CN207554802U - A kind of diaphragm type Plastic valve - Google Patents

Abstract

The utility model discloses a kind of diaphragm type Plastic valves, including plastic casing, water inlet pipe and outlet pipe, the left and right ends of the plastic casing have been respectively communicated with water inlet pipe and outlet pipe, blank pipe is plugged at the top of the plastic casing, the blank pipe runs through the top of plastic casing and extends to the inner cavity of plastic casing, the bottom of the blank pipe is communicated with piston tube, bolt is plugged at the top of the blank pipe, handle is provided at the top of the bolt, the bottom of the piston tube is plugged with piston rod, and the bottom of the piston rod is connected with fixed block.When the utility model is rotated by the effect bolt of bearing, piston is motionless, so that fixed block and diaphragm rubber pad will not rotate, so as to avoid damage caused by friction, connected by blank pipe with piston tube, bolt is plugged in piston tube, piston bottom of the tube and piston tube closely connect, the phenomenon that seeping water when therefore avoiding bolt rotation, it is more practical, it is suitble to be widely popularized and uses.

Description

A kind of diaphragm type Plastic valve

Technical field

The utility model is related to a kind of valve, more particularly to a kind of diaphragm type Plastic valve.

Background technology

Valve is generated with the generation of fluid circuit.The mankind have had the history of nearly 4000 using valve. When ancient Chinese inhales brine salt manufacturing from salt well, stopper valve was just once used in bamboo pipeline.B.C. 1800, ancient Egypt People also once used similar wooden cock to control point of flow when the Nile spreads unchecked and builds extensive water conservancy in order to prevent Match.These are all the blanks of valve.The extensive application of industrial valve is inchoate after watt invention steam engine, shows There are many some valve types, existing diaphragm type Plastic valve, during use, cause diaphragm rubber when rotating bolt Rubber cushion rotates therewith generation friction so that it is easily impaired, and flow can be oozed out along screw thread when bolt is rotated, and be made Into waste, therefore, it is proposed that a kind of diaphragm type Plastic valve.

Utility model content

The main purpose of the utility model is that providing a kind of diaphragm type Plastic valve, can effectively solve in background technology There are many existing valve type, existing diaphragm type Plastic valve, during use, cause diaphragm when rotating bolt Rubber pad rotates therewith generation friction so that and it is easily impaired, and flow can be oozed out along screw thread when bolt is rotated, Wasting problem.

To achieve the above object, the technical solution that the utility model is taken is：

A kind of diaphragm type Plastic valve, including plastic casing, water inlet pipe and outlet pipe, the left and right ends of the plastic casing Water inlet pipe and outlet pipe have been respectively communicated with, blank pipe has been plugged at the top of the plastic casing, the blank pipe is through plastic casing Top and the inner cavity for extending to plastic casing, the bottom of the blank pipe are communicated with piston tube, spiral shell are plugged at the top of the blank pipe Bolt, handle is provided at the top of the bolt, and the bottom of the piston tube is plugged with piston rod, the bottom connection of the piston rod There is fixed block, the bottom of the fixed block is provided with diaphragm rubber pad, and the inner cavity of the plastic casing is provided with partition board.

Further, the inner cavity of the piston tube is provided with piston, the piston rod through the bottom of piston tube and with work The bottom of plug is fixedly connected, and bearing is provided at the top of the piston, and the bottom of the bolt is plugged in inner cavity and the spiral shell of bearing The outer wall of bolt is fixedly connected with the inner wall of bearing.

Further, the limiting slot being adapted with diaphragm rubber pad is offered at the top of the partition board, the limiting slot Inner cavity offers through-hole.

Further, the inner cavity of the blank pipe is provided with the internal thread being adapted with bolt.

Further, the water inlet pipe and outlet pipe and plastic casing are detachable connection.

Compared with prior art, the utility model has the advantages that：

1. the diaphragm type Plastic valve of the utility model, when rotation by the effect bolt of bearing, piston is not It is dynamic, so that fixed block and diaphragm rubber pad will not rotate, so as to avoid damage caused by friction.

2. the diaphragm type Plastic valve of the utility model is connected by blank pipe with piston tube, bolt is plugged in piston tube, Piston bottom of the tube and piston tube closely connect, therefore avoid the phenomenon that seeping water when bolt rotates.

3. the diaphragm type Plastic valve of the utility model, close by offering limiting slot diaphragm rubber pad at the top of partition board Envelope formula is better, the phenomenon that being not in leak.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model diaphragm type Plastic valve；

Fig. 2 is the piston tube inner-cavity structure schematic diagram of the utility model diaphragm type Plastic valve.

In figure：1st, plastic casing；2nd, water inlet pipe；3rd, outlet pipe；4th, blank pipe；5th, piston tube；6th, piston；7th, handle；8th, spiral shell Bolt；9th, piston rod；10th, fixed block；11st, diaphragm rubber pad；12nd, partition board；13rd, limiting slot；14th, through-hole；15th, bearing.

Specific embodiment

To be easy to understand technical means, creative features, achievable purpose and effectiveness of the utility model, below With reference to specific embodiment, the utility model is expanded on further.

As shown in Figs. 1-2, a kind of diaphragm type Plastic valve, including plastic casing 1, water inlet pipe 2 and outlet pipe 3, the modeling The left and right ends of material shell body 1 have been respectively communicated with water inlet pipe 2 and outlet pipe 3, and the top of the plastic casing 1 is plugged with blank pipe 4, institute Blank pipe 4 is stated through the top of plastic casing 1 and extends to the inner cavity of plastic casing 1, the bottom of the blank pipe 4 is communicated with piston tube 5, the top of the blank pipe 4 is plugged with bolt 8, and the top of the bolt 8 is provided with handle 7, the bottom grafting of the piston tube 5 There is piston rod 9, the bottom of the piston rod 9 is connected with fixed block 10, and the bottom of the fixed block 10 is provided with diaphragm rubber pad 11, the inner cavity of the plastic casing 1 is provided with partition board 12.

Wherein, the inner cavity of the piston tube 5 is provided with piston 6, the piston rod 9 through the bottom of piston tube 5 and with work The bottom of plug 6 is fixedly connected, and the top of the piston 6 is provided with bearing 15, and the bottom of the bolt 8 is plugged in the interior of bearing 15 The outer wall of chamber and bolt 8 is fixedly connected with the inner wall of bearing 15, is lived when rotation by the effect bolt 8 of bearing 15 Plug 6 will not rotate therewith, so that diaphragm rubber pad 11 will not rotate, avoid the damage that friction generates.

Wherein, the top of the partition board 12 offers the limiting slot 13 being adapted with diaphragm rubber pad 11, the limiting slot 13 inner cavity offers through-hole 14, passes through the effect of limiting slot 13 so that without using when seal it is better.

Wherein, the inner cavity of the blank pipe 4 is provided with the internal thread being adapted with bolt 8.

Wherein, the water inlet pipe 2 and outlet pipe 3 and plastic casing 1 are detachable connection.

Operation principle：First when needing to open, carrying out rotation bolt 8 by hand-held handle 7 can rotate, and pass through spiral shell The effect of line can move upwards, meanwhile, the rotation of 15 inner ring of bearing, outer ring is motionless, and band piston 6 moves upwards, so that living Stopper rod 9 drives fixed block 10 and diaphragm rubber pad 11 to lift, and will not rotate, avoid friction, reversely rotate when not in use , bolt 8 is movable in piston tube 5 when rotation, so as to avoid, the phenomenon that flow is oozed out, apparatus structure letter It is single, it is easy to operation, it is highly practical.

The basic principle of the utility model and main feature and the advantages of the utility model has been shown and described above.One's own profession The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description Only illustrate the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model is also Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (5)

1. a kind of diaphragm type Plastic valve, including plastic casing (1), water inlet pipe (2) and outlet pipe (3), it is characterised in that：It is described The left and right ends of plastic casing (1) have been respectively communicated with water inlet pipe (2) and outlet pipe (3), the top grafting of the plastic casing (1) There is a blank pipe (4), the blank pipe (4) is through the top of plastic casing (1) and extends to the inner cavity of plastic casing (1), the blank pipe (4) bottom is communicated with piston tube (5), and bolt (8), the top setting of the bolt (8) are plugged at the top of the blank pipe (4) There is handle (7), the bottom of the piston tube (5) is plugged with piston rod (9), and the bottom of the piston rod (9) is connected with fixed block (10), the bottom of the fixed block (10) is provided with diaphragm rubber pad (11), and the inner cavity of the plastic casing (1) is provided with partition board (12)。

2. diaphragm type Plastic valve according to claim 1, it is characterised in that：The inner cavity of the piston tube (5) is provided with Piston (6), the piston rod (9) are fixedly connected through the bottom of piston tube (5) and with the bottom of piston (6), the piston (6) Top be provided with bearing (15), the bottom of the bolt (8) is plugged in the inner cavity of bearing (15) and the outer wall and axis of bolt (8) The inner wall for holding (15) is fixedly connected.

3. diaphragm type Plastic valve according to claim 1, it is characterised in that：Offered at the top of the partition board (12) with The limiting slot (13) that diaphragm rubber pad (11) is adapted, the inner cavity of the limiting slot (13) offer through-hole (14).

4. diaphragm type Plastic valve according to claim 1, it is characterised in that：The inner cavity of the blank pipe (4) be provided with The internal thread that bolt (8) is adapted.

5. diaphragm type Plastic valve according to claim 1, it is characterised in that：The water inlet pipe (2) and outlet pipe (3) with Plastic casing (1) is detachable connection.