Horizontal piston pump

Abstract

The utility model discloses a horizontal piston pump which comprises a machine frame, a connecting frame, a first cylinder body, a first piston rod, a first piston block, an oil cylinder, a second piston rod, a connecting sleeve, a feeding pipe, a connecting pipe, a feeding one-way valve, a discharging one-way valve and a discharging pipe. A first piston block matched with the first cylinder body is arranged in the first cylinder body, and the first piston block is connected with a first piston rod; the first cylinder body is connected with the two connecting pipes, and the connecting pipes are connected with the feeding pipe and the discharging pipe through the feeding one-way valve and the discharging one-way valve respectively, so that when the first piston block moves, a medium is pumped into the first cylinder body all the time, and meanwhile, the medium is pumped out of the first cylinder body all the time; according to the device, a medium is pumped out all the time in the operation process, the stability and continuity of medium output are guaranteed, meanwhile, the medium pumping-out speed is increased, and the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pump, in particular to the technical field of piston pump. BACKGROUND

[0002] Piston pump is a commonly used reciprocating pump, which is divided into single cylinder and multi-cylinder from structure, and has the characteristics of high lift; it is suitable for conveying oil emulsion without solid particles at normal temperature; it is used for oil field, coal seam water injection, oil injection, oil extraction; it is used as the power pump of chamber pressure machine and water pressure machine, hydraulic sand cleaning, and ammonia liquid conveying in fertilizer plant.

[0003] The existing patent CN204458317U discloses a horizontal single-cylinder single-acting reciprocating piston pump, which can effectively transport medium, but the reciprocation can only transport medium once, which leads to discontinuous medium output, uneven medium output and slow medium pumping speed. SUMMARY

[0004] The utility model discloses a horizontal piston pump, which can output medium twice in one reciprocation, ensure the stability and continuity of medium output, and improve the speed of medium pumping.

[0005] To achieve the above object, the utility model provides a horizontal piston pump, which comprises a rack, a connecting frame, a first cylinder body, a first piston rod, a first piston block, an oil cylinder, a second piston rod, a connecting sleeve, a feeding pipe, a connecting pipe, a feeding check valve, a discharging check valve and a discharging pipe, the connecting frame and the first cylinder body are fixed on the rack, the first cylinder body and the oil cylinder are fixed with the connecting frame, the first cylinder body is internally provided with a first piston block matched with the first cylinder body, the first piston block is connected with a first piston rod, the first piston rod is connected with the first cylinder body from one end, the first cylinder body is connected with two connecting pipes, the connecting pipes are connected with the first cylinder body, the connecting positions of the two connecting pipes and the first cylinder body are located on the two sides of the first piston block, the connecting pipes are bifurcated into two branches, the two branches are respectively connected with the feeding check valve and the discharging check valve, the two feeding check valves are connected with the feeding pipe, the two discharging check valves are connected with the discharging pipe, the oil cylinder comprises a second piston rod, and the second piston rod is connected with the first piston rod through a connecting sleeve.

[0006] Preferably, at least one first sealing ring is installed on the side wall of the first piston block.

[0007] Preferably, the feeding check valve only allows medium to flow from the feeding pipe to the connecting pipe, and the discharging check valve only allows medium to flow from the connecting pipe to the discharging pipe.

[0008] As preferred, the first piston block is a ceramic piston block, the first cylinder body comprises a ceramic cylinder wall section, and the first piston block moves in the ceramic cylinder wall section at all times.

[0009] As preferred, the oil cylinder comprises a second cylinder body, a second piston block, a second piston rod and an oil inlet and outlet, the second cylinder body is internally provided with a second piston block matched with the second cylinder body, the second piston block is connected with a second piston rod, the second cylinder body is provided with two oil inlets and outlets, and the two oil inlets and outlets are respectively located at two sides of the second piston block.

[0010] As preferred, the second piston block and the second piston rod are in an integrated structure, the second piston block is located at the middle part of the second piston rod, the two ends of the second piston rod respectively pass through the two ends of the second cylinder body, and one end of the second piston rod is connected with the first piston rod through a connecting sleeve.

[0011] The first piston rod and the second piston rod are connected through the connecting sleeve, so that when the first cylinder body and the second cylinder body leak, the medium cannot enter the other one.

[0012] The features and advantages of the present application will be illustrated in detail through embodiments combined with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the front view of the horizontal piston pump of the present application;

[0014] Figure 2 is the front view of the horizontal piston pump of the present application;

[0015] Figure 3 is the side view of the horizontal piston pump of the present application.

[0016] In the drawings: 1 - frame, 2 - first cylinder body, 3 - connecting pipe, 4 - oil cylinder, 10 - connecting frame, 20 - ceramic cylinder wall section, 21 - first piston block, 22 - first piston rod, 31 - feeding one-way valve, 32 - discharging one-way valve, 33 - feeding pipe, 34 - discharging pipe, 40 - second cylinder body, 41 - second piston block, 42 - second piston rod, 43 - oil inlet and outlet, 45 - connecting sleeve. DETAILED DESCRIPTION

[0017] Reference is made to Figure 1 , Figure 2, Figure 3 The utility model discloses horizontal piston pump, including frame 1, connecting frame 10, first cylinder body 2, first piston rod 22, first piston block 21, oil cylinder 4, second piston rod 42, connecting sleeve 45, feed pipe 33, connecting pipe 3, feed check valve 31, discharge check valve 32, discharge pipe 34, the connecting frame 10 and first cylinder body 2 are fixed on frame 1, and first cylinder body 2 and oil cylinder 4 are fixed with connecting frame 10.

[0018] The first cylinder body 2 is internally provided with a first piston block 21 matched with the first cylinder body 2, the first piston block 21 is connected with a first piston rod 22, and the first piston rod 22 is penetrated from one end of the first cylinder body 2.

[0019] The first cylinder body 2 is connected with two connecting pipes 3, the connecting pipe 3 is connected with the inside of the first cylinder body 2, and the connecting positions of the two connecting pipes 3 and the first cylinder body 2 are located on the two sides of the first piston block 21 respectively, the connecting pipe 3 is bifurcated into two branches at the end, the two branches are respectively connected with the feed check valve 31 and the discharge check valve 32, the two feed check valves 31 are connected with the feed pipe 33, and the two discharge check valves 32 are connected with the discharge pipe 34.

[0020] The oil cylinder 4 comprises a second piston rod 42, the second piston rod 42 is connected with the first piston rod 22 through a connecting sleeve 45, when the oil cylinder 4 or the first cylinder body 2 leaks, the leaked medium does not enter the other side.

[0021] In order to guarantee the sealing property between the first cylinder body 2 and the first piston block 21, at least one first sealing ring is installed on the side wall of the first piston block 21.

[0022] The feed check valve 31 only allows the medium to flow from the feed pipe 33 to the connecting pipe 3, and the discharge check valve 32 only allows the medium to flow from the connecting pipe 3 to the discharge pipe 34.

[0023] Embodiment two:

[0024] In order to avoid that the first cylinder body 2 and the first piston block 21 are corroded and improve the wear resistance of the two, the first piston block 21 is a ceramic piston block, the first cylinder body 2 comprises a ceramic cylinder wall section 20, and the first piston block 21 always moves in the ceramic cylinder wall section 20.

[0025] Embodiment three:

[0026] The oil cylinder 4 is composed of a second cylinder body 40, a second piston block 41, a second piston rod 42 and two oil inlet and outlet ports 43, the second cylinder body 40 is internally provided with the second piston block 41 matched with the second cylinder body 40, the second piston block 41 is connected with the second piston rod 42, and the second cylinder body 40 is provided with the two oil inlet and outlet ports 43, which are respectively located at the two sides of the second piston block 41.

[0027] The second piston block 41 and the second piston rod 42 are in an integrated structure, the second piston block 41 is located at the middle part of the second piston rod 42, the two ends of the second piston rod 42 respectively pass through the two ends of the second cylinder body 40, and one end of the second piston rod 42 is connected with the first piston rod 22 through a connecting sleeve 45.

[0028] The working process of the utility model is as follows:

[0029] During the working process of the horizontal piston pump, when the second piston rod 42 on the oil cylinder 4 reciprocates, the first piston rod 22 connected with the second piston rod 42 reciprocates, the first piston block 21 connected with the first piston rod 22 and located in the first cylinder body 2 reciprocates, when the first piston block 21 moves to the left, the medium in the feeding pipe 33 enters the right side in the first cylinder body 2 through the right feeding check valve 31 and the right connecting pipe 3, and the medium in the left side in the second cylinder body 2 enters the discharge pipe 34 through the left connecting pipe 3 and the left discharge check valve 32; when the second piston block 21 moves to the right, the medium in the feeding pipe 33 enters the left side in the first cylinder body 2 through the left feeding check valve 31 and the left connecting pipe 3, and the medium in the right side in the second cylinder body 2 enters the discharge pipe 34 through the right connecting pipe 3 and the right discharge check valve 32.

[0030] During the working process of the device, the medium is always pumped into the first cylinder body 2 and the medium is always pumped out of the first cylinder body 2, so that the device continuously and uniformly pumps out the medium, and the medium pumping speed is improved.

[0031] The above embodiment is a description of the utility model, not a limitation of the utility model, and any simple transformation of the utility model belongs to the protection range of the utility model.

Claims

1. A horizontal piston pump characterized in that: The utility model provides a kind of hydraulic cylinder, including rack (1), connecting frame (10), first cylinder body (2), first piston rod (22), first piston block (21), oil cylinder (4), second piston rod (42), connecting sleeve (45), feed pipe (33), connecting pipe (3), feed check valve (31), discharge check valve (32), discharge pipe (34), the connecting frame (10) and first cylinder body (2) are fixed on the rack (1), first cylinder body (2) and oil cylinder (4) are fixed with connecting frame (10), the first cylinder body (2) is equipped with a first piston block (21) with first cylinder body (2) cooperation in it, first piston block (21) is connected with a first piston rod (22), first piston rod (22) is from the one end of first cylinder body (2) and is worn, the first cylinder body (2) is connected with two connecting pipes (3), connecting pipe (3) is connected with first cylinder body (2) inside, two connecting pipes (3) are respectively located at the two sides of first piston block (21) with the connection of first cylinder body (2), connecting pipe (3) end bifurcates into two branches, two branches are respectively connected with feed check valve (31), discharge check valve (32), two feed check valves (31) are connected with feed pipe (33), two discharge check valves (32) are connected with discharge pipe (34), the oil cylinder (4) includes a second piston rod (42), and the second piston rod (42) is connected with the first piston rod (22) by a connecting sleeve (45).

2. The horizontal piston pump of claim 1, wherein: At least one first sealing ring is installed on the side wall of the first piston block (21).

3. The horizontal piston pump of claim 1, wherein: The feed check valve (31) only allows medium to flow from the feed pipe (33) to the connecting pipe (3), and the discharge check valve (32) only allows medium to flow from the connecting pipe (3) to the discharge pipe (34).

4. The horizontal piston pump of claim 1, wherein: The first piston block (21) is a ceramic piston block, the first cylinder body (2) includes a ceramic cylinder wall section (20), and the first piston block (21) always moves in the ceramic cylinder wall section (20).

5. The horizontal piston pump of claim 1, wherein: The oil cylinder (4) is composed of a second cylinder body (40), a second piston block (41), a second piston rod (42) and oil inlet and outlet ports (43), the second cylinder body (40) is equipped with a second piston block (41) matched with the second cylinder body (40) inside, the second piston block (41) is connected with a second piston rod (42), and the second cylinder body (40) is provided with two oil inlet and outlet ports (43) on the second cylinder body (40), and the two oil inlet and outlet ports (43) are respectively located at the two sides of the second piston block (41).

6. The horizontal piston pump of claim 5, wherein: The second piston block (41) and the second piston rod (42) are of an integrated structure, the second piston block (41) is located in the middle of the second piston rod (42), the second piston rod (42) is respectively from the two ends of the second cylinder body (40), and one end of the second piston rod (42) is connected with the first piston rod (22) through a connecting sleeve (45).

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