Plunger pump with anti-corrosion function

Abstract

The utility model relates to the technical field of plunger pumps, in particular to a plunger pump with an anti-corrosion function, which comprises a protective shell, a plunger pump main body, a power component, a plunger rod, a working cavity, a connecting column, a protective coating, a bidirectional adjusting screw rod, a sealing shell and a sealing component, the plunger pump body is arranged on the inner side of the protective shell, the power assembly is arranged on one side of the plunger pump body, the connecting column is arranged on one side of the power assembly, the plunger rod is arranged at one end of the connecting column, the protective coating is arranged on the outer side of the plunger rod, the two-way adjusting lead screw is arranged below the plunger rod, and the sealing shell is arranged above the two-way adjusting lead screw. A sealing assembly is arranged on one side of the sealing shell, and a working cavity is formed in the inner side of the protective shell and located on one side of the plunger rod. According to the plunger pump, the surface of the plunger rod is prevented from being corroded by fluid in the mode of additionally arranging the coating and facilitating maintenance, the plunger rod is flexibly disassembled and assembled according to use requirements, replacement and maintenance operation is conveniently carried out, and therefore the service life of the plunger pump is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to plunger pump technical field especially a kind of plunger pump with anticorrosion function. BACKGROUND

[0002] In many industrial production and laboratory environments, it is critical to precisely control the amount of fluid delivered, and plunger pumps, by virtue of the reciprocating motion of the plunger, can achieve very precise flow output, and plunger pumps can also handle a variety of types of fluids, including viscous fluids, fluids containing solid particles, and corrosive fluids, etc.

[0003] The plunger rod protection structure of the plunger pump is currently set relatively simply, when delivering corrosive fluid, the surface of the plunger rod is easily corroded, affecting the normal operation of the pump body, and the plunger rod is often directly arranged inside the pump body, so that maintenance and replacement are inconvenient, which may affect the service life of the pump body.

[0004] Therefore, in view of the fact that the existing plunger pump is easily corroded by fluid, thereby shortening the service life of the pump body, a plunger pump with anticorrosion function can be designed, a coating is additionally arranged, the surface of the plunger rod is prevented from being corroded by fluid in a convenient maintenance manner, the plunger rod can be flexibly disassembled and assembled according to the use requirement, replacement and maintenance operations are convenient, and thus the service life of the plunger pump is effectively prolonged. SUMMARY

[0005] In order to overcome the problem that the surface of the plunger rod is easily corroded when most plunger pumps deliver corrosive fluid, and the plunger rod is often directly arranged inside the pump body, so that maintenance and replacement are inconvenient, which may affect the service life of the pump body.

[0006] The technical scheme of the utility model is as follows: a plunger pump with anticorrosion function, comprising a protective shell, a plunger pump main body, a power assembly, a plunger rod, a working cavity, a connecting column, a protective coating, a connecting assembly, a bidirectional adjusting screw rod, an adjusting assembly, a sealing shell and a sealing assembly; the inner side of the protective shell is provided with the plunger pump main body, one side of the plunger pump main body is provided with the power assembly, one side of the power assembly is provided with the connecting column, one end of the connecting column is provided with the plunger rod, the outer side of the plunger rod is provided with the protective coating, one side of the plunger rod is connected with the connecting assembly, the lower side of the plunger rod is provided with the bidirectional adjusting screw rod, the outer side of the bidirectional adjusting screw rod is provided with the adjusting assembly, the upper side of the bidirectional adjusting screw rod is provided with the sealing shell, the sealing shell is symmetrically provided with two groups, two groups of the sealing shell combine to seal the plunger rod, one side of the sealing shell is provided with the sealing assembly, the inner side of the protective shell is provided with the working cavity, and the working cavity is arranged on one side of the plunger rod.

[0007] Preferably, the plunger pump body is protected in the protective shell, the plunger rod is connected and fixed by the connecting column, the corrosion resistance of the plunger rod is enhanced by the protective coating, the bidirectional adjusting screw is driven to rotate by the adjusting assembly, the distance between the two groups of sealing shells is adjusted by rotating the bidirectional adjusting screw, the plunger rod is flexibly wrapped and protected in the sealing shell, the sealing effect of the sealing shell is ensured by the sealing assembly, the plunger pump body is driven to operate by the power assembly, the plunger rod is reciprocatingly displaced by operating the plunger pump body, and the fluid flow in the working chamber is controlled by moving the plunger rod, so that the surface of the plunger rod is prevented from being corroded by the fluid, and the plunger rod can be flexibly disassembled according to the use requirement, convenient replacement and maintenance work is achieved, and the service life of the plunger pump is prolonged.

[0008] Preferably, the power assembly comprises a first motor, a rotating disc, a transmission disc and a transmission shaft; the protective shell is provided with the first motor on one side, the rotating disc is arranged on the inner side of the protective shell, the transmission disc is arranged on the inner side of the rotating disc, and the transmission shaft is arranged on one side of the transmission disc.

[0009] Preferably, the output end of the first motor is connected with the rotating disc, the transmission disc is rotatably connected with the rotating disc, and one end of the transmission shaft is rotatably connected with the connecting column.

[0010] Preferably, the connecting assembly comprises a threaded groove and a mounting column; the connecting column is provided with the threaded groove on one side, and the plunger rod is provided with the mounting column on one end, and the mounting column is threadedly connected with the threaded groove.

[0011] Preferably, the adjusting assembly comprises a base, a second motor and a connecting block; the plunger rod is provided with the base below, the second motor is arranged on the outer side of the base, the connecting block is arranged on the outer side of the bidirectional adjusting screw, and the connecting block is fixedly connected with the sealing shell on one side.

[0012] Preferably, the bidirectional adjusting screw is arranged on the inner side of the base, the output end of the second motor is connected with the bidirectional adjusting screw, and the connecting block is symmetrically provided with two groups.

[0013] Preferably, the sealing assembly comprises an annular sealing groove and an arc-shaped sealing strip; the protective shell is provided with the annular sealing groove on one side, the annular sealing groove is symmetrically provided with two groups, the sealing shell is provided with the arc-shaped sealing strip on the inner side, and the arc-shaped sealing strip is embedded with the annular sealing groove.

[0014] The utility model discloses the beneficial effects of:

[0015] 1. When the plunger pump body is running, the plunger pump body is protected in the protection shell, the plunger rod is connected and fixed by the connecting column, the corrosion resistance of the plunger rod is enhanced by the protective coating, the distance between the two groups of sealing shells is adjusted by rotating the bidirectional adjusting screw, the plunger rod is flexibly wrapped and protected in the sealing shell, the plunger pump body drives the reciprocating displacement of the plunger rod, and the fluid flow in the working cavity is controlled by moving the plunger rod, so that the surface of the plunger rod is easily corroded when most of the plunger pumps transport corrosive fluid, the normal operation of the pump body is affected, and the plunger rod is often directly arranged in the pump body, so that the operation is relatively inconvenient when maintaining and replacing, and the service life of the plunger pump is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic view of a plunger pump with a corrosion prevention function is shown.

[0017] Figure 2 A three-dimensional structure schematic view of a plunger pump with a corrosion prevention function is shown.

[0018] Figure 3 A three-dimensional structure schematic view of a plunger pump with a corrosion prevention function is shown.

[0019] Figure 4 A three-dimensional structure schematic view of a plunger pump with a corrosion prevention function is shown.

[0020] The figure mark explanation: 1, the protection shell; 2, the plunger pump body; 201, the first motor; 202, the rotating disc; 203, the transmission disc; 204, the transmission shaft; 3, the connecting column; 4, the plunger rod; 401, the protective coating; 402, the threaded groove; 403, the mounting column; 5, the bidirectional adjusting screw; 501, the base; 502, the second motor; 503, the connecting block; 6, the sealing shell; 601, the annular sealing groove; 602, the arc-shaped sealing strip; 7, the working cavity. DETAILED DESCRIPTION

[0021] The utility model will be further explained in connection with the drawings and examples.

[0022] Please refer to Figures 1-4The utility model provides an embodiment: a plunger pump with anticorrosion function, including protection shell 1, plunger pump main part 2, power assembly, plunger rod 4, working chamber 7, connecting column 3, protective coating 401, connecting assembly, two -way adjusting screw rod 5, adjusting assembly, seal shell 6 and sealing assembly, the inside of protection shell 1 is provided with plunger pump main part 2, one side of plunger pump main part 2 is provided with power assembly, one side of power assembly is provided with connecting column 3, one end of connecting column 3 is provided with plunger rod 4, the outside of plunger rod 4 is provided with protective coating 401, one side of plunger rod 4 connecting assembly, the below of plunger rod 4 is provided with two -way adjusting screw rod 5, the outside of two -way adjusting screw rod 5 is provided with adjusting assembly, the above of two -way adjusting screw rod 5 is provided with seal shell 6, two groups of seal shell 6 are symmetrically set up, and two groups of seal shell 6 combination seal in plunger rod 4, one side of seal shell 6 is provided with sealing assembly, the inside of protection shell 1 is provided with working chamber 7, and working chamber 7 sets up one side of plunger rod 4.

[0023] Please refer to Figures 1-3 In the embodiment, the power assembly includes a first motor 201, a rotating disc 202, a transmission disc 203 and a transmission shaft 204; the first motor 201 is arranged on one side of the protection shell 1, the output end of the first motor 201 is connected with the rotating disc 202, the rotating disc 202 is arranged on the inside of the protection shell 1, the inside of the rotating disc 202 is provided with the transmission disc 203, the transmission disc 203 is rotatably connected with the rotating disc 202, the transmission shaft 204 is arranged on one side of the transmission disc 203, one end of the transmission shaft 204 is rotatably connected with the connecting column 3, the rotating disc 202 is driven to rotate by the first motor 201, the transmission disc 203 is driven to rotate by the rotating disc 202, the transmission shaft 204 is synchronously displaced by the transmission disc 203, and the connecting column 3 is flexibly pushed and pulled by the transmission shaft 204.

[0024] Please refer to Figure 4In the embodiment, the adjusting assembly comprises a base 501, a second motor 502 and a connecting block 503; the base 501 is arranged below the plunger rod 4, the bidirectional adjusting screw rod 5 is arranged at the inner side of the base 501, the second motor 502 is arranged at the outer side of the base 501, the output end of the second motor 502 is connected with the bidirectional adjusting screw rod 5, the connecting block 503 is arranged at the outer side of the bidirectional adjusting screw rod 5, the connecting block 503 is symmetrically arranged with two groups, one side of the connecting block 503 is fixedly connected with the sealing shell 6, the position of the bidirectional adjusting screw rod 5 is fixed by the base 501, the bidirectional adjusting screw rod 5 is driven to rotate by the second motor 502, the distance between the connecting blocks 503 is adjusted by rotating the bidirectional adjusting screw rod 5, the sealing shell 6 is fixedly connected by the connecting block 503, so that the flexible opening and closing effect of the plunger rod 4 is realized; the sealing assembly comprises an annular sealing groove 601 and an arc-shaped sealing strip 602; the annular sealing groove 601 is arranged at one side of the protective shell 1, the annular sealing groove 601 is symmetrically arranged with two groups, the arc-shaped sealing strip 602 is arranged at the inner side of the sealing shell 6, the arc-shaped sealing strip 602 is embedded in the annular sealing groove 601, so that the sealing effect of the sealing shell 6 is ensured.

[0025] Before using the plunger pump body 2, the second motor 502 on the base 501 drives the bidirectional adjusting screw rod 5 to rotate, the distance between the two connecting blocks 503 is adjusted by rotating the bidirectional adjusting screw rod 5, so that the two sealing shells 6 are removed;

[0026] Then, the protective coating 401 is coated on the surface of the plunger rod 4, the mounting column 403 is rotated along the thread groove 402, the plunger rod 4 is installed at one end of the connecting column 3, then the connecting block 503 is moved by rotating the bidirectional adjusting screw rod 5, the sealing shell 6 is combined, and the arc-shaped sealing strip 602 is embedded in the annular sealing groove 601.

[0027] When the plunger pump body 2 is used, the first motor 201 of the protective shell 1 drives the rotating disc 202 to rotate, the rotating disc 202 drives the transmission disc 203 to rotate, the transmission disc 203 adjusts the position of the transmission shaft 204, the plunger rod 4 is reciprocally pushed and pulled by the transmission shaft 204, the extension and retraction of the plunger rod 4 adjusts the pressure inside the working cavity 7, and the fluid conveying operation is performed.

[0028] Through the above steps, the plunger pump body 2 is protected in the protection shell 1 by setting, the plunger rod 4 is connected and fixed by the connecting column 3, the corrosion resistance of the plunger rod 4 is enhanced by the protection coating 401, the two-way adjusting screw 5 is rotated by the adjusting assembly, the interval between the two sets of sealing shells 6 is adjusted by rotating the two-way adjusting screw 5, the plunger rod 4 is flexibly wrapped and protected in the sealing shell 6, the sealing effect of the sealing shell 6 is guaranteed by the sealing assembly, the plunger pump body 2 is driven to run by the power assembly, the plunger rod 4 is reciprocatingly displaced by running the plunger pump body 2, the fluid flow in the working cavity 7 is controlled by moving the plunger rod 4, so that the surface of the plunger rod 4 is prevented from being corroded by the fluid, and the plunger rod 4 can be flexibly disassembled according to the use requirement, so that the replacement maintenance work is conveniently carried out.

[0029] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A plunger pump with anti-corrosion function, comprising a protective shell (1), a plunger pump body (2), a power assembly, a plunger rod (4), and a working cavity (7); characterized in that: The utility model also includes connecting column (3), protective coating (401), connecting assembly, two -way adjusting screw rod (5), adjusting assembly, sealed shell (6) and sealing assembly; the inside of protective shell (1) is provided with plunger pump body (2), one side of plunger pump body (2) is provided with power assembly, one side of power assembly is provided with connecting column (3), one end of connecting column (3) is provided with plunger rod (4), the outside of plunger rod (4) is provided with protective coating (401), one side of plunger rod (4) is connected with connecting assembly, the below of plunger rod (4) is provided with two -way adjusting screw rod (5), the outside of two -way adjusting screw rod (5) is provided with adjusting assembly, the above of two -way adjusting screw rod (5) is provided with sealed shell (6), sealed shell (6) is provided with two groups of symmetry, two groups of sealed shell (6) combination seals plunger rod (4) in, one side of sealed shell (6) is provided with sealing assembly, the inside of protective shell (1) is provided with working cavity (7), working cavity (7) sets up one side of plunger rod (4).

2. The plunger pump with anti-corrosion function according to claim 1, characterized in that: Power assembly includes first motor (201), rotating disc (202), transmission disc (203) and transmission shaft (204), one side of protective shell (1) is provided with first motor (201), the inside of protective shell (1) is provided with rotating disc (202), the inside of rotating disc (202) is provided with transmission disc (203), one side of transmission disc (203) is provided with transmission shaft (204).

3. A plunger pump with anti-corrosion function according to claim 2, characterized in that: The output end of first motor (201) is connected with rotating disc (202), transmission disc (203) is rotatably connected with rotating disc (202), one end of transmission shaft (204) is rotatably connected with connecting column (3).

4. The plunger pump with anti-corrosion function according to claim 2, characterized in that: Connecting assembly includes screw groove (402) and mounting column (403), one side of connecting column (3) is provided with screw groove (402), one end of plunger rod (4) is provided with mounting column (403), mounting column (403) is screwedly connected with screw groove (402).

5. The plunger pump with anti-corrosion function according to claim 2, characterized in that: Adjusting assembly includes base (501), second motor (502) and connecting block (503), the below of plunger rod (4) is provided with base (501), the outside of base (501) is provided with second motor (502), the outside of two -way adjusting screw rod (5) is provided with connecting block (503), one side of connecting block (503) is fixedly connected with sealed shell (6).

6. A plunger pump with anti-corrosion function according to claim 5, characterized in that: Two -way adjusting screw rod (5) is arranged in the inside of base (501), the output end of second motor (502) is connected with two -way adjusting screw rod (5), connecting block (503) is provided with two groups of symmetry.

7. The plunger pump with anti-corrosion function according to claim 5, characterized in that: Sealing assembly includes annular sealing groove (601) and arc sealing strip (602), one side of protective shell (1) is provided with annular sealing groove (601), annular sealing groove (601) is provided with two groups of symmetry, the inside of sealed shell (6) is provided with arc sealing strip (602), arc sealing strip (602) is embedded with annular sealing groove (601).

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