Quick-mounting small-sized plunger pump

Abstract

The utility model discloses a quick -wearing type small -size plunger pump, including the pump body, be equipped with the interface on the pump body, the interface is sleeved with the outer sleeve, be equipped with quick -wearing mechanism between the outer sleeve and the interface, be equipped with pumping mechanism on the pump body, quick -wearing mechanism includes locking frame, two fixed bases and two connecting rods, the opening inside rotation connection of locking frame is equipped with the limit stop, be equipped with return spring between the limit stop and locking frame inner wall, the limit stop bottom fixedly connected with the inclined end, belong to plunger pump technical field. This quick -wearing type small -size plunger pump, through with the outer sleeve and sealing ring are sleeved on the interface, make the ball in arc push piece one side, then drive arc push piece rotation by pushing U -shaped push rod, arc push piece rotation will outer sleeve and interface close together, and U -shaped push rod enters locking frame inside and carries out the limit locking, carries out quick dismounting, compared with flange installation is more quick and convenient, can effectively improve the convenience of installation.

Description

Technical Field

[0001] This utility model relates to the field of plunger pump technology, specifically a quick-installation small plunger pump. Background Technology

[0002] A piston pump is an important component of a hydraulic system. It relies on the reciprocating motion of a piston within a cylinder to change the volume of the sealed working chamber, thereby achieving oil suction and pressure. Piston pumps offer advantages such as high rated pressure, compact structure, high efficiency, and convenient flow adjustment. However, in current technology, the interface of the piston pump is connected to the hydraulic pipeline via a flange. The flange installation requires multiple pairs of bolts and nuts, making disassembly and assembly cumbersome and less than ideal in terms of ease of installation.

[0003] For example, patent publication number CN220667795U, specifically concerning a plunger pump, falls under the field of mechanical technology. It solves the problem of poor sealing in existing plunger pumps. This plunger pump includes a pump body with an inlet and an outlet. A plunger that can move into the pump body is inserted within the pump body. A return spring is also provided within the pump body to allow the plunger to move outward and reset. A rod-shaped limiting rod is provided within the pump body, with its inner end abutting against the inner wall of the pump body. The inner end of the plunger extends into the pump body and is fitted onto the outer side of the limiting rod. A cup is also provided on the inner wall of the pump body, closer to the inner end of the limiting rod than the inlet. When the plunger moves inward, its outer surface abuts against the cup for sealing. This plunger pump has the advantage of good sealing performance. However, it suffers from the problem that the interface on this plunger pump is connected to the hydraulic pipeline via a flange. The flange installation requires multiple pairs of bolts and nuts, making disassembly and assembly cumbersome and resulting in less than ideal installation convenience. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quick-installation small plunger pump, which solves the problem that the interface on the plunger pump is connected to the hydraulic pipeline via a flange, and the flange fixing installation requires multiple pairs of bolts and nuts, making disassembly and assembly cumbersome and resulting in less than ideal installation convenience.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a quick-installation small plunger pump, including a pump body, an interface on the pump body, an outer sleeve on the interface, a quick-installation mechanism between the outer sleeve and the interface, and a pumping mechanism on the pump body;

[0006] The quick-release mechanism includes a locking frame, two fixed seats, and two connecting rods. A limit block is rotatably connected inside the opening of the locking frame. A return spring is provided between the limit block and the inner wall of the locking frame. An inclined end is fixedly connected to the bottom of the limit block. A connecting seat is rotatably connected inside each of the two fixed seats. An arc-shaped push block is fixedly connected to the end of each of the two connecting seats. The inner surface of the arc-shaped push block is provided with a thickened arc surface. A U-shaped push rod is fixedly connected between the two connecting seats. Limit grooves are provided on each of the two fixed seats. A retaining ball is fixedly connected to the end of each of the two connecting rods.

[0007] Preferably, the locking frame is fixedly installed on the pump body and is located at the top of the interface, so that the locking frame can remain stable and thus lock the U-shaped push rod.

[0008] Preferably, the top end of the limiting block is rotatably connected to the inner wall of the locking frame, the bottom end of the limiting block is set as a free end, and the limiting block abuts against the inner wall of the locking frame through the inclined end to prevent the limiting block from falling out of the locking frame, thereby playing a limiting role.

[0009] Preferably, the two fixing seats are fixedly installed on the pump body, and the two fixing seats are symmetrically arranged on both sides of the interface.

[0010] Preferably, the two connecting rods are fixedly connected to the outer casing, and the two connecting rods are symmetrically arranged on both sides of the outer casing.

[0011] Preferably, the two ends of the U-shaped push rod pass through the limiting groove and are fixedly connected to the connecting seat. The U-shaped push rod matches the locking frame, so that the U-shaped push rod can enter and exit the locking frame.

[0012] Preferably, the pumping mechanism includes a drive motor, a crankshaft is fixedly connected to the output shaft end of the drive motor, a piston is provided on one side of the crankshaft, a rocker arm is installed between the piston and the crankshaft, a screw is fixedly connected to the end of the piston, a plunger is sleeved on the screw, and a fixing nut is threaded on the screw, so that the plunger can be easily replaced.

[0013] This utility model provides a quick-installation miniature plunger pump. Compared with the prior art, it has the following advantages:

[0014] Beneficial effects:

[0015] 1. This quick-installation miniature plunger pump, by fitting the outer sleeve and sealing ring onto the interface, positions the ball catcher on one side of the arc-shaped push block. Then, pushing the U-shaped push rod drives the arc-shaped push block to rotate. The rotation of the arc-shaped push block tightly presses the outer sleeve against the interface. The U-shaped push rod enters the locking frame for limit locking, allowing for quick assembly and disassembly. Compared to flange installation, this is faster and more convenient, thus effectively improving the ease of installation.

[0016] 2. This quick-installation miniature plunger pump uses a drive motor to rotate the crankshaft. The crankshaft rotation drives the rocker arm to rock, which in turn moves the piston rod. The piston rod's movement causes the plunger to reciprocate, pumping hydraulic oil. The plunger is then fitted onto a screw and secured with a fixing nut, making it easy to replace the plunger. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the quick-assembly mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the fixing base structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the pumping mechanism of this utility model.

[0021] In the diagram: 1. Pump body; 2. Quick-release mechanism; 201. Locking frame; 202. Fixed seat; 203. Connecting rod; 204. Limiting block; 205. Return spring; 206. Inclined end; 207. Connecting seat; 208. Arc-shaped push block; 209. Thickened arc surface; 210. U-shaped push rod; 211. Ball catcher; 212. Limiting groove; 3. Interface; 4. Pumping mechanism; 401. Drive motor; 402. Crankshaft; 403. Piston column; 404. Rocker arm; 405. Screw; 406. Plunger; 407. Fixing nut; 5. Outer sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 This utility model provides a technical solution: a quick-installation small plunger pump, including a pump body 1, an interface 3 on the pump body 1, an outer sleeve 5 fitted onto the interface 3, and a sealing ring between the interface 3 and the outer sleeve 5 during installation to increase the sealing performance. A quick-installation mechanism 2 is provided between the outer sleeve 5 and the interface 3, and a pumping mechanism 4 is provided on the pump body 1. The outer sleeve 5 and the interface 3 can be quickly disassembled and assembled through the quick-installation mechanism 2, which is faster and more convenient than flange installation, thereby effectively improving the ease of installation.

[0024] The quick-release mechanism 2 includes a locking frame 201, two fixed seats 202, and two connecting rods 203. The locking frame 201 is fixedly installed on the pump body 1 and is located on the top of the interface 3, ensuring its stability and locking the U-shaped push rod 210. The two fixed seats 202 are symmetrically arranged on both sides of the interface 3 and are fixedly connected to the outer sleeve 5. The two connecting rods 203 are symmetrically arranged on both sides of the outer sleeve 5. A limiting block 204 is rotatably connected inside the opening of the locking frame 201. The top of the limiting block 204 is rotatably connected to the inner wall of the locking frame 201, and the bottom of the limiting block 204 is a free end. The limiting block 204 abuts against the inner wall of the locking frame 201 through its inclined end 206, preventing the limiting block 204 from dislodging from the locking frame 201, thus providing a limiting function. A reset spring 205 is provided between the two fixed seats 202. An inclined end 206 is fixedly connected to the bottom of the limiting block 204. A connecting seat 207 is rotatably connected inside each of the two fixed seats 202. An arc-shaped push block 208 is fixedly connected to the end of each of the two connecting seats 207. The inner surface of the arc-shaped push block 208 is provided with a thickened arc surface 209. The thickened arc surface 209 is a surface with gradually increasing thickness, so that when the arc-shaped push block 208 rotates, it can use the gradually increasing thickness to push the locking ball 211 to move inward, thereby tightening the outer sleeve 5 and the interface 3 to prevent leakage. A U-shaped push rod 210 is fixedly connected between the two connecting seats 207. The two ends of the U-shaped push rod 210 pass through the limiting groove 212 and are fixedly connected to the connecting seat 207. The U-shaped push rod 210 matches the locking frame 201, so that the U-shaped push rod 210 can enter and exit the locking frame 201. A limiting groove 212 is provided on each of the two fixed seats 202. A locking ball 211 is fixedly connected to the end of each of the two connecting rods 203.

[0025] Please see Figure 1 and Figure 4 The pumping mechanism 4 includes a drive motor 401. A crankshaft 402 is fixedly connected to the output shaft end of the drive motor 401. A piston rod 403 is provided on one side of the crankshaft 402. A rocker arm 404 is installed between the piston rod 403 and the crankshaft 402. A screw rod 405 is fixedly connected to the end of the piston rod 403. A plunger 406 is sleeved on the screw rod 405. A fixing nut 407 is threaded onto the screw rod 405. A washer is placed on the fixing nut 407 when it is screwed onto the screw rod 405 to prevent the fixing nut 407 from loosening. The drive motor 401 drives the crankshaft 402 to rotate. The rotation of the crankshaft 402 drives the rocker arm 404 to rock. The rocker arm 404 drives the piston rod 403 to move. The movement of the piston rod 403 drives the plunger 406 to move back and forth, pumping hydraulic oil. The plunger 406 is then sleeved on the screw rod 405 and fixed with the fixing nut 407, making it easy to replace the plunger 406.

[0026] During operation, the outer sleeve 5 and the sealing ring are placed on the interface 3, so that the ball 211 is on one side of the arc-shaped push block 208. Then, the U-shaped push rod 210 is pushed. The rotation of the U-shaped push rod 210 drives the connecting seat 207 to rotate. The rotation of the connecting seat 207 drives the arc-shaped push block 208 to rotate. The rotation of the arc-shaped push block 208 uses the gradually thickened arc surface 209 to push the ball 211 to move inward. The movement of the ball 211 drives the connecting rod 203 to move. The movement of the connecting rod 203 drives the outer sleeve 5 to move, so that the outer sleeve 5 is close to the interface 3. At this time, the U-shaped push rod 210 pushes the limiting block 204 and enters the locking frame 201. After the U-shaped push rod 210 is fully in, the limiting block 204 is reset under the action of the return spring 205, limiting and locking the U-shaped push rod 210. This allows for quick disassembly and assembly, which is faster and more convenient than flange installation, thus effectively improving the ease of installation.

[0027] When removal is required, push the limiting block 204 inward to open the opening, and then rotate the U-shaped push rod 210 out.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A quick-installation miniature plunger pump, comprising a pump body (1), characterized in that: The pump body (1) is provided with an interface (3), and an outer sleeve (5) is fitted onto the interface (3). A quick-release mechanism (2) is provided between the outer sleeve (5) and the interface (3). The pump body (1) is provided with a pumping mechanism (4). The quick-release mechanism (2) includes a locking frame (201), two fixed seats (202) and two connecting rods (203). A limiting block (204) is rotatably connected inside the opening of the locking frame (201). A return spring (205) is provided between the limiting block (204) and the inner wall of the locking frame (201). An inclined end (206) is fixedly connected to the bottom end of the limiting block (204). A connecting seat (207) is rotatably connected inside each of the two fixed seats (202). An arc-shaped push block (208) is fixedly connected to the end of each of the two connecting seats (207). A thickened arc surface (209) is provided on the inner surface of the arc-shaped push block (208). A U-shaped push rod (210) is fixedly connected between the two connecting seats (207). A limiting groove (212) is opened on each of the two fixed seats (202). A locking ball (211) is fixedly connected to the end of each of the two connecting rods (203).

2. The quick-installation miniature plunger pump according to claim 1, characterized in that: The locking bracket (201) is fixedly installed on the pump body (1), and the locking bracket (201) is located on the top of the interface (3).

3. The quick-installation miniature plunger pump according to claim 1, characterized in that: The top end of the limiting block (204) is rotatably connected to the inner wall of the locking frame (201), the bottom end of the limiting block (204) is set as a free end, and the limiting block (204) abuts against the inner wall of the locking frame (201) through the inclined end (206).

4. The quick-installation miniature plunger pump according to claim 1, characterized in that: The two mounting bases (202) are fixedly installed on the pump body (1), and the two mounting bases (202) are symmetrically arranged on both sides of the interface (3).

5. The quick-installation miniature plunger pump according to claim 1, characterized in that: The two connecting rods (203) are fixedly connected to the outer sleeve (5), and the two connecting rods (203) are symmetrically arranged on both sides of the outer sleeve (5).

6. The quick-installation miniature plunger pump according to claim 1, characterized in that: The two ends of the U-shaped push rod (210) pass through the limiting groove (212) and are fixedly connected to the connecting seat (207). The U-shaped push rod (210) matches the locking frame (201).

7. The quick-installation miniature plunger pump according to claim 1, characterized in that: The pumping mechanism (4) includes a drive motor (401), and a crankshaft (402) is fixedly connected to the output shaft end of the drive motor (401). A piston rod (403) is provided on one side of the crankshaft (402), and a rocker arm (404) is installed between the piston rod (403) and the crankshaft (402).

8. The quick-installation miniature plunger pump according to claim 7, characterized in that: A screw (405) is fixedly connected to the end of the piston rod (403), a plunger (406) is sleeved on the screw (405), and a fixing nut (407) is threaded onto the screw (405).

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