CN214946461U - Valve device - Google Patents

Abstract

The utility model relates to a valve device, which comprises a valve body, a valve rod and an installation part, wherein the installation part is of an integrated structure or a split structure; the valve device comprises a first passage, a second passage and a containing cavity, and part of the valve rod is positioned in the containing cavity; the mounting part comprises a base, a mounting plate and a connecting plate, the mounting part is provided with a through hole which penetrates through the base and the connecting plate and forms a valve port part on the base, and the mounting plate is connected with the connecting plate; part base is located the valve body and with valve body fixed connection, the tip and the connecting plate butt of valve body, and the second passageway can be through valve opening portion and first passageway intercommunication, and the valve rod can be close or keep away from valve opening portion. The valve device has a relatively simple overall structure, and improves installation efficiency and economy.

Description

Valve device

Technical Field

The utility model relates to a refrigeration control technical field, concretely relates to valve gear.

Background

The idle call low-pressure valve device mainly connects indoor outdoor unit and uses, and valve device includes the valve body and locates valve rod and base in the valve body, and the base sets firmly in the valve body and is equipped with the valve port portion, and the valve rod can with valve port portion between sealed or break away from to realize valve device's break-make.

How to provide a valve device with a simpler structure is a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a valve gear that overall structure is simple relatively.

In order to solve the technical problem, the utility model provides a valve device, which comprises a valve body, a valve rod and an installation part, wherein the installation part is of an integrally formed structure or a split structure;

the valve device comprises a first passage, a second passage and a containing cavity, and part of the valve rod is positioned in the containing cavity;

the mounting part comprises a base, a mounting plate and a connecting plate, the mounting part is provided with a through hole, the through hole penetrates through the base and the connecting plate, a valve port part is formed in the base, and the mounting plate is connected with the connecting plate;

part the base is located in the valve body and with valve body fixed connection, the tip of valve body with the connecting plate butt, the second passageway can pass through the valve port portion with first passageway intercommunication, the valve rod can be close to or keep away from the valve port portion.

The base, the mounting plate and the connecting plate can be of a split structure and can be processed and formed independently and then assembled and fixed in a welding mode and the like, so that the processing technology of a single part can be simplified; or can also be with the base, mounting panel and connecting plate set up to integrated into one piece's structure, thereby can reduce the quantity of spare part, simplify overall structure and processing technology, reduce cost, when specifically installing, arrange partial base in the valve body, make valve port portion and second passageway intercommunication, and the tip and the connecting plate butt of valve body, then with valve body and connecting plate welded fastening can, that is to say, can accomplish the installation between valve body and base and valve body and the installation department through once welding, thereby simplify the installation operation, reduce welding position, with low costs and installation high efficiency.

Drawings

Fig. 1 is a schematic structural view of a valve device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the valve assembly in a fully closed condition;

FIG. 3 is an enlarged view of A in FIG. 2;

FIG. 4 is a cross-sectional view of the valve assembly in a fully open condition;

FIG. 5 is a schematic view of the structure of the mounting base;

FIGS. 6 and 7 are cross-sectional views of the mount;

FIG. 8 is a schematic view of a tube;

FIG. 9 is a cross-sectional view of FIG. 8;

FIG. 10 is a cross-sectional view of the valve stem;

fig. 11 is a cross-sectional view of the sleeve.

In the accompanying fig. 1-11, the reference numerals are illustrated as follows:

1-a valve body, 11-a pipe body, 12-a second channel, 13-a containing cavity, 14-a first interface, 15-a first channel, 16-a connecting nut, 17-a second interface and 18-a filling channel;

2-valve rod, 21-sealing surface, 22-external thread part, 23-limit matching surface, 24-sealing groove and 25-driving hole;

3-mounting part, 31-base, 311-valve port part, 312-annular boss, 32-mounting plate, 321-mounting hole, 33-connecting plate and 34-step structure;

4-sleeve, 41-internal thread part, 42-limit structure, 43-matching section, 44-sleeve body;

5-valve inside;

6-filling the valve cap;

7-sealing ring.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

The embodiment of the utility model provides a valve device, as shown in fig. 1-3, this valve device includes valve body 1, valve rod 2 and installation department 3, 3 formula structures or split type structures as an organic whole of this installation department, this valve device still includes first passageway 15, second passageway 12 and holds chamber 13, part valve rod 2 is installed and is being held in chamber 13 and can follow the axial displacement who holds chamber 13, 15 tip of first passageway are equipped with takeover nut 16 for communicate with the indoor set pipeline, second passageway 12 is used for and the off-premises station intercommunication. The mounting portion 3 includes a base 31, a mounting plate 32, and a connecting plate 33, the mounting portion 3 is provided with a through hole that penetrates the base 31 and the connecting plate 33, the mounting plate 32 is connected to the connecting plate 33, the mounting plate 32 is used to mount the valve device, specifically, the mounting plate 32 is provided with a mounting hole 321, and mounting can be achieved by mounting bolts.

Part of the base 31 is located in the valve body 1 and fixedly connected with the valve body 1, the end of the valve body 1 is abutted against the end face of the connecting plate 33, the through hole forms a valve port 311 at the base 31, the second channel 15 can be communicated with the first channel 15 through the valve port 311, the valve rod 2 can move towards one side close to or far away from the valve port 311 along the axial direction of the accommodating cavity 13, when the valve rod 2 moves towards one side of the valve port 311 until the sealing surface 21 of the valve rod is in sealing fit with the valve port 311, as shown in fig. 2, the valve device is in a fully closed state, the first channel 15 is disconnected from the second channel 12, and when the valve rod 2 moves towards one side far away from the valve port 311 until the sealing surface 21 of the valve rod is separated from the valve port 311, the valve device is in an open state, and the first channel 15 is communicated with the second channel 12.

Before the air conditioner is installed, the valve rod 2 is in contact with the valve port part 311 for sealing, so that the second channel 12 on the outdoor system side is closed, and after the air conditioner is installed, the valve rod 2 moves until the sealing surface 21 is separated from the valve port part 311 for opening the second channel 12, and the first channel 15 and the second channel 12 are communicated.

The base 31, the mounting plate 32 and the connecting plate 33 can be of a split structure, are independently processed and formed and then assembled and fixed in a welding mode and the like, and the processing technology of a single part can be simplified; or can also set up base 31, mounting panel 32 and connecting plate 33 into integrated into one piece's structure, thereby can reduce the quantity of spare part, simplify overall structure and processing technology, reduce cost, when specifically installing, arrange partial base 31 in valve body 1, make valve port portion 311 and second passageway 12 intercommunication, and the tip and the connecting plate 33 butt of valve body 1, then with valve body 1 and connecting plate 33 welded fastening can, that is to say, can accomplish the installation between valve body 1 and base 31 and valve body 1 and the installation department 3 through once welding, thereby simplify the installation operation, reduce the welding position, with low costs and installation effectiveness.

As shown in fig. 5, the number of the mounting plates 32 is two, the two mounting plates 32 are symmetrically arranged on two sides of the connecting plate 33, a step structure 34 is formed between the mounting plates 32 and the connecting plate 33, the mounting plates 32 are located on one side of the connecting plate 33 far away from the base 31, specifically, when the valve device is installed, the base 31 is located in the second channel 12, the end part of the second channel 12 is abutted to the end surface of the connecting plate 33, and when the step structure 34 is located between the mounting plates 32 and the connecting plate 33, the mounting plates 32 can be slightly far away from the second channel 12, so that the valve device can be installed and fixed through the mounting plates 32, and meanwhile, the installation of the mounting plates 32 can be prevented from being influenced due to the insufficient installation space. Specifically, the height of the step structure 34 between the connecting plate 33 and the mounting plate 32 is not limited, and may be set according to a specific mounting condition, and the heights of the step structures 34 between the two mounting plates 32 and the connecting plate 33 may be the same or different, and may be specifically set according to the structure of the mounting position.

As shown in fig. 3 and 6, the end of the base 31 may further be provided with an annular boss 312 along the radial direction inward, the annular boss 312 encloses the valve opening 311, and the sealing surface 21 of the valve rod 2 can be in close sealing contact with the end of the inner edge of the annular boss 312. Specifically, when the sealing surface 21 has a tapered structure, the inner edge of the annular boss 312 surrounds and forms the valve opening 311. Alternatively, the base 31 may be configured as a straight cylinder (as shown in fig. 7), and the top end of the straight cylinder encloses the valve opening 311. Specifically, the base 31 may be set according to practical situations, and is not particularly limited herein.

In the above embodiment, as shown in fig. 8 and 9, the valve body 1 includes a tube body 11, one end of the tube body 11 forms the second passage 12, the other end of the tube body 11 forms the accommodating chamber 13, a side wall of the tube body 11 is opened with a first through hole, a peripheral wall of the first through hole is drawn outwards along an axial direction thereof to form a first port 14, and the first port 14 is connected with the first passage 15. That is, the base 31 is fixedly disposed in the tube 11, and an end of the tube 11 abuts against an end surface of the connecting plate 33.

Two ends of the pipe body 11 respectively form a second channel 12 and an accommodating cavity 13, and the first channel 15 is formed by drawing through the peripheral wall of a first through hole arranged on the side wall of the pipe body 11, that is, the main body part of the valve body 1 is a pipe structure, and a first interface 14 of the first channel 15 is formed by forming the first through hole on the side wall of the pipe structure and drawing, so that the manufacturing cost of the valve body 1 is effectively reduced compared with the scheme that the valve body 1 is formed by lathing after forging and pressing, heating equipment, forging and pressing equipment, a die and the like are not needed, and moreover, the manufacturing efficiency can be effectively improved and the product qualification rate is improved due to the simplified process.

In this embodiment, the material of valve body 1 is the steel, and the material of valve rod 2 is copper, perhaps, also can set up this valve body 1 and valve rod 2 whole into the copper product, and set up the material of valve rod 2 into the steel when, can effective reduce cost, and body 11 is the steel pipe, and this steel pipe forms the interface through drawing and welds in order to form valve body 1 with other parts, and the preparation technology is comparatively simple.

The outer wall of the valve rod 2 is provided with an external thread part 22, the inner wall of the accommodating cavity 13 is provided with an internal thread part 41, the external thread part 22 is in threaded fit with the internal thread part 41, and when the valve rod 2 rotates, the valve rod 2 can move along the axial direction thereof to be matched with or separated from the valve port part 311 through the threaded fit between the external thread part 22 and the internal thread part 41.

Specifically, as shown in fig. 10, one end of the valve rod 2 away from the valve port 311 is provided with a driving hole 25 along the axial direction thereof, and the driving hole 25 may be a hexagonal socket or a square socket, or may be a circular hole and a key groove is formed in the inner wall of the circular hole, which is not particularly limited herein. The external rotation device rotates the valve stem 2 linearly in the axial direction of the receiving chamber 13 by engaging with the driving hole 25 and rotating it through the driving hole 25.

As shown in fig. 10, a sealing groove 24 is formed in the outer wall of the valve rod 2 along the circumferential direction, and the sealing ring 7 is installed in the sealing groove 24, or the sealing groove 24 may be formed in the inner wall of the accommodating chamber 13, and the sealing groove 24 is formed in the outer wall of the valve rod 2, so that the manufacturing process can be simplified.

As shown in fig. 1, 2 and 4, the end of the tube 11 facing the accommodating cavity 13 is further provided with a sleeve 4, the sleeve 4 is welded and fixed to the end of the tube 11, and the inner wall of the sleeve 4 is provided with the internal thread portion 41, when the valve assembly is installed, the sleeve 4 and the valve rod 2 can be firstly in threaded fit, the valve rod 2 is installed in the tube 11, and then the sleeve 4 and the end of the tube 11 are welded and fixed, specifically, laser welding or argon arc welding or the like can be adopted. Or, in this embodiment, the internal thread portion 41 may be disposed in the tube 11, and the sleeve 4 may be disposed to simplify the processing process, so as to reduce the cost and improve the yield of the product.

Further, sleeve 4 still is equipped with limit structure 42 along circumference, and the outer wall of valve rod 2 still is equipped with spacing fitting surface 23, and this valve rod 2 can outwards move to spacing fitting surface 23 and limit structure 42 butt cooperation along the axial of holding chamber 13, explains that at this moment, the valve gear is in the full open state (as shown in fig. 4), that is to say, this sleeve 4 can carry on spacingly to the axial displacement of valve rod 2, avoids valve rod 2 to remove too greatly and the condition that breaks away from with body 11.

At least one of the limit structure 42 and the limit matching surface 23 is a conical surface structure, when the limit matching surface 23 abuts against the limit structure 42, the conical surface structure can be tightly attached to the other, so that a sealing structure can be formed between the limit structure and the limit structure, that is, when the valve device is in a fully open state, the sealing ring 7 forms a sealing structure in the valve rod 2 and the accommodating cavity 13, a sealing structure can be formed between the limit matching surface 23 and the limit structure 42, the sealing performance of the accommodating cavity 13 can be ensured through the two sealing structures, and the medium is prevented from leaking from the position.

As shown in fig. 11, the sleeve 4 includes a sleeve body 44 and a matching section 43, wherein the matching section 43 extends toward one side of the tube 11 along an axial direction of the sleeve body 44, an outer diameter of the sleeve body 44 is greater than an outer diameter of the matching section 43 and is matched with the outer diameter of the tube 11, the sleeve body 44 is equivalent to the axially extending section of the tube 11, and the internal thread portion 41 is disposed on an inner wall of the sleeve body 44, specifically, when the sleeve 4 is installed, the matching section 43 is sleeved in the tube 11, a welding position between the sleeve 4 and the tube 11 is between an end portion of the sleeve body 44 facing the matching section 43 and an end portion of the tube 11, one end of the matching section 43 away from the sleeve body 44 forms the limiting structure 42, specifically, the limiting structure 42 may be provided with the above-mentioned conical surface structure, or the limiting matching surface 23 may be a conical surface structure. The arrangement of the matching section 43 can form the limiting structure 42 in the sleeve body 44, and can also provide a positioning function for the welding operation between the sleeve 4 and the pipe body 11.

As shown in fig. 8 and 9, the side wall of the valve body 1 is further provided with a second through hole, the side wall of the second through hole is drawn outward in the axial direction thereof to form a second port 17, a filling channel 18 is connected to the second port 17, and a valve core 5 is provided in the filling channel 18. When the valve device is in a fully closed state, as shown in fig. 2 and 3, the valve rod 2 is in sealing fit with the valve port 311, at this time, the first passage 15 and the second passage 12 are disconnected, but the first passage 15 and the charging passage 18 are kept in a communication state, i.e., a refrigerant medium can be introduced into the first passage 15 through the charging passage 18.

The valve device that this embodiment provided, valve body 1 mainly makes through steel pipe machining, specifically has seted up two through-holes of first through-hole and second through-hole at the lateral wall of steel pipe to each through-hole forms the interface that is used for connecting first passageway 15 and notes passageway 18 respectively through drawing, simplifies the manufacture craft of valve body 1, reduces the equipment requirement simultaneously, reduction in production cost, and can guarantee the qualification rate of product.

Further, as shown in fig. 1, 2 and 4, the end of the filling passage 18 is further provided with a filling bonnet 6, the filling bonnet 6 is in threaded connection with the end of the filling passage 18, when the filling of refrigerant medium is not needed, the filling bonnet and the filling passage 18 are kept in an installation state, the filling bonnet 6 can provide protection for the filling passage 18, meanwhile, the sealing state of the filling passage 18 can be further ensured, and when the filling of refrigerant medium is needed, the filling bonnet 6 is detached to feed the refrigerant medium into the first passage 15 through the filling passage 18.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (11)

1. The valve device is characterized by comprising a valve body (1), a valve rod (2) and a mounting part (3), wherein the mounting part (3) is of an integrally formed structure or a split structure;

the valve device comprises a first channel (15), a second channel (12) and a containing cavity (13), and part of the valve rod (2) is positioned in the containing cavity (13);

the mounting part (3) comprises a base (31), a mounting plate (32) and a connecting plate (33), the mounting part (3) is provided with a through hole which penetrates through the base (31) and the connecting plate (33) and forms a valve opening part (311) on the base (31), and the mounting plate (32) is connected with the connecting plate (33);

part base (31) be located valve body (1) and with valve body (1) fixed connection, the tip of valve body (1) with connecting plate (33) butt, second passageway (12) can pass through valve mouth portion (311) with first passageway (15) intercommunication, valve rod (2) can be close to or keep away from valve mouth portion (311).

2. The valve device according to claim 1, characterized in that the number of the mounting plates (32) is two, two mounting plates (32) are symmetrically arranged on two sides of the connecting plate (33), a step structure (34) is formed between the mounting plates (32) and the connecting plate (33), and the mounting plates (32) are positioned on one side of the connecting plate (33) far away from the base (31).

3. A valve device according to claim 1, characterized in that the end of the base (31) is provided with an annular boss (312) radially inwards, the annular boss (312) encloses the valve opening (311), and the sealing surface (21) of the valve rod (2) can be matched and sealed with the end of the inner edge of the annular boss (312).

4. A valve device according to any one of claims 1 to 3, wherein the valve body (1) comprises a tube body (11), one side end of the tube body (11) forms the second passage (12), the other side end of the tube body (11) forms the accommodating cavity (13), and a sealing ring (7) is arranged between the outer wall of the valve rod (2) and the inner wall of the accommodating cavity (13);

the side wall of the pipe body (11) is provided with a first through hole, the peripheral wall of the first through hole is drawn outwards along the axial direction of the first through hole to form a first interface (14), and the first interface (14) is connected with the first channel (15).

5. A valve device according to claim 4, characterized in that the valve body (1) is made of steel.

6. A valve device according to claim 4, characterized in that the outer wall of the valve stem (2) is provided with an externally threaded portion (22), the inner wall of the housing chamber (13) is provided with an internally threaded portion (41), and the externally threaded portion (22) and the internally threaded portion (41) are threadedly engaged.

7. The valve device according to claim 6, characterized in that a sleeve (4) is welded and fixed to one end of the pipe body (11) facing the accommodating cavity (13), the valve rod (2) can penetrate through the sleeve (4), and the inner wall of the sleeve (4) is provided with the internal thread portion (41).

8. The valve device according to claim 7, characterized in that the sleeve (4) is provided with a limiting structure (42) along the circumferential direction, the outer wall of the valve rod (2) is further provided with a limiting matching surface (23), and the valve rod (2) can move outwards along the axial direction of the accommodating cavity (13) until the limiting matching surface (23) is in abutting fit with the limiting structure (42).

9. The valve device according to claim 8, wherein at least one of the position-limiting structure (42) and the position-limiting mating surface (23) is a conical surface structure, and when the position-limiting mating surface (23) can be sealed with the position-limiting structure (42) in a fitting manner.

10. The valve device according to claim 8, wherein the sleeve (4) comprises a sleeve body (44) and a matching section (43), the matching section (43) is axially extended along the end of the sleeve body (44), the outer diameter of the sleeve body (44) is larger than that of the matching section (43), the inner wall of the sleeve body (44) is provided with the internal thread portion (41), the matching section (43) is sleeved in the pipe body (11), and one end, away from the sleeve body (44), of the matching section (43) forms the limiting structure (42).

11. The valve device according to claim 4, characterized in that the side wall of the valve body (1) is further provided with a second through hole, the peripheral wall of which is drawn axially outwards to form a second interface (17), a filling channel (18) is connected to the second interface (17), the filling channel (18) is communicated with the first channel (15), and a valve core (5) is arranged in the filling channel (18).

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