CN221054393U - Gate valve with anti-loosening function - Google Patents

Abstract

The utility model discloses a gate valve with a locking function, which comprises a valve body, a valve cover, a valve rod and a turntable, wherein the valve body is provided with a valve body flange, the valve cover is provided with a valve cover flange, a plurality of studs are uniformly penetrated on the circumferences of the valve body flange and the valve cover flange, hexagonal nuts are screwed at two ends of each stud, one side of the valve body flange and one side of the valve cover flange, which are opposite to each stud, are respectively provided with positioning holes, fixing screws in the positioning holes in threaded fit are arranged, limiting rings are sleeved on the hexagonal nuts, rotating plates in running fit are arranged on the limiting rings, a strip-shaped groove is formed in the rotating plates, connecting columns with the same height as the limiting rings are fixed on the positioning holes, the connecting columns are hollow, and the fixing screw threads sequentially penetrate through the strip-shaped groove and the connecting columns to be screwed in the positioning holes so as to fix the rotating plates on the connecting columns. The utility model discloses a gate valve is equipped with the spacing ring through the cover on hexagon nut and fixes hexagon nut for hexagon nut can not be easy not hard up, has improved the stability of gate valve at work.

Description

Gate valve with anti-loosening function

Technical Field

The present utility model relates to a valve, and more particularly, to a gate valve having a locking function.

Background

The gate valve is opened and closed by a gate plate, the moving direction of the gate plate is vertical to the fluid direction, and the gate valve can only be fully opened and fully closed and cannot be regulated and throttled. The valve body and the valve cover of the existing gate valve are connected and fixed mainly through the stud penetrating through the valve body and the valve cover, then the hexagonal nuts are screwed on two sides of the stud to connect and fix the valve body and the valve cover, in order to prevent the hexagonal nuts from loosening, a spring washer is usually added, or a disc spring is added, but the structure can play a good anti-loosening effect when the vibration is small, under some special working conditions, the vibration of the valve is large, the hexagonal nuts are loose, the valve is influenced, and improvement is urgently needed.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model aims to provide a gate valve with a locking function.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a gate valve with locking function, includes valve body, valve gap, valve rod and carousel, be equipped with the valve body flange on the valve body, be equipped with on the valve gap with valve body flange matched with valve body flange and valve gap flange circumference evenly wear to be equipped with a plurality of double-screw bolts, twist at the both ends of double-screw bolt has hexagonal nut, valve body flange and valve gap flange are equipped with the locating hole respectively for one side of double-screw bolt, be equipped with screw-thread fit's set screw in the locating hole all the cover is equipped with the spacing ring on the hexagonal nut, the height of spacing ring is higher than the double-screw bolt, be equipped with in the spacing ring with hexagonal nut matched with through groove, be provided with running fit's rotor piece on the rotor piece and be provided with the bar groove that extends the setting along rotor piece length direction be fixed with on the locating hole with the spliced pole of equal height of spacing ring, the spliced pole is the cavity setting, the set up in proper order, the set screw passes bar groove and spliced pole are rotated in the locating hole and will the rotor piece is fixed on the spliced pole.

The utility model is further provided with: the fixed screw is also sleeved with a gasket, and the gasket is positioned between the rotating piece and the connecting column.

The utility model is further provided with: the limiting ring is provided with a convex column, one end of the rotating piece, which is close to the limiting ring, is provided with a through hole, and the end part of the convex column penetrates through the through hole and is provided with a limiting block with the diameter larger than that of the through hole.

Through adopting the technical scheme, the utility model discloses a gate valve is equipped with the spacing ring through the cover on the hex nut and fixes the hex nut for the hex nut can not be easy not hard up, has improved the stability of gate valve at work.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at a;

fig. 3 is a partial schematic view of the present utility model.

1. A valve body; 10. a valve body flange; 2. a valve cover; 20. a valve cover flange; 3. a valve stem; 30. a turntable; 4. a stud; 40. a hexagonal nut; 5. positioning holes; 6. a fixing screw; 7. a limiting ring; 70. hexagonal through grooves; 71. a convex column; 72. a limiting block; 8. a rotating piece; 80. a bar-shaped groove; 81. a through hole; 9. a connecting column; 90. a gasket.

Detailed Description

Embodiments of the present utility model will be further described with reference to fig. 1 to 3.

The utility model discloses a gate valve with a locking function, which comprises a valve body 1, a valve cover 2, a valve rod 3 and a rotary disc 30, wherein the valve body 1 is provided with a valve body flange 10, the valve cover 2 is provided with a valve cover flange 20 matched with the valve body flange 10, the circumferences of the valve body flange 10 and the valve cover flange 20 are uniformly penetrated with a plurality of studs 4, two ends of each stud 4 are screwed with hexagonal nuts 40, one sides of the valve body flange 10 and the valve cover flange 20, corresponding to the studs 4, of each stud 4 are respectively provided with a positioning hole 5, a fixing screw 6 matched with threads is arranged in each positioning hole 5, each hexagonal nut 40 is sleeved with a limiting ring 7, the height of each limiting ring 7 is higher than that of each stud 4, each limiting ring 7 is internally provided with a hexagonal through groove 70 matched with each hexagonal nut 40, each limiting ring 7 is provided with a rotating piece 8 matched with each rotating piece, each rotating piece 8 is provided with a strip groove 80 extending along the length direction of each rotating piece 8, connecting posts 9 with the same height as each limiting ring 7 are fixed on the positioning holes 5, and the connecting posts 9 are arranged in a hollow mode, and the connecting posts 9 are screwed into the connecting posts 9 in sequence.

Further, in order to enable the fixing screw 6 to stably fix the rotating plate 8 on the connecting post 9, a gasket 90 is further sleeved on the fixing screw 6, and the gasket 90 is located between the rotating plate 8 and the connecting post 9.

Further, the stop collar 7 is provided with a protruding column 71, one end of the rotating plate 8, which is close to the stop collar 7, is provided with a through hole 81, and the end of the protruding column 71 passes through the through hole 81 and is provided with a stop block 72 with a diameter larger than that of the through hole 81.

The use principle is as follows: during installation, as shown in fig. 3, the limiting ring 7 is sleeved on the hexagonal nut 40, then the rotating piece 8 arranged on the limiting ring 7 is rotated, so that the strip-shaped groove 80 of the rotating piece 8 is located right above the connecting column 9, the fixing screw 6 sequentially penetrates through the strip-shaped groove 80 and the connecting column 9 to be screwed on the positioning hole 5, and at the moment, the fixing screw 6 presses the rotating piece 8 on the connecting column 9 to be fixed.

Because the rotating plate 8 is fixed, and the limiting ring 7 rotationally connected with the rotating plate 8 is also fixed and cannot easily rotate left and right along the center point, the limiting ring 7 can limit the hexagonal nut 40 from rotating and loosening along the stud 4, and the fixing of the hexagonal nut 40 is realized.

In addition, in order to improve the stability of the rotating piece 8, one end of the rotating piece 8 may be folded onto the hexagonal nut 40 along the hexagonal nut 40, so that the rotating piece 8 is not easily loosened by external force, and the stability is improved.

The utility model discloses a gate valve is equipped with spacing ring 7 through the cover on hexagon nut 40 and fixes hexagon nut 40 for hexagon nut 40 can not be easy not hard up, has improved the stability of gate valve at work.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (3)

1. A gate valve with locking function, its characterized in that: including valve body, valve gap, valve rod and carousel, be equipped with the valve body flange on the valve gap, be equipped with on the valve gap with valve body flange matched with valve gap flange the even wearing of valve body flange and valve gap flange circumference is equipped with a plurality of double-screw bolts, revolves at the both ends of double-screw bolt and twists has hexagonal nut, valve body flange and valve gap flange are equipped with the locating hole respectively for one side of double-screw bolt, be equipped with screw-thread fit's set screw in the locating hole all overlap on the hexagonal nut and be equipped with the spacing ring, the height of spacing ring is higher than the double-screw bolt, be equipped with in the spacing ring with hexagonal logical groove of hexagonal nut matched with, be provided with normal running fit's rotor on the spacing ring, be provided with the bar groove that extends along the rotation length direction set up be fixed with on the locating hole with spacing ring equal high spliced pole, the spliced pole is the cavity setting, set gradually the bar groove and spliced pole revolve and twist in the locating hole will the rotor is fixed on the spliced pole.

2. The gate valve with anti-loose function according to claim 1, wherein: the fixed screw is also sleeved with a gasket, and the gasket is positioned between the rotating piece and the connecting column.

3. The gate valve with anti-loose function according to claim 1, wherein: the limiting ring is provided with a convex column, one end of the rotating piece, which is close to the limiting ring, is provided with a through hole, and the end part of the convex column penetrates through the through hole and is provided with a limiting block with the diameter larger than that of the through hole.