CN109899594B - Pilot valve fixing structure and four-way reversing valve - Google Patents
Pilot valve fixing structure and four-way reversing valve Download PDFInfo
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- CN109899594B CN109899594B CN201711308192.2A CN201711308192A CN109899594B CN 109899594 B CN109899594 B CN 109899594B CN 201711308192 A CN201711308192 A CN 201711308192A CN 109899594 B CN109899594 B CN 109899594B
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Abstract
The invention discloses a pilot valve fixing structure and a four-way reversing valve, and belongs to the field of valves. When the structure is whole when the vibration takes place because of the atress in the course of the work, support, prop up lid and pilot valve synchronous oscillation, the three has unanimous resonant frequency, effectively avoids guaranteeing the holistic stability of valve structure because of the low cracked result of capillary that leads to of resonant frequency between support and propping lid, and then guarantees the job stabilization nature of valve structure, prolongs the life of valve structure.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a pilot valve fixing structure, and further relates to a four-way reversing valve.
Background
The four-way reversing valve mainly comprises a main valve, a pilot valve and an electromagnetic coil, and when the four-way reversing valve works, the reversing of the main valve is realized through the combined action of the electromagnetic coil and the pilot valve so as to realize the purpose of switching the flowing direction of fluid, further the heat exchange system can be switched between two working states, and the working purpose of one machine with dual purposes of refrigerating in summer and heating in winter is realized.
In the prior art, the pilot valve is generally fixedly arranged on the main valve. Chinese utility model patent No. CN 204553914U discloses an electromagnetic four-way directional valve, in which a drive valve is mounted on a valve body of a main valve through a fixing device. The fixing device comprises a support and a supporting cover, wherein four buckling lugs are arranged on the support, and four clamping grooves which correspond to the buckling lugs one to one are arranged on the supporting cover. During installation, the support is welded on the main valve, then the pilot valve is assembled on the support, the support cover is connected to the support through the matching of the buckling lugs and the clamping grooves, and the pilot valve is fixed through the matching of the support cover and the support. In the structure, in order to realize the connection between the support cover and the bracket through the matching of the buckling lug and the clamping groove, the length of the clamping groove is greater than the contact length of the buckling lug and the bracket. So, when the whole atress of four-way reversing valve takes place the vibration, the branch lid can take place to remove for the support, and the vibration of branch lid and support is asynchronous, and resonant frequency reduces, easily leads to the capillary fracture, influences the holistic performance of valve.
Disclosure of Invention
In order to solve the defects and shortcomings of the prior art, the invention provides a pilot valve fixing structure capable of effectively improving the resonant frequency of each component.
In order to achieve the technical purpose, the pilot valve fixing structure provided by the invention comprises a support and a supporting cover which are mutually matched to fix the pilot valve, wherein the support comprises a connecting plate, the supporting cover comprises a cover plate, the support further comprises a first supporting plate and a second supporting plate which are respectively arranged on two opposite sides of the connecting plate and are arranged in parallel, the supporting cover further comprises a sealing plate formed by bending one side of the cover plate, the cover plate is fixedly connected to the first supporting plate, the sealing plate is fixedly connected to the second supporting plate, and one end of the pilot valve is arranged between the support and the supporting cover to realize fixation.
Preferably, a notch for the pilot valve to be installed is formed in the first supporting plate, a supporting column is respectively arranged on each of two sides of the notch of the first supporting plate, a fixing groove for the supporting column to be inserted is formed in one side, far away from the sealing plate, of the cover plate, and the cover plate is fixedly connected to the first supporting plate through the matching of the fixing groove and the supporting column.
Preferably, the fixed slot is including inserting the trench and the chucking trench of intercommunication, and the width that inserts the trench is greater than the width of chucking trench, and the pillar is equipped with the draw-in groove that supplies the apron card to go into at the end of keeping away from the connecting plate, and the pillar is equipped with the position and the chucking trench cooperation of draw-in groove.
Preferably, the fixed slot is T-shaped, and the clamping slot position is far away from the sealing plate than the inserting slot position.
Preferably, the second support plate is provided with a positioning bayonet for limiting the pilot valve, the two sides of the positioning bayonet of the second support plate are respectively provided with a support leg, the end part of the sealing plate far away from the cover plate is provided with lugs in one-to-one correspondence with the support legs, and the lugs are fixedly connected with the support legs to realize that the sealing plate is fixedly connected with the second support plate.
Preferably, the second support plate is provided with a positioning bayonet for limiting the pilot valve, the end part of the sealing plate far away from the cover plate is provided with a lug, and the lug is fixedly connected with the second support plate to realize that the sealing plate is fixedly connected with the second support plate.
Preferably, the lug is fixedly connected to the second support plate by welding.
Preferably, a bending plate for transition is arranged between the lug and the sealing plate, and the lug is offset to the second support plate relative to the sealing plate.
Preferably, the connecting plate and the cover plate are both arc-shaped, the first support plate and the second support plate are respectively arranged at the two axial ends of the connecting plate, and an included angle alpha is formed between the sealing plate and the cover plate, wherein the angle alpha is more than or equal to 75 degrees and less than or equal to 90 degrees.
After the technical scheme is adopted, the pilot valve fixing structure provided by the invention has the following advantages:
1. the pilot valve fixing structure provided by the invention improves the existing structure for installing the pilot valve, the support is provided with two support plates, and the support cover is provided with a cover plate and a closing plate. The cover plate is fixedly connected to the first support plate, the sealing plate is fixedly connected to the second support plate, and one end of the pilot valve is arranged between the support and the support cover to achieve fixed installation. After the installation is finished, the support, the supporting cover and the pilot valve are all completely fixed and cannot move relative to each other. When the structure is whole when the vibration takes place because of the atress in the course of the work, support, prop up lid and pilot valve synchronous oscillation, the three has unanimous resonant frequency, effectively avoids guaranteeing the holistic stability of valve structure because of the low cracked result of capillary that leads to of resonant frequency between support and propping lid, and then guarantees the job stabilization nature of valve structure, prolongs the life of valve structure.
2. The cover plate is provided with a fixed groove comprising an inserting groove and a clamping groove, and the supporting column is provided with a clamping groove. During the installation, insert the fixed slot with the end of pillar from inserting trench department earlier, then the translation apron makes the pillar be equipped with the position card income chucking trench of draw-in groove, simultaneously, the apron is located the edge card income draw-in groove of chucking trench width direction both sides and is gone into in the draw-in groove. Fixed connection is realized through the cooperation of fixed slot and draw-in groove between apron and the first support, and connection structure between the two is simple, is convenient for improve the packaging efficiency between support and the branch lid under the prerequisite of guaranteeing that joint strength accords with operation requirement.
3. Set up the lug on the shrouding, realize fixed connection through welding mode between lug and the stabilizer blade or between lug and the second extension board to realize the fixed connection between shrouding and second extension board, fixed mode between shrouding and the second extension board is simple and fixed intensity is high, can be fine satisfy operation requirement. After the welding is finished, the tail end of the support column cannot move in the fixing groove, and the fixed connection between the cover plate and the first support plate is further guaranteed.
4. Set up the board of bending that is used for the transition between lug and the shrouding, the lug is for the shrouding to the skew of second extension board, and the lug sets up with the shrouding staggeredly, avoids causing the interference when the installation pilot valve, provides sufficient installation space for the pilot valve.
5. The connecting plate sets to the arc, makes the outer wall laminating of connecting plate and main valve, and the area of contact between increase support and the main valve is favorable to improving the stability of being connected between support and the main valve, and then is favorable to improving the installation stability of pilot valve.
The apron sets to the arc, sets up contained angle alpha between shrouding and the apron, and 75 alpha is less than or equal to 90 between being more than or equal to, so, makes apron and shrouding all have elastic pretightning force when the installation, can effectively improve the stability of being connected between a lid and the support, and then guarantees that the joint strength between a lid and the support accords with operation requirement.
The invention also provides a four-way reversing valve which comprises a main valve, a pilot valve and an electromagnetic coil, wherein the pilot valve is matched with the electromagnetic coil to switch the flowing direction of fluid in the main valve, and the pilot valve is fixedly arranged on the outer wall of the main valve through the recorded pilot valve fixing structure.
In the four-way reversing valve provided by the invention, the pilot valve is fixed on the main valve by adopting the fixing structure, and after the fixing is finished, the fixing structure and the pilot valve are completely fixed and cannot move mutually. When the structure is whole when the vibration takes place because of the atress in the course of the work, fixed knot constructs and pilot valve synchronous vibration, has unanimous resonant frequency, avoids leading to the cracked result of capillary because of the resonant frequency between support and the thrust cap is low, is favorable to guaranteeing the holistic stability of valve structure, and then guarantees the job stabilization nature of valve structure, prolongs the life of valve structure.
Drawings
FIG. 1 is a schematic view illustrating a pilot valve fixing structure fixedly connected to a pilot valve according to an embodiment of the present invention;
FIG. 2 is a perspective view of a bracket of a pilot valve fixing structure according to an embodiment of the present invention;
FIG. 3 is a perspective view of a support cap of a pilot valve fixing structure according to an embodiment of the present invention;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is a schematic view of a four-way reversing valve according to an embodiment of the present invention;
FIG. 6 is a perspective view of a support cap in a second pilot valve fixing structure according to an embodiment of the present invention.
In the figure, 1-bracket, 11-first support plate, 12-second support plate, 13-connecting plate, 14-notch, 15-pillar, 16-clamping groove, 17-positioning bayonet, 18-leg, 2-support cover, 21-cover plate, 22-sealing plate, 23-fixing groove, 231-inserting groove, 232-clamping groove, 24-lug, 25-bending plate, 300-pilot valve and 400-main valve.
Detailed Description
The invention is further described with reference to the following figures and specific examples. It is to be understood that the following terms "upper," "lower," "left," "right," "longitudinal," "lateral," "inner," "outer," "vertical," "horizontal," "top," "bottom," and the like are used merely to indicate an orientation or positional relationship relative to one another as illustrated in the drawings, merely to facilitate describing and simplifying the invention, and are not intended to indicate or imply that the device/component so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore are not to be considered limiting of the invention.
Example one
As shown in fig. 1, 2 and 3, a pilot valve fixing structure according to a first embodiment of the present invention includes a bracket 1 and a supporting cover 2, which cooperate with each other to fix a pilot valve 300. The bracket 1 comprises a connecting plate 13, a first support plate 11 and a second support plate 12, wherein the first support plate 11 and the second support plate 12 are respectively arranged on two opposite sides of the connecting plate 13 and are arranged in parallel. The support cover 2 includes a cover plate 21 and a cover plate 22 formed by bending one side of the cover plate. The cover plate 21 is fixedly connected to the first support plate 11, the closing plate 22 is fixedly connected to the second support plate 12, and one end of the pilot valve 300 is arranged between the support 1 and the support cover 2 to realize fixation.
After the installation is completed, the bracket 1, the supporting cover 2 and the pilot valve 300 are all completely fixed and cannot move relative to each other. When the structure is whole when the vibration takes place because of the atress in the course of the work, support, prop up lid and pilot valve synchronous oscillation, the three has unanimous resonant frequency, effectively avoids guaranteeing the holistic stability of valve structure because of the low cracked result of capillary that leads to of resonant frequency between support and propping lid, and then guarantees the job stabilization nature of valve structure, prolongs the life of valve structure.
As shown in fig. 2, the first support plate 11 is provided with a notch 14 for accommodating the pilot valve 300, the first support plate is provided with a support post 15 on each side of the notch, and the top end of the support post is provided with a clamping groove 16 for clamping the cover plate 21. The second support plate 12 is provided with a positioning bayonet 17 for limiting the pilot valve 300, and two sides of the positioning bayonet of the second support plate are respectively provided with a support leg 18.
As shown in fig. 3, the cover plate 21 is provided with fixing grooves 23 into which the posts 15 are inserted on the side away from the cover plate 22, and the cover plate 22 is provided with lugs 24 corresponding to the legs 18 one by one on the end away from the cover plate 21. As shown in fig. 4, the fixing groove 23 includes an insertion groove 231 and a chucking groove 232 which are communicated with each other, and the width of the insertion groove is greater than that of the chucking groove.
The width of the insertion slot 231 is slightly greater than the width of the support post 15 for ease of assembly. In order to improve the connection stability between the cover plate 21 and the first supporting plate 11, the part of the pillar 15 provided with the clamping groove 16 is in transition fit with the clamping groove 232.
In this embodiment, the fixing groove 23 is T-shaped, the clamping groove 232 is far from the sealing plate 22 than the inserting groove 231, the clamping grooves 16 are respectively disposed on two sides of the end of the pillar 15, and the lug 24 is fixed to the leg 18 by welding. To avoid interference of the closure plate 22 with the pilot valve 300, a bent plate 25 for transition is provided between the lug 24 and the closure plate 22, the lug being offset relative to the closure plate towards the second support plate 12. The lugs 24 are offset from the plate 22 to provide sufficient space for the pilot valve to fit.
The connecting plate 13 is arc-shaped, and the first support plate 11 and the second support plate 12 are respectively arranged at two axial ends of the connecting plate. Curved connecting plate 13 and the outer wall laminating of main valve, area of contact between increase support 1 and the main valve is favorable to improving the stability of being connected between support and the main valve, and then is favorable to improving the installation stability of pilot valve.
The cover plate 21 is also set to be arc-shaped, and the arc-shaped cover plate is provided with elastic pretightening force during installation, so that the positioning before fixing is convenient to realize. An included angle alpha is formed between the sealing plate 22 and the cover plate 21, alpha is more than or equal to 75 degrees and less than or equal to 90 degrees, and through the included angle, the sealing plate also has elastic pretightening force during installation, so that the positioning before fixing is convenient to realize. Specifically, α may be set to 75 °, 80 °, 85 °, 90 °, and in the present embodiment, α is preferably set to 85 °.
As shown in fig. 5, the embodiment of the present invention further provides a four-way reversing valve, which includes a main valve 400, a pilot valve 300 and an electromagnetic coil, wherein the pilot valve and the electromagnetic coil cooperate to switch the flow direction of the fluid in the main valve, and the pilot valve 300 is fixed on the outer wall of the main valve 400 through the above-mentioned pilot valve fixing structure.
When the pilot valve is installed, the bracket 1 is fixed on the outer wall of the main valve 400, then one end of the pilot valve 300 is installed on the bracket 1 from the notch 14, and the pilot valve is clamped into the positioning bayonet 17 at the same time. Then the end of the pillar 15 is inserted into the fixing groove 23 from the inserting groove 231, and then the cover plate 21 is moved horizontally, so that the part of the pillar, which is provided with the clamping groove 16, is clamped into the clamping groove 232, and meanwhile, the edges of the cover plate 21, which are positioned at the two sides of the width direction of the clamping groove 231, are clamped into the clamping groove 16. The closing plate 22 is positioned on the outer side of the second support plate 12, the lugs 24 correspond to the legs 18 one by one, and finally the lugs 24 are fixedly connected with the legs 18 in a welding mode, so that the fixed connection between the closing plate 22 and the second support plate 12 and between the cover plate 21 and the first support plate 21 is realized.
After the fixation is completed, the fixed structure and the pilot valve 300 are completely fixed and cannot move relative to each other. When the whole structure vibrates due to stress in the working process, the fixed structure and the pilot valve vibrate synchronously, the fixed structure and the pilot valve have consistent resonance frequency, and the capillary tube can be prevented from being broken due to the low resonance frequency between the support and the support cover.
It will be appreciated that the lug 24 and the foot 18 of the present embodiment may be secured in other ways, such as by screwing or riveting.
It should be understood that the fixing groove 23 in this embodiment may also be formed in an L shape, and in this case, the locking groove 16 only needs to be formed on one side of the pillar 15 in the width direction.
It is understood that the connecting plate 13 of the present embodiment may be fixed to the outer wall of the main valve 400 by using a screw, welding, or the like.
Example two
As shown in fig. 6, the second embodiment of the present invention is different from the first embodiment in that the sealing plate 22 is provided with a larger lug 24 at the end far from the cover plate 21, the lug directly abuts on the second support plate 12, and the lug 24 is fixedly connected with the second support plate 12 by welding, so as to fixedly connect the sealing plate 22 with the second support plate 12.
Other structures of the second embodiment of the present invention are the same as those described in the first embodiment, and thus are not described in detail herein.
It is understood that the present embodiment can also achieve the fixation between the lug 24 and the second plate 12 by means of screw connection, riveting, etc.
Other embodiments of the present invention than the preferred embodiments described above, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, should fall within the scope of the present invention defined in the claims.
Claims (9)
1. A pilot valve fixing structure comprises a support and a supporting cover which are matched with each other to fix a pilot valve, wherein the support comprises a connecting plate, the supporting cover comprises a cover plate, the support further comprises a first supporting plate and a second supporting plate which are arranged on two opposite sides of the connecting plate respectively and arranged in parallel, the supporting cover further comprises a sealing plate formed by bending one side of the cover plate, the cover plate is fixedly connected to the first supporting plate, the sealing plate is fixedly connected to the second supporting plate, and one end of the pilot valve is arranged between the support and the supporting cover to realize fixation;
the end part, far away from the cover plate, of the sealing plate is provided with a lug, the lug is fixedly connected to the second support plate, so that the sealing plate is fixedly connected to the second support plate, a bending plate for transition is arranged between the lug and the sealing plate, and the lug deviates towards the second support plate relative to the sealing plate.
2. The pilot valve fixing structure according to claim 1, wherein the first support plate is provided with a recess for receiving the pilot valve therein, the first support plate is provided with a support post on each of both sides of the recess, the cover plate is provided with a fixing groove for inserting the support post on a side away from the closing plate, and the cover plate is fixedly connected to the first support plate by the fitting of the fixing groove and the support post.
3. The pilot valve fixing structure as claimed in claim 2, wherein the fixing groove comprises an inserting groove and a clamping groove which are communicated with each other, the width of the inserting groove is larger than that of the clamping groove, the end of the supporting column far away from the connecting plate is provided with a clamping groove for clamping the cover plate, and the part of the supporting column provided with the clamping groove is matched with the clamping groove.
4. The pilot valve fixing structure as claimed in claim 3, wherein the fixing groove is T-shaped, and the fastening groove is located farther from the closing plate than the insertion groove.
5. The pilot valve fixing structure according to claim 1, wherein a positioning bayonet for limiting the position of the pilot valve is provided on the second support plate, the second support plate is provided with a support leg on each side of the positioning bayonet, the lugs are provided in one-to-one correspondence with the support legs, and the lugs are fixedly connected to the support legs to fixedly connect the sealing plate to the second support plate.
6. The pilot valve fixing structure according to claim 1, wherein the second support plate is provided with a positioning bayonet for limiting the position of the pilot valve, and the lug is fixedly connected to the second support plate to fixedly connect the closing plate to the second support plate.
7. A pilot valve fixing structure as claimed in claim 5 or 6, wherein the lug is fixedly connected to the second support plate by welding.
8. A pilot valve fixing structure as claimed in any one of claims 1 to 6, wherein the connecting plate and the cover plate are both arc-shaped, the first support plate and the second support plate are respectively provided at two axial ends of the connecting plate, and an included angle α is provided between the closing plate and the cover plate, which is 75 ° or more and 90 ° or less.
9. A four-way reversing valve, comprising a main valve, a pilot valve and an electromagnetic coil, wherein the pilot valve and the electromagnetic coil are matched to switch the flow direction of fluid in the main valve, and the four-way reversing valve is characterized in that the pilot valve is fixedly arranged on the outer wall of the main valve through the pilot valve fixing structure of any one of the claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308192.2A CN109899594B (en) | 2017-12-11 | 2017-12-11 | Pilot valve fixing structure and four-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308192.2A CN109899594B (en) | 2017-12-11 | 2017-12-11 | Pilot valve fixing structure and four-way reversing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109899594A CN109899594A (en) | 2019-06-18 |
| CN109899594B true CN109899594B (en) | 2021-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711308192.2A Active CN109899594B (en) | 2017-12-11 | 2017-12-11 | Pilot valve fixing structure and four-way reversing valve |
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| CN (1) | CN109899594B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963723B (en) * | 2020-07-10 | 2022-12-06 | 盾安环境技术有限公司 | Valve body assembly and air conditioning equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201636376U (en) * | 2009-12-30 | 2010-11-17 | 浙江盾安禾田金属有限公司 | Electromagnetic four-way reversing valve and connection structure of driving valve and support thereof |
| CN204387480U (en) * | 2014-11-25 | 2015-06-10 | 浙江盾安禾田金属有限公司 | Solenoid directional control valve support and solenoid directional control valve thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2703175Y (en) * | 2004-05-14 | 2005-06-01 | 浙江盾安精工集团有限公司 | Square guide valve used for four-way change valve |
| KR200450343Y1 (en) * | 2008-08-12 | 2010-09-24 | 주식회사 에스 씨디 | Mounting structure of refrigerant valve |
| CN202327315U (en) * | 2011-11-18 | 2012-07-11 | 河南源泉电器有限公司 | Connection frame for fixing pilot valve on electromagnetic four-way reversing valve |
| CN204396004U (en) * | 2014-12-05 | 2015-06-17 | 安徽华盛科技控股股份有限公司 | CIT is sliding closes structure Drip rack |
| CN206072514U (en) * | 2016-08-25 | 2017-04-05 | 浙江春晖智能控制股份有限公司 | A kind of four-way electromagnetic reversing valve bracket connection structure |
| CN206054801U (en) * | 2016-09-07 | 2017-03-29 | 中山市港利制冷配件有限公司 | Electromagnetism four-way reversing valve |
| CN207364377U (en) * | 2017-06-01 | 2018-05-15 | 浙江盾安禾田金属有限公司 | A kind of guide valve blocks fixed structure and reversal valve |
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2017
- 2017-12-11 CN CN201711308192.2A patent/CN109899594B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201636376U (en) * | 2009-12-30 | 2010-11-17 | 浙江盾安禾田金属有限公司 | Electromagnetic four-way reversing valve and connection structure of driving valve and support thereof |
| CN204387480U (en) * | 2014-11-25 | 2015-06-10 | 浙江盾安禾田金属有限公司 | Solenoid directional control valve support and solenoid directional control valve thereof |
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| CN109899594A (en) | 2019-06-18 |
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