CN204083366U - Collude step rotary reversing valve for two nine - Google Patents
Collude step rotary reversing valve for two nine Download PDFInfo
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- CN204083366U CN204083366U CN201420552715.3U CN201420552715U CN204083366U CN 204083366 U CN204083366 U CN 204083366U CN 201420552715 U CN201420552715 U CN 201420552715U CN 204083366 U CN204083366 U CN 204083366U
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Abstract
The utility model provides a kind of two nine to collude step rotary reversing valve.Describedly comprise valve body, spool, rotatingshaft and driving mechanism, described valve body is made up of commutate valve body and combustion-supporting air and fume reversing valve body of combustion gas, and combustion gas commutation valve body is provided with A1 fuel gas inlet and A2, A3 gas outlet; Combustion-supporting air and fume reversing valve body are provided with two groups of combustion-supporting airs and smoke entrance, often group has three through holes, described spool is embedded in combustion-supporting air and fume reversing valve body, rotatingshaft is horizontally through valve body, one end is docked with A1 fuel gas inlet, and through combustion gas commutation valve body part in be provided with combustion gas chamber, the other end is connected with driving mechanism, and can under the driving of driving mechanism in valve body rotation realize combustion gas and combustion-supporting air machine flue gas while commutate.The utility model is simple, that high frequency the is safe and reliable fast switching valve of a kind of structure, and can realize stove multistage, multi-operating mode controls automatically, Control for Kiln Temperature is accurately reliable, has wide range of applications.
Description
Technical field
The utility model belongs to a kind of combustion-supporting air (flue gas), Gas multi-way junction road Integral synchronous reversing arrangement; be the critical component of thermal-storage burning device utilizing radiant tube, collude step rotary reversing valve for two nine on the oven of the N2shielded heat-treatment stove of iron and steel, mechanical work, enamel, ceramic industry and the zinc-plated kiln furnace of steel plate.
Background technique
At present, conventional reversing arrangement is combustion-supporting air (flue gas), combustion gas respectively has a four-way change-over valve, such reversing arrangement is difficult to accomplish combustion gas, combustion-supporting air (flue gas) synchronous communicating, air fuel ratio cannot effectively control, and the gas of conventional reversing arrangement cannot ensure simultaneously.Conventional reversing arrangement is all that large-scale unification commutates, and cannot control separately, change trouble.
Summary of the invention
The purpose of this utility model provides a kind of two nine to collude step rotary reversing valve according to the deficiencies in the prior art, this selector valve can realize combustion-supporting air (flue gas), Gas multi-way junction road Integral synchronous commutation, guarantee combustion-supporting air (flue gas), combustion gas synchronous communicating and do not reveal by during reversing arrangement.
The technological scheme that the utility model provides: described a kind of two nine collude step rotary reversing valve comprise valve body, spool, rotatingshaft and driving mechanism, combustion gas interface is provided with in the side of valve body, opposite side is provided with end cover, it is characterized in that: described valve body is made up of commutate valve body and combustion-supporting air and fume reversing valve body of combustion gas, described combustion gas interface is arranged on the side near combustion gas commutation valve body, and in combustion gas interface, be provided with A1 fuel gas inlet; Described seal spool is embedded the inner chamber at combustion-supporting air and fume reversing valve body, in spool, be provided with C1, C2 cavity side by side; Described rotatingshaft is horizontally through valve body, and one end is docked with A1 fuel gas inlet, and the other end is connected with driving mechanism, and can rotate in valve body under the driving of driving mechanism; Combustion gas chamber is provided with in the part of described rotatingshaft through combustion gas commutation valve body, the outer wall of this partial turn axle and combustion gas commutate between valve interior wall by the first refractory seal component sealing, the B1 fuel gas inlet be communicated with combustion gas chamber is offered in the position of insertion end corresponding A 1 fuel gas inlet of rotatingshaft, offer B2, B3 gas outlet in the part in the corresponding combustion gas chamber of rotatingshaft, combustion gas commutation valve body offers towards different A2, A3 gas outlets; Described rotatingshaft crosses C1, C2 cavity of spool through the part of combustion-supporting air and fume reversing valve body, and be fixedly connected with spool, each cavity of spool offers two respectively towards different ports, and the port on two cavitys is not towards identical yet, on combustion-supporting air and fume reversing valve body, the position of corresponding each cavity also offers three towards different ports; When rotatingshaft turns to different commutation station, the commutate gas outlet of valve body different direction of one of them gas outlet on rotatingshaft and combustion gas is communicated with, meanwhile, on combustion-supporting air and fume reversing valve body corresponding each cavity three ports in any two adjacent ports be communicated with the port of two on this cavity.
The utility model is technological scheme preferably: described in be arranged on combustion gas commutation valve body on A2, A3 gas outlet be not arranged on same plane, and shape angle in 90 ° between two gas outlets, arrange B2, B3 gas outlet to be on the rotating shaft arranged side by side along rotatingshaft substantially horizontal, wherein B2 gas outlet and A2 gas outlet are arranged on same longitudinal cross-section, and B3 gas outlet and A3 gas outlet are arranged on same longitudinal cross-section; When driving mechanism drives rotatingshaft to turn to the first working position A, B2 gas outlet and A2 gas outlet are closed, and B3 gas outlet is communicated with A3 gas outlet; When driving mechanism drives rotatingshaft to turn to the second working position B, B2 gas outlet is communicated with A2 gas outlet, and B3 gas outlet and A3 gas outlet are closed;
The utility model is technological scheme preferably: described combustion-supporting air and fume reversing valve body are square valve body, be arranged on three through hole A4 combustion air inlet of combustion-supporting air and fume reversing valve body corresponding spool C1 cavity, top that the outlet of A5 combustion-supporting air and flue gas inlet, A6 smoke outlet are separately positioned on valve body, front and below; Be arranged on three through hole A7 combustion air inlet of combustion-supporting air and fume reversing valve body corresponding spool C2 cavity, top that the outlet of A8 combustion-supporting air and flue gas inlet, A9 smoke outlet are separately positioned on valve body, rear and below; The same longitudinal cross-section of spool C1 cavity offers B4 port, B5 port, the same longitudinal cross-section of spool C2 cavity offers B6 port, B7 port, described B4 port and B5 port, angle between B6 port and B7 port are 90 °, and the port on two cavitys is towards inconsistent; When driving mechanism drives rotatingshaft to turn to the first working position A, B4 port on spool C1 cavity is communicated with A4 combustion air inlet upward, B5 port exports with A5 combustion-supporting air forward and flue gas inlet is communicated with, B6 port on spool C2 cavity exports with A8 combustion-supporting air backwards and flue gas inlet is communicated with, and B7 port is communicated with A9 smoke outlet down; When driving mechanism drives rotatingshaft to turn to the second working position B, B4 port on spool C1 cavity exports with A5 combustion-supporting air forward and flue gas inlet is communicated with, B5 port is communicated with A6 smoke outlet down, B6 port on spool C2 cavity is communicated with A7 combustion air inlet upward, and B7 port exports with A8 combustion-supporting air backwards and flue gas inlet is communicated with.
The utility model is technological scheme preferably: by the second refractory seal component sealing between described spool and combustion-supporting air and fume reversing valve body, intermediate portion and the rotatingshaft of spool weld together.First, second refractory seal assembly described all adopts high-temperature resistant seal ring.
The utility model is technological scheme preferably: described rotatingshaft passes from the central shaft of combustion gas commutation valve body and spool, described driving mechanism is connected with rotatingshaft by driving mechanism connecting base, outside the end cover near combustion-supporting air and fume reversing valve side, be provided with gland, be provided with instruction dials in the position of rotatingshaft and driving mechanism coupling shaft.
The utility model drives the switching of combustion gas and combustion-supporting air (flue gas) by a selector valve rotatingshaft simultaneously, ensure that the security incident of the combustion gas the most easily occurred in heat storage type combustion generation asynchronous with combustion-supporting air can not occur; Rotatingshaft one end is connected with driving mechanism, actuation time short (about 0.5s), long service life.Can realize stove multistage, multi-operating mode controls automatically, Control for Kiln Temperature is accurately reliable; The utility model is that a kind of technological scheme is novel, reasonable, structure is simple, high frequency is safe and reliable fast switching valve, has wide range of applications.
Accompanying drawing explanation
Fig. 1 is assembly structure schematic diagram of the present utility model;
Fig. 1-1 is AA sectional drawing in Fig. 1;
Fig. 1-2 is EE sectional drawing in Fig. 1;
Fig. 1-3 is BB sectional drawings in Fig. 1;
Fig. 1-4 is CC sectional drawings in Fig. 1;
Fig. 1-5 is DD sectional drawings in Fig. 1;
Fig. 2 is valve body structure schematic diagram of the present utility model;
Fig. 2-1 is the M direction view of Fig. 2;
Fig. 2-2 is K direction view of Fig. 2.
In figure: 1-combustion gas commutation valve body, 2-combustion-supporting air and fume reversing valve body, 3-spool, 4-rotatingshaft, 5-combustion gas chamber, the 6-the first refractory seal assembly, 7-driving mechanism, the 8-the second refractory seal assembly, 9-end cover, 10-combustion gas interface, 11-driving mechanism connecting base, 12-position pointer, 13-the first rotary bearing, 14-seal ring, 15-gland, 16-the second rotary bearing, 17-coupling.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.As shown in Figure 1, collude step rotary reversing valve for described a kind of two nine, comprise valve body, spool, rotatingshaft and driving mechanism, combustion gas interface 10 is provided with in the side of valve body, combustion gas interface 10 is connected with valve seal by bolt, end cover is provided with at the opposite side of valve body, end cover 9 is arranged on the side of valve body near driving mechanism, gland 15 is also provided with outside end cover 9, gland 15 is connected by bolt seal with end cover, rotatingshaft passes from the central shaft of valve body, the internal surface of combustion gas interface 10 is withstood in one end, be tightly connected by driving mechanism connecting base 11 and driving mechanism after the other end stretches out gland 15, seal ring 14 and the first rotary bearing 13 is provided with the part of rotatingshaft 4 through gland 15, rotatingshaft 4 can be made to rotate in valve body, be provided with position pointer 12 at rotatingshaft 4 and the position of driving mechanism 7 coupling shaft, position pointer 12 can allow operator clearly know the direction that selector valve is connected, it is characterized in that: described valve body is made up of commutate valve body 1 and combustion-supporting air and fume reversing valve body 2 of combustion gas, the combustion gas interface 10 near combustion gas commutation valve body 1 is provided with A1 fuel gas inlet, by combustion gas interface 10 by the combustion gas in external world input combustion gas chamber, described spool 3 is embedded the inner chamber at combustion-supporting air and fume reversing valve body 2, and sealed by high-temperature resistant seal ring, spool 3 can rotate in combustion-supporting air and fume reversing valve body 2, the phenomenon of gas leakage is there will not be in rotation process, C1, C2 cavity is provided with side by side in spool 3, commutate while two cavitys can realize combustion-supporting air and flue gas, when C1 is as combustion-supporting air cavity, C2 is just as flue gas cavity.
As shown in Figure 1, described rotatingshaft 4 is horizontally through from the central shaft of spool 3 of combustion gas commutation valve body 1 and combustion-supporting air and fume reversing valve body, combustion gas chamber 5 is offered in the part that rotatingshaft 4 passes combustion gas commutation valve body 1, the outer wall of this partial turn axle and combustion gas are commutated between valve body 1 inwall and are sealed by the first refractory seal assembly 6, and commutate between valve body 1 at the close fore-end of rotatingshaft 4 and combustion gas and be provided with the second rotary bearing 16, while combustion gas commutation valve body 1 normal rotation, also gas leak phenomenon is there will not be at guarantee rotatingshaft 4, offer the B1 fuel gas inlet be communicated with combustion gas chamber 5 near one end of combustion gas interface 10 at rotatingshaft 4, and docked with the A1 fuel gas inlet in combustion gas interface 10 by B1 fuel gas inlet, make combustion gas can enter in flue gas chamber 5 by A1 fuel gas inlet, the part that described rotatingshaft 4 passes combustion-supporting air and fume reversing valve body 2 crosses C1, C2 cavity of spool, and is fixedly connected with spool, and the rotatingshaft the other end is connected with driving mechanism 7, and can under the driving of driving mechanism 7, be with movable valve plug 3 to rotate in valve body.
As shown in Fig. 1, Fig. 1-1, Fig. 1-2 and Fig. 1-5, B2, B3 gas outlet is offered in the part in the corresponding combustion gas chamber 5 of rotatingshaft 4, combustion gas commutation valve body 1 offer towards different A2, A3 gas outlets, A2, A3 gas outlet is not arranged on same plane, and shape angle in 90 ° between two gas outlets, be arranged on B2, B3 gas outlet on rotatingshaft 4 to be arranged side by side along rotatingshaft substantially horizontal, wherein B2 gas outlet and A2 gas outlet are arranged on same longitudinal cross-section, and B3 gas outlet and A3 gas outlet are arranged on same longitudinal cross-section; When driving mechanism 7 drives rotatingshaft 4 to turn to the first working position A, B2 gas outlet and A2 gas outlet are closed, and B3 gas outlet is communicated with A3 gas outlet; When driving mechanism 7 drives rotatingshaft 4 to turn to the second working position B, B2 gas outlet is communicated with A2 gas outlet, and B3 gas outlet and A3 gas outlet are closed;
As Fig. 1, Fig. 1-3, Fig. 1-4, shown in Fig. 1-5, described combustion-supporting air and fume reversing valve body 2 are square valve body, A4 combustion air inlet is offered in the position of combustion-supporting air and fume reversing valve body 2 corresponding spool C1 cavity, the outlet of A5 combustion-supporting air and flue gas inlet, A6 smoke outlet, A7 combustion air inlet is offered in the position of combustion-supporting air and fume reversing valve body 2 corresponding spool C2 cavity, the outlet of A8 combustion-supporting air and flue gas inlet, A9 smoke outlet, wherein A4 combustion air inlet and, A7 combustion air inlet is arranged on the top of valve body, A6 smoke outlet and A9 smoke outlet are arranged on the below of valve body, the outlet of A5 combustion-supporting air and flue gas inlet are arranged on the front of valve body, the outlet of A8 combustion-supporting air and flue gas inlet are arranged on the rear of valve body, the same longitudinal cross-section of spool C1 cavity offers B4 port, B5 port, the same longitudinal cross-section of spool C2 cavity offers B6 port, B7 port, described B4 port and B5 port, angle between B6 port and B7 port are 90 °, and the port on two cavitys is towards inconsistent, when driving mechanism 7 drives rotatingshaft 4 to turn to the first working position A, B4 port on spool C1 cavity is communicated with A4 combustion air inlet upward, B5 port exports with A5 combustion-supporting air forward and flue gas inlet is communicated with, B6 port on spool C2 cavity exports with A8 combustion-supporting air backwards and flue gas inlet is communicated with, B7 port is communicated with A9 smoke outlet down, now C1 cavity is combustion-supporting air cavity, the outlet of A5 combustion-supporting air and flue gas inlet are combustion-supporting air outlet, C2 cavity is flue gas cavity, and the outlet of A8 combustion-supporting air and flue gas inlet are flue gas inlet, when driving mechanism 7 drives rotatingshaft 4 to turn to the second working position B, B4 port on spool C1 cavity exports with A5 combustion-supporting air forward and flue gas inlet is communicated with, B5 port is communicated with A6 smoke outlet down, B6 port on spool C2 cavity is communicated with A7 combustion air inlet upward, B7 port exports with A8 combustion-supporting air backwards and flue gas inlet is communicated with, now, C1 cavity is flue gas cavity, the outlet of A5 combustion-supporting air and flue gas inlet are flue gas inlet, C2 cavity is combustion-supporting air cavity, and the outlet of A8 combustion-supporting air and flue gas inlet are combustion-supporting air outlet.
During utility model works, as Figure 1-5, when position pointer 12 is positioned at A working position (the first working position), A2 gas outlet is closed, A3 gas outlet is connected, and combustion gas enters combustion gas chamber 5 from A1 fuel gas inlet, and enters in burner from A3 gas outlet.Meanwhile, the A4 combustion air inlet on C1 cavity is connected, and A6 smoke outlet is closed, and the A7 combustion air inlet on C2 cavity is closed, and A9 smoke outlet is connected; Combustion-supporting air enters C1 cavity by A4 combustion air inlet, now C1 cavity is combustion-supporting air cavity, the outlet of A5 combustion-supporting air and flue gas inlet use as combustion-supporting air outlet, combustion-supporting air in C1 cavity is exported by A5 combustion-supporting air and flue gas inlet enters burner, C2 cavity is flue gas cavity, the outlet of A8 combustion-supporting air and flue gas inlet use as flue gas inlet, and flue gas is exported by A8 combustion-supporting air and flue gas inlet enters C2 cavity, then discharges from A9 smoke outlet A9.
When needs commutate, by driving mechanism 7 rotary motion axle 4, rotation angle is 90 °, now, when pointing to B working position (i.e. the second working position) in Fig. 1-5 as position pointer 12, A2 gas outlet is connected, and A3 gas outlet is closed, combustion gas enters combustion gas chamber 5 from A1 fuel gas inlet, and enters burner from A2 gas outlet, simultaneously, A7 combustion air inlet on C2 cavity is connected, A9 smoke outlet is closed, on C1 cavity, A4 combustion air inlet is closed, A6 smoke outlet is connected, combustion-supporting air enters C2 cavity by A7 combustion air inlet, now C2 cavity is combustion-supporting air chamber, the outlet of A8 combustion-supporting air and flue gas inlet use as combustion-supporting air outlet, combustion-supporting air A8 combustion-supporting air outlet in C1 cavity and flue gas inlet enter burner, C1 cavity is flue gas cavity, the outlet of A5 combustion-supporting air and flue gas inlet use as flue gas inlet, flue gas is exported by A5 combustion-supporting air and flue gas inlet enters C1 cavity, discharged by A6 smoke outlet again.
The conversion of position A and position B drives rotatingshaft 4 to rotate realization by driving mechanism 7, because combustion gas chamber, combustion-supporting air chamber (flue gas chamber) and combustion-supporting air chamber (flue gas chamber) are all positioned on rotatingshaft 4, so the synchronism commutated can be ensured.
Claims (6)
1. collude step rotary reversing valve for one kind two nine, comprise valve body, spool, rotatingshaft and driving mechanism, combustion gas interface is provided with in the side of valve body, opposite side is provided with end cover, it is characterized in that: described valve body is made up of commutate valve body (1) and combustion-supporting air and fume reversing valve body (2) of combustion gas, described combustion gas interface (10) is arranged on the side near combustion gas commutation valve body (1), and in combustion gas interface, be provided with A1 fuel gas inlet; Described spool (3) seals the inner chamber be embedded at combustion-supporting air and fume reversing valve body (2), in spool (3), be provided with C1, C2 cavity side by side; Described rotatingshaft (4) is horizontally through valve body, and one end is docked with A1 fuel gas inlet, and the other end is connected with driving mechanism (7), and can rotate in valve body under the driving of driving mechanism (7); Combustion gas chamber (5) is provided with in the part of described rotatingshaft (4) through combustion gas commutation valve body (1), the outer wall of this partial turn axle and combustion gas are commutated between valve body (1) inwall and are sealed by the first refractory seal assembly (6), the B1 fuel gas inlet be communicated with combustion gas chamber (5) is offered in the position of insertion end corresponding A 1 fuel gas inlet of rotatingshaft (4), offer B2, B3 gas outlet in the part of the corresponding combustion gas chamber (5) of rotatingshaft (4), combustion gas commutation valve body (1) offers towards different A2, A3 gas outlets; Described rotatingshaft (4) crosses C1, C2 cavity of spool through the part of combustion-supporting air and fume reversing valve body (2), and be fixedly connected with spool, each cavity of spool (3) offers two respectively towards different ports, and the port on two cavitys is not towards identical yet, also offer three towards different ports in the position of combustion-supporting air and the upper corresponding each cavity of fume reversing valve body (2); When rotatingshaft (4) turns to different commutation station, the commutate gas outlet of valve body (1) different direction of one of them gas outlet on rotatingshaft (4) and combustion gas is communicated with, meanwhile, in three ports of the upper corresponding each cavity of combustion-supporting air and fume reversing valve body (2), any two adjacent ports are communicated with the port of two on this cavity.
2. collude step rotary reversing valve for two nine according to claim 1, it is characterized in that: A2, A3 gas outlet on described combustion gas commutation valve body (1) is arranged in Different Plane, and shape angle in 90 ° between two gas outlets, be arranged on upper B2, B3 gas outlet of rotatingshaft (4) to be arranged side by side along rotatingshaft substantially horizontal, wherein B2 gas outlet and A2 gas outlet are arranged on same longitudinal cross-section, and B3 gas outlet and A3 gas outlet are arranged on same longitudinal cross-section; When driving mechanism (7) drives rotatingshaft (4) to turn to the first working position A, B2 gas outlet and A2 gas outlet are closed, and B3 gas outlet is communicated with A3 gas outlet; When driving mechanism (7) drives rotatingshaft (4) to turn to the second working position B, B2 gas outlet is communicated with A2 gas outlet, and B3 gas outlet and A3 gas outlet are closed.
3. collude step rotary reversing valve for two nine according to claim 1, it is characterized in that: described combustion-supporting air and fume reversing valve body (2) are square valve body, be arranged on three through hole A4 combustion air inlet of combustion-supporting air and fume reversing valve body (2) corresponding spool C1 cavity, the outlet of A5 combustion-supporting air and flue gas inlet, A6 smoke outlet and be separately positioned on the top of valve body, front and below; Be arranged on three through hole A7 combustion air inlet of combustion-supporting air and fume reversing valve body (2) corresponding spool C2 cavity, the outlet of A8 combustion-supporting air and flue gas inlet, A9 smoke outlet and be separately positioned on the top of valve body, rear and below; The same longitudinal cross-section of spool C1 cavity offers B4 port, B5 port, the same longitudinal cross-section of spool C2 cavity offers B6 port, B7 port, described B4 port and B5 port, angle between B6 port and B7 port are 90 °, and the port on two cavitys is towards inconsistent; When driving mechanism (7) drives rotatingshaft (4) to turn to the first working position A, B4 port on spool C1 cavity is communicated with A4 combustion air inlet upward, B5 port exports with A5 combustion-supporting air forward and flue gas inlet is communicated with, B6 port on spool C2 cavity exports with A8 combustion-supporting air backwards and flue gas inlet is communicated with, and B7 port is communicated with A9 smoke outlet down; When driving mechanism (7) drives rotatingshaft (4) to turn to the second working position B, B4 port on spool C1 cavity exports with A5 combustion-supporting air forward and flue gas inlet is communicated with, B5 port is communicated with A6 smoke outlet down, B6 port on spool C2 cavity is communicated with A7 combustion air inlet upward, and B7 port exports with A8 combustion-supporting air backwards and flue gas inlet is communicated with.
4. collude step rotary reversing valve for two nine according to claim 1 or 2 or 3, it is characterized in that: sealed by the second refractory seal assembly (8) between described spool (3) and combustion-supporting air and fume reversing valve body (2), intermediate portion and the rotatingshaft (4) of spool (3) weld together.
5. collude step rotary reversing valve, it is characterized in that for two nine according to claim 1 or 2 or 3: described rotatingshaft (4) passes from the central shaft of combustion gas commutation valve body (1) and spool (3).
6. collude step rotary reversing valve for two nine according to claim 1 or 2 or 3, it is characterized in that: described driving mechanism (7) is connected with rotatingshaft (4) by driving mechanism connecting base (11), outside the end cover (9) near combustion-supporting air and fume reversing valve side, be provided with gland (15), be provided with position pointer (12) at rotatingshaft (4) and the position of driving mechanism (7) coupling shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552715.3U CN204083366U (en) | 2014-09-24 | 2014-09-24 | Collude step rotary reversing valve for two nine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420552715.3U CN204083366U (en) | 2014-09-24 | 2014-09-24 | Collude step rotary reversing valve for two nine |
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| Publication Number | Publication Date |
|---|---|
| CN204083366U true CN204083366U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420552715.3U Active CN204083366U (en) | 2014-09-24 | 2014-09-24 | Collude step rotary reversing valve for two nine |
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| CN (1) | CN204083366U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240335A (en) * | 2015-11-11 | 2016-01-13 | 柳州市力万科技有限公司 | Manipulator joint |
| CN105736500A (en) * | 2016-03-11 | 2016-07-06 | 重庆华渝重工机电有限公司 | Two-position four-way rotary reversing valve |
-
2014
- 2014-09-24 CN CN201420552715.3U patent/CN204083366U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240335A (en) * | 2015-11-11 | 2016-01-13 | 柳州市力万科技有限公司 | Manipulator joint |
| CN105736500A (en) * | 2016-03-11 | 2016-07-06 | 重庆华渝重工机电有限公司 | Two-position four-way rotary reversing valve |
| CN105736500B (en) * | 2016-03-11 | 2017-07-07 | 重庆华渝重工机电有限公司 | Two four-way rotary reversing valves |
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