CN212080253U

CN212080253U - Micro-resistance slow-closing silencing check valve

Info

Publication number: CN212080253U
Application number: CN202020793072.7U
Authority: CN
Inventors: 项有钤; 项光宽; 项光远; 梁鸿铭
Original assignee: Zhejiang Longzhu Valve Technology Co ltd
Current assignee: Zhejiang Longzhu Valve Technology Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2020-12-04
Anticipated expiration: 2030-05-13

Abstract

The utility model provides a hinder slowly-closing noise elimination check valve a little, includes the valve body, one side that the inside of valve body is located the guide pillar is provided with the valve clack, the valve clack passes through guide pillar and valve body swing joint, one side fixed mounting of valve clack has the valve plug, the opposite side of valve clack is provided with vertical guide rail, is equipped with vertical slider on the vertical guide rail, and vertical slider one side is fixed with horizontal elastic rod, installs horizontal slider on the horizontal elastic rod, and horizontal slider lateral part is fixed with the nut, and nut connecting screw rod, screw rod connecting rod, the outer end both sides of horizontal elastic rod are equipped with the gyro wheel, and the upper and lower both sides of gyro wheel are equipped with respectively and move the inclined guide rail to the right side and. The utility model discloses can adjust the aperture that the valve clack slowly closed, reach and both prevent the motor reversal and weaken the effect of water hammer, still accessible people are for closing the valve clack, realize the purpose of non return.

Description

Micro-resistance slow-closing silencing check valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a little hinder slowly closes noise elimination check valve.

Background

At present, the micro-resistance slow-closing silencing check valve is used in the outlet of industrial and urban water supply and drainage pipeline, high-rise residence, high-rise hotel and pressurized water pump, and is mainly composed of valve body, valve clack, buffer device and micro-regulation valve.

The invention discloses a micro-resistance slow-closing silencing check valve in Chinese patent No. CN201911045090.5, which is provided with a first magnetic button, a second magnetic button, a guide post and a spring, wherein after water flow stops, the spring can push a valve clack back to the original position, meanwhile, the valve clack can drive the first magnetic button to approach to the second magnetic button on one side of a fixed block in the moving process, the first magnetic button and the second magnetic button are opposite in the same level, certain repulsion force can be generated when the first magnetic button and the second magnetic button approach to each other, when the spring is damaged or the elasticity coefficient is reduced, the repulsion force generated between the first magnetic button and the second magnetic button can push the valve clack back to the original position, and the use of the silencing check valve is prevented from being influenced by the double guarantee of the spring and the magnetic buttons. The invention has the following defects: 1. in the process that the valve clack is pushed back to the original position, the repulsion force generated between the first magnetic button and the second magnetic button is rapidly reduced, and the moving effect of the valve clack is poor; 2. the repulsion force generated between the first magnetic button and the second magnetic button and the elasticity of the spring cause overlarge resistance, so that the power of the water delivery pump is consumed relatively, and electric energy is wasted; 3. the valve clack is easy to be completely closed, and the opening of the slow closing of the valve clack cannot be adjusted, so that the motor is easy to reverse and a destructive water hammer is easy to generate; 4. the check valve is blocked and then disassembled for cleaning, and the valve clack is closed under the action of the spring, so that the cleaning is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a little resistance slowly closes noise elimination check valve, make things convenient for the aperture that the regulating valve clack slowly closed, reach and both prevented the motor and reverse and weaken the effect of water hammer.

The utility model provides a technical scheme that its technical problem adopted: the micro-resistance slow-closing silencing check valve comprises a valve body, wherein two joints are arranged at two ends of the valve body and are symmetrically arranged, an installation seat is arranged at the upper part of the valve body, a valve rod is arranged on the installation seat, a baffle ring is fixedly arranged inside the valve body, two fixed blocks are fixed on the inner wall of the valve body and are symmetrically arranged, a guide pillar is fixedly arranged at one side of each fixed block, a spring is sleeved on the outer surface of the guide pillar, a valve clack is arranged inside the valve body and is positioned at one side of the guide pillar, the valve clack is movably connected with the valve body through the guide pillar, a valve plug is fixedly arranged at one side of the valve clack, a vertical guide rail is arranged at the other side of the valve clack, a vertical sliding block is arranged on the vertical guide rail, a transverse elastic rod is fixed at, the nut connecting screw, the valve rod is connected to the screw rod, the outer end both sides of horizontal elastic rod are equipped with the gyro wheel, and the upper and lower both sides of gyro wheel are equipped with respectively and move the inclined guide rail to the right side and move to the left side, move the inclined guide rail and move to the left side and pass through the bracing piece and connect the fixed block on upper and lower both sides respectively.

Through the technical scheme: the rotary valve rod can drive the screw rod to rotate, the control nut drives the transverse elastic rod to move up and down, when the transverse elastic rod moves up, the roller enters the right-moving inclined guide rail, the roller moves right, the valve clack is pulled to be opened through the transverse elastic rod, the opening degree of the slow closing of the valve clack can be conveniently adjusted, the valve clack is not completely closed, some areas are left for water flow to pass through, and the water hammer pressure is weakened; when the transverse elastic rod moves downwards, the roller enters the left-moving inclined guide rail, the roller moves leftwards, the valve clack is pushed to close through the transverse elastic rod, and after the valve clack is used for a period of time, the spring is easily damaged or the elastic coefficient is reduced, so that the movement of the valve clack is influenced, the use of the silencing check valve is influenced, and the purpose of non-return is realized by manually closing the valve clack at the moment.

In order to further improve, be equipped with the telescoping cylinder between horizontal elastic rod and the vertical slider, be equipped with the piston in the telescoping cylinder, horizontal elastic rod is connected to the piston, the piston inner is close to vertical slider, the piston inner outer end is equipped with buffer spring.

Through the technical scheme: after the valve clack reaches the opening of the slow closing, the buffer spring prevents the valve clack from retracting, so that the valve clack is closed slowly. The valve clack is closed in two steps of fast closing and slow closing, so that the purposes of preventing the motor from reversing and weakening the water hammer pressure are achieved. The right moving distance of the transverse elastic rod determines the opening degree of the slow closing of the valve clack. The longer the opening degree of the slow closing valve is, the larger the water hammer is, but the longer the closing time is, the shorter the opening degree of the slow closing valve is, the destructive water hammer is generated, and therefore, the opening degree valve rod should be carefully adjusted.

In order to further perfect, be connected with the spiral shell lid on the mount pad, the spiral shell lid lower extreme is equipped with the sealing washer, the valve rod is located inside the spiral shell lid, is connected through the fixed pin between valve rod and the spiral shell lid.

Further perfecting, a plurality of through holes are formed in the valve clack, and the through holes are annularly arranged; the valve is characterized in that a first magnetic ring is arranged on one side of the valve clack, a second magnetic ring is arranged on one side of the baffle ring, and the first magnetic ring and the second magnetic ring can be connected in an adsorption mode.

Further perfect, the valve plug is hollow rubber structure, and the interval is equipped with a plurality of guide hole on the periphery of valve plug, and the guide hole is towards valve clack one side.

Further perfect, the left of valve plug is equipped with a conical buffering and glues the head, and the main aspects of head are glued towards the valve plug in the buffering, and the buffering is glued the head side and is equipped with the guiding gutter.

Further perfect, the joint terminal surface is equipped with the mounting groove, is equipped with solid fixed ring in the mounting groove, is connected through horizontal adjusting screw between solid fixed ring and the valve body, be equipped with the flange on the joint outer end.

The utility model discloses profitable effect is: the utility model can drive the screw rod to rotate by rotating the valve rod, the control nut drives the transverse elastic rod to move up and down, when the transverse elastic rod moves up, the roller enters the right-moving inclined guide rail, the roller moves right, the valve clack is pulled to open by the transverse elastic rod, the opening of the slow closing of the valve clack can be conveniently adjusted, the valve clack is not completely closed, some areas are left for water flow to pass through, and the water hammer pressure is weakened; when the transverse elastic rod moves downwards, the roller enters the left-moving inclined guide rail, the roller moves leftwards, the valve clack is pushed to close through the transverse elastic rod, and after the valve clack is used for a period of time, the spring is easily damaged or the elastic coefficient is reduced, so that the movement of the valve clack is influenced, the use of the silencing check valve is influenced, and the purpose of non-return is realized by manually closing the valve clack at the moment.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a schematic structural view of the present invention when the opening of the valve flap is adjusted;

FIG. 5 is a schematic view of the closing valve flap of the present invention when locked;

fig. 6 is a side view of the present invention;

description of reference numerals: 1. the valve body, 11, a stop ring, 12, a fixed block, 13, a guide pillar, 14, a spring, 15, a right-shift inclined guide rail, 16, a left-shift inclined guide rail, 17, a support rod, 18, a second magnetic ring, 2, a joint, 21, a mounting groove, 22, a fixed ring, 23, a transverse adjusting screw, 24, a flange, 3, a mounting seat, 31, a valve rod, 32, a screw rod, 33, a screw cap, 34, a sealing ring, 35, a fixed pin, 4, a valve clack, 41, a vertical guide rail, 42, a vertical slider, 43, a transverse elastic rod, 44, a transverse slider, 45, a nut, 46, a roller, 47, a through hole, 48, a first magnetic ring, 5, a valve plug, 51, a guide hole, 6, a buffer rubber head, 61, a guide groove, 7, a telescopic cylinder, 71, a piston, 72.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

with reference to the accompanying drawings: the embodiment of the invention relates to a micro-resistance slow-closing silencing check valve, which comprises a valve body 1, wherein two joints 2 are arranged at two ends of the valve body 1, the two joints 2 are symmetrically arranged, an installation seat 3 is arranged at the upper part of the valve body 1, a valve rod 31 is arranged on the installation seat 3, a baffle ring 11 is fixedly arranged inside the valve body 1, two fixed blocks 12 are fixed on the inner wall of the valve body 1, the two fixed blocks 12 are symmetrically arranged, a guide pillar 13 is fixedly arranged at one side of each fixed block 12, a spring 14 is sleeved on the outer surface of the guide pillar 13, a valve clack 4 is arranged inside the valve body 1 and positioned at one side of the guide pillar 13, the valve clack 4 is movably connected with the valve body 1 through the guide pillar 13, a valve plug 5 is fixedly arranged at one side of the valve clack 4, a vertical guide rail 41 is arranged at the other side, the transverse elastic rod 43 is provided with a transverse sliding block 44, the lateral part of the transverse sliding block 44 is fixed with a nut 45, the nut 45 is connected with the screw rod 32, the screw rod 32 is connected with the valve rod 31, two sides of the outer end of the transverse elastic rod 43 are provided with rollers 46, the upper side and the lower side of each roller 46 are respectively provided with a right-shift inclined guide rail 15 and a left-shift inclined guide rail 16, and the right-shift inclined guide rail 15 and the left-shift inclined guide rail 16 are respectively connected with the upper fixing block 12 and the lower fixing block 12. A telescopic cylinder 7 is arranged between the transverse elastic rod 43 and the vertical sliding block 42, a piston 71 is arranged in the telescopic cylinder 7, the piston 71 is connected with the transverse elastic rod, the inner end of the piston 71 is close to the vertical sliding block 42, and a buffer spring 72 is arranged at the outer end of the inner end of the piston 71.

The rotary valve rod 31 can drive the screw rod 32 to rotate, the control nut 45 drives the transverse elastic rod 43 to move up and down, when the transverse elastic rod 43 moves up, the roller 46 enters the right-moving inclined guide rail 15, the roller 46 moves right, the valve clack 4 is pulled to be opened through the transverse elastic rod 43, the opening degree of the slow closing of the valve clack 4 can be conveniently adjusted, the valve clack 4 is not completely closed, some area is left for water to pass through, and the water hammer pressure is weakened; when the transverse elastic rod 43 moves downwards, the roller 46 enters the left-moving inclined guide rail 16, the roller 46 moves leftwards, the valve clack 4 is pushed to close through the transverse elastic rod 43, and after the valve clack is used for a period of time, the spring 14 is easily damaged or the elastic coefficient is reduced, so that the movement of the valve clack 4 is influenced, the use of the silencing check valve is influenced, and the purpose of stopping the valve can be realized by manually closing the valve clack 4.

When the valve flap 4 reaches the opening for slow closing, the damper spring 72 hinders the valve flap 4 from retracting, and the valve flap 4 is closed slowly. The valve clack 4 is closed in two steps of fast closing and slow closing, so that the purposes of preventing the motor from reversing and weakening the water hammer pressure are achieved. The right-shift distance of the transverse elastic rod 43 determines the opening degree of the slowly closing valve clack 4. The opening degree of the slow closing is increased and the water hammer is decreased as the length is longer, but the closing time is increased, whereas the opening degree of the slow closing is decreased as the length is shorter, and the water hammer is destructively generated, and therefore the opening degree valve rod 31 should be carefully adjusted.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. The micro-resistance slow-closing silencing check valve comprises a valve body (1), two joints (2) are arranged at two ends of the valve body (1), the two joints (2) are symmetrically arranged, a mounting seat (3) is arranged on the upper portion of the valve body (1), a valve rod (31) is arranged on the mounting seat (3), a baffle ring (11) is fixedly arranged inside the valve body (1), two fixing blocks (12) are fixed on the inner wall of the valve body (1), the two fixing blocks (12) are symmetrically arranged, a guide pillar (13) is fixedly arranged on one side of each fixing block (12), a spring (14) is sleeved on the outer surface of each guide pillar (13), a valve flap (4) is arranged inside the valve body (1) and located on one side of each guide pillar (13), the valve flap (4) is movably connected with the valve body (1) through each guide pillar (13), and a valve plug (5) is fixedly arranged on one, the method is characterized in that: the opposite side of valve clack (4) is provided with vertical guide rail (41), is equipped with vertical slider (42) on vertical guide rail (41), and vertical slider (42) one side is fixed with horizontal elastic rod (43), installs horizontal slider (44) on horizontal elastic rod (43), and horizontal slider (44) lateral part is fixed with nut (45), and nut (45) connecting screw rod (32), screw rod (32) connecting valve rod (31), the outer end both sides of horizontal elastic rod (43) are equipped with gyro wheel (46), and the upper and lower both sides of gyro wheel (46) are equipped with respectively and move inclined guide (15) and move inclined guide (16) on the left side on the right side, move inclined guide (15) and move inclined guide (16) on the left side and connect fixed block (12) on both sides about both sides respectively through bracing piece (17) on the right side.

2. The micro-resistance slow-closing silencing check valve of claim 1, wherein: be equipped with telescopic cylinder (7) between horizontal elastic rod (43) and vertical slider (42), be equipped with piston (71) in telescopic cylinder (7), horizontal elastic rod is connected in piston (71), piston (71) inner is close to vertical slider (42), piston (71) inner outer end is equipped with buffer spring (72).

3. The micro-resistance slow-closing silencing check valve of claim 1, wherein: be connected with spiral shell lid (33) on mount pad (3), spiral shell lid (33) lower extreme is equipped with sealing washer (34), inside valve rod (31) were located spiral shell lid (33), was connected through fixed pin (35) between valve rod (31) and the spiral shell lid (33).

4. The micro-resistance slow-closing silencing check valve of claim 1, wherein: a plurality of through holes (47) are formed in the valve flap (4), and the through holes (47) are annularly arranged; a first magnetic ring (48) is arranged on one side of the valve clack (4), a second magnetic ring (18) is arranged on one side of the baffle ring (11), and the first magnetic ring (48) and the second magnetic ring (18) can be connected in an adsorption mode.

5. The micro-resistance slow-closing silencing check valve of claim 1, wherein: the valve plug (5) is of a hollow rubber structure, a plurality of guide holes (51) are arranged on the circumferential surface of the valve plug (5) at intervals, and the guide holes (51) face one side of the valve clack (4).

6. The micro-resistance slow-closing silencing check valve of claim 1, wherein: the left of valve plug (5) is equipped with a conical buffering and glues head (6), and the big end of buffering gluey head (6) is equipped with guiding gutter (61) towards valve plug (5), buffering gluey head (6) side.

7. The micro-resistance slow-closing silencing check valve of claim 1, wherein: connect (2) terminal surface to be equipped with mounting groove (21), be equipped with in mounting groove (21) and fix ring (22), fix and be connected through horizontal adjusting screw (23) between ring (22) and valve body (1), be equipped with flange (24) on connecting (2) outer end.