CN216519917U

CN216519917U - Two-way cartridge valve leakproofness monitoring mechanism

Info

Publication number: CN216519917U
Application number: CN202121383171.9U
Authority: CN
Inventors: 顾涛; 谢成明
Original assignee: Zoucheng Jinming Hydraulic Machinery Co ltd
Current assignee: Zoucheng Jinming Hydraulic Machinery Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2022-05-13
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a two-way cartridge valve sealing performance monitoring mechanism which comprises an integrated valve block, wherein the top end of the integrated valve block is fixedly connected with a control cover plate, the middle part of the left upper end of the control cover plate is fixedly connected with a bulb, a socket inside the integrated valve block is connected with a valve sleeve in a sliding mode, the upper side and the lower side of the outside of the valve sleeve are fixedly connected with sealing rings, and the bottom end inside the valve sleeve is fixedly connected with a valve seat. According to the utility model, firstly, when the two-way cartridge valve is normally closed, the bottom ends of the first valve core and the second valve core are tightly combined with the valve seat, at the moment, under the action of the extrusion block, the first motor slides downwards and connects the battery into the circuit, the light emitting of the bulb proves that the sealing performance is good, if the first valve core and the second valve core are not tightly combined with the valve seat under the action of the first spring, the circuit is in a poor contact state or an open circuit state, the abnormal light emitting of the bulb proves that the sealing performance is poor, the effect of monitoring the internal sealing performance in real time is achieved, and the two-way cartridge valve is worthy of great popularization.

Description

Two-way cartridge valve leakproofness monitoring mechanism

Technical Field

The utility model relates to the technical field of sealing performance monitoring mechanisms, in particular to a sealing performance monitoring mechanism of a two-way cartridge valve.

Background

The two-way cartridge valve is a novel hydraulic control element appearing in the beginning of the foreign 20 th century 70 years, relevant standards are determined by the hydropneumatic standardization committee in 1981, the two-way cartridge valve is named after the international standard, and is called as a cartridge valve for short, one two-way cartridge valve is generally composed of an insertion element, a pilot element, a control cover plate and a cartridge block body, the insertion element is a main-stage or power element of the two-way cartridge valve and is inserted into a valve body or an integrated block, and the opening and closing actions and the opening amount of the two-way cartridge valve are used for controlling the on-off of liquid flow or the pressure and the flow rate so as to realize the control on the direction, the pressure and the speed of a hydraulic actuator, and the two-way cartridge valve has the following characteristics of large flow capacity and small pressure loss and is suitable for a large-flow hydraulic system; the main valve core has short stroke, sensitive action, quick response and small impact; the oil stain resistance is strong, and no strict requirement is imposed on the oil liquid filtering precision; the structure is simple, the maintenance is convenient, the failure is less, and the service life is long; the plug-in has the multifunctional characteristic of one valve, is convenient to form various hydraulic loops, and works stably and reliably; the plug-in has parts with high universalization, standardization and serialization degrees, and can form an integrated system.

Because inside the cartridge of two-way cartridge valve need insert the integrated valve piece to make two-way cartridge valve's leakproofness monitoring become difficult, if not discover in time, will produce little influence to follow-up work, in addition, filth or machining precision scheduling problem in the oil all can lead to the case card on the valve sleeve, influence normal work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a two-way cartridge valve sealing performance monitoring mechanism.

In order to achieve the purpose, the utility model adopts the following technical scheme: a two-way cartridge valve tightness monitoring mechanism comprises an integrated valve block, a control cover plate is fixedly connected with the top end of the integrated valve block, the middle part of the upper left end of the control cover plate is fixedly connected with a bulb, a socket inside the integrated valve block is connected with a valve sleeve in a sliding way, the upper side and the lower side of the exterior of the valve sleeve are both fixedly connected with a sealing ring, the bottom end of the interior of the valve sleeve is fixedly connected with a valve seat, the left side in the valve sleeve is connected with a first valve core in a sliding way, the right side in the valve sleeve is connected with a second valve core in a sliding way, the left upper end of the valve seat is fixedly connected with a sealing film, the middle part of the bottom end of the sealing film is fixedly connected with the top end of the first electrode, the left upper end inside the valve seat is connected with the upper side of the first electrode in a sliding way, the lower side of the first electrode is connected with an insulating shell in a sliding way, the battery is arranged in the insulating shell, and the bottom end in the insulating shell is fixedly connected with the second electrode.

As a further description of the above technical solution:

the first electrode is electrically connected with a bulb, and the second electrode is electrically connected with the bulb.

As a further description of the above technical solution:

the sealing ring is made of ethylene propylene diene monomer rubber, and the sealing film is made of ethylene propylene diene monomer rubber.

As a further description of the above technical solution:

the top end of the control cover plate is fixedly connected with a pilot valve.

As a further description of the above technical solution:

a first spring is arranged in the valve sleeve, and a second spring is arranged in the middle of the first electrode.

As a further description of the above technical solution:

the right end groove of the first valve core is in threaded connection with the left side of the inner hexagon bolt, and the right side of the inner hexagon bolt is in threaded connection with the left end groove of the second valve core.

As a further description of the above technical solution:

and the left lower end of the first valve core is fixedly connected with an extrusion block.

The utility model has the following beneficial effects:

1. according to the utility model, firstly, when the two-way cartridge valve is normally closed, the bottom ends of the first valve core and the second valve core are tightly combined with the valve seat, at the moment, under the action of the extrusion block, the first electrode slides downwards and connects the battery into the circuit, the light emitting of the bulb proves that the sealing performance is good, if the first valve core and the second valve core are not tightly combined with the valve seat under the action of the first spring, the circuit is in a poor contact state or an open circuit state, the abnormal light emitting of the bulb proves that the sealing performance is poor, and the effect of monitoring the internal sealing performance in real time is achieved.

2. According to the valve sleeve, under the action of the supporting force of the inner wall of the valve sleeve, the first valve core and the second valve core can be tightly attached through the action of the inner hexagon bolt, the function of the conventional integral valve core is achieved, the inner hexagon bolt is unscrewed, the first valve core and the second valve core can be respectively taken out, the problem that the valve sleeve is clamped by the conventional integral valve core and is difficult to take out is solved, and the valve sleeve is worthy of being popularized widely.

Drawings

FIG. 1 is a front sectional view of a sealing performance monitoring mechanism of a two-way cartridge valve according to the present invention;

fig. 2 is an enlarged view of a point a in fig. 1.

Illustration of the drawings:

1. an integration valve block; 2. a control cover plate; 3. a pilot valve; 4. a bulb; 5. a valve housing; 6. a seal ring; 7. a valve seat; 8. a first spring; 9. a first valve spool; 10. a hexagon socket head cap screw; 11. a second valve core; 12. extruding the block; 13. a sealing film; 14. a first electrode; 15. a second spring; 16. a battery; 17. an insulating case; 18. a second electrode.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, one embodiment of the present invention is provided: a sealing performance monitoring mechanism of a two-way cartridge valve comprises an integrated valve block 1, wherein a control cover plate 2 is fixedly connected to the top end of the integrated valve block 1, a bulb 4 is fixedly connected to the middle portion of the upper left end of the control cover plate 2, a valve sleeve 5 is slidably connected to an inner socket of the integrated valve block 1, sealing rings 6 are fixedly connected to the upper side and the lower side of the outer portion of the valve sleeve 5, a valve seat 7 is fixedly connected to the bottom end of the inner portion of the valve sleeve 5, a first valve core 9 is slidably connected to the left side of the inner portion of the valve sleeve 5, a second valve core 11 is slidably connected to the right side of the inner portion of the valve sleeve 5, when the two-way cartridge valve is normally closed, conical surfaces at the bottom ends of the first valve core 9 and the second valve core 11 are tightly combined with a conical surface at the top end of the valve seat 7, good sealing performance is formed under the assistance of an inner hexagonal bolt 10, a sealing film 13 is fixedly connected to the upper left end of the valve seat 7, the sealing film 13 can prevent oil from entering a circuit, and the middle portion of the bottom end of the sealing film 13 is fixedly connected to the top end of the first electrode 14, the upper left end sliding connection in the inside of valve seat 7 is on first electrode 14 upside, and first electrode 14 downside sliding connection has insulating casing 17, and insulating casing 17 is inside to be provided with battery 16, and the inside bottom fixedly connected with second electrode 18 of insulating casing 17.

The first electrode 14 is electrically connected with the bulb 4, the second electrode 18 is electrically connected with the bulb 4, the sealing ring 6 is made of ethylene propylene diene monomer, the sealing film 13 is made of ethylene propylene diene monomer which is corrosion-resistant and is suitable for sealing, the top end of the control cover plate 2 is fixedly connected with the pilot valve 3, the valve sleeve 5 is internally provided with a first spring 8, the middle part of the first electrode 14 is provided with a second spring 15, the second spring 15 can help the first electrode 14 to reset, the right end groove of the first valve core 9 is in threaded connection with the left side of the inner hexagon bolt 10, the right side of the inner hexagon bolt 10 is in threaded connection with the left end groove of the second valve core 11, under the supporting force of the inner wall of the valve sleeve 5, the first valve core 9 and the second valve core 11 are under the action of the hexagon socket head cap screw 10, the valve core can be tightly attached to play a role of the conventional integral valve core, and the left lower end of the first valve core 9 is fixedly connected with an extrusion block 12.

The working principle is as follows: when the two-way cartridge valve is normally closed, the conical surfaces at the bottom ends of the first valve core 9 and the second valve core 11 are tightly combined with the conical surface at the top end of the valve seat 7, and meanwhile, under the assistance of the hexagon socket head cap screw 10, good sealing performance is formed, at the moment, under the action of the extrusion block 12, the first electrode 14 slides downwards and connects the battery 16 into a circuit to form a complete circuit of the first electrode 14, the battery 16, the second electrode 18 and the bulb 4, the sealing performance is good at the moment when the bulb 4 normally emits light, if the first valve core 9 and the second valve core 11 are not tightly combined with the valve seat 7 under the action of the first spring 8, the circuit is in a poor contact state or an open circuit state, and when the bulb 4 does not normally emit light, the sealing performance is poor at the moment, so that the purpose of monitoring the internal sealing performance in real time is achieved, under the action of the supporting force of the inner wall of the valve sleeve 5, the first valve core 9 and the second valve core 11 can be tightly combined through the hexagon socket head cap screw 10, the valve sleeve has the advantages that the function of the conventional integral valve core is achieved, the first valve core 9 and the second valve core 11 can be taken out respectively by unscrewing the hexagon socket head cap screw 10, the problem that the valve sleeve 5 is clamped by the conventional integral valve core and is difficult to take out is solved, meanwhile, the first valve core 9 and the second valve core 11 are completely consistent in structure, if damage is caused, only the damaged half of the valve core needs to be replaced, and the use cost is reduced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments, or make equivalent substitutions and improvements to part of the technical features of the foregoing embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a two-way cartridge valve leakproofness monitoring mechanism, includes integrated valve piece (1), its characterized in that: the integrated valve comprises an integrated valve block (1), a control cover plate (2) fixedly connected with the top end of the integrated valve block (1), a bulb (4) fixedly connected with the middle part of the upper left end of the control cover plate (2), a valve sleeve (5) slidably connected with an internal socket of the integrated valve block (1), sealing rings (6) fixedly connected with the upper and lower sides of the external part of the valve sleeve (5), a valve seat (7) fixedly connected with the internal bottom end of the valve sleeve (5), a first valve core (9) slidably connected with the internal left side of the valve sleeve (5), a second valve core (11) slidably connected with the internal right side of the valve sleeve (5), a sealing film (13) fixedly connected with the upper left end of the valve seat (7), a sealing film (13) fixedly connected with the middle part of the bottom end of the sealing film (13) at the top end of a first electrode (14), a sliding connection of the internal upper left end of the valve seat (7) at the upper side of the first electrode (14), an insulating shell (17) slidably connected with the lower side of the first electrode (14), a battery (16) is arranged inside the insulating shell (17), and a second electrode (18) is fixedly connected to the bottom end inside the insulating shell (17).

2. The leak tightness monitoring mechanism of a two-way cartridge valve according to claim 1, wherein: the first electrode (14) is electrically connected with the bulb (4), and the second electrode (18) is electrically connected with the bulb (4).

3. The leak tightness monitoring mechanism of a two-way cartridge valve according to claim 1, wherein: the sealing ring (6) is made of ethylene propylene diene monomer rubber, and the sealing film (13) is made of ethylene propylene diene monomer rubber.

4. The leak tightness monitoring mechanism of a two-way cartridge valve according to claim 1, wherein: the top end of the control cover plate (2) is fixedly connected with a pilot valve (3).

5. The leak tightness monitoring mechanism of a two-way cartridge valve according to claim 1, wherein: a first spring (8) is arranged in the valve sleeve (5), and a second spring (15) is arranged in the middle of the first electrode (14).

6. The leak tightness monitoring mechanism of a two-way cartridge valve according to claim 1, wherein: the left side of the inner hexagon bolt (10) is connected with the inner hexagon groove in the inner thread way at the right end of the first valve core (9), and the right side of the inner hexagon bolt (10) is connected with the left end groove of the second valve core (11) in the inner hexagon groove in the inner thread way.

7. The leak tightness monitoring mechanism of a two-way cartridge valve according to claim 1, wherein: the left lower end of the first valve core (9) is fixedly connected with an extrusion block (12).