CN217207720U

CN217207720U - A dual protection seal structure and car end box for car end box

Info

Publication number: CN217207720U
Application number: CN202220923933.8U
Authority: CN
Inventors: 沈帅一; 周青; 王海波; 吕浪平; 汤勋华
Original assignee: ZHEJIANG YONGGUI ELECTRIC EQUIPMENT CO Ltd
Current assignee: ZHEJIANG YONGGUI ELECTRIC EQUIPMENT CO Ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-08-16
Anticipated expiration: 2032-04-20

Abstract

The utility model discloses a dual protection seal structure and car end box for car end box. The double-protection sealing structure comprises a sealing strip and a sealing gasket. The sealing strip and the sealing gasket are both arranged between the box cover and the box body of the vehicle end box. A first transverse edge is arranged on the inner side of the opening of the box body; the edge of the first transverse edge is provided with a first vertical edge. The bottom of the edge of the box cover is provided with a second vertical edge; and a second transverse edge is arranged at the bottom edge of the second vertical edge. The gasket is disposed between the first and second lateral edges. And a sealing strip is arranged at the top of the first vertical edge on the box body. The sealing strip is pressed against the bottom surface of the box cover. The utility model is provided with two layers of sealing structures between the box body and the box cover, and the position of the sealing strip which is used as the second layer of sealing structure at the inner side is higher than the position of the sealing strip which is used as the first layer of sealing structure at the outer side; thus, the vehicle end box still has reliable waterproofness in the event of gasket failure.

Description

A dual protection seal structure and car end box for car end box

Technical Field

The utility model belongs to the technical field of the rail vehicle cross-over connection, concretely relates to a dual protection seal structure and car end box for car end box.

Background

Under the large background of carbon peak reaching and carbon neutralization, public transportation trip water channel formation is encouraged and developed, and urban rail transit is accompanied by increasingly mature technology, is not only pursued by various domestic large cities, but also begins to be continuously exported overseas as a gold business card in China. Due to a plurality of application scenes, the types of trains are more and more, including subways, light rails, empty rails, maglev trains, trams and the like, and although different vehicle types are designed in different places, the common points are formed by connecting single train vehicles. The connection part between vehicles is called a jumper system, the jumper system mainly comprises a jumper and a vehicle end box, and the jumper is used for power transmission and signal connection between the vehicles; the car end box then mainly plays the effect of being connected the interior and the outer cable of car, and the car end box is inside can design the terminal strip, and the connector can be hung to the outside, and they are used for the breakpoint of line connection. Therefore, the number of related circuits in the box is large, the requirement on the protection level is high, particularly for some types of trains, the end box of the train is arranged at the top of the train body, the rainwater impact is larger, and the protection requirement is often required to reach more than IP 67. At the moment, if the sealing structure of the vehicle end box is unreliable or fails occasionally, water flow enters the box body to cause circuit failure, and the running safety of the vehicle is affected.

Disclosure of Invention

An object of the utility model is to provide a double protection seal structure and car end box for car end box.

In a first aspect, the utility model provides a dual protection seal structure for car end box, including sealing strip and sealed the pad. The sealing strip and the sealing gasket are both arranged between the box cover and the box body of the vehicle end box. A first transverse edge is arranged on the inner side of the opening of the box body; the edge of the first transverse edge is provided with a first vertical edge. The bottom of the edge of the box cover is provided with a second vertical edge; and a second transverse edge is arranged at the bottom edge of the second vertical edge. And under the state that the box cover and the box body are matched together, the second vertical edge on the box cover is positioned on the outer side of the first vertical edge on the box body. The second transverse edge on the box cover is positioned right above the first transverse edge on the box body. The gasket is disposed between the first and second lateral edges. The sealing strip is arranged on the top of the first vertical edge on the box body. The sealing strip is pressed against the bottom surface of the box cover.

Preferably, the double-protection sealing structure for the vehicle end box further comprises a blind hole threaded sleeve and a bolt. A plurality of blind hole swivel nuts are all fixed in the below at the first horizontal border of box. The top of the blind hole thread insert is provided with a threaded hole. The threaded hole is a blind hole. The bolt penetrates through the second transverse edge on the box cover, the sealing gasket and the first transverse edge of the box body and is screwed with the threaded hole in the blind hole thread insert.

Preferably, the blind hole thread insert is arranged in a positioning stepped hole at the bottom surface of the first transverse edge of the box body. The top of the blind hole thread insert is in a stepped shaft shape. The step surface of the blind hole thread insert is propped against the step surface of the positioning stepped hole. The small-diameter section of the blind hole thread insert penetrates through the positioning stepped hole and extends out of the outer side of the first transverse edge.

Preferably, the top of the blind hole thread insert penetrates through the first transverse edge of the box body, and the height of the blind hole thread insert extending out of the first transverse edge is smaller than the thickness of the sealing gasket. The junction of blind hole swivel nut and box sets up sealedly.

Preferably, the gasket is bonded to the top surface of the first lateral edge of the tank;

preferably, the weather strip is composed of a sealing portion and a U-shaped clamping portion which are integrally formed. The top edge of the U-shaped clamping part is connected with the bottom surface of the sealing part. The opening of U type clamping part sets up down to press from both sides at the both sides on the first vertical border of box.

Preferably, the sealing portion is provided in the hollow.

Preferably, the first transverse edge forms an included angle of 0-60 degrees with the horizontal plane.

The second aspect, the utility model provides a car end box, it includes case lid, box to and install the dual protection seal structure between case lid and box.

The utility model has the advantages that:

1. the utility model is provided with two layers of sealing structures between the box body and the box cover, and the position of the sealing strip which is used as the second layer of sealing structure at the inner side is higher than the position of the sealing strip which is used as the first layer of sealing structure at the outer side; thus, in the event of gasket failure, the vehicle end box remains reliably waterproof because the water flow is difficult to break up through the seal strip.

2. The threaded hole for connecting the box body and the box cover in the application adopts the blind hole, so that the possibility of moisture infiltration in the threaded hole is avoided, and the waterproof reliability is further improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the vehicle end box provided by the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

fig. 3 is a schematic view of a partial structure of the middle double-protection sealing structure of the present invention.

Detailed Description

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

As shown in fig. 1, 2 and 3, the vehicle end box comprises a box cover 1, a box body 2 and a double-protection sealing structure arranged at the joint of the box cover 1 and the box body 2. The top of the box body 2 is provided with an opening. The box cover 1 is arranged at the opening of the box body 2 and used for sealing the inner cavity of the box body 2 and protecting components in the box body 2. The opening of the box body 2 and the edge of the box cover 1 are Z-shaped structures and are mutually matched and sleeved together.

The Z type structure of 2 openings on box specifically does: the top edge of the side plate 2-1 of the box body 2 is provided with a first transverse edge 2-2 which is turned inwards; the edge of the first transverse edge 2-2 far away from the side plate 2-1 is provided with a first vertical edge 2-3 which is turned upwards. The side plate 2-1, the first transverse edge 2-2 and the first vertical edge 2-3 form a Z-shaped structure on the box body 2.

The Z-shaped structure of the box cover 1 is specifically as follows: a second vertical edge 1-2 which is turned downwards is arranged at the edge of a top cover plate 1-1 of the box cover 1; the bottom edge of the second vertical edge 1-2 is provided with a second transverse edge 1-3 which is turned outwards.

Under the state that the box cover 1 and the box body 2 are matched together, the second vertical edge 1-2 on the box cover 1 is sleeved outside the first vertical edge 2-3 on the box body 2. The second transverse edge 1-3 on the cover 1 is located directly above the first transverse edge 2-2 on the body 2.

The double-protection sealing structure comprises a sealing strip 3, a sealing gasket 4 and a blind hole thread insert 5. The sealing gasket 4 is annular and has a shape corresponding to the shape of the first and second lateral edges 2-2 and 1-3. The sealing gasket 4 is arranged between the first transverse edge 2-2 and the second transverse edge 1-3.

The sealing strip 3 adopts a self-clamping structure, is annular and is arranged at the top of the first vertical edge of the box body 2. The weather strip 3 is composed of a sealing portion and a U-shaped clamping portion which are integrally formed. The top edge of the U-shaped clamping part is connected with the bottom surface of the sealing part. The opening of the U-shaped clamping part is arranged downwards and is sleeved on two sides of the first vertical edge of the box body 2. Two medial surfaces of U type clamping part support the both sides face at first vertical border respectively, realize sealing strip 3 and box 2's stable connection. The sealing part is arranged in a hollow mode, and the deformation capacity of the sealing part is improved. The top surface of the sealing part is propped against the inner side surface of the top cover plate 1-1 of the box cover 1 under the state that the box cover 1 and the box body 2 are matched together.

In the embodiment, the sealing gasket 4 is made of EPDM material with the thickness of 5mm, the designed compression amount is 2-3mm, and the sealing gasket is adhered to the top of the first transverse edge 2-2 of the box body 2 through glue; when the box cover 1 and the box body 2 are locked, the second transverse edge 1-3 of the box cover 1 can compress the sealing gasket downwards, and the compressed sealing gasket can effectively prevent water flow from entering the box body 2 from the outside of the box body 2, which is the first heavy-sealing protection structure of the embodiment; the sealing strip can effectively press from both sides tightly on 2 protruding edges of box through self structural feature, and when case lid 1 and box 2 locked, the internal surface of case lid 1 just can extrude with the sealing strip, and the sealing strip after receiving the extrusion forms the sealed protective structure of second way.

A plurality of positioning stepped holes are uniformly arranged on the bottom surface of the first transverse edge 2-2 of the box body 2. The positioning step hole extends through the first lateral edge 2-2. And a blind hole threaded sleeve 5 is fixedly welded in each positioning stepped hole (the welding structure enables the joint of the blind hole threaded sleeve 5 and the box body 2 to be sealed). The top of the blind hole thread insert 5 is in a stepped shaft shape. The step surface of the blind hole thread insert 5 is propped against the step surface of the positioning step hole. The small-diameter section of the blind hole thread insert 5 penetrates through the positioning stepped hole and extends out of the first transverse edge 2-2. The center of the top surface of the blind hole thread insert 5 is provided with a threaded hole. A plurality of mounting holes are arranged on the second transverse edge 1-3 of the box cover 1. The mounting holes are respectively aligned with the threaded holes on the blind hole thread sleeves 5. Each blind hole thread insert 5 corresponds to a bolt 6. The bolt 6 passes through the corresponding mounting holes on the sealing gasket 4 and the box cover 1 and is screwed with the threaded hole on the blind hole thread sleeve 5.

In this embodiment, because the screw hole on the blind hole swivel nut 5 is the blind hole structure, so can prevent effectively that rivers from getting into 2 insides of box from the fastener position, designed ladder limit structure during the swivel nut welding, avoided the too big sealed pad of extruding of screw torsion. In addition, the concave Z-shaped structure of the opening of the box body 2 ensures that the sealing strip 3 which is positioned at the inner side of the sealing gasket 4 and used as a second layer of protection is higher than the sealing gasket 4; under this kind of structure, even sealed 4 inefficacy as the first heavy protection, a small amount of rivers are difficult to break through from bottom to top as the sealing strip 3 of second heavy protection to show the sealed effect that has improved this embodiment.

Claims

1. The utility model provides a dual protection seal structure for car end box which characterized in that: comprises a sealing strip (3) and a sealing gasket (4); the sealing strip (3) and the sealing gasket (4) are both arranged between the box cover (1) and the box body (2) of the vehicle end box; a first transverse edge (2-2) is arranged on the inner side of the opening of the box body (2); a first vertical edge (2-3) is arranged at the edge of the first transverse edge (2-2); the bottom of the edge of the box cover (1) is provided with a second vertical edge (1-2); a second transverse edge (1-3) is arranged at the bottom edge of the second vertical edge (1-2); under the state that the box cover (1) and the box body (2) are matched together, a second vertical edge (1-2) on the box cover (1) is positioned at the outer side of a first vertical edge (2-3) on the box body (2); the second transverse edge (1-3) on the box cover (1) is positioned right above the first transverse edge (2-2) on the box body (2); the sealing gasket (4) is arranged between the first transverse edge (2-2) and the second transverse edge (1-3); the sealing strip (3) is arranged at the top of the first vertical edge (2-3) on the box body (2); the sealing strip (3) is propped against the bottom surface of the box cover.

2. The double-protection sealing structure for the vehicle end box according to claim 1, wherein: the blind hole screw sleeve is characterized by also comprising a blind hole screw sleeve (5) and a bolt (6); the blind hole thread sleeves (5) are all fixed below the first transverse edge (2-2) of the box body (2); the top of the blind hole thread insert (5) is provided with a threaded hole; the threaded hole is a blind hole; the bolt (6) penetrates through the second transverse edge (1-3) on the box cover (1), the sealing gasket (4) and the first transverse edge (2-2) of the box body (2) and is screwed with a threaded hole in the blind hole thread sleeve (5).

3. The double-protection sealing structure for the vehicle end box according to claim 2, wherein: the blind hole thread insert (5) is arranged in a positioning stepped hole on the bottom surface of the first transverse edge (2-2) of the box body (2); the top of the blind hole thread sleeve (5) is in a stepped shaft shape; the step surface of the blind hole thread insert (5) is propped against the step surface of the positioning step hole; the small-diameter section of the blind hole thread insert (5) penetrates through the positioning stepped hole and extends out of the first transverse edge (2-2).

4. The double-protection sealing structure for the vehicle end box according to claim 2, wherein: the top of the blind hole thread insert (5) penetrates through the first transverse edge (2-2) of the box body (2), and the height of the blind hole thread insert (5) extending out of the first transverse edge (2-2) is smaller than the thickness of the sealing gasket (4); the junction of the blind hole thread insert (5) and the box body (2) is sealed.

5. The double-protection sealing structure for the vehicle end box according to claim 1, wherein: the sealing gasket (4) is adhered to the top surface of the first transverse edge (2-2) of the box body (2).

6. The double-protection sealing structure for the vehicle end box according to claim 1, wherein: the sealing strip (3) consists of a sealing part and a U-shaped clamping part which are integrally formed; the top edge of the U-shaped clamping part is connected with the bottom surface of the sealing part; the opening of the U-shaped clamping part is arranged downwards and clamped at two sides of the first vertical edge of the box body (2).

7. The double-protection sealing structure for the vehicle end box according to claim 1, characterized in that: the sealing part is arranged in a hollow mode.

8. The double-protection sealing structure for the vehicle end box according to claim 1, characterized in that: the first transverse edge and the horizontal plane form an included angle of 0-60 degrees.

9. A vehicle end box comprises a box cover (1) and a box body (2); the method is characterized in that: a double protection sealing structure according to any one of claims 1-8 is installed between the box cover (1) and the box body (2).