CN206036362U - Flow valve case fixing device - Google Patents

Abstract

The utility model discloses a flow valve case fixing device belongs to flow valve equipment field. A counter bore, counter bore upper portion step and piston rod of the cylinder phase -match, counter bore lower part step and case valve rod phase -match that flow valve case fixing device, fixing device comprises the bisymmetry module, and the fixed locking of fixing bolt is passed through to two modules, and fixing device one side middle part has and all has the step about in the of one. Two modules of fixing device, module tip inboard is the arc, forms fixed handle, two fixed handle arcwall faces are connected, form an arc wall, conveniently install, whether follow arc groove face can conveniently be observed out two modules and mate. It can be realized preventing spool rotation, installation and dismantle convenient effect.

Description

A kind of flow valve core fixing device

Technical field

The utility model is related to flow valve apparatus field, more particularly, it relates to a kind of flow valve core fixing device.

Background technology

The minimum flow valve of high-pressure water descaling is typically mounted on the arm of high-pressure hydraulic pump outlet, when water pump runs well, When outer tube supplies water, minimum flow valve is closed.When water pump runs well outwards not to supply water, and not termination of pumping, minimum flow valve is by temperature In degree, pressure and the chain three kinds of modes of outlet valve, one way in which controls its on an off, the high pressure of a part of low discharge of venting Water, prevents cavitation (in, it is ensured that water pump normally continuously runs.

Minimum flow valve side subjects high pressure water system operating pressure 25Mpa in normal operation, and a lateral pressure is 0Mpa, valve element are opened and are connected with valve core valve stem by a disk by cylinder, and during work, the pressure differential of minimum flow valve both sides, draws Valve core rotation is played, cylinder piston is taken to and is followed rotation, so as to the valve element, valve rod and the cylinder piston seal that cause flow valve are damaged, Cause system leak, pressure oscillation, seriously threaten operating personnel's personal safety.

Chinese patent application, application number 201620081546.9 in publication date on June 22nd, 2016, disclose a kind of combustion gas Anti-overflow amount safety valve.It includes：Valve body, umbrella shape valve element, valve element fixing device, spring, spring dead plate, valve element fixing device It is hooked in the hole clipping of valve body by elastic card angle, umbellate form valve element axis hole mode is connected in valve element fixing device, and spring is through On the cylindrical bar of umbellate form valve element, two is separately fixed on the spring base of valve element fixing device and spring dead plate, and spring is fixed Plate is connected with the glans penis elastic opening pin on the cylindrical bar top of umbellate form valve element with hole thereon.This utility model has：First, Small volume, it is easy for installation, it is simple to operate；2nd, after can effectively preventing or prevent gas house because flexible pipe comes off and other not Bright reason causes the security incident that gas flow increase change is caused；3rd, pass through gas flow completely without the need for any extra power The various indexs of change are realized being automatically switched off；4th, could must open manually.But this fixing device is primarily to standing valve Core, it is impossible to improve and prevent the rotation of valve element.

The content of the invention

1. technical problem to be solved

For Spool rotating present in prior art, the problem of installing/dismounting inconvenience, the utility model provides one kind Flow valve core fixing device.It can realize preventing the effect of Spool rotating, easy installation and removal.

2. technical scheme

The purpose of this utility model is achieved through the following technical solutions.

A kind of flow valve core fixing device, fixing device are made up of two symmetrical modules, and two modules pass through fixing bolt Fixed locking, one middle side part of fixing device have about one counterbore for having step, counterbore upper step and cylinder piston rod phase Match somebody with somebody, counterbore lower step is matched with valve core valve stem.

Further, two modules of described fixing device, are arc on the inside of module ends, form fixed handle Hand, two fixed handle arcwall faces are connected, and form a deep-slotted chip breaker, are conveniently installed, conveniently can be seen from arc groove face Examine out whether two modules match.

Further, described fixing device side is provided with several fixing holes, and the fixing bolt of some matchings will Two modules are fixed.

Further, elasticity layer is set on the inside of described counterbore, and described elastic layer is rubber layer.Carry out stress more Step up it is close, it is anti-skidding, and prevent because rocking the damage for causing.

Further, described fixing device upper and lower end face arranges elasticity layer, and described elastic layer is rubber layer.On Under carry out preventing the damage clashed into when activity, protect valve components.

Further, fixing device is fixed between cylinder piston rod and valve core valve stem, top counterbore and cylinder piston Bar is fixed, and bottom counterbore is fixed with valve core valve stem.

Further, described flow valve top is cylinder, and cylinder is sequentially connected cylinder piston rod, fixing device, valve Core valve rod, valve element and cylinder connector, valve seat.

Further, the disk of described cylinder piston rod connection is fixed on fixing device top counterbore, fixing device Move up and down with valve core valve stem.

3. beneficial effect

Compared to prior art, the utility model has the advantage of：

(1) this fixture structure is simple, is easily installed dismounting using split type structure and valve element maintenance is changed, fixation side Formula makes full use of existing minimum discharge valve arrangement, it is not necessary to change existing minimum flow valve valve body structure size；Can after installation Minimum flow valve valve rod and cylinder positive connection is effectively ensured, is moved up and down with valve core valve stem, valve element is realized by cylinder It is rapid to open and close；

(2) arc is on the inside of module ends, fixed handle is formed, two fixed handle arcwall faces are connected, form one Individual deep-slotted chip breaker, is conveniently installed, and can conveniently observe whether two modules match from arc groove face, is installed more accurate；

(3) elasticity layer is set on the inside of counterbore, and described elastic layer is rubber layer.It is even closer after stress, anti-skidding and anti- Only because rocking the damage for causing, fixing device upper and lower end face arranges elasticity layer, and described elastic layer is rubber layer, up and down When prevent clash into damage, protect valve components；

(4) minimum discharge valve core after improving, reduces valve element replacement frequency, and service life extends；Front valve core is not improved Typically monthly change once, the cylinder first quarter is changed once；Improve back valve core to change once for general three months, cylinder half a year is changed Once.Benefit calculation is as follows：Spare part expense：5 pumps, by monthly per platform change valve element 1, every three months change 1 cylinder, 1 year Change valve element 60,20, cylinder；Transform latter year valve element only 20, save valve element 40, per 1.5 ten thousand yuan of part, count 600,000 yuan, 10, cylinder, per 2.2 ten thousand yuan of part, counts 220,000 yuan, and annual spare part expense can save 820,000 yuan；Labour cost：Valve element is changed every On 2 work days of secondary needs, on univalent 200 yuan/work day, work day 50,20,000 yuan of labour cost is saved altogether.Direct cost=spare part expense+people Expenses of labour uses=84 ten thousand yuan, and cost is substantially reduced.

Description of the drawings

Fig. 1 is flow valve front view of the present utility model；

Fig. 2 is valve element fixing device profile of the present utility model；

Fig. 3 is valve element fixing device top view of the present utility model.

Label declaration in figure：

1st, cylinder；2nd, cylinder piston rod；3rd, fixing device；4th, valve core valve stem；5th, valve element and cylinder connector；6th, valve seat； 7th, fixing bolt；8th, fixing hole；9th, fixed handle.

Specific embodiment

With reference to Figure of description and specific embodiment, the utility model is described in detail.

Embodiment 1

As described in Figure 1, the utility model is mainly in combination with the minimum discharge valve arrangement in hot-strip high-pressure water descaling system Feature, is improved to original valve element fixed disc, it is ensured that valve element can be moved up and down, and prevents valve core valve stem 4 from rotating.

The utility model makes full use of existing minimum flow valve design feature, the design system between cylinder 1 and valve core valve stem 4 Make a fixing device 3 with U-shaped card slot, this device is moved up and down together with valve rod, prevents 4 rotary motion of valve core valve stem.

A kind of flow valve core fixing device, fixing device 3 are made up of two symmetrical modules, and two modules pass through fixing bolt 7 fix locking, and 3 one middle side part of fixing device has about one counterbore for having step, counterbore upper step and 2 phase of cylinder piston rod Matching, counterbore lower step are matched with valve core valve stem 4.Two modules of described fixing device 3, are on the inside of module ends Arc, forms fixed handle 9, and two 9 arcwall faces of fixed handle are connected, and forms a deep-slotted chip breaker.

Described 3 side of fixing device is provided with several fixing holes 8, and the fixing bolt 7 of some matchings is by two modules It is fixed.It is 28 holes of fixing hole herein, matches two fixing bolts 7.Fixing device 3 is fixed on cylinder piston rod 2 and valve Between core valve rod 4, top counterbore is fixed with cylinder piston rod 2, and bottom counterbore is fixed with valve core valve stem 4.

Cylinder piston rod 2 and valve core valve stem 4 are connected by the utility model by fixing device 3, can keep valve element with gas Cylinder action is moved, and controls Spool rotating, and fixture structure is simple, and fixed form makes full use of existing equipment design feature, tears open Unload conveniently, it is easy to overhaul of the equipments.

Embodiment 2

Embodiment 2 is substantially the same manner as Example 1, and difference is to arrange elasticity layer on the inside of described counterbore, described Elastic layer be rubber layer.It is even closer that rubber layer causes to carry out stress when installation and operation, anti-skidding, and prevents from causing because rocking Damage.

Embodiment 3

Embodiment 3 is substantially the same manner as Example 1, and difference is that 3 upper and lower end face of fixing device arranges elasticity layer, Described elastic layer is rubber layer, carries out the damage for preventing from clashing into when activity up and down, protects valve components.

Embodiment 4

Embodiment 4 is substantially the same manner as Example 2, and difference is also to include, 3 upper and lower end face of fixing device is provided with Elastic layer, described elastic layer is rubber layer, carries out the damage for preventing from clashing into when activity up and down, protects valve components.

Embodiment 5

Using the flow valve of above-mentioned fixing device 3, top as follows, described is set for cylinder 1, cylinder 1 is sequentially connected gas Cylinder piston rod 2, fixing device 3, valve core valve stem 4, valve element and cylinder connector 5, valve seat 6.The described connection of cylinder piston rod 2 Disk is fixed on 3 top counterbore of fixing device, and fixing device 3 is moved up and down with valve core valve stem 4.Operation can keep Valve element is moved with cylinder action, controls Spool rotating, and fixture structure is simple, and fixed form makes full use of existing equipment structure Feature, convenient disassembly, it is easy to overhaul of the equipments.

Below schematically the invention and embodiments thereof are described, the description does not have restricted, not In the case of the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms.Institute in accompanying drawing What is shown is also one of embodiment of the invention, and actual structure is not limited thereto, any attached in claim Icon note should not limit involved claim.So, if one of ordinary skill in the art by its enlighten, without departing from In the case of this creation objective, the frame mode similar to the technical scheme and embodiment is designed without creative, all should Belong to the protection domain of this patent.Additionally, " an including " word is not excluded for other elements or step, one word of " one " before element It is not excluded for including " multiple " element.The multiple element stated in claim to a product can also by an element pass through software or Person's hardware is realizing.The first, the second grade word is used for representing title, and is not offered as any specific order.

Claims (8)

1. a kind of flow valve core fixing device, it is characterised in that：Fixing device (3) is made up of two symmetrical modules, two modules Lock by fixing bolt (7) is fixed, (3) one middle side part of fixing device has about one counterbore for having step, counterbore upper stage Rank is matched with cylinder piston rod (2), and counterbore lower step is matched with valve core valve stem (4).

2. a kind of flow valve core fixing device according to claim 1, it is characterised in that：Described fixing device (3) Two modules, be arc on the inside of module ends, form fixed handle (9), two fixed handle (9) arcwall faces are connected, Form a deep-slotted chip breaker.

3. a kind of flow valve core fixing device according to claim 1 and 2, it is characterised in that：Described fixing device (3) side is provided with several fixing holes (8), and two modules are fixed by the fixing bolt (7) of some matchings.

4. a kind of flow valve core fixing device according to claim 1, it is characterised in that：Arrange on the inside of described counterbore Elasticity layer, described elastic layer are rubber layer.

5. a kind of flow valve core fixing device according to claim 1 or 4, it is characterised in that：Described fixing device (3) upper and lower end face arranges elasticity layer, and described elastic layer is rubber layer.

6. usage right requires the flow valve of flow valve core fixing device described in 1, it is characterised in that：Fixing device (3) is fixed Between cylinder piston rod (2) and valve core valve stem (4), top counterbore and cylinder piston rod (2) are fixed, bottom counterbore and valve element valve Bar (4) is fixed.

7. flow valve according to claim 6, it is characterised in that：Flow valve top is cylinder (1), and cylinder (1) connects successively Connect cylinder piston rod (2), fixing device (3), valve core valve stem (4), valve element and cylinder connector (5), valve seat (6).

8. flow valve according to claim 7, it is characterised in that：The disk that described cylinder piston rod (2) connects is fixed In fixing device (3) top counterbore, fixing device (3) is moved up and down with valve core valve stem (4).