CN108374930B

CN108374930B - Stop valve auxiliary switch device and stop valve

Info

Publication number: CN108374930B
Application number: CN201810018366.XA
Authority: CN
Inventors: 冯维庆; 杨春雪; 李旭; 张晓迪; 夏鹏; 徐梦飞; 刘晓凯; 闫学勇
Original assignee: Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2018-01-09
Filing date: 2018-01-09
Publication date: 2020-11-17
Anticipated expiration: 2038-01-09
Also published as: CN108374930A

Abstract

The invention discloses an auxiliary switch device of a stop valve, and belongs to the technical field of valve structures. The auxiliary switching device includes: the fixed disc is used for being fixedly sleeved with the valve body of the stop valve; the movable disc is sleeved on the periphery of the fixed disc and can rotate relative to the axial direction of the fixed disc, and a plurality of clamping units are sequentially arranged on the periphery of the movable disc; one end of the torsion piece is used for being fixed with the rotary core of the stop valve, and the other end of the torsion piece is fixed with the movable disc; the clamping and rotating handle comprises a first clamping rod and a second clamping rod which form a clamp-shaped pin joint match, wherein the first end of the first clamping rod is connected to the fixed plate, and the second end of the first clamping rod is a first handle end; the first end of the second clamping rod is provided with a clamping hook which can be hooked with any clamping unit, and the second end is a second handle end. The auxiliary opening and closing device of the stop valve provided by the invention converts the torsional acting force of the valve body and the internal rotating core of the stop valve into the acting force between the two clamping rods of the clamping handle, and the opening and closing torsional operation of the stop valve can be more stable through the auxiliary opening and closing device.

Description

Stop valve auxiliary switch device and stop valve

Technical Field

The invention relates to the technical field of valve structures, in particular to an auxiliary opening and closing device of a stop valve and the stop valve.

Background

At present, the refrigerant pipeline of an air conditioner mostly adopts a stop valve to control the on-off of the refrigerant pipeline, wherein the right-angle valve is most commonly applied, the front pipeline and the rear pipeline of a valve body of the right-angle valve form 90 degrees, the size of the valve body is small, the general length is about 5cm, the height is about 4cm, the pipelines on the front side and the rear side of the connected pipeline can bear shearing force in the process of rotating a core and twisting a control switch, and particularly can bear larger shearing impact force in the initial stage of opening.

Generally, the operation of twisting the shut-off valve is to fix the valve body by a wrench and then to rotate the rotary core of the shut-off valve by an inner hexagonal socket. The problem that the stop valve is difficult to screw and needs large torque when initially screwed can occur in the operation mode, and internal components of the stop valve are easily damaged when the stop valve is stressed unevenly, so that the service life of the stop valve is influenced.

Disclosure of Invention

The invention provides an auxiliary opening and closing device of a stop valve and the stop valve, and aims to solve the problem that the existing stop valve is easy to damage due to an opening and closing operation mode. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of the present invention, there is provided a shutoff valve auxiliary opening and closing apparatus comprising:

the fixed disc is used for being fixedly sleeved with the valve body of the stop valve;

the movable disc is sleeved on the periphery of the fixed disc and can rotate relative to the axial direction of the fixed disc, and a plurality of clamping units are sequentially arranged on the periphery of the movable disc;

one end of the torsion piece is used for being fixed with the rotary core of the stop valve, and the other end of the torsion piece is fixed with the movable disc;

a clamping and rotating handle, which comprises a first clamping rod and a second clamping rod which form a clamp shape and are pivoted and matched, wherein,

the first end of the first clamping rod is connected to the fixed plate, and the second end of the first clamping rod is a first handle end;

the first end of the second clamping rod is provided with a clamping hook which can be hooked with any clamping unit, and the second end is a second handle end.

In an optional embodiment, the fixed plate is of a disc structure, and a first accommodating port sleeved with the valve body is formed in the middle of the fixed plate; the movable disc is a disc structure, a second accommodating port for accommodating and sleeving the fixed disc is formed in the middle of the movable disc, and the movable disc and the fixed disc axially rotate through a bearing structure.

In an alternative embodiment, the fixed plate has a handle holding part formed along the axial extension thereof; the first end of the first clamping rod is perpendicular to the axial direction and is connected with the handle clamping part.

In an alternative embodiment, the first clamping bar is rotatable relative to the handle catch.

In an alternative embodiment, the first clamping bar further comprises a first bar section and a second bar section which are butted by a rotary joint, wherein the non-butted end of the first bar section is a first end, the non-butted end of the second bar section is a second end, and the pivot point is arranged on the second bar section.

In an alternative embodiment, a telescopic member is disposed between the first clamping bar and the second clamping bar, and two ends of the telescopic member are respectively connected with the first clamping bar and the second frame bar.

In an alternative embodiment, the holding unit includes a plurality of blocks formed to extend outward in a radial direction of the movable plate, and the plurality of blocks are arranged at intervals.

In an alternative embodiment, the clamping unit comprises a clamping groove concavely formed on the periphery of the movable disc, and the plurality of clamping grooves are arranged at intervals.

In an alternative embodiment, the rotary core of the stop valve is of an inner hexagonal structure, and one end of the torsion piece fixed with the rotary core is provided with a matched inner hexagonal groove hole.

According to a second aspect of the present invention, there is also provided a cut-off valve having any one of the cut-off valve auxiliary opening and closing apparatuses described above.

The invention adopts the technical scheme and has the beneficial effects that:

the auxiliary opening and closing device of the stop valve provided by the invention converts the torsional acting force of the valve body and the internal rotating core of the stop valve into the acting force between the two clamping rods of the clamping handle, thereby reducing the adverse effects of the torsional force and the impact load on the fragile pipeline in the stop valve.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a first schematic illustration of the configuration of the auxiliary switching device of the shut off valve of the present invention according to an exemplary embodiment;

fig. 2 is a second schematic structural view of the auxiliary opening/closing device of the cutoff valve according to the present invention shown in an exemplary embodiment.

Wherein, 1, fixing the disc; 2. a movable plate; 3. a torsion member; 4. a stop valve; 41. rotating the core; 5. a first clamping bar; 6. a second clamping bar; 61. a hook is clamped; 7. a telescoping member; 8. a chucking unit; 9. a pivot point.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.

FIG. 1 is a first schematic structural view of the auxiliary switching device of the shut off valve of the present invention according to an exemplary embodiment, showing a top-view assembly structure capable of twisting the shut off valve in a clockwise direction; fig. 2 is a second structural schematic diagram of the auxiliary opening and closing device of the shut-off valve of the present invention according to an exemplary embodiment, showing a top-view assembly structure capable of twisting the shut-off valve in a counterclockwise direction.

As shown in fig. 1 and 2, the present invention provides an auxiliary opening and closing device for a shut valve, which can be used in cooperation with a shut valve 4 to control the opening and closing of the shut valve 4 by twisting a rotary core 41 of the shut valve 4. Specifically, this auxiliary switch device includes price fixing 1, driving disk 2, twist reverse 3 and press from both sides the change handle, 1 cover of price fixing is established on stop valve 4, 2 covers of driving disk are established in the periphery of price fixing 1, press from both sides the change handle and can drive driving disk 2 and rotate for price fixing 1, and simultaneously, driving disk 2 is connected through the commentaries on classics core 41 of twisting reverse 3 with stop valve 4, and like this, at 2 pivoted in-process of driving disk, can drive in step and change core 41 synchronous rotations, thereby realize opening or closing operation of stop valve 4.

The auxiliary opening and closing device of the stop valve provided by the invention converts the torsional acting force of the valve body and the internal rotating core 41 of the stop valve 4 into the acting force between the two clamping rods of the clamping handle, thereby reducing the adverse effects of the torsional force and the impact load on the fragile pipeline in the stop valve 4, ensuring the more stable opening and closing torsional operation of the stop valve 4 through the auxiliary opening and closing device, and effectively protecting the internal parts of the stop valve 4

In the embodiment, the fixed disc 1 is a disc structure, the middle part of the fixed disc is provided with a first accommodating port for sleeving the valve body, the valve body of the stop valve 4 extends into the first accommodating port, and the fixed disc 1 and the valve body of the stop valve 4 are fixedly sleeved.

Specifically, the valve body of the stop valve 4 is generally formed with a fixed seat structure, and the first receiving opening can be designed to be in a clamping structure form matched with the fixed seat, for example, for the cylindrical stop valve 4, a rectangular fixed seat structure is formed on the valve body, and the first receiving opening can also be designed to be in a rectangular opening structure, and the size of the first receiving opening is slightly larger than the outer size of the fixed seat.

Or, the fixed plate 1 can also be directly fixed with the valve body in a welding mode, and the first accommodating port is sleeved on the periphery of the valve body and then welded and fixed.

In various embodiments of the present invention, during the rotation of the movable plate 2 relative to the fixed plate 1, the fixed plate 1 does not move, i.e. the fixed plate 1 does not rotate relative to the valve body.

In the embodiment, similar to the structure of the fixed disc 1, the movable disc 2 is also in a disc structure, the movable disc 2 is sleeved on the periphery of the fixed disc 1, and the movable disc 2 and the fixed disc 1 form a coaxial fit; a second accommodating port for accommodating the sleeved fixed disc 1 is formed in the middle of the movable disc 2.

The movable disc 2 can rotate axially relative to the fixed disc 1, and specifically, the movable disc 2 and the fixed disc 1 realize axial rotation through a bearing structure.

Concretely, bearing arrangement locates the circumference that driving disk 2 and price fixing 1 cup jointed mutually, and bearing arrangement includes first spout and second spout, and wherein, first spout extends the shaping along the periphery border of price fixing 1, and at the embedded a plurality of rotatable balls or roller bearing that is equipped with of first spout, and the shaping is extended along the interior border of driving disk 2 to the second spout, and when 2 covers of driving disk were established on price fixing 1, the capping and a plurality of balls or roller bearing of second spout contacted. Like this, bearing structure can reduce the frictional force when driving disk 2 and the relative rotation of fixed plate 1, improves driving disk 2 pivoted smoothness nature, makes things convenient for technical staff's operation.

In the embodiment of the invention, the torsion member 3 is a rod-shaped structure, one end of the torsion member 3 is used for being fixed with the rotating core 41 of the stop valve 4, and the other end is fixed with the movable disk 2, so that the torsion member 3 can rotate along the axial direction synchronously with the movable disk 2, because the rotating direction of the movable disk 2 can rotate along the same direction as the rotating direction of the rotating core 41 when the stop valve 4 is opened, if the rotating direction of the rotating core 41 when the stop valve 4 is opened is clockwise, when the movable disk 2 rotates along the clockwise direction, the torsion member 3 synchronously drives the rotating core 41 to rotate along the clockwise direction, and the operation of opening the stop valve 4 can be realized; similarly, the rotation direction of the rotating core 41 is counterclockwise when the stop valve 4 is closed, and when the movable disk 2 rotates counterclockwise, the rotating core 41 is synchronously driven by the torsion part 3 to rotate counterclockwise, so that the stop valve 4 can be closed.

Generally, the rotating core 41 of the stop valve 4 is of an inner hexagonal prism structure, the rotating core 41 is matched, the end, fixed with the rotating core 41, of the torsion piece 3 is provided with an inner hexagonal groove matched with the rotating core 41, when the auxiliary switch device is assembled with the stop valve 4, the inner hexagonal groove is buckled at the free end of the inner hexagonal prism structure, and due to the limit matching effect of the prism structure and the inner hexagonal groove, the torsion piece 3 can drive the rotating core 41 to rotate.

In the embodiment of the present invention, the technician can apply its rotational driving force to the movable disk 2 by the grip rotating handle.

Specifically, a plurality of clamping units 8 are sequentially arranged on the periphery of the movable disc 2; the clamping and rotating handle comprises a first clamping rod 5 and a second clamping rod 6 which form a clamp-shaped pin joint matching, and a pin joint point 9 of the first clamping rod 5 and the second clamping rod 6 is a rotating shaft structure in the embodiment.

Wherein, the first end of the first clamping rod 5 is connected to the fixed plate 1, and the second end is a first handle end; the first end of the second clamping rod 6 is formed with a hook 61 capable of hooking any clamping unit 8, and the second end is a second handle end. The technical personnel in the field can open and close the first end of the first clamping rod 5 and the first end of the second clamping rod 6 synchronously by opening and closing the first handle end and the second handle end which are far away from or close to each other, the first clamping rod 5 does not rotate in the opening and closing process, the second clamping rod 6 rotates relative to the first clamping rod 5, and when the clamping and rotating handle is opened by the technical personnel, the first end of the second clamping rod 6 can be used for forming a clamping unit 8 which is slightly far away from the first end of the first clamping rod 5 on the movable disk 2, then the technical personnel can close the clamping and rotating handle, and due to the clamping limiting effect of the first end of the second clamping rod 6 and the clamping unit 8, the clamping unit 8 driven by the first end of the second clamping rod 6 runs towards the direction close to the first end of the first clamping rod 5, and at the moment, the clamping handle can drive the movable disk 2.

Then, by repeating the opening and closing operation, the driving disc 2 can be continuously rotated in the same rotational direction, and the rotary core 41 of the stop valve 4 can be opened and closed in the rotational direction.

In an embodiment of the present invention, the holding unit 8 includes a plurality of blocks extending outward in a radial direction of the movable plate 2, and the plurality of blocks are arranged at intervals.

In another embodiment of the present invention, the holding unit 8 includes a plurality of holding grooves formed concavely on the outer circumference of the movable plate 2, and the plurality of holding grooves are arranged at intervals.

The two clamping units 8 can be hooked and limited to be matched with the clamping hook 61.

In the embodiment of the present invention, the fixed plate 1 has a handle holding part formed extending along the axial direction thereof; the first end of the first clamping rod 5 is vertical to the axial direction and is connected with the handle clamping part; in the embodiment, the first clamping bar 5 and the handle clamping portion are approximately in the same plane, and the second clamping bar 6 and the movable disk 2 are approximately in the same plane height, so that the connecting position of the first end of the first clamping bar 5 and the handle clamping portion needs to take the rod thickness of the first clamping bar 5 and the second clamping bar 6 into consideration, so as not to affect the hooking and matching of the hook 61 of the second clamping bar 6 and the clamping unit 8 after the first end of the first clamping bar 5 is connected with the handle clamping portion.

In the embodiment of the present invention, the turning directions of the opening and closing operations of the rotary core 41 are opposite, the turning direction of the opening operation is clockwise, the closing operation is counterclockwise, in order to meet the different turning direction requirements of the opening and closing operations of the rotary core 41, the first clamping bar 5 of the present invention can rotate relative to the handle clamping part, and due to the limiting function of the pivot point 9, the second clamping bar 6 rotates along with the first clamping bar 5, as in the assembly structure shown in fig. 1, the second clamping bar 6 drives the movable disk 2 to rotate clockwise, so as to realize the opening operation of the rotary core 41.

When the rotating core 41 needs to be closed, the first clamping rod 5 rotates 180 degrees relative to the handle clamping part, and at the moment, the second clamping rod 6 synchronously rotates to the assembling position shown in fig. 2, so that when the second clamping rod 6 is hooked on the clamping unit 8 and can clamp and rotate the handle to perform closing operation, the movable disc 2 is driven to rotate along the anticlockwise direction, and closing operation of the rotating core 41 is realized.

In another embodiment of the present invention, the first clamping bar 5 comprises a first bar section and a second bar section which are butted by a rotary joint, wherein the non-butted end of the first bar section is a first end, the non-butted end of the second bar section is a second end, and the pivot point 9 is arranged on the second bar section; the first rod segment and the handle clamping part can rotate relative to the second rod segment through a rotating structure, so that the second clamping rod 6 can be driven to change the driving rotation direction shown in the previous embodiment.

In the embodiment of the invention, the telescopic member 7 is arranged between the first clamping rod 5 and the second clamping rod 6, two ends of the telescopic member 7 are respectively connected with the first clamping rod 5 and the second frame rod, and the telescopic member 7 can limit the opening and closing operation range of the clamping and rotating handle.

In particular, the type of telescopic member 7 includes, but is not limited to, a telescopic spring, a telescopic tie, and the like.

According to a second aspect of the present invention, there is also provided a cut-off valve provided with the cut-off valve auxiliary opening and closing device shown in the foregoing embodiments.

It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. An auxiliary opening/closing device for a shutoff valve, comprising:

a clamping and rotating handle, which comprises a first clamping rod and a second clamping rod which form a clamp shape and are pivoted and matched, and is used for driving the movable disc to rotate relative to the fixed disc, wherein,

a clamping hook capable of being hooked with any one clamping unit is formed at the first end of the second clamping rod, the second end is a second handle end,

the fixed disc is of a disc structure, and a first accommodating port sleeved with the valve body is formed in the middle of the fixed disc;

the movable disc is of a disc structure, a second accommodating opening for accommodating and sleeving the fixed disc is formed in the middle of the movable disc, and the movable disc and the fixed disc axially rotate through a bearing structure.

2. The auxiliary opening/closing device for a shut-off valve as claimed in claim 1, wherein said fixed plate has a handle holding portion formed along an axial extension thereof; the first end of the first clamping rod is perpendicular to the axial direction and is connected with the handle clamping part.

3. The auxiliary shut off valve opening and closing device of claim 2, wherein the first clamping bar is rotatable relative to the handle catch.

4. The auxiliary shut-off valve opening and closing device according to claim 1 or 2, wherein the first clamping bar further comprises a first bar section and a second bar section which are butted by a rotary joint, the non-butted end of the first bar section is the first end, the non-butted end of the second bar section is the second end, and a pivot point is provided at the second bar section.

5. The auxiliary shut-off valve opening and closing device according to claim 1, wherein an expansion member is provided between the first clamping bar and the second clamping bar, and both ends of the expansion member are connected to the first clamping bar and the second clamping bar, respectively.

6. The auxiliary opening/closing device for a shut valve as defined in claim 1, wherein said catching unit includes a catching block formed to extend outward in a radial direction of said movable plate, and a plurality of said catching blocks are provided at intervals.

7. The auxiliary opening/closing device for a stop valve according to claim 1, wherein the catching unit includes catching grooves formed concavely in an outer periphery of the movable plate, and a plurality of the catching grooves are provided at intervals.

8. The auxiliary opening/closing device as claimed in claim 1, wherein the rotary core of the shut-off valve is of a hexagonal socket structure, and an end of the torsion member fixed to the rotary core is formed with a matching hexagonal socket hole.

9. A cut-off valve characterized in that the cut-off valve has the cut-off valve auxiliary opening and closing device as claimed in any one of claims 1 to 8.