CN212839546U - Commercial central air conditioning large capacity cross valve - Google Patents
Commercial central air conditioning large capacity cross valve Download PDFInfo
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- CN212839546U CN212839546U CN202021762476.6U CN202021762476U CN212839546U CN 212839546 U CN212839546 U CN 212839546U CN 202021762476 U CN202021762476 U CN 202021762476U CN 212839546 U CN212839546 U CN 212839546U
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Abstract
A commercial central air conditioning large capacity cross valve, including motor, shaft coupling, valve rod mechanism I, valve body II, the motor is established the top of shaft coupling and with shaft coupling drive connection, valve rod mechanism I sets up the below at the shaft coupling, the below of valve rod mechanism I is equipped with valve body II, valve rod mechanism I includes valve rod endotheca, valve rod overcoat, valve rod axle, valve rod supporting cylinder and bearing, valve body II includes valve body seat lid, upper flange, cock, a plurality of bolts, packing ring, four takeovers, cock supporting shaft, lower flange, valve barrel, the utility model discloses a motor drive cross valve elevating mechanism realizes the switching-over, and electric cross valve no longer adopts the pneumatic bootstrap system of pilot operated solenoid valve to control, and the piston motion mode is changed into rotary motion along the valve body removal, avoids the dead phenomenon of piston card, and the length of valve body has reduced nearly half, greatly reducing the volume and weight of the four-way valve.
Description
Technical Field
The utility model relates to a change the traditional switching-over mode of guide's solenoid valve control of central air conditioning large capacity cross valve, concretely relates to commercial central air conditioning large capacity cross valve.
Background
The high-capacity four-way valve is mainly applied to large-scale commercial air conditioners and central air conditioning units, and leads the change of high-pressure and low-pressure gas at two ends of a valve body to push a piston through the on-off conversion of an electromagnetic coil so as to change the direction of a piston flow port, thereby realizing the change of the flow direction of a refrigerant. The high-capacity four-way valve body of the traditional pilot solenoid valve control reversing mode is large in size, complex in processing technology and troublesome in storage, transportation, installation, maintenance and operation debugging processes, in addition, the piston is easily blocked due to the unique piston motion mode, the maintenance rate is greatly increased in the use process, the use cost is greatly increased, the normal operation of an air conditioner is influenced, and the production life is greatly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a commercial central air conditioning large capacity cross valve compares with traditional guide's solenoid valve control switching-over mode, and electric lift formula valve rod mechanism control switching-over mode is compared, system simple structure, the reliable operation.
The utility model discloses a following technical scheme realizes: a high-capacity four-way valve of a commercial central air conditioner comprises a motor, a coupler, a valve rod mechanism I and a valve body II, wherein the motor is arranged above the coupler and is in driving connection with the coupler;
the valve body II comprises a valve body seat cover, an upper flange, a cock, a plurality of bolts, a gasket, four connecting pipes, a cock supporting shaft, a lower flange and a valve barrel body, wherein the valve rod supporting barrel is connected through a base end cover arranged on the upper flange and fixed through high-strength bolts, the cock is embedded into the valve barrel body and rotates up and down in the valve barrel body, four barrel pipe connectors are uniformly distributed on the periphery of the valve barrel body, the connecting pipes are installed in the barrel pipe connectors and are multiple, the bolts are arranged on the upper end face of the valve barrel body and are matched with bolt holes formed in the upper flange, the upper flange and the base are sequentially arranged above the cock, the lower flange is arranged below the valve barrel body, and the cock supporting shaft is vertically arranged on the lower flange.
Further optimizing, the shaft coupling is connected to valve rod axle one end, and the valve rod endotheca is connected to the other end.
Further optimize, be equipped with spherical cotter way on the valve rod endotheca, be equipped with pinhole and U type groove on the valve rod overcoat, the round pin open slot is established to valve rod supporting barrel inner wall, the pinhole spherical cotter way round pin open slot uses mutually supporting.
Further optimization, the ball pin slides among the mutually matched pin hole, the spherical pin groove and the pin open groove, so that the constraint connection between every two parts of the valve rod inner sleeve, the valve rod outer sleeve and the valve rod supporting cylinder is realized.
Further preferably, the valve rod outer sleeve is of a cylindrical structure with a thick upper part and a thin lower part, and a pin shaft hole is formed in the thin part.
Further optimize, U type groove fixed orifices have been seted up on the valve rod support section of thick bamboo, U type groove round pin is installed to U type groove fixed orifices to direction, location when realizing that the valve rod overcoat is rotatory, goes up and down, the one end of U type groove round pin is equipped with U type groove round pin mounting flange.
And further optimizing, the upper flange and the upper end face of the valve cylinder body, and the lower flange and the lower end face of the valve cylinder body are sealed by sealing rings.
Further preferably, a copper bush is arranged in the valve cylinder, and hard sealing is realized between the cock and the valve cylinder through the copper bush.
Further preferably, the cock is I-shaped and comprises an upper circular plug surface, a lower circular plug surface and a cock conical surface, the cock conical surface is arranged on the upper circular plug surface and the lower circular plug surface, a limiting column is arranged at the top end of the cock, a pin shaft hole is formed in the limiting column, and a refrigerant flow channel for refrigerant circulation is arranged at the position, close to the circular plug surface, of the lower portion of the cock conical surface.
Further optimize, still be equipped with the seal groove on the valve barrel up end, the seal groove uses with the sealing washer cooperation to realize the sealed between cock and the upper flange.
The beneficial effects of the utility model reside in that:
(1) the lifting valve rod mechanism is driven by the motor, the plug cock is driven by the valve rod mechanism to lift a certain height and rotate 90 degrees, and the plug cock is driven by the valve rod mechanism in the reverse direction to descend to the initial position to complete circuit switching;
(2) the valve rod lifting mechanism adopts a lead screw transmission mode, the mechanism moves to have a guide structure, positioning is carried out through a pin and a pin groove, transmission is flexible, and positioning is accurate and reliable. The mechanism is easy to realize automatic control, is suitable for valves with different calibers and pressure levels, and has wider application range;
(3) the cock adopts the conical surface structure to seal with the valve body cooperation, guarantees the reliable lift of cock on the one hand, and on the other hand guarantees the sealed of cock and valve body. The plug cock is connected with the lifting type valve rod mechanism, lifted to a set height by the lifting type valve rod mechanism, rotated by 90 degrees together with the valve rod mechanism, and then lowered to an initial position together with the valve rod mechanism to complete reversing, pressure is applied to the plug cock through the valve rod, and the sealing performance of the plug cock is ensured by the sealing of the conical surface of the plug cock;
the utility model discloses a motor direct drive promotes formula valve rod mechanism, through promoting formula valve rod mechanism's lift, the switching-over of rotatory realization cross valve, electronic cross valve system simple structure has obviously reduced the volume and the weight of cross valve, does not have other annexs such as branch pipe, and the fault rate is low, and reliable operation all brings very big convenience for machining, warehousing and transportation, installation, maintenance and operation debugging.
Drawings
FIG. 1 is a schematic view of the structure of an electric four-way valve for a commercial central air conditioner;
FIG. 2 is an exploded view of the valve stem mechanism I assembly;
FIG. 3 is an exploded view of the assembly of a four-way valve body II;
FIG. 4 is a schematic structural view of an inner sleeve of the valve stem;
FIG. 5 is a schematic view of the structure of the valve stem housing;
FIG. 6 is a schematic view of the valve stem support cartridge;
FIG. 7 is a schematic structural view of a U-shaped slot pin;
FIG. 8 is a schematic view of the faucet;
FIG. 9 is a schematic structural view of the valve cartridge;
FIG. 10 is a schematic structural view of a barrel copper bush;
reference numerals: 1. the valve comprises a motor, 2, a coupler, 3, a valve rod inner sleeve, 301, a spherical pin groove, 4, a valve rod outer sleeve, 401, a pin hole, 402, a U-shaped groove, 21, a shaft pin hole, 5, a valve rod shaft, 6, a valve rod supporting barrel, 601, a U-shaped groove fixing hole, 602, a U-shaped groove pin, 603, a pin open groove, 7, a bearing, 8, a ball pin, 9, a valve body seat cover, 10, an upper flange, 11, a cock, 12, a bolt, 13, a gasket, 14, a connecting pipe, 15, a cock supporting shaft, 16, a lower flange, 17, a valve barrel, 18, a sealing groove, 19, a cock conical surface, 20, a limiting column, 21, a pin shaft hole, 22, a refrigerant flow channel, 23, a sealing ring, 24, a supporting barrel base flange and.
Detailed Description
The technical solution of the present invention will be further explained by the following specific embodiments with reference to the accompanying drawings.
In order to make the objects, technical solutions and innovative points of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
A high-capacity four-way valve of a commercial central air conditioner comprises a motor 1, a coupler 2, a valve rod mechanism I and a valve body II, wherein the motor 1 is arranged above the coupler 2 and is in driving connection with the coupler 2, the valve rod mechanism I is arranged below the coupler 2, the valve body II is arranged below the valve rod mechanism I, the valve rod mechanism I comprises a valve rod inner sleeve 3, a valve rod outer sleeve 4, a valve rod shaft 5, a valve rod supporting cylinder 6, a bearing 7 and a ball head pin 8, an inner cavity of the valve rod inner sleeve 3 is provided with internal threads, the valve rod shaft 5 is connected through the internal threads, the lower half part of the valve rod inner sleeve 3 is provided with external threads, the valve rod outer sleeve 4 is connected through the external threads, the valve rod inner sleeve 3 is further provided with a spherical pin groove 301, the valve rod outer sleeve 4 is of a cylindrical structure with a larger part and, a thicker part of the valve rod outer sleeve 4 is provided with a pin hole 401 and a U-shaped groove 402, the pin hole 401 is matched with the spherical pin groove 301 for use, one end of a valve rod shaft 5 is connected with the coupler 2, the other end of the valve rod shaft is connected with the valve rod inner sleeve 3, the valve rod supporting cylinder 6 is arranged below the valve rod outer sleeve 4, the bottom end of the valve rod supporting cylinder 6 is provided with a supporting cylinder base flange 24, the valve rod supporting cylinder 6 is provided with a U-shaped groove fixing hole 601, a U-shaped groove pin 602 is arranged in the U-shaped groove fixing hole 601 to realize the connection between the valve rod supporting cylinder 6 and the valve rod outer sleeve 4, one end of the U-shaped groove pin 602 is provided with a U-shaped groove pin fixing flange, the inner cavity of the valve rod supporting cylinder 6 is provided with a pin opening groove 603, the pin opening groove 603 is matched with the pin hole 401 of the valve rod outer sleeve 4 for use, the upper part of the valve rod mechanism I is, so as to realize the connection between the valve rod inner sleeve 3, the valve rod outer sleeve 4 and the valve rod supporting cylinder 6 in the lifting and rotating processes of the valve rod mechanism.
The bearing 7 is arranged on the valve stem inner sleeve 3 and on the valve stem shaft 5.
The valve body II comprises a valve body seat cover 9, an upper flange 10, a cock 11, a plurality of bolts 12, four connecting pipes 14, a cock supporting shaft 15, a lower flange 16 and a valve cylinder 17, wherein the bolts 12 are matched with bolt holes arranged on the upper flange 10 for use, the cock 11 is I-shaped and comprises an upper circular plug surface, a lower circular plug surface and a cock conical surface 19 arranged on the upper circular plug surface and the lower circular plug surface, a limiting column 20 is arranged at the top end of the cock 11, a pin shaft hole 21 is formed in the limiting column 20, a refrigerant flow channel 22 for refrigerant circulation is arranged at the position, close to the lower circular plug surface, of the cock conical surface 19, the cock 11 is embedded into the valve cylinder 17 and rotates up and down in the valve cylinder 17, four cylinder pipe connectors are uniformly distributed on the periphery of the valve cylinder 17, the connecting pipes 14 are arranged in the cylinder pipe connectors, the bolts 12 are arranged on the upper end surface, the top of cock 11 is equipped with in proper order go up flange 10 with valve body seat lid 9, lower flange 16 sets up the below at valve barrel 17, cock back shaft 15 sets up perpendicularly on lower flange 16, goes up between flange 10 and the 11 up end of cock, all seals through the sealing washer between lower flange 16 and the 11 lower terminal surface of cock, still be equipped with seal groove 18 on the valve barrel 17 up end, seal groove 18 uses with the sealing washer cooperation to realize the sealed between valve barrel 17 and the last flange 10, set up copper bush 25 in the valve barrel 17, realize the hard seal between cock 11 and the valve barrel 17.
Further optimize, valve rod support section of thick bamboo 6 is connected through the valve body seat lid 9 that sets up on the flange 10 on the valve body to fix through high strength bolt, in order to realize being connected of valve rod mechanism I and valve body II.
The utility model discloses in, the switching of refrigerant return circuit is realized through the lift and rotation of valve rod hoist mechanism drive cock 11 to the electronic cross valve, wherein, lift formula valve rod mechanism I under the drive of motor 1, cock 11 promotes certain height under the drive of valve rod mechanism I, rotates 90, and cock 11 descends to the initial position through the back drive of valve rod mechanism I again, accomplishes the return circuit and switches; the valve rod lifting mechanism I adopts a lead screw transmission mode, a guide structure is arranged in the mechanism motion, the ball pin 8 slides among the spherical pin groove 301, the pin hole 401 and the pin opening groove 603, the connection between two parts of the valve rod inner sleeve 3, the valve rod outer sleeve 4 and the valve rod supporting cylinder 6 is realized, the stroke positioning is carried out through the U-shaped groove pin 602 and the U-shaped groove fixing hole 601, the transmission is flexible, the positioning is accurate and reliable, the mechanism is easy to realize automatic control, and the mechanism is suitable for valves with different calibers and pressure levels, and has a wide application range.
In addition, cock 11 adopts the conical surface structure to seal with the valve body cooperation, guarantees the reliable lift of cock 11 on the one hand, and on the other hand guarantees the sealed of cock 11 and valve body II, and cock 11 is connected with lift formula valve rod mechanism, and cock 11 is promoted by lift formula valve rod mechanism I to set for the height, rotates 90 together with valve rod mechanism, descends to initial position again together with valve rod mechanism I and accomplishes the switching-over, exerts pressure to the cock through the valve rod, leans on the sealed sealing performance who guarantees the cock valve of cock conical surface.
The working process is as follows: the four connecting pipes are respectively marked as a connecting pipe A, a connecting pipe B, a connecting pipe C and a connecting pipe D, the cock 11 is set to an initial position, namely a connecting pipe A and a connecting pipe B passage and a connecting pipe C and a connecting pipe D passage, a power supply is started, the motor 1 rotates clockwise to drive the valve rod shaft 5 to rotate and rise, the valve rod inner sleeve 3 rotates and rises anticlockwise under the screw thread transmission, because one end of the ball head pin 8 is positioned in the spherical pin groove 301 of the valve rod inner sleeve 3 at the initial time, the other end of the ball head pin is positioned in the pin hole 401 of the valve rod outer sleeve 4, the valve rod inner sleeve and the valve rod outer sleeve are connected and restrained through the cooperation of the spherical pin groove 301 and the pin hole 401, the cock 11 rotates and rises anticlockwise together, the valve rod outer sleeve 4 drives the cock 11 to rise through the pin shaft matched with the pin hole 21, at the moment, the U-shaped groove pin 602 is positioned at the highest, the U-groove pin 602 thus moves relatively downward; when the U-shaped groove pin 602 slides to the bottom groove of the U-shaped groove 402 from the point E and the position is marked as F, because the U-shaped groove pin at the position F is separated from the limit of the U-shaped groove at the point E, the valve rod outer sleeve 4 and the valve rod inner sleeve 3 rotate together anticlockwise, the plug 11 is driven by the pin shaft to rotate together anticlockwise but not lift, and the U-shaped groove pin 602 moves along the bottom surface G of the U-shaped groove 402 clockwise; when the U-shaped groove pin 602 slides continuously rightwards relatively, the valve rod outer sleeve 4 drives the cock 11 to rotate 90 degrees anticlockwise just, the U-shaped groove pin 602 just reaches the position H at the right end of the U-shaped groove 402, the valve rod outer sleeve 4 is limited by the side wall of the U-shaped groove at the position H to stop rotating, the ball head pin 8 also directly faces a pin opening groove 603 of the valve rod supporting cylinder 6 matched with the pin hole 401, at the moment, under the thrust action of the contact of the valve rod inner sleeve 3 and the ball head pin 8, the ball head pin 8 is separated from the valve rod inner sleeve 3, one end of the ball head pin 8 enters the pin opening groove 603, the other end is still positioned in the pin hole 401 of the valve rod outer sleeve, at the moment, under the pushing action of the external thread of the valve rod inner sleeve 3 and the guiding action of the ball head pin 8, the valve rod outer sleeve 4 moves downwards relatively; when the U-shaped slot pin 602 reaches the point I, the motor 1 stops rotating, and the cock 11 falls on the cock support shaft 15, so that the switching of the four-way valve pipeline is finally completed, namely the channels of the connecting pipe A and the connecting pipe D, and the channels of the connecting pipe B and the connecting pipe C, so that the switching of the refrigerating and heating pipeline is realized;
taking a connecting pipe A and a connecting pipe D as an initial state, taking a connecting pipe B and a connecting pipe C as initial states, when a motor 1 rotates anticlockwise, a valve rod shaft 5 rotates anticlockwise and descends, a valve rod inner sleeve 3 rotates clockwise and descends under the transmission of internal threads, and simultaneously transmits the internal threads to a valve rod outer sleeve 4, according to the last switching state, one end of a ball pin 8 is positioned in a pin opening groove 603 on the inner cylinder wall of a valve rod supporting cylinder, the other end of the ball pin 8 is positioned in a pin hole 401 of the valve rod outer sleeve 4, the valve rod outer sleeve 4 and the valve rod supporting cylinder 6 are connected and constrained through the matching of a spherical pin groove 301 of the valve rod inner sleeve 3 and a pin hole 401 of the valve rod outer sleeve 4, the ball pin 8 can only ascend along the pin opening groove 603 under the guidance of the pin opening groove 603, at the moment, a U-shaped groove pin 602 is positioned at the I point of the U-shaped groove 402 and, the U-slot pin 602 moves relatively downward; when the U-shaped groove pin 602 slides to the position H relatively, because the U-shaped groove pin at the position H has already disengaged from the restriction of the point I to the U groove, the valve rod outer sleeve 4 is about to rotate clockwise, apply thrust to the ball stud 8 contacting with it, because of receiving the thrust, the ball stud 8 disengages the pin open slot 603, one end enters the pin groove 301 of the valve rod inner sleeve 3, another end is still in the pinhole 401, at this moment, the valve rod outer sleeve 4 and the valve rod inner sleeve 3 rotate clockwise together under the coupling restriction of the pin, the U-shaped groove pin 602 moves counterclockwise relatively along the bottom surface G of the U-shaped groove 402; when the U-shaped groove pin 602 slides relatively to the point F, the valve rod outer sleeve 4 drives the cock 11 to rotate 90 degrees clockwise, when the U-shaped groove pin 602 reaches the side wall on the left side of the U-shaped groove, the rotation is stopped under the limitation of the side wall, under the transmission of external threads, the valve rod outer sleeve 4 and the valve rod inner sleeve 3 move downwards together, meanwhile, the cock 11 is driven to move downwards through the pin shaft, the U-shaped groove pin 602 moves upwards relatively, when the U-shaped groove pin 602 reaches the point E of the U-shaped groove 402, the motor 1 stops rotating, the cock 11 falls into the cock supporting shaft 15, and therefore switching of the four-way valve pipeline is finally completed, namely, a connecting pipe A and a connecting pipe B channel, a connecting pipe C and a connecting pipe D.
It is further noted that, 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 necessarily 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, article, 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, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description 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.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-capacity four-way valve of a commercial central air conditioner is characterized by comprising a motor (1), a coupler (2), a valve rod mechanism I and a valve body II, wherein the motor (1) is arranged above the coupler (2) and is in driving connection with the coupler (2), the valve rod mechanism I is arranged below the coupler (2), the valve body II is arranged below the valve rod mechanism I, the valve rod mechanism I comprises a valve rod inner sleeve (3), a valve rod outer sleeve (4), a valve rod shaft (5), a valve rod supporting cylinder (6), a bearing (7) and a ball head pin (8), inner threads are arranged in the inner cavity of the valve rod inner sleeve (3), the valve rod shaft (5) is connected through the inner threads, outer threads are arranged on the lower half part of the valve rod inner sleeve (3), the valve rod outer sleeve (4) is connected through the outer threads, and inner threads are also arranged, the valve rod supporting cylinder (6) is arranged below the valve rod outer sleeve (4), a supporting cylinder base flange (24) is arranged at the bottom end of the valve rod supporting cylinder (6), and the bearing (7) is arranged on the valve rod inner sleeve (3) and on the valve rod shaft (5);
the valve body II comprises a valve body seat cover (9), an upper flange (10), a cock (11), a plurality of bolts (12), a gasket (13), four connecting pipes (14), a cock supporting shaft (15), a lower flange (16) and a valve cylinder body (17), wherein the valve rod supporting cylinder (6) is connected through a base end cover arranged on the upper flange (10) and is fixed through high-strength bolts, the cock (11) is embedded into the valve cylinder body (17) and rotates up and down in the valve cylinder body (17), four cylinder pipe joints are uniformly distributed on the periphery of the valve cylinder body (17), the connecting pipes (14) are arranged in the cylinder pipe joints, the bolts (12) are arranged on the upper end surface of the valve cylinder body, the bolts (12) are matched with bolt holes formed in the upper flange (10) for use, the upper flange (10) and the valve body seat cover (9) are sequentially arranged above the cock (11), the lower flange (16) is arranged below the valve cylinder body (17), and the cock supporting shaft (15) is vertically arranged on the lower flange (16).
2. A commercial high capacity four-way valve for central air conditioners according to claim 1, wherein the valve rod shaft (5) is connected to the coupling (2) at one end and to the valve rod inner sleeve (3) at the other end.
3. The high capacity four-way valve for commercial central air conditioners according to claim 1, wherein the inner valve rod sleeve (3) is provided with a spherical pin groove (301), the outer valve rod sleeve (4) is provided with a pin hole (401) and a U-shaped groove (402), the inner wall of the valve rod support cylinder (6) is provided with a pin opening groove (603), and the pin hole (401), the spherical pin groove (301) and the pin opening groove (603) are used in cooperation with each other.
4. The high capacity four-way valve for commercial central air conditioners according to claim 1, wherein the ball head pin (8) slides between the pin hole (401), the ball pin groove (301) and the pin open groove (603) which are matched with each other, so as to realize the binding connection between the valve rod inner sleeve (3), the valve rod outer sleeve (4) and the valve rod support cylinder (6).
5. A high capacity four-way valve for commercial central air conditioners as claimed in claim 1, wherein the valve rod housing (4) is of a cylindrical structure with a thick upper part and a thin lower part, and a pin shaft hole (21) is formed on the thin part.
6. A high capacity four-way valve for a commercial central air conditioner according to claim 1, wherein the valve stem supporting cylinder (6) is provided with a U-shaped groove fixing hole (601), a U-shaped groove pin (602) is installed in the U-shaped groove fixing hole (601) to realize guiding and positioning of the valve stem housing (4) during rotation and lifting, and one end of the U-shaped groove pin (602) is provided with a U-shaped groove pin fixing flange.
7. A high capacity four-way valve for a commercial central air conditioner according to claim 1, wherein the upper flange (10) and the upper end surface of the valve cylinder (17), and the lower flange (16) and the lower end surface of the valve cylinder (17) are sealed by sealing rings (23).
8. A high capacity four-way valve for commercial central air conditioner according to claim 1, wherein a copper bush (25) is provided in the valve cylinder (17), and the hard sealing between the cock (11) and the valve cylinder (17) is achieved by the copper bush (25).
9. The high-capacity four-way valve for the commercial central air conditioner as claimed in claim 6, wherein the cock (11) is I-shaped and comprises an upper circular plug surface and a lower circular plug surface and a cock conical surface (19) arranged on the upper circular plug surface and the lower circular plug surface, the top end of the cock (11) is provided with a limiting column (20), the limiting column (20) is provided with a pin shaft hole (21), and the lower part of the cock conical surface (19) close to the lower circular plug surface is provided with a refrigerant flow channel (22) for the circulation of a refrigerant.
10. A commercial high capacity four-way valve for central air conditioner as claimed in claim 1, wherein the upper end of the valve cylinder (17) is further provided with a sealing groove (18), and the sealing groove (18) is used in cooperation with a sealing ring (23) to realize the sealing between the valve cylinder (17) and the upper flange (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021762476.6U CN212839546U (en) | 2020-08-21 | 2020-08-21 | Commercial central air conditioning large capacity cross valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021762476.6U CN212839546U (en) | 2020-08-21 | 2020-08-21 | Commercial central air conditioning large capacity cross valve |
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| CN212839546U true CN212839546U (en) | 2021-03-30 |
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| CN202021762476.6U Active CN212839546U (en) | 2020-08-21 | 2020-08-21 | Commercial central air conditioning large capacity cross valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108428A (en) * | 2021-04-13 | 2021-07-13 | 广州市水电设备安装有限公司 | Multi-split central air conditioning system and control method thereof |
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2020
- 2020-08-21 CN CN202021762476.6U patent/CN212839546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108428A (en) * | 2021-04-13 | 2021-07-13 | 广州市水电设备安装有限公司 | Multi-split central air conditioning system and control method thereof |
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