Three-pump head hydraulic diaphragm pump

Abstract

The utility model relates to the technical fields of diaphragm pump discloses a three pump head hydraulic diaphragm pump, including base, the top fixed mounting of base has the pump body, the right side fixed mounting of pump body has the pump head through the connecting mechanism, the inner surface fixed mounting of pump body has the drive mechanism, the connecting mechanism includes the connecting box, the left side of connecting box is linked with the right side of pump body through the bolt no. The three pump head hydraulic diaphragm pump, through the connecting box connection between pump head and pump body, and through the bolt no. and the bolt no. 2 are connected, then increase the length of connecting rod, through the series connection three pump heads and adopt the connecting box integrated flow channel, has constructed a three -stage hydraulic pressure supercharging system, and its core effect is to realize the step -by -step superposition of pressure, thereby the single pump head cannot realize the superhigh pressure output at the export. Simultaneously increase the length of connecting rod and optimize the power transmission, significantly reduce the lateral force, improve the operation stability and the sealing life under high pressure.

Description

Technical Field

[0001] This utility model relates to the technical field of diaphragm pumps, and in particular to a three-pump head hydraulic diaphragm pump. Background Technology

[0002] A diaphragm pump is a positive displacement pump that uses the reciprocating deformation of a flexible diaphragm to transport fluids. Its core feature is that the diaphragm completely isolates the drive end from the medium being transported, achieving an absolute seal. This makes it particularly adept at safely and leak-free handling various highly corrosive, high-viscosity, particle-containing, or high-purity media. Benefiting from its precise metering, strong self-priming capability, and resistance to dry-running damage, diaphragm pumps are widely used in fluid transport and precision metering processes in industries such as chemical, pharmaceutical, food, and water treatment.

[0003] Existing hydraulic diaphragm metering pumps, when facing high flow conditions, generally employ an increased number of pump heads connected in parallel, but the connections between these pump heads are not stable. Furthermore, achieving high flow rates often compromises high pressure. Utility Model Content

[0004] In view of the problems of existing diaphragm pumps, such as the unstable connection between multiple pump heads when used in parallel, the large flow pulsation, the dispersed and limited thrust, and the poor operational stability caused by periodic impact loads, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a three-pump head hydraulic diaphragm pump, the purpose of which is that the three pump heads of the diaphragm pump are stably connected, and the piston is driven by the crankshaft, which provides greater force to the piston and the hydraulic chamber can generate higher pressure.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a three-pump head hydraulic diaphragm pump, including a base, a pump body fixedly installed on the top of the base, a pump head fixedly installed on the right side of the pump body through a connecting mechanism, and a drive mechanism fixedly installed on the inner surface of the pump body; The connecting mechanism includes a connecting box, the left side of which is connected to the right side of the pump body by a first bolt, and the right side of which is connected to the left side of the pump head by a second bolt.

[0007] In a preferred embodiment of the three-pump head hydraulic diaphragm pump of this utility model, the drive mechanism includes a drive assembly, the drive assembly includes a motor, the bottom of the motor is fixedly connected to the top of the pump body, the output end of the motor is fixedly mounted with a rotating shaft through a reducer, and a worm gear is fixedly mounted on the outer surface of the rotating shaft.

[0008] In a preferred embodiment of the three-pump head hydraulic diaphragm pump of this utility model, the drive mechanism further includes a rotating rod, the two ends of which are rotatably connected to the inner surface of the pump body, and a worm gear is fixedly installed on the outer surface of the rotating rod.

[0009] As a preferred embodiment of the three-pump head hydraulic diaphragm pump of this utility model, the drive mechanism further includes a hydraulic reciprocating assembly, which includes a crankshaft. The right side of the crankshaft is engaged with the left end of the rotating rod. A connecting rod is provided on the outer surface of the crankshaft. The inner surface of the connecting rod is rotatably connected to the outer surface of the crankshaft. A crosshead rod is fixedly installed on the right end of the connecting rod.

[0010] In a preferred embodiment of the three-pump head hydraulic diaphragm pump of this utility model, the hydraulic reciprocating assembly further includes a guide sleeve, the outer surface of which is fixedly connected to the inner surface of the connecting box, and the inner surface of which is slidably connected to the outer surface of the crosshead rod.

[0011] In a preferred embodiment of the three-pump head hydraulic diaphragm pump of this utility model, the hydraulic reciprocating assembly further includes a plunger, the left end of which is fixedly connected to the right end of the crosshead rod, a pump diaphragm is fixedly installed on the outer surface of the plunger, and the outer surface of the pump diaphragm is fixedly connected to the inner surface of the pump head.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model improves the diaphragm pump's ability to withstand high pressure by adding a design that enhances the pump's high pressure resistance. Through the coordinated use of the pump body and pump head with the connecting box, and the coordinated use of the connecting box with bolts No. 1 and No. 2, the parallel pump heads are transformed into a single pump head, which is then installed on the pump body. This enhances the diaphragm pump's ability to achieve ultra-high pressure output. At the same time, the extended connecting rod optimizes power transmission, significantly reduces lateral forces, and improves operational stability and sealing life under high pressure.

[0013] 2. This utility model improves thrust by adding a diaphragm pump. Through the coordinated use of a motor and rotating shaft with a worm and worm wheel, the worm wheel and rotating rod with a crankshaft and connecting rod, and the connecting rod and crosshead rod with a plunger and pump diaphragm, the crankshaft-driven system, with three symmetrically distributed connecting rods at 120-degree angles, achieves seamless power output. This fundamentally overcomes the inherent drawbacks of single-shaft drives, such as large flow pulsation, dispersed and limited thrust, and poor operational stability due to periodic impact loads. Therefore, it provides a more stable flow rate, stronger thrust, and superior operational stability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the three-pump head hydraulic diaphragm pump of this utility model; Figure 2 This is a schematic diagram of the overall internal longitudinal section structure of the three-pump head hydraulic diaphragm pump of this utility model; Figure 3 This is a schematic diagram of the internal longitudinal section structure of the three-pump head hydraulic diaphragm pump of this utility model. Figure 4 This is a schematic diagram of the overall exploded structure of the three-pump head hydraulic diaphragm pump of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Base; 2. Pump body; 3. Connecting mechanism; 31. Connecting box; 32. Bolt No. 1; 33. Bolt No. 2; 4. Pump head; 5. Drive mechanism; 51. Drive assembly; 511. Motor; 512. Rotating shaft; 513. Worm gear; 514. Rotating rod; 515. Worm wheel; 52. Hydraulic reciprocating assembly; 521. Crankshaft; 522. Connecting rod; 523. Crosshead rod; 524. Guide sleeve; 525. Plunger; 526. Pump diaphragm. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example

[0017] Reference Figures 1-2 The first embodiment of this utility model provides a three-pump head hydraulic diaphragm pump. This three-pump head hydraulic diaphragm pump includes a base 1, a pump body 2 fixedly installed on the top of the base 1, a pump head 4 fixedly installed on the right side of the pump body 2 through a connecting mechanism 3, and a drive mechanism 5 fixedly installed on the inner surface of the pump body 2. The connecting mechanism 3 includes a connecting box 31. The left side of the connecting box 31 is connected to the right side of the pump body 2 by a first bolt 32, and the right side of the connecting box 31 is connected to the left side of the pump head 4 by a second bolt 33.

[0018] During operation, a three-stage hydraulic booster system is constructed by connecting the pump head 4 and the pump body 2 with a connecting box 31 and bolts 32 and 33, and then increasing the length of the connecting rod 522. This system connects three pump heads 4 in series and integrates the flow channels using the connecting box 31. Its core effect is to achieve a progressive pressure boost, resulting in an ultra-high pressure output at the outlet that cannot be achieved by a single pump head 4. Simultaneously, increasing the length of the connecting rod 522 optimizes power transmission, significantly reduces lateral forces, and improves operational stability and seal life under high pressure. Example

[0019] Reference Figures 1-4This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the drive mechanism 5 includes a drive component 51, the drive component 51 includes a motor 511, the bottom of the motor 511 is fixedly connected to the top of the pump body 2, the output end of the motor 511 is fixedly mounted with a rotating shaft 512 through a reducer, and a worm gear 513 is fixedly mounted on the outer surface of the rotating shaft 512.

[0020] The drive mechanism 5 also includes a rotating rod 514, the two ends of which are rotatably connected to the inner surface of the pump body 2, and a worm gear 515 is fixedly installed on the outer surface of the rotating rod 514.

[0021] The drive mechanism 5 also includes a hydraulic reciprocating assembly 52, which includes a crankshaft 521. The right side of the crankshaft 521 is engaged with the left end of the rotating rod 514. A connecting rod 522 is provided on the outer surface of the crankshaft 521. The inner surface of the connecting rod 522 is rotatably connected to the outer surface of the crankshaft 521. A crosshead rod 523 is fixedly installed on the right end of the connecting rod 522.

[0022] The hydraulic reciprocating assembly 52 also includes a guide sleeve 524, the outer surface of which is fixedly connected to the inner surface of the connecting box 31, and the inner surface of which is slidably connected to the outer surface of the crosshead rod 523.

[0023] The hydraulic reciprocating assembly 52 also includes a plunger 525, the left end of which is fixedly connected to the right end of the crosshead rod 523, and a pump diaphragm 526 is fixedly installed on the outer surface of the plunger 525. The outer surface of the pump diaphragm 526 is fixedly connected to the inner surface of the pump head 4.

[0024] During operation, the motor 511 rotates via the rotating shaft 512. The rotating shaft 512 drives the worm wheel 515 to rotate via the worm gear 513. The worm wheel 515 drives the crankshaft 521 to rotate via the rotating rod 514. The crankshaft 521 drives the crosshead rod 523 to rotate via the connecting rod 522. The crosshead rod 523 drives the pump diaphragm 526 to reciprocate via the plunger 525. The crankshaft 521 is driven by three connecting rods 522 that are symmetrically distributed at 120 degrees, working together to achieve seamless power output. This fundamentally overcomes the inherent disadvantages of single-shaft drive, such as large flow pulsation, dispersed and limited thrust, and poor operational stability due to periodic impact loads. As a result, it can provide a more stable flow, stronger thrust, and better operational stability.

[0025] The remaining structure is the same as that in Example 1.

[0026] Based on embodiments 1-2, the working principle of this utility model is as follows: The motor 511 rotates through the rotating shaft 512, which in turn drives the worm wheel 515 to rotate through the worm gear 513. The worm wheel 515 drives the crankshaft 521 to rotate through the rotating rod 514. The crankshaft 521 drives the crosshead rod 523 to rotate through the connecting rod 522. The crosshead rod 523 drives the pump diaphragm 526 to reciprocate through the plunger 525. The crankshaft 521 drives the three connecting rods 522, which are symmetrically distributed at 120 degrees, to work together, achieving seamless connection of power output. This fundamentally overcomes the inherent disadvantages of single-shaft drive, such as large flow pulsation, dispersed and limited thrust, and poor operational stability due to periodic impact loads. As a result, it can provide a more stable flow, stronger thrust, and better operational stability. By connecting the pump head 4 and the pump body 2 with a connecting box 31 and bolts 32 and 33, and then increasing the length of the connecting rod 522, a three-stage hydraulic booster system is constructed by connecting three pump heads 4 in series and integrating the flow channel using the connecting box 31. Its core effect is to achieve a step-by-step pressure superposition, thereby generating an ultra-high pressure output at the outlet that a single pump head 4 cannot achieve. Simultaneously, increasing the length of the connecting rod 522 optimizes power transmission, significantly reduces lateral forces, and improves operational stability and seal life under high pressure.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A three-pump head hydraulic diaphragm pump, comprising a base (1), characterized in that: A pump body (2) is fixedly installed on the top of the base (1), a pump head (4) is fixedly installed on the right side of the pump body (2) through a connecting mechanism (3), and a drive mechanism (5) is fixedly installed on the inner surface of the pump body (2). The connecting mechanism (3) includes a connecting box (31). The left side of the connecting box (31) is connected to the right side of the pump body (2) by a first bolt (32), and the right side of the connecting box (31) is connected to the left side of the pump head (4) by a second bolt (33).

2. The three-pump head hydraulic diaphragm pump according to claim 1, characterized in that: The drive mechanism (5) includes a drive assembly (51), which includes a motor (511). The bottom of the motor (511) is fixedly connected to the top of the pump body (2). The output end of the motor (511) is fixedly mounted with a rotating shaft (512) via a reducer. A worm gear (513) is fixedly mounted on the outer surface of the rotating shaft (512).

3. The three-pump head hydraulic diaphragm pump according to claim 2, characterized in that: The drive mechanism (5) also includes a rotating rod (514), the two ends of which are rotatably connected to the inner surface of the pump body (2), and a worm gear (515) is fixedly installed on the outer surface of the rotating rod (514).

4. The three-pump head hydraulic diaphragm pump according to claim 1, characterized in that: The drive mechanism (5) further includes a hydraulic reciprocating assembly (52), which includes a crankshaft (521). The right side of the crankshaft (521) is engaged with the left end of the rotating rod (514). A connecting rod (522) is provided on the outer surface of the crankshaft (521). The inner surface of the connecting rod (522) is rotatably connected to the outer surface of the crankshaft (521). A crosshead rod (523) is fixedly installed on the right end of the connecting rod (522).

5. The three-pump head hydraulic diaphragm pump according to claim 4, characterized in that: The hydraulic reciprocating assembly (52) also includes a guide sleeve (524), the outer surface of which is fixedly connected to the inner surface of the connecting box (31), and the inner surface of which is slidably connected to the outer surface of the crosshead rod (523).

6. The three-pump head hydraulic diaphragm pump according to claim 4, characterized in that: The hydraulic reciprocating assembly (52) also includes a plunger (525), the left end of which is fixedly connected to the right end of the crosshead rod (523), and a pump diaphragm (526) is fixedly installed on the outer surface of the plunger (525), and the outer surface of the pump diaphragm (526) is fixedly connected to the inner surface of the pump head (4).

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