A reciprocating pump capable of automatically adjusting stroke

Abstract

The present invention relates to the technical field of reciprocating pumps, and specifically to a reciprocating pump with automatically adjustable stroke, comprising: a pump body, a discharge port and a feed port being arranged on the surface of the pump body; a rotating rod, an extension ring being fixed on the surface of the rotating rod, a supporting rod being fixed on the surface of the extension ring, a supporting plate being fixed on the end of the supporting rod, a fixing rod being fixed on the surface of the extension ring, the end of the fixing rod being connected to a clamping slot, and a curved plate being fixed on the surface of the clamping slot; and a first slide groove and a second slide groove being arranged on the surface of the pump body; the beneficial effect is as follows: the supporting ring proposed in the present invention pushes the force-bearing plate, so that the supporting plate at the end of the supporting rod is supported on the surface of the clamping rod, stabilizing the clamping rod, and driving the piston rod to reciprocate through the clamping slot and the curved plate, and the end of the rotating rod is connected to the motor, the motor moves with the rotating rod, the supporting plate at the bottom of the motor is inserted into the second slide groove, the rotating rod and the extension ring are driven to rotate by the motor, and the clamping rod can be replaced and clamped in different clamping slots.

Description

Technical Field

[0001] The invention relates to the technical field of reciprocating pumps, in particular to a reciprocating pump capable of automatically adjusting its stroke. Background Art

[0002] A conventional reciprocating pump has a power end and a hydraulic end connected to each other in a housing. Under the driving force, the power end drives the hydraulic end to reciprocate and perform work, thereby continuously transporting the liquid.

[0003] In the prior art, the power assembly described in patent CN210239921U includes a reciprocating rod; a hydraulic assembly, the hydraulic assembly includes a cylinder and a reciprocating plug, the reciprocating plug is partially inserted into the cylinder, one end of the reciprocating plug extending from the cylinder is detachably connected to the reciprocating rod, the cylinder is provided with a liquid inlet valve and a liquid outlet valve; a mounting seat, the mounting seat is provided with a liquid inlet channel and a liquid outlet channel, and is also provided with a mounting hole, the cylinder is detachably connected to the mounting seat through the mounting hole, the liquid inlet valve is connected to the liquid inlet channel, and the liquid outlet valve is connected to the liquid outlet channel. The technical solution of the utility model makes it easy to replace the hydraulic end of the reciprocating pump, and the maintenance is simple;

[0004] However, the stroke of the existing reciprocating pump is fixed. When adjusting the stroke of the reciprocating pump, the structure that pushes the reciprocating pump needs to be disassembled, and the pushing components of different strokes need to be replaced after disassembly, resulting in low efficiency in adjusting the reciprocating pump. Summary of the invention

[0005] The object of the present invention is to provide a reciprocating pump capable of automatically adjusting the stroke, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a reciprocating pump capable of automatically adjusting the stroke, comprising:

[0007] A pump body, the surface of which is provided with a discharge port and a feed port;

[0008] A rotating rod, an extension ring is fixed on the surface of the rotating rod, a supporting rod is fixed on the surface of the extension ring, a supporting plate is fixed on the end of the supporting rod, a fixing rod is fixed on the surface of the extension ring, the end of the fixing rod is connected to a slot, an arc plate is fixed on the surface of the slot; and a first slide groove and a second slide groove are arranged on the surface of the pump body.

[0009] Preferably, the interior of the discharge port and the feed port are connected to the interior of the pump body, and switch components are provided inside the discharge port and the feed port. A piston is provided inside the pump body, and the piston can move inside the pump body. A piston rod is fixed to the surface of the piston, and the piston moves with the piston rod.

[0010] Preferably, a first slide groove and a second slide groove are provided on the surface of the pump body, a support plate is inserted in the second slide groove, the support plate can move in the second slide groove, a motor is fixed to the surface of the support plate, the support plate moves with the motor, the motor is connected to a rotating rod, the rotating rod is located in the second slide groove, and the rotating rod can move in the second slide groove.

[0011] Preferably, the rotating rod can rotate, the motor drives the rotating rod to rotate, the extension ring rotates along with the rotating rod, a U-shaped rod is fixed to the end of the piston rod, a clamping rod is fixed to the end of the U-shaped rod, and the clamping rod is clamped in the clamping groove.

[0012] Preferably, the slots are provided in multiple groups, each group of slots has a different distance from the rotating rod, an arc plate is fixed at the end of the slot, the arc plate is connected between the two groups of slots, a fixing rod is fixed between the slot and the extension ring, and the fixing rod moves and rotates with the rotating rod.

[0013] Preferably, a connecting rod is fixed on the surface of the rotating rod, and the other end of the connecting rod is connected to a cylinder. The cylinder drives the connecting rod to move telescopically, and the rotating rod moves along with the connecting rod.

[0014] Preferably, a cylindrical groove is opened inside the rotating rod, a screw is threaded inside the rotating rod, both ends of the screw are threaded inside the rotating rod, a top holding ring is fixed on the surface of the screw, the top holding ring is located in the cylindrical groove, and the top holding ring rotates and moves with the screw.

[0015] Preferably, the supporting ring can move in the cylindrical groove, a supporting rod is inserted into the surface of the rotating rod, a supporting plate is fixed to the end of the supporting rod, the supporting plate moves with the supporting rod, and the supporting plate can be supported on the surface of the clamping rod.

[0016] Preferably, a force plate is fixed to one end of the supporting rod in the cylindrical groove, and the force plate is located in the cylindrical groove, and the supporting ring can be supported on the surface of the force plate when the screw moves, so that the force plate moves, and the supporting rod moves with the force plate.

[0017] Preferably, the cylinder drives the connecting rod to move, the connecting rod drives the rotating rod to move, the rotating rod drives the slot to move, and the slot drives the piston rod to move.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The supporting plate at the bottom of the motor is inserted into the second sliding groove, and the rotating rod and the extension ring are driven to rotate by the motor. The connecting rod is replaced and clamped in different clamping grooves to realize the change of the reciprocating distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention.

[0021] Figure 2 It is a schematic structural diagram of another viewing angle of the cross section of the present invention.

[0022] Figure 3 It is a schematic diagram of a partially enlarged cross-section structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the card slot structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the cross-sectional structure of the rotating rod of the present invention.

[0025] Figure 6 for Figure 5 A schematic diagram of the enlarged structure in the middle.

[0026] In the figure: pump body 1, discharge port 2, feed port 3, piston 4, piston rod 5, connecting rod 6, first slide groove 7, motor 8, support plate 9, second slide groove 10, screw 11, rotating rod 12, clamping groove 13, arc plate 14, top holding plate 15, fixed rod 16, extension ring 17, top holding rod 18, cylindrical groove 19, force plate 20, top holding ring 22, U-shaped rod 23, clamping rod 24. DETAILED DESCRIPTION

[0027] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 6 , the present invention provides a technical solution:

[0029] Embodiment 1: A reciprocating pump with automatically adjustable stroke comprises: a pump body 1, a discharge port 2 and a feed port 3 are arranged on the surface of the pump body 1; a rotating rod 12, an extension ring 17 is fixed on the surface of the rotating rod 12, a supporting rod 18 is fixed on the surface of the extension ring 17, a supporting plate 15 is fixed on the end of the supporting rod 18, a fixing rod 16 is fixed on the surface of the extension ring 17, the end of the fixing rod 16 is connected to the slot 13, an arc plate 14 is fixed on the surface of the slot 13; and a first slide groove 7 and a second slide groove 10 are arranged on the surface of the pump body 1, a motor 8 moves with the rotating rod 12, a support plate 9 at the bottom of the motor 8 is inserted in the second slide groove 10, and the rotating rod 12 and the extension ring 17 are driven to rotate by the motor 8.

[0030] Example 2: On the basis of Example 1, the interior of the discharge port 2 and the feed port 3 are connected to the interior of the pump body 1, and switch components are provided inside the discharge port 2 and the feed port 3. A piston 4 is provided inside the pump body 1, and the piston 4 can move inside the pump body 1. A piston rod 5 is fixed to the surface of the piston 4. The piston 4 moves with the piston rod 5, and the piston 4 moves in the opposite direction, so that the liquid inside the pump body 1 is squeezed from the pump body 1 into the discharge port 2, realizing reciprocating.

[0031] A first slide groove 7 and a second slide groove 10 are provided on the surface of the pump body 1, and a support plate 9 is inserted in the second slide groove 10, and the support plate 9 can move in the second slide groove 10. A motor 8 is fixed to the surface of the support plate 9, and the support plate 9 moves with the motor 8. The motor 8 is connected to a rotating rod 12, and the rotating rod 12 is located in the second slide groove 10. The rotating rod 12 can move in the second slide groove 10. The support plate 9 at the bottom of the motor 8 is inserted in the second slide groove 10, and the rotating rod 12 and the extension ring 17 are driven to rotate by the motor 8. The clamping rod 24 is replaced and clamped in different clamping grooves 13 to achieve a change in the reciprocating distance.

[0032] The rotating rod 12 can rotate, the motor 8 drives the rotating rod 12 to rotate, the extension ring 17 rotates with the rotating rod 12, a U-shaped rod 23 is fixed to the end of the piston rod 5, a clamping rod 24 is fixed to the end of the U-shaped rod 23, the clamping rod 24 is clamped in the clamping groove 13, the clamping groove 13 is provided with multiple groups, and the distance from each group of clamping grooves 13 to the rotating rod 12 is different, an arc plate 14 is fixed to the end of the clamping groove 13, the arc plate 14 is connected between the two groups of clamping grooves 13, a fixing rod 16 is fixed between the clamping groove 13 and the extension ring 17, the fixing rod 16 moves and rotates with the rotating rod 12, a connecting rod 6 is fixed to the surface of the rotating rod 12, and the other end of the connecting rod 6 is connected to the cylinder The cylinder drives the connecting rod 6 to telescopically move, and the rotating rod 12 moves with the connecting rod 6. A cylindrical groove 19 is opened inside the rotating rod 12, and a screw rod 11 is screwed inside the rotating rod 12. Both ends of the screw rod 11 are screwed inside the rotating rod 12. A top holding ring 22 is fixed on the surface of the screw rod 11. The top holding ring 22 is located in the cylindrical groove 19, and the top holding ring 22 rotates and moves with the screw rod 11. The top holding ring 22 can move in the cylindrical groove 19. A top holding rod 18 is inserted on the surface of the rotating rod 12, and a top holding plate 15 is fixed at the end of the top holding rod 18. The top holding plate 15 moves with the top holding rod 18, and the top holding plate 15 can be held on the surface of the clamping rod 24.

[0033] A force plate 20 is fixed to one end of the supporting rod 18 located in the cylindrical groove 19, and the force plate 20 is located in the cylindrical groove 19, and a supporting ring 22. As the screw rod 11 moves, it can be supported on the surface of the force plate 20, so that the force plate 20 moves, and the supporting rod 18 moves with the force plate 20, the cylinder drives the connecting rod 6 to move, the connecting rod 6 drives the rotating rod 12 to move, the rotating rod 12 drives the slot 13 to move, and the slot 13 drives the piston rod 5 to move, and a U-shaped rod 23 and a clamping rod 24 are fixed on the surface of the piston rod 5, and the clamping rod 24 is located inside the slot 13, and the rotating rod 12 is connected to the cylinder through the connecting rod 6, and the rotating rod 12 can be driven to reciprocate through the cylinder.

[0034] When the discharge port 2 is closed and the piston 4 moves, the negative pressure inside the pump body 1 causes the liquid to be sucked from the feed port 3. When the feed port 3 is closed and the discharge port 2 is opened, the piston 4 moves in the opposite direction, causing the liquid inside the pump body 1 to be squeezed from the pump body 1 into the discharge port 2, achieving reciprocation. A U-shaped rod 23 and a clamping rod 24 are fixed on the surface of the piston rod 5. The clamping rod 24 is located inside the card groove 13. The rotating rod 12 is connected to the cylinder through the connecting rod 6. The rotating rod 12 can be driven to reciprocate through the cylinder, and the screw 11 is screwed so that the screw 11 drives the top holding ring 2 2 is moved, the supporting ring 22 pushes the force-bearing plate 20, so that the supporting plate 15 at the end of the supporting rod 18 is supported on the surface of the clamping rod 24, the clamping rod 24 is stabilized, and the piston rod 5 is driven to reciprocate through the clamping groove 13 and the arc plate 14, and the end of the rotating rod 12 is connected to the motor 8, the motor 8 moves with the rotating rod 12, and the support plate 9 at the bottom of the motor 8 is inserted into the second slide groove 10, the rotating rod 12 and the extension ring 17 are driven to rotate by the motor 8, and the clamping rod 24 is replaced to be clamped in different clamping grooves 13 to achieve the change of the reciprocating distance.

[0035] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A reciprocating pump capable of automatically adjusting stroke, characterized in that: include: A pump body, with a discharge port and a feed port provided on the surface of the pump body; A rotating rod, an extension ring is fixed on the surface of the rotating rod, a supporting rod is fixed on the surface of the extension ring, a supporting plate is fixed on the end of the supporting rod, a fixing rod is fixed on the surface of the extension ring, the end of the fixing rod is connected to the slot, and an arc plate is fixed on the surface of the slot; and a first slide groove and a second slide groove are arranged on the surface of the pump body; The surface of the pump body is provided with a first slide groove and a second slide groove, a support plate is inserted in the second slide groove, the support plate can move in the second slide groove, a motor is fixed on the surface of the support plate, the support plate moves with the motor, the motor is connected to a rotating rod, the rotating rod is located in the second slide groove, and the rotating rod can move in the second slide groove; The motor drives the rotating rod to rotate, and the extension ring rotates along with the rotating rod. A U-shaped rod is fixed to the end of the piston rod, and a clamping rod is fixed to the end of the U-shaped rod, and the clamping rod is clamped in the clamping groove; There are multiple groups of card slots, and the distance from each group of card slots to the rotating rod is different; an arc plate is fixed at the end of the card slot, and the arc plate is connected between the two groups of card slots; A cylindrical groove is provided inside the rotating rod, a screw rod is screwed inside the rotating rod, two ends of the screw rod are screwed inside the rotating rod, a top holding ring is fixed on the surface of the screw rod, the top holding ring is located in the cylindrical groove, and the top holding ring rotates and moves with the screw rod; A supporting rod is inserted into the surface of the rotating rod, and a supporting plate is fixed to the end of the supporting rod. The supporting plate moves with the supporting rod, and the supporting plate can be supported on the surface of the clamping rod. A force plate is fixed to one end of the supporting rod in the cylindrical groove. The force plate is located in the cylindrical groove, and the supporting ring can support the surface of the force plate as the screw moves, so that the force plate moves, and the supporting rod moves with the force plate. The rotating rod and the extension ring are driven to rotate by a motor, and the clamping rod is replaced and clamped in different clamping slots to achieve the change of the reciprocating distance.

2. A reciprocating pump with automatically adjustable stroke according to claim 1, characterized in that: The inside of the discharge port and the feed port are connected to the inside of the pump body. Switch components are arranged inside the discharge port and the feed port. A piston is arranged inside the pump body. The piston can move inside the pump body. A piston rod is fixed on the surface of the piston. The piston moves with the piston rod.

3. A reciprocating pump with automatically adjustable stroke according to claim 2, characterized in that: A connecting rod is fixed on the surface of the rotating rod, and the other end of the connecting rod is connected to a cylinder. The cylinder drives the connecting rod to telescopically move, and the rotating rod moves along with the connecting rod.

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