CN221610724U - Guide overflow valve with main valve core diversion hole for preventing blockage - Google Patents

Abstract

The utility model relates to the technical field of overflow valves, and aims to solve the problems that in the prior art, the mounting mode of bolts can increase the complexity of disassembly and assembly, so that the disassembly and assembly process is complicated and the operation by a user is inconvenient. According to the utility model, the turntable is driven to rotate by the driving mechanism, so that the two T-shaped sliding blocks drive the two fixing rings to move close to each other, the fixing rings firmly fix the rivet on the mounting seat by clamping the bevel angles arranged on the two fixing rings and the chamfer angles on the rivet, and when the overflow valve body is dismounted by the device, a plurality of bolts are not required to be loosened, so that the dismounting process is simple and convenient, and the operation of an installer is facilitated.

Description

Guide overflow valve with main valve core diversion hole for preventing blockage

Technical Field

The utility model relates to the technical field of overflow valves, in particular to a pilot overflow valve with a main valve core diversion hole for preventing blockage.

Background

The pilot overflow valve with main valve core flow guiding hole for preventing blocking is one kind of device for controlling fluid flow and pressure in hydraulic system. It is composed of main valve core and pilot valve. In this design, a pilot orifice is provided on the main spool for controlling the number and rate of fluid flow through the main flow passage. However, these flow directing holes are easily blocked due to the possible presence of particulates or other impurities in the working environment, resulting in a valve that does not function properly. To address this problem, pilot relief valves have incorporated pilot valves. The pilot valve is connected with the main valve core through a smaller flow passage, and when the pilot hole of the main valve core is blocked, fluid can bypass the main valve core through the flow passage of the pilot valve and directly enter the overflow port. Therefore, the protection of the blockage of the diversion hole of the main valve core is realized, and the normal operation of the valve is ensured. In addition, the pilot relief valve also has a relief function. When the input flow exceeds the system requirement, the excess fluid is discharged through the overflow port, so that the stable working state of the system is maintained.

The prior pilot overflow valve (publication number: CN 214368003U) has at least the following disadvantages:

Above-mentioned patent is when using, fixes the overflow valve body on the base through the bolt hole of bottom, because the overflow valve needs periodic maintenance to it when using, when the user maintains or changes the overflow valve, the mounting means of bolt can increase the complexity of dismantling and equipment, leads to the process of dismouting loaded down with trivial details, inconvenient user operation.

Disclosure of utility model

The utility model aims to solve the problems that in the prior art, the mounting mode of bolts can increase the complexity of disassembly and assembly, the disassembly and assembly process is complicated, and the operation of a user is inconvenient, and provides a pilot overflow valve for preventing the pilot hole of a main valve core from being blocked.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides a main valve core water conservancy diversion hole anti-blocking's guide overflow valve, including mount pad and overflow valve body, the lower surface equidistance fixed mounting of overflow valve body has many blind nails, the bottom of many blind nails all is equipped with the chamfer, be equipped with the fixed subassembly of locking blind nail on the mount pad, fixed subassembly includes two T type spouts of symmetry division in mount pad upper surface, a plurality of mounting grooves have been seted up to the upper surface equidistance of mount pad, T type spout is close to the equal symmetry slidable mounting of inner wall of mounting groove respectively and has two T type sliders, two T type sliders are close to the equal fixed mounting of one end of mounting groove have solid fixed ring, gu fixed ring's inner wall is equipped with the oblique angle that matches with the chamfer, the diapire rotation of mounting groove has the carousel, two guide grooves have been run through to gu fixed ring's lower surface symmetry, gu fixed surface fixed mounting has the guide pillar, guide pillar and the inner wall slidable mounting of guide groove, the lower surface of mount pad is equipped with the actuating mechanism who drives carousel pivoted, actuating mechanism is including rotating the second gear of installing in the mount pad lower surface, the lower surface fixed mounting who runs through the diapire of mounting groove and fixed mounting has first gear, first gear and fixed mounting has a worm wheel, first gear and worm wheel looks face-wheel looks gear looks, the worm wheel looks easy dismounting and worm has two screw looks fixed mounting screw, the worm, the outer surface mounting of the screw is easy to be installed with the screw, the screw is easy to be installed with the surface mounting, the screw down the surface mounting, the screw is easy to rotate, the surface mounting.

As a further scheme of the utility model, the lower surface of the overflow valve body is provided with the first positioning hole, the lower surface of the overflow valve body is provided with the second positioning hole, the upper surface of the mounting seat is fixedly provided with the first lug, the upper surface of the mounting seat is fixedly provided with the second lug, the diameter of the first lug is matched with that of the first positioning hole, the diameter of the second lug is matched with that of the second positioning hole, when the overflow valve body is mounted, an installer manually aligns the first lug with the first positioning hole, then aligns the second lug with the second positioning hole, and the installer manually downwards presses the overflow valve body to be positioned on the upper surface of the mounting seat, so that the overflow valve body is convenient to mount and fix.

The diameter of the first locating hole is smaller than that of the second locating hole, and the direction error during installation of the overflow valve body is avoided through the arrangement of different diameters.

Compared with the prior art, the utility model has the following beneficial effects:

the rotary table is driven to rotate through the driving mechanism, the rotary table drives the guide groove to rotate, the guide groove drives the two T-shaped sliding blocks to move close to each other through the guide pillar, the two T-shaped sliding blocks drive the two fixing rings to move close to each other, the bevel angles arranged on the two fixing rings are clamped with the chamfer angles on the rivet, the fixing rings firmly fix the rivet on the mounting seat, the rotary table can be disassembled only by reversely rotating the knob when the overflow valve body is disassembled, a plurality of bolts are not needed to be loosened and loosened through the rotary table, the disassembly and assembly process is simple and convenient, and the operation of an installer is convenient.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a pilot relief valve with a main valve core pilot hole for preventing blocking;

FIG. 2 is a schematic bottom view of a pilot relief valve with a pilot hole for preventing blockage of a main valve core;

FIG. 3 is a schematic diagram of a mounting seat of a pilot relief valve with a main valve core pilot hole for preventing blocking;

FIG. 4 is a schematic diagram of an overflow valve body of a pilot overflow valve with a main valve core diversion hole for preventing blockage;

FIG. 5 is a schematic view of a fixed ring of a pilot relief valve with a pilot hole for preventing blockage of a main valve core.

In the figure: 1. a mounting base; 2. an overflow valve body; 3. a T-shaped chute; 4. a T-shaped slider; 5. a fixing ring; 6. a first bump; 7. a second bump; 8. a mounting groove; 9. a turntable; 10. a guide groove; 11. a guide post; 12. a first gear; 13. a second gear; 14. a worm wheel; 15. a worm; 16. a support; 17. a knob; 18. pulling nails; 19. chamfering; 20. a first positioning hole; 21. a second positioning hole; 22. bevel angle.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-5, a pilot overflow valve for preventing a main valve core diversion hole from being blocked comprises a mounting seat 1 and an overflow valve body 2, wherein a plurality of blind nails 18 are fixedly arranged on the lower surface of the overflow valve body 2 at equal intervals, chamfers 19 are respectively arranged at the bottom ends of the blind nails 18, a fixing component for locking the blind nails 18 is arranged on the mounting seat 1, the fixing component comprises two T-shaped sliding grooves 3 symmetrically arranged on the upper surface of the mounting seat 1, a plurality of mounting grooves 8,T are symmetrically arranged on the upper surface of the mounting seat 1 at equal intervals, two T-shaped sliding blocks 4 are symmetrically and slidingly arranged on the inner walls of the plurality of mounting grooves 8,T respectively, a fixing ring 5 is fixedly arranged on one ends of the two T-shaped sliding blocks 4 close to the mounting grooves 8, oblique angles 22 matched with the chamfers 19 are arranged on the inner walls of the fixing ring 5, a rotary table 9 is rotatably arranged on the bottom wall of the mounting groove 8, two guide grooves 10 are symmetrically arranged on the upper surface of the rotary table 9 in a penetrating way, the lower surface fixed mounting of solid fixed ring 5 has guide pillar 11, guide pillar 11 and the inner wall slidable mounting of guide slot 10, the lower surface of mount pad 1 is equipped with the actuating mechanism who drives carousel 9 pivoted, actuating mechanism is including rotating the second gear 13 of installing in mount pad 1 lower surface, carousel 9 rotation center's lower surface fixed mounting has the pivot, the pivot runs through the diapire of mounting groove 8 and fixed mounting has first gear 12, first gear 12 meshes with second gear 13, second gear 13 rotation center's lower surface fixed mounting has worm wheel 14, two supports 16 are installed to the lower surface symmetry fixed mounting of mount pad 1, rotate between two supports 16 and install worm 15, worm 15 meshes with worm wheel 14, one end of worm 15 runs through the surface of support 16 and fixed mounting has knob 17.

The installer manually rotates knob 17, make knob 17 drive worm 15 rotate, drive worm wheel 14 through worm 15 and rotate, make worm wheel 14 drive second gear 13 rotate, drive first gear 12 through the rotation of second gear 13 and rotate, make first gear 12 drive carousel 9 through the pivot and rotate, carousel 9 drive guide slot 10 and rotate, make guide slot 10 drive two T type sliders 4 through guide pillar 11 and be close to each other the motion, drive two solid fixed rings 5 through two T type sliders 4 and be close to each other the motion, the chamfer 19 on through the oblique angle 22 that sets up on two solid fixed rings 5 and blind rivet 18 press from both sides tightly each other, make solid fixed ring 5 firmly fix blind rivet 18 on mount pad 1, avoid carousel 9 to become flexible through the auto-lock of worm wheel 14 and worm 15, only need reverse rotation knob 17 just can demolish when demolish overflow valve body 2, when dismantling overflow valve body 2 through this device, do not need elasticity a plurality of bolts, the dismouting process is simple and convenient for the installer to operate.

In this embodiment, the lower surface of the overflow valve body 2 is provided with a first positioning hole 20, the lower surface of the overflow valve body 2 is provided with a second positioning hole 21, the upper surface of the mounting seat 1 is fixedly provided with a first bump 6, the upper surface of the mounting seat 1 is fixedly provided with a second bump 7, the diameter of the first bump 6 is matched with the diameter of the first positioning hole 20, and the diameter of the second bump 7 is matched with the diameter of the second positioning hole 21.

When installing overflow valve body 2, the installer is manual aligns first lug 6 with first locating hole 20, aligns second lug 7 with second locating hole 21 again, and the installer is manual to push down overflow valve body 2, makes its location at the upper surface of mount pad 1, is convenient for the location before the installation through this device, and convenient follow-up installation is fixed.

In this embodiment, the diameter of the first positioning hole 20 is smaller than that of the second positioning hole 21, and the arrangement of different diameters prevents the overflow valve body 2 from being misdirected when being installed.

When the overflow valve body 2 is installed, an installer manually rotates the knob 17, the knob 17 drives the worm 15 to rotate, the worm 15 drives the worm wheel 14 to rotate, the worm wheel 14 drives the second gear 13 to rotate, the rotation of the second gear 13 drives the first gear 12 to rotate, the first gear 12 drives the rotary disc 9 to rotate through the rotating shaft, the rotary disc 9 drives the guide groove 10 to rotate, the guide groove 10 drives the two T-shaped sliding blocks 4 to move close to each other through the guide post 11, the two T-shaped sliding blocks 4 drive the two fixing rings 5 to move close to each other, the bevel angle 22 arranged on the two fixing rings 5 and the chamfer 19 on the blind rivet 18 are clamped with each other, the blind rivet 18 is firmly fixed on the installation seat 1 through the fixing rings 5, the worm wheel 14 and the self-locking rotary disc 9 of the worm 15 are prevented from loosening, the blind rivet 18 is only required to be reversely rotated to be dismantled when the overflow valve body 2 is dismantled, a plurality of bolts are not required to be loosened through the device, the disassembly process is simple and convenient for the installer to operate.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a main valve core water conservancy diversion hole anti-blocking's guide overflow valve, includes mount pad (1) and overflow valve body (2), its characterized in that, the lower surface equidistance fixed mounting of overflow valve body (2) has many blind nails (18), many the bottom of blind nails (18) all is equipped with chamfer (19), be equipped with the fixed subassembly of locking blind nail (18) on mount pad (1), fixed subassembly is including two T type spouts (3) of symmetrically opening in mount pad (1) upper surface, a plurality of mounting grooves (8) have been seted up to the upper surface equidistance of mount pad (1), the inner wall that T type spout (3) are close to mounting groove (8) respectively equal symmetry slidable mounting has two T type sliders (4), and two one end that T type slider (4) are close to mounting groove (8) is all fixed mounting solid fixed ring (5), the inner wall of solid fixed ring (5) is equipped with bevel (22) with chamfer (19) matching, the diapire rotation of mounting groove (8) has carousel (9), the upper surface of carousel (9) has two guide pillar (10) to be installed with guide pillar (10) under the guide pillar surface mounting groove (10), the lower surface of the mounting seat (1) is provided with a driving mechanism for driving the turntable (9) to rotate.

2. The pilot overflow valve for preventing the main valve guide hole from being blocked according to claim 1, wherein the driving mechanism comprises a second gear (13) rotatably mounted on the lower surface of the mounting seat (1), a rotating shaft is fixedly mounted on the lower surface of the rotating center of the rotating disc (9), the rotating shaft penetrates through the bottom wall of the mounting groove (8) and is fixedly provided with a first gear (12), and the first gear (12) is meshed with the second gear (13).

3. The pilot overflow valve with the anti-blocking main valve guide hole according to claim 2, wherein a worm wheel (14) is fixedly installed on the lower surface of the rotation center of the second gear (13), two supports (16) are symmetrically and fixedly installed on the lower surface of the installation seat (1), a worm (15) is rotatably installed between the two supports (16), the worm (15) is meshed with the worm wheel (14), and one end of the worm (15) penetrates through the outer surface of the support (16) and is fixedly provided with a knob (17).

4. The pilot relief valve with the anti-blocking main valve core diversion hole according to claim 1, wherein a first positioning hole (20) is formed in the lower surface of the relief valve body (2), and a second positioning hole (21) is formed in the lower surface of the relief valve body (2).

5. The pilot overflow valve for preventing the main valve guide hole from being blocked according to claim 1, wherein a first protruding block (6) is fixedly arranged on the upper surface of the installation seat (1), a second protruding block (7) is fixedly arranged on the upper surface of the installation seat (1), the diameter of the first protruding block (6) is matched with the diameter of the first positioning hole (20), and the diameter of the second protruding block (7) is matched with the diameter of the second positioning hole (21).

6. The pilot relief valve of claim 4, wherein the first pilot hole (20) has a smaller diameter than the second pilot hole (21).