WO2018082066A1

WO2018082066A1 - Pipeline diaphragm pump

Info

Publication number: WO2018082066A1
Application number: PCT/CN2016/104781
Authority: WO
Inventors: 肖立峰
Original assignee: 肖立峰
Priority date: 2016-11-04
Filing date: 2016-11-04
Publication date: 2018-05-11

Abstract

A pipeline diaphragm pump. The pipeline diaphragm pump is provided with a pump housing (10). A cylindrical inner cavity (10A) is formed in the pump housing (10). Multiple arc-shaped pipeline accommodating cavities (10B) are formed in the side wall of the cylindrical inner cavity (10A). An elastic hose (30) is disposed in each of the multiple pipeline accommodating cavities (10B). The two ends of each elastic hose (30) are respectively connected to a liquid input pipe connector (21) and a liquid output pipe connector (22). A one-way valve (40) is disposed at each of the two ends of each elastic hose (30). An inclined offset shaft (50) is disposed in the pump housing (10). The outer portion of the inclined offset shaft (50) is connected to a swing wheel (60) by means of a third bearing (73). A flange (62) is disposed on the outer side of the swing wheel (60) and extends to a position between the elastic hoses (30). When the inclined offset shaft (50) is driven by a motor to rotate, the swing wheel (60) is made to do cone swinging, the elastic hose (30) is extruded or released by means of the flange (62) of the swing wheel (60), and liquid is discharged out and sucked in one direction by means of the one-way valve (40). The pipeline diaphragm pump can be manufactured into a single stage or multiple stages and has the characteristics of being good in liquid flow state, high in work efficiency, convenient to clean and disinfect, long in service life, low in cost, easy to produce and manufacture and the like.

Description

Pipe diaphragm pump

[Technical Field]

The invention relates to a liquid pump, in particular to a pipeline diaphragm pump which is simple in structure, simple in manufacture, long in service life and low in production cost.

【Background technique】

A pump is a machine that delivers or pressurizes a liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. Pumps are widely used to transport liquids such as water, oil, acid and alkali, emulsions, suspoemulsions and liquid metals. They can also transport liquids, gas mixtures and liquids containing suspended solids. Conventional pumps include centrifugal pumps, diaphragm pumps, piston pumps, peristaltic pumps, and the like. In the fields of chemical, food, pharmaceutical, bioengineering, etc., there are high requirements for flow pulsation and flow accuracy, while conventional pumps cannot fully meet the requirements, and product quality cannot be guaranteed during use. The traditional peristaltic pump (pipe pump) sucks or discharges liquid through the crushing point of the pipe. Although it has the characteristics of easy cleaning and disinfection and low cost, it is used due to the force and fatigue of the crushing point of the pipe. The life is low, and it has defects such as poor flow. Although the traditional diaphragm pump has a good fluidity and a longer life than a peristaltic pump, it is complicated to manufacture, high in cost, and is not conducive to cleaning and disinfection.

[Summary of the Invention]

The invention aims to solve the above problems, and provides a pipeline diaphragm pump which has good liquid flow state, high work efficiency, convenient cleaning and disinfection, long service life, low cost and easy manufacture.

In order to achieve the above object, the present invention provides a pipeline diaphragm pump, which is provided with a pump casing having a cylindrical inner cavity therein, and four concave portions are provided on a side wall of the cylindrical inner cavity. The arc-shaped duct accommodating chamber is provided with an elastic hose in each of the four duct accommodating cavities, and the phase difference between the two elastic hoses on the same plane is 180 degrees, and two elasticities between different planes The phase difference between the hoses is 90 degrees, and a liquid input pipe joint and a liquid output pipe joint are connected outside the pump casing, and both ends of each elastic hose are respectively sealed with the liquid input pipe joint and the liquid output pipe joint. The connection, the liquid input pipe joint and the liquid output pipe joint communicate with the four elastic hoses, and a sealing valve is integrally connected at both ends of each elastic hose, and a diagonal deviation is arranged in the inner cavity of the pump casing a shaft connected to the motor, the outer portion of the inclined shaft being connected to the balance by a third bearing, the outer side of the balance body of the balance being provided with a flange extending into the duct receiving cavity Between the four elastic hoses, when the motor drives the oblique axis to rotate, the balance wheel swings in a cone, and the elastic hose is squeezed or loosened by the flange during the swinging process, so that the liquid is discharged one way through the one-way valve. And inhalation, the liquid in the four flexible hoses with different phases is connected through the liquid output pipe joint, and the liquid in the four flexible hoses with different phases is connected through the liquid input pipe joint.

The pump casing is formed by the first casing and the second casing being connected to each other. The first casing and the second casing are rectangular block bodies, and the first casing and the second casing are respectively provided with bearings at the center of one end thereof. a first bearing and a second bearing are respectively disposed in the bearing hole, and the first housing and the second housing are disposed inside the bearing hole to be provided with a cylindrical cavity, and the outer side of the cylindrical cavity is provided with an arc groove The cylindrical half-cavities of the first housing and the second housing are combined to form a cylindrical inner cavity, and the arcuate grooves of the first housing and the second housing are coupled to form the duct receiving cavity.

The liquid input pipe joint and the liquid output pipe joint are strip-shaped bodies corresponding to the side shape of the pump casing, and are provided with a main passage closed at one end with an overhanging joint and at both ends thereof and the main passage Four flexible hose connections for communication.

The oblique axis includes a cylindrical body of two coaxial lines at both ends and an inclined cylinder between the two cylinders. The upper end of the inclined cylinder is provided with a first shoulder and a second shoulder, and the lower end of the inclined cylinder is provided. There is a concave step, the axis of the inclined cylinder intersecting the axis of the two cylinders in the middle of the cylindrical inner cavity.

The balance wheel comprises a disc-shaped body, a flange and a cover plate, wherein the disc-shaped body is a cylindrical disc-shaped body provided with a bearing hole, and a third bearing is fixed in the bearing hole through the cover plate, and the flange is formed by a disk shape The center of the body extends outward.

The two ends of the oblique axis are respectively supported by the first bearing and the second bearing, the balance wheel is supported by a third bearing mounted in the bearing hole, and the third bearing is limited by the second shoulder of the oblique axis , said A bearing and a second bearing are respectively limited by the first shoulder and the step.

The outer portion of the elastic hose is wound with a high-strength fiber rope, and the high-strength fiber rope is impregnated with grease.

The one-way valve comprises a valve body, a valve cover and a diaphragm, wherein one side of the valve body is provided with a concave curved surface, and the other side is provided with a liquid inlet hole, and a small passage is filled between the curved surface and the liquid inlet hole The hole has a curved surface on the outer side surface of the valve body, and one end of the valve cover is provided with a liquid outlet hole, and the valve cover is connected with the valve body. The diaphragm is composed of a circular diaphragm body and a connecting column, and the connecting column is formed. Connected to the bonnet, the diaphragm body is mounted on the curved surface of the valve body.

The invention also provides a multi-stage pipeline diaphragm pump, characterized in that the pipeline diaphragm pump is provided with a pump casing, the pump casing has a cylindrical inner cavity, and a plurality of groups are arranged on the side wall of the cylindrical inner cavity And each group comprises four concave arc-shaped duct accommodating cavities, one elastic hose is arranged in each of the plurality of pipeline accommodating cavities, and a liquid input pipe joint and a liquid output pipe joint are connected outside the pump casing, Two ends of each elastic hose are respectively connected to the liquid input pipe joint and the liquid output pipe joint, and the liquid input pipe joint and the liquid output pipe joint are sealingly connected with the plurality of elastic hoses, and each elastic hose is The two ends are sealed and connected with a one-way valve, and a multi-section oblique axis is arranged in the inner cavity of the pump casing, the multi-section oblique-bias shafts are connected to each other and connected to the motor, and the multi-section oblique-axis externally passes through the third bearing Each connection has a balance wheel, and the phase difference between the plurality of balance wheels is

Where N is the number of balance wheels, and the balance body of the balance wheel is provided with a flange outside, and the flange extends between the four elastic hoses in the set of pipe receiving cavities, when the motor drives the oblique axis When rotating, the balance wheel is oscillated in a cone shape, and the elastic hose is squeezed or loosened by the flange during the swinging process, so that the liquid is discharged and sucked in one direction through the one-way valve, and the liquid in the plurality of elastic hoses is discharged through the liquid. The pipe joints confluent output, and the liquid in the plurality of elastic hoses is connected through the liquid input pipe joint.

The pump casing is formed by a first casing, a second casing and at least one intermediate casing located between the first casing and the second casing, the first casing, the second casing and the intermediate casing The body is a block body, and one ends of the first housing and the second housing are respectively provided with bearing holes, and the bearing holes are respectively provided with a first bearing and a second bearing, the first housing, the second housing and the middle The housing is located inside the bearing hole and is provided with cylindrical cavities which are opposite to each other. The outer side of the cylindrical cavity is provided with a plurality of arc-shaped troughs, the first shell The cylindrical cavity of the body, the second casing and the intermediate casing are combined to form a cylindrical inner cavity, the arcuate groove body of the first casing and the intermediate casing, and the arcuate groove body of the second casing and the intermediate casing The pairing forms the duct receiving cavity.

The cylindrical cavity is coaxial with the bearing hole of the first casing, the second casing and the intermediate casing, and the arcuate groove body is composed of an arc-shaped groove body and a turning connection portion at both ends of the body of the groove body. Wherein the turning connection portion extends to an outer surface of the first casing, the second casing and the intermediate casing, the groove body and the bearing hole and the intermediate casing of the first casing and the second casing Coaxial.

The liquid input pipe joint and the liquid output pipe joint are strip-shaped bodies corresponding to the side shape of the pump casing, and are provided with a main passage closed at one end with an overhang joint and on one side thereof and the main passage Connected 4 x N flexible hose connections, where N is the number of balances.

The multi-section skew axis includes at least a first skew axis and a second skew axis, wherein the first skew axis includes an inclined cylinder and a reduced diameter shaft of one body, and a key groove is provided on the reduced diameter shaft, The upper end of the inclined cylinder is provided with a first shoulder and a second shoulder. The first oblique shaft is mounted in the cylindrical cavity of the pump casing; the second oblique axis includes a cylinder at one end thereof and another The inclined cylinder at one end is provided with a key groove on the inner wall of the hole, and the second oblique axis is connected to the reduced diameter shaft of the first oblique axis by a key, respectively on the first oblique axis and the second oblique axis A first balance wheel and a second balance wheel are mounted.

One end of the first oblique axis of the multi-segment oblique axis is supported by the first bearing, and one end of the second oblique axis is supported by the second bearing; the first balance wheel and the second balance wheel are respectively mounted on the first oblique A third bearing support on the off-axis and the second skew axis.

The one-way valve comprises a valve body, a valve cover and a diaphragm, wherein one side of the valve body is provided with a concave curved surface, and the other side is provided with a liquid inlet hole, and a small passage is filled between the curved surface and the liquid inlet hole Hole, the outer side of the valve body is curved, One end of the valve cover is provided with a liquid outlet hole, and the valve cover is connected with the valve body. The diaphragm is composed of a circular diaphragm body and a connecting column, and the connecting column is connected with the valve cover, and the diaphragm body is mounted. On the curved surface of the valve body.

The contribution of the present invention is that it effectively overcomes the drawbacks of conventional peristaltic pumps and diaphragm pumps. The plurality of elastic hoses of the pipeline diaphragm pump of the invention control the backflow through the one-way valve with good sealing performance, so that it is not necessary to prevent the liquid from flowing back through the crushing point, and the high-strength fiber rope is wound on the outside of the elastic hose, thereby preventing The expansion deformation of the elastic hose and the wear due to the action of the balance wheel, and the lubrication of the elastic hose due to the immersion of the grease in the fiber rope, and greatly improving the pressure resistance of the elastic hose, And greatly improve the service life of the hose, reducing the operating costs of the equipment. The pipeline diaphragm pump of the invention adopts an inclined balance wheel structure, so that when the motor drives the oblique axis to rotate, the balance wheel is driven to swing and squeeze or loosen the hose, so that the liquid is discharged and sucked in one direction through the one-way valve. The liquid in the hoses with different phases is converged and outputted through the liquid output pipe joint, and the liquid in the hoses with different phases is confluently input through the liquid input pipe joint, thereby realizing fluid transportation. The pipeline diaphragm pump of the present invention can be either single-stage or multi-stage, thereby enabling high-flow liquid delivery. The pipeline diaphragm pump of the invention makes the flow state of the liquid better, the working efficiency of the pump is higher, the service life is longer, and the working pressure is higher. In addition, the pipeline diaphragm pump of the invention has the advantages of convenient cleaning, sterilization and sterilization, simple structure, easy implementation and wide application range.

[Description of the Drawings]

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing the entire structure of a first embodiment of the present invention.

Fig. 2 is a cross-sectional view taken along line A of Fig. 1;

Figure 3 is a B-direction view of Figure 2 .

Fig. 4 is a view taken along line C of Fig. 2;

Figure 5 is a schematic view showing the structure of a pump casing according to Embodiment 1 of the present invention, wherein Figure 5A is a bottom view of the first casing, Figure 5B is a view taken in the direction of D in Figure 5A, Figure 5C is a side view of Figure 5A, and Figure 5D is a second view. The top view of the housing, FIG. 5E is an E-direction view of FIG. 5D, and FIG. 5F is a side view of FIG. 5D.

Fig. 6 is a cross-sectional view showing the oblique axis structure of the first embodiment of the present invention.

Figure 7 is a cross-sectional view showing the structure of a balance wheel of Embodiment 1 of the present invention.

Fig. 8 is a view showing the structure of a liquid input pipe joint and a liquid output pipe joint according to Embodiment 1 of the present invention, wherein Fig. 8A is a front view, and Fig. 8B is a view taken along line F of Fig. 8A.

Fig. 9 is an outline view of a pipe diaphragm pump of a second embodiment of the present invention.

Figure 10 is a plan view of Figure 9.

Figure 11 is a view taken along the line A in Figure 10 .

Figure 12 is a B-direction view of Figure 11 .

Figure 13 is a plan view of a second embodiment of the present invention, wherein Figure 13A is a plan view of Figure 9, Figure 13B is a view taken along line A of Figure 13A, and Figure 13C is a view taken along line B of Figure 13B.

Figure 14 is a schematic view showing the structure of a pump casing according to Embodiment 2 of the present invention, wherein Figure 14A is a first casing sectional view, Figure 14B is a bottom view of Figure 14A, Figure 14C is a bottom view of Figure 14B, and Figure 14D is a second casing. Figure 14E is a plan view of Figure 14C, Figure 14F is a plan view of Figure 14E, Figure 14G is a cross-sectional view of the intermediate casing, Figure 14H is a plan view of Figure 14G, and Figure 14I is a top view of Figure 14H.

Fig. 15 is a schematic view showing the structure of a multi-segment oblique axis according to a second embodiment of the present invention, wherein Fig. 15A is a schematic view of a first oblique off-axis structure, and Fig. 15B is a schematic view showing a second oblique off-axis structure.

Figure 16 is a cross-sectional view showing the structure of a balance wheel according to a second embodiment of the present invention.

Figure 17 is a cross-sectional view showing the structure of a check valve according to a second embodiment of the present invention.

Figure 18 is a schematic view showing the structure of a liquid input pipe joint and a liquid output pipe joint of the present invention, wherein Figure 18A is a front view and Figure 18B is a view taken along line C of Figure 18A.

【detailed description】

The following examples are intended to further illustrate and explain the present invention and are not to be construed as limiting.

Example 1

1 to 12 show the structure of a single-stage pipe diaphragm pump of the present invention, and the embodiment of the single-stage pipe diaphragm pump will be described in detail below with reference to the accompanying drawings.

Referring to FIGS. 1 through 4, the duct diaphragm pump 100 of the present invention includes a pump casing 10, an input pipe joint 21, a liquid output pipe joint 22, an elastic hose 30, a check valve 40, a skew shaft 50, and a balance wheel 60.

As shown in FIGS. 5A to 5F, the pump casing 10 is joined by the first casing 11 and the second casing 12, and is fastened by screws. The structure of the first housing 11 is as shown in FIG. 5A to FIG. 5C. The first housing 11 is a rectangular block body. A bearing hole 111 is disposed in the center of one end of the first housing 11, and the bearing hole 111 is mounted therein. The first bearing 71 supporting the oblique axis 50. A cylindrical half cavity 112 is disposed on the first housing 11 inside the bearing hole 111, and an arcuate groove body 113 is disposed outside the cylindrical half cavity 112. The second housing 12 is configured as shown in FIG. 5D to FIG. 5F. The second housing 12 has a bearing hole 121 at the center of one end thereof. The bearing hole 121 is provided with a second bearing 72 for supporting the skew shaft 50. The second housing 12 is disposed inside the bearing hole 121 and is provided with a cylindrical half cavity 122. The outer side of the cylindrical half cavity 122 is provided with an arc groove body 123. The

cylindrical half cavities

112, 122 have the same axes as the bearing holes 111, 121 of the first and second housings. The

arcuate troughs

113, 123 are formed by

arcuate trough bodies

1131, 1231 and

transitional joints

1132, 1232 at the ends of the trough body, wherein the

transition joints

1132, 1232 extend to the first The outer surfaces of the housing 11 and the second housing 12 are coaxial with the bearing holes 111, 121 of the first and second housings. As shown in FIG. 2, the

cylindrical half chambers

112, 122 of the first housing 11 and the second housing 12 are combined to form a cylindrical inner chamber 10A for mounting the oblique axis 50 and the balance 60. The

arcuate grooves

113, 123 of the first casing 11 and the second casing 12 are joined to form the duct receiving chamber 10B for mounting the elastic hose 30.

As shown in FIG. 2 to FIG. 4, a liquid input pipe joint 21 and a liquid output pipe joint 22 are connected to both sides of the pump casing 10 for connecting the liquid input pipe and the liquid output pipe. The liquid input pipe joint 21 and the liquid output pipe joint 22 are in communication with the four elastic hoses 30. The liquid input pipe joint 21 and the liquid output pipe joint 22 have the same structure. As shown in FIGS. 8A and 8B, the liquid input pipe joint 21 and the liquid output pipe joint 22 are strips corresponding to the side shape of the pump casing 10. The main body is provided with

main passages

211 and 221, and the

main passages

211 and 221 extend from one end of the liquid input pipe joint 21 and the liquid output pipe joint 22 to the proximal end of the other end to form an open end and a closed end. Liquid channel. The open ends of the

main passages

211, 221 extend outwardly out of the overhang joints 2111, 2211 for connecting the outer tubes. Four elastic hose interfaces 212, 222 are disposed at the other ends of the liquid input pipe joint 21 and the liquid output pipe joint 22, and four elastic hose interfaces 212, 222 are connected to the

main passages

211, 221, The liquid in the

main passages

211, 221 enters the four elastic hoses 30 via the four

elastic hose ports

212, 222, and then flows out from the other ends of the four elastic hoses 30.

As shown in FIG. 2 to FIG. 4, an elastic hose 30 is disposed in each of the four duct accommodating cavities 10B, and two ends of each elastic hose 30 are respectively connected to the liquid input pipe joint 21 and the liquid output pipe. The joints 22 are connected. The hose 30 is made of a high strength elastic material such as rubber, plastic or silicone material. In this embodiment, in order to prevent the elastic hose 30 from being fatigue-damaged due to repeated deformation under the action of the balance wheel 60, a high-strength fiber rope is wound around the outer portion of the elastic hose 30, so that the outer surface of the elastic hose 30 is Covered by high-strength fiber ropes, it not only maintains the elasticity of the elastic hose, but also increases the strength and wear resistance of the elastic hose. In order to increase the lubricity of the balance wheel 60 when the elastic hose 30 is pressed, grease is also immersed in the high-strength fiber rope to lubricate the outer surface of the elastic hose 30. Therefore, the pressure loss and wear of the balance tube 60 to the elastic hose 30 can be minimized. The four elastic hoses 30 are arranged in different phases, wherein the phase difference between the two elastic hoses 30 in the same plane is 180 degrees, and the phase difference between the two elastic hoses 30 between the different planes is At 90 degrees, the balance 60 is pressed in sequence with each of the elastic hoses 30 to form a continuous liquid inflow and outflow. As shown in FIG. 3 and FIG. 4, each of the elastic hoses 30 is provided with a portion corresponding to the

turning connection portions

1132 and 1232 of the arcuate groove body of the first casing 11 and the second casing 12, respectively. The check valve 40, as shown in FIG. 13E and FIG. 17, in the present embodiment, the check valve 40 includes a valve body 41, a valve cover 42, and a diaphragm 43. The valve body 41 is a circular columnar body, and has a concave curved surface on the upper side, a liquid inlet hole 411 on the lower side thereof, and a plurality of small through holes 412 between the curved surface and the liquid inlet hole 411. The liquid enters the liquid outlet hole 421 on the other side of the valve body 41 through the plurality of small through holes 412. The outer side of the valve body 41 is a liquid The output pipe joint 22 has a matching arc shape with a matching inlet shape. The upper end of the valve cover 42 is provided with a liquid outlet hole 421. The lower end of the valve cover 42 is provided with a sleeve-shaped cavity, and the liquid enters the liquid output pipe joint 22 through the liquid outlet hole 421. The sleeve of the valve cover 42 is snapped at a concave step at the end of the valve body 41 to connect the two. The diaphragm 43 is composed of a circular diaphragm body 431 and a connecting post 432. The connecting post 432 is embedded in the connecting hole in the center of the valve cover 42, and the diaphragm body 431 is attached to the arc surface of the valve body 41. When the liquid enters, the liquid lifts the diaphragm body 431, and the sleeve cavity of the valve cover 42 flows out through the liquid outlet hole 421 of the valve cover 42, and if the liquid flows in the opposite direction, the diaphragm body 431 is pressed. The small through hole 412 of the valve body is blocked, and the liquid is discharged and sucked in one direction.

As shown in FIG. 2 and FIG. 6, a tilting shaft 50 is disposed in the inner cavity 10A of the pump casing, and the two ends of the oblique shaft 50 are respectively supported by the first bearing 71 and the second bearing 72, and the skew is biased. One end of the shaft 50 is coupled to a motor (not shown). The oblique axis 50 is integrally formed by two cylindrical

coaxial bodies

51 and 52 at both ends and an inclined cylinder 53 inclined between the two

cylindrical bodies

51 and 52 between the two

cylindrical bodies

51 and 52. The axis of the inclined cylinder 53 intersects the axis of the two

cylinders

51, 52 in the middle of the cylindrical inner cavity 10A. A first shoulder 54 and a second shoulder 55 are disposed at an upper end of the inclined cylinder 53. The lower end of the inclined cylinder 53 is provided with a concave step 56. The first shoulder 54 is used for the first bearing 71. The axial limit is used, the second shoulder 55 is used for axially limiting the third bearing 73, and the step 56 is used for axially limiting the second bearing 72.

As shown in FIG. 2, a balance 60 is connected to the outside of the oblique shaft 50 via a third bearing 73. The structure is as shown in FIG. 7. The balance 60 includes a disk 61, a flange 62 and a cover 63. . The disk-shaped body 61 is a cylindrical disk-shaped body having a bearing hole 611 therein. The bearing hole 611 is provided with a third bearing 73, and the third bearing 73 is screwed by the cover plate 63. The flange 62 is formed by an axisymmetric arc convex toward the outside, and is disposed outside the balance body 61 and extends outwardly between the two elastic hoses 30 in the duct receiving cavity 10B. As a pressing member of the elastic hose 30, the elastic hose 30 is squeezed or released by a cone swing so that the liquid is discharged and sucked in one direction through the one-way valve. The balance 60 is supported by a third bearing 73 housed in a bearing hole 611.

Referring to Figures 2 to 4, the pipeline diaphragm pump 100 of the present invention is driven by a motor during operation. When the off-axis 50 rotates, the skew shaft 50 swings the balance 60 through the third bearing 73. The balance 60 presses or releases the elastic hose 30 through the flange 62 during the swinging process, so that the liquid passes through. The one-way valve 40 is discharged and sucked in one direction. During this process, due to the action of the one-way valve 40, the liquid in the elastic hose 30 can only flow in one direction without the problem of backflow, so the flange 62 of the balance wheel is The pressing or loosening of the elastic hose 30 during the swinging process does not require the elastic hose 30 to be crushed, and since the elastic hose 30 is covered with a fiber rope and impregnated with grease, the elastic hose 30 can be greatly extended. Service life. And because the phases of the four elastic hoses 30 are different, the balance wheel 60 is sequentially pressed against the respective elastic hoses 30, thereby forming a continuous liquid inflow and outflow, and the liquid in the four elastic hoses 30 having different phases passes through the liquid. The output fitting 22 merges the output and is merged through the liquid input fitting 21 for input.

Example 2

On the basis of Embodiment 1, the pipeline diaphragm pump of the present invention can also be made into a multi-stage pipeline diaphragm pump, and the basic structure thereof is the same as that of Embodiment 1, except that it can be designed and assembled according to the flow conveying requirement of the pipeline diaphragm pump. The stage structure, Figures 9 to 18 show a multi-stage pipe diaphragm embodiment.

As shown in FIGS. 13A to 13C, the multistage pipeline diaphragm pump 100 of the present invention includes a pump casing 10, an input pipe joint 21, a liquid output pipe joint 22, an elastic hose 30, a check valve 40, a skew axis 50, and a pendulum. Wheel 60.

The structure of the first casing 11 of the pump casing 10 is shown in Figs. 14A to 14C, the structure of the second casing 12 is shown in Figs. 14D to 14F, and the structure of the intermediate casing 13 is shown in Figs. 14G to 14I. As shown in FIG. 14A to FIG. 14I, the pump casing 10 is formed by the first casing 11, the second casing 12 and the intermediate casing 13 being joined to each other, wherein the intermediate casing 13 is connected to the first casing 11 Between the second housing 12 and the addition of the intermediate housing 13 increases the number of stages of the diaphragm pump. The first housing 11, the second housing 12, and the intermediate housing 13 are block-shaped bodies having a circular shape in the middle and rectangular ends. The first housing 11 and the second housing 12 are respectively disposed at the center of one end. The bearing holes 111 and 121 are respectively provided with a first bearing 71 and a second bearing 72 in the bearing holes 111 and 121. The first housing 11, the second housing 12 and the intermediate housing 13 are respectively provided with

cylindrical cavities

112, 122, 131, which are located in the bearing hole 111, Inside the 121, the

cylindrical cavities

112, 122, 131 are opposed to each other to form a cylindrical inner cavity 10A. The outer sides of the

cylindrical cavities

112, 122, 131 are provided with eight

arcuate troughs

113, 123, 132, the

arcuate troughs

113, 132 and the second casing 12 and the arcuate trough 123 of the intermediate casing 13. And 132 pairs form the eight pipe receiving chambers 10B. The

cylindrical cavities

112, 122, 131 are coaxial with the bearing holes 111, 121 of the first housing, the second housing, and the intermediate housing 13. The

arcuate troughs

113, 123, and 132 are formed by arc-shaped

trough bodies

1131, 1231, and 1321 and turning

connection portions

1132, 1232, and 1322 located at both ends of the trough body, wherein the inflection joints 1132, 1232 And extending to the outer surfaces of the first casing 11, the second casing 12 and the intermediate casing 13, the

tank body

1131, 1231, 1321 and the bearing holes 111 of the first casing and the second casing , 121 and the intermediate casing 13 are coaxial.

As shown in FIGS. 18A and 18B, the liquid input pipe joint 21 and the liquid output pipe joint 22 are strip-like bodies corresponding to the end face shape of the pump casing 10, and are provided with

main passages

211, 221 and elasticity. The

hose ports

212, 222 have an overhanging joint and one end is closed. The elastic hose interfaces 212 and 222 are disposed at two ends of the

main passages

211 and 221, and communicate with the

main passages

211 and 221, and the elastic hose interfaces 212 and 222 are provided with 4× according to the number of the diaphragm pump stages of the pipeline. N, where N is the number of balances 60. In this embodiment, the pipe diaphragm pump is of the second stage. Therefore, as shown in Fig. 13B, eight

elastic hose ports

212, 222 are provided.

As shown in FIG. 13B and FIG. 13C, an elastic hose 30 is disposed in each of the eight duct accommodating chambers 10B, and two ends of each elastic hose 30 are respectively connected to the liquid input pipe joint 21 and the liquid output pipe. The joints 22 are connected. The hose 30 is made of a high strength elastic material such as rubber, plastic or silicone material. In this embodiment, in order to prevent the elastic hose 30 from being fatigue-damaged due to repeated deformation under the action of the balance wheel 60, a high-strength fiber rope is wound around the outer portion of the elastic hose 30, so that the outer surface of the elastic hose 30 is Covered by high-strength fiber ropes, it not only maintains the elasticity of the elastic hose, but also increases the strength and wear resistance of the elastic hose. In order to increase the lubricity of the balance wheel 60 when the elastic hose 30 is pressed, grease is also immersed in the high-strength fiber rope to lubricate the outer surface of the elastic hose 30. Therefore, the pressure loss and wear of the balance tube 60 to the elastic hose 30 can be minimized. The 8 The phase difference between the elastic hoses is 90 degrees, so that the balance wheel 60 is sequentially pressed against the respective elastic hoses 30, thereby forming a continuous liquid inflow and outflow.

As shown in FIG. 13C, a check valve is provided in each elastic hose 30 at a position corresponding to the

turning connection portions

1132 and 1232 of the arcuate groove of the first housing 11 and the second housing 12, respectively. 40, as shown in FIG. 13C and FIG. 17, in the present embodiment, the check valve 40 includes a valve body 41, a valve cover 42, and a diaphragm 43. The valve body 41 is a circular columnar body, and has a concave curved surface on the upper side, a liquid inlet hole 411 on the lower side thereof, and a plurality of small through holes 412 between the curved surface and the liquid inlet hole 411. The liquid enters the liquid outlet hole 421 on the other side of the valve body 41 through the plurality of small through holes 412. The outer side of the valve body 41 is a curved surface that matches the shape of the liquid inlet of the liquid delivery fitting 22. The upper end of the valve cover 42 is provided with a liquid outlet hole 421. The lower end of the valve cover 42 is provided with a sleeve-shaped cavity, and the liquid enters the liquid output pipe joint 22 through the liquid outlet hole 421. The sleeve of the valve cover 42 is snapped at a concave step at the end of the valve body 41 to connect the two. The diaphragm 43 is composed of a circular diaphragm body 431 and a connecting post 432. The connecting post 432 is embedded in the connecting hole in the center of the valve cover 42, and the diaphragm body 431 is attached to the arc surface of the valve body 41. When the liquid enters, the liquid lifts the diaphragm body 431, and the sleeve cavity of the valve cover 42 flows out through the liquid outlet hole 421 of the valve cover 42, and if the liquid flows in the opposite direction, the diaphragm body 431 is pressed. The small through hole 412 of the valve body is blocked, and the liquid is discharged and sucked in one direction.

The multi-section oblique axis 50 may be two or more segments according to the number of the pipe diaphragm pump stages, as shown in FIG. 13B, FIG. 15A, FIG. 15B. In the embodiment, the multi-section oblique axis 50 includes the first oblique An off-axis 51 and a second skew-off shaft 52, wherein the first skew-off shaft 51 includes an inclined cylinder 511 and a reduced-diameter shaft 512 having a diameter smaller than the inclined cylinder 511, and is disposed on the reduced-diameter shaft 512 There is a key slot 5121. The upper end of the inclined cylinder 511 is provided with a first shoulder 5111 and a second shoulder 5112 for respectively limiting the first bearing 71 and the third bearing 73. The first skew axis 51 is housed within the

cylindrical cavities

112, 122 of the pump casing. The second oblique axis 52 includes a cylindrical body 521 at one end thereof and an inclined cylinder 522 at the other end thereof, and a key groove 5221 is provided on the inner hole wall thereof, and the second oblique axis 52 is connected to the first by a key. On the reduced diameter shaft 512 of the oblique off-axis 51, the first balance wheel 61 and the second balance wheel 62 are respectively mounted on the inclined cylinder 511 of the first oblique axis 51 and the inclined cylinder 522 of the second oblique axis 52. . One end of the first skew axis 51 of the multi-segment oblique axis 50 is supported by the first bearing 71, and one end of the second skew shaft 52 is supported by the second bearing 72.

As shown in FIG. 13B and FIG. 16, the balance 60 has the same structure as the first embodiment, and includes a disk 61, a flange 62 and a cover 63. The disk 61 is provided with a bearing hole 611. In the cylindrical disk-like body, a third bearing 73 is fixed in the bearing hole 611 by a cover plate 63, and the flange 62 extends outward from the center of the disk-shaped body 61. The first balance wheel 61 and the second balance wheel 62 are respectively supported by a third bearing 73 housed in the bearing holes 6111, 6211. The phase difference between the two balance wheels 60 is 180 ⁰ /N, where N is the number of balance wheels. In this embodiment, the number of stages of the pipeline diaphragm pump is two, and the phase difference between the balance wheels 60 for

As shown in FIG. 13B and FIG. 13C, when the motor drives the two oblique axes 50 to rotate, the balance 60 is caused to swing in a cone, and the elastic hose 30 is pressed or loosened by the flange 62 during the swinging process. The liquid is discharged and sucked in one direction through the one-way valve, and the liquid in the eight elastic hoses 30 is converged and outputted through the liquid output pipe joint 22, and the liquid in the plurality of elastic hoses 30 is merged and input through the liquid input pipe joint 21.

Although the present invention has been disclosed by the above embodiments, the scope of the present invention is not limited thereto, and variations, substitutions, and the like of the above components will fall within the scope of the present invention. Within the scope of the claims.

Claims

A pipeline diaphragm pump, characterized in that the pipeline diaphragm pump (100) is provided with a pump casing (10) having a cylindrical inner cavity (10A) in the cylindrical inner cavity (10A) The side wall is provided with four concave curved duct accommodating cavities (10B), and one elastic hose (30) is arranged in each of the four duct accommodating cavities (10B), two of the same plane The phase difference between the elastic hoses (30) is 180 degrees, the phase difference between the two elastic hoses (30) between the different planes is 90 degrees, and the liquid input pipe joint is connected outside the pump casing (10). (21) and a liquid output pipe joint (22), two ends of each elastic hose (30) are respectively sealedly connected with the liquid input pipe joint (21) and the liquid output pipe joint (22), and the liquid input pipe joint (21) And the liquid output pipe joint (22) communicates with the four elastic hoses (30), and each of the elastic hoses (30) is sealedly connected with a one-way valve (40) at both ends thereof, in the pump casing The inner cavity (10A) is provided with a skew axis (50) connected to the motor, and the outer side of the oblique axis (50) is connected to the balance wheel (60) through the third bearing (73). a balance flange (62) on the outer side of the balance body (61) of the balance wheel (60) The flange (62) extends between the four elastic hoses (30) in the duct accommodating chamber (10B), and when the motor drives the tilting shaft (50) to rotate, the balance wheel (60) is oscillated The elastic hose (30) is squeezed or loosened by the flange (62) during the swinging process, so that the liquid is discharged and sucked in one direction through the one-way valve, and the four flexible hoses (30) of different phases are The liquid is discharged through the liquid output pipe joint (22), and the liquid in the four flexible hoses (30) of different phases is connected to the liquid through the liquid inlet pipe joint (21).
A multi-stage pipeline diaphragm pump, characterized in that the pipeline diaphragm pump (100) is provided with a pump casing (10) having a cylindrical inner cavity (10A) therein, in the cylindrical inner cavity ( 10A) is provided with a plurality of sets of four concave arc-shaped duct accommodating cavities (10B), and each of the plurality of duct accommodating cavities (10B) is provided with an elastic hose ( 30) a liquid input pipe joint (21) and a liquid output pipe joint (22) are connected outside the pump casing (10), and two ends of each elastic hose (30) are respectively connected with the liquid input pipe joint (21) and The liquid output pipe joint (22) is connected, the liquid input pipe joint (21) and the liquid output pipe joint (22) are sealingly connected with the plurality of elastic hoses (30), and two of the elastic hoses (30) A check valve (40) is connected to each end of the seal, and a plurality of oblique axes (50) are arranged in the inner cavity (10A) of the pump casing, and the multi-section oblique axes (50) are connected to each other and to the motor. Connecting, the outer portion of the multi-section oblique axis (50) is connected to a balance wheel (60) through a third bearing (73), and the phase difference between the plurality of balance wheels (60) is
Where N is the number of balance wheels, and the balance body (61) of the balance wheel (60) is provided with a flange (62) outside, and the flange (62) extends to the set of pipe receiving chambers (10B) Between the four elastic hoses (30), when the motor drives the oblique axis (50) to rotate, the balance wheel (60) is oscillated in a cone, and is squeezed or loosened by the flange (62) during the swinging process. The elastic hose (30) is such that the liquid is discharged and sucked in one direction through the one-way valve, and the liquid in the plurality of elastic hoses (30) is combined and outputted through the liquid output pipe joint (22), and the plurality of elastic hoses (30) The liquid inside is confluently fed through the liquid inlet fitting (21).
The pipeline diaphragm pump according to claim 1, wherein the pump casing (10) is formed by abutting a first casing (11) and a second casing (12), the first casing ( 11) and the second housing (12) is a rectangular block body, and the first end of the first housing (11) and the second housing (12) are respectively provided with bearing holes (111, 121), and the bearing holes (111) , 121) respectively equipped with a first bearing (71) and a second bearing (72), wherein the first housing (11) and the second housing (12) are located inside the bearing hole (111, 121) with a cylinder a cavity (112, 122) having an outer side of the cylindrical cavity (112, 122) with an arcuate groove (113, 123), a cylindrical shape of the first casing (11) and the second casing (12) The half cavities (112, 122) are merged to form a cylindrical inner cavity (10A), and the arcuate troughs (113, 123) of the first casing (11) and the second casing (12) are combined to form the pipe. The chamber (10B) is accommodated.
The multi-stage pipeline diaphragm pump according to claim 2, wherein said pump casing (10) is composed of a first casing (11), a second casing (12) and a first casing (11) and At least one intermediate casing (13) between the second casings (12) is joined together, and the first casing (11), the second casing (12) and the intermediate casing (13) are block-shaped. Body, first housing (11) and second housing (12) One end of each end is provided with bearing holes (111, 121), and the bearing holes (111, 121) are respectively provided with a first bearing (71) and a second bearing (72), a first housing (11), a second The housing (12) and the intermediate housing (13) are located inside the bearing holes (111, 121) and are provided with cylindrical cavities (112, 122, 131) which are opposite to each other, and the cylindrical cavities (112, 122) , 131) a plurality of arcuate troughs (113, 123, 132) on the outer side, a cylindrical cavity of the first casing (11), the second casing (12), and the intermediate casing (13) (112, 122, 131) forming a cylindrical inner cavity (10A), an arcuate groove body (113, 132) of the first casing (11) and the intermediate casing (13), and a second casing (12) and an intermediate casing The arcuate grooves (123, 132) of the body (13) are joined to form the pipe receiving cavity (10B).
The pipeline diaphragm pump according to claim 3 or 4, wherein the cylindrical cavity (112, 122, 131) and the bearing holes (111, 121) of the first casing and the second casing are intermediate The housing (13) is coaxial, and the arcuate groove body (113, 123, 132) is formed by an arc-shaped groove body (1131, 1231, 1321) and a turning connection portion (1132, 1232) at both ends of the body of the groove body. , 1322), wherein the turning connection portion (1132, 1232, 1322) extends to an outer surface of the first casing (11), the second casing (12), and the intermediate casing (13), The tank body (1131, 1231, 1321) is coaxial with the bearing holes (111, 121) and the intermediate casing (13) of the first casing and the second casing.
The pipeline diaphragm pump according to claim 1, wherein said liquid input pipe joint (21) and liquid output pipe joint (22) are in a strip shape corresponding to a side shape of said pump casing (10) The body is provided with a main passage (211, 221) closed at one end with an overhanging joint and four elastic hose interfaces (212, 222) on one side thereof and communicating with the main passage (211, 221).
The pipeline diaphragm pump according to claim 2, wherein said liquid input pipe joint (21) and liquid output pipe joint (22) are in a strip shape corresponding to a side shape of said pump casing (10) The body is provided with a main passage (211, 221) closed at one end with an overhanging joint and 4 x N elastic hose interfaces (212, 222) at both ends thereof and communicating with the main passage (211, 221) ), where N is the number of balances (60).
A pipeline diaphragm pump according to claim 1, wherein said oblique axis (50) The cylinder (51, 52) comprising two coaxial lines at both ends and the inclined cylinder (53) between the two cylinders (51, 52), the upper end of the inclined cylinder (53) is first a shoulder (54), a second shoulder (55), a lower end of the inclined cylinder (53) is provided with a concave step (56), the axis of the inclined cylinder (53) and the two cylinders (51, 52) The axes intersect in the middle of the cylindrical inner cavity (10A).
The pipeline diaphragm pump according to claim 2, wherein said multi-section skew axis (50) comprises at least a first skew axis (51) and a second skew axis (52), wherein said A oblique axis (51) includes an inclined cylinder (511) and a reduced diameter shaft (512) of one body, and a keyway (5121) is disposed on the reduced diameter shaft (512), and the upper end of the inclined cylinder (511) is provided a first shoulder (5111) and a second shoulder (5112), the first skew axis (51) being mounted in the cylindrical cavity (112, 122) of the pump casing; the second skew axis (52) a cylinder (521) at one end thereof and a slanted cylinder (522) at the other end thereof, a keyway is provided in the inner wall of the hole, and the second oblique axis (52) is connected to the first skew by a key A first balance wheel (61) and a second balance wheel (62) are respectively mounted on the first skew axis (51) and the second skew axis (52) on the reduced diameter shaft (512) of the shaft (51). .
The pipeline diaphragm pump according to claim 1 or 2, wherein the balance (60) comprises a disk (61), a flange (62) and a cover (63), wherein the disk is The body (61) is a cylindrical disk-shaped body provided with a bearing hole (611), and a third bearing (73) is fixed in the bearing hole (611) by a cover plate (63), the flange (62) being disk-shaped The body (61) extends outwardly from the center.
The pipeline diaphragm pump according to claim 8, wherein both ends of said oblique axis (50) are supported by said first bearing (71) and said second bearing (72), respectively, said balance (60) ???supported by a third bearing (73) mounted in a bearing bore (611), said third bearing (73) being constrained by a second shoulder (55) of the skewed axle, said first bearing (71) And the second bearing (72) is respectively limited by the first shoulder (54) and the step (56).
The pipeline diaphragm pump according to claim 9, wherein one end of the first skew axis (51) of the multi-section skew axis (50) is supported by a first bearing (71), and the second skew axis One end of (52) is supported by a second bearing (72); the first balance wheel (61) and the second balance wheel (62) are divided It is not supported by a third bearing (73) mounted on the first oblique axis (51) and the second oblique axis (52).
The pipeline diaphragm pump according to claim 1 or 2, characterized in that the outer portion of the elastic hose (30) is wound with a high-strength fiber rope, and the high-strength fiber rope is impregnated with grease.
A pipeline diaphragm pump according to claim 1 or 2, wherein said one-way valve (40) comprises a valve body (41), a valve cover (42) and a diaphragm (43), wherein the valve body (41) One side is provided with a concave curved surface, the other side is provided with a liquid inlet hole (411), and a small through hole (412) is filled between the curved surface and the liquid inlet hole (411), and the valve body (41) The outer side surface is curved, and one end of the valve cover (42) is provided with a liquid outlet hole (421), and the valve cover (42) is coupled to the valve body (41), and the diaphragm (43) is circular. The diaphragm body (431) and the connecting post (432) are formed, and the connecting post (432) is connected to the valve cover (42), and the diaphragm body (431) is mounted on the arc surface of the valve body (41).