CN218118659U - Stop valve convenient to adjust flow - Google Patents

Abstract

The utility model relates to a stop valve convenient to regulated flow, which comprises a valve body, gland and valve rod, be equipped with the disk seat in the valve body, the valve rod is through being connected the entering valve body with the gland, both ends are equipped with hand wheel and valve clack respectively about the valve rod, both ends are including charge-in pipeline and ejection of compact pipeline respectively about the valve body, the one end that the valve body was kept away from to the ejection of compact pipeline is rotated and is connected with flow control pipeline, be provided with first flow control lamella and second flow control lamella between ejection of compact pipeline and the flow control pipeline, the shape of first flow control lamella is semi-circular and the port sealing connection of cambered surface and ejection of compact pipeline, the shape of second flow control lamella is semi-circular and cambered surface and flow control pipeline are close to ejection of compact pipeline port sealing connection, second flow control lamella and first flow control lamella hug closely each other, the utility model discloses an adjust the coincidence area of first flow control lamella and second flow control lamella, control ejection of compact pipeline port flow area to the realization is to stop valve flow's regulation.

Description

Stop valve convenient to adjust flow

Technical Field

The utility model relates to a valve equipment technical field, especially a stop valve convenient to regulated flow.

Background

The stop valve is one of the most widely used valves, and the stop valve makes the sealing surface of the valve clack and the sealing surface of the valve seat tightly attached by the pressure of a valve rod to prevent the medium from flowing. The stop valve can be used for cutting off and flow regulation, and the stop valve has larger fluid resistance, so compared with valves such as a ball valve and the like, the stop valve is harder to open and close, and is more troublesome in flow regulation; and if frequently use the stop valve to adjust the flow, the valve clack produces wearing and tearing easily, leads to the cut-off flow effect of stop valve to reduce.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stop valve convenient to regulated flow adjusts the relative position relation of first flow control lamella and second flow control lamella through rotating the flow control pipeline to the realization is to the regulation of stop valve flow, has solved the above-mentioned problem that exists among the prior art in the use.

The technical scheme of the utility model is realized like this: the utility model provides a stop valve convenient to adjust flow, includes valve body, gland and valve rod, be provided with the disk seat in the valve body, the valve rod gets into the valve body through with gland threaded connection, the valve rod upper end is provided with the hand wheel and the lower extreme is provided with the valve clack with disk seat matched with, both ends are including charge-in pipeline and ejection of compact pipeline respectively about the valve body, the one end that the valve body was kept away from to the ejection of compact pipeline is rotated and is connected with the flow control pipeline, be provided with the flow control subassembly between ejection of compact pipeline and the flow control pipeline, the flow control subassembly is including first flow control lamella and second flow control lamella, first flow control lamella fixed connection is at the port of ejection of compact pipeline, the shape of first flow control lamella is semi-circular and the diameter size is the same with the inner wall diameter of ejection of compact pipeline, the cambered surface of first flow control lamella is connected with the inner wall sealing of ejection of compact pipeline, second flow control lamella fixed connection is close to the port of ejection of compact pipeline, the shape of second flow control lamella is the semicircular and the diameter size is the same with the inner wall diameter of flow control pipeline, the cambered surface of second flow control lamella is hugged closely with the inner wall sealing connection of flow control pipeline, first flow control lamella and the first flow control lamella is hugged closely each other.

By adopting the technical scheme, the relative position relation of the first flow regulating valve and the second flow regulating valve can be changed by rotating the flow regulating pipe, so that the size of the cross section through which a medium can pass when passing through the flow discharging pipeline is influenced, and the function of regulating the flow is realized.

The utility model discloses further set up to: the flow control pipeline has seted up first joint groove on the terminal surface with ejection of compact pipeline contact, the ejection of compact pipeline is provided with the first joint ring with first joint groove matched with at the terminal surface with flow control pipeline contact, be provided with first sealing washer between first joint ring and the first joint groove.

Through adopting above-mentioned technical scheme, mutually supporting of first joint ring and first joint groove provides one kind and can stabilize the technical scheme who connects ejection of compact pipeline and flow control pipeline to the setting of first sealing washer can improve the sealed degree between flow control pipeline and the ejection of compact pipeline.

The utility model discloses further set up to: the one end that the ejection of compact pipeline was kept away from to the flow control pipeline is rotated and is connected with the connecting pipe, the terminal surface of connecting pipe and flow control pipeline contact is provided with second joint groove, the flow control pipeline is provided with the second joint ring with second joint groove matched with the terminal surface of connecting pipe contact, be provided with the second sealing washer between second joint ring and the second joint groove.

Through adopting above-mentioned technical scheme, the mutually supporting in second joint ring and second joint groove provides the technical scheme that can stabilize and connect flow control pipeline and connecting pipe to the setting of second sealing washer can improve the sealed degree between flow control pipeline and the ejection of compact pipeline, and the design of this structure can only make flow control pipeline take place to rotate and can not influence external pipeline when adjusting the flow in addition, provides the use scheme of a simple and convenient easy operation for the staff.

The utility model discloses further set up to: the one end that flow control pipeline was kept away from to the connecting pipe sets up spacing step, be equipped with the third sealing washer on the spacing step, be provided with the internal thread between the port that flow control pipeline was kept away from to spacing step and connecting pipe.

Through adopting above-mentioned technical scheme, stop valve accessible this structure is connected with external pipeline to the setting of first sealing washer can improve the sealed degree between connecting pipe and the external pipeline.

The utility model discloses further set up to: the discharge pipeline is provided with an arc-shaped limiting groove on the outer side wall of one side far away from the first flow regulating valve, the radian of the limiting groove is semicircular, the outer side wall of the flow regulating pipeline is provided with a limiting block, the limiting block is L-shaped, one end of the limiting block is fixedly connected with the flow regulating pipeline, and the other end of the limiting block is clamped in the limiting groove.

By adopting the technical scheme, the structure can limit the movement range of the limiting block in the limiting groove, so that the function of limiting the rotation amplitude of the flow regulating pipeline is realized.

The utility model discloses further set up to: the limiting block is provided with a first groove on the end face of the limiting groove bottom, a plurality of second grooves which are uniformly distributed are formed in the bottom of the limiting groove, springs and steel balls are arranged in the second grooves, the steel balls are connected above the springs, and the steel balls are used for being clamped with the first grooves.

Through adopting above-mentioned technical scheme, when the stopper slides to second recess opening part, the steel ball passes through spring and first recess looks block, and a plurality of fixed gears can be predetermine to this structure, if when having several fixed flow requirements in operational environment, this structure is through helping the staff to adjust the flow size into more accurate numerical value to this structure can further prevent that the stopper from receiving the influence of external force to take place the displacement.

The utility model discloses further set up to: and a flow prompt mark is arranged on the outer side wall of the discharge pipeline.

Through adopting above-mentioned technical scheme, can rotate the flow control pipeline when the staff, the flow size at this moment can be reminded to the staff to this structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

FIG. 2 is an enlarged partial view of FIG. 1 at A;

FIG. 3 isbase:Sub>A schematic sectional view in the direction A-A of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is a perspective view of the present invention with the flow regulating pipe, the connecting pipe, and a portion of the discharge pipe engaged;

FIG. 6 is an enlarged partial schematic view at C of FIG. 5;

fig. 7 is an exploded view of the structure of fig. 5.

The reference numbers in the figures: 1 valve body, 11 valve seats, 12 feeding pipelines, 13 discharging pipelines, 131 first clamping rings, 132 first sealing rings, 133 limiting grooves, 1331 second grooves, 1332 springs, 1333 steel balls, 134 flow prompting marks, 14 flow adjusting pipelines, 141 first clamping grooves, 142 second clamping rings, 143 second sealing rings, 144 limiting blocks, 1441 first grooves, 15 flow adjusting components, 151 first flow adjusting valves, 152 second flow adjusting valves, 16 connecting pipes, 161 second clamping grooves, 162 limiting steps, 163 third sealing rings, 164 internal threads, 2 glands, 3 valve rods, 31 hand wheels and 32 valve flaps.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 7 of 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 efforts belong to the protection scope of the present invention.

The embodiment is as follows:

as shown in fig. 1 to 7, the utility model discloses a stop valve convenient to adjust flow, including valve body 1, gland 2 and valve rod 3, be provided with valve seat 11 in valve body 1, valve body 1 is connected through screw-thread fit with gland 2, wherein valve rod 3 gets into valve body 1 through with gland 2 threaded connection, and valve rod 3 upper end is connected with hand wheel 31 and the lower extreme is connected with the valve clack 32 that is used for sealed valve seat 11, both ends are including charge-in pipeline 12 and discharge pipeline 13 respectively about in addition valve body 1, the one end rotation that discharge pipeline 13 kept away from valve body 1 is connected with flow control pipeline 14, and be provided with flow control assembly 15 between discharge pipeline 13 and flow control pipeline 14, flow control assembly 15 divide into first flow control lamella 151 and second flow control lamella 152, first flow control lamella 151 fixed connection is at discharge pipeline 13 port, the shape of first flow control lamella 151 is the semicircle and the diameter size is the same with the inner wall diameter of discharge pipeline 13, the cambered surface of first flow control lamella and the inner wall of discharge pipeline 13 are in sealing connection's state, second flow control lamella 152 fixed connection at the pipeline 14, the cambered surface of first flow control lamella and the same cambered surface of second flow control lamella and the same state of second flow control lamella and the flow control lamella diameter of discharge pipeline 151 and the same with the inner wall of the flow control lamella diameter of discharge pipeline 152, the inner wall of the same state of the second flow control lamella, the cambered surface of the same position of the flow control lamella, the cambered surface of the same of the flow control lamella of the same.

The utility model discloses be in the open mode, and when the staff will adjust the flow, can rotate flow control pipeline 14, when flow control pipeline 14 rotates, first flow control lamella 151 changes with the coincidence area of second flow control lamella 152, when the coincidence area changes, the accessible area size of ejection of compact pipeline 13 port also can change, the theory of operation of this structure is promptly, the instantaneous flow of medium is influenced through the accessible area's of control ejection of compact pipeline 13 port size, thereby realize the effect of adjusting medium flow size, when first flow control lamella 151 and second flow control lamella 152 coincidence are semi-circular, the accessible area of ejection of compact pipeline 13 port is at the maximum value, when first flow control lamella 151 and second flow control lamella 152 constitute a complete circle, the port of ejection of compact pipeline 13 is by the complete shutoff, accessible area is 0, the medium can't flow from ejection of compact pipeline 13 this moment.

The specific structure that the flow regulating pipeline 14 is rotationally connected to the discharging pipeline 13 is as follows: the first clamping groove 141 is arranged on the end face of the discharge pipeline 13, which is in contact with the discharge pipeline 13, correspondingly, the discharge pipeline 13 is provided with a first clamping ring 131 capable of clamping the first clamping groove 141 on the end face in contact with the discharge pipeline 13, furthermore, a first sealing ring 132 is arranged between the first clamping ring 131 and the first clamping groove 141, the first sealing ring 132 can be made of polytetrafluoroethylene, the working principle of the structure is that the discharge pipeline 13 is clamped in the first clamping groove 141 through the first clamping ring 131, so as to form a connection relation with the discharge pipeline 14, the first sealing ring 132 is arranged between the first clamping ring 131 and the first clamping groove 141 to ensure the sealing performance between the discharge pipeline 13 and the discharge pipeline 14, and the function of preventing the media from seeping out from the connection between the discharge pipeline 13 and the discharge pipeline 14 is realized.

The one end that the flow control pipeline 14 kept away from the discharge pipeline 13 rotates and is connected with the connecting pipe 16, when the stop valve is assembled with external pipeline, the connecting pipe 16 is used for being connected with external pipeline, the end face that the connecting pipe 16 contacts with the flow control pipeline 14 is provided with the second joint groove 161, correspondingly, the end face that the flow control pipeline 14 contacts with the connecting pipe 16 is provided with the second joint ring 142 that can joint the second joint groove 161, furthermore, be provided with the second sealing washer 143 between the second joint ring 142 and the second joint groove 161, the second sealing washer 143 can adopt polytetrafluoroethylene, the theory of operation of this structure is, the flow control pipeline 14 passes through the second joint ring 142 joint in the second joint groove 161 of joint, thereby form the relation of connection with the connecting pipe 16, the second sealing washer 143 sets up between second joint ring 142 and the second joint groove 161 to ensure the leakproofness between flow control pipeline 14 and the connecting pipe 16, thereby prevent the medium from oozing from the junction of flow control pipeline 14 and connecting pipe 16, when the staff adjusts the flow and rotates the flow control pipeline 14, this structure can make the flow control pipeline 16 can not follow and rotate and adjust the flow because of the flow control pipeline.

The end of the connecting pipe 16 far away from the flow adjusting pipe 14 is provided with a limit step 162, the limit step 162 is provided with a third sealing ring 163, an internal thread 164 is arranged between the limit step 162 and the port of the connecting pipe 16 far away from the flow adjusting pipe 14, the working principle of the structure is that when the stop valve is to be assembled with an external pipe, the external pipe is connected with the internal thread 164 of the connecting pipe 16 in a matching manner, and after the assembly is completed, the third sealing ring 163 is abutted between the limit step 162 and the external pipe to form a sealing effect.

Discharge pipe 13 has seted up curved spacing groove 133 on keeping away from one side lateral wall of first flow control lamella 151, the spacing groove 133 radian is semi-circular, flow control pipeline 14's lateral wall is equipped with stopper 144, stopper 144 is L shape, stopper 144's one end and flow control pipeline 14 fixed connection, connected mode can adopt the welding, in spacing groove 133 was located to stopper 144's other end card, the position design of spacing groove 133 on the flow control pipe lateral wall should be: when the limiting block 144 is located at one end of the limiting groove 133, the first flow regulating flap 151 and the second flow regulating flap 152 can completely block the port of the discharge pipeline 13, at this time, the flow area of the port of the discharge pipeline 13 is in a zero state, when the limiting block 144 is located at the other end of the limiting groove 133, the first flow regulating flap 151 and the second flow regulating flap 152 are in a superposed state, at this time, the flow area of the port of the discharge pipeline 13 is in a maximum state, and when the limiting block 144 moves from one end of the limiting groove 133 to the other end, the flow area of the port of the discharge pipeline 13 should gradually change from zero to the maximum value.

The limiting block 144 is provided with a first groove 1441 on the end face towards the bottom of the limiting groove 133, the bottom of the limiting groove 133 is provided with a plurality of second grooves 1331 which are uniformly distributed, a spring 1332 and a steel ball 1333 are arranged in the second groove 1331, the steel ball 1333 is connected above the spring 1332, the steel ball 1333 is used for being clamped with the first groove 1441, the design principle of the structure is similar to that of a ball plunger, when the first groove 1441 moves to the opening of the second groove 1331, the steel ball 1333 is clamped with the first groove 1441 by the force of the spring 1332, and the main function of the structure is as follows: a plurality of fixed gears can be preset to this structure, if when having several fixed flow requirements in operational environment, this structure is through helping the staff to adjust the flow size into more accurate numerical value to this structure can further prevent that stopper 144 from receiving the influence of external force to take place the displacement.

Be provided with flow suggestion sign 134 on ejection of compact pipeline 13 lateral wall, this structure can set up a plurality of on ejection of compact pipeline 13's lateral wall, and the concrete expression does: each flow prompting mark 134 is matched with one second groove 1331, and the flow prompting mark 134 indicates the flow provided by the stop valve when the limit block 144 moves to the position of the matched second groove 1331, so as to remind the staff when the flow regulating pipeline 14 rotates.

The utility model that should point out simultaneously indicates the terminology, like: the directional or positional relationships indicated as "front", "rear", "vertical", "horizontal", etc. are based on the directional or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but are not intended to 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 scope of the invention.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a stop valve convenient to adjust flow, includes valve body (1), gland (2) and valve rod (3), be provided with disk seat (11) in valve body (1), valve rod (3) get into valve body (1) through with gland (2) threaded connection, valve rod (3) upper end is provided with hand wheel (31) and lower extreme and is provided with and disk seat (11) matched with valve clack (32), its characterized in that: the valve body (1) left and right ends are respectively including charge-in pipeline (12) and discharge pipeline (13), the one end that discharge pipeline (13) kept away from valve body (1) rotates and is connected with flow control pipeline (14), be provided with flow control subassembly (15) between discharge pipeline (13) and flow control pipeline (14), flow control subassembly (15) are including first flow control lamella (151) and second flow control lamella (152), first flow control lamella (151) fixed connection is at the port of discharge pipeline (13), the shape of first flow control lamella (151) is semi-circular and the diameter size is the same with the inner wall diameter of discharge pipeline (13), the cambered surface of first flow control lamella (151) and the inner wall sealing connection of discharge pipeline (13), second flow control lamella (152) fixed connection is close to the port of discharge pipeline (13) at flow control pipeline (14), the shape of second flow control lamella (152) is for semi-circular and the inner wall diameter size and flow control pipeline (14) diameter is the same, the flow control lamella (152) is the same with the inner wall diameter of flow control pipeline (14), the flow control lamella (152) is connected with the cambered surface of second flow control lamella (151) each other.

2. A shut-off valve to facilitate the regulation of flow as defined in claim 1, wherein: first joint groove (141) have been seted up in flow control pipeline (14) on the terminal surface with ejection of compact pipeline (13) contact, ejection of compact pipeline (13) be provided with first joint groove (141) matched with first joint ring (131) at the terminal surface with flow control pipeline (14) contact, be provided with first sealing washer (132) between first joint ring (131) and first joint groove (141).

3. A shut off valve for facilitating the regulation of flow as claimed in claim 1, wherein: one end that flow control pipeline (14) kept away from ejection of compact pipeline (13) is rotated and is connected with connecting pipe (16), the terminal surface of connecting pipe (16) and flow control pipeline (14) contact is provided with second joint groove (161), the terminal surface of flow control pipeline (14) and connecting pipe (16) contact is provided with second joint ring (142) with second joint groove (161) matched with, be provided with second sealing washer (143) between second joint ring (142) and second joint groove (161).

4. A shut-off valve to facilitate the regulation of flow as defined in claim 3, wherein: the one end that flow control pipeline (14) was kept away from in connecting pipe (16) sets up spacing step (162), be equipped with third sealing washer (163) on spacing step (162), be provided with internal thread (164) between the port that flow control pipeline (14) was kept away from in spacing step (162) and connecting pipe (16).

5. A shut-off valve to facilitate the regulation of flow as claimed in claim 1 or 2, wherein: discharge pipeline (13) has seted up curved spacing groove (133) on keeping away from one side lateral wall of first flow control lamella (151), spacing groove (133) radian is semi-circular, the lateral wall of flow control pipeline (14) is equipped with stopper (144), stopper (144) are L shape, the one end and flow control pipeline (14) fixed connection of stopper (144), the other end card of stopper (144) is located in spacing groove (133).

6. A shut off valve as defined in claim 5 to facilitate flow adjustment, wherein: the limiting block (144) is provided with a first groove (1441) on the end face towards the bottom of the limiting groove (133), the bottom of the limiting groove (133) is provided with a plurality of second grooves (1331) which are uniformly distributed, a spring (1332) and a steel ball (1333) are arranged in the second groove (1331), the steel ball (1333) is connected above the spring (1332), and the steel ball (1333) is used for being clamped with the first groove (1441).

7. A shut off valve as defined in claim 6 for facilitating flow adjustment, wherein: and a flow prompt mark (134) is arranged on the outer side wall of the discharge pipeline (13).

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