Composite exhaust valve

Abstract

The utility model discloses a composite exhaust valve which comprises a valve body, a valve cover is installed on the upper side of the valve body, a lifting cover is arranged at the upper end of the inner wall of the valve body, a floating ball is connected in the lifting cover in a sliding mode, air holes which are evenly distributed are formed in the inner wall of the lifting cover, and the composite exhaust valve further comprises a fast assembly mechanism. The quick assembly mechanism comprises an annular seat, connecting seats and an arc-shaped mounting groove, the annular seat is arranged at the upper end of the outer side of the valve body, and the six uniformly distributed connecting seats are arranged on the inner wall of the annular seat. Therefore, the valve body and the valve cover of the composite exhaust valve can be quickly installed and fixed without bolts, operation is convenient, meanwhile, the annular air guide seat is arranged, airflow flowing in the exhaust process of the device is disturbed, and the exhaust efficiency of the device is improved. And the situation that the exhaust part of the valve deck is blocked due to the fact that the floating ball is driven to move upwards due to overhigh gas flow rate in the high-speed exhaust process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhaust valve technical field, concretely is a kind of composite exhaust valve. BACKGROUND

[0002] Exhaust valve is mainly installed at the high point of water delivery pipeline for the gas in pipeline, when gas overflow on water delivery pipeline, gas will climb up along pipeline and enter the upper part of exhaust valve cavity, with the increase of gas in valve, pressure rises, when gas pressure is greater than system pressure, gas will make cavity water surface drop, float ball drops along with water level, opens exhaust port;After gas is exhausted, water level rises, movable block also rises, closes exhaust port, in prior art: the patent with authorized publication number CN 218935299 U discloses a kind of composite exhaust valve, comprising: valve body, the inner cavity is opened in the valve body;Valve cover, the valve cover is arranged on the top of valve body, the guide hole is opened in the valve cover, the bottom of the valve cover is equipped with flange;Exhaust hood, the exhaust hood is arranged on the valve cover, the exhaust hood is compatible with the valve cover, the exhaust hood is connected with the valve cover by first bolt;Guide rod piston, the guide rod piston is slidably installed on the guide hole, the bottom end of the guide rod piston extends into the inner cavity and is slidably connected with the valve body;Sealing ring, the sealing ring is arranged on the inner side below the valve cover flange, the sealing ring is compatible with the flange, the sealing ring is connected with the valve cover by screw, the composite exhaust valve provided by the utility model has the advantages of stable working state, safety and reliability and strong exhaust function, however, the device is connected and fixed between valve cover and valve body by multiple bolts, and it needs to be connected one by one by external tool in bolt connection operation process, so the operation is more cumbersome, therefore, we propose a kind of composite exhaust valve. UTILITARIAN CONTENT

[0003] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a composite exhaust valve, which only needs to rotate the valve cover, and realizes the quick installation and fixation between the valve body and the valve cover of the composite exhaust valve by rotating and sliding between the components and clamping fixation, without the need for bolt fixation, so the operation is convenient, and the device disturbs the airflow flow during the exhaust process by being provided with the annular air guide seat, avoids the plugging of the exhaust part of the valve cover due to the upward movement of the floating ball caused by the excessive airflow speed during the high-speed exhaust process, and effectively solves the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of composite exhaust valve, including valve body, the upper side of the valve body is equipped with valve cover, the inner wall upper end of valve body is equipped with lift cover, floating ball is slidably connected in the inside of lift cover, the inner wall of lift cover is equipped with the evenly distributed air hole, still include quick -mounting mechanism;

[0005] The quick mounting mechanism comprises a ring-shaped seat, connecting seats and arc-shaped mounting grooves, the ring-shaped seat is arranged on the outer side of the upper end of the valve body, the inner wall of the ring-shaped seat is provided with six uniformly distributed connecting seats, the outer side of the lower end of the valve cover is provided with six uniformly distributed arc-shaped mounting grooves, and the arc-shaped mounting grooves are mounted in cooperation with the adjacent connecting seats, the device only needs to rotate the valve cover, and the quick mounting and fixing between the valve body and the valve cover of the composite exhaust valve are realized through the rotating guide sliding and clamping fixing between the components, the operation is convenient, meanwhile, the device disturbs the airflow flow during the exhaust process through the arrangement of the ring-shaped air guide seat, and the exhaust part of the valve cover is prevented from being blocked due to the upward movement of the floating ball caused by the excessively large gas flow rate during the high-speed exhaust process.

[0006] Further, the upper side of the floating cover is provided with a ring-shaped air guide seat, which prevents the exhaust part of the valve cover from being blocked due to the upward movement of the floating ball caused by the excessively large gas flow rate during the high-speed exhaust process.

[0007] Further, the quick mounting mechanism further comprises telescopic columns, springs and limiting seats, the limiting seats are respectively slidably connected to the interiors of the connecting seats, the telescopic columns and the springs are arranged between the connecting seats and the adjacent limiting seats, and the springs are movably sleeved with the outer ends of the adjacent telescopic columns, so as to prevent the installation between the valve cover and the valve body in the composite exhaust valve from being retreated.

[0008] Further, the quick mounting mechanism further comprises rotating shafts and intercepting seats, the rotating shafts are respectively rotatably connected to the upper sides of the connecting seats through bearings, the upper ends of the rotating shafts are provided with the intercepting seats, and the intercepting seats are mounted in cooperation with the adjacent limiting seats, so as to limit the exposure of the limiting seats in the composite exhaust valve to the upper side of the connecting seat.

[0009] Further, the outer side of the upper end of the valve cover is provided with four uniformly distributed filter screens, which filter impurities in the gas entering the composite exhaust valve.

[0010] Further, the inner wall of the valve body is provided with a connecting pipe, the upper end of the connecting pipe is provided with a gas pressure gauge, and the upper right end of the connecting pipe is connected with a control valve, so that the staff can intuitively observe the gas pressure in the composite exhaust valve.

[0011] Further, the upper side of the valve body and the lower side of the valve cover are provided with ring-shaped grooves, and a rubber sealing ring is arranged between the ring-shaped grooves, so as to improve the sealing performance of the connecting part between the valve cover and the valve body in the composite exhaust valve.

[0012] Compared with the prior art, the composite exhaust valve has the following advantages:

[0013] 1. When using the composite exhaust valve, through the annular seat, connecting seat, telescopic column, spring, limit seat, arc-shaped mounting groove, rotating shaft and intercepting seat, only the valve cover is rotated, the relative rotation between the components is guided to slide and clamped and fixed, so that the quick installation and fixation between the valve body and the valve cover of the composite exhaust valve is realized, without the need of bolts, and the operation is convenient.

[0014] 2. When using the composite exhaust valve, by setting the annular air guide seat, the airflow during the exhaust process of the device is disturbed, and the exhaust part of the valve cover is prevented from being blocked by the upward movement of the floating ball due to the excessive gas flow rate during the high-speed exhaust process. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic diagram of the utility model;

[0016] Figure 2 is a sectional structure schematic diagram of the utility model;

[0017] Figure 3 is a split structure schematic diagram of the utility model;

[0018] Figure 4 is a connecting seat structure schematic diagram of the utility model;

[0019] Figure 5 is an enlarged structure schematic diagram of A of the utility model.

[0020] In the figure: 1 valve body, 2 valve cover, 3 floating cover, 4 floating ball, 5 air hole, 6 annular air guide seat, 7 quick installation mechanism, 71 annular seat, 72 connecting seat, 73 telescopic column, 74 spring, 75 limit seat, 76 arc-shaped mounting groove, 77 rotating shaft, 78 intercepting seat, 8 filter screen, 9 connecting pipe, 10 air pressure gauge, 11 control valve, 12 rubber sealing ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] Please refer to Figures 1-5The embodiment provides a technical scheme: a composite exhaust valve, which comprises a valve body 1, a valve cover 2 is arranged on the upper side of the valve body 1, a lifting cover 3 is arranged on the inner wall upper end of the valve body 1, a floating ball 4 is slidably connected in the lifting cover 3, a plurality of air holes 5 are arranged on the inner wall of the lifting cover 3, an annular air guide seat 6 is arranged on the upper side of the lifting cover 3, four filter screens 8 are arranged on the outer side upper end of the valve cover 2, a connecting pipe 9 is arranged on the inner wall of the valve body 1, an air pressure gauge 10 is arranged on the upper end of the connecting pipe 9, and a control valve 11 is connected in series on the upper right end of the connecting pipe 9. When the pressure difference between the internal pipeline and the external environment appears in the use process of the composite exhaust valve, the floating ball 4 in the composite exhaust valve changes along with the internal and external pressure difference and slides along the lifting cover 3, so that the through hole in the middle of the valve cover 2 is exposed, the internal pipeline is connected with the external environment through the air holes 5 and the through hole in the middle of the valve cover 2, so as to balance the pressure difference and realize the exhaust effect. The filter screen 8 is used for filtering impurities of the gas entering the device, the control valve 11 is opened, so that the connecting pipe 9 is connected with the inside of the valve body 1, the air pressure in the valve body 1 is measured through the air pressure gauge 10, and the staff can intuitively understand. When high-speed exhaust appears in the device, the gas flow moves upwards along the lifting cover 3 through the air holes 5, the gas flow at the inner edge of the lifting cover 3 enters the inside of the annular air guide seat 6 and flows downwards along the inner arc surface of the annular air guide seat 6, the gas flow in the lifting cover 3 is disturbed, so that the gas flow speed of the high-speed exhaust of the device is controlled, so that the gas flow speed is too large in the high-speed exhaust process, the floating ball 4 is driven to move upwards, the through hole in the middle of the valve cover 2 is blocked, the device is provided with the annular air guide seat 6, the gas flow in the exhaust process of the device is disturbed, the floating ball is driven to move upwards in the high-speed exhaust process, the exhaust part of the valve cover is blocked, and the quick mounting mechanism 7 is further arranged.

[0023] The quick mounting mechanism 7 comprises an annular seat 71, a connecting seat 72 and an arc-shaped mounting slot 76. The annular seat 71 is arranged on the outer side of the upper end of the valve body 1. The inner wall of the annular seat 71 is provided with six uniformly distributed connecting seats 72. The outer side of the lower end of the valve cover 2 is provided with six uniformly distributed arc-shaped mounting slots 76. The arc-shaped mounting slots 76 are all mounted in cooperation with the adjacent connecting seats 72. The quick mounting mechanism 7 further comprises telescopic columns 73, springs 74 and limiting seats 75. The limiting seats 75 are all slidingly connected to the inner sides of the connecting seats 72. The connecting seats 72 and the adjacent limiting seats 75 are all provided with the telescopic columns 73 and the springs 74. The springs 74 are all movably sleeved with the outer ends of the adjacent telescopic columns 73. The quick mounting mechanism 7 further comprises rotating shafts 77 and intercepting seats 78. The rotating shafts 77 are all rotatably connected to the upper sides of the connecting seats 72 through bearings. The upper ends of the rotating shafts 77 are all provided with the intercepting seats 78. The intercepting seats 78 are all mounted in cooperation with the adjacent limiting seats 75. The upper side of the valve body 1 and the lower side of the valve cover 2 are both provided with annular grooves. A rubber sealing ring 12 is arranged between the annular grooves. When the valve cover 2 of the composite exhaust valve is mounted, the lower end of the arc-shaped mounting slot 76 of the valve cover 2 is first vertically aligned with the connecting seat 72. Then, the valve cover 2 is vertically moved downwards, so that the connecting seat 72 enters the lower end vertical slot of the corresponding arc-shaped mounting slot 76. At this time, the limiting seat 75 in the connecting seat 72 is pressed into the corresponding connecting seat 72 by the wall of the arc-shaped mounting slot 76. The telescopic end of the telescopic column 73 and the spring 74 are contracted, so as to avoid the interference of the limiting seat 75 on the subsequent connecting seat 72 along the arc-shaped mounting slot 76. Then, the valve cover 2 is horizontally rotated clockwise. The connecting seat 72 slides along the middle arc-shaped groove of the corresponding arc-shaped mounting slot 76. In this process, the valve cover 2 is close to and tightened to the valve body 1 by the sliding of the connecting seat 72 along the corresponding part of the arc-shaped mounting slot 76. When they are completely tightened, the upper side of the connecting seat 72 is vertically aligned with the upper end vertical slot of the arc-shaped mounting slot 76. Then, the limiting seat 75 is slid along the upper end vertical slot wall of the corresponding arc-shaped mounting slot 76 by the compression reset force of the spring 74. The limiting seat 75 is limited from sliding reversely along the arc-shaped mounting slot 76 by the sliding clamping of the side surface of the limiting seat 75 and the upper end vertical slot wall of the arc-shaped mounting slot 76. The valve cover 2 of the composite exhaust valve is conveniently and quickly mounted. When the valve cover 2 and the valve body 1 are separated, the limiting seat 75 is only needed to be pressed downwards to make it deeply enter the corresponding connecting seat 72. Then, the intercepting seat 78 is rotated around the rotating shaft 77 to be above the adjacent limiting seat 75, so as to limit the upward movement of the limiting seat 75 along the connecting seat 72. Then, the valve cover 2 is reversed to separate the valve cover 2 from the valve body 1. The rubber sealing ring 12 improves the connection sealing effect between the connecting parts of the valve cover 2 and the valve body 1. The device only needs to rotate the valve cover 2 to realize the quick mounting and fixing of the valve body 1 and the valve cover 2 of the composite exhaust valve by the rotating guiding sliding and clamping fixing of the components. The device does not need to be realized by bolts. The operation is convenient.

[0024] The working principle of the composite exhaust valve is as follows: when the valve cover 2 of the composite exhaust valve is installed, the lower end vertical slot of the arc-shaped mounting groove 76 on the valve cover 2 is vertically aligned with the connecting seat 72, then the valve cover 2 is vertically moved downward, so that the connecting seat 72 enters the uppermost end of the corresponding arc-shaped mounting groove 76, at this time the limiting seat 75 in the connecting seat 72 is extruded by the wall body of the arc-shaped mounting groove 76 and enters the corresponding connecting seat 72, the telescopic end of the telescopic column 73 and the spring 74 are retracted, so as to avoid the interference of the limiting seat 75 on the subsequent connecting seat 72 along the arc-shaped mounting groove 76 sliding, then the valve cover 2 is horizontally rotated clockwise, the connecting seat 72 slides along the middle arc-shaped groove of the corresponding arc-shaped mounting groove 76, in this process, the connecting seat 72 slides along the corresponding part of the arc-shaped mounting groove 76, so that the lower side of the valve cover 2 is close to and tightened with the upper side of the valve body 1, when they are completely tightened, at this time the upper side of the connecting seat 72 is vertically aligned with the upper end vertical slot of the arc-shaped mounting groove 76, then the limiting seat 75 slides along the upper end vertical slot wall body of the corresponding arc-shaped mounting groove 76 by the compression reset force of the spring 74, the limiting seat 75 is slidingly connected with the upper end vertical slot wall body of the arc-shaped mounting groove 76 through the side surface, so as to limit the reverse sliding displacement of the connecting seat 72 along the arc-shaped mounting groove 76, the valve cover 2 of the composite exhaust valve is convenient and fast to install, when the two are separated in the later period, only the limiting seat 75 needs to be pressed downward to make it deeply enter the corresponding connecting seat 72, then the intercepting seat 78 is rotated to rotate above the adjacent limiting seat 75 around the shaft center of the rotating shaft 77, so as to limit the upward movement of the limiting seat 75 along the connecting seat 72, then the valve cover 2 is reversed to separate the valve cover 2 from the valve body 1, the connecting sealing effect between the connecting part of the valve cover 2 and the valve body 1 is improved through the rubber sealing ring 12, in the use process of the composite exhaust valve, when the gas pressure difference appears between the connecting pipeline and the external gas pressure, the floating ball 4 in the composite exhaust valve changes along with the internal and external gas pressure difference to slide along the rising float cover 3, so that the through hole in the middle of the valve cover 2 is exposed, so that the connecting pipeline is connected with the external environment through the air hole 5 and the through hole in the middle of the valve cover 2, so as to balance the gas pressure difference and realize the exhaust effect, the impurities in the gas entering the device are filtered through the filter screen 8, the connecting pipe 9 is connected with the inside of the valve body 1 by opening the control valve 11, the gas pressure in the valve body 1 is measured through the gas pressure gauge 10, so that the staff can intuitively understand, when high-speed exhaust appears in the device, the gas flow moves upward along the rising float cover 3 through the air hole 5, the gas flow in the edge part of the rising float cover 3 enters the inside of the annular wind guide seat 6 and flows along the inner arc surface of the annular wind guide seat 6 to the lower part of the device, the gas flow discharged in the rising float cover 3 is disturbed, so as to control the gas flow rate of the high-speed exhaust of the device, so as to avoid that the gas flow rate is too large to drive the floating ball 4 to move upward and block the through hole in the middle of the valve cover 2 in the high-speed exhaust process.

[0025] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made by using the content of the present application specification and drawings, are also included in the patent protection scope of the present application.

Claims

1. A composite exhaust valve, comprising a valve body (1), a valve cover (2) is installed on the upper side of the valve body (1), a float cover (3) is arranged on the inner wall of the valve body (1), a float ball (4) is slidably connected in the float cover (3), and a plurality of air holes (5) are evenly arranged on the inner wall of the float cover (3), characterized in that: It also includes a quick mounting mechanism (7); The quick mounting mechanism (7) includes an annular seat (71), a connecting seat (72) and an arc-shaped mounting groove (76), the annular seat (71) is arranged on the outer side of the upper end of the valve body (1), the inner wall of the annular seat (71) is provided with six evenly distributed connecting seats (72), the outer side of the lower end of the valve cover (2) is provided with six evenly distributed arc-shaped mounting grooves (76), and each arc-shaped mounting groove (76) is matched and mounted with the adjacent connecting seat (72).

2. A composite exhaust valve according to claim 1, wherein: The upper side of the floating cover (3) is provided with an annular air guide seat (6).

3. A composite exhaust valve as defined in claim 1 wherein: The quick mounting mechanism (7) further includes an extension column (73), a spring (74) and a limiting seat (75), the limiting seats (75) are respectively slidably connected to the interiors of the connecting seats (72), the extension columns (73) and the springs (74) are arranged between the connecting seats (72) and the adjacent limiting seats (75), and the springs (74) are movably sleeved with the outer ends of the adjacent extension columns (73).

4. A composite exhaust valve as claimed in claim 3, wherein: The quick mounting mechanism (7) further includes a rotating shaft (77) and an intercepting seat (78), the rotating shafts (77) are rotatably connected to the upper sides of the connecting seats (72) through bearings, the upper ends of the rotating shafts (77) are provided with the intercepting seats (78), and the intercepting seats (78) are matched and mounted with the adjacent limiting seats (75).

5. A composite exhaust valve as defined in claim 1 wherein: The outer side of the upper end of the valve cover (2) is provided with four evenly distributed filter screens (8).

6. A composite exhaust valve as defined in claim 1 wherein: The inner wall of the valve body (1) is provided with a connecting pipe (9) penetrating through, the upper end of the connecting pipe (9) is provided with an air pressure gauge (10), and the upper right end of the connecting pipe (9) is connected with a control valve (11) in series.

7. A composite exhaust valve as defined in claim 1 wherein: The upper side of the valve body (1) and the lower side of the valve cover (2) are both provided with annular grooves, and a rubber sealing ring (12) is arranged between the annular grooves.

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