CN213145474U

CN213145474U - Check valve of filter

Info

Publication number: CN213145474U
Application number: CN202022215207.4U
Authority: CN
Inventors: 吴瑞新
Original assignee: Shanghai Yongheng Valve Co ltd
Current assignee: Shanghai Yongheng Valve Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-05-07
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a check valve of a filter, which comprises a valve body (1), a valve cover (11) positioned at the upper end of the valve body (1), a valve clack (12) for plugging a channel in the valve body (1), a valve rod (13) fixed at the upper end of the valve clack (12) and provided with a guide groove (14) at the lower end of the valve cover (11) for guiding the valve rod (13) to move up and down; the valve further comprises an elastic component which is arranged at the upper end of the valve rod (13) and provides elastic supporting force, and an adjusting mechanism which can press the elastic component from the upper end to change the supporting force of the valve clack (12). When water flows out, the gravity of the water balances the upward redundant elastic force generated by the spring, so that the water flows out in a one-way mode, the application range is wide, and the water can be used when the water is vertically inclined.

Description

Check valve of filter

Technical Field

The utility model relates to a check valve non return dynamics adjustment field for the filter specifically is a filter check valve.

Background

On the air conditioner filter, because can produce moisture, in order to prevent the refluence, there is the check valve, the check valve utilizes the gravity of valve clack, block up the passageway, can be from upwards pushing up the valve clack down when going out water, realize going out water, and when can flowing, because valve clack gravity and the pressure of backward flow, cause the passageway to be blocked up, thereby avoided the backward flow, however, this kind also has a shortcoming, in case the check valve is using upside down, the gravity of valve clack has just reversed, play the effect that stops the backward flow, thus, the check valve, must the level use, application range has been restricted, therefore, how to make the check valve incline or also can use when upside down, increase application range, be the problem that this field of technical staff urgently needed to solve.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a filter check valve to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a check valve of filter is composed of valve body, valve cover on the upper end of valve body, valve clack for blocking the internal channel of valve body, valve rod with square upward cross-section and fixed to the upper end of valve clack, and guide slot under valve cover for moving valve rod up and down.

The valve also comprises an elastic component which is arranged at the upper end of the valve rod and provides elastic supporting force, and an adjusting mechanism which can press the elastic component from the upper end to change the supporting force of the valve clack.

Preferably, the elastic member is a spring.

Preferably, the adjusting mechanism is in a screw transmission type.

Preferably, adjustment mechanism is including installing the slider in the guide way, and the lower extreme of slider supports the upper end at the spring, the upper end of slider is rotated and is connected with the threaded rod that upwards wears out the valve gap, and threaded rod and valve gap threaded connection, the upper end of threaded rod is fixed with the convenient rotatory capstan.

Preferably, the upper end of the rotating disc is provided with round digging grooves which are convenient to buckle and penetrate up and down at equal intervals in the circumferential direction.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the valve is used vertically, the threaded rod is rotated to the upper side, so that the acting force of the spring on the valve rod is very small, and the valve can be blocked by utilizing the self gravity of the valve clack;

2. when the water outlet device is inverted or inclined, the rotating disc is rotated, the rotating disc drives the threaded rod to rotate, so that the sliding block is driven to compress the spring, the spring provides elastic force for the valve rod and the valve clack, the elastic force is larger than the gravity of the valve rod and the valve clack, upward thrust is generated after the gravity of the valve rod and the valve clack is balanced, a channel is blocked, the channel is similar to the gravity generated by the valve clack in the vertical state, and the upward redundant elastic force generated by the spring is balanced by the gravity of the water when the water is discharged, so that the water outlet is opened, the unidirectional flow is realized;

3. the rotating disc rotates, and the rotating disc is not easy to be touched and rotated by mistake.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a front view of the slider and the rotating disk according to the present invention;

fig. 4 is a bottom view of the slider and the rotating disk according to the present invention.

In the figure: 1. a valve body; 11. a valve cover; 12. a valve flap; 13. a valve stem; 14. a guide groove; 2. a spring; 21. a slider; 22. a threaded rod; 23. rotating the disc; 24. and (6) digging grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution of a check valve for a filter: a check valve of a filter comprises a valve body 1, a valve cover 11 positioned at the upper end of the valve body 1, a valve clack 12 for plugging a channel in the valve body 1, a valve rod 13 fixed at the upper end of the valve clack 12 and having a square upward section, and a guide groove 14 arranged at the lower end of the valve cover 11 for guiding the valve rod 13 to move up and down. The valve body 1 is a common check valve on the market, and the valve clack 12 closes the channel under the action of gravity.

And further comprises an elastic member provided at the upper end of the valve stem 13 to provide an elastic supporting force and an adjusting mechanism capable of pressing the elastic member from the upper end to change the amount of the supporting force to the valve flap 12. The elastic member is a spring 2. The spring 2 has stable elasticity and large deformation, so that the adjustment range is wider during compression. The adjusting mechanism is in a thread transmission type. The thread mode is adjusted more smoothly. The adjusting mechanism comprises a sliding block 21 installed in the guide groove 14, the lower end of the sliding block 21 abuts against the upper end of the spring 2, the upper end of the sliding block 21 is rotatably connected with a threaded rod 22 penetrating out of the valve cover 11 upwards, the threaded rod 22 is in threaded connection with the valve cover 11, and a rotary disc 23 convenient to rotate is fixed at the upper end of the threaded rod 22. The rotary disc 23 rotates to drive the threaded rod 22 to rotate, so that the sliding block 21 is driven to move up and down along the guide groove 14, and the extrusion pressure degree of the spring 2 is adjusted. The rotary disk 23 is not easily rotated by mistake relative to the valve stem, and is not easily scratched. The upper end of the rotary disc 23 is provided with round digging grooves 24 which are arranged at equal intervals in the circumferential direction and are convenient to buckle and penetrate up and down. The groove digging 24 facilitates the rotation of the rotary disc 23, and compared with the arrangement of the protrusions around the rotary disc 23, the groove digging 24 is not easy to be touched and scraped by mistake.

The working principle is as follows: when the valve is used vertically, the threaded rod 22 is rotated to the upper side, so that the acting force of the spring 2 on the valve rod 13 is small, and the valve can be blocked by utilizing the gravity of the valve clack 12. When handstand or slope, rotatory capstan 23, capstan 23 drives threaded rod 22 and rotates, thereby drive slider 21 compression spring 2, spring 2 gives valve rod 13 and valve clack 12 an elasticity, this elasticity is greater than the gravity of valve rod 13 and valve clack 12, after balancing the gravity between them like this, still produce ascending thrust, the shutoff passageway, similar to the gravity that valve clack 12 produced when vertical, during the play water, the ascending unnecessary elasticity that spring 2 produced of gravity balance of water, thereby open out water, realize one-way flow, application range is just very wide like this, vertical slope can both be used.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A check valve of a filter comprises a valve body (1), a valve cover (11) positioned at the upper end of the valve body (1), a valve clack (12) for plugging a channel in the valve body (1), a valve rod (13) fixed at the upper end of the valve clack (12) and having a square upward section, and a guide groove (14) arranged at the lower end of the valve cover (11) and used for guiding the valve rod (13) to move up and down;

the method is characterized in that: the valve further comprises an elastic component which is arranged at the upper end of the valve rod (13) and provides elastic supporting force, and an adjusting mechanism which can press the elastic component from the upper end to change the supporting force of the valve clack (12).

2. A filter check valve as defined in claim 1, wherein: the elastic component is a spring (2).

3. A filter check valve as defined in claim 2, wherein: the adjusting mechanism is in a thread transmission type.

4. A filter check valve as defined in claim 3, wherein: adjustment mechanism is including installing slider (21) in guide way (14), and the lower extreme of slider (21) supports the upper end at spring (2), the upper end of slider (21) is rotated and is connected with threaded rod (22) of upwards wearing out valve gap (11), and threaded rod (22) and valve gap (11) threaded connection, the upper end of threaded rod (22) is fixed with convenient rotatory capstan (23).

5. A filter check valve as defined in claim 4, wherein: the upper end of the rotary disc (23) is provided with round digging grooves (24) which are arranged at equal intervals in the circumferential direction and are convenient to buckle and run through up and down.