CN210839498U

CN210839498U - Filter with high sealing performance

Info

Publication number: CN210839498U
Application number: CN202020024117.4U
Authority: CN
Inventors: 裴建伟
Original assignee: Changzhou Wanquan Electromagnetic Shielding Technology Co ltd
Current assignee: Changzhou Wanquan Electromagnetic Shielding Technology Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-06-23
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses a filter with high sealing performance, which relates to the technical field of filters and comprises a filter body, wherein a shell is arranged outside the filter body and comprises a cover body and a bottom box, the cover body comprises a cover plate and a cover side plate which is arranged around the cover plate, and the cover side plate is provided with a bayonet; the bottom box comprises a bottom plate and a bottom side plate arranged on the bottom plate in a surrounding mode, the bottom side plate is provided with a clamping block connected with the bayonet buckle, and the side wall of the cover side plate is attached to the side wall of the bottom side plate. The utility model provides the high compactness and the leakproofness that lid and end box are connected reduce the entering of impurity such as outside dust, moisture, have guaranteed the normal work and the life of wave filter, make the filtering performance of wave filter stable, safe and reliable.

Description

Filter with high sealing performance

Technical Field

The utility model belongs to the technical field of the technique of wave filter and specifically relates to a wave filter that leakproofness is high is related to.

Background

The filter is a filter circuit consisting of a capacitor, an inductor and a resistor. The filter can effectively filter the frequency point of the specific frequency in the power line or the frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency.

Chinese patent No. CN203746999U discloses a filter, which comprises a cover plate and a cavity, wherein the cavity comprises an upward opening, the cover plate is fixed on the opening of the cavity, a self-locking tuning screw is fixed below the cover plate through a self-locking fixing device, the self-locking tuning screw rotates up and down to realize the function of adjusting frequency, the cavity is formed by die casting or machining, and a resonance rod is welded by solder or adhered by conductive adhesive at the bottom of the cavity to realize continuous contact between the resonance rod and the cavity.

The above prior art solutions have the following drawbacks: the apron only covers on the opening of cavity, and the tightness that apron and cavity are connected is lower, and sealed effect is limited, leads to impurity such as dust, moisture in the air to enter into the cavity easily inside, and then influences normal work of wave filter and life.

SUMMERY OF THE UTILITY MODEL

According to the not enough of prior art existence, the utility model aims at providing a wave filter that leakproofness is high has improved the compactness and the leakproofness that lid and end box are connected, reduces the entering of outside impurity, has guaranteed the normal work and the life of wave filter.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a filter with high sealing performance comprises a filter body, wherein a shell is arranged outside the filter body and comprises a cover body and a bottom box, the cover body comprises a cover plate and a cover side plate surrounding the cover plate, and the cover side plate is provided with a bayonet; the bottom box comprises a bottom plate and a bottom side plate arranged on the bottom plate in a surrounding mode, the bottom side plate is provided with a clamping block connected with the bayonet buckle, and the side wall of the cover side plate is attached to the side wall of the bottom side plate.

Through adopting above-mentioned technical scheme, the filtering body is installed in the shell, makes lid and end box be close to the motion, is connected through bayonet socket and fixture block buckle, is connected lid and end box lock fixedly, and the lateral wall of lid curb plate and the lateral wall laminating of bottom side plate make the area of contact of lid and end box great, have improved the compactness and the leakproofness that lid and end box are connected, and sealed effect is high, and the difficult condition that produces impurity entering shell inside has guaranteed the normal work and the life of wave filter, safe and reliable. In addition, the buckle is connected, and the equipment of lid and end box is convenient for when the fixity is high.

The present invention may be further configured in a preferred embodiment as: the lid curb plate orientation the tip of bottom plate is equipped with sealed arch, the lateral wall of bottom curb plate is fixed with solid fixed ring, gu fixed ring orientation sealed recess has been seted up to the one side of lid curb plate, sealed protruding nestification in sealed recess.

Through adopting above-mentioned technical scheme, make the lid be close to with end box, go into the bayonet socket with the fixture block card and carry out the joint, with lid and end box lock, sealed protruding nestification is in sealed recess, seals the junction of lid curb plate and end curb plate, reduces the inside influence condition of using that impurity got into the shell, safe and reliable.

The present invention may be further configured in a preferred embodiment as: the inner bottom of the sealing groove is nested with a sealing ring, and the sealing bulge is abutted to the sealing ring.

Through adopting above-mentioned technical scheme, sealed arch nestification is in sealed recess, and sealed arch is contradicted with the sealing washer of sealed recess bottom, and the sealing washer has elasticity, has further improved sealed protruding sealed effect with sealed recess complex.

The present invention may be further configured in a preferred embodiment as: the side face of the clamping block facing the cover plate is provided with an inclined guide inclined plane.

Through adopting above-mentioned technical scheme, the lid is close to the lock with end box, goes into the bayonet socket with the fixture block card and carries out the joint, and the direction inclined plane makes the motion more smooth and easy, and the fixture block of being convenient for carries out the joint with the bayonet socket, and the equipment is convenient laborsaving.

The present invention may be further configured in a preferred embodiment as: and one end of the cover side plate, which faces the bottom plate, is provided with an insertion inclined plane matched with the guide inclined plane.

Through adopting above-mentioned technical scheme, go into the bayonet socket with the fixture block card and carry out the joint, grafting inclined plane and direction inclined plane cooperation further make the motion more smooth and easy, reduce the resistance in the assembling process, make things convenient for the equipment lock of lid and end box.

The present invention may be further configured in a preferred embodiment as: and the outer wall of the shell is provided with a damping cushion pad.

Through adopting above-mentioned technical scheme, the shock attenuation blotter carries out the shock attenuation buffering at the outer wall of shell, and the vibrations that reduce external environment cause the influence to the work of the filtering body in the shell, make the filtering performance of wave filter stable, safe and reliable.

The present invention may be further configured in a preferred embodiment as: the outer wall of the shell is provided with a connecting plate, and the connecting plate is provided with a connecting hole.

Through adopting above-mentioned technical scheme, connecting plate and connecting hole supply wave filter and outside to carry out erection joint, simple to operate, it is simple convenient.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the filtering body, a housing, the lid, end box, the apron, the lid curb plate, the bayonet socket, the bottom plate, the setting of end curb plate and fixture block, the filtering body is installed in the shell, make the lid be close to the motion with end box, be connected with the fixture block buckle through the bayonet socket, it is fixed to connect lid and end box lock, the lateral wall of lid curb plate and the lateral wall laminating of bottom curb plate, make the area of contact of lid and end box great, the compactness and the leakproofness that lid and end box are connected have been improved, sealed effect is high, difficult production impurity gets into the inside condition of shell, the normal work and the life of wave filter have been guaranteed, safety and reliability. In addition, the buckle is connected, and the equipment of lid and end box is convenient for when the fixity is high.

2. Through sealed protruding and solid fixed ring's setting, make the lid be close to with end box, go into the bayonet socket with the fixture block card and carry out the joint, with lid and end box lock, sealed protruding nestification is sealed in sealed recess to the junction of lid curb plate and end curb plate, reduces the inside condition of influencing the use that impurity got into the shell, safe and reliable.

3. Through the setting of shock attenuation blotter, shock attenuation blotter carries out the shock attenuation buffering at the outer wall of shell, and the vibrations that reduce external environment cause the influence to the work of the filtering body in the shell, make the filtering performance of wave filter stable, safe and reliable.

Drawings

Fig. 1 is a schematic diagram of the overall explosion structure of the present embodiment.

Fig. 2 is a schematic structural view showing the insertion slope and the sealing protrusion of the cover side plate.

Fig. 3 is an assembly structure diagram of the present embodiment.

In the figure, 1, a filter body; 3. a cover body; 31. a cover plate; 32. a cover side plate; 321. a bayonet; 322. sealing the protrusion; 323. inserting an inclined plane; 4. a bottom case; 41. a base plate; 42. a bottom side plate; 421. a clamping block; 422. a guide slope; 423. a fixing ring; 424. sealing the groove; 425. a seal ring; 5. a shock absorbing cushion; 61. a connecting plate; 62. and connecting the holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the utility model discloses a filter that leakproofness is high, including the shell with install the filtering body 1 in the shell, the shell includes the lid 3 and the end box 4 of lock, the outer wall of shell is fixed with shock attenuation blotter 5, the blotter is made by rubber materials. Filter body 1 installs in the shell, and shock attenuation blotter 5 carries out the shock attenuation buffering at the outer wall of shell, and the vibrations that reduce external environment cause the influence to the work of filter body 1 in the shell, make the filtering performance of wave filter stable, be difficult for receiving outside influence, safe and reliable.

Referring to fig. 1 and 2, the cover 3 includes a cover plate 31 and a cover side plate 32 surrounding the cover plate 31, a connection plate 61 is fixed to an outer wall of the cover 3, and the connection plate 61 is provided with a connection hole 62. The side wall of the cover side plate 32 is provided with a bayonet 321, and one end of the cover side plate 32 facing the bottom plate 41 is provided with an inclined insertion inclined surface 323. The filter body 1 is installed in the bottom box 4, the bottom box 4 includes a bottom plate 41 and a bottom side plate 42 surrounding the bottom plate 41, an outer wall of the bottom side plate 42 is fixed with a fixture block 421, the fixture block 421 is connected to the bayonet 321 in a snap-fit manner, an inclined guide inclined surface 422 is arranged on a side surface of the fixture block 421 facing the cover plate 31, and the guide inclined surface 422 is matched with the insertion inclined surface 323. The inner side wall of the cover side plate 32 is attached to the outer side wall of the bottom side plate 42.

Referring to fig. 1, 2 and 3, making lid 3 and end box 4 be close to the motion, the inside wall of lid curb plate 32 slides with the lateral wall laminating of curb plate 42, goes into bayonet 321 with fixture block 421 card and carries out the joint, connects lid 3 and end box 4 fixedly, and grafting inclined plane 323 and direction inclined plane 422 cooperation make the motion more smooth and easy, reduce the resistance in the equipment process, make things convenient for the equipment lock of lid 3 and end box 4, convenient laborsaving. The lateral wall of lid curb plate 32 and the lateral wall laminating of end curb plate 42 for the area of contact of lid 3 and end box 4 is great, has improved the compactness and the leakproofness that lid 3 and end box 4 are connected, and sealed effect is high, and the difficult condition that produces impurity entering shell inside has guaranteed the normal work and the life of wave filter, safe and reliable. In addition, the buckle is connected, and the equipment of lid 3 and end box 4 is convenient for when the fixity is high. The connecting plate 61 and the connecting hole 62 are used for installing and connecting the filter with the outside, and the installation is convenient, flexible and convenient.

Referring to fig. 1 and 2, an annular sealing protrusion 322 is disposed at an end of the cover side plate 32 facing the bottom plate 41, a fixing ring 423 is fixed on an outer wall of the bottom side plate 42, an annular sealing groove 424 is disposed at a surface of the fixing ring 423 facing the cover side plate 32, an annular sealing ring 425 is nested at an inner bottom of the sealing groove 424, the sealing ring 425 is made of a rubber material, the sealing protrusion 322 is nested in the sealing groove 424, and the sealing protrusion 322 abuts against the sealing ring 425 at the bottom of the sealing groove 424. Sealing protrusion 322 and sealing groove 424 cooperate, seal the junction of lid curb plate 32 and bottom side plate 42, reduce the inside condition that influences the filter use that impurity got into the shell, sealing washer 425 has elasticity, has further improved sealing protrusion 322 and sealing groove 424 complex sealed effect, safe and reliable.

The implementation principle of the above embodiment is as follows: make lid 3 and end box 4 be close to the motion, go into bayonet 321 with fixture block 421 and carry out the joint, connect lid 3 and end box 4 lock fixed, peg graft inclined plane 323 and direction inclined plane 422 cooperation, make the motion more smooth and easy, reduce the resistance in the equipment process. The side wall of the cover side plate 32 is attached to the side wall of the bottom side plate 42, so that the contact area between the cover body 3 and the bottom box 4 is large, and the tightness and the sealing performance of the connection between the cover body 3 and the bottom box 4 are improved. The sealing protrusion 322 is nested in the sealing groove 424, the sealing protrusion 322 abuts against the sealing ring 425, the joint of the cover side plate 32 and the bottom side plate 42 is sealed, and the sealing effect is further improved in cooperation. The sealing effect is high, impurities are not easy to generate to enter the shell, the use condition of the filter is not influenced, the normal work and the service life of the filter are ensured, and the sealing device is safe and reliable.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A filter with high sealing performance comprises a filter body (1), and is characterized in that: a shell is arranged outside the filtering body (1), the shell comprises a cover body (3) and a bottom box (4), the cover body (3) comprises a cover plate (31) and a cover side plate (32) surrounding the cover plate (31), and the cover side plate (32) is provided with a bayonet (321); the bottom box (4) comprises a bottom plate (41) and a bottom side plate (42) arranged on the bottom plate (41) in a surrounding mode, a clamping block (421) connected with the clamping opening (321) in a clamping mode is arranged on the bottom side plate (42), and the side wall of the cover side plate (32) is attached to the side wall of the bottom side plate (42).

2. A high-hermeticity filter according to claim 1, wherein: lid curb plate (32) orientation the tip of bottom plate (41) is equipped with sealed arch (322), the lateral wall of end curb plate (42) is fixed with solid fixed ring (423), gu fixed ring (423) orientation sealed recess (424) have been seted up to the one side of lid curb plate (32), sealed arch (322) nest in sealed recess (424).

3. A high-hermeticity filter according to claim 2, wherein: the inner bottom of the sealing groove (424) is nested with a sealing ring (425), and the sealing protrusion (322) is abutted against the sealing ring (425).

4. A high-hermeticity filter according to claim 1, wherein: the side surface of the fixture block (421) facing the cover plate (31) is provided with an inclined guide inclined surface (422).

5. A high-hermeticity filter according to claim 4, wherein: one end, facing the bottom plate (41), of the cover side plate (32) is provided with an insertion inclined surface (323) matched with the guide inclined surface (422).

6. A high-hermeticity filter according to claim 1, wherein: and the outer wall of the shell is provided with a damping cushion (5).

7. A high-hermeticity filter according to claim 1, wherein: the outer wall of shell is equipped with connecting plate (61), connecting hole (62) have been seted up in connecting plate (61).