CN212228572U

CN212228572U - Explosion-proof junction box cover hydrostatic test fixture

Info

Publication number: CN212228572U
Application number: CN202021010523.1U
Authority: CN
Inventors: 项贤梅; 陆新兴
Original assignee: Kaicheng Lifting Machinery Co ltd
Current assignee: Kaicheng Lifting Machinery Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-12-25
Anticipated expiration: 2030-06-04

Abstract

The utility model discloses an explosion-proof junction box lid hydrostatic test anchor clamps, including casing, sealed lid and rubber pad, the casing below is connected with seals the board, and seals the board left end and be provided with the interface of intaking, the right-hand first O type sealing washer that is provided with of interface of intaking, seal the board right-hand member and seted up out the water interface, sealed lid is fixed in the casing top, and housing face is provided with the junction box lid, junction box lid top is provided with interior hexagonal spiral shell balance. This explosion-proof junction box lid hydrostatic test anchor clamps install first O type sealing washer, the outer mouthful size of the board of sealing is identical with the inner opening size of casing, is favorable to improving the leakproofness of sealing between board and the casing for the terminal box should not overflow when hydrostatic test, and the board of sealing constitutes airtight connection through first O type sealing washer and water outlet port, and when the hydrostatic test was done to the terminal box to the convenience, water outlet port can not the overflow, thereby makes the pressure value in the terminal box remain stable.

Description

Explosion-proof junction box cover hydrostatic test fixture

Technical Field

The utility model relates to a hydrostatic test anchor clamps technical field specifically is an explosion-proof junction box lid hydrostatic test anchor clamps.

Background

The explosion-proof motor is a motor which can be used in flammable and explosive places, electric sparks are not generated during operation, and the explosion-proof motor junction box hydrostatic test device is arranged outside the explosion-proof motor junction box and mainly plays a sealing role and is used for hydrostatic test of the explosion-proof motor junction box after installation, and the requirement of the explosion-proof motor junction box on the sealing performance is high.

The upper end, the lower end and the junction box of an explosion-proof motor junction box on the market are usually sealed by a rubber base plate, when the pressure is 1.0MPa, water leakage can be guaranteed, but when the pressure is increased to 2.0MPa, the rubber plate cannot play a role in sealing, water leakage begins, and aiming at the situation, an explosion-proof junction box cover hydraulic test clamp is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an explosion-proof junction box lid hydrostatic test anchor clamps to put forward rubber backing plate seal upper and lower both ends and terminal box commonly used in the explosion-proof motor terminal box on the market among the solution above-mentioned background art, when pressure is 1.0MPa, can guarantee not leaking, but when pressure increases to 2.0MPa, the rubber slab just can't play sealed effect, the problem that begins to leak.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an explosion-proof junction box lid hydrostatic test anchor clamps, includes casing, sealed lid and rubber pad, the casing below is connected with seals the board, and seals the board left end and be provided with the interface of intaking, the right-hand first O type sealing washer that is provided with of interface of intaking, seal the board right-hand member and seted up out the interface of intaking, sealed lid is fixed in the casing top, and shells surface is provided with the junction box lid, junction box lid top is provided with interior hexagonal spiral shell balance, and junction box lid external connection has the plug screw, the plug screw top is provided with third O type sealing washer, the rubber pad is connected in and is sealed the board top.

Preferably, the size of the outer opening of the sealing plate is matched with the size of the inner opening of the shell, and the sealing plate is in sealed connection with the water outlet port through the first O-shaped sealing ring.

Preferably, the connection mode between the water inlet interface and the first O-shaped sealing ring is glue joint, and the water inlet interface and the water outlet interface are symmetrically distributed about the vertical center line of the sealing plate.

Preferably, the sealing cover comprises a cover body, a groove, a second O-shaped sealing ring, a spiral shell hanging scale, a bolt and a spring ring, the groove is formed below the cover body, the second O-shaped sealing ring is arranged outside the groove, the spiral shell hanging scale is installed above the cover body, the bolt is installed on one side of the cover body, and the spring ring is arranged below the bolt.

Preferably, the groove is of a radian structure, and the outer surface of the second O-shaped sealing ring is tightly attached to the inner surface of the groove.

Preferably, the cover body is fixedly connected with the shell through a bolt, and the lower surface of the bolt is attached to the upper surface of the spring coil.

Preferably, the junction box cover is movably connected with the shell through the inner hexagonal screw scales, and the inner hexagonal screw scales are uniformly distributed on the surface of the junction box cover.

Preferably, both sides of the rubber pad are of inclined structures, and the surface of the rubber pad is in a sawtooth shape.

Compared with the prior art, the beneficial effects of the utility model are that: the novel explosion-proof junction box cover hydrostatic test fixture is provided with the first O-shaped sealing ring, the size of an outer opening of the sealing plate is matched with the size of an inner opening of the shell, the sealing performance between the sealing plate and the shell is improved, the junction box is not prone to overflowing during hydrostatic test, the sealing plate is hermetically connected with the water outlet port through the first O-shaped sealing ring, the water outlet port is not prone to overflowing when the junction box is subjected to hydrostatic test, and the pressure value in the junction box is kept stable;

the novel anti-explosion junction box cover hydrostatic test fixture is provided with a groove, the groove is formed below the shell, and the outer surface of the second O-shaped sealing ring is tightly attached to the inner surface of the groove, so that a gap between the sealing cover and the groove is sealed by the second O-shaped sealing ring after the sealing cover is sealed, the overall sealing performance of the junction box is further improved, the lower surface of the bolt is attached to the upper surface of the spring ring, and the bolt tightening degree is favorably improved;

this novel explosion-proof junction box lid hydrostatic test anchor clamps installs the rubber pad, and the both sides of rubber pad are the slope structure, conveniently make inside its easier pressfitting advances the casing, and the outer mouthful size of rubber pad is greater than the interior mouthful size of casing, and surperficial both sides are the cockscomb structure, and then make the rubber pad outside after the pressfitting fold, and the rubber of cockscomb structure is folded each other, has promoted the leakproofness after its pressfitting greatly, guarantees that the part can bear 2.0 MPa's water pressure.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is a schematic view of the local structure of the sealing cover of the present invention.

In the figure: 1. a housing; 2. a sealing plate; 3. a water inlet interface; 4. a first O-ring seal; 5. a water outlet interface; 6. a sealing cover; 601. a cover body; 602. a groove; 603. a second O-ring seal; 604. hoisting a snail scale; 605. a bolt; 606. a spring coil; 7. a junction box cover; 8. an inner hexagonal screw scale; 9. a plug screw; 10. a third O-shaped sealing ring; 11. and (7) a rubber pad.

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. 1-3, the present invention provides a technical solution: a hydraulic test fixture for an explosion-proof junction box cover comprises a shell 1, a sealing cover 6 and a rubber pad 11, wherein a sealing plate 2 is connected to the lower portion of the shell 1, a water inlet connector 3 is arranged at the left end of the sealing plate 2, the size of an outer opening of the sealing plate 2 is identical to that of an inner opening of the shell 1, the sealing plate 2 is in airtight connection with a water outlet connector 5 through a first O-shaped sealing ring 4, and the size of the outer opening of the sealing plate 2 is identical to that of the inner opening of the shell 1, so that the sealing performance between the sealing plate 2 and the shell 1 is improved, the junction box is not prone to overflow during a hydraulic test, the sealing plate 2 is in airtight connection with the water outlet connector 5 through the first O-shaped sealing ring 4, the junction box is convenient to carry out a static pressure test, the water outlet connector 5 is not prone to overflow;

a first O-shaped sealing ring 4 is arranged on the right of the water inlet interface 3, a water outlet interface 5 is arranged at the right end of the sealing plate 2, the connection mode between the water inlet interface 3 and the first O-shaped sealing ring 4 is glue joint, and the water inlet interface 3 and the water outlet interface 5 are symmetrically distributed about the vertical central line of the sealing plate 2, because the connection mode between the water inlet interface 3 and the first O-shaped sealing ring 4 is glue joint, the adhesion between the first O-shaped sealing ring 4 and the water inlet interface 3 is greatly enhanced, the sealing performance formed by the water inlet interface 3 and the first O-shaped sealing ring 4 is higher, the first O-shaped sealing ring 4 cannot fall from the water inlet interface 3, the water inlet interface 3 and the water outlet interface 5 are symmetrically distributed about the vertical central line of the sealing plate 2, and when a static pressure test is carried out on a junction box, a water source enters from the water inlet interface 3 and flows out from the;

the sealing cover 6 is fixed above the housing 1, the sealing cover 6 comprises a cover body 601, a groove 602, a second O-ring 603, a hanging spiral balance 604, a bolt 605 and a spring ring 606, the groove 602 is formed below the cover body 601, the second O-ring 603 is arranged outside the groove 602, the hanging spiral balance 604 is arranged above the cover body 601, the bolt 605 is arranged on one side of the cover body 601, the spring ring 606 is arranged below the bolt 605, the groove 602 is in a radian structure, the outer surface of the second O-ring 603 is tightly attached to the inner surface of the groove 602, the cover body 601 is fixedly connected with the housing 1 through the bolt 605, the lower surface of the bolt 605 is attached to the upper surface of the spring ring 606, the groove 602 is formed below the cover body 601, and the outer surface of the second O-ring 603 is tightly attached to the inner surface of the groove 602, so that the sealing cover 6 seals a gap between the two through the second O-ring 603 after sealing, the overall sealing performance of the junction box is further improved, because the cover body 601 is fixedly connected with the shell 1 through the bolts 605, and the lower surfaces of the bolts 605 are attached to the upper surfaces of the spring coils 606, the cover body 601 is convenient to mount and dismount through the bolts 605, and the spring coils 606 arranged below the bolts 605 are beneficial to improving the screwing degree of the bolts 605;

the surface of the shell 1 is provided with a junction box cover 7, an inner hexagonal screw scale 8 is arranged above the junction box cover 7, a screw plug 9 is connected to the outside of the junction box cover 7, a third O-shaped sealing ring 10 is arranged above the screw plug 9, the junction box cover 7 is movably connected with the shell 1 through the inner hexagonal screw scale 8, the inner hexagonal screw scales 8 are uniformly distributed on the surface of the junction box cover 7, the junction box cover 7 is movably connected with the shell 1 through the inner hexagonal screw scale 8, and the inner hexagonal screw scales 8 are uniformly distributed on the surface of the junction box cover 7, so that the tightness and the stability between the junction box cover 7 and the shell 1 are conveniently increased, and the third O-shaped sealing ring 10 is arranged above the screw plug 9, so that the tightness of the joint of the screw plug 9 and the junction box cover 7;

rubber pad 11 is connected in sealing 2 tops, the both sides of rubber pad 11 are the slope structure, and rubber pad 11 surface is the cockscomb structure, because sealing 2, sealed lid 6 and junction box lid 7 surface all are glued and are had rubber pad 11, and the both sides of rubber pad 11 are the slope structure, conveniently make it press fit into casing 1 inside more easily, and the outer mouthful size of rubber pad 11 is greater than casing 1's internal orifice size, and surperficial both sides are the cockscomb structure, and then make the 11 outsides of rubber pad after the pressfitting fold, the rubber of cockscomb structure is folded each other, the leakproofness after its pressfitting has been promoted greatly, guarantee that the part can withstand the water pressure of regulation.

The working principle is as follows: when the anti-explosion junction box cover hydraulic test fixture is used, firstly, the sealing cover 6 is fixed at an upper connector of the shell 1 through the bolt 605, the spring ring 606 arranged below the bolt 605 is favorable for improving the screwing degree of the bolt 605, the groove 602 arranged below the cover body 601 is internally provided with the second O-shaped sealing ring 603, the outer surface of the second O-shaped sealing ring 603 is tightly attached to the inner surface of the groove 602, so that the gap between the sealing cover 6 and the shell is sealed through the second O-shaped sealing ring 603 after the sealing cover 6 is sealed, the integral sealing performance of the junction box is further improved, after the sealing cover 6 is installed, the junction box cover 7 and the shell 1 are fixed through the inner hexagon screw 8, then the screw plug 9 is rotated into the outer part of the junction box cover 7, the third O-shaped sealing ring 10 is arranged above the screw plug 9, the sealing performance of the junction of the screw plug 9 and the junction box cover 7 is favorably improved, and, sealing plate 2, sealed lid 6 and junction box lid 7 surface all splices rubber pad 11, and the both sides of rubber pad 11 are the slope structure, conveniently make it more easy pressfitting enter casing 1 inside, and the outer mouthful size of rubber pad 11 is greater than the interior mouthful size of casing 1, and the surface both sides are the cockscomb structure, and then make the rubber pad 11 outside after the pressfitting fold, the cockscomb structure rubber is folded each other, the leakproofness after its pressfitting has been promoted greatly, guarantee that the part can bear the water pressure of regulation, and sealing plate 2 constitutes airtight connection through first O type sealing washer 4 and water outlet 5, when conveniently doing static pressure test to the junction box, water outlet 5 can not the overflow, make the pressure value in the junction box remain stable, connect the water source from water inlet 3 at last and detect, after the detection finishes, the water source can flow from water outlet 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an explosion-proof junction box lid hydrostatic test anchor clamps, includes casing (1), sealed lid (6) and rubber pad (11), its characterized in that: casing (1) below is connected with seals board (2), and seals board (2) left end and be provided with into water interface (3), interface (3) the right-hand first O type sealing washer (4) that is provided with of interface of intaking, seal board (2) right-hand member and seted up out water interface (5), sealed lid (6) are fixed in casing (1) top, and casing (1) surface is provided with junction box lid (7), junction box lid (7) top is provided with interior hexagonal spiral shell balance (8), and junction box lid (7) external connection has plug screw (9), plug screw (9) top is provided with third O type sealing washer (10), rubber pad (11) are connected in sealing board (2) top.

2. The anti-explosion junction box cover hydraulic test clamp as recited in claim 1, characterized in that: the size of an outer opening of the sealing plate (2) is matched with that of an inner opening of the shell (1), and the sealing plate (2) is in sealed connection with the water outlet port (5) through the first O-shaped sealing ring (4).

3. The anti-explosion junction box cover hydraulic test clamp as recited in claim 1, characterized in that: the connection mode between water inlet (3) and the first O-shaped sealing ring (4) is glued joint, and the water inlet (3) and the water outlet (5) are symmetrically distributed about the vertical center line of the sealing plate (2).

4. The anti-explosion junction box cover hydraulic test clamp as recited in claim 1, characterized in that: sealed lid (6) are including lid (601), recess (602), second O type sealing washer (603), hang spiral shell balance (604), bolt (605) and spring ring (606), and offer recess (602) below lid (601), recess (602) outside is provided with second O type sealing washer (603), lid (601) top is installed and is hung spiral shell balance (604), and lid (601) one side installs bolt (605), bolt (605) below is provided with spring ring (606).

5. The anti-explosion junction box cover hydraulic test clamp as recited in claim 4, wherein: the groove (602) is of a radian structure, and the outer surface of the second O-shaped sealing ring (603) is tightly attached to the inner surface of the groove (602).

6. The anti-explosion junction box cover hydraulic test clamp as recited in claim 4, wherein: the cover body (601) is fixedly connected with the shell (1) through a bolt (605), and the lower surface of the bolt (605) is attached to the upper surface of the spring coil (606).

7. The anti-explosion junction box cover hydraulic test clamp as recited in claim 1, characterized in that: the junction box cover (7) is movably connected with the shell (1) through the inner hexagonal screw scale (8), and the inner hexagonal screw scale (8) is uniformly distributed on the surface of the junction box cover (7).

8. The anti-explosion junction box cover hydraulic test clamp as recited in claim 1, characterized in that: the two sides of the rubber pad (11) are of inclined structures, and the surface of the rubber pad (11) is of a sawtooth shape.