CN212056000U

CN212056000U - Controllable differential pressure valve with overcurrent protection function

Info

Publication number: CN212056000U
Application number: CN201921835847.6U
Authority: CN
Inventors: 李士涛
Original assignee: Shanghai Runshui Fluid Equipment Co ltd
Current assignee: Shanghai Runshui Fluid Equipment Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-12-01
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a controllable differential pressure valve with overcurrent protection function, including controllable differential pressure valve main part and pipeline, the one end that controllable differential pressure valve main part is close to the pipeline is provided with the inlet tube, the first connecting flange of fixedly connected with on the outer pipe wall that the inlet tube is close to pipeline one end, the beneficial effects of the utility model are that: the utility model relates to a controllable differential pressure valve with overcurrent protection function simple structure, high durability and convenient use, inside lining sealed tube through setting can be so that the compressive property between inlet tube and the pipeline improves, make sealing performance between pipeline and the controllable differential pressure valve main part better, through articulating the current-limiting plate on the fixed block, the current-limiting plate drives the lead screw through the axis of rotation and rotates, the lead screw can drive the current-limiting plate when rotating and carry out the adjustment of angle, thereby the inside cross-sectional area of inlet tube has been reduced, can effectually carry out overcurrent protection to controllable differential pressure valve main part, make the life of controllable differential pressure valve main part improve greatly.

Description

Controllable differential pressure valve with overcurrent protection function

Technical Field

The utility model relates to a controllable differential pressure valve technical field specifically is a controllable differential pressure valve with overcurrent protection function.

Background

The controllable differential pressure valve is a self-operated differential pressure balance valve, does not need external energy, automatically adjusts by the pressure change of the adjusted medium, automatically eliminates the residual pressure head of the pipeline and the flow deviation caused by pressure fluctuation, and keeps the pressure difference between an inlet and an outlet of a user constant. The differential pressure valve is particularly suitable for household metering or automatic control systems, and is helpful for stabilizing the operation of the system. When the existing controllable differential pressure valve is used, if the flow velocity of water flow in a pipeline is too large, the main body of the controllable differential pressure valve is easily damaged, so that the service life of the controllable differential pressure valve is shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a controllable differential pressure valve with overcurrent protection function to solve current controllable differential pressure valve when using, if the velocity of flow of rivers is too big in the pipeline, very easily cause controllable differential pressure valve main part impaired, thereby reduced the problem of the life of controllable differential pressure valve.

In order to achieve the above object, the utility model provides a following technical scheme: a controllable differential pressure valve with an overcurrent protection function comprises a controllable differential pressure valve main body and a pipeline, wherein a water inlet pipe is arranged at one end, close to the pipeline, of the controllable differential pressure valve main body, a first connecting flange is fixedly connected onto an outer pipe wall, close to one end of the pipeline, of the water inlet pipe, a second connecting flange is fixedly connected onto an outer pipe wall, close to one end of the pipeline, fixed blocks are fixedly connected onto pipe walls of the inner top and the inner bottom of the water inlet pipe, one side, close to the pipeline, of each fixed block is hinged with a flow limiting plate through hinges, a first sliding groove is formed in the plate wall of each flow limiting plate, a sliding block is connected to the inner portion of each sliding groove in a sliding mode, rotating shafts are rotatably connected onto the top and the bottom of the water inlet pipe and penetrate through the pipe walls of the water inlet pipe, a lead screw is, and the screw rod is in threaded connection with the sliding block.

Preferably, a plurality of locking bolts are arranged on the side wall, away from one side of the first connecting flange, of the second connecting flange at equal intervals, and one end, penetrating through the second connecting flange and the first connecting flange, of each locking bolt is connected with a locking nut in a threaded mode.

Preferably, a lining sealing pipe is fixedly connected to the inner pipe wall of the pipe close to one end of the water inlet pipe, and one end of the lining sealing pipe, far away from the pipe, extends to the inside of the water inlet pipe.

Preferably, equal fixedly connected with traveller on the lateral wall of slider both sides, all correspond the traveller on the lateral wall of the inside both sides of first spout and seted up the second spout, the second spout sets up with the traveller phase-match, traveller sliding connection is in the inside of second spout.

Preferably, the sliding column is of a cylindrical structure, and the sliding column is rotatably connected with the inside of the second sliding groove.

Preferably, the shifting block is fixedly connected to the shaft wall of one end, far away from the screw rod, of the rotating shaft.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a controllable differential pressure valve with overcurrent protection function simple structure, high durability and convenient use, inside lining sealed tube through setting can be so that the compressive property between inlet tube and the pipeline improves, make sealing performance between pipeline and the controllable differential pressure valve main part better, through articulating the current-limiting plate on the fixed block, the current-limiting plate drives the lead screw through the axis of rotation and rotates, the lead screw can drive the current-limiting plate when rotating and carry out the adjustment of angle, thereby the inside cross-sectional area of inlet tube has been reduced, can effectually carry out overcurrent protection to controllable differential pressure valve main part, make the life of controllable differential pressure valve main part improve greatly.

Drawings

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

FIG. 2 is a schematic view of the structure of the present invention;

FIG. 3 is a partial enlarged view of portion A of the present invention;

fig. 4 is a schematic structural view of the middle restrictor plate of the present invention.

In the figure: 1. a controllable differential pressure valve body; 2. a pipeline; 3. a water inlet pipe; 4. a first connecting flange; 5. a second connecting flange; 6. locking the bolt; 7. lining a sealing tube; 8. a fixed block; 9. a hinge; 10. a restrictor plate; 11. a first chute; 12. a slider; 13. a traveler; 14. a second chute; 15. a rotating shaft; 16. shifting blocks; 17. and a screw rod.

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. 1-4, the present invention provides a technical solution: a controllable differential pressure valve with an overcurrent protection function comprises a controllable differential pressure valve main body 1 and a pipeline 2, wherein a water inlet pipe 3 is arranged at one end, close to the pipeline 2, of the controllable differential pressure valve main body 1, a first connecting flange 4 is fixedly connected to the outer pipe wall, close to one end of the pipeline 2, of the water inlet pipe 3, a second connecting flange 5 is fixedly connected to the outer pipe wall, close to one end of the water inlet pipe 3, of the pipeline 2, a fixed block 8 is fixedly connected to the pipe walls of the inner top and the inner bottom of the water inlet pipe 3, a flow limiting plate 10 is hinged to one side, close to the pipeline 2, of the fixed block 8 through hinges 9, a first sliding groove 11 is formed in the plate wall of the flow limiting plate 10, a sliding block 12 is connected to the inner portion of the first sliding groove 11 in a sliding manner, rotating shafts 15 are rotatably connected to the top and the bottom of the water inlet, one end of the screw rod 17 far away from the rotating shaft 15 penetrates through the sliding block 12, and the screw rod 17 is in threaded connection with the sliding block 12.

A plurality of locking bolts 6 are arranged on the side wall of one side, far away from the first connecting flange 4, of the second connecting flange 5 at equal intervals, one end, penetrating through the second connecting flange 5 and the first connecting flange 4, of each locking bolt 6 is connected with a locking nut in a threaded manner, the first connecting flange 4 and the second connecting flange 5 are fastened and connected through the locking bolts 6 and the locking nuts, so that the pipeline 2 and the main body 1 of the controllable differential pressure valve are conveniently disassembled and assembled, a lining sealing pipe 7 is fixedly connected to the inner pipe wall of one end, close to the water inlet pipe 3, of the pipeline 2, one end, far away from the pipeline 2, of the lining sealing pipe 7 extends into the water inlet pipe 3, the lining sealing pipe 7 can enable the connecting effect between the pipeline 2 and the water inlet pipe 3 to be better, so that the sealing effect between the pipeline 2 and the main body 1 of the controllable differential pressure valve is better, sliding columns 13 are fixedly connected to the side walls on the two sides of the sliding block 12, second spout 14 and traveller 13 phase-match set up, traveller 13 sliding connection is in the inside of second spout 14, sliding connection can make slider 12 more stable when the inside of first spout 11 slides at the traveller 13 of second spout 14, traveller 13 is cylindric structure, and traveller 13 is connected with the inside rotation of second spout 14, traveller 13 can adjust the angle between slider 12 and the current-limiting plate 10 when the inside of second spout 14 rotates, fixedly connected with shifting block 16 on the axle wall of lead screw 17 one end is kept away from to axis of rotation 15, shifting block 16 can increase the arm of force of axis of rotation 15, shifting block 16 makes axis of rotation 15 more convenient laborsaving when rotating.

Specifically, when the utility model is used, the inner lining sealing pipe 7 fixedly connected inside the pipeline 2 is plugged into the water inlet pipe 3, the locking bolt 6 sequentially passes through the second connecting flange 5 and the first connecting flange 4, and the locking bolt 6 passing through one end of the first connecting flange 4 is in threaded connection with the locking nut to complete the installation, in an initial state, the thickness of the fixed block 8 is the same as the pipe wall thickness of the inner lining sealing pipe 7, the current limiting plate 10 is tightly attached to the inner lining sealing pipe 7, the current limiting plate 10 can clamp the inner lining sealing pipe 7, so that the connection between the pipeline 2 and the controllable differential pressure valve main body 1 is firmer, when overcurrent protection is needed, the shifting block 16 drives the rotating shaft 15 to rotate, the rotating shaft 15 can drive the screw rod 17 to rotate, the screw rod 17 can drive the slide block 12 to move towards the axis of the water inlet pipe 3 along the rod wall of the screw rod 17 when rotating, the included angle between the flow limiting plate 10 and the lining sealing pipe 7 is increased, the cross-sectional area inside the water inlet pipe 3 can effectively conduct overcurrent protection on the controllable differential pressure valve main body 1, and the service life of the controllable differential pressure valve main body 1 is greatly prolonged.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 controllable differential pressure valve with an overcurrent protection function is characterized by comprising a controllable differential pressure valve main body (1) and a pipeline (2), wherein a water inlet pipe (3) is arranged at one end, close to the pipeline (2), of the controllable differential pressure valve main body (1), a first connecting flange (4) is fixedly connected to the outer pipe wall at one end, close to the pipeline (2), of the water inlet pipe (3), a second connecting flange (5) is fixedly connected to the outer pipe wall at one end, close to the water inlet pipe (3), of the pipeline (2), fixed blocks (8) are fixedly connected to the pipe walls of the inner top and the inner bottom of the water inlet pipe (3), a current limiting plate (10) is hinged to one side, close to the pipeline (2), of each fixed block (8) through hinges (9), a first chute (11) is formed in the plate wall of the current limiting plate (10), and a sliding block (12) is connected to the inner portion of the first chute (, the top and the bottom of inlet tube (3) all rotate and are connected with axis of rotation (15), the pipe wall of inlet tube (3) is passed in axis of rotation (15), axis of rotation (15) extend to the inside one end fixedly connected with lead screw (17) of inlet tube (3), slider (12) is passed to the one end that axis of rotation (15) was kept away from in lead screw (17), just lead screw (17) and slider (12) threaded connection.

2. A controllable differential pressure valve with overcurrent protection as set forth in claim 1, wherein: the side wall of one side of the second connecting flange (5) far away from the first connecting flange (4) is provided with a plurality of locking bolts (6) at equal intervals, and one end of each locking bolt (6) penetrating through the second connecting flange (5) and the first connecting flange (4) is connected with a locking nut in a threaded mode.

3. A controllable differential pressure valve with overcurrent protection as set forth in claim 1, wherein: the water inlet pipe is characterized in that a lining sealing pipe (7) is fixedly connected to the inner pipe wall of one end, close to the water inlet pipe (3), of the pipeline (2), and one end, far away from the pipeline (2), of the lining sealing pipe (7) extends to the inside of the water inlet pipe (3).

4. A controllable differential pressure valve with overcurrent protection as set forth in claim 1, wherein: equal fixedly connected with traveller (13) on the lateral wall of slider (12) both sides, second spout (14) have all been seted up corresponding traveller (13) on the lateral wall of the inside both sides of first spout (11), second spout (14) and traveller (13) phase-match set up, traveller (13) sliding connection is in the inside of second spout (14).

5. A controllable differential pressure valve with overcurrent protection according to claim 4, wherein: the sliding column (13) is of a cylindrical structure, and the sliding column (13) is rotatably connected with the inside of the second sliding groove (14).

6. A controllable differential pressure valve with overcurrent protection as set forth in claim 1, wherein: and a shifting block (16) is fixedly connected to the shaft wall of one end, far away from the screw rod (17), of the rotating shaft (15).