CN215891310U

CN215891310U - Improved structure of automatic valve core for water distributor or heating valve

Info

Publication number: CN215891310U
Application number: CN202122402690.1U
Authority: CN
Inventors: 黄晓峰; 黄旭
Original assignee: Taizhou Bancheng Hvac Technology Co ltd
Current assignee: Taizhou Bancheng Hvac Technology Co ltd
Priority date: 2021-10-07
Filing date: 2021-10-07
Publication date: 2022-02-22
Anticipated expiration: 2031-10-07

Abstract

The utility model relates to the field of valves, in particular to an improved structure of an automatic valve core for a water distributor or a heating valve. The valve core comprises a valve core body with an actuator connecting thread and a valve body fixing thread, and a valve rod is arranged in the center shaft of the valve core body; the valve rod is sequentially provided with a sealing ring, a snap spring, a spring and a sealing valve clack outside the valve core body from top to bottom in the valve core body; the upper part of the inner cavity of the valve core body is not provided with a connecting port, the lower end of the valve core body is provided with a top block, and the upper end face of the top block is pushed by a spring. The conventionality is broken in this application, eliminates only upper portion sealing connection structure structurally at the standard case, changes the material simultaneously to further adjust the structure to the change of material, assembly, fixed connection mode before the change, and satisfy each item requirement of current standard part, simultaneously, the product leakproofness is better, market competition is strong, product novel structure, and the design is practical, has market spreading value.

Description

Improved structure of automatic valve core for water distributor or heating valve

Technical Field

The utility model relates to the field of valves.

Background

In the field of valves, especially in the field of intelligent temperature control valves, automatic valve cores are widely used, for example, in "an improved structure of an intelligent valve core of a water separator" with the publication number of CN 210484784U, a valve rod and a spring for upwards resetting the valve rod are arranged in the valve core, so that when an electric heating actuator or a thermal bulb is installed, the valve core can be downwards closed, sealed and reset to open. The valve core structure of the connection structure for the temperature control valve of the notice number CN212690975U is used for a heater valve, the valve core structure is similar, and the opening and closing of the valve are realized by acting on the valve core through a thermal bulb; CN 204922216U's "a scale control case" is similar structure also, and rubber sleeve parcel has the scale inhibition function in the bottom on the valve rod.

The automatic valve core is a standard component of a relatively universal intelligent temperature control valve, and as shown in figure 1, comprises an actuator connecting thread 10 ' and a valve body fixing thread 11 ' of an M30x1.5 standard interface on a valve core body 1 ', and a valve rod 2 ' is arranged in the middle shaft of the valve core body 1 '; the valve rod 2 ' is sequentially provided with a sealing ring 3 ', a clamp spring 4 ', a spring 5 ' and a sealing valve clack 6 ' outside the valve core body 1 ' from top to bottom in the valve core body 1 '; the fittings in the valve core body 1 'are fixedly connected through threads of the valve core cover 7' at the upper part to form a connecting port 12 'and are sealed by an O-shaped ring 13'; the valve core cover 7 'is also provided with a positioning hexagonal structure 70' with 19 mm opposite sides for positioning a standard fixed interface of a part of actuators. The structure and the assembly of accessories are basically shaped in recent years, the improvement is less, the valve core standard part is like a ceramic valve core of a bathroom angle valve, more professional manufacturers for producing the standard valve core part form product standards in the industry.

One automatic valve core is generally arranged on a heater valve, but four, more than five, more than ten or even more than ten automatic valve cores are conventionally arranged on a water separator to meet the control of a plurality of pipelines, and the requirement on sealing is high for batch assembly of the valve cores, so that the sealing structure of the automatic valve core is an important subject of discussion and research in the industry, although the structure of the automatic valve core is basically fixed and is mature.

Disclosure of Invention

The utility model provides an improved automatic valve core structure according to years of production, application and problem feedback of the automatic valve core of the applicant, and the improved automatic valve core structure reduces an upper sealing connection structure on the basis of keeping a standard structure of the valve core, can meet the requirement of execution stress and improves the safety of a sealing element.

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

an improved structure of an automatic valve core used on a water separator or a heating valve comprises a valve core body with an actuator connecting thread and a valve body fixing thread, wherein a valve rod is arranged in the central shaft of the valve core body; the valve rod is sequentially provided with a sealing ring, a snap spring, a spring and a sealing valve clack outside the valve core body from top to bottom in the valve core body; the upper part of the inner cavity of the valve core body is not provided with a connecting port, the lower end of the valve core body is provided with a top block, and the upper end face of the top block is pushed by a spring.

The scheme of the utility model can also be as follows:

the lower end of the valve core body is provided with a bolt positioning hole, the top block is provided with an annular bolt groove, and the bolt fixes the top block on the valve core body through the bolt positioning hole and the annular bolt groove.

The bolt locating hole be equipped with two side by side, the bolt is U type bolt.

The top block is fixed at the bottom of the valve core body through a thread structure.

The valve core body is made of high-temperature-resistant plastic, and the upper part of the outer side of the valve core body is provided with a dismounting groove.

The disassembly and assembly grooves are more than two and are annularly and uniformly distributed on the upper part of the outer side of the valve core body.

The upper part of the valve core body is provided with a positioning cover which is provided with a hexagonal structure.

The lower part of the positioning cover is provided with a lug, and the lug is matched with the dismounting groove to realize limiting; the main body of the positioning cover covers the assembling and disassembling groove.

The sealing ring adopts a double-O-shaped ring structure.

An anti-scaling rubber sleeve is arranged between the top block and the valve rod.

The improved structure of the automatic valve core used on the water separator or the heating valve breaks the conventional way, an upper sealing connection structure is reduced on the standard valve core structure, the material is changed, the structure is further adjusted according to the change of the material, the previous assembling and fixing connection modes are changed, the requirements of the existing standard parts are met, the sealing performance of the product is better, the product is more competitive in the market, the structure of the product is novel, the design is practical, and the market popularization value is high.

Drawings

FIG. 1 is a schematic cross-sectional view of a prior art automatic valve cartridge;

FIG. 2 is a schematic perspective view of an automatic valve core according to the first embodiment;

fig. 3 is a schematic perspective view of a valve core body according to the first embodiment;

FIG. 4 is a schematic perspective exploded view of the automatic valve core of the first embodiment;

FIG. 5 is a schematic sectional perspective view of the automatic valve core according to the first embodiment;

FIG. 6 is a schematic sectional view of the automatic valve core according to the second embodiment;

FIG. 7 is a partial sectional view of the automatic valve core of the third embodiment;

fig. 8 is a schematic perspective view of a valve core body according to a fourth embodiment.

In the figure: the valve core comprises a valve core body 1, an actuator connecting thread 10, a valve body fixing thread 11, a bolt positioning hole 12, a dismounting groove 13, a valve rod hole 14, an anti-scale rubber sleeve 18, a clearance space 19, a valve rod 2, a sealing ring 3, a clamp spring 4, a spring 5, a sealing valve clack 6, a plastic valve seat 60, a fixing part 61, a gap 62, a top block 7, a bolt 8, an upper end face 70, an annular bolt groove 71, a sealing baffle 72, a positioning cover 9, a hexagonal structure 90, a convex block 91, a main body 92, a fixing limiting rib structure 93 and a dismounting hole 94.

Detailed Description

The preferred embodiments of the present invention will be further described with reference to the accompanying drawings.

As shown in fig. 2 to fig. 5, in a first preferred embodiment, an improved structure of an automatic valve core for a water knockout vessel or a heating valve comprises a valve core body 1 with an actuator connecting thread 10 and a valve body fixing thread 11, wherein a valve rod 2 is arranged in the central shaft of the valve core body 1; the valve rod 2 is sequentially provided with a sealing ring 3, a clamp spring 4, a spring 5 and a sealing valve clack 6 outside the valve core body 1 from top to bottom in the valve core body 1; the upper part of the inner cavity of the valve core body 1 is not provided with a connecting port, the lower end of the valve core body 1 is provided with a top block 7, and the upper end surface 70 of the top block 7 is stressed by the thrust of a spring 5.

The automatic valve core is used for a water distributor or a heating valve, the opening and closing of the valve can be intelligently controlled through an electric heating actuator or a thermal bulb, the electric heating actuator or the thermal bulb acts on the valve rod 2 of the automatic valve core, the valve is stressed up and down to open and close a valve fluid medium, and the spring 5 is reset. The actuator connecting thread 10 of the valve core body 1 is an industry standard connecting structure, and the valve body fixing thread 11 is connected with a valve. The valve rod 2 is generally made of a stainless steel rod, so that the strength is high, and the finish machining is convenient. The clamp spring 4 on the valve rod 2 can be integrated with the valve rod 2 into a whole. The upper portion of the valve core body 1 in the prior art is provided with the valve core cover, the valve core cover is provided with the sealing ring through threads, a connecting port is arranged on the upper portion of the valve body, and potential safety hazards exist in the connecting port due to the problems of non-concentric thread machining or quality, size, matching and the like of the sealing ring. The only connecting ports of the inner cavity of the valve core body 1 are reduced, so that the safety of the automatic valve core is greatly improved.

Although the valve rod 2 and the valve core body 1 are provided with the valve rod hole 14, the valve rod hole 14 is good in machining concentricity, simple in process matching, good in matching with the sealing ring 3, extremely high in sealing reliability and basically free of static leakage. Sealing washer 3 adopts two O shape circle structures, and the material degree of adaptability is good, and the structure extension is convenient, can improve fail safe nature by a wide margin, and valve rod 3 has the characteristics of moving about from top to bottom simultaneously, can improve the dynamic seal nature of automatic case. The dynamic sealing performance is also a problem of headache in the industry, and the valve rod can dynamically leak when moving up and down for a long time under the condition of high-pressure and high-temperature media, although the leakage amount is little, the use is not greatly influenced; and two O shape circle structures, the rear end sealing washer can effectively reduce the medium pressure that sealing washer 3 received, and then effectively solve dynamic seepage.

The setting of kicking block 7 is different with the case lid, and because of dynamic motion intaking when the sealed shelves of automatic case bottom, the security of upper portion no connector seal also can be ensured, and sets up the case lid on case body upper portion, then needs to examine the sealed security of case lid and sealing washer. The top block 7 at the lower part of the valve core body 1 is feasible without a sealing ring, the sealing reliability of the sealing at the sealing ring 3 is high, certain air pressure stops, and the liquid medium of the valve is difficult to enter. In an embodiment the top piece 7 is provided with a sealing stop.

The lower end of the valve core body 1 is provided with a bolt positioning hole 12, the top block 7 is provided with an annular bolt groove 71, and the bolt 8 fixes the top block 7 on the valve core body 1 through the bolt positioning hole 12 and the annular bolt groove 71. Relatively with threaded connection, the bolt has the elasticity, has the size automatically regulated size's characteristic, and valve rod 2 can the automatically regulated to case axle center, and can not receive the influence of valve rod hole and screw thread decentraction processing. The valve rod 2 runs vertically and smoothly, the sealing valve clack 6 cannot incline due to the inclination of the valve rod, and the safety of practical application is improved.

The two bolt positioning holes 12 are arranged side by side, and the bolt 8 is a U-shaped bolt. The U-shaped bolt is convenient to install and disassemble and has good consistency.

The top block 7 is pressed by the spring 5, and is repeatedly pressed for dozens of thousands of times in the service life, and the connection reliability of the top block 7 and the valve core body 1 is higher. The top block 7 can also be fixed at the bottom of the valve core body 1 through a thread structure; but the connection of the plug 8 with the annular plug groove 71 is more secure and reliable, and the compactness of the structure is also better.

The valve core body 1 is made of high-temperature-resistant plastic, and the upper part of the outer side of the valve core body 1 is provided with a dismounting groove 13. The applicant has used high-strength plastic to make the valve core body and provided a standard positioning hexagonal structure integrated with the valve core body, and in the installation process, a wrench or a sleeve generally deforms a positioning hexagonal structure plate, so that the positioning of the positioning hexagonal structure is failed. Through repeated design and test of the applicant, the dismounting groove 13 and a special tool are adopted, so that the large pulling force can be provided, and deformation damage is reduced to the minimum. The number of the dismounting grooves 13 is more than two, and the dismounting grooves are annularly and uniformly distributed on the upper part of the outer side of the valve core body 1.

The high-temperature resistant plastic is PPSU, reinforced nylon, POM or other plastic materials.

In order to compensate for the existence of the standard positioning hexagonal structure, the positioning cover 9 is arranged at the upper part of the valve core body 1, and the positioning cover 9 is provided with the hexagonal structure 90. The lower part of the positioning cover 9 is provided with a lug 91, and the lug 91 is matched with the dismounting groove 13 to realize limiting; the main body 92 of the positioning cover 9 covers the dismounting groove 13. Even if the dismounting groove 13 is deformed, the positioning cover 9 can well cover. The positioning cover 9 is installed in the valve core body 1, and the main body 92 is not higher than the upper plane of the actuator connecting thread 10.

The positioning cover 9 is also provided with a fixed limiting rib structure 93 and a dismounting opening 94.

Referring to fig. 6, a second preferred embodiment is shown, which is substantially the same as the first embodiment. An improved structure of an automatic valve core used on a water separator or a heating valve comprises a valve core body 1 with an actuator connecting thread 10 and a valve body fixing thread 11, wherein a valve rod 2 is arranged in the center shaft of the valve core body 1; the valve rod 2 is sequentially provided with a sealing ring 3, a clamp spring 4, a spring 5 and a sealing valve clack 6 outside the valve core body 1 from top to bottom in the valve core body 1; the upper part of the inner cavity of the valve core body 1 is not provided with a connecting port, the lower end of the valve core body 1 is provided with a top block 7, and the upper end surface 70 of the top block 7 is pushed by a force spring 5.

The lower end of the valve core body 1 is provided with a bolt positioning hole, the top block 7 is provided with an annular bolt groove 71, and the bolt 8 fixes the top block 7 on the valve core body 1 through the bolt positioning hole and the annular bolt groove 71. In this embodiment, the upper portion of the annular latch groove 71 is provided with a flange portion, the spring 5 presses the top block 7, and the lower end of the annular latch groove 71 is provided with no flange portion. The bolt positioning holes 12 are arranged side by side, and the bolts (8) are U-shaped bolts.

The valve core body 1 is made of conventional brass materials, and the upper part of the outer side of the valve core body 1 is provided with a dismounting groove 13. Six dismounting grooves 13 are arranged and are annularly and uniformly distributed on the upper part of the outer side of the valve core body 1. The embodiment has no positioning cover, and can meet the positioning requirement of part of electric heating actuators.

The sealing ring 3 adopts a single O-shaped ring structure.

An anti-scaling rubber sleeve 18 is arranged between the top block 7 and the valve rod 2. The antiscale rubber sleeve 18 is cylindrical, a clearance space 19 is arranged between the antiscale rubber sleeve 18 and the valve rod 2, and the clearance space 19 can realize a space required by folding the cylindrical antiscale rubber sleeve 18.

Referring to fig. 7, a third preferred embodiment is shown, which is substantially the same as the first embodiment. An improved structure of an automatic valve core used on a water separator or a heating valve comprises a valve core body 1 with an actuator connecting thread 10 and a valve body fixing thread 11, wherein a valve rod 2 is arranged in the center shaft of the valve core body 1; the valve rod 2 is sequentially provided with a sealing ring, a clamp spring, a spring 5 and a sealing valve clack 6 outside the valve core body 1 from top to bottom in the valve core body 1; the upper part of the inner cavity of the valve core body 1 is not provided with a connecting port, the lower end of the valve core body 1 is provided with a top block 7, and the upper end surface 70 of the top block 7 is pushed by a force spring 5.

In this embodiment, the top block 7 is provided with or without a seal 72 inside or outside.

In the embodiment, the upper part of the sealing valve clack 6 is a valve seat 60, the bottom of the valve seat 60 is of an integral structure, and valve medium cannot leak to the upper part of the valve seat 60 along a gap 62 of a fixed part 61. The slits of the first and second embodiments extend all the way to the upper portion of the valve seat 60, and the present embodiment has no leakage risk compared with other embodiments and the prior art.

In the fourth preferred embodiment shown in fig. 8, the spool body 1 includes actuator connecting threads 10 and valve body fixing threads 11. The upper part of the outer side of the valve core body 1 is provided with a dismounting groove 13, and the dismounting groove 13 is of an inner hexagonal structure. The disassembly and assembly groove 13 comprising the first embodiment and the fourth embodiment is of a groove structure, and the groove structure is relatively protruded to form a convex hexagonal structure, so that the disassembly and assembly are stressed greatly and are not easy to deform. The valve core body 1 is made of high-temperature-resistant plastic, and the groove structure is more suitable for disassembly and assembly.

The lug at the lower part of the positioning cover is matched with the dismounting groove 13 to realize the limit; the positioning cover covers the dismounting groove 13, even if the positioning cover slightly deforms, the dismounting groove can also cover, and the automatic valve core is good in decoration and attractive in appearance in the using process.

The utility model provides an automatic case improvement structure for on water knockout drum or heating valve breaks the conventionality, eliminates only upper portion sealing connection structure in standard case structure, changes the material simultaneously to further adjust the structure to the change of material, assembly, fixed connection mode before changing, and satisfy each item requirement of current standard part, simultaneously, the product leakproofness is better, market competitiveness more, this product novel structure, the design is practical, has market spreading value.

Claims

1. An improved structure of an automatic valve core used on a water separator or a heating valve comprises a valve core body (1) with an actuator connecting thread (10) and a valve body fixing thread (11), wherein a valve rod (2) is arranged in the center shaft of the valve core body (1); a sealing ring (3), a snap spring (4), a spring (5) and a sealing valve clack (6) outside the valve core body (1) are sequentially arranged in the valve core body (1) from top to bottom of the valve rod (2); the method is characterized in that: the upper part of the inner cavity of the valve core body (1) is not provided with a connecting port, the lower end of the valve core body (1) is provided with a top block (7), and the upper end surface (70) of the top block (7) is pushed by a spring (5).

2. The improved structure of the automatic valve core used on the water knockout vessel or the heating valve according to claim 1 is characterized in that: the lower end of the valve core body (1) is provided with a bolt positioning hole (12), the top block (7) is provided with an annular bolt groove (71), and the bolt (8) fixes the top block (7) on the valve core body (1) through the bolt positioning hole (12) and the annular bolt groove (71).

3. The improved structure of the automatic valve core used on the water knockout vessel or the heating valve according to claim 2 is characterized in that: the two bolt positioning holes (12) are arranged side by side, and the bolt (8) is a U-shaped bolt.

4. The improved structure of the automatic valve core used on the water knockout vessel or the heating valve according to claim 1 is characterized in that: the top block (7) is fixed at the bottom of the valve core body (1) through a thread structure.

5. The improved structure of the automatic valve core used on the water knockout vessel or the heating valve according to claim 1 is characterized in that: the valve core body (1) is made of high-temperature-resistant plastic, and the upper part of the outer side of the valve core body (1) is provided with a dismounting groove (13).

6. The improved structure of the automatic valve core used on the water knockout vessel or the heating valve according to claim 5 is characterized in that: the number of the dismounting grooves (13) is more than two, and the dismounting grooves are annularly and uniformly distributed on the upper part of the outer side of the valve core body (1).

7. The improved structure of the automatic valve core used on the water knockout vessel or the heating valve according to claim 5 is characterized in that: the upper part of the valve core body (1) is provided with a positioning cover (9), and the positioning cover (9) is provided with a hexagonal structure (90).

8. The improved structure of the automatic valve core used on the water knockout vessel or the heating valve according to claim 7 is characterized in that: the lower part of the positioning cover (9) is provided with a lug (91), and the lug (91) is matched with the dismounting groove (13) to realize limiting; the main body (92) of the positioning cover (9) covers the dismounting groove (13).

9. The improved structure of the automatic valve core used on the water knockout vessel or the heating valve according to claim 1 is characterized in that: the sealing ring (3) adopts a double-O-shaped ring structure.

10. The improved structure of the automatic valve core used on the water knockout vessel or the heating valve according to claim 1 is characterized in that: an anti-scaling rubber sleeve (18) is arranged between the top block (7) and the valve rod (2).