An integral pump for a liquid

Abstract

The present invention discloses an integral pump for liquids, which includes a pump body. The pump body is connected to a pump body support frame. The pump body support frame is connected to a first cylinder through a cylinder connecting plate. The first cylinder is connected to a piston through a floating joint. The piston reciprocates in a straight-through metering pump body. The straight-through metering pump body is connected to the pump body and fixed inside the pump body support frame. The straight-through metering pump body is communicated with a cock D inside the pump body through the pump body. The cock D is connected to a gear through a rotating shaft A. A rack is arranged on the gear. The rack is connected to a second cylinder through a cylinder joint. The second cylinder is converted into the rotational power of the cock D through the gear and the rack. The present invention uses a cylinder to drive a rack and a gear to drive the rotation of the cock, avoiding large friction between the cock and the pump body after the cock is subjected to a radial force and preventing the phenomenon of jamming.

Description

Technical Field

[0001] The present invention relates to the technical field of integral pumps, and more specifically, to an integral pump for liquids. Background Art

[0002] A unit pump refers to one oil pump for one cylinder, where the oil pump here refers to a high-pressure oil pump, or a fuel injection pump. An integral pump means that all cylinders share one high-pressure oil pump. Compared with an integral pump, a unit pump can be made larger. For example, large-power diesel engines generally use unit pumps. In addition, if the oil pump of a unit pump is damaged, only one oil pump needs to be replaced instead of replacing all of them like an integral pump, resulting in lower costs.

[0003] Currently, there are many problems in the manufacture of integral pumps, such as the phenomenon of the cock being stuck and there are great potential safety hazards.

[0004] In view of the problems in the related art, no effective solution has been proposed yet. Summary of the Invention

[0005] The purpose of the present invention is to provide an integral pump for liquids to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An integral pump for liquids, including a pump body, the pump body is connected to a pump body support frame, the pump body support frame is connected to a first cylinder through a cylinder connection plate, the first cylinder is connected to a piston through a floating joint, the piston reciprocates in a direct metering pump body, the direct metering pump body is connected to the pump body and fixed inside the pump body support frame, the direct metering pump body is communicated with a cock D inside the pump body through the pump body, the cock D is connected to a gear through a rotating shaft A, the gear is provided with a rack, the rack is connected to a second cylinder through a cylinder joint, and the second cylinder is converted into the rotational power of the cock D through the gear and the rack.

[0008] Further, a sealing ring is used for sealing between the cylinder connection plate and the cylinder.

[0009] Further, the pump body is connected to a rotary valve fixing plate, and the rotary valve fixing plate is connected to the second cylinder.

[0010] Further, the pump body is fixedly connected with a discharge nozzle joint and a left end cover, and the discharge nozzle joint and the left end cover are fixed to the pump body with screws.

[0011] Further, the pump body is provided with a piston sealing pressing plate, and the piston sealing pressing plate is fixed to the pump body support frame.

[0012] Further, the piston is linked with the cock D, and the cock D rotates while the piston reciprocates.

[0013] Further, bearings are provided at both ends of the gear, and the bearings are used for the rotation of the gear.

[0014] Further, bearing guides are provided on the rack, and the bearing guides are fixed by the small rotating shaft of the pump body.

[0015] Further, a first sealing ring is provided outside the rotating shaft A, and a second sealing ring is provided outside the piston.

[0016] Further, a third sealing ring is provided on the outer shell of the rotating shaft A, and a fourth sealing ring is provided between the straight-through metering pump body and the pump body.

[0017] Working principle of the present invention: When the second cylinder 19 contracts to the Figure 1 position, the feed port of the pump body 16 is aligned with one inlet of the plug 6, and at the same time, the straight-through metering pump body 4 is aligned with one inlet of the plug 6, so that the straight-through metering pump body 4 is connected to the feed port through the plug 6. The piston 1 in the straight-through metering pump body 4 completes the suction action driven by the contraction of the first cylinder 20. When the second cylinder 19 extends, the discharge nozzle joint 18 on the pump body 16 is aligned with the other inlet of the plug 6, and at the same time, the straight-through metering pump body 4 is aligned with the other inlet of the plug 6, so that the straight-through metering pump body 4 is connected to the discharge nozzle joint 18 through the plug 6. The piston 1 in the straight-through metering pump body 4 completes the discharging action driven by the extension of the first cylinder 20.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention uses a cylinder to drive a rack and gear to drive the rotation of the plug, avoiding large friction between the plug and the pump body after the plug is subjected to a radial force and preventing the phenomenon of jamming; (2) Compared with the existing mechanism, the space occupied by this structure is reduced a lot. The space occupied by the present invention is only 41% of the current one; (3) The key moving parts of the present invention are not exposed, avoiding potential safety hazards of mechanical movements; (4) The present invention will not cause harm to the outside, and at the same time, it also avoids the influence of the outside on this equipment, ensuring the long-term stable accuracy of metering.

[0019] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1It is a schematic structural diagram of an integral pump for liquids according to the present invention;

[0022] Figure 2 It is a schematic structural diagram of an integral pump for liquids according to the present invention;

[0023] Figure 3 It is a schematic structural diagram of an integral pump for liquids according to the present invention.

[0024] In the figure: 1. Piston, 2. Cylinder connecting plate, 3. Pump body support frame, 4. Straight-through metering pump body, 5. First guide rail, 6. Cock D, 10. Gear, 11. Rack, 12. Pressing ring, 13. Rotary valve fixing plate, 15. Discharge nozzle, 16. Pump body, 17. Left end cover, 18. Discharge nozzle joint, 19. Second cylinder, 20. First cylinder, 23. Second sealing ring, 26. Handle, 29. Fourth sealing ring. Detailed Description of the Invention

[0025] Here, exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0026] Next, with reference to the drawings and specific embodiments, the invention will be further described:

[0027] As Figures 1-3 shown, an integral pump for liquids, characterized in that it includes a pump body 16, the pump body 16 is connected to a pump body support frame 3, the pump body support frame 3 is connected to a first cylinder 20 through a cylinder connecting plate 2, the first cylinder 20 is connected to a piston 1 through a floating joint 26, the piston 1 reciprocates in a straight-through metering pump body 4, the straight-through metering pump body 4 is connected to the pump body 16 and fixed inside the pump body support frame 3, the straight-through metering pump body 4 is communicated with a cock D 6 inside the pump body 16 through the pump body 16, the cock D 6 is connected to a gear 10 through a rotating shaft A, the gear 10 is provided with a rack 11, the rack 11 is connected to a second cylinder 19 through a cylinder joint 15, and the second cylinder 19 is converted into the rotational power of the cock D 6 through the gear 10 and the rack 11.

[0028] When the second cylinder 19 contracts at Figure 1 a position, the feed port of the pump body 16 is aligned with an inlet of the cock 6, and at the same time, the straight-through metering pump body 4 is aligned with an inlet of the cock 6, so that the straight-through metering pump body 4 is connected to the feed port through the cock 6. The piston 1 in the straight-through metering pump body 4 completes the suction action driven by the contraction of the first cylinder 20. When the second cylinder 19 extends atFigure 2 When in this position, the discharge nozzle joint 18 on the pump body 16 aligns with the other inlet of the cock 6, and at the same time, the straight-through metering pump body 4 aligns with the other inlet of the cock 6, so that the straight-through metering pump body 4 is connected to the discharge nozzle joint 18 through the cock 6. The piston 1 in the straight-through metering pump body 4 completes the discharging action driven by the extension of the first cylinder 20.

[0029] According to the above, a sealing ring is used for sealing between the cylinder connecting plate 2 and the first cylinder 20.

[0030] According to the above, the pump body 16 is connected to the rotary valve fixing plate 13, and the rotary valve fixing plate 13 is connected to the second cylinder 19.

[0031] According to the above, the pump body 16 is fixedly connected with a discharge nozzle joint 18 and a left end cover 17, and the discharge nozzle joint 18 and the left end cover 17 are fixed to the pump body 16 by screws.

[0032] According to the above, the pump body 16 is provided with a piston sealing pressing plate 5, and the piston sealing pressing plate 5 is fixed to the pump body support frame 3.

[0033] According to the above, the piston 1 is linked with the cock D6, and the cock D6 rotates while the piston 1 reciprocates.

[0034] According to the above, bearings are arranged at both ends of the gear 10, and the bearings are used for the rotation of the gear 10.

[0035] According to the above, bearing guides are arranged on the rack 11, and the bearing guides are fixed by the small rotating shaft 12 of the pump body 16.

[0036] According to the above, a first sealing ring is arranged outside the rotating shaft A, and a second sealing ring 23 is arranged outside the piston 1.

[0037] According to the above, a third sealing ring is arranged on the outer shell of the rotating shaft A, and a fourth sealing ring 29 is arranged between the straight-through metering pump body 4 and the pump body 16.

[0038] After considering the specification and practice of the disclosure herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include the common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0039] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. An integral pump for liquids, characterized in that, it includes a pump body (16), the pump body (16) is connected to a pump body support frame (3), the pump body support frame (3) is connected to a first cylinder (20) through a cylinder connecting plate (2), the first cylinder (20) is connected to a piston (1) through a floating joint (26), the piston (1) reciprocates in a straight-through metering pump body (4), the straight-through metering pump body (4) is connected to the pump body (16) and fixed inside the pump body support frame (3), the straight-through metering pump body (4) is communicated with a cock D (6) inside the pump body (16) through the pump body (16), the cock D (6) is connected to a gear (10) through a rotating shaft A, the gear (10) is provided with a rack (11), the rack (11) is connected to a second cylinder (19) through a cylinder joint (15), and the second cylinder (19) is converted into the rotational power of the cock D (6) through the gear (10) and the rack (11); the pump body (16) is connected to a rotary valve fixing plate (13), and the rotary valve fixing plate (13) is connected to the second cylinder (19); the pump body (16) is fixedly connected with a discharge nozzle joint (18) and a left end cover (17), and the discharge nozzle joint (18) and the left end cover (17) are fixed to the pump body (16) by screws; the piston (1) is linked with the cock D (6), and the cock D (6) rotates following the reciprocating movement of the piston (1); when the second cylinder (19) contracts, the feed port of the pump body (16) is aligned with an inlet of the cock D (6), and at the same time the straight-through metering pump body (4) is aligned with an inlet of the cock D (6), so that the straight-through metering pump body (4) is communicated with the feed port through the cock D (6), and the piston (1) in the straight-through metering pump body (4) completes the suction action driven by the contraction of the first cylinder (20). When the second cylinder (19) extends, the discharge nozzle joint (18) on the pump body (16) is aligned with the other inlet of the cock D (6), and at the same time the straight-through metering pump body (4) is aligned with the other inlet of the cock D (6), so that the straight-through metering pump body (4) is communicated with the discharge nozzle joint (18) through the cock D (6), and the piston (1) in the straight-through metering pump body (4) completes the discharging action driven by the extension of the first cylinder (20).

2. The integral pump for liquids according to claim 1, characterized in that, a sealing ring is used for sealing between the cylinder connecting plate (2) and the first cylinder (20).

3. The integral pump for liquids according to claim 1, characterized in that, the pump body (16) is provided with a piston sealing pressing plate (5), and the piston sealing pressing plate (5) is fixed to the pump body support frame (3).

4. The integral pump for liquids according to claim 1, characterized in that, bearings are arranged at both ends of the gear (10), and the bearings are used for the rotation of the gear (10).

5. The integral pump for liquids according to claim 1, characterized in that, bearing guides are arranged on the rack (11), and the bearing guides are fixed through a small rotating shaft (12) of the pump body (16).

6. The integral pump for liquids according to claim 1, characterized in that, A first sealing ring is arranged outside the rotating shaft A, and a second sealing ring (23) is arranged outside the piston (1).

7. The integral pump for liquid according to claim 1, characterized in that a third sealing ring is arranged on the outer shell of the rotating shaft A, and a fourth sealing ring (29) is arranged between the straight-through metering pump body (4) and the pump body (16).

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