CN101858443A

CN101858443A - Antibiotic stop valve

Info

Publication number: CN101858443A
Application number: CN 201010214305
Authority: CN
Inventors: 叶颖; 涂志金; 王中梁; 邓真; 张作银; 张作芳
Original assignee: WENZHOU JINXIN VALVE CO Ltd
Current assignee: WENZHOU JINXIN VALVE CO Ltd
Priority date: 2010-06-25
Filing date: 2010-06-25
Publication date: 2010-10-13

Abstract

The invention relates to a valve, in particular to an antibiotic stop valve which is used in medicinal biochemistry field and takes antibiotic as medium. The invention provides the following technical scheme: an antibiotic stop valve comprises a valve body, a valve cap, a valve clack and a valve rod linked with the valve clack; wherein the valve cap is internally provided with a valve rod moving space which is vertically arranged to the connecting passage on the valve body, the valve clack comprises a coupling end and a sealed end, the coupling end thereof is extended into the moving space on the valve cap and is connected with the valve, the sealed end is arranged in the connecting passage and is arranged toward a sealing socket, a sealing assembly which forms sealing between the moving space and the connecting passage is arranged between the moving space of the valve cap and the connecting passage of the valve body, the sealing assembly is arranged between the coupling end and the sealed end of the valve clack, and the sealing assembly comprises a plurality of seal rings. By adopting the technical scheme, an antibiotic stop valve with easy assembly, simple structure, sterile source and low cost is provided.

Description

Antibiotic stop valve

Technical field

The present invention relates to a kind of valve, particularly a kind of medicine bioengineering chemical field that is used for is the antibiotic stop valve of medium with the antibiotics.

Background technique

The antibiotics valve mainly applies to the medicine bioengineering chemical field, in use bacterium is dyed having relatively high expectations of rate control.

At present, the antibiotics valve that occurs on market and the data mainly is made up of the valve rod of valve body, valve gap, flap and interlock flap, valve body is provided with medium inlet passage and medium flow pass, between its medium inlet passage and the medium flow pass by the connecting passage conducting, the sealing of flap and connecting passage place sealing seat or separate sealing or the conducting that constitutes medium inlet passage and medium flow pass; Usually, the joining place of valve gap and valve body be provided with for valve rod pass and with the valve handle activity space of connecting passage conducting, adopt packing seal between this activity space and the valve rod, the joint of valve rod and flap is in the connecting passage.

In the technique scheme, owing to adopt packing seal between activity space and the valve rod, for the integral body assembling brings inconvenience, and filler need often compress operation inconvenience; The replacing of filler comparatively bothers, and expense is higher, causes leakage in debug process easily; The joint of valve rod and flap is in the connecting passage, because connecting passage is the switching road of medium, when medium flow to the medium flow pass by the medium inlet passage by connecting passage, a small amount of medium can be bonded in the joint of valve rod and flap and can't discharge, residual medium is in this joint for a long time and then can ferments and produce bacterium, thereby causes antibiotics to add the microbiological contamination in man-hour.

Summary of the invention

At the deficiency that prior art exists, the invention provides a kind ofly be easy to assemble, simple in structure, aseptic source, antibiotic stop valve with low cost.

For achieving the above object, the invention provides following technological scheme: a kind of antibiotic stop valve, include valve body, valve gap, the valve rod of flap and interlock flap, described valve body is provided with medium inlet passage and medium flow pass, pass through the connecting passage conducting between its medium inlet passage and the medium flow pass, the sealing of flap and connecting passage place sealing seat or separate sealing or the conducting that constitutes medium inlet passage and medium flow pass, be provided with in the described valve gap with valve body on the vertically disposed valve handle activity of connecting passage space, described flap includes connecting end and sealed end, its connecting end extends in the activity space on the valve gap and with valve rod and is connected, sealed end is in the connecting passage and towards the sealing seat setting, be provided with the black box that constitutes activity space and connecting passage sealing between the activity space of valve gap and the connecting passage of valve body, the sealing assembly is between the connecting end and sealed end of flap, and described black box includes some seal rings.

Adopt technique scheme, seal by seal ring between the activity space on the valve gap and the connecting passage of valve body, and the connecting end of flap and valve rod is in the activity space of valve gap.After being provided with like this, the inner member of the medium inlet passage of valve body, connecting passage and medium flow pass is simple in structure, do not have the dead angle, and when making this valve of antibiotics medium approach, the valve inner space does not have residual medium and produces the bacterium source; Adopt seal ring to seal that not only cost is lower, and install and change comparatively convenient, reduced cost of production; Because seal ring need not to regulate and compresses, make and open and close comparatively laborsaving.And the combination of above-mentioned each parts, make the relative prior art of structure of this valve more simple, light, reduce some component, thereby reduced processing cost.

The present invention further is set to: be provided with the seal ring sheathed with flap between valve gap and the valve body, the outer circumferential face of sealing ring and the inwall of valve body are fitted, the inner peripheral surface of seal ring and flap are fitted, and are respectively equipped with some seal rings on the inner peripheral surface of seal ring and the outer circumferential face.

Adopt technique scheme, seal ring is installed on the valve body by seal ring, is provided with like this to install and change all for comparatively convenient.

The present invention further is set to: the joining place of valve body and valve gap is provided with the seal ring standing groove, and the bottom of this standing groove is provided with the shoulder rank of fitting with the seal ring lower end, and its top is the chamfering setting.

Adopt technique scheme, the seal ring standing groove the installation that has made things convenient for seal ring is set, the standing groove upper bevel then is that the seal ring on the seal ring is damaged and influences its sealing when preventing that seal ring is on being mounted to valve body.

The present invention further is set to: the sealed end place of flap is provided with screw rod, is arranged with the sealing gasket of fitting with the sealing surface of flap sealed end and the nut of locking sealing pad on this screw rod, and the top end of described screw rod is provided with and constitutes the spacing cotter pin of nut.

Adopt technique scheme, the setting of flap sealed end place sealing gasket can guarantee the sealing of sealing seat in flap and the connecting passage, and the setting of screw rod and nut then is for sealing gasket is fixed on the flap; The setting of screw rod cottering then is spacing in order to carry out after the nut check, prevents that nut from getting loose and cause sealing gasket and flap to break away from and cause flap loss of seal performance.

The present invention further is set to: valve body, valve gap, flap, valve rod and seal ring are stainless steel.

Adopt technique scheme, select its parts for use stainless steel, can prevent rust corrosion on the one hand, can prevent the pollution of iron ion and medium on the other hand.

Below in conjunction with accompanying drawing the present invention is further described:

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention;

Fig. 2 is the structural representation of valve body in the embodiment of the invention.

Embodiment

As Fig. 1, a kind of antibiotic stop valve shown in Figure 2, include valve body 1, valve gap 2, the valve rod 4 of flap 3 and interlock flap 3, valve body 1 is provided with medium inlet passage 11 and medium flow pass 12, pass through connecting passage 13 conductings between its medium inlet passage 11 and the medium flow pass 12, the sealing of flap 3 and connecting passage 13 place's sealing seats 131 or separate constitutes the sealing of medium inlet passage 11 and medium flow pass 12 or conducting (when flap 3 is fitted with sealing seat 131, then connecting passage 13 is closed, and this moment, medium inlet passage 11 can't conducting with 12 of medium flow pass; When flap 3 with after sealing seat 131 separates, connecting passage 13 conductings, this moment, medium inlet passage 11 can conducting with 12 of medium flow pass); Be provided with in the valve gap 2 with valve body 1 on connecting passage 13 vertically disposed valve rod 4 activity spaces 21, the extendable room when this activity space 21 is valve rod 4 interlock flaps 3.

In the embodiment of the invention, flap 3 includes connecting end 31 and sealed end 32, and the connecting end 31 of flap 3 extends in the activity space 21 on the valve gap 2 and with valve rod 4 and is connected, and sealed end 32 is in the connecting passage 13 and towards sealing seat 131 settings.Sealed end 32 places of flap 3 are provided with screw rod 33, are arranged with the sealing gasket 34 of fitting with the sealing surface of flap 3 sealed ends 32 and the nut 35 of locking sealing pad 34 on this screw rod 33, and the top end of described screw rod 33 is provided with and constitutes the spacing cotter pin 36 of nut 35; The setting of sealing gasket 34 can guarantee the sealing of sealing seats 131 in flap 3 and the connecting passage 13, and the setting of screw rod 33 and nut 35 then is for sealing gasket 34 is fixed on the flap 3; The setting of screw rod 33 cotterings 36 then is spacing in order to carry out after nut 35 locking, prevents that nut 35 from getting loose and cause sealing gasket 34 and flap 3 to break away from and cause flap 3 loss of seal performances; And when sealing gasket 34 processes needed to change for a long time, cotter pin 36 can comparatively make things convenient for dismounting; Be provided with the black box 5 that constitutes activity space 21 and connecting passage 13 sealings between the activity space 21 of valve gap 2 and the connecting passage 13 of valve body 1, sealing assembly 5 is between the connecting end 31 and sealed end 32 of flap 3, and black box 5 includes some seal rings 51.In the such scheme, seal by seal ring 51 between the activity space 21 on the valve gap 2 and the connecting passage 13 of valve body 1, and the connecting end of flap 3 and valve rod 4 is in the activity space 21 of valve gap 2.After being provided with like this, the inner member of the medium inlet passage 11 of valve body 1, connecting passage 13 and medium flow pass 12 is simple in structure, do not deposit the dead angle that medium is concealed, when making this valve of medium approach, the valve inner space does not have residual medium and produces the bacterium source; Adopt seal ring 51 to seal that not only cost is lower, and install and change comparatively convenient, reduced cost of production; Because seal ring 51 need not to regulate and compresses, make and open and close comparatively laborsaving.

In embodiments of the present invention, be provided with the seal ring 52 sheathed between valve gap 2 and the valve body 1 with flap 3, the inwall of the outer circumferential face of sealing ring 52 and valve body 1 is fitted, the inner peripheral surface of seal ring 52 and flap 3 are fitted, and be respectively equipped with the circular groove of placing for seal ring 51 521 on the inner peripheral surface of seal ring 52 and the outer circumferential face, be respectively equipped with seal ring 51 in each circular groove 521.Need to prove, the main effect of seal ring 52 is the carriers as seal ring 51, if seal ring 52 is not set, also can on flap 3, be provided for the circular groove of sheathed seal ring 51, then seal ring 52 is sheathed on the flap 3, also be feasible, after the embodiment of the invention, such change is that to need not to pay any creative work just enforceable.Certainly, seal ring is located at the assembling of being more convenient on the seal ring.

The installation of seal ring 52 for convenience and make the seal ring 52 can compact being in the valve body 1, in embodiments of the present invention, valve body 1 is provided with seal ring 52 standing grooves 14 with the joining place of valve gap 2, the bottom of this standing groove 14 is provided with the shoulder rank 141 of fitting with seal ring 52 lower ends, and its top is chamfering 142 and is provided with.The setting of this place's chamfering 142 is that the seal ring 51 on the seal ring 52 is damaged and influences its sealing when preventing that seal ring 52 is on being mounted to valve body 1.

In embodiments of the present invention, valve body 1, valve gap 2, flap 3, valve rod 4 and seal ring 52 are stainless steel.Select it for use stainless steel, can prevent rust corrosion on the one hand, can prevent the pollution of iron ion and medium on the other hand.

Claims

1. antibiotic stop valve, include valve body, valve gap, the valve rod of flap and interlock flap, described valve body is provided with medium inlet passage and medium flow pass, pass through the connecting passage conducting between its medium inlet passage and the medium flow pass, the sealing of flap and connecting passage place sealing seat or separate sealing or the conducting that constitutes medium inlet passage and medium flow pass, be provided with in the described valve gap with valve body on the vertically disposed valve handle activity of connecting passage space, it is characterized in that: described flap includes connecting end and sealed end, its connecting end extends in the activity space on the valve gap and with valve rod and is connected, sealed end is in the connecting passage and towards the sealing seat setting, be provided with the black box that constitutes activity space and connecting passage sealing between the activity space of valve gap and the connecting passage of valve body, the sealing assembly is between the connecting end and sealed end of flap, and described black box includes some seal rings.

2. antibiotic stop valve according to claim 1, it is characterized in that: be provided with the seal ring sheathed between described valve gap and the valve body with flap, the outer circumferential face of sealing ring and the inwall of valve body are fitted, the inner peripheral surface of seal ring and flap are fitted, and are respectively equipped with some seal rings on the inner peripheral surface of seal ring and the outer circumferential face.

3. antibiotic stop valve according to claim 2 is characterized in that: the joining place of described valve body and valve gap is provided with the seal ring standing groove, and the bottom of this standing groove is provided with the shoulder rank of fitting with the seal ring lower end, and its top is the chamfering setting.

4. antibiotic stop valve according to claim 1 and 2, it is characterized in that: the sealed end place of described flap is provided with screw rod, be arranged with the sealing gasket of fitting with the sealing surface of flap sealed end and the nut of locking sealing pad on this screw rod, the top end of described screw rod is provided with and constitutes the spacing cotter pin of nut.

5. according to claim 1 or 2 or 3 described antibiotic stop valves, it is characterized in that: described valve body, valve gap, flap, valve rod and seal ring are stainless steel.

6. antibiotic stop valve according to claim 4 is characterized in that: described valve body, valve gap, flap, valve rod and seal ring are stainless steel.