CN216803094U

CN216803094U - Adjustable safety valve clamping and fixing device

Info

Publication number: CN216803094U
Application number: CN202122778864.4U
Authority: CN
Inventors: 王元波; 张卫东
Original assignee: Zhoushan Xinya Shipyard Co ltd
Current assignee: Zhoushan Xinya Shipyard Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-06-24
Anticipated expiration: 2031-11-11

Abstract

The adjustable safety valve clamping and fixing device comprises a fastening mechanism which is centrally and symmetrically distributed on a bottom plate, wherein the fastening mechanism comprises a pressure rod, the middle part of the pressure rod is arranged on the bottom plate through a positioning bolt, the pressure rod is hinged with the head part of the positioning bolt, the head part of the pressure rod is bent downwards to form a pressure head, and an adjusting bolt assembly is arranged at the tail part of the pressure rod in a threaded manner; the safety valve is placed in the center of the bottom plate, the pressure heads are uniformly distributed above the flange seat of the safety valve, then the tail portion of the pressure rod is lifted up by rotating the adjusting bolt assembly, and the pressure heads are pressed down to tightly press and fix the flange seat. The device is characterized in that a fastening mechanism mainly adopts a lever principle structure, the positions of the pressure rod in the horizontal direction and the vertical direction can be adjusted according to the size of the safety valve, the tail part of the pressure rod can be lifted by rotating an adjusting bolt assembly, and a pressure head compresses and positions a flange seat on the lower part of the safety valve after being pressed down by utilizing the lever principle.

Description

Adjustable safety valve clamping and fixing device

Technical Field

The utility model relates to an adjustable safety valve clamping and fixing device.

Background

The safety valve is a special equipment for overpressure protection of pressure system, is an automatic valve, belonging to important components of ship. When the system pressure reaches the setting pressure, the medium self-force is utilized to discharge a certain rated amount of fluid without any external force, so that the pressure in the system is prevented from exceeding a preset safety value. When the pressure returns to normal, the valve will close again to prevent the medium from flowing out. When the relief valve overhauls, at first need be to relief valve fastening position, current fixing device is whole comparatively complicated to the suitability is poor, can not be applicable to not unidimensional relief valve, influences work efficiency.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects existing in the problems, the utility model provides an adjustable safety valve clamping and fixing device.

In order to achieve the purpose, the utility model provides an adjustable safety valve clamping and fixing device which comprises a fastening mechanism, wherein the fastening mechanism is centrosymmetrically distributed on a bottom plate, the fastening mechanism comprises a pressure lever, the middle part of the pressure lever is arranged on the bottom plate through a positioning bolt, the pressure lever is hinged with the head part of the positioning bolt, the head part of the pressure lever is bent downwards to form a pressure head, and an adjusting bolt assembly is arranged on the tail part of the pressure lever in a threaded manner;

the safety valve is placed in the center of the bottom plate, the pressure heads are uniformly distributed above a flange seat of the safety valve, then the adjusting bolt assembly is rotated to lift the tail of the pressure rod, and the pressure heads are pressed downwards to tightly press and fix the flange seat.

As a further improvement of the utility model, the positioning bolt is in threaded connection with the bottom plate and is locked and positioned by a butterfly nut, a threaded hole is correspondingly processed on the bottom plate, a positioning groove is processed at the head of the positioning bolt, through holes are correspondingly processed on two opposite side walls of the positioning groove, positioning holes are correspondingly processed on the pressure rod, the positioning holes are a group along the axial direction of the pressure rod, the pressure rod is placed in the positioning groove, and a hinge bolt assembly sequentially penetrates through the through holes and the positioning holes and is locked to form a hinge structure.

As a further improvement of the utility model, the bottom of the pressure head is processed to form a toothed surface.

As a further improvement of the utility model, the adjusting bolt assembly comprises a screw rod section in threaded connection with the tail part of the pressure rod, the lower end of the screw rod section is fixedly connected with a universal ball, the universal ball is installed in the ball seat in a matching manner, and the upper end of the screw rod section is provided with a hexagonal head.

As a further improvement of the utility model, the outer diameter of the hexagonal head is smaller than the small diameter of the screw section.

As a further improvement of the utility model, the number of the fastening mechanisms is at least 3 groups.

The utility model has the beneficial effects that:

fastening device mainly adopts the structure of lever principle among the device to can adjust the depression bar simultaneously in the position of level and vertical direction according to the size of safety valve, as long as rotate adjusting bolt subassembly can lift the depression bar afterbody, the pressure head utilizes lever principle to push down the back and compresses tightly the location with the flange seat of safety valve lower part, device overall structure is simple, convenient to use.

Drawings

FIG. 1 is a front view of an adjustable safety valve clamping fixture of the present invention;

FIG. 2 is a front view of the fastening mechanism;

FIG. 3 is a top view of the fastening mechanism;

fig. 4 is a front view of the fastening bolt 2;

fig. 5 is a front view of the pressing lever 3;

fig. 6 is a front view of the positioning bolt 5;

fig. 7 is a plan view of the positioning bolt 5.

In the figure: 1. a base plate; 11. a threaded hole; 2. an adjusting bolt assembly; 21. a ball seat; 22. a universal ball; 23. a screw section; 24. a hexagonal head; 3. a pressure lever; 31. positioning holes; 32. a pressure head; 33. a toothed surface; 4. a wing nut; 5. positioning the bolt; 51. positioning a groove; 52. a through hole; 6. a hinge bolt assembly; 7. a safety valve; 71. and (4) a flange seat.

Detailed Description

As shown in fig. 1, the adjustable safety valve clamping and fixing device of the present invention comprises fastening mechanisms centrally symmetrically distributed on a base plate 1, the number of the fastening mechanisms is at least 3, the fastening mechanisms comprise pressure rods 3, the middle parts of the pressure rods 3 are mounted on the base plate 1 through positioning bolts 5, the pressure rods 3 are hinged with the heads of the positioning bolts 5, the positioning bolts 5 are in threaded connection with the base plate 1 and are locked and positioned through butterfly nuts 4 (see fig. 2 and 3), threaded holes are correspondingly processed on the base plate 1, positioning grooves 51 are processed at the heads of the positioning bolts 5, through holes 52 are correspondingly processed on two opposite side walls of the positioning grooves 51 (see fig. 6 and 7), positioning holes 31 are correspondingly processed on the pressure rods 3, the positioning holes 31 are a group along the axial direction of the pressure rods 3, the pressure rods 3 are placed in the positioning grooves 51, and the hinge bolt assemblies 6 sequentially pass through the through holes 52 and the positioning holes 31 and are locked to form a hinge structure, the head of the pressure rod 3 is bent downwards to form a pressure head 32, the bottom of the pressure head 32 is processed to form a toothed surface 33 (see fig. 5), the tail of the pressure rod 3 is provided with an adjusting bolt assembly 2 in a threaded manner, the adjusting bolt assembly 2 comprises a screw rod section 23 in threaded connection with the tail of the pressure rod 3, the lower end of the screw rod section 23 is fixedly connected with a universal ball 22, the universal ball 22 is installed in the ball seat 21 in a matching manner, the upper end of the screw rod section 23 is provided with a hexagonal head 24, and the outer diameter of the hexagonal head 24 is smaller than the small diameter of the screw rod section 23 (see fig. 4);

the safety valve 7 is placed at the center of the bottom plate 1, the pressure heads 32 are uniformly distributed above the flange seat 71 of the safety valve 7, then the adjusting bolt assembly 2 is rotated to lift the tail part of the pressure rod 3, and the pressure heads 32 press down to tightly press and fix the flange seat 71.

In particular use, the utility model will be described with reference to the accompanying drawings for the convenience of understanding;

when the safety valve works, the position of the pressure lever is adjusted according to the size of the safety valve, the pressure lever is taken out after the hinge bolt assembly is detached, then the positioning bolt is adjusted to a proper height and is locked and positioned through the butterfly nut, the pressure lever is placed in the positioning groove at the head of the positioning bolt, and the hinge bolt assembly is utilized to form a hinge structure after the corresponding positioning hole is selected; the safety valve is placed at the center of a plurality of pressure rods, the pressure heads are uniformly distributed above a flange seat of the safety valve, then the hexagonal head at the upper part of the adjusting bolt assembly is rotated, the tail part of each pressure rod correspondingly lifts a certain distance along with the rotation of the adjusting bolt assembly, and the pressure rods rotate a certain angle by taking the hinged part of the pressure rods and the positioning bolt as the center to drive the pressure heads to press and position the flange seat at the lower part of the safety valve; after the processing is finished, the tail part of the pressure rod can be moved downwards only by reversely rotating the adjusting bolt assembly, the pressure head correspondingly breaks away from the flange seat at the same time, and the safety valve is taken out.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The adjustable safety valve clamping and fixing device is characterized in that: the clamping device comprises fastening mechanisms which are centrosymmetrically distributed on a bottom plate (1), the fastening mechanisms comprise pressure rods (3), the middle parts of the pressure rods (3) are installed on the bottom plate (1) through positioning bolts (5), the pressure rods (3) are hinged with the heads of the positioning bolts (5), the heads of the pressure rods (3) are bent downwards to form pressure heads (32), and adjusting bolt assemblies (2) are installed at the tail parts of the pressure rods (3) in a threaded mode;

the safety valve (7) is placed in the center of the bottom plate (1), the pressure heads (32) are uniformly distributed above a flange seat (71) of the safety valve (7), then the adjusting bolt assembly (2) is rotated to lift the tail part of the pressure rod (3), and the pressure heads (32) are pressed downwards to compress and fix the flange seat (71).

2. The adjustable safety valve clamping fixture of claim 1, wherein: positioning bolt (5) with bottom plate (1) threaded connection and through butterfly nut (4) locking location, the corresponding screw hole that processes on bottom plate (1), positioning bolt (5) head processing constant head tank (51), correspond processing through-hole (52) on two relative lateral walls of constant head tank (51), processing has locating hole (31) on depression bar (3), locating hole (31) are for along depression bar (3) axial a set of, depression bar (3) place in constant head tank (51), articulated bolt subassembly (6) pass in proper order through-hole (52) and form hinge structure after locating hole (31) and the locking.

3. The adjustable safety valve clamping fixture of claim 1, wherein: and a toothed surface (33) is machined at the bottom of the pressure head (32).

4. The adjustable safety valve clamping fixture of claim 1, wherein: adjusting bolt subassembly (2) include with depression bar (3) afterbody threaded connection's screw rod section (23), screw rod section (23) lower extreme fixed connection universal ball (22), universal ball (22) match is installed in ball seat (21), screw rod section (23) upper end is equipped with hexagon head (24).

5. The adjustable safety valve clamping fixture of claim 4, wherein: the outer diameter of the hexagonal head (24) is smaller than the small diameter of the screw section (23).

6. The adjustable safety valve clamping fixture according to any one of claims 1-5, wherein: the number of the fastening mechanisms is at least 3 groups.