CN210716135U

CN210716135U - Rubber lamella check valve of valve pin structure

Info

Publication number: CN210716135U
Application number: CN201921395225.6U
Authority: CN
Inventors: 周云忠; 路远航; 柴为民; 张雪根; 潘记存
Original assignee: Hangzhou Chunjiang Valve Co ltd
Current assignee: Hangzhou Chunjiang Valve Co ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-06-09
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a rubber flap check valve with a valve pin structure, which relates to the valve field and mainly comprises a valve body, a valve cover and a rubber valve flap; the valve body upper end sets up the valve gap and passes through the fix with screw, and the valve body is provided with the sealing washer with valve gap contact position and seals, the rubber valve clack is including setting up the valve pin in the head position, setting up at the core bone at middle part and the nylon reinforcing mat of parcel outside the core bone, the outer rubber that coats of nylon reinforcing mat, it has the recess to be used for putting into the valve pin that does not encapsulate the rubber to open on the valve body, the length of valve pin is longer than cladding rubber. The valve pin is longer than the coated rubber, so that the valve clack of the rubber clack check valve is not easy to dislocate and fall off, the positioning precision and the reliability of the check valve are effectively improved, the service life of a product is further prolonged, and the use frequency of the valve clack switch can reach 100 ten thousand times; the design of full flow area is adopted, and the device has the characteristics of small head loss, difficult accumulation of sundries and simple and convenient maintenance.

Description

Rubber lamella check valve of valve pin structure

Technical Field

The utility model relates to a valve field, concretely relates to rubber lamella check valve of valve pin structure.

Background

The rubber flap check valve is mainly suitable for a water supply and drainage system and can be installed at a water outlet of a water pump to prevent water backflow and water hammer from damaging the pump. Traditional rubber lamella check valve adopts the design of valve pin periphery cladding rubber usually, and cladding rubber length is longer than the valve pin, leads to when using, and the valve clack of rubber lamella check valve misplaces easily, drops, has reduced the positioning accuracy and the reliability of check valve, and the holistic life of product is not long, can bring the unnecessary loss for the enterprise.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of prior art existence, and provide a rubber lamella check valve of valve pin structure, it is little to have head loss, is difficult for piling up debris, maintains characteristics such as simple and convenient.

The purpose of the utility model is accomplished through following technical scheme: the rubber flap check valve with the valve pin structure mainly comprises a valve body, a valve cover and a rubber flap; the valve body upper end sets up the valve gap and passes through the fix with screw, and the valve body is provided with the sealing washer with valve gap contact position and seals, the rubber valve clack is including setting up the valve pin in the head position, setting up at the core bone at middle part and the nylon reinforcing mat of parcel outside the core bone, the outer rubber that coats of nylon reinforcing mat, it has the recess to be used for putting into the valve pin that does not encapsulate the rubber to open on the valve body, the length of valve pin is longer than cladding rubber.

The utility model has the advantages that: the valve pin is longer than the coated rubber, so that the valve clack of the rubber clack check valve is not easy to misplace and fall off, the positioning precision and reliability of the check valve are effectively improved, the service life of the product is further prolonged, and the use frequency of the valve clack can reach 100 ten thousand times; the design of full flow area is adopted, and the device has the characteristics of small head loss, difficult accumulation of sundries and simple and convenient maintenance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of the structure of the present invention.

Fig. 3 is a schematic structural diagram of the rubber valve flap.

Description of reference numerals: the valve comprises a valve body 1, a valve cover 2, a rubber valve clack 3, a valve pin 3-1, a core rod 3-2, a nylon reinforcing net 3-3, coated rubber 3-4, a sealing ring 4, a screw 5 and a groove 6.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

example (b): as shown in the attached drawings, the rubber flap check valve with the valve pin structure mainly comprises a valve body 1, a valve cover 2 and a rubber flap 3; the upper end of the valve body 1 is provided with the valve cover 2 and is fixed through a screw 5, the contact position of the valve body 1 and the valve cover 2 is provided with a sealing ring 4 for sealing, the rubber valve flap 3 comprises a valve pin 3-1 arranged at the head position, a core rod 3-2 arranged at the middle part and a nylon reinforcing net 3-3 wrapped outside the core rod 3-2, the nylon reinforcing net 3-3 is wrapped with rubber 3-4, the valve body 1 is provided with a groove 6 for placing the valve pin 3-1 which is not wrapped with rubber, the length of the valve pin 3-1 is longer than that of the wrapping rubber 3-4, the rubber valve flap 3 is ensured not to be easily dislocated and fall off, the positioning precision and reliability of the check valve are effectively improved, and the service life of a.

Preferably, the valve body 1 is designed in a full flow area type, and has the characteristics of small head loss, difficulty in accumulation of impurities, simplicity and convenience in maintenance and the like.

The utility model discloses a working process: when the device is used, a medium flows into the valve from the water inlet, the rubber valve flap is flushed away under the action of the impulsive force of the medium, the pipeline is communicated, and the medium flows to the water outlet from the water inlet; when the medium in the pipeline stops flowing, the rubber valve clack returns to the original position under the action of gravity and medium reflux force, and the check valve is closed; because the length of the valve pin in the rubber valve clack is longer than that of the coated rubber and the valve pin is fixed in the groove on the valve body, the rubber valve clack is ensured not to be easily dislocated or fall off under the impact of a medium.

It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.

Claims

1. A rubber flap check valve with a valve pin structure mainly comprises a valve body (1), a valve cover (2) and a rubber flap (3); valve body (1) upper end sets up valve gap (2) and fixes through screw (5), and valve body (1) and valve gap (2) contact position are provided with sealing washer (4) and seal its characterized in that: the rubber valve clack (3) comprises a valve pin (3-1) arranged at the head position, a core rod (3-2) arranged at the middle part and a nylon reinforcing net (3-3) wrapped outside the core rod (3-2), wherein rubber (3-4) is wrapped outside the nylon reinforcing net (3-3), a groove (6) is formed in the valve body (1) and used for placing the valve pin (3-1) which is not wrapped with rubber, and the length of the valve pin (3-1) is longer than that of the wrapped rubber (3-4).