CN215258005U - Adjustable check valve - Google Patents
Adjustable check valve Download PDFInfo
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- CN215258005U CN215258005U CN202121317287.2U CN202121317287U CN215258005U CN 215258005 U CN215258005 U CN 215258005U CN 202121317287 U CN202121317287 U CN 202121317287U CN 215258005 U CN215258005 U CN 215258005U
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Abstract
The utility model discloses an adjustable check valve, wherein a valve body channel is formed in the valve body in a hollow way, one end of the valve body channel is communicated with an exhaust port, the other end of the valve body channel is communicated with an air inlet of a shared exhaust passage, and a valve block is rotationally arranged in the valve body channel; the flow guide body comprises a horizontal section and an arc-shaped section which are hollow inside, the horizontal section and the arc-shaped section are connected to form a flow guide channel, one end of the flow guide channel is communicated with the valve body channel, the other end of the flow guide channel is positioned in the shared exhaust passage, and a protective cover plate is arranged in the flow guide channel; the guide plate includes link and free end, and the link rotates to be connected on the horizontal segment, and the free end is connected with the horizontal segment through adjusting the structure, and the tip sliding connection of baffle is in the valve body passageway, and sliding connection subassembly sets up fixes the baffle in the valve body passageway. The utility model provides an adjustable check valve, the holistic size of check valve is adjustable for the check valve can be installed in the flue of equidimension not.
Description
Technical Field
The utility model relates to a check valve technical field especially relates to a check valve with adjustable.
Background
At present, a vertical exhaust duct system is generally adopted in residential buildings, oil fume gas of kitchens of all floors or odor of toilets is uniformly collected, and the roof is led to realize high-altitude dilution and discharge. In order to prevent the spread of fire between residents on upper and lower floors, a fire-proof valve is usually mounted on a smoke discharge branch pipe (close to an air inlet of a vertical exhaust passage system) on each floor, the fire-proof valve is connected with an exhaust passage and is in a normally open state, and once the fire occurs, when the temperature of airflow reaches a specified threshold value, a temperature sensing element of the fire-proof valve acts to automatically close the valve to prevent the spread of the fire between the residents, so that the life and property safety of people is guaranteed.
Although various exhaust duct fire valves are available, the application effect is not ideal, the problems are always caused, more complaints are caused to residents, the living safety of the residents is greatly reduced, most of the fire valves are integrated with check valves, namely the fire check valves, the fire valves play a role of the check valves at ordinary times, and the fire valves play a role of the fire valves in fire disasters; however, from the perspective of fire-proof valves, the thin and light valves are easily deformed and distorted in high-temperature environments in fire, and the sealing performance is reduced, which is not good for fire safety. Meanwhile, the size of the main flue of part of old residential districts is too small, so that the check valve with the guide plate is difficult to install, the area of the main flue is occupied too much, the lower smoke exhaust effect is influenced, and the effect of exhausting smoke and preventing the backflow of the oil smoke is poor due to the installation of the check valve without the guide plate.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a check valve with adjustable to solve the above-mentioned weak point among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
an adjustable check valve comprising:
the valve body is hollow inside to form a valve body channel, one end of the valve body channel is communicated with the exhaust port, the other end of the valve body channel is communicated with the air inlet of the shared exhaust passage, and a valve plate is rotatably arranged in the valve body channel;
the flow guide body comprises a horizontal section and an arc-shaped section which are hollow inside, the horizontal section and the arc-shaped section are connected to form a flow guide channel, one end of the flow guide channel is communicated with the valve body channel, the other end of the flow guide channel is positioned in the common exhaust passage, and a protective cover plate is arranged in the flow guide channel;
the arc-shaped section comprises a guide plate, the guide plate comprises a connecting end and a free end, the connecting end is rotatably connected to the horizontal section, and the free end is connected with the horizontal section through an adjusting structure so as to adjust the installation angle of the guide plate;
sliding connection subassembly, the tip sliding connection of baffle is in the valve body passageway, sliding connection subassembly sets up in the valve body passageway, be used for to being located baffle in the valve body passageway is fixed.
In the adjustable check valve, the arc-shaped connecting end is arranged at the end, connected with the arc-shaped section, of the horizontal section, and the adjusting structure 4 is arranged at the arc-shaped connecting end.
In the adjustable check valve, the adjusting structure 4 comprises an arc-shaped fixing plate and an arc-shaped locking strip, the side wall of the arc-shaped connecting end is provided with a fixing part for fixing the arc-shaped fixing plate, and the arc-shaped locking strip is fixedly connected to the arc-shaped section.
In the adjustable check valve, the arc-shaped locking strip is provided with at least three first sawtooth parts, and the arc-shaped fixing plate is correspondingly provided with second sawtooth parts.
In the adjustable check valve, the fixing member comprises at least three fixing screw holes and at least three fixing bolts, and the arc-shaped fixing plate is provided with fixing holes corresponding to the fixing screw holes.
In the adjustable check valve, the locking piece is further arranged between the arc locking strip and the arc fixing plate, and the locking piece can fix the second sawtooth part on any one of the first sawtooth parts.
Foretell adjustable check valve, the locking piece is including setting up stop pin on the arc locking strip, be provided with the arc locking groove on the arc fixed plate, thereby the stop pin can insert the arc locking inslot realizes thereby fixed between arc locking strip and the arc fixed plate.
In the above-mentioned adjustable check valve, the sliding connection assembly includes a fixing ring, the fixing ring includes an inner ring, an outer ring and an annular connecting plate connecting the inner ring and the outer ring, and an annular locking groove for embedding the end of the horizontal section is formed between the inner ring and the outer ring.
In the adjustable check valve, the side wall of the valve body passage is provided with the sliding groove, the outer ring body is provided with the sliding strip, and the sliding strip is connected in the sliding groove in a sliding manner; a positioning piece is arranged between the sliding groove and the sliding strip, and the sliding strip can be fixed at any position of the sliding groove by the positioning piece.
The lateral wall of the annular locking groove is provided with a first magnetic attraction part along the circumferential direction, the lateral wall of the end part of the horizontal section is provided with a second magnetic attraction part, and the first magnetic attraction part and the second magnetic attraction part are different in magnetism.
In the technical scheme, the utility model provides a pair of check valve with adjustable has following beneficial effect:
the utility model provides an adjustable check valve, which comprises a valve body, a flow guiding body and a sliding connection assembly, wherein the valve body is hollow to form a valve body channel, and a valve block is rotationally arranged in the valve body channel; the baffle includes inside hollow horizontal segment and segmental arc, and horizontal segment and segmental arc are connected and are formed the water conservancy diversion passageway, are provided with protective cover in the water conservancy diversion passageway, through with protective cover and valve block independent setting respectively, the valve block sets up frivolous and be convenient for can open in a flexible way under the air current of range hood or air discharge fan blows, promotes the emission effect of flue gas, and protective cover can keep the leakproofness in conflagration high temperature environment, promotes the safety of preventing fires.
The utility model provides a check valve with adjustable, the segmental arc includes the guide plate, the guide plate is connected with the horizontal segment through adjusting the structure, so can adjust the installation angle of guide plate through adjusting the structure, can be located the length of sharing exhaust passage to the baffle through sliding connection assembly and adjust, so realize adjusting the holistic size of check valve through sliding connection assembly and regulation structure, make the check valve can install in the district main flue of difference, the area that occupies the main flue is little, from the effect of discharging fume that does not influence the main flue.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
FIG. 1 is a front view of an adjustable check valve provided in accordance with an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an adjustable check valve according to an embodiment of the present invention;
FIG. 3 is a second schematic structural view of an adjustable check valve according to an embodiment of the present invention;
fig. 4 is a top view of an arc-shaped fixing plate according to an embodiment of the present invention;
fig. 5 is a schematic structural view of an arc-shaped fixing plate according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an arc-shaped locking bar according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a sliding connection assembly according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a strip-shaped locking groove provided by the embodiment of the present invention.
Description of reference numerals:
1. a valve body;
1.1, a valve body channel; 1.1.1, a first internal thread; 1.2, valve plates;
2. a flow conductor;
2.1, a horizontal section; 2.1.1, a second internal thread; 2.2, a flow guide channel; 2.3, fireproof cover plates; 2.4, a temperature sensing element; 2.5, arc-shaped connecting ends; 2.6, a baffle plate;
3. a baffle;
3.1, an arc-shaped plate; 3.2, arc-shaped side plates;
4. an adjustment structure;
4.1, fixing the screw hole; 4.2, fixing holes; 4.3, arc-shaped fixing plates; 4.4, arc-shaped locking strips; 4.5, a second sawtooth part; 4.6, arc-shaped open slots; 4.7, a first serration;
5. a sliding connection assembly;
5.1, an inner ring body; 5.2, an outer ring body; 5.3, annular locking grooves; 5.4, an annular connecting plate; 5.5, a sliding groove; 5.6, positioning parts; 5.7, a sliding strip; 5.8, a first magnetic part; 5.9, strip-shaped locking grooves.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1-8, an embodiment of the present invention provides an adjustable check valve, which includes a valve body 1, a flow guiding body 2 and a sliding connection assembly 5, wherein the valve body 1 is hollow to form a valve body channel 1.1, one end of the valve body channel 1.1 is communicated with an exhaust port, the other end is communicated with an air inlet of a common exhaust passage, and a valve plate 1.2 is rotatably disposed in the valve body channel 1.1; the flow guide body 2 comprises a horizontal section 2.1 and an arc-shaped section which are hollow inside, the horizontal section 2.1 and the arc-shaped section are connected to form a flow guide channel 2.2, one end of the flow guide channel 2.2 is communicated with the valve body channel 1.1, the other end of the flow guide channel is positioned in the common exhaust passage, and a protective cover plate 2.3 is arranged in the flow guide channel 2.2; the arc-shaped section comprises a guide plate 3, the guide plate 3 comprises a connecting end and a free end, the connecting end is rotatably connected to the horizontal section 2.1, the free end is connected with the horizontal section 2.1 through an adjusting structure 4, and the adjusting structure 4 can adjust the installation angle of the guide plate 3; the end part of the guide body 2 is connected in the valve body channel 1.1 in a sliding manner, and the sliding connection assembly 5 is arranged in the valve body channel 1.1 and used for fixing the guide body 2 in the valve body channel 1.1.
Specifically, valve body 1's cross sectional shape is square structure, and valve body 1's one end is connected with the gas vent, and fixed connection is realized to accessible sealing flange and fixed screw between valve body 1 and the gas vent, can also scribble the fire prevention sealant in the position that valve body 1 is connected with the gas vent, can also be provided with the sealing washer on valve body passageway 1.1 to make sealing connection between valve body passageway 1.1 and the gas vent, this is prior art, no longer gives unnecessary details here. The other end of valve body 1 is linked together with baffle 2, baffle 2 is including continuous horizontal segment 2.1 and segmental arc, horizontal segment 2.1 and segmental arc are split type structure, horizontal segment 2.1 one end endotheca is fixed in the inside of valve body 1, horizontal segment 2.1 and segmental arc's inside forms a water conservancy diversion passageway 2.2, water conservancy diversion passageway 2.2 includes horizontal part and segmental arc, the contained angle between horizontal part and the segmental arc is located 30 to 90 between, so make the gas vent, valve body passageway 1.1, water conservancy diversion passageway 2.2 and shared exhaust passage are linked together in proper order, when the flue gas passes through water conservancy diversion passageway 2.2, the flow direction changes to vertical upwards flow from the direction that the level is to, thereby effectively prevent the adverse current of flue gas.
In this embodiment, be provided with valve block 1.2 in valve body passageway 1.1, valve block 1.2 rotates through rotating the connecting piece and connects in valve body passageway 1.1, and valve block 1.2 is used for controlling the normal discharge of flue gas, and the quality of valve block 1.2 is very light, and the air current of range hood or air discharge fan blows down can open in a flexible way to make the flue gas discharge to in valve body passageway 1.1 and the water conservancy diversion passageway 2.2, when range hood and air discharge fan close, when the drive of air current, valve block 1.2 closed valve body passageway 1.1 this moment. A fireproof cover plate 2.3 is arranged in the diversion channel 2.2, the fireproof cover plate 2.3 is used for fireproof function, the fireproof cover plate 2.3 and the valve plate 1.2 are two independent structures, the fireproof and smoke exhaust effect is improved, one end of the fireproof cover plate 2.3 is rotatably connected on the inner wall of the bottom of the diversion body 2, the other end of the fireproof cover plate 2.3 is connected on the side wall of the diversion plate 3 through a temperature sensing element 2.4, the temperature sensing element 2.4 is a fuse link, when the temperature rises to a specified threshold value, the fuse link is fractured, an elastic driving mechanism is also arranged between the fireproof cover plate 2.3 and the diversion plate 3, the elastic driving mechanism can be a spring assembly, the elastic driving mechanism drives the fireproof cover plate 2.3 to rotate when the fuse link is fractured, so that the diversion channel 2.3 can close the diversion channel 2.2, a separation blade 2.6 corresponding to the fireproof cover plate 2.3 is arranged on the inner wall of the diversion channel 2.2.2, and the separation blade 2.6 is positioned on the rotation stroke of the fireproof cover plate 2.3, when fire-proof cover plate 2.3 rotated under elastic drive mechanism's drive, separation blade 2.6 can realize blockking and the restriction to fire-proof cover plate 2.3 to make fire-proof cover plate 2.3 close water conservancy diversion passageway 2.2, so in the in-service use, when the condition of a fire appeared in the exhaust passage of sharing, along with the rising of temperature, temperature sensing element 2.4 broke, thereby water conservancy diversion passageway 2.2 is closed in the rotation of elastic drive mechanism's effect to protective cover plate 2.3.
In this embodiment, the flow guiding plate 3 forms an arc-shaped section of the flow guiding body 2, the end of the horizontal section 2.1 is provided with an arc-shaped connecting end 2.5, the flow guiding plate 3 comprises an arc-shaped plate 3.1 and arc-shaped side plates 3.2 positioned at two sides of the arc-shaped plate 3.1, the arc-shaped side plates 3.2 can be attached and fixed on the inner wall of the arc-shaped connecting end 2.5, the adjusting structure 4 is arranged between the arc-shaped side plates 3.2 and the arc-shaped connecting end 2.5 to realize the fixation between the arc-shaped side plates 3.2 and the side walls of the arc-shaped connecting end 2.5, the adjusting structure 4 can be formed by arranging a plurality of fixing holes 4.2 on the arc-shaped side plates 3.2, the fixing screw holes 4.1 are correspondingly arranged on the side walls of the arc-shaped connecting end 2.5, the fixing screw holes 4.1 and the fixing holes 4.2 are fixedly connected through screws, so that when different fixing holes 4.2 correspond to the fixing screw holes 4.1, the angles of the arc-shaped plate 3.1 and the horizontal section 2 are different, thus realizing the adjustment of the angle of the flow guiding plate 3, the structure of adjusting 4 also can be other can realize carrying out the structure adjusted to arc plate 3.1's installation angle, for example realize being connected between arc plate 3.1 and the horizontal segment 2.1 through adjustable arc connecting piece to the operation requirement of adaptation different floors and different flues realizes all can installing in the flue of not unidimensional, reaches each floor exhaust equilibrium about reaching simultaneously, has strengthened the practicality of product.
In this embodiment, horizontal segment 2.1 swing joint of baffle 2 is in valve body passageway 1.1, thereby make horizontal segment 2.1 be located the length of sharing exhaust passage and can adjust, it is further, whole horizontal segment 2.1 can all slide and collect to the inside of valve body passageway 1.1, sliding connection subassembly 5 is used for realizing the fixed connection between horizontal segment 2.1 and the valve body 1, make horizontal segment 2.1 after the length adjustment can fixed connection in the inside of valve body 1, sliding connection subassembly 5 can be the telescopic link that length can be adjusted, also can be the link structure, make the whole size of adjustable check valve can adjust, thereby adapt to the operation requirement of different floors and different flues, realize all can installing in the flue of different sizes, reach each floor exhaust equilibrium about reaching simultaneously, the practicality of product has been strengthened.
The embodiment of the utility model provides an adjustable check valve, including valve body 1, baffle 2 and sliding connection subassembly 5, the hollow valve body passageway 1.1 that forms in valve body 1, the valve block 1.2 is rotated in valve body passageway 1.1; baffle 2 includes inside hollow horizontal segment 2.1 and segmental arc, horizontal segment 2.1 and segmental arc are connected and are formed diversion channel 2.2, be provided with protective cover 2.3 in the diversion channel 2.2, through with protective cover 2.3 and valve block 1.2 independent setting respectively, valve block 1.2 sets up frivolous be convenient for can open in a flexible way under the air current of range hood or air discharge fan blows, promote the emission effect of flue gas, protective cover 2.3 can keep the leakproofness in conflagration high temperature environment, promote the safety of preventing fires.
The embodiment of the utility model provides a check valve with adjustable, the segmental arc includes guide plate 3, guide plate 3 is connected with horizontal segment 2.1 through adjusting structure 4, so can adjust guide plate 3's installation angle through adjusting structure 4, can adjust the length that baffle 2 is located the exhaust passage of sharing through sliding connection assembly 5, so realize adjusting the holistic size of check valve through sliding connection assembly 5 and regulation structure 4, make the check valve can install in the district flue of difference, the area that occupies the flue is little, from the smoke exhaust effect that does not influence the flue.
In this embodiment, preferred, the one end that horizontal segment 2.1 and arc section are connected is provided with arc link 2.5, arc link 2.5 and horizontal segment 2.1 formula structure as an organic whole, and the terminal surface of arc link 2.5 is arc flexion, adjusts structure 4 and sets up on arc link 2.5, so can realize adjusting arc plate 3.1's installation angle through adjusting structure 4.
In this embodiment, preferably, the adjusting structure 4 includes an arc-shaped fixing plate 4.3 and an arc-shaped locking strip 4.4, a fixing member capable of fixing the arc-shaped fixing plate 4.3 is disposed on the side wall of the arc-shaped connecting end 2.5, and the arc-shaped locking strip 4.4 is fixedly connected to the arc-shaped section; at least three first sawtooth parts 4.7 are arranged on the arc-shaped locking strip 4.4, and second sawtooth parts 4.5 are correspondingly arranged on the arc-shaped fixing plate 4.3; first sawtooth portion 4.7 and second sawtooth portion 4.5 match the setting each other, so through the second sawtooth portion 4.5 and the mutual block of first sawtooth portion 4.7 with the difference, thereby the realization is adjusted arc plate 3.1's installation angle, so first sawtooth portion 4.7 and second sawtooth portion 4.5 all have 5, then arc plate 3.1 theoretically has 9 different installation angle and adjusts, can satisfy the needs of in-service use.
In this embodiment, preferably, the fixing member includes at least three fixing screw holes 4.1 and fixing bolts, and the arc-shaped fixing plate 4.3 is provided with fixing holes 4.2 corresponding to the fixing screw holes 4.1; so through corresponding with fixed orifices 4.2 and different fixed screw 4.1, thereby make the installation angle of arc 3.1 can be different, so in the in-service use process, can be as required, be connected fixed orifices 4.2 with corresponding fixed screw 4.1 through fixing bolt, thereby make the installation angle of arc 3.1 different, the regulation of the mounted position of reunion first sawtooth portion 4.7 and second sawtooth portion 4.5, thereby make the installation angle of arc 3.1 can be adjusted in a great scope.
In this embodiment, preferably, a locking member is further disposed between the arc-shaped locking strip 4.4 and the arc-shaped fixing plate 4.3, and the locking member can fix the second serration 4.5 on any one of the first serration 4.7; the locking piece is provided with arc locking groove 4.6 including setting up the stop pin on arc locking strip 4.4 on arc fixed plate 4.3, thereby the stop pin can insert in arc locking groove 4.6 and realize the arc locking strip 4.4 and arc fixed plate 4.3 between fixed.
In this embodiment, preferably, the sliding connection assembly 5 includes a fixing ring, the fixing ring includes an inner ring body 5.1, an outer ring body 5.2 and an annular connecting plate 5.4 connecting the inner ring body 5.1 and the outer ring body 5.2, the annular connecting plate 5.4 is located at one end of the outer ring body 5.2 far away from the horizontal section 2.1, and an annular locking groove 5.3 for embedding the end of the horizontal section 2.1 is formed between the inner ring body 5.1 and the outer ring body 5.2; an annular locking plate may be provided at the end of the horizontal section 2.1 to mate with the annular locking groove 5.3.
In this embodiment, preferably, the side wall of the valve body passage 1.1 is provided with a sliding groove 5.5, the outer ring body 5.2 is provided with a sliding strip 5.7, and the sliding strip 5.7 is slidably connected in the sliding groove 5.5; a positioning piece 5.6 is arranged between the sliding groove 5.5 and the sliding strip 5.7, and the positioning piece 5.6 can fix the sliding strip 5.7 at any position of the sliding groove 5.5; the setting element 5.6 can be locating pin or location hasp, be provided with bar locking groove 5.9 along its length direction in sliding tray 5.5, in the in-service use in-process, at first adjust horizontal segment 2.1 and be located the outer length of valve body passageway 1.1, make the holistic size of check valve suitable, then drive sliding strip 5.7 slides along sliding tray 5.5, make horizontal segment 2.1's tip embedding and block fix in annular locking groove 5.3, realize the fixed connection between horizontal segment 2.1 and the sliding connection subassembly 5, the rethread presses setting element 5.6, make setting element 5.6 fix in bar locking groove 5.9, accomplish the fixed connection between sliding connection subassembly 5 and the valve body 1.
In this embodiment, it is preferred, annular locking groove 5.3's lateral wall is provided with first magnetism along circumference and inhales portion 5.8, is provided with the second magnetism on the lateral wall of horizontal segment 2.1 tip and inhales the portion, and the magnetism of first magnetism portion 5.8 and second magnetism portion of inhaling is inhaled differently, and first magnetism portion 5.8 and second magnetism portion of inhaling all has two at least, inhales portion 5.8 and second magnetism and makes horizontal segment 2.1's tip can fixed restriction in annular locking groove 5.3's inside through first magnetism.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. An adjustable check valve, comprising:
the valve body is hollow inside to form a valve body channel, one end of the valve body channel is communicated with the exhaust port, the other end of the valve body channel is communicated with the air inlet of the shared exhaust passage, and a valve plate is rotatably arranged in the valve body channel;
the flow guide body comprises a horizontal section and an arc-shaped section which are hollow inside, the horizontal section and the arc-shaped section are connected to form a flow guide channel, one end of the flow guide channel is communicated with the valve body channel, the other end of the flow guide channel is positioned in the common exhaust passage, and a protective cover plate is arranged in the flow guide channel;
the arc-shaped section comprises a guide plate, the guide plate comprises a connecting end and a free end, the connecting end is rotatably connected to the horizontal section, and the free end is connected with the horizontal section through an adjusting structure so as to adjust the installation angle of the guide plate;
sliding connection subassembly, the tip sliding connection of baffle is in the valve body passageway, sliding connection subassembly sets up in the valve body passageway, be used for to being located baffle in the valve body passageway is fixed.
2. The check valve of claim 1, wherein an arcuate connection end is disposed at an end of the horizontal segment connected to the arcuate segment, the adjustment structure being disposed at the arcuate connection end.
3. The check valve of claim 2, wherein the adjusting structure comprises an arc-shaped fixing plate and an arc-shaped locking strip, a fixing member for fixing the arc-shaped fixing plate is disposed on a side wall of the arc-shaped connecting end, and the arc-shaped locking strip is fixedly connected to the arc-shaped section.
4. The check valve of claim 3, wherein the arcuate locking bar has at least three first serrations formed thereon and the arcuate retaining plate has a corresponding second serration formed thereon.
5. The check valve of claim 3, wherein the fixing member includes at least three fixing screw holes and fixing bolts, and the arc-shaped fixing plate is provided with fixing holes corresponding to the fixing screw holes.
6. The check valve of claim 4, further comprising a locking member disposed between the arc-shaped locking bar and the arc-shaped fixing plate, wherein the locking member can fix the second saw-toothed portion to any one of the first saw-toothed portions.
7. The check valve of claim 6, wherein the locking member includes a locking pin provided on the arc locking bar, and the arc fixing plate is provided with an arc locking groove, the locking pin being insertable into the arc locking groove to achieve the fixing between the arc locking bar and the arc fixing plate.
8. The check valve of claim 1, wherein the sliding connection assembly includes a fixing ring including an inner ring body, an outer ring body, and an annular connecting plate connecting the inner ring body and the outer ring body, and an annular locking groove into which the end of the horizontal section is inserted is formed between the inner ring body and the outer ring body.
9. The check valve of claim 8, wherein a sliding groove is formed on a sidewall of the valve body passage, and a sliding bar is disposed on the outer ring body, the sliding bar being slidably coupled in the sliding groove;
a positioning piece is arranged between the sliding groove and the sliding strip, and the sliding strip can be fixed at any position of the sliding groove by the positioning piece.
10. The check valve of claim 9, wherein a first magnetic attraction portion is circumferentially disposed on a sidewall of the annular locking groove, a second magnetic attraction portion is disposed on a sidewall of the horizontal section end portion, and the first magnetic attraction portion and the second magnetic attraction portion have different magnetism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121317287.2U CN215258005U (en) | 2021-06-11 | 2021-06-11 | Adjustable check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121317287.2U CN215258005U (en) | 2021-06-11 | 2021-06-11 | Adjustable check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215258005U true CN215258005U (en) | 2021-12-21 |
Family
ID=79478974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121317287.2U Active CN215258005U (en) | 2021-06-11 | 2021-06-11 | Adjustable check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215258005U (en) |
-
2021
- 2021-06-11 CN CN202121317287.2U patent/CN215258005U/en active Active
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