CN215293786U

CN215293786U - Filter valve

Info

Publication number: CN215293786U
Application number: CN202121656544.5U
Authority: CN
Inventors: 郑志勇; 李德松; 郑桂凤; 王盛; 徐正家; 周兴良
Original assignee: Zhejiang Best And Honest Electromechanics Co ltd
Current assignee: Zhejiang Best And Honest Electromechanics Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-12-24
Anticipated expiration: 2031-07-20

Abstract

The utility model provides a filter valve belongs to valve technical field. It has solved the inconvenient problem of current strainer valve and pipe connection. The water inlet and outlet valve comprises a valve body with a water inlet hole and a water outlet hole which are arranged on the same central line, a water passing hole for communicating the water inlet hole with the water outlet hole is formed in the valve body, a filter screen cylinder is arranged in the water passing hole, a clamping pressure connecting pipe is fixedly connected with the valve body at the position of the water inlet hole and/or the valve body at the position of the water outlet hole, a convex ring is arranged on the outer side of the clamping pressure connecting pipe, a groove is formed in the position, corresponding to the position of the convex ring, of the inner side of the clamping pressure connecting pipe, a sealing ring is arranged in the groove, and the inner edge part of the sealing ring extends out of the groove. It has advantages of convenient connection, firm connection, etc.

Description

Filter valve

Technical Field

The utility model belongs to the technical field of the valve, a filter valve is related to.

Background

Along with the continuous development of urbanization, in the current water supply network, in order to guarantee the quality of water of user's end, all can use the strainer valve generally. The filter valve comprises a valve body with a water inlet hole and a water outlet hole and a filter screen which is arranged in the valve body and is positioned between the water inlet hole and the water outlet hole, and the filter screen can filter granular impurities such as sand and stone in flowing media. At present, the connection mode of the filter valve and the pipeline is either flange connection or direct threaded connection, and neither mode is particularly convenient in connection. Especially for urban water supply networks, the inconvenience of connection is particularly obvious because of the large number of filter valves to be used.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that prior art exists, provide a filter valve, solved and be connected inconvenient problem with the pipe fitting.

The purpose of the utility model can be realized by the following technical proposal:

the filter valve comprises a valve body with a water inlet hole and a water outlet hole which are arranged on the same central line, wherein a water passing hole for communicating the water inlet hole with the water outlet hole is formed in the valve body, a filter screen cylinder is arranged in the water passing hole, and the filter valve is characterized in that the valve body at the position of the water inlet hole and/or the valve body at the position of the water outlet hole are/is fixedly connected with a clamping and pressing connecting pipe, a convex ring is arranged on the outer side of the clamping and pressing connecting pipe, a groove is formed in the position, corresponding to the position of the convex ring, of the inner side of the clamping and pressing connecting pipe, a sealing ring is arranged in the groove, and the inner edge part of the sealing ring extends out of the groove.

The valve body at the water inlet and/or the valve body at the water outlet are fixedly connected with the clamping pressure connecting pipe, when in connection, the pipe fitting is inserted into the clamping pressure connecting pipe and is contacted with the outer peripheral wall of the pipe fitting through the sealing ring, then the clamping pressure connecting pipe between the convex ring and the valve body is clamped through the clamping pressure tool, and the pipe fitting and the clamping pressure connecting pipe simultaneously generate the same deformation to ensure that the pipe fitting and the clamping pressure connecting pipe are fixed and connected. Through the arrangement, the filter valve can be connected with the pipe fitting in a clamping and pressing mode, and the connection convenience is well improved.

In the filter valve, the inner edge of the sealing ring is provided with a plurality of notches distributed along the circumferential direction.

The inner edge of the sealing ring is provided with a plurality of notches which are distributed along the circumferential direction, the notches enable the inner edge of the sealing ring not to be in a complete circle shape, pressure testing is carried out after the connection of the whole pipeline is finished, if clamping pressure is not carried out between the pipe and the clamping pressure connection pipe, the notches at the sealing ring can enable the pipe and the clamping pressure connection pipe to leak, and therefore an installer can determine the position where the clamping pressure is not carried out according to the leakage position and clamp and press the position. Through the arrangement, the position of the installation personnel which is not clamped and pressed can be conveniently determined in the whole pipeline, and the phenomenon of leakage of clamping and pressing in the construction process is avoided.

In the filter valve, the cross section of the sealing ring is circular, and the two sides of the notch of the sealing ring are respectively provided with a reducing part with the diameter of the cross section slightly larger than that of the other positions of the sealing ring.

The variable-diameter parts are respectively arranged on the two sides of the notch of the sealing ring, and the diameter of the cross section of each variable-diameter part is slightly larger than that of the other positions of the sealing ring, so that the normal matching between the part of the sealing ring, which is not provided with the notch, and the pipe fitting cannot be influenced when the sealing ring is clamped and pressed; simultaneously, when the card was pressed, the reducing portion can be to the notch in carrying out the deformation to fill up the sealing washer completely in the gap between notch department and the pipe fitting and guarantee sealed effect. Like this for this card pressure valve both can be through setting up great notch in order to improve to let out leakage quantity, guarantees that field construction personnel can accurately master the hourglass card pressure situation in the pipeline, can utilize the variable diameter portion also can guarantee the due sealed effect between pipe fitting and the card pressure section when the notch increases simultaneously.

In the filter valve, the diameter of the cross section of the reducing part is gradually reduced from the middle to two sides.

The cross section diameter of the diameter-variable part is gradually reduced from the middle to two sides, so that the connection between the diameter-variable part and other positions of the sealing ring is smoother, and the shape can be better deformed into the notch to ensure sealing when the clamping pressure connecting pipe and the pipe fitting are clamped and pressed mutually.

In the filter valve, at least one annular positioning groove is formed in the clamping pressure connecting pipe between the convex ring and the valve body.

Because the clamping pressure connecting pipe between the convex ring and the valve body is provided with the annular positioning groove, when the pipe fitting and the clamping pressure connecting pipe are clamped, the positioning protrusion extruded into the annular positioning groove can be automatically formed on the pipe fitting, so that a firm anti-pulling structure between the pipe fitting and the clamping pressure connecting pipe is realized, and the connection firmness of the pipe fitting and the clamping pressure connecting pipe is well improved.

In the filter valve, one side wall of the annular positioning groove, which is close to the convex ring, is vertical to the inner wall of the clamping pressure connecting pipe, and one side wall of the annular positioning groove, which is far away from the convex ring, is inclined towards the direction far away from the convex ring.

Through the arrangement, the pipe fitting and the clamping pressure connection pipe are clamped and pressed to form the same shape with the annular positioning groove, so that the wedge-shaped matching is formed between the pipe fitting and the clamping pressure connection pipe, and the connection firmness is further improved.

In the filter valve, the valve body is made of stainless steel materials, and the clamping pressure connecting pipe is integrally formed on the valve body in a machining mode.

Compared with the prior art, the filter valve has the following advantages:

1. the valve body is made of stainless steel materials, so that the valve body with the clamping and pressing connecting pipe is integrally and fixedly connected with the water inlet and/or the water outlet through processing, and the valve body can be connected with the pipe fitting through the clamping and pressing mode to improve the convenience of connection;

2. the inner edge of the sealing ring is provided with a notch, so that a worker can quickly determine the position of the clamping pressure leakage in a real pipeline, and the gap between the clamping pressure connection pipe and the pipe fitting at the notch can be directly filled during clamping pressure through the arrangement of the two variable diameter parts so as to ensure normal sealing;

3. through the setting of annular positioning groove, the pipe fitting can form the location arch the same with annular positioning groove when the card is pressed, makes pipe fitting and card press and forms wedge-shaped cooperation between taking over, has improved the tensile and has pulled out the performance, and then has improved the firm in connection nature after pipe fitting and card press take over card press.

Drawings

Fig. 1 is a schematic view of a first embodiment of the filter valve.

Fig. 2 is a cross-sectional view of the first embodiment of the present filter valve.

Fig. 3 is a schematic view of a seal ring in the present strainer valve.

Fig. 4 is a sectional view of the second embodiment of the filter valve.

In the figure, 1, a valve body; 1a, a water inlet hole; 1b, water outlet holes; 1c, water through holes; 2. a filter screen cylinder; 3. clamping and pressing the connecting pipe; 3a, a convex ring; 3b, a groove; 3c, an annular positioning groove; 4. a seal ring; 4a, a notch; 4b, a diameter-variable part; 5. and (5) plugging the cap.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and fig. 2, the filter valve includes a valve body 1, the valve body 1 has a water inlet hole 1a and a water outlet hole 1b which are arranged on the same central line, a water passing hole 1c is arranged on the side portion of the valve body 1, the water passing hole 1c is inclined towards the water outlet hole 1b relative to the central line of the water inlet hole 1a, and the water inlet hole 1a and the water outlet hole 1b are respectively communicated with the water passing hole 1 c. Particularly, the inner end orifice of the water passing hole 1c is communicated with the water inlet hole 1a, the water outlet hole 1b is communicated with the lateral direction of the water passing hole 1c, a filter screen cylinder 2 is arranged in the water passing hole 1c, and the outer end orifice of the water passing hole 1c is in threaded connection with a blocking cap 5. When the filter screen is used, the medium flows into the filter screen cylinder 2 from the water inlet hole 1a, is filtered by meshes on the filter screen cylinder 2 and then flows into the water outlet hole 1 b. After long-time use, the plugging cap 5 is removed, and the filter screen cylinder 2 can be taken out from the water through hole 1c and cleaned or replaced.

As shown in fig. 1 and fig. 2, the valve body 1 at the water inlet hole 1a and the valve body 1 at the water outlet hole 1b are fixedly connected with a clamping pressure connection pipe 3, wherein the valve body 1 is made of stainless steel material, and the clamping pressure connection pipe 3 is integrally formed on the valve body 1 in a machining mode. The outer sides of the two clamping pressure connecting pipes 3 are provided with convex rings 3a, the inner sides of the two clamping pressure connecting pipes 3 are provided with grooves 3b corresponding to the positions of the convex rings 3a, sealing rings 4 are arranged in the grooves 3b, and the inner edge parts of the sealing rings 4 extend out of the grooves 3 b. In this embodiment, the convex ring 3a is disposed at the end of the clamping pressure connection pipe 3, so that the connection mode between the clamping pressure connection pipe 3 and the pipe is single clamping pressure, that is, the clamping pressure position is between the convex ring 3a and the valve body 1.

The valve body 1 at the water inlet 1a and the valve body 1 at the water outlet 1b are fixedly connected with the clamping pressure connecting pipe 3, when the connection is carried out, the pipe fitting is inserted into the clamping pressure connecting pipe 3 and is contacted with the peripheral wall of the pipe fitting through the sealing ring 4, then the clamping pressure connecting pipe 3 between the convex ring 3a and the valve body 1 is clamped through a clamping pressure tool, and the pipe fitting and the clamping pressure connecting pipe 3 simultaneously generate the same deformation to be fixed in the connection. Through the arrangement, the filter valve can be connected with the pipe fitting in a clamping and pressing mode, and the connection convenience is well improved.

As shown in fig. 2 and 3, the inner edge of the sealing ring 4 has a plurality of circumferentially distributed recesses 4 a. The cross section of the sealing ring 4 is circular, and the sealing ring 4 is provided with a diameter-changing part 4b with the diameter of the cross section slightly larger than that of other positions of the sealing ring 4 at two sides of the notch 4 a. In the present embodiment, the number of the notches 4a is two, and the seal ring 4 has the diameter-variable portions 4b on both sides of each notch 4a, and the cross-sectional diameter of the diameter-variable portions 4b is gradually reduced from the middle to both sides.

Through the arrangement of the notch 4a, the inner edge of the sealing ring 4 is not a complete circle, pressure testing is carried out after the connection of the whole pipeline is completed, if the clamping pressure is not normally carried out between the pipe and the clamping pressure connecting pipe 3, leakage can be generated between the pipe and the clamping pressure connecting pipe due to the fact that the sealing ring 4 is not deformed, and a worker can determine the position where the clamping pressure is not carried out only according to the leakage position and directly carry out clamping pressure operation on the position. In addition, the diameter-variable parts 4b are respectively arranged on the two sides of the notch 4a of the sealing ring 4, and the diameter of the cross section of each diameter-variable part 4b is slightly larger than that of the other positions of the sealing ring 4, so that the normal matching between the part of the sealing ring 4 which is not provided with the notch 4a and the pipe fitting cannot be influenced during clamping and pressing; simultaneously, when the card was pressed, reducing portion 4b can be to carrying out the deformation in the notch 4a to with sealing washer 4 in notch 4a department and the gap between the pipe fitting fill up completely in order to guarantee sealed effect. Like this for this card presses valve both can guarantee that field construction personnel can accurately master the hourglass card pressure situation in the pipeline through setting up great notch 4a in order to improve leakage quantity, can utilize the variable diameter portion 4b again simultaneously when notch 4a increases also can guarantee the sealed effect that should have between pipe fitting and the card pressure connection pipe 3.

Further, as shown in fig. 2, at least one annular positioning groove 3c is disposed between the protruding ring 3a and the valve body 1 of each of the two clamping pressure connection pipes 3, and the annular positioning grooves 3c in the two clamping pressure connection pipes 3 are distributed along the axial direction of the clamping pressure connection pipe 3. Specifically, a side wall of the annular positioning groove 3c close to the protruding ring 3a is perpendicular to the inner wall of the clamping pressure connection pipe 3, and a side wall of the annular positioning groove 3c far from the protruding ring 3a is inclined towards the direction far from the protruding ring 3 a. Through set up annular positioning groove 3c in the joint pipe is pressed to the card 3, when the pipe fitting was pressed with the card 3 joint pipe, can form the location arch of squeezing into in annular positioning groove 3c automatically on the pipe fitting and make to form tensile structure of pulling out between pipe fitting and the joint pipe is pressed to the card 3, improved the firm in connection nature after pipe fitting and filter valve are connected through the card mode of pressing well. Moreover, due to the special shape of the annular positioning groove 3c, after the pipe fitting is squeezed into the annular positioning groove 3c to form the positioning protrusion, the pipe fitting and the clamping pressure connecting pipe 3 form wedge-shaped matching, and the anti-pulling effect is better.

Example two

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, as shown in fig. 4, the protruding ring 3a is disposed at a position close to the end of the clamping pressure connection pipe 3, and the clamping pressure connection pipes 3 on both sides of the protruding ring 3a are both used for realizing the clamping pressure, that is, the connection between the clamping pressure connection pipe 3 and the pipe is a double clamping pressure, which means that the clamping pressure operation is performed on the clamping pressure connection pipes 3 on both sides of the protruding ring 3a during the clamping pressure.

EXAMPLE III

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in the present embodiment, only the valve body 1 at the water inlet hole 1a is fixedly connected with the clamping pressure connection pipe 3.

Example four

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, only the valve body 1 at the water outlet hole 1b is fixedly connected with the clamping pressure connection pipe 3.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. Filter valve, including valve body (1) that has inlet opening (1a) and apopore (1b) that the concentric line set up, valve body (1) in have with the water hole (1c) of crossing of inlet opening (1a) and apopore (1b) intercommunication, cross and be equipped with filter screen section of thick bamboo (2) in water hole (1c), its characterized in that, valve body (1) of valve body (1a) department and/or apopore (1b) department link firmly card and press takeover (3), the card is pressed takeover (3) outside and is had bulge loop (3a), the corresponding department of the inboard and bulge loop (3a) position of card pressure takeover (3) has recess (3b), is equipped with sealing washer (4) in recess (3b), the inner edge part of sealing washer (4) stretches out outside recess (3 b).

2. A filter valve according to claim 1, characterised in that the inner edge of the sealing ring (4) has a plurality of circumferentially distributed recesses (4 a).

3. A filter valve according to claim 2, wherein the cross-section of the sealing ring (4) is circular, and the sealing ring (4) has a diameter-changing portion (4b) with a cross-sectional diameter slightly larger than that of the sealing ring (4) at other positions on both sides of the recess (4 a).

4. A filter valve according to claim 3, wherein the diameter of the cross-section of the diameter-changing portion (4b) decreases from the middle to both sides.

5. A filter valve according to claim 1 or 2 or 3 or 4, characterised in that at least one annular positioning groove (3c) is provided in the clamping pressure connecting pipe (3) between the convex ring (3a) and the valve body (1).

6. A filter valve according to claim 5, wherein a side wall of the annular positioning groove (3c) close to the collar (3a) is perpendicular to the inner wall of the clamping pressure connecting pipe (3), and a side wall of the annular positioning groove (3c) far from the collar (3a) is inclined in a direction far from the collar (3 a).

7. A filter valve according to claim 1, wherein the valve body (1) is made of stainless steel material, and the clamping pressure connection pipe (3) is integrally formed on the valve body (1) by machining.