CN212296834U

CN212296834U - Pump opening shock absorber of water diaphragm pump

Info

Publication number: CN212296834U
Application number: CN202020573246.9U
Authority: CN
Inventors: 朱利平
Original assignee: Kunming Jizhong Machinery Manufacturing Co ltd
Current assignee: Kunming Jizhong Machinery Manufacturing Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2021-01-05
Anticipated expiration: 2030-04-17

Abstract

The utility model provides a water diaphragm pump mouth shock absorber, which belongs to the technical field of water diaphragm pumps and comprises a pipeline component and a shock absorption component, wherein the pipeline component comprises a first cavity, a spacing ring, a second cavity, a third cavity, an outer pipeline, a damping hole, a first elastic sheet, a second elastic sheet, a bolt and an inner pipeline, the outer pipeline and the inner pipeline are respectively welded on two sides of the spacing ring from top to bottom, the spacing ring is symmetrically provided with the first elastic sheet and the second elastic sheet along the central axis and is fixedly connected with the spacing ring through the bolt, the first elastic sheet and the second elastic sheet divide the inner part of the inner pipeline into the first cavity, the second cavity and the third cavity, and fluid can flow to the second cavity through the damping hole of the first elastic sheet when accumulating a certain degree in the first cavity, then flows from the second chamber to the third chamber through the damping hole of the second elastic sheet, and finally flows out from the pipeline opening at the other side.

Description

Pump opening shock absorber of water diaphragm pump

Technical Field

The utility model relates to a water diaphragm pump technical field particularly, relates to water diaphragm pump mouth shock absorber.

Background

The diaphragm pump can efficiently and reliably convey slurry or paste with different chemical and mechanical corrosivity and concentration and high-viscosity fluid, so that the diaphragm pump is widely applied to conveying of various chemicals and sludge in sewage treatment. In the operation process of the diaphragm pump, due to the intermittence of fluid suction and discharge, the diaphragm pump can efficiently and reliably convey slurry or paste with different chemical and mechanical erosion properties and concentrations and high-viscosity fluid, so that the diaphragm pump is widely applied to conveying of sludge in various chemicals and sewage treatment. In the operation process of the diaphragm pump, due to the discontinuity of fluid suction and discharge, the pressure and the flow of fluid in the pump port and the connecting pipeline thereof are periodically changed to generate exciting force which changes along with time, and the pump port and the connecting pipeline thereof generate certain mechanical vibration response under the action of the exciting force, so that the larger the vibration of the pump port and the connecting pipeline thereof is, the more the pump port is easy to crack and the fatigue damage of the connecting pipeline thereof is caused, thereby the leakage is generated.

SUMMERY OF THE UTILITY MODEL

In order to compensate the above deficiency, the utility model provides a water diaphragm pump mouth shock absorber aims at improving the problem that current water diaphragm pump mouth fluid pressure produced the vibration and causes the damage and take place the seepage.

The utility model discloses a realize like this:

the pump mouth damper of the water diaphragm pump comprises

The pipeline assembly comprises a first cavity, a spacer ring, a second cavity, a third cavity, an outer pipeline, a damping hole, a first elastic sheet, a second elastic sheet, a bolt and an inner pipeline, wherein the outer pipeline and the inner pipeline are respectively welded on two sides of the spacer ring from top to bottom, the first elastic sheet and the second elastic sheet are symmetrically arranged on the spacer ring along a central axis and are fixedly connected with the spacer ring through the bolt, the first elastic sheet and the second elastic sheet divide the inner part of the inner pipeline into the first cavity, the second cavity and the third cavity, and the damping hole is formed in one side of each of the first elastic sheet and the second elastic sheet;

damping subassembly, damping subassembly comprises piston rod, sleeve, hydraulic chamber, spring, power piston, air vent, pneumatic chamber, second pressure plate, limiting plate, liquid backward flow ware and elastic membrane, telescopic both sides are provided with the liquid backward flow ware, be provided with in the liquid backward flow ware the elastic membrane, telescopic axis department is provided with the limiting plate, the limiting plate will upper portion in the sleeve separates into the hydraulic chamber, the piston rod passes the sleeve from last to bottom in proper order with the top of limiting plate, the one end of piston rod welds in the top of second pressure plate, the bottom of second pressure plate with the one end fixed connection of spring, the other end of spring with the top fixed connection of power piston, power piston will the lower part in the sleeve is separated into the pneumatic chamber, the sleeve is located the both sides of pneumatic chamber have been seted up the air vent, the outer surface of the piston rod is welded with the first pressure plate and is located in the hydraulic chamber.

The utility model discloses an in the embodiment, telescopic bottom welds in the top of base, the bottom of base is seted up threaded hole.

In an embodiment of the present invention, one end of the piston rod is welded to the outer surface of the inner pipe, and the bottom of the base is connected to one side of the outer pipe by a screw.

In an embodiment of the present invention, the flange plates are disposed on both sides of the pipe assembly.

In an embodiment of the present invention, the inner surface of the inner pipe is provided with a waterproof layer and a damping pad from inside to outside.

In an embodiment of the present invention, the piston rod is connected to the sleeve and the joint of the limiting plate is provided with the sealing ring.

In an embodiment of the present invention, the damping holes of the first elastic piece and the second elastic piece are formed in a staggered manner.

The utility model has the advantages that: the utility model discloses a water diaphragm pump mouth shock absorber that obtains through above-mentioned design, the welding of spacer ring both sides is from last to welding interior pipeline and outer pipeline respectively down, interior pipeline and outer pipeline form the clearance, set up first flexure strip and second flexure strip along spacer ring axis, fix the spacer ring through the bolt, first flexure strip and second flexure strip are the dislocation and set up the damping hole, the both sides of pipeline subassembly are all provided with the ring flange and are used for connecting the outside pipeline, interior pipeline and outer pipeline clearance set up the damping subassembly, the surface welding of piston rod and interior pipeline, base and outer pipeline threaded connection, fluid flows to first cavity from the pipeline mouth of one side, the fluid produces the vibration makes the piston rod promote first pressure plate and second pressure plate, the indoor volume of first pressure plate compression hydraulic pressure, cause the volume to flow back to in the liquid backward flow ware, second pressure plate compression spring, the compression of spring promotes the power piston and extrudees the indoor gas of atmospheric pressure, gas is discharged from the air vent, thereby reach the purpose of damping, conversely, spring return makes pressure piston upward movement, inhale gas to the atmospheric pressure room from the air vent, spring return still can promote second pressure plate upward movement to the limiting plate, and the second pressure plate drives the piston rod and resets, cause first pressure plate upward movement, the liquid flow direction hydraulic chamber of liquid backward flow ware, the liquid in the hydraulic chamber can play the cushioning effect to the reseing of piston rod, prevent that the piston rod from causing the damage to the internal pipeline, fluid accumulates certain degree at first cavity and can flow to the second cavity through the damping hole of first flexure strip, flow to the third cavity through the damping hole of second flexure strip from the second cavity again, finally flow from the pipeline mouth of opposite side.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a pump orifice damper of a water diaphragm pump according to an embodiment of the present invention;

FIG. 2 is a side view of a tubing assembly provided by an embodiment of the present invention;

fig. 3 is a schematic structural view of a vibration damping assembly according to an embodiment of the present invention;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

In the figure: 1-pipe assembly, 101-first chamber, 102-spacer ring, 103-second chamber, 104-third chamber, 105-outer pipe, 106-damping hole, 107-first elastic sheet, 108-second elastic sheet, 109-bolt, 110-inner pipe, 2-vibration damping assembly, 201-piston rod, 202-sleeve, 203-first pressure plate, 204-hydraulic chamber, 205-spring, 206-power piston, 207-vent hole, 208-pneumatic chamber, 209-pressure plate, 210-limiting plate, 211-liquid reflux device, 212-elastic membrane, 3-flange plate, 4-vibration damping pad, 5-waterproof layer, 6-sealing ring, 7-threaded hole and 8-base.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but 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" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a pump opening vibration damper of a water diaphragm pump comprises a pipeline assembly 1 and a vibration damping assembly 2.

Referring to fig. 1, a pipe assembly 1 is composed of a first chamber 101, a spacer ring 102, a second chamber 103, a third chamber 104, an outer pipe 105, a damping hole 106, a first elastic sheet 107, a second elastic sheet 108, a bolt 109 and an inner pipe 110, wherein the outer pipe 105 and the inner pipe 110 are respectively welded to two sides of the spacer ring 102 from top to bottom, the spacer ring 102 is symmetrically provided with the first elastic sheet 107 and the second elastic sheet 108 along a central axis and is fixedly connected with the spacer ring 102 through the bolt 109, the first elastic sheet 107 and the second elastic sheet 108 divide the interior of the inner pipe 110 into the first chamber 101, the second chamber 103 and the third chamber 104, one side of the first elastic sheet 107 and one side of the second elastic sheet 108 are respectively provided with the damping hole 106, the damping holes 106 of the first elastic sheet 107 and the second elastic sheet 108 are staggered, the first elastic sheet 107 blocks fluid in the first chamber 101, and the fluid flows to the second chamber 103 through the damping hole 106 of the first elastic sheet 107 after accumulating to a certain degree, finally, the fluid flows to the third chamber 104 through the damping holes 106 of the second elastic piece 108 to be discharged, so that the flow rate of the fluid is reduced, the pressure inside the pipeline is reduced, and the pipeline is prevented from being damaged.

Referring to fig. 3, the vibration damping module 2 is composed of a piston rod 201, a sleeve 202, a hydraulic chamber 204, a spring 205, a power piston 206, vent holes 207, an air pressure chamber 208, a second pressure plate 209, a limit plate 210, a liquid reflux device 211 and an elastic membrane 212, wherein the liquid reflux device 211 is arranged on two sides of the sleeve 202, the elastic membrane 212 is arranged in the liquid reflux device 211, the limit plate 210 is arranged on the central axis of the sleeve 202, the upper portion in the sleeve 202 is divided into the hydraulic chamber 204 by the limit plate 210, the piston rod 201 sequentially penetrates through the top portions of the sleeve 202 and the limit plate 210 from top to bottom, one end of the piston rod 201 is welded on the top portion of the second pressure plate 209, the bottom portion of the second pressure plate 209 is fixedly connected with one end of the spring 205, the other end of the spring 205 is fixedly connected with the top portion of the power piston 206, the lower portion in the, the outer surface of the piston rod 201 is welded with a first pressure plate 209203 and is located in the hydraulic chamber 204.

Referring to fig. 2-3, the bottom of the sleeve 202 is welded to the top of the base 8, the bottom of the base 8 is formed with a threaded hole 7, one end of the piston rod 201 is welded to the outer surface of the inner pipe 110, and the bottom of the base 8 is in threaded connection with one side of the outer pipe 105.

Referring to fig. 1-2, flanges 3 are disposed on both sides of the pipe assembly 1 to facilitate connection with external pipes or other devices.

Referring to fig. 2, the inner surface of the inner pipe 110 is provided with a waterproof layer 5 and a damping pad 4 from inside to outside, and when fluid flows into the inner pipe 110, the damping pad 4 primarily damps vibration, and the waterproof layer 5 isolates water, so that corrosion caused by long-time soaking of the damping pad 4 is avoided, and the service life of the damping pad 4 is prolonged.

Referring to fig. 3, the joints between the piston rod 201 and the sleeve 202 and between the piston rod and the stopper plate 210 are provided with the sealing rings 6 to prevent the liquid in the hydraulic chamber 204 from leaking.

The working principle of the pump opening shock absorber of the water diaphragm pump is as follows: an inner pipeline 110 and an outer pipeline 105 are respectively welded on two sides of a spacer ring 102 from top to bottom, a gap is formed between the inner pipeline 110 and the outer pipeline 105, a first elastic sheet 107 and a second elastic sheet 108 are arranged along the central axis of the spacer ring 102, the first elastic sheet 107 and the second elastic sheet 108 are fixed through bolts 109, damping holes 106 are formed in the first elastic sheet 107 and the second elastic sheet 108 in a staggered mode, flange plates 3 are arranged on two sides of a pipeline assembly 1 and used for connecting with an outer pipeline, a damping assembly 2 is arranged in the gap between the inner pipeline 110 and the outer pipeline 105, a piston rod 201 is welded on the surface of the inner pipeline 110, a base 8 is in threaded connection with the outer pipeline 105, fluid flows to a first chamber 101 from a pipeline port on one side, the piston rod 201 pushes a first pressure plate 209203 and a second pressure plate 209 due to vibration of the fluid, the first pressure plate 209203 compresses the volume in a hydraulic chamber 204, so that, the second pressure plate 209 compresses the spring 205, the compression of the spring 205 pushes the power piston 206 to press the gas in the gas pressure chamber 208, the gas is exhausted from the vent hole 207, thereby achieving the purpose of vibration damping, conversely, the spring 205 is reset to move the pressure piston upwards, the gas is sucked from the vent hole 207 to the gas pressure chamber 208, the reset of the spring 205 also pushes the second pressure plate 209 to move upwards to the limit plate 210, and the second pressure plate 209 drives the piston rod 201 to reset, so that the first pressure plate 209203 moves upwards, the liquid in the liquid return device 211 flows to the hydraulic chamber 204, the liquid in the hydraulic chamber 204 can buffer the reset of the piston rod 201, thereby preventing the piston rod 201 from damaging the inner pipe 110, the fluid accumulated in the first chamber 101 to a certain extent can flow to the second chamber 103 through the damping hole 106 of the first elastic sheet 107, and then flows from the second chamber 103 to the third chamber 104 through the damping hole 106 of the second elastic sheet 108, finally, the fluid flows out from the pipeline opening on the other side, the inner pipeline 110 is sequentially provided with the vibration damping pad 4 and the waterproof layer 5 from inside to outside, the vibration damping pad 4 performs primary vibration damping when the fluid passes through the inner pipeline 110, the impact force on the inner pipeline 110 is reduced, water isolation is performed through the waterproof layer 5, corrosion caused by long-time soaking of the vibration damping pad 4 is avoided, the service life of the vibration damping pad 4 is prolonged, the vibration damping component 2 can further damp the exciting force generated by the fluid, through a twice vibration damping mode, the exciting force is offset, the phenomenon that the pump opening and the pipeline are damaged due to fatigue and cause seepage is avoided, a double-damping-hole 106 structure is further adopted, throttling is well performed, buffering and vibration-proof effects are achieved, and the.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The pump mouth vibration damper of the water diaphragm pump is characterized by comprising

The pipeline assembly (1) is composed of a first chamber (101), a spacer ring (102), a second chamber (103), a third chamber (104), an outer pipeline (105), a damping hole (106), a first elastic sheet (107), a second elastic sheet (108), a bolt (109) and an inner pipeline (110), wherein the outer pipeline (105) and the inner pipeline (110) are respectively welded on two sides of the spacer ring (102) from top to bottom, the spacer ring (102) is symmetrically provided with the first elastic sheet (107) and the second elastic sheet (108) along a central axis and is fixedly connected with the spacer ring (102) through the bolt (109), and the first elastic sheet (107) and the second elastic sheet (108) divide the interior of the inner pipeline (110) into the first chamber (101), the second chamber (103) and the third chamber (104), one side of each of the first elastic piece (107) and the second elastic piece (108) is provided with the damping hole (106);

damping subassembly (2), damping subassembly (2) comprises piston rod (201), sleeve (202), hydraulic pressure room (204), spring (205), power piston (206), air vent (207), atmospheric pressure room (208), first pressure plate (209) (203), second pressure plate (209), limiting plate (210), liquid backward flow ware (211) and stretch film (212), the both sides of sleeve (202) are provided with liquid backward flow ware (211), be provided with in liquid backward flow ware (211) stretch film (212), the axis department of sleeve (202) is provided with limiting plate (210), limiting plate (210) will upper portion in sleeve (202) is separated into hydraulic pressure room (204), piston rod (201) from last to passing in proper order down sleeve (202) with the top of limiting plate (210), the one end of piston rod (201) weld in the top of second pressure plate (209), the bottom of second pressure plate (209) with the one end fixed connection of spring (205), the other end of spring (205) with the top fixed connection of power piston (206), power piston (206) will lower part in sleeve (202) is separated into atmospheric pressure room (208), sleeve (202) are located the both sides of atmospheric pressure room (208) have been seted up ventilation hole (207), the outer skin weld of piston rod (201) has first pressure plate (209) (203), and is located hydraulic pressure room (204).

2. The water diaphragm pump mouth absorber according to claim 1, wherein the bottom of the sleeve (202) is welded to the top of the base (8), and the bottom of the base (8) is provided with a threaded hole (7).

3. The water diaphragm pump mouth damper according to claim 2, wherein one end of the piston rod (201) is welded to the outer surface of the inner pipe (110), and the bottom of the base (8) is in threaded connection with one side of the outer pipe (105).

4. A water membrane pump mouth damper according to claim 1, characterized in that the pipe assembly (1) is provided with flanges (3) on both sides.

5. The water diaphragm pump orifice damper according to claim 1, characterized in that the inner surface of the inner pipe (110) is provided with a waterproof layer (5) and a damping pad (4) from inside to outside, respectively.

6. The water diaphragm pump mouth damper according to claim 1, wherein the connection of the piston rod (201) with the sleeve (202) and the limiting plate (210) is provided with a sealing ring (6).

7. The water diaphragm pump orifice vibration absorber of claim 1, wherein the damping holes (106) of the first elastic piece (107) and the second elastic piece (108) are arranged in a staggered manner.