CN207161790U - A kind of check-valves with two stage non-return effect - Google Patents

Abstract

The utility model discloses a kind of check-valves with two stage non-return effect, including valve body, the inside of the valve body offers cavity, once non-return mechanism and secondary non-return mechanism is fixedly mounted in the inside of cavity successively from left to right, one time non-return mechanism includes housing, the inside of housing offers the first L-shaped cavity, the side of first cavity inner wall is inlaid with fixed block, side of the fixed block away from the first cavity inner wall opens up fluted, the inside of groove is installed with fixing axle, the surface of fixing axle is socketed with rotor plate, simultaneously the inside of groove and baffle plate is installed with above the rotor plate.The cooperation that the utility model passes through the first non-return mechanism of setting and secondary non-return mechanism, it can be stopped when fluid moves to the right from the left side of valve body by the first non-return mechanism, and if fluid can then be stopped through the first non-return mechanism by the second non-return mechanism, so as to reach the effect of secondary non-return, make non-return effect more preferable.

Description

A kind of check-valves with two stage non-return effect

Technical field

It the utility model is related to check-valves technical field, specially a kind of check-valves with two stage non-return effect.

Background technology

Check-valves refers to flow in itself by medium and automatic open and close flap, for preventing the valve of medium refluence, also known as Non-return valve, check valve, reflux valve and counterbalance valve.Check-valves belongs to a kind of automatic valve, and its main function is to prevent medium from falling Flow, prevent pump and drive motor from inverting, and vessel media is released.

But check-valves in the market is most of can only all to carry out a non-return, non-return effect is poor, if non-return When mechanism goes wrong, the situation of fluid reflux easily occurs, or fluid also easily occurs under non-return mechanism normal condition and leads to There is situation about flowing back in the space crossed between non-return mechanism.

Utility model content

The purpose of this utility model is to provide a kind of check-valves with two stage non-return effect possess the excellent of two stage non-return Point, solves that the check-valves in the market mentioned in background technology is most of can only all to carry out a non-return, non-return effect It is poor, if non-return mechanism goes wrong, the situation of fluid reflux easily occurs, or also hold under non-return mechanism normal condition Fluid easily occurs and the problem of situation about flowing back occurs by the space between non-return mechanism.

To achieve the above object, the utility model provides following technical scheme：A kind of non-return with two stage non-return effect Valve, including valve body, the inside of the valve body offer cavity, and once non-return is fixedly mounted in the inside of cavity successively from left to right Mechanism and secondary non-return mechanism.

Non-return mechanism includes housing, and the inside of housing offers the first L-shaped cavity, and the one of the first cavity inner wall Side is inlaid with fixed block, and side of the fixed block away from the first cavity inner wall opens up fluted, and the inside of groove is installed with Dead axle, the surface of fixing axle are socketed with rotor plate, while the inside of groove and are installed with gear above rotor plate Plate, and rubber blanket is provided with the top of rotor plate, the top of rubber blanket contacts with the bottom of baffle plate.

Secondary non-return mechanism includes body, and the inside of body offers the second cavity, and the second cavity is in Z-shaped, and second The inside of cavity is installed with check plate, and the surface of check plate offers circular port, and fixed at the top of the inwall of the second cavity It is provided with above check plate and is installed with expansion link, the bottom of expansion link is fixedly connected with the top of spheroid, and spheroid Bottom is through circular port and extends to the lower section of check plate.

Preferably, it is provided with torque spring between the rotor plate and fixing axle.

Preferably, the outer surface of the spheroid contacts with the inwall of circular port, and spheroid is by circular hole plug.

Preferably, the expansion link includes fix bar, and the internal slide of fix bar is provided with mobile bar, and the bottom of mobile bar Portion passes the bottom of fix bar and with being fixedly connected at the top of spheroid.

Preferably, the spheroid and check plate are arranged at the center of the second cavity, and check plate makes with spheroid cooperation Second cavity blocks.

Preferably, the both sides of the valve body are provided with the conduit connected with valve body.

Compared with prior art, the beneficial effects of the utility model are as follows：

1st, the utility model is by setting a non-return mechanism, when fluid is from the top of the first cavity to the right side of the first cavity Pressure can be such that rotated version is rotated clockwise when side moves, and if fluid from the left side of the first cavity to the first chamber When being moved at the top of body, rotor plate can be stopped by baffle plate and prevent fluid from flowing through, so as to reach primary non-return effect.

2nd, the utility model is by setting secondary non-return mechanism, when fluid is carried out to the left from the right side of the second non-return mechanism When mobile can regular spheroid, spheroid is increased, and shrink expansion link simultaneously, so as to by the circular port on check plate through stopping Plate is returned and by the second non-return mechanism, if can pressure meeting when fluid moves to the right from the left side of the second non-return mechanism Decline spheroid and block check plate, so as to can not be by, reach the effect of secondary non-return.

3rd, the utility model is by setting the cooperation of the first non-return mechanism and secondary non-return mechanism, when fluid is from a left side for valve body Lateral right side can stop when moving by the first non-return mechanism, and if fluid then can be by the through the first non-return mechanism Two non-return mechanisms are stopped, so as to reach the effect of secondary non-return, make non-return effect more preferable.

Brief description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the internal mechanism schematic diagram of the utility model valve body；

Fig. 3 is the section of structure of the non-return mechanism of the utility model first；

Fig. 4 is the section of structure of the utility model fixed block；

Fig. 5 is the section of structure of the non-return mechanism of the utility model second；

Fig. 6 is the structural representation of the utility model check plate；

Fig. 7 is the section of structure of the utility model expansion link.

In figure：It is 1 valve body, 2 conduits, 3 cavitys, 4 non-return mechanisms, 41 housings, 42 first cavitys, 43 fixed blocks, 44 recessed Groove, 45 fixing axles, 46 rotor plates, 47 baffle plates, 48 rubber blankets, 5 two non-return mechanisms, 51 bodys, 52 second cavitys, 53 non-returns Plate, 54 circular ports, 55 spheroids, 56 expansion links, 561 fix bars, 562 mobile bars.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1-7, a kind of check-valves with two stage non-return effect, including valve body 1, the both sides of valve body 1 are referred to be respectively provided with There is the conduit 2 connected with valve body 1, the inside of valve body 1 offers cavity 3, and the inside of cavity 3 is installed with successively from left to right Non-return mechanism 4 and secondary non-return mechanism 5, by setting conduit 2, fluid is set to enter to locate valve body 1, meanwhile, pass through setting The cooperation of non-return mechanism 4 and secondary non-return mechanism 5, can be by when fluid moves to the right from the left side of valve body 1 One non-return mechanism stopped, and if fluid can then be stopped through the first non-return mechanism by the second non-return mechanism, so as to reach To the effect of secondary non-return.

Non-return mechanism 4 includes housing 41, and the inside of housing 41 offers the first L-shaped cavity 42, the first cavity The side of 42 inwalls is inlaid with fixed block 43, and side of the fixed block 43 away from the inwall of the first cavity 42 opens up fluted 44, groove 44 inside is installed with fixing axle 45, and the surface of fixing axle 45 is socketed with rotor plate 46, rotor plate 46 and fixing axle 45 it Between be provided with torque spring, by setting torque spring, make the keep level state of rotor plate 46 in the absence of external forces, together When groove 44 inside and be installed with baffle plate 47 positioned at the top of rotor plate 46, and the top of rotor plate 46 is provided with rubber Rubber cushion 48, by setting rubber blanket 48, so as to stop that rotor plate 46 is rotated counterclockwise, while the sealing effectiveness of rubber blanket 48 It is good, prevent fluid from being flowed through by the space between baffle plate 47 and rotor plate 46, the top and the bottom of baffle plate 47 of rubber blanket 48 connect Touch, by setting a non-return mechanism 4, when fluid moves from the top of the first cavity 42 to the right side of the first cavity 42 Pressure can be such that rotated version is rotated clockwise, and if fluid from the left side of the first cavity 42 to the top of the first cavity 42 When moving, rotor plate 46 can be stopped by baffle plate 47 and prevent fluid from flowing through, so as to reach primary non-return effect.

Secondary non-return mechanism 5 includes body 51, and the inside of body 51 offers the second cavity 52, and the second cavity 52 is in Z-shaped Type, and the inside of the second cavity 52 is installed with check plate 53, the surface of check plate 53 offers circular port 54, and the second chamber The top that check plate 53 is installed with the top of the inwall of body 52 is installed with expansion link 56, the bottom of expansion link 56 and spheroid 55 top is fixedly connected, and stating expansion link 56 includes fix bar 561, and the internal slide of fix bar 561 is provided with mobile bar 562, And the bottom of mobile bar 562 passes the bottom of fix bar 561 and is fixedly connected with the top of spheroid 55, and the bottom of spheroid 55 is worn Cross circular port 54 and extend to the lower section of check plate 53, the outer surface of spheroid 55 contacts with the inwall of circular port 54, and spheroid 55 block circular port 54, and spheroid 55 and check plate 53 are arranged at the center of the second cavity 52, and check plate 53 and spheroid 55 coordinate block the second cavity 52, by setting secondary non-return mechanism 5, when fluid from the right side of the second non-return mechanism to the left When moving can regular spheroid 55, spheroid 55 is increased, and simultaneously shrink expansion link 56, so as to by check plate 53 Circular port 54 is through check plate 53 and by the second non-return mechanism, if when fluid enters to the right from the left side of the second non-return mechanism Row it is mobile when can pressure can decline spheroid 55 and block check plate 53, so as to can not be by, reach the effect of secondary non-return.

In summary：The utility model by setting the cooperation of the first non-return mechanism and secondary non-return mechanism 5, when fluid from The left side of valve body 1 can stop when moving to the right by the first non-return mechanism, and if fluid pass through the first non-return machine Structure can then be stopped by the second non-return mechanism, so as to reach the effect of secondary non-return, make non-return effect more preferable.

It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row His property includes, so that process, method, article or equipment including a series of elements not only include those key elements, and And also include the other element being not expressly set out, or also include for this process, method, article or equipment institute inherently Key element.

While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of check-valves with two stage non-return effect, including valve body (1), it is characterised in that：Open the inside of the valve body (1) Provided with cavity (3), once non-return mechanism (4) and secondary non-return mechanism is fixedly mounted in the inside of cavity (3) successively from left to right (5)；

Non-return mechanism (4) includes housing (41), and the inside of housing (41) offers L-shaped the first cavity (42), and first The side of cavity (42) inwall is inlaid with fixed block (43), and side of the fixed block (43) away from the first cavity (42) inwall offers Groove (44), the inside of groove (44) are installed with fixing axle (45), and the surface of fixing axle (45) is socketed with rotor plate (46), Simultaneously the inside of groove (44) and baffle plate (47), and the top of rotor plate (46) are installed with above the rotor plate (46) Portion is provided with rubber blanket (48), and the top of rubber blanket (48) contacts with the bottom of baffle plate (47)；

Secondary non-return mechanism (5) includes body (51), and the inside of body (51) offers the second cavity (52), the second cavity (52) Check plate (53) is installed with the inside of Z-shaped, and the second cavity (52), the surface of check plate (53) offers circular port (54), and it is installed with the top of the inwall of the second cavity (52) above check plate (53) and is installed with expansion link (56), The bottom of expansion link (56) is fixedly connected with the top of spheroid (55), and the bottom of spheroid (55) through circular port (54) and extends To the lower section of check plate (53).

A kind of 2. check-valves with two stage non-return effect according to claim 1, it is characterised in that：The rotor plate (46) it is provided with torque spring between fixing axle (45).

A kind of 3. check-valves with two stage non-return effect according to claim 1, it is characterised in that：The spheroid (55) Outer surface contacted with the inwall of circular port (54), and spheroid (55) by circular port (54) block.

A kind of 4. check-valves with two stage non-return effect according to claim 1, it is characterised in that：The expansion link (56) fix bar (561) is included, the internal slide of fix bar (561) is provided with mobile bar (562), and the bottom of mobile bar (562) Portion passes the bottom of fix bar (561) and with being fixedly connected at the top of spheroid (55).

A kind of 5. check-valves with two stage non-return effect according to claim 1, it is characterised in that：The spheroid (55) it is arranged at check plate (53) at the center of the second cavity (52), and check plate (53) makes second with spheroid (55) cooperation Cavity (52) blocks.

A kind of 6. check-valves with two stage non-return effect according to claim 1, it is characterised in that：The valve body (1) Both sides be provided with the conduit (2) connected with valve body (1).