CN221196242U - Cap structure and stop valve - Google Patents

Abstract

The utility model provides a cap structure and a stop valve, and relates to the technical field of valves. The cap structure comprises a cap body and a boss, wherein the boss is arranged at the top of the cap body along the axial direction of the cap body, and a mounting operation hole is formed in the boss; wherein, the outer wall of boss is the slope setting, and the block body is connected to the big mouth end of boss. Be provided with the installation operation hole in the boss, operating tool can stretch into in the installation operation hole, revolves and twist the block structure, the installation and the dismantlement between block structure and the valve body of being convenient for. Because the outer wall of boss is the slope setting, the large-mouth end connection block body of boss, then the contact connection area between boss and the block body is bigger, makes the structural strength ratio of boss bottom great, avoids twisting the too big risk that leads to the block structure to break and damage of in-process moment of torsion soon. Meanwhile, by adopting the structure, the wall thickness of the boss is not required to be very thick, so that the requirements on torque and structural strength can be met, the effect of thinning is achieved, and the material cost is saved.

Description

Cap structure and stop valve

Technical Field

The utility model relates to the technical field of valves, in particular to a cap structure and a stop valve.

Background

The existing cap has the following defects;

1. When the cap is installed and disassembled, an operator is required to screw the cap, but the force used by different operators cannot be ensured, and if the torque is too large in the screwing process, the risk of the cap edge sliding tooth screwing is caused;

2. The outer part of the cover cap is of a hexagonal structure, and an interlayer is easy to appear at the plane transition part of the cover cap during stamping, so that the quality of a finished product is influenced;

3, when the existing cap is opened and closed, the wrench is required to be used, the size is relatively large, and the operation is inconvenient;

4. the cap has a single structure, and is difficult to meet the diversified demands of users.

Disclosure of utility model

The utility model provides a cap structure and a stop valve, which are used for improving the structural strength and prolonging the service life.

According to a first aspect of the present utility model, there is provided a cap structure comprising:

A cap body;

The boss is arranged at the top of the cap body along the axial direction of the cap body, and a mounting operation hole is formed in the boss;

The outer wall of the boss is obliquely arranged, and the large-opening end of the boss is connected with the cap body.

In some embodiments, the outer wall of the boss has a slope a;

Wherein A is more than or equal to 5 degrees and less than 90 degrees.

In some embodiments, the wall thickness of the large-mouth end of the boss is B1, the wall thickness of the small-mouth end of the boss is B, and the height of the boss is D;

wherein b1=d is tanA +b.

In some of these embodiments, B.gtoreq.1 mm, D.gtoreq.5 mm.

In some embodiments, the installation operation hole is of an inner hexagon structure, and the depth of the installation operation hole along the axial direction of the cap body is H;

wherein H is more than or equal to 5mm.

In some of these embodiments, the outer wall of the cap body is a cylindrical structure; and/or the number of the groups of groups,

The projection of the outer wall of the boss relative to the top surface of the cover surface body is of a circular ring structure or a hexagonal ring structure.

In some embodiments, the cap body is provided with a protrusion along an axial direction of the cap body and in a direction away from the boss, and the mounting operation hole is at least partially provided in the protrusion.

In some of these embodiments, the depth H of the mounting operation hole is greater than the height D of the boss in the cap body axial direction.

In some embodiments, the cap structure further includes a transition portion between and respectively connected to the boss and the cap body, the transition portion being an arcuate structure.

According to a second aspect of the present utility model, an embodiment of the present utility model further provides a stop valve, including a valve body, a valve rod, and the above-mentioned cap structure, where a first channel, a receiving cavity, and a second channel are provided in the valve body, the cap structure is connected to the valve body and covers the receiving cavity, and the valve rod is provided in the receiving cavity and is capable of moving relative to the receiving cavity, and is used for communication and closing between the first channel and the second channel.

One embodiment of the present utility model has the following advantages or benefits:

according to the cap structure and the stop valve provided by the embodiment of the utility model, the installation operation hole is formed in the boss, and the operation tool can extend into the installation operation hole to screw the cap structure, so that the cap structure and the valve body can be conveniently installed and detached. Because the outer wall of boss is the slope setting, the large-mouth end connection block body of boss, then the contact connection area between boss and the block body is bigger, makes the structural strength ratio of boss bottom great, avoids twisting the too big risk that leads to the block structure to break and damage of in-process moment of torsion soon. Meanwhile, by adopting the structure, the wall thickness of the boss is not required to be very thick, so that the requirements on torque and structural strength can be met, the effect of thinning is achieved, and the material cost is saved.

Drawings

For a better understanding of the utility model, reference may be made to the embodiments illustrated in the following drawings. The components in the drawings are not necessarily to scale and related elements may be omitted in order to emphasize and clearly illustrate the technical features of the present utility model. In addition, the relevant elements or components may have different arrangements as known in the art. Furthermore, in the drawings, like reference numerals designate identical or similar parts throughout the several views. The above and other features and advantages of the present utility model will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Wherein:

Fig. 1 is a schematic structural view of a stop valve according to a first embodiment of the present utility model;

Fig. 2 is a schematic structural view of a cap structure according to a first embodiment of the present utility model;

Fig. 3 is a cross-sectional view showing a cap structure according to a first embodiment of the present utility model;

fig. 4 is a top view of a cap structure according to a first embodiment of the present utility model;

fig. 5 is a cross-sectional view showing a cap structure according to a second embodiment of the present utility model;

Fig. 6 is a schematic structural view of a cap structure according to a third embodiment of the present utility model;

fig. 7 is a cross-sectional view showing a cap structure according to a third embodiment of the present utility model;

fig. 8 is a top view showing a cap structure according to a third embodiment of the present utility model;

fig. 9 is a schematic structural view of a cap structure according to a fourth embodiment of the present utility model;

Fig. 10 is a cross-sectional view showing a cap structure according to a fourth embodiment of the present utility model;

fig. 11 is a top view showing a cap structure according to a fourth embodiment of the present utility model.

Wherein reference numerals are as follows:

100. A cap structure; 200. a valve body; 201. a first channel; 202. a receiving chamber; 203. a second channel; 300. a valve stem;

1. A cap body; 11. a bump;

2. A boss; 21. installing an operation hole;

3. A transition portion.

Detailed Description

The technical solutions in the exemplary embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the exemplary embodiments of the present utility model. The example embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present utility model, and it should be understood that various modifications and changes can be made to the example embodiments without departing from the scope of the utility model.

In the description of the present utility model, 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 unless explicitly specified or limited otherwise; the term "plurality" refers to two or more than two; the term "and/or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the/the" object or "an" object are likewise intended to mean one of a possible plurality of such objects.

Unless specified or indicated otherwise, the terms "connected," "fixed," and the like are to be construed broadly and are, for example, capable of being fixedly connected, detachably connected, or integrally connected, electrically connected, or signally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Further, in the description of the present utility model, it should be understood that the terms "upper", "lower", "inner", "outer", and the like in the exemplary embodiments of the present utility model are described in terms of the drawings, and should not be construed as limiting the exemplary embodiments of the present utility model. It will also be understood that in the context of an element or feature being connected to another element(s) "upper," "lower," or "inner," "outer," it can be directly connected to the other element(s) "upper," "lower," or "inner," "outer," or indirectly connected to the other element(s) "upper," "lower," or "inner," "outer" via intervening elements.

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

Example 1

The prior refrigeration system comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger and a stop valve, wherein the stop valve is arranged between the indoor heat exchanger and the outdoor heat exchanger and is used for connecting the indoor unit and the outdoor unit, so as to control the on-off of a refrigerant flow path.

As shown in fig. 1, the present embodiment provides a shut-off valve comprising a valve body 200 and a valve stem 300, wherein a first passage 201, a receiving chamber 202 and a second passage 203 are provided in the valve body 200, and the receiving chamber 202 communicates with the first passage 201 and the second passage 203, respectively. The first channel 201 is an outdoor system side channel, the second channel 203 is an indoor system side channel, and a connection pipe for connecting with an indoor unit is arranged at the outer end of the first channel 201. The valve stem 300 is disposed in the accommodating chamber 202 and is movable with respect to the accommodating chamber 202 to open and close a valve port on the valve body 200 so as to allow communication and closure between the first passage 201 and the second passage 203.

Specifically, the valve rod 300 is provided with external threads, and the interior of the accommodating cavity 202 in the valve body 200 is provided with internal threads, and the internal threads are matched with the external threads of the valve rod 300 to form a thread pair. When the valve stem 300 is rotated, the valve stem 300 moves up and down in the receiving chamber 202 of the valve body 200 by the screw pair, thereby closing or communicating the first passage 201 and the second passage 203.

Before the refrigeration system is installed, the valve rod 300 is rotated to move downwards, the valve rod 300 isolates the first channel 201 from the second channel 203, and the first channel 201 and the second channel 203 are in a closed state, so that a fluid passage such as a refrigerant is disconnected; after the air conditioner of the refrigeration system is installed, the valve rod 300 is rotated to move upwards, and the valve rod 300 is arranged in a dislocation mode with the first channel 201 and the second channel 203, so that the first channel 201 and the second channel 203 are in a communicating state, and fluid channels such as a refrigerant are communicated.

Wherein, the valve rod 300 is provided with an operation hole, and the operation hole is specifically in a socket head cap structure, and when the valve rod 300 is operated, an operation tool such as a socket head cap wrench is adopted to extend into the operation hole to rotate, so that the valve rod 300 can be rotated.

In one embodiment, the shut-off valve further comprises a cap structure 100, wherein the cap structure 100 is connected to the valve body 200 and covers the accommodating cavity 202. Specifically, the cap structure 100 is disposed at the top of the valve body 200, the inner wall of the cap structure 100 is provided with internal threads, the outer wall of the valve body 200 is provided with external threads, and the cap structure 100 and the valve body 200 are detachably connected through a thread pair. The cap structure 100 covers the accommodating cavity 202, and plays roles of attractive appearance and sealing the accommodating cavity 202.

When the cap structure 100 of the stop valve is assembled and disassembled, an operator is required to screw the cap structure 100, the force used by the operator cannot be ensured, and if the torque is too large in the screwing process, the risk of the cap structure 100 being damaged exists.

In order to solve this problem, as shown in fig. 2 to 3, the cap structure 100 provided in this embodiment includes a cap body 1 and a boss 2, the boss 2 is provided at the top of the cap body 1 in the axial direction of the cap body 1, and a mounting operation hole 21 is provided in the boss 2. Wherein, the outer wall of boss 2 is the slope setting, and the big mouth end of boss 2 sets up towards block body 1, and block body 1 is connected to the big mouth end of boss 2.

The cap structure 100 provided in this embodiment is provided with the installation operation hole 21 in the boss 2, and the operation tool can extend into the installation operation hole 21, and the cap structure 100 is screwed, so that the cap structure 100 and the valve body 200 can be conveniently installed and disassembled. Because the large mouth end of boss 2 is towards block body 1, and block body 1 is connected to the large mouth end of boss 2, then contact connection area between boss 2 and the block body 1 is bigger, makes the structural strength ratio of boss 2 bottom bigger, avoids twisting the too big risk that leads to block structure 100 to break open and damage of in-process moment of torsion soon. Meanwhile, by adopting the structure, the wall thickness of the boss 2 can meet the requirements of torque and structural strength without being too thick, and the effect of thinning is achieved so as to save the material cost.

If the outer wall of the cap body 1 adopts a hexagonal structure, when the cap structure 100 is screwed, a spanner wrench with larger size is needed, and the operation is inconvenient. Meanwhile, when the cap body 1 is stamped to form a hexagonal prism structure, quality defects such as an interlayer and the like are easy to generate on the surface of the cap body 1.

For this reason, the outer wall of the cap body 1 provided in this embodiment is of a cylindrical structure, so that when the cap structure 100 is installed, the adjustable wrench cannot be used for operation, but only a small operating tool can be inserted into the installation operation hole 21 to screw the cap body 1. Meanwhile, the cap body 1 with the cylindrical structure can avoid quality defects such as an interlayer in the stamping process, and has fewer materials and lower production cost.

As shown in fig. 2 to 4, the mounting operation hole 21 has a hexagon socket structure.

When the cap structure 100 is installed, the cap structure 100 can only be operated by the socket head cap wrench, and even if the socket head cap wrench uses the limiting operation force, the socket head cap structure 100 is not sufficiently damaged by screwing, so that any operator can operate to screw the cap structure 100 without damaging the cap structure 100. Meanwhile, the nut cap structure 100 is more suitable for application scenes with smaller moment requirements, for example, 0-80 N.m, under the condition of the nut cap structure 100 with the same specification, the appearance of the nut cap structure 100 is reduced, an operation tool is reduced, the operation is more convenient, and the operation tool is convenient to carry.

It will be appreciated that the operating hole of the valve stem 300 and the mounting operating hole 21 of the cap structure 100 are set to be the same or approximately the same, so that they can be operated by the same tool such as an allen wrench, thereby improving the versatility of the operating tool and the convenience of operation.

In one embodiment, as shown in fig. 3-4, the projection of the outer wall of the boss 2 relative to the top surface of the cover body is a circular ring structure. That is, the boss 2 is not a standard cylindrical structure, but a frustum structure with a certain inclination, the connection strength between one end of the boss 2 close to the cap body 1 and the cap body 1 is improved, and even if the size of the mounting operation hole 21 is relatively large, the wall thickness of the boss 2 is relatively thin, and when the operation tool extends into the mounting operation hole 21, the boss 2 does not deform greatly.

If the inclination A of the outer wall of the boss 2 is 90 degrees, the outer wall of the boss 2 and the cap body 1 are mutually perpendicular, and the outer wall of the boss 2 is of a cylindrical structure; if the outer wall inclination a of the boss 2 is greater than 90 °, the small opening end of the boss 2 is arranged towards the cap body 1, and the bottom of the boss 2 is connected with the cap body 1, so that the boss 2 is required to be increased in outer diameter size in order to ensure certain strength in the use process, the boss 2 is ensured to have larger wall thickness, and the requirements of light weight and thinning are not facilitated.

For this purpose, A < 90 DEG, for example, A is 5 DEG, 15 DEG, 35 DEG, 65 DEG, 85 DEG, etc. Because the outer wall inclination A of boss 2 is the acute angle, the large-mouth end of boss 2 sets up towards the block body 1, and the external diameter size of boss 2 need not very big, and the bottom of boss 2 just can have certain structural strength, when satisfying structural strength, still can compromise the demand of lightweight and attenuate. In addition, the inclination A of the outer wall of the boss 2 is more than or equal to 5 degrees, the boss 2 can be guaranteed to have a certain height, and the setting position requirement and the depth requirement of the installation operation hole 21 are met.

In one embodiment, the wall thickness of the large mouth end of the boss 2 is B1, and the wall thickness of the small mouth end of the boss 2 is B. Namely, B1 is the minimum wall thickness of the bottom of the boss 2, B is the minimum wall thickness of the top of the boss 2, and the wall thickness is specifically the difference between the outer diameter and the inner diameter of the corresponding position of the boss 2.

Wherein B.gtoreq.1 mm, for example, B may be 1mm, 5mm, 7mm, 9mm, 10mm, etc. With this arrangement, when the operation tool is inserted into the mounting operation hole 21 from the small-mouth end of the boss 2, if the depth of insertion is shallow, the wall thickness B of the small-mouth end of the boss 2 is relatively large to ensure the structural strength of the small-mouth end of the boss 2.

In one embodiment, the height of the boss 2 is D, D.gtoreq.5 mm, e.g., D may be 5mm, 7mm, 9mm, 10mm, 15mm, etc. In this way, the boss 2 can meet a certain height requirement to provide a larger setting position space for the mounting operation hole 21, that is, the depth of the mounting operation hole 21 along the axial direction of the cap body 1 is deeper, the contact area between the operation tool and the mounting operation hole 21 is increased, and the reliability of the screwing cap structure 100 is improved.

Wherein b1=d is tanA +b. The larger the wall thickness B1 of the large opening end of the boss 2 is, the higher the structural strength of the boss 2 is, so that the height D of the boss 2 and the wall thickness B of the small opening end of the boss 2 can be properly increased, the structural strength of the boss 2 is ensured, and the risk of the boss 2 cracking in the use process is avoided. On the premise of reducing the wall thickness of the boss 2, the structural strength of the boss 2 can be enhanced.

Since the overall wall thickness of the boss 2 is reduced, although the material can be saved, the structural strength of the boss 2 is reduced, and when the operation tool is inserted into the mounting operation hole 21, the boss 2 with a thinner wall thickness may be deformed, resulting in the increase of the aperture size of the mounting operation hole 21 and the occurrence of sliding.

For this reason, the depth of the mounting operation hole 21 in the axial direction of the cap body 1 is H; wherein H.gtoreq.5 mm, for example, H may be 5mm, 7mm, 9mm, 10mm, 15mm, etc. Since the depth of the installation operation hole 21 is substantially the maximum insertion depth of the operation tool, the contact area between the operation tool and the installation operation hole 21 is increased by increasing the depth of the installation operation hole 21, and the risk of sliding teeth is reduced, thereby reducing the risk of damage to the installation operation hole 21 due to sliding teeth.

In one embodiment, as shown in fig. 2-4, the cap structure 100 further includes a transition portion 3, the transition portion 3 being located between and respectively connected to the boss 2 and the cap body 1. The transition part 3 further increases the contact area between the bottom of the boss 2 and the cap body 1, and increases the connection strength.

The transition portion 3 is of an arc-shaped structure, namely, smooth transition connection between the boss 2 and the cap body 1 is achieved, and structural strength of connection between the boss 2 and the cap body 1 is improved.

Example two

This embodiment is similar to the first embodiment, and differs only in the detailed structure in the cap body 1.

As shown in fig. 5, the cap body 1 provided in this embodiment is provided with a bump 11 along the axial direction of the cap body 1 and in a direction away from the boss 2, and the mounting operation hole 21 is at least partially provided in the bump 11.

Through add lug 11 in the inside of block body 1, installation operation hole 21 runs through behind the top of boss 2 and block body 1, stretches into in the lug 11, adopts sinking structure promptly, can reduce the protrusion in the boss 2 height at block body 1 top, and increases the whole atress homogeneity of block structure 100 during the use, when guaranteeing six angle contact area in, still can reduce the whole height of block structure 100 to a certain extent, reduces space occupation volume.

In one embodiment, the depth H of the mounting operation hole 21 is greater than the height D of the boss 2 in the axial direction of the cap body 1. That is, the depth of the mounting operation hole 21 is not limited to the height of the boss 2, but may extend to the boss 11, increasing the insertion depth of the operation tool, thereby increasing the contact area between the operation tool and the boss 2.

Example III

This embodiment is similar to the first embodiment, and differs only in the outer wall structure of the boss 2.

As shown in fig. 6-8, the projection of the outer wall of the boss 2 provided in the embodiment with respect to the top surface of the cover body is a hexagonal ring structure. Namely, the outer part of the boss 2 is of an outer hexagonal structure and can be matched with operating tools such as an adjustable spanner and the like.

At this time, the inside and the outside of boss 2 are hexagonal structure, and compared with prior art, accessible different operating tool acts on interior hexagonal or outer hexagonal, improves operating tool's selection and use flexibility. For the boss 2 with the double-hexagon structure, two different operation tools can be used for operation, and the requirements of different application scenes are met.

Example IV

This embodiment is similar to the third embodiment, and differs only in the detailed structure in the cap body 1.

As shown in fig. 9 to 11, the cap body 1 provided in this embodiment is provided with a bump 11 along the axial direction of the cap body 1 and in a direction away from the boss 2, and the mounting operation hole 21 is at least partially provided in the bump 11. Meanwhile, the projection of the outer wall of the boss 2 relative to the top surface of the cover surface body is of a hexagonal ring structure.

By adopting the mode, the boss 2 with the inner hexagonal structure and the outer hexagonal structure is additionally arranged at the top of the cap body 1, the lug 11 is additionally arranged in the cap body 1, the whole height of the cap structure 100 can be reduced to a certain extent while the inner hexagonal contact area is ensured, and the selection and the use flexibility of an operation tool can be improved.

It should be noted herein that the cap structure shown in the drawings and described in the present specification is only one example employing the principle of the present utility model. It will be clearly understood by those of ordinary skill in the art that the principles of the present utility model are not limited to any details or any components of the devices shown in the drawings or described in the specification.

It should be understood that the utility model is not limited in its application to the details of construction and the arrangement of components set forth in the specification. The utility model is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications are intended to fall within the scope of the present utility model. It should be understood that the utility model disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present utility model. The embodiments described in this specification illustrate the best mode known for carrying out the utility model and will enable those skilled in the art to make and use the utility model.

Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This utility model is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. The specification and example embodiments are to be considered exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.

It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.

Claims (10)

1. A cap structure, comprising:

A cap body;

The boss is arranged at the top of the cap body along the axial direction of the cap body, and a mounting operation hole is formed in the boss;

The outer wall of the boss is obliquely arranged, and the large-opening end of the boss is connected with the cap body.

2. The cap structure of claim 1, wherein the outer wall of the boss has a slope a;

Wherein A is more than or equal to 5 degrees and less than 90 degrees.

3. The cap structure according to claim 2, wherein a wall thickness of a large opening end of the boss is B1, a wall thickness of a small opening end of the boss is B, and a height of the boss is D;

wherein b1=d is tanA +b.

4. A cap structure according to claim 3, wherein B is not less than 1mm and d is not less than 5mm.

5. The cap structure according to claim 1, wherein the mounting operation hole is of an inner hexagonal structure, and a depth of the mounting operation hole in an axial direction of the cap body is H;

wherein H is more than or equal to 5mm.

6. The cap structure according to any one of claims 1 to 5, wherein the outer wall of the cap body is a cylindrical structure; and/or the number of the groups of groups,

The projection of the outer wall of the boss relative to the top surface of the cover surface body is of a circular ring structure or a hexagonal ring structure.

7. The cap structure according to claim 6, wherein the cap body is provided therein with a projection in an axial direction of the cap body and in a direction away from the boss, and the mounting operation hole is at least partially provided in the projection.

8. The cap structure according to claim 7, wherein a depth H of the mounting operation hole is greater than a height D of the boss in an axial direction of the cap body.

9. The cap structure of any one of claims 1-5 or 7-8, further comprising a transition portion between and respectively connected to the boss and the cap body, the transition portion being an arcuate structure.

10. A shut-off valve comprising a valve body, a valve stem and a cap structure according to any one of claims 1-9, wherein a first channel, a receiving chamber and a second channel are provided in the valve body, the cap structure is connected to the valve body and covers the receiving chamber, and the valve stem is provided in the receiving chamber and is movable relative to the receiving chamber for communication and closure between the first channel and the second channel.