CN219452974U - Vertical installation eccentric tuber pipe check valve - Google Patents
Vertical installation eccentric tuber pipe check valve Download PDFInfo
- Publication number
- CN219452974U CN219452974U CN202320580540.6U CN202320580540U CN219452974U CN 219452974 U CN219452974 U CN 219452974U CN 202320580540 U CN202320580540 U CN 202320580540U CN 219452974 U CN219452974 U CN 219452974U
- Authority
- CN
- China
- Prior art keywords
- check valve
- fan blade
- flabellum
- arc
- air duct
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Air-Flow Control Members (AREA)
Abstract
The utility model relates to a vertical installation eccentric air duct check valve which comprises a valve body and is characterized by further comprising a first fan blade, a second fan blade, a fixed limiter and an electric limiter, wherein the first fan blade and the second fan blade are connected in the valve body in a same direction in a rotating way, the first fan blade and the second fan blade are passively limited through the fixed limiter and actively limited and locked through the electric limiter, and a ventilation system of an air duct is linked with the electric limiter to further control the start and stop of the electric limiter. The utility model solves the problem that the fan blade sags or can not be opened due to the dead weight under the condition of vertical installation of the traditional check valve, and the check valve has good effect of preventing air backflow.
Description
Technical Field
The utility model relates to the field of ventilation system construction, in particular to a vertical installation eccentric air duct check valve.
Background
The check valve is also called one-way valve or check valve, which is used to prevent the medium in pipeline from flowing backwards, when the inlet pressure is greater than the sum of the weight of the valve clack and its flow resistance, the valve is opened, otherwise, when the medium flows backwards, the valve is closed, the air pipe check valve is also called one kind of check valve, and it is widely used in the ventilating duct to prevent the air flow flowing backwards and the fan from flowing backwards.
At present, in the construction field of ventilation systems, some ventilation pipelines are often vertically installed, when the check valve is installed, if the check valve is installed vertically, as shown in fig. 7, the conventional check valve can be free from the influence of air flow due to the weight of the valve body, and the check valve is always in a self-hanging or unopened state, so that the check valve cannot be installed vertically. For example, chinese patent publication No. CN213655824U, named air duct check valve, discloses a valve body, a blade shaft, a blade, a heavy hammer, a first wind shield and a second wind shield; one end of the heavy hammer is fixedly connected with the end part of the blade shaft, and the other end of the heavy hammer extends out of the valve body to drive the blade to be closed; the air pipe check valve is in a normal state, the top of the blade is closed with the first wind shielding, the bottom of the blade is closed with the second wind shielding, the blade is in a closed state through gravity driving of the heavy hammer, the air pipe check valve can be vertically installed, but the blade of the check valve has no locking function, is easily influenced by external factors to cause shaking of the fan blade, and is easy to generate an air backflow phenomenon.
Disclosure of Invention
The present utility model is directed to solving the above-mentioned problems and providing a vertically mounted eccentric air duct check valve.
The utility model adopts the following technical scheme to realize the aim:
the utility model provides a vertical installation eccentric tuber pipe check valve, includes the valve body, still includes first flabellum, second flabellum, fixed stopper, electronic stopper, and first flabellum, second flabellum syntropy rotate and connect in the valve body, and first flabellum, second flabellum are spacing through fixed stopper is passive, and it is spacing and locking through electronic stopper initiative, and the ventilation system of tuber pipe and the linkage of electronic stopper and then control electronic stopper open and stop.
In particular, the fixed limiter comprises a rectangular limiting frame, and a limiting strip is arranged at the bottom of one side of the limiting frame.
In particular, the first fan blade comprises a first horizontal part, a first arc-shaped part and a first Z-shaped part, wherein the first horizontal part and the first Z-shaped part are connected together through the first arc-shaped part, one side, far away from the first arc-shaped part, of the first horizontal part is fixedly provided with a first valve rod in a penetrating mode, the middle part of the front inner wall and the rear inner wall of the limiting frame is rotationally connected through the first valve rod, the top edge of the first horizontal part is provided with a first balancing weight close to one side of the first valve rod, and the first fan blade is leveled through the first balancing weight.
In particular, the second fan blade comprises a second horizontal part, a second arc-shaped part and a second Z-shaped part, the second horizontal part and the second Z-shaped part are connected together through the second arc-shaped part, one side, far away from the second arc-shaped part, of the second horizontal part is fixedly provided with a second valve rod in a penetrating mode, the end portions of the front inner wall and the rear inner wall of the limiting frame are rotatably connected through the second valve rod, a second balancing weight is arranged on one side, close to the second valve rod, of the top edge of the second horizontal part, and the second fan blade is leveled through the second balancing weight.
Particularly, when the valve body is closed, the lower plate of the first Z-shaped part is limited to ascend through the limiting frame, the bottom of the second horizontal part is limited to descend through the limiting strip, and the bottom of the first horizontal part is abutted with the upper plate of the second Z-shaped part.
In particular, the electric limiter comprises a motor arranged on the outer wall of the valve body, the second valve rod is driven to rotate by the motor, and the motor is started and stopped in linkage with a ventilation system of the air pipe.
The beneficial effects of the utility model are as follows:
1. the lever balance principle is utilized, the first balancing weight and the second balancing weight are additionally arranged for the eccentric structure of the check valve, the dead weight is utilized, the first fan blade and the second fan blade are convenient to level, the fixed limiter can also control the maximum opening angles of the first fan blade and the second fan blade, the problem that the fan blade sags or cannot be opened due to the dead weight under the condition of vertical installation of the traditional check valve is avoided, and the service function of the check valve can be ensured to be maintained;
2. the electric limiter is linked with the ventilation system of the air pipe, whether the first fan blade and the second fan blade are convenient to control or not are locked, and fan blade actions caused by other factors are avoided, so that the valve body loses the effect of preventing air backflow, and the check valve is good in effect of preventing air backflow.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a first fan blade according to the present utility model;
FIG. 3 is a schematic view of the state of the first and second vanes when the check valve of the present utility model is closed;
FIG. 4 is a schematic view of the states of the first and second vanes when the check valve of the present utility model is opened;
FIG. 5 is a schematic diagram illustrating a force analysis of the first or second fan blade according to the present utility model under the influence of gravity;
FIG. 6 is a diagram illustrating a stress analysis of a first fan blade with a first balancing weight or a second fan blade with a second balancing weight according to the present utility model;
FIG. 7 is a schematic diagram of a conventional check valve;
in the figure: 1-a valve body;
2-a first fan blade; 21-a first horizontal portion; 2 a first arcuate portion; 23-a first Z-shaped portion; 24-a first valve stem; 25-a first balancing weight;
3-a second fan blade; 31-a second horizontal portion; 32-a second arcuate portion; 33-a second Z-shaped portion; 34-a second valve stem; 35-a second balancing weight;
4-fixing a limiter; 41-limiting frames; 42-limiting strips;
5-an electric limiter;
the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1-3, a vertical installation eccentric air duct check valve comprises a valve body 1, and further comprises a first fan blade 2, a second fan blade 3, a fixed limiter 4 and an electric limiter 5, wherein the first fan blade 2 and the second fan blade 3 are connected in the valve body 1 in a same direction in a rotating way, the first fan blade 2 and the second fan blade 3 are passively limited through the fixed limiter 4 and are actively limited and locked through the electric limiter 5, a ventilation system of an air duct is linked with the electric limiter 5 to further control the start and stop of the electric limiter 5, the electric limiter 5 is linked with the ventilation system of the air duct to facilitate the control of whether the first fan blade 2 and the second fan blade 3 are locked, and the check valve is good in air backflow prevention effect. The outer side wall of the valve body 1 can be provided with an arrow mark for guiding the direction, so that the valve body 1 is prevented from being reversely arranged.
The fixed limiter 4 comprises a rectangular limiting frame 41, a limiting strip 42 is arranged at the bottom of one side of the limiting frame 41, the first fan blade 2 comprises a first horizontal part 21, a first arc-shaped part 22 and a first Z-shaped part 23, the first horizontal part 21 and the first Z-shaped part 23 are connected together through the first arc-shaped part 22, a first valve rod 24 is fixedly penetrated through one side of the first horizontal part 21 far away from the first arc-shaped part 22 and is rotatably connected to the middle parts of the front inner wall and the rear inner wall of the limiting frame 41 through the first valve rod 24, a first balancing weight 25 is arranged on one side, close to the first valve rod 24, of the top edge of the first horizontal part 21, and the first fan blade 2 is leveled through the first balancing weight 25; the second fan blade 3 comprises a second horizontal part 31, a second arc-shaped part 32 and a second Z-shaped part 33, the second horizontal part 31 and the second Z-shaped part 33 are connected together through the second arc-shaped part 32, one side, far away from the second arc-shaped part 32, of the second horizontal part 31 is fixedly provided with a second valve rod 34 in a penetrating mode, the front and rear inner wall end portions of the limiting frame 41 are rotatably connected through the second valve rod 34, a second balancing weight 35 is arranged on one side, close to the second valve rod 34, of the top edge of the second horizontal part 31, and the second fan blade 3 is leveled through the second balancing weight 35.
The first balancing weight 25 and the second balancing weight 35 are made of stainless steel blocks, are made of the same batch of factory materials with the first fan blade 2 and the second fan blade 3, and are additionally installed according to the actual situation of the site.
When the valve body 1 is closed, the lower plate of the first Z-shaped portion 23 is restricted from ascending by the limit frame 41, the bottom of the second horizontal portion 31 is restricted from descending by the limit bar 42, and the bottom of the first horizontal portion 21 is abutted against the upper plate of the second Z-shaped portion 33. The setting of spacing 42 can guarantee that second flabellum 3 anticlockwise rotates, and the setting of spacing frame 41 can guarantee that first flabellum 2 anticlockwise rotates, therefore, fixed stopper 4 can guarantee that first flabellum 2 and second flabellum 3 syntropy rotate and spacing.
The first arc-shaped part 22 and the second arc-shaped part 32 are ribs, are respectively used for reinforcing the structural strength of the first fan blade 2 and the second fan blade 3, avoid deformation, facilitate the setting of the first Z-shaped part 23, facilitate the setting of the second Z-shaped part 33, facilitate the overlapping and abutting of the second fan blade 3 and the first fan blade 2, and have good closing effect.
As shown in fig. 4, when the ventilation system of the air pipe works, the first fan blade 2 and the second fan blade 3 are opened under the action of air flow, so that ventilation is realized, when the ventilation system does not work, the first fan blade 2 automatically approaches the level under the action of the first balancing weight 25, and the second fan blade 3 automatically approaches the level under the action of the second balancing weight 35, so that the check valve is ensured to be normally used, and air backflow is prevented.
As shown in fig. 2, the eccentric structure of the check valve is provided with weights on one side of the fan blade by utilizing the lever balance principle, and the use function of the check valve is ensured to be maintained by utilizing the self-weight balance on two sides.
As shown in fig. 5, when the check valve is installed vertically, under the action of gravity, the a end of the check valve will hang down and cannot close by itself, so that the effect of preventing the air from flowing backwards cannot be ensured, and the stress analysis is as follows:
G 2 ·L 2 ＜G 1 ·L 1
wherein: g 1 -gravity at end B, L 1 -B-end moment arm, G 2 end-A gravity, L 2 -a-end moment arm.
As shown in fig. 3 and 6, after the weight is assembled, the force F acting on the fan blade A, B rotates around the valve rod O point, when the force F of the B end is larger, the dead weight of the a end is overcome, so that the fan blade gradually tends to be horizontal, the descending distance of the B end is limited by the fixed limiter 4, the effect of preventing air backflow of the check valve is ensured, and the stress analysis is as follows:
F 1 ·L 1 ＝F 2 ·L 2
wherein: f (F) 1 -gravity at end B, L 1 -B end arm of force, F 2 end-A gravity, L 2 -a-end moment arm.
To ensure the blade level, the moment of the blade A, B end is equal, and after the weight is added to the B end, the force F of the B end 1 Downward, at this time, to ensure equal force, force F at end A 2 Should be upward, and F 2 ＝G 2 . Wherein: the weight of balancing weight is:
the electric limiter 5 comprises a motor arranged on the outer wall of the valve body 1, the second valve rod 34 is driven to rotate by the motor, and the motor is started and stopped in linkage with a ventilation system of the air pipe.
The ventilation system of tuber pipe generally comprises ventilation equipment, air pipe, silencer, fan, control system, and ventilation control system can adopt different control modes according to the condition of difference, like single ventilation equipment decides amount of wind ventilation control system, many ventilation equipment variable frequency control system etc. mainly is control ventilation equipment and fan work, and this application links the electronic stopper 5 and the control system of check valve, and still is equipped with the time delay ware between electronic stopper 5 and the fan, and the motor of electronic stopper 5 produces the linkage through control system and fan, avoids other factor to influence, causes the flabellum to rock.
When the fan is ready to be started, the switch is turned on, the electric signal is fed back to the electric limiter 5 of the air pipe check valve at first to drive the motor to rotate, limiting of the fan blades is relieved, the fan blades of the air pipe check valve can act according to the air quantity of the fan, after the electric signal reaches the electric limiter 5, the electric signal passes through the delay device, then the electric signal reaches the fan, the fan motor rotates, and normal operation of a ventilation system is guaranteed.
When the fan is ready to be closed, the switch is pressed down, the electric signal is fed back to the fan, the fan motor stops rotating at first, the fan motor stops rotating through the delayer (the period of time until the fan motor stops completely), then the electric signal reaches the electric limiter 5 of the air pipe check valve again, the motor is driven to rotate, the limit is opened, the fan blade of the air pipe check valve is locked, and the air backflow is prevented.
The check valve of the air pipe is linked with the fan to ensure the normal use of the functions of all parts of the ventilation system. The air backflow prevention function of the air pipe check valve vertically installed is realized through starting in advance and closing in a delayed manner; the utility model has the advantages of easy manufacture, low cost and effectiveness.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.
Claims (7)
1. The utility model provides a vertical installation eccentric tuber pipe check valve, including valve body (1), a serial communication port, still include first flabellum (2), second flabellum (3), fixed stopper (4), electronic stopper (5), first flabellum (2), second flabellum (3) syntropy rotate connect in valve body (1), and first flabellum (2), second flabellum (3) are spacing through fixed stopper (4) passive, through electronic stopper (5) initiative spacing and locking, and the ventilation system of tuber pipe and electronic stopper (5) linkage and then control the start-stop of electronic stopper (5).
2. The vertical installation eccentric air duct check valve according to claim 1, wherein the fixed limiter (4) comprises a rectangular limiting frame (41), and a limiting strip (42) is arranged at the bottom of one side of the limiting frame (41).
3. The vertical installation eccentric air duct check valve according to claim 2, wherein the first fan blade (2) comprises a first horizontal portion (21), a first arc-shaped portion (22) and a first Z-shaped portion (23), the first horizontal portion (21) and the first Z-shaped portion (23) are connected together through the first arc-shaped portion (22), a first valve rod (24) is fixedly penetrated at one side, far away from the first arc-shaped portion (22), of the first horizontal portion (21), the first valve rod (24) is rotatably connected to the middle parts of the front inner wall and the rear inner wall of the limiting frame (41), a first balancing weight (25) is arranged at one side, close to the first valve rod (24), of the top edge of the first horizontal portion (21), and the first fan blade (2) is leveled through the first balancing weight (25).
4. A vertical installation eccentric tuber pipe check valve according to claim 3, wherein second flabellum (3) include second horizontal part (31), second arc portion (32), second Z shape portion (33), second horizontal part (31) and second Z shape portion (33) link together through second arc portion (32), second valve rod (34) has been run through to second horizontal part (31) keep away from second arc portion (32) one side to rotate through second valve rod (34) and connect at the front and back inner wall tip of spacing frame (41), second balancing weight (35) are equipped with in second horizontal part (31) topside next to second valve rod (34) one side, second flabellum (3) are leveled through second balancing weight (35).
5. The vertical installed eccentric air duct check valve as claimed in claim 4, wherein the first arc-shaped portion (22) and the second arc-shaped portion (32) are ribs for reinforcing the structural strength of the first fan blade (2) and the second fan blade (3), respectively, so as to avoid deformation.
6. The vertical installation eccentric air duct check valve according to claim 5, wherein when the valve body (1) is closed, the lower plate of the first Z-shaped part (23) is limited to ascend by the limiting frame (41), the bottom of the second horizontal part (31) is limited to descend by the limiting bar (42), and the bottom of the first horizontal part (21) is abutted with the upper plate of the second Z-shaped part (33).
7. A vertically mounted eccentric air duct check valve as in claim 6 wherein the motorized stop (5) comprises a motor mounted on the outer wall of the valve body (1) and the second valve stem (34) is rotated by the motor, the motor being activated and deactivated in conjunction with the air duct ventilation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320580540.6U CN219452974U (en) | 2023-03-23 | 2023-03-23 | Vertical installation eccentric tuber pipe check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320580540.6U CN219452974U (en) | 2023-03-23 | 2023-03-23 | Vertical installation eccentric tuber pipe check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219452974U true CN219452974U (en) | 2023-08-01 |
Family
ID=87385981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320580540.6U Active CN219452974U (en) | 2023-03-23 | 2023-03-23 | Vertical installation eccentric tuber pipe check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219452974U (en) |
-
2023
- 2023-03-23 CN CN202320580540.6U patent/CN219452974U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205858000U (en) | A kind of can the world bolt device of linkage from top to bottom | |
| WO2009082882A1 (en) | Gravity-operated opening and closing gate controlled by water level | |
| CN219452974U (en) | Vertical installation eccentric tuber pipe check valve | |
| US7874809B2 (en) | Water-lifting pump apparatus and method for controlling operation thereof | |
| JP5120774B2 (en) | Low loss flap valve | |
| CN209990954U (en) | Seal valve for gas circuit | |
| CN210712757U (en) | Butterfly valve type flap valve for bidirectional flow passage | |
| CN213954002U (en) | Automatic turning device | |
| EP1301665B1 (en) | Pump station | |
| CN213929497U (en) | Flow limiting valve | |
| CN212616351U (en) | Electric hybrid control air valve | |
| CN107700551A (en) | A kind of electronic well lid | |
| CN114484022A (en) | Micro-resistance check valve | |
| CN211288819U (en) | Ball valve capable of preventing blockage by dirt | |
| CN2110123U (en) | Non-block slow close check valve | |
| CN2607153Y (en) | Fire-prevention valve | |
| CN219242717U (en) | Backflow preventing device for petroleum machinery | |
| CN215410453U (en) | High-safety double-baffle valve for power station desulfurization | |
| CN221723423U (en) | Rocker valve | |
| CN220396500U (en) | Silt-proof butterfly valve | |
| CN218440814U (en) | Small-bore circular check valve | |
| CN206234455U (en) | Stop valve | |
| EP3124886B1 (en) | Volume flow regulator | |
| CN204756037U (en) | Check valve of waterproof hammer | |
| CN214222030U (en) | Buffer valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |