CN208204083U - A kind of tank bottom diaphragm valve - Google Patents

Abstract

The utility model relates to diaphragm valve technical fields, especially a kind of tank bottom diaphragm valve, including valve body, the inside of the valve body offers drainage hole, the concave setting in bosom position of the drainage hole, and the bottom end of the drainage hole is connected with drainpipe, the lower section of the valve body is equipped with pneumatic head, it is fixedly connected between the valve body and pneumatic head by shell, and horizontal connection has diaphragm between the valve body and shell, installing port is offered at the top of the top valve body of the diaphragm, is connected to inside the installing port and drainage hole.The utility model, structure is simple, while having the mode there are two types of open and close, effectively raises the convenience of operation.

Description

A kind of tank bottom diaphragm valve

Technical field

The utility model relates to diaphragm valve technical field more particularly to a kind of tank bottom diaphragm valves.

Background technique

Diaphragm valve is to make opening and closing element closed flow, truncation fluid with diaphragm and separate body cavity and valve deck inner cavity Shut-off valve.Its structure is simple, seal and antiseptic property is preferable, and fluid resistance is small.Relatively by force and contain for low pressure, low temperature, corrosivity The medium of suspended material.The mode that existing diaphragm valve is opened is relatively simple, when there is special situation, is not easy to operate.

Utility model content

Purpose of the utility model is to solve the disadvantages that the mode that unlatching exists in the prior art is relatively simple, and mention A kind of tank bottom diaphragm valve out.

To achieve the goals above, the utility model adopts the technical scheme that

Design a kind of tank bottom diaphragm valve, including valve body, the inside of the valve body offers drainage hole, the drainage hole it is interior The concave setting in portion middle position, and the bottom end of the drainage hole is connected with drainpipe, the lower section of the valve body is equipped with gas Dynamic head, is fixedly connected between the valve body and pneumatic head by shell, and horizontal connection has diaphragm between the valve body and shell Piece offers installing port at the top of the top valve body of the diaphragm, is connected to inside the installing port and drainage hole, it is described every The bottom of diaphragm is connected with valve rod vertically, and the valve stem slides are inserted into inside sealed cylinder block and end is connected with piston, described The bottom end of cylinder body is connect with pneumatic head, and the top fixing sleeve of the cylinder body is equipped with sealing baffle, the sealing baffle connection On the inner wall of the housing, equidistant more pull rods, more institutes are connected with along the circumferencial direction of valve body in the bottom of the diaphragm It states that pull rod runs through sealing baffle and end is connected with inner ring jointly, is arranged on the pull rod between the sealing baffle and inner ring There is a spring, the along the circumferential direction equidistant horizontal connection of the outside of the inner ring there are more fixed links, the shell and fixed link Rectangular through-hole is offered on corresponding position vertically, the more fixed links run through corresponding rectangular through-hole and end connects jointly It is connected to outer ring, is equipped with limiting device inside the rectangular through-hole.

Preferably, the limiting device includes the connection sleeve for being vertically connected on rectangular through-hole inner bottom, the connection Sleeve inner sliding is fitted with connecting rod, and the top of the connecting rod is fixedly connected with fixed link, and the connection sleeve and company Fixed latches are fitted between extension bar.

Preferably, there are gaps between the shell and outer ring.

Preferably, the left and right sides of the valve body offers sterilizing mouth.

Preferably, the top sides edge of the valve body offers groove.

The utility model proposes a kind of tank bottom diaphragm valve, beneficial effect is: by pneumatic head, so as to push work Plug is mobile in cylinder interior, and in the process of moving, valve rod pushes diaphragm to piston, so that diaphragm passes through installing port By drainage hole interior separations, water flow is forbidden to pass through, when pneumatic head breaks down, by pushing up outer ring, thus in driving Ring moves up, and pull rod pushes diaphragm while mobile, thus diaphragm by installing port by inside drainage hole every It is disconnected, then be fixed by limiting device.The utility model, structure is simple, while having the mode there are two types of open and close, Effectively raise the convenience of operation.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of tank bottom diaphragm valve structural schematic diagram；

Fig. 2 is enlarged structure schematic diagram at A in Fig. 1；

Fig. 3 be the utility model proposes a kind of tank bottom diaphragm valve drainage hole structure schematic diagram.

In figure: valve body 1, pneumatic head 2, cylinder body 3, drainpipe 4, shell 5, diaphragm 6, valve rod 7, drainage hole 8, sealing baffle 9, pull rod 10, spring 11, connecting rod 12, Fixed latches 13, piston 14, inner ring 15, fixed link 16, connection sleeve 17, outer ring 18, Rectangular through-hole 19, installing port 20.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1-3, a kind of tank bottom diaphragm valve, including valve body 1, the left and right sides of valve body 1 offer sterilizing mouth, valve body 1 top sides are along groove is offered, and the inside of valve body 1 offers drainage hole 8, and the bosom position of drainage hole 8 is concave to be set It sets, and the bottom end of drainage hole 8 is connected with drainpipe 4, the lower section of valve body 1 is equipped with pneumatic head 2, between valve body 1 and pneumatic head 2 It is fixedly connected by shell 5, and horizontal connection has diaphragm 6, the top of the top valve body 1 of diaphragm 6 between valve body 1 and shell 5 Portion offers installing port 20, is connected to inside installing port 20 and drainage hole 8, is connected with valve rod 7, valve vertically in the bottom of diaphragm 6 The sliding of bar 7 is inserted into 3 inside of sealed cylinder block and end is connected with piston 14, and the bottom end of cylinder body 3 is connect with pneumatic head 2, cylinder The top fixing sleeve of body 3 is equipped with sealing baffle 9, and sealing baffle 9 is connected on the inner wall of shell 5；By the mouth that sterilizes, so as to supply Add sterilizing valve, by groove, consequently facilitating wire bond is added between valve body 1 and tank bottom, by pneumatic head 2, so as to push Piston 14 moves inside cylinder body 3, and in the process of moving, valve rod 7 pushes diaphragm 6 to piston 14, thus diaphragm 6 By installing port 20 by 8 interior separations of drainage hole, water flow can be forbidden to pass through, when valve rod 7 moves down, diaphragm 6 and draining Hole 8 separates, and smooth can drain.

The bottom of diaphragm 6 along valve body 1 circumferencial direction it is equidistant be connected with more pull rods 10, more pull rods 10 pass through It wears sealing baffle 9 and end is connected with inner ring 15 jointly, be arranged with spring on the pull rod 10 between sealing baffle 9 and inner ring 15 11, the along the circumferential direction equidistant horizontal connection of the outside of inner ring 15 has more fixed links 16, the corresponding position of shell 5 and fixed link 16 It sets and offers rectangular through-hole 19 vertically, more fixed links 16 run through corresponding rectangular through-hole 19 and end is connected with jointly Outer ring 18 is equipped with limiting device there are gap between shell 5 and outer ring 18 inside rectangular through-hole 19, limiting device includes vertical It is connected to the connection sleeve 17 of 19 inner bottom of rectangular through-hole, connection 17 internal slide of sleeve is fitted with connecting rod 12, connecting rod 12 top is fixedly connected with fixed link 16, and is connected and be fitted with Fixed latches 13 between sleeve 17 and connecting rod 12；When pneumatic First 2 at work, and connection sleeve 17 and connecting rod 12 are in sliding mode, when pneumatic head 2 breaks down, by pushing up Outer ring 18, so that inner ring 15 be driven to move up, pull rod 10 pushes diaphragm 6 while mobile, so that diaphragm 6 is logical Installing port 20 is crossed by 8 interior separations of drainage hole, is limited i.e. by 13 pairs of connection sleeves 17 of Fixed latches and connecting rod 12 It can.

The utility model: by pneumatic head 2, so as to push piston 14 to move inside cylinder body 3, piston 14 is in movement During, valve rod 7 pushes diaphragm 6, so that diaphragm 6 passes through installing port 20 for 8 interior separations of drainage hole, forbids Water flow passes through, when pneumatic head 2 breaks down, by pushing up outer ring 18, so that inner ring 15 is driven to move up, mobile Pull rod 10 pushes diaphragm 6 simultaneously, so that diaphragm 6 passes through installing port 20 for 8 interior separations of drainage hole, then passes through limit Position device is fixed.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (5)

1. the inside of a kind of tank bottom diaphragm valve, including valve body (1), the valve body (1) offers drainage hole (8), the drainage hole (8) the concave setting in bosom position, and the bottom end of the drainage hole (8) is connected with drainpipe (4), feature exists In the lower section of the valve body (1) is equipped with pneumatic head (2), connects between the valve body (1) and pneumatic head (2) by the way that shell (5) are fixed It connects, and there is diaphragm (6) horizontal connection between the valve body (1) and shell (5), the top valve body (1) of the diaphragm (6) Top offers installing port (20), is connected to inside the installing port (20) and drainage hole (8), in the bottom of the diaphragm (6) It is connected with valve rod (7) vertically, valve rod (7) sliding is inserted into sealed cylinder block (3) inside and end is connected with piston (14), institute The bottom end for stating cylinder body (3) is connect with pneumatic head (2), and the top fixing sleeve of the cylinder body (3) is equipped with sealing baffle (9), institute It states sealing baffle (9) to be connected on the inner wall of shell (5), in the bottom of the diaphragm (6) along the circumferencial direction etc. of valve body (1) Distance is connected with more pull rods (10), and the more pull rods (10) run through sealing baffle (9) and end is connected with inner ring jointly (15), it is arranged with spring (11) on the pull rod (10) between the sealing baffle (9) and inner ring (15), the inner ring (15) Outside along the circumferential direction equidistant horizontal connection has more fixed links (16), the corresponding position of the shell (5) and fixed link (16) It sets and offers vertically rectangular through-hole (19), the more fixed links (16) run through corresponding rectangular through-hole (19) and end It is connected with jointly outer ring (18), limiting device is equipped with inside the rectangular through-hole (19).

2. a kind of tank bottom diaphragm valve according to claim 1, which is characterized in that the limiting device includes being vertically connected on The connection sleeve (17) of rectangular through-hole (19) inner bottom, connection sleeve (17) internal slide are fitted with connecting rod (12), The top of the connecting rod (12) is fixedly connected with fixed link (16), and the connection sleeve (17) and connecting rod (12) interleave Equipped with Fixed latches (13).

3. a kind of tank bottom diaphragm valve according to claim 1, which is characterized in that between the shell (5) and outer ring (18) There are gaps.

4. a kind of tank bottom diaphragm valve according to claim 1, which is characterized in that open the left and right sides of the valve body (1) Equipped with sterilizing mouth.

5. a kind of tank bottom diaphragm valve according to claim 1, which is characterized in that the top sides edge of the valve body (1) opens up There is groove.