CN216869712U

CN216869712U - Water flow standard device relay box

Info

Publication number: CN216869712U
Application number: CN202123356619.0U
Authority: CN
Inventors: 陈奇; 张伍君; 张志�
Original assignee: Kaifeng Shengda Water Meter Co ltd
Current assignee: Kaifeng Shengda Water Meter Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-01
Anticipated expiration: 2031-12-29

Abstract

The utility model provides a water flow standard device relay box which comprises a box body and a box cover, wherein the box body is integrally formed, the top end face of the box body is a step end face, a first groove is formed in the top end face of the step end face, and a second groove is formed in the bottom end face of the step end face; a second sealing ring is arranged in the first groove, and a second sealing ring is arranged in the second groove; a plurality of mounting holes are formed in three side walls of the box body; an external fixed cable head is arranged in each mounting hole; a flange is arranged at the top end and the bottom end of the box cover, and the flange is matched with the end face of the step; the box body is a polypropylene plastic shell, the box cover is a polypropylene plastic cover, and a handle is arranged in the center of the end face of the top end of the box cover. The utility model has good sealing effect, and has the characteristics of convenient installation and maintenance, corrosion resistance, portability and portability.

Description

Water flow standard device relay box

Technical Field

The utility model belongs to the field of flow testing devices, and particularly relates to a relay box of a water flow standard device.

Background

The relay box of the water flow standard device is used for connecting signal lines in the water flow standard device, most of existing relay boxes are structurally sealed in order to guarantee the reliability and safety of connection, the influence of factors such as external air pressure and humidity on the interior of a joint box is mainly prevented, the tightness is determined by the structure and materials of products and sealing pieces, and some relay boxes adopt metal material shells and are directly sealed through some chemical glue. Although such a joint box is reliable in terms of sealing performance, it is cumbersome to attach and detach the joint box, and materials are wasted.

In summary, the conventional relay box for water flow rate calibration devices has to be further improved in terms of portability, installation ability, and corrosion resistance while ensuring its sealing property.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a relay box of a water flow standard device.

The technical scheme of the utility model is as follows: a relay box of a water flow standard device comprises a box body and a box cover, wherein the box body is integrally formed, the top end face of the box body is a step end face, a first groove is formed in the top end face of the step end face, and a second groove is formed in the bottom end face of the step end face; a first sealing ring is arranged in the first groove, and a second sealing ring is arranged in the second groove;

a plurality of mounting holes are formed in three side walls of the box body; an external cable fixing head is arranged in each mounting hole;

a flange is arranged at the top end and the bottom end of the box cover, and the flange is matched with the end face of the step;

the box body and the box cover are fastened and connected through a rotating bolt;

the box body is a polypropylene plastic shell, and the box cover is a polypropylene plastic cover.

Further, the thickness of the first sealing ring is not less than the depth of the first groove, and the first sealing ring is an expansion resin ring.

Furthermore, the thickness of the second sealing ring is not less than the depth of the second groove, and the second sealing ring is a silica gel ring.

Furthermore, a rotating handle is arranged at the top of the rotating bolt, a bolt is arranged at the bottom of the rotating bolt, and a sealing gasket is arranged at the middle position of the rotating bolt.

Furthermore, a handle is arranged in the center of the end face of the top end of the box cover.

Furthermore, four corners of the bottom end of the box body are provided with fixing holes.

The utility model has the beneficial effects that:

1. in the design scheme of the utility model, the butt joint of the top end of the box body and the box cover is designed in a step end face shape, the area of the butt joint is increased, the sealing performance of the butt joint is enhanced, and the effect of two layers of sealing rings is matched, so that the effect of complete sealing between the box body and the box cover can be achieved.

2. In the design scheme of the utility model, the box body and the box cover are fixed by adopting the rotating bolt and the handle at the top end of the box cover, so that the box body has the characteristics of convenience in installation and disassembly and portability.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the case of the present invention;

FIG. 3 is a perspective view of the lid of the present invention;

FIG. 4 is an enlarged partial sectional view of portion A of FIG. 2;

FIG. 5 is a schematic cross-sectional view of the case body, the first seal ring and the second seal ring in part A;

fig. 6 is a schematic structural view of a turning bolt in the present invention.

Reference numerals: 1. a box body; 2. a box cover; 3. rotating the bolt; 4. a step end face; 5. mounting holes; 6. An external cable fixing head; 7. a fixing hole; 201. a handle; 202. a flange; 301. rotating the handle; 302. A sealing gasket; 401. a first groove; 402. a second groove; 403. a first seal ring; 404. and a second seal ring.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in fig. 1-6, a water flow rate standard device relay box comprises a box body 1 and a box cover 2, wherein the box body 1 is integrally formed, the top end face of the box body is a step end face 4, the top end face of the step end face 4 is provided with a first groove 401, and the bottom end face of the step end face 4 is provided with a second groove 402; a first sealing ring 403 is arranged in the first groove 401, and a second sealing ring 404 is arranged in the second groove 402;

a plurality of mounting holes 5 are formed in three side walls of the box body 1; an external cable fixing head 6 is arranged in each mounting hole 5;

the top end and the bottom end of the box cover 2 are provided with flanges 202, and the flanges 202 are matched with the step end faces 4;

the box body 1 and the box cover 2 are fastened and connected through a rotating bolt 3;

the box body 1 is a polypropylene plastic shell, and the box cover 2 is a polypropylene plastic cover.

As some embodiments of the first sealing ring 403, the thickness of the first sealing ring 403 is 1-1.5mm greater than the depth of the first groove 401, and the first sealing ring 403 is an expanded resin ring.

As some examples of the second sealing ring 404, the thickness of the second sealing ring 404 is greater than the depth of the second groove 402 by 1mm, and the second sealing ring 404 is a silicone ring.

Preferably, the rotating bolt 3 is provided with a rotating handle 301 at the top, a bolt at the bottom and a sealing washer 302 at the middle position.

Preferably, a handle 201 is provided at the center of the top end surface of the box cover 2.

Preferably, four corners of the bottom end of the box body 1 are provided with fixing holes 7.

When the installation uses, at first install the fixed cable connector lug 6 of external formula of compelling in mounting hole 5 of 1 three lateral walls of box body, according to actual need in 1 inside wiring operation of box body accomplish the back, later with lid 2 with the 4 joint of step terminal surface on 1 top of box body be connected, rethread rotation bolt 3 pass lid 2 fastening in the screwed hole that 1 top four corners of box body seted up to this, accomplish the integral erection of relaying box.

The butt joint of the top end of the box body 1 and the box cover 2 is designed in a step end face 4 shape, the area of the butt joint is increased, the sealing performance of the butt joint is enhanced, and the effect of two layers of sealing rings is matched, so that the effect of complete sealing between the box body 1 and the box cover 2 can be achieved. The box body 1 and the box cover 2 are fastened and connected by adopting a rotating bolt 3, and an operator can manually and directly tighten and fix the box body and the box cover, so that the installation and the disassembly are convenient; the relay box is integrally a polypropylene shell, and is matched with the handle 201 at the top end of the box cover 2, so that the relay box has the characteristics of corrosion resistance, light weight and portability.

Thus, various embodiments of the present invention have been described in detail. Some details well known in the art have not been described in order to avoid obscuring the concepts of the present invention. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

Claims

1. The utility model provides a water flow standard device relaying box, includes box body (1), lid (2), its characterized in that:

the box body (1) is integrally formed, the top end face of the box body is a step end face (4), a first groove (401) is formed in the top end face of the step end face (4), and a second groove (402) is formed in the bottom end face of the step end face (4); a first sealing ring (403) is arranged in the first groove (401), and a second sealing ring (404) is arranged in the second groove (402);

a plurality of mounting holes (5) are formed in the side walls of three sides of the box body (1); an external cable fixing head (6) is arranged in each mounting hole (5);

a flange (202) is arranged at the top end and the bottom end of the box cover (2), and the flange (202) is matched with the step end face (4);

the box body (1) and the box cover (2) are fixedly connected through a rotating bolt (3);

the box body (1) is a polypropylene plastic shell, and the box cover (2) is a polypropylene plastic cover.

2. The water flow rate standard device junction box of claim 1, wherein: the thickness of the first sealing ring (403) is not less than the depth of the first groove (401), and the first sealing ring (403) is an expansion resin ring.

3. The water flow rate standard device junction box of claim 1, wherein: the thickness of the second sealing ring (404) is not less than the depth of the second groove (402), and the second sealing ring (404) is a silica gel ring.

4. The water flow rate standard device junction box of claim 1, wherein: the top of the rotary bolt (3) is provided with a rotary handle (301), the bottom of the rotary bolt is a bolt, and a sealing gasket (302) is arranged at the middle position of the rotary bolt.

5. The water flow rate standard device junction box of claim 1, wherein: the central position of the end surface of the top end of the box cover (2) is provided with a handle (201).

6. The water flow rate standard device junction box of claim 1, wherein: four corners of the bottom end of the box body (1) are provided with fixing holes (7).