Triple conveying pump capable of conveniently adjusting proportion to convey materials

Abstract

The utility model provides a triplex delivery pump convenient for proportionally adjusting and delivering materials, which comprises a frame body, a linear driving mechanism, a first piston pump, a second piston pump and a connecting rod assembly, the first piston pump is arranged on the frame body, and the linear driving mechanism is also arranged on the frame body and is connected with the telescopic end of the first piston pump; the connecting rod assembly is mounted on the frame body; the second piston pump is slidably arranged on the frame body in the width direction of the frame body. The telescopic end of the second piston pump is connected with the connecting rod assembly. An adjusting mechanism is further included, the adjusting mechanism comprises a first sliding block, a first lead screw and a driving assembly, the first sliding block is fixedly connected to the second piston pump, the first lead screw is rotationally connected to the frame body in the width direction of the frame body, the first lead screw penetrates through the first sliding block, and the first lead screw is in threaded connection with the first sliding block; the driving assembly is connected to one end of the first lead screw. The driving assembly drives the first lead screw to rotate to drive the second piston pump to move relative to the frame body, fastening screws do not need to be manually disassembled, and adjustment is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of emulsified material pumping equipment, in particular to a triple delivery pump which is convenient for proportioning and adjusting the delivery of materials. Background Art

[0002] Emulsion explosives are highly safe and require the use of detonators to detonate them when used. Even if they are ignited by open flames, they will not explode as long as they are not in a narrow, confined space. Therefore, they are widely used.

[0003] In the production process of existing emulsion explosives, multiple raw materials need to be transported to the mixing and emulsification equipment through pumping equipment for sufficient mixing and emulsification, and the delivery ratio of the raw materials needs to be strictly controlled when the raw materials are transported. Among the existing conveying devices, the utility model patent CN220522739U discloses a triple pumping device for mixing emulsion explosives, which can well control the ratio of each material during pumping, but when the device is adjusted in proportion, the adjustment position cannot be determined, and during the adjustment process, a tape measure is needed to measure the relative position of the auxiliary material delivery pump relative to the main material delivery pump, and finally the position of the auxiliary material delivery pump is obtained by calculation, which is very inconvenient to adjust and takes a lot of time.

[0004] In summary, there is an urgent need for a triple delivery pump that is convenient for proportionally adjusting the delivery of materials to solve or at least partially solve the problems existing in the prior art. Utility Model Content

[0005] The utility model aims to provide a triple delivery pump that is convenient for proportionally adjusting the delivery of materials, aiming to solve the problems of inconvenient adjustment, time-consuming and labor-consuming of the existing triple pumping device. The specific technical solution is as follows:

[0006] A triple conveying pump that is convenient for proportionally adjusting the conveying of materials, comprises a frame, a linear drive mechanism, a first piston pump, a second piston pump and a connecting rod assembly, wherein the first piston pump is mounted on the frame, the linear drive mechanism is also mounted on the frame, and the linear drive mechanism is arranged opposite to the first piston pump, and the driving end of the linear drive mechanism is connected to the telescopic end of the first piston pump; the first end of the connecting rod assembly is hinged to the driving end of the linear drive mechanism, and the second end of the connecting rod assembly is hinged to the frame; the second piston pump is arranged on the frame and slidably arranged along the width direction of the frame, and the telescopic end of the second piston pump is connected to the connecting rod assembly; it also comprises an adjusting mechanism, the adjusting mechanism comprises a first slider, a first screw rod and a driving assembly, the first slider is fixedly connected to the second piston pump, the first screw rod is arranged along the width direction of the frame, and both ends of the first screw rod are rotatably connected to the frame, the first screw rod passes through the first slider, and the first screw rod is threadedly connected to the first slider; the driving assembly is connected to one end of the first screw rod;

[0007] The surface of the frame body opposite to the first sliding block is provided with scale lines, a plurality of scale lines are provided, and the plurality of scale lines are arranged at intervals along the width direction of the frame body.

[0008] Furthermore, the adjusting mechanism also includes a second slider, a second screw rod, a driving sprocket, a driven sprocket and a chain, the second slider is fixedly connected to a side of the second piston pump away from the first slider; the second screw rod is rotatably connected to the frame, and the second screw rod is arranged parallel to the first screw rod, the second screw rod passes through the second slider, and the second screw rod is threadedly connected to the second slider; the driving sprocket is coaxially fixedly connected to one end of the first screw rod, the driven sprocket is coaxially fixedly connected to one end of the second screw rod, and the chain is simultaneously wound around the driving sprocket and the driven sprocket.

[0009] Furthermore, the driving assembly includes a handwheel, which is coaxially fixedly connected to the first screw rod.

[0010] Furthermore, the drive assembly also includes a drive motor, a driving gear, a driven gear and a cover shell, the driving gear is coaxially connected to the output shaft of the drive motor, the driven gear is coaxially rotatably connected to the first screw, the driving gear is meshed with the driven gear, the cover shell is fixedly connected to the frame, and the cover shell wraps the driving gear and the driven gear.

[0011] Furthermore, the connecting rod assembly includes a first connecting rod and a second connecting rod, the first end of the first connecting rod is hinged to the driving end of the linear drive mechanism, the second end of the first connecting rod is hinged to one end of the second connecting rod, and the end of the second connecting rod away from the first connecting rod is hinged to the frame; the telescopic end of the second piston pump is connected to the first connecting rod.

[0012] Furthermore, the first piston pump includes a first cylinder, a first piston and a first piston rod. The first cylinder is installed on the frame, and the first piston is coaxially slidably connected in the first cylinder; the first end of the first piston rod extends into the first cylinder, and the first end of the first piston rod is connected to the first piston, the second end of the first piston rod extends out of the first cylinder and is connected to the telescopic driving end of the linear driving mechanism, and the outer wall of the first piston rod is slidably and sealingly connected to the end of the first cylinder; the first piston separates a first rod cavity and a first rodless cavity in the first cylinder; a first feed port and a first discharge port are provided on the first cylinder, the first feed port is connected to the first rodless cavity, and the first discharge port is connected to the first rod cavity; a first one-way valve for controlling the flow of material from the first rodless cavity to the first rod cavity is provided on the first piston; a second one-way valve is provided on the first cylinder, and the second one-way valve is arranged at the first feed port.

[0013] Furthermore, the second piston pump includes a second cylinder, a second piston, a second piston rod and a third slider. The second cylinder is slidably arranged on the frame, and the second piston is coaxially slidably connected in the second cylinder; the first end of the second piston rod extends into the second cylinder, and the first end of the second piston rod is connected to the second piston, the second end of the second piston rod extends out of the second cylinder and is hinged to the third slider, the third slider is slidably connected to the first connecting rod, and the outer wall of the second piston rod is slidably and sealingly connected to the end of the second cylinder; the second piston separates a second rod chamber and a second rodless chamber in the second cylinder; a second feed port and a second discharge port are provided on the second cylinder, the second feed port is connected to the second rodless chamber, and the second discharge port is connected to the second rod chamber; a third one-way valve for controlling the flow of material from the second rodless chamber to the second rod chamber is provided on the second piston; a fourth one-way valve is provided on the second cylinder, and the fourth one-way valve is arranged at the second feed port.

[0014] Furthermore, two second piston pumps are arranged, and the two second piston pumps are arranged in parallel on both sides of the first piston pump.

[0015] Further, the flow area of ​​the first rodless cavity cross section is twice the flow area of ​​the first rod-containing cavity cross section.

[0016] The application of the technical solution of the utility model has the following beneficial effects:

[0017] The first screw is driven to rotate by the driving assembly, and the first screw is driven to drive the first slider and the second piston pump to reciprocate along the first screw. The movement distance of the first slider and the second piston pump can be accurately controlled by the rotation of the first screw, and the position of the first slider and the second piston pump can be fine-tuned by controlling the rotation of the first screw. Compared with the original adjustment method of loosening the bolts and manually moving the second piston pump, not only the adjustment efficiency is improved, but also the accuracy of position adjustment is improved, which facilitates the adjustment of the position of the second piston pump relative to the frame.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. Figure 1-Figure 6 , the utility model is further described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of a triple delivery pump that is convenient for proportionally adjusting the delivery of materials in the utility model;

[0021] Figure 2This is a schematic diagram of the internal structure of a triple delivery pump that is convenient for proportionally adjusting the delivery of materials in the utility model;

[0022] Figure 3 It is an enlarged view of the regulating mechanism in a triple delivery pump of the utility model which is convenient for proportionally regulating the delivery of materials;

[0023] Figure 4 This is a schematic diagram of the internal structure of a driving component in a triple delivery pump that is convenient for proportionally adjusting the delivery of materials in the utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the first piston pump in a triple delivery pump that is convenient for proportionally adjusting the delivery of materials in the utility model;

[0025] Figure 6 The utility model is a schematic diagram of the internal structure of the second piston pump in a triple delivery pump which is convenient for proportionally adjusting the delivery of materials.

[0026] Among them, 1, frame; 11, scale line; 2, linear drive mechanism; 3, first piston pump; 31, first cylinder; 311, first feed port; 312, first discharge port; 313, second one-way valve; 32, first piston; 321, first one-way valve; 33, first piston rod; 34, first rod chamber; 35, first rodless chamber; 4, second piston pump; 41, second cylinder; 411, second feed port; 412, second discharge port; 413, fourth one-way valve; 42, second piston; 421, The third one-way valve; 43, the second piston rod; 44, the third slider; 45, the second rod chamber; 46, the second rodless chamber; 5, the connecting rod assembly; 51, the first connecting rod; 52, the second connecting rod; 6, the adjusting mechanism; 61, the first slider; 62, the first screw rod; 63, the driving assembly; 631, the hand wheel; 632, the driving motor; 633, the driving gear; 634, the driven gear; 635, the cover; 64, the second slider; 65, the second screw rod; 66, the driving sprocket; 67, the driven sprocket; 68, the chain. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below, and preferred embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] Example:

[0030] See also Figure 1-Figure 6 The present embodiment provides a triple conveying pump for convenient proportional adjustment of conveying materials, comprising a frame 1, a linear drive mechanism 2, a first piston pump 3, a second piston pump 4 and a connecting rod assembly 5, wherein the first piston pump 3 is mounted on the frame 1, the linear drive mechanism 2 is also mounted on the frame 1, and the linear drive mechanism 2 is arranged opposite to the first piston pump 3, the driving end of the linear drive mechanism 2 is connected to the telescopic end of the first piston pump 3; the first end of the connecting rod assembly 5 is hinged to the driving end of the linear drive mechanism 2, and the second end of the connecting rod assembly 5 is hinged to the frame 1; the second piston pump 4 is arranged at The second piston pump 4 is on the frame 1 and is arranged to slide along the width direction of the frame 1. The telescopic end of the second piston pump 4 is connected to the connecting rod assembly 5; it also includes an adjusting mechanism 6, the adjusting mechanism 6 includes a first slider 61, a first screw rod 62 and a driving assembly 63, the first slider 61 is fixedly connected to the second piston pump 4, the first screw rod 62 is arranged along the width direction of the frame 1, and the two ends of the first screw rod 62 are rotatably connected to the frame 1, the first screw rod 62 is arranged through the first slider 61, and the first screw rod 62 is threadedly connected to the first slider 61; the driving assembly 63 is connected to one end of the first screw rod 62.

[0031] It can be known that the first piston pump 3 is driven by the linear drive mechanism 2 to pump the material, and the connecting rod assembly 5 is driven to swing and drive the second piston pump 4 to pump the material. When the linear drive mechanism 2 works a reciprocating stroke, the materials pumped out by the first piston pump 3 and the second piston pump 4 are in a ratio; under the premise that the relative positions of the first piston pump 3 and the second piston pump 4 do not change relative to the frame 1, as the linear drive mechanism 2 continues to work, the ratio of the materials pumped out by the first piston pump 3 and the second piston pump 4 remains unchanged. When it is necessary to adjust the ratio of the volume of the materials pumped out by the first piston pump 3 and the second piston pump 4, it is necessary to adjust the position of the second piston pump 4 on the frame 1. When the second piston pump 4 is closer to the first piston pump 3, the longer the stroke of the second piston pump 4 driven by the linear drive mechanism 2, the more materials are pumped out by the second piston pump 4 in one reciprocating movement, that is, the ratio of the materials pumped out by the second piston pump 4 to the materials pumped out by the first piston pump 3 is larger, and vice versa. By adjusting the position of the second piston pump 4 relative to the frame 1 through the adjustment mechanism 6, the ratio of the material pumped out by the second piston pump 4 to the material pumped out by the first piston pump 3 can be adjusted. Specifically, the first screw 62 is driven to rotate by the driving assembly 63, and the first slider 61 and the second piston pump 4 are driven to reciprocate along the first screw 62 by the first screw 62. The distance of movement of the first slider 61 and the second piston pump 4 can be accurately controlled by the rotation of the first screw 62, and the position of the first slider 61 and the second piston pump 4 can be fine-tuned by controlling the rotation of the first screw 62. Compared with the original adjustment method of loosening the bolt and manually moving the second piston pump 4, not only the adjustment efficiency is improved, but also the accuracy of position adjustment is improved, and the position of the second piston pump 4 relative to the frame 1 is convenient to adjust. It is worth noting that the first screw 62 is connected to the first slider 61 by a threaded connection, which has a self-locking function. Therefore, when the screw stops rotating, the position of the first slider 61 and the second piston pump 4 is locked. Of course, in order to make the locking more reliable, a locking bolt can also be set to lock the first slider 61 and the frame 1.

[0032] It should be noted that, in this embodiment, the linear drive mechanism 2 is a hydraulic cylinder, the outer shell of the hydraulic cylinder is fixedly connected to the frame 1, the driving end of the hydraulic cylinder is connected to the telescopic end of the first piston pump 3, and the telescopic movement of the hydraulic cylinder drives the first piston pump 3 to telescope to pump materials, and at the same time drives the connecting rod assembly 5 to swing, and drives the second piston pump 4 to telescope to pump materials. In some other embodiments of the present application, the linear drive mechanism 2 can also be a component or structure that can move back and forth along a straight line, such as a cylinder or an electric push rod.

[0033] It is worth noting that scale lines 11 are provided on the surface of the frame 1 opposite to the first slider 61, and a plurality of scale lines 11 are provided. The plurality of scale lines 11 are arranged at intervals along the width direction of the frame 1, that is, distributed along the axial direction of the first screw rod 62, and the scale lines 11 are arranged on the surface of the frame 1 facing the first slider 61.

[0034] Specifically, the position of the second piston pump 4 can be determined on site by comparing the relative positions of the scale line 11 and the first slider 61. In the process of adjusting the positions of the first slider 61 and the second piston pump 4, it is no longer necessary to use a tape measure for measurement, which further facilitates the adjustment of the position of the second piston pump 4.

[0035] Furthermore, the adjusting mechanism 6 also includes a second slider 64, a second screw rod 65, a driving sprocket 66, a driven sprocket 67 and a chain 68. The second slider 64 is fixedly connected to the side of the second piston pump 4 away from the first slider 61; the second screw rod 65 is rotatably connected to the frame 1, and the second screw rod 65 is arranged parallel to the first screw rod 62, the second screw rod 65 runs through the second slider 64, and the second screw rod 65 is threadedly connected to the second slider 64; the driving sprocket 66 is coaxially fixedly connected to one end of the first screw rod 62, the driven sprocket 67 is coaxially fixedly connected to one end of the second screw rod 65, and the chain 68 is simultaneously wound around the driving sprocket 66 and the driven sprocket 67, the diameter of the driving sprocket 66 is equal to the diameter of the driven sprocket 67, and the lead of the first screw rod 62 is equal to that of the second screw rod 65.

[0036] It can be known that, by setting the second slider 64, the sliding stability of the second piston pump 4 on the frame 1 is improved. When the driving assembly 63 drives the first screw rod 62 to rotate, the active sprocket 66 of the first screw rod 62 rotates, and the active sprocket 66 drives the driven sprocket 67 and the second screw rod 65 to rotate synchronously through the chain 68, thereby driving the second piston pump 4 to move together through the first slider 61 and the second slider 64, so that the movement of the second piston pump 4 is more stable and reliable.

[0037] Furthermore, the driving assembly 63 includes a hand wheel 631 , which is coaxially fixedly connected to the first screw rod 62 , and the first screw rod 62 can be driven to rotate by manually rotating the hand wheel 631 .

[0038] Furthermore, the driving assembly 63 also includes a driving motor 632, a driving gear 633, a driven gear 634 and a cover 635. The driving gear 633 is coaxially connected to the output shaft of the driving motor 632, and the driven gear 634 is coaxially rotatably connected to the first screw rod 62. The driving gear 633 is meshed with the driven gear 634. The cover 635 is fixedly connected to the frame 1, and the cover 635 wraps the driving gear 633 and the driven gear 634.

[0039] It can be known that the active gear 633 is driven by the motor to rotate, driving the driven gear 634 and the first screw rod 62 to rotate. Through the setting of the hand wheel 631 and the drive motor 632, manual adjustment and electric adjustment can be realized. When making preliminary adjustments, the drive motor 632 is used to drive the first screw rod 62 to rotate, so that the first slider 61 and the second piston pump 4 can move quickly. When fine-tuning is required, manual adjustment can be performed to ensure the adjustment accuracy. The coordinated adjustment of manual and electric makes the position adjustment of the second piston pump 4 more convenient and quick.

[0040] Furthermore, the connecting rod assembly 5 includes a first connecting rod 51 and a second connecting rod 52, the first end of the first connecting rod 51 is hinged to the driving end of the linear drive mechanism 2, the second end of the first connecting rod 51 is hinged to one end of the second connecting rod 52, and the end of the second connecting rod 52 away from the first connecting rod 51 is hinged to the frame 1; the telescopic end of the second piston pump 4 is connected to the first connecting rod 51.

[0041] It can be known that the linear drive mechanism 2 drives the first connecting rod 51 to swing, thereby driving the second connecting rod 52 to swing together. The function of the second connecting rod 52 is to prevent the first connecting rod 51 from getting stuck during the downward swinging process.

[0042] Furthermore, the first piston pump 3 includes a first cylinder 31, a first piston 32 and a first piston rod 33. The first cylinder 31 is mounted on the frame 1, and the first piston 32 is coaxially slidably connected in the first cylinder 31; the first end of the first piston rod 33 extends into the first cylinder 31, and the first end of the first piston rod 33 is connected to the first piston 32, the second end of the first piston rod 33 extends out of the first cylinder 31 and is connected to the telescopic driving end of the linear drive mechanism 2, and the outer wall of the first piston rod 33 is slidably and sealedly connected to the end of the first cylinder 31; A piston 32 separates a first rod chamber 34 and a first rodless chamber 35 in the first cylinder 31; a first feed port 311 and a first discharge port 312 are provided on the first cylinder 31, the first feed port 311 is connected to the first rodless chamber 35, and the first discharge port 312 is connected to the first rod chamber 34; a first check valve 321 for controlling the flow of materials from the first rodless chamber 35 to the first rod chamber 34 is provided on the first piston 32; a second check valve 313 is provided on the first cylinder 31, and the second check valve 313 is arranged at the first feed port 311. Specifically, the flow area of ​​the cross section of the first rodless chamber 35 is twice the flow area of ​​the cross section of the first rod chamber 34.

[0043] When the first piston 32 moves upward, the first one-way valve 321 is closed, and the material in the rodless chamber enters the first rod chamber 34 through the first one-way valve 321. Because the volume of the rod chamber increases less than the volume of the rodless chamber when the first piston 32 moves downward, part of the material in the rodless chamber enters the rod chamber and is then discharged through the first discharge port 312. When the first piston 32 moves upward, the first one-way valve 321 is closed, and the second one-way valve 313 is closed. The material in the rod chamber is discharged from the first discharge port 312, so that the first piston 32 can continuously discharge material when moving up and down, and at the same time, external material is sucked into the rodless chamber through the first feed port 311. When the flow area of ​​the cross section of the first rodless chamber 35 is twice the flow area of ​​the cross section of the first rod chamber 34, the volume of material discharged by the first piston 32 when it moves upward is equal to the volume of material discharged when the first piston 32 moves downward, thereby stabilizing the material flow rate discharged by the first piston 32 when it moves upward and downward.

[0044] Furthermore, the second piston pump 4 includes a second cylinder 41, a second piston 42, a second piston rod 43 and a third slider 44. The second cylinder 41 is slidably arranged on the frame 1, and the second piston 42 is coaxially slidably connected in the second cylinder 41; the first end of the second piston rod 43 extends into the second cylinder 41, and the first end of the second piston rod 43 is connected to the second piston 42, the second end of the second piston rod 43 extends out of the second cylinder 41 and is hinged to the third slider 44, the third slider 44 is slidably connected to the first connecting rod 51, and the outer wall of the second piston rod 43 is connected to the second cylinder 41. The ends are connected by sliding seals; the second piston 42 separates the second rod chamber 45 and the second rodless chamber 46 in the second cylinder 41; the second cylinder 41 is provided with a second feed port 411 and a second discharge port 412, the second feed port 411 is connected to the second rodless chamber 46, and the second discharge port 412 is connected to the second rod chamber 45; the second piston 42 is provided with a third check valve 421 for controlling the flow of materials from the second rodless chamber 46 to the second rod chamber 45; the second cylinder 41 is provided with a fourth check valve 413, and the fourth check valve 413 is arranged at the second feed port 411. Specifically, the flow area of ​​the cross section of the second rodless chamber 46 is twice the flow area of ​​the cross section of the second rod chamber 45.

[0045] It can be known that the difference between the second piston pump 4 and the first piston pump 3 is that the top of the second piston pump 4 is connected to the first connecting rod 51 through the third slider 44, and when the first connecting rod 51 swings, it drives the second piston rod 43 to move up and down to pump materials. The rest of the unmentioned parts are basically the same as the first piston pump 3, and will not be repeated here.

[0046] Furthermore, two second piston pumps 4 are arranged, and the two second piston pumps 4 are arranged in parallel on both sides of the first piston pump 3, and the two second piston pumps 4 are arranged in the height direction. It is worth noting that in some other embodiments, when applied to the pumping of other materials, the number of second piston pumps 4 can also be flexibly adjusted, and the number of second piston pumps 4 can be increased or decreased.

[0047] It is known that three kinds of raw materials are often needed in the production process of emulsion explosives, so the water phase material is transported by the first piston pump 3, and the oil phase material and the sensitizer are transported respectively by the two second piston pumps 4. It should be noted that the position of the first piston pump 3 remains unchanged, so the volume of the water phase material discharged by the linear drive mechanism 2 reciprocating once remains unchanged, and the positions of the two second piston pumps 4 can be adjusted by the adjustment mechanism 6. By moving the position of the second piston pump 4 to change the distance that the connecting rod assembly 5 drives the second piston rod 43 and the second piston 42 of the second piston pump 4 to move, the volume of the material pumped out by the second piston pump 4 can be changed, and the position of the two second piston pumps 4 on the frame 1 relative to the first piston pump 3 is adjusted to control the amount of water phase material, oil phase material and sensitizer pumped out within the required ratio range.

[0048] It should be noted that the ratio of materials pumped out by the first piston pump 3 and the second piston pump 4 can be adjusted by adjusting the position of the second piston pump 4 relative to the first piston pump 3. When the second piston pump 4 is closer to the first piston pump 3, the distance that the first connecting rod 51 drives the second piston rod 43 to move up and down is longer, and the amount of material pumped out in one reciprocating movement is greater, while the amount of material pumped out by the first piston pump 3 remains unchanged. Therefore, the closer the second piston pump 4 is, the greater the ratio of the material pumped out by the second piston pump 4 to the material pumped out by the first piston pump 3, and vice versa.

[0049] If the ratio of the pumped material still cannot be adjusted by adjusting the position of the second piston pump 4 relative to the first piston pump 3, by replacing the model of the first piston pump 3 or the second piston pump 4, if it is necessary to increase the ratio of the material pumped out by the first piston pump 3 to the material pumped out by the second piston pump 4, replace the first piston pump 3 with a smaller diameter or replace the second piston pump 4 with a larger diameter; if it is necessary to reduce the ratio, replace the first piston pump 3 with a larger diameter or replace the second piston pump 4 with a smaller diameter.

[0050] The working process and principle of the utility model are as follows:

[0051] The first piston pump 3 is driven to work by the linear drive mechanism 2, and at the same time, the first connecting rod 51 and the second connecting rod 52 are driven to swing. When the first connecting rod 51 swings, it drives the second piston pump 4 to work, so that the first piston pump 3 and the second piston pump 4 work at the same time and pump materials in proportion. When it is necessary to adjust the proportion of materials pumped by the first piston pump 3 and the second piston pump 4, it is only necessary to drive the first screw rod 62 to rotate through the drive component 63 to drive the first slider 61 and the second piston pump 4 to move to the corresponding proportional position, so as to change the distance that the first connecting rod 51 drives the second piston rod 43 and the second piston 42 of the second piston pump 4 to move up and down, thereby realizing the adjustment of the amount of material pumped out by the second piston pump 4. Because the volume of the material pumped out by the first piston pump 3 remains unchanged, the volume ratio of the material pumped out by the first piston pump 3 and the second piston pump 4 can be adjusted.

[0052] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A triple delivery pump that is convenient for proportionally adjusting the delivery of materials, characterized in that: The invention comprises a frame (1), a linear drive mechanism (2), a first piston pump (3), a second piston pump (4) and a connecting rod assembly (5), wherein the first piston pump (3) is mounted on the frame (1), the linear drive mechanism (2) is also mounted on the frame (1), and the linear drive mechanism (2) and the first piston pump (3) are arranged opposite to each other, and the driving end of the linear drive mechanism (2) is connected to the telescopic end of the first piston pump (3); The first end of the connecting rod assembly (5) is hinged to the driving end of the linear drive mechanism (2), and the second end of the connecting rod assembly (5) is hinged to the frame (1); The second piston pump (4) is arranged on the frame (1) and is arranged to slide along the width direction of the frame (1), and the telescopic end of the second piston pump (4) is connected to the connecting rod assembly (5); The adjusting mechanism (6) further comprises a first slider (61), a first screw rod (62) and a driving assembly (63), wherein the first slider (61) is fixedly connected to the second piston pump (4), the first screw rod (62) is arranged along the width direction of the frame (1), and both ends of the first screw rod (62) are rotatably connected to the frame (1), the first screw rod (62) passes through the first slider (61), and the first screw rod (62) is threadedly connected to the first slider (61); The driving assembly (63) is connected to one end of the first screw rod (62); A scale line (11) is provided on the surface of the frame (1) opposite to the first sliding block (61), and a plurality of the scale lines (11) are provided, and the plurality of the scale lines (11) are arranged at intervals along the width direction of the frame (1).

2. A triple delivery pump for convenient proportional adjustment of material delivery according to claim 1, characterized in that: The adjusting mechanism (6) further comprises a second slider (64), a second screw rod (65), a driving sprocket (66), a driven sprocket (67) and a chain (68); the second slider (64) is fixedly connected to a side of the second piston pump (4) away from the first slider (61); The second screw rod (65) is rotatably connected to the frame (1), and the second screw rod (65) is arranged parallel to the first screw rod (62), the second screw rod (65) passes through the second slider (64), and the second screw rod (65) is threadedly connected to the second slider (64); The driving sprocket (66) is coaxially fixedly connected to one end of the first screw rod (62), the driven sprocket (67) is coaxially fixedly connected to one end of the second screw rod (65), and the chain (68) is simultaneously wound around the driving sprocket (66) and the driven sprocket (67).

3. A triple delivery pump for convenient proportional adjustment of material delivery according to claim 1, characterized in that: The driving assembly (63) comprises a hand wheel (631), and the hand wheel (631) is coaxially fixedly connected to the first screw rod (62).

4. A triple delivery pump for convenient proportional adjustment of material delivery according to claim 3, characterized in that: The driving assembly (63) further comprises a driving motor (632), a driving gear (633), a driven gear (634) and a cover (635); the driving gear (633) is coaxially connected to the output shaft of the driving motor (632); the driven gear (634) is coaxially rotatably connected to the first screw rod (62); the driving gear (633) is meshed with the driven gear (634); the cover (635) is fixedly connected to the frame (1), and the cover (635) is arranged to wrap the driving gear (633) and the driven gear (634).

5. A triple delivery pump for convenient proportional adjustment of material delivery according to claim 1, characterized in that: The connecting rod assembly (5) comprises a first connecting rod (51) and a second connecting rod (52), wherein the first end of the first connecting rod (51) is hinged to the driving end of the linear drive mechanism (2), the second end of the first connecting rod (51) is hinged to one end of the second connecting rod (52), and the end of the second connecting rod (52) away from the first connecting rod (51) is hinged to the frame (1); The telescopic end of the second piston pump (4) is connected to the first connecting rod (51).

6. A triple delivery pump for convenient proportional adjustment of material delivery according to claim 5, characterized in that: The first piston pump (3) comprises a first cylinder (31), a first piston (32) and a first piston rod (33); the first cylinder (31) is mounted on the frame (1); the first piston (32) is coaxially slidably connected in the first cylinder (31); The first end of the first piston rod (33) extends into the first cylinder (31), and the first end of the first piston rod (33) is connected to the first piston (32); the second end of the first piston rod (33) extends out of the first cylinder (31) and is connected to the telescopic drive end of the linear drive mechanism (2); the outer wall of the first piston rod (33) is slidably sealed with the end of the first cylinder (31); The first piston (32) separates a first rod chamber (34) and a first rodless chamber (35) in the first cylinder (31); The first cylinder (31) is provided with a first feed port (311) and a first discharge port (312); the first feed port (311) is communicated with the first rodless cavity (35), and the first discharge port (312) is communicated with the first rod-containing cavity (34); The first piston (32) is provided with a first one-way valve (321) for controlling the flow of materials from the first rodless chamber (35) to the first rod chamber (34); The first cylinder (31) is provided with a second one-way valve (313), and the second one-way valve (313) is arranged at the first feed port (311).

7. A triple delivery pump for convenient proportional adjustment of material delivery according to claim 6, characterized in that: The second piston pump (4) comprises a second cylinder (41), a second piston (42), a second piston rod (43) and a third slider (44); the second cylinder (41) is slidably arranged on the frame (1); and the second piston (42) is coaxially slidably connected in the second cylinder (41); The first end of the second piston rod (43) extends into the second cylinder (41), and the first end of the second piston rod (43) is connected to the second piston (42), the second end of the second piston rod (43) extends out of the second cylinder (41) and is hinged to the third slider (44), the third slider (44) is slidably connected to the first connecting rod (51), and the outer wall of the second piston rod (43) is slidably and sealingly connected to the end of the second cylinder (41); The second piston (42) separates a second rod chamber (45) and a second rodless chamber (46) in the second cylinder (41); The second cylinder (41) is provided with a second feed port (411) and a second discharge port (412), wherein the second feed port (411) is communicated with the second rodless cavity (46), and the second discharge port (412) is communicated with the second rod-containing cavity (45); The second piston (42) is provided with a third one-way valve (421) for controlling the flow of materials from the second rodless chamber (46) to the second rod chamber (45); The second cylinder (41) is provided with a fourth one-way valve (413), and the fourth one-way valve (413) is arranged at the second feed port (411).

8. A triple delivery pump for convenient proportional adjustment of material delivery according to claim 7, characterized in that: Two second piston pumps (4) are arranged, and the two second piston pumps (4) are arranged in parallel on both sides of the first piston pump (3).

9. A triple delivery pump for convenient proportional adjustment of material delivery according to claim 6, characterized in that: The flow area of ​​the cross section of the first rodless cavity (35) is twice the flow area of ​​the cross section of the first rod-containing cavity (34).

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