9, a set of fixing rod 11 is fixedly connected to the bottom of the casing 1, the fixing rod 11 is installed in sliding fit with the rod sleeve 10, the spring 13 is sleeved on the fixing rod 11, the lower end of the rod sleeve 10 is provided with a spring seat 12, and two ends of the spring 13 are respectively abutted to the spring seat 12 and the casing 1.

The fixing rod 11 is installed in sliding fit with the rod sleeve 10, so that the lifting stability of the elastic plate 9 can be improved.

Preferably, the threading hole 3 is round table-shaped, the rubber ring 4 is clamped in the threading hole 3, and the thread passing hole 5 is formed in the rubber ring 4.

The wire rod passes through the wire passing hole 5, and then the rubber ring 4 is clamped in the wire passing hole 3, so that the sealing and waterproof performances of the shielding cover can be improved.

Preferably, a set of plug sockets 6 is arranged on the inner side wall of the housing 1, an opening 8 which expands outwards is arranged at the upper end of the plug socket 6, a set of plug posts 7 is fixedly connected to the cover body 2, and the plug posts 7 are plugged and matched in the plug sockets 6.

The inserting column 7 is inserted and matched in the inserting seat 6, so that the cover body 2 and the shell 1 can be conveniently and accurately butted.

Preferably, a connecting strip 14 is arranged around the upper port of the casing 1, a plurality of reinforcing ribs 15 are arranged between the connecting strip 14 and the side wall of the casing 1, a plurality of threaded holes 16 are formed in the connecting strip 14, a plurality of counter bores 17 are formed in the cover body 2, screws 18 are arranged in the counter bores 17 in a penetrating mode, and rod portions of the screws 18 are in threaded connection with the threaded holes 16.

The screws 18 enable the detachable connection of the housing 1 to the cover 2.

Preferably, the lower end surface of the cover body 2 and the upper end surface of the connecting strip 14 are provided with clamping grooves 19, and sealing strips 20 are clamped in the clamping grooves 19 on the upper side and the lower side.

The sealing strip 20 is used for improving the sealing effect at the joint of the cover body 2 and the shell body 1.

The utility model discloses a theory of operation is: casing 1 and lid 2 constitute continuous sealed shield cover, and stainless steel material makes and tin film makes the shield cover have good signal shielding effect, and lid 2 is connected through screw and casing 1 and makes things convenient for the dismouting, and the shell fragment 9 compresses tightly the wave filter after assembling the wave filter in the shield cover, increases the stability of wave filter, and through wires hole 3 is used for the wire rod to pass lid 2. The fixing rod 11 is installed in sliding fit with the rod sleeve 10, so that the lifting stability of the elastic plate 9 can be improved. The wire rod passes through the wire passing hole 5, and then the rubber ring 4 is clamped in the wire passing hole 3, so that the sealing and waterproof performances of the shielding cover can be improved. The inserting column 7 is inserted and matched in the inserting seat 6, so that the cover body 2 and the shell 1 can be conveniently and accurately butted. The screws 18 enable the detachable connection of the housing 1 to the cover 2. The sealing strip 20 is used for improving the sealing effect at the joint of the cover body 2 and the shell body 1.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (6)

1. A filter shield case comprises a housing (1), and is characterized in that: casing (1) is upper end open-ended quadrangular tubular structure, through screw fixedly connected with lid (2) on the last port of casing (1), be provided with through wires hole (3) on lid (2), the inside bottom setting of casing (1) installs springboard (9), spring (13) are installed in setting up between springboard (9) and casing (1) bottom, casing (1) and lid (2) are made for stainless steel, have plated the tin membrane on the internal surface of casing (1) and lid (2).

2. The filter shield according to claim 1, wherein: fixedly connected with a set of rod cover (10) on the lower terminal surface of diving board (9), casing (1) bottom fixedly connected with a set of dead lever (11), dead lever (11) and rod cover (10) sliding fit installation, spring (13) cover is established on dead lever (11), the lower extreme of rod cover (10) is provided with spring holder (12), the both ends of spring (13) are contradicted respectively and are connected on spring holder (12) and casing (1).

3. The filter shield according to claim 1, wherein: the wire passing hole (3) is in a round table shape, the rubber ring (4) is connected in the wire passing hole (3) in a clamping mode, and the wire passing hole (5) is formed in the rubber ring (4).

4. The filter shield according to claim 1, wherein: a group of plug sockets (6) are arranged on the inner side wall of the shell (1), an opening (8) which expands outwards is formed in the upper end of each plug socket (6), a group of plug columns (7) are fixedly connected to the cover body (2), and the plug columns (7) are matched in the plug sockets (6) in a plug-in mode.

5. The filter shield according to claim 1, wherein: the utility model discloses a novel energy-saving lamp, including casing (1), connecting strip (14) are provided with all around to the last port of casing (1), be provided with a plurality of strengthening ribs (15) between connecting strip (14) and casing (1) lateral wall, be provided with a plurality of screw holes (16) on connecting strip (14), be provided with a plurality of counter bores (17) on lid (2), screw (18) are worn to be equipped with in counter bore (17), pole portion threaded connection of screw (18) is in screw hole (16).

6. The filter shield according to claim 5, wherein: the lower terminal surface of lid (2) and the up end of connecting strip (14) are provided with joint groove (19), have joint sealing strip (20) in the joint groove (19) of upper and lower both sides.

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