Filling device of plunger pump driven by connecting rod

Abstract

The filling device comprises the plunger pump, a driving device and push rods, the bottom of the plunger pump is connected with the tops of the push rods through connecting sleeves and locking sleeves, a plurality of push rods penetrate through an integral push rod seat, the bottoms of the push rods are connected with the driving device, the upper end of the plunger pump is mounted on a plunger mounting plate, and the lower end of the plunger pump is mounted on the plunger mounting plate. A connecting groove is formed in the side face of the connecting sleeve, the locking sleeve is matched with the locking groove of the connecting sleeve, the locking sleeve is connected with the connecting sleeve through a plurality of bolts, a guide device of the push rod is changed, meanwhile, the connecting structure of the plunger and the push rod is changed, cleaning is convenient, and sanitary dead corners are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filling equipment, in particular to a filling device of a connecting rod-driven injection piston pump. Background Art

[0002] During filling, the plunger pump plays an important role. The plunger reciprocates in the cylinder. When the plunger is pulled outward (intake stroke), negative pressure is formed in the cylinder, the intake valve opens, and the liquid enters the cylinder under the action of atmospheric pressure. When the plunger is pushed back inward (discharge stroke), the pressure in the cylinder increases, the intake valve closes, the discharge valve opens, and the liquid is squeezed out. The diameter and stroke of the plunger are fixed. By precisely controlling the number of reciprocating movements or the speed of movement of the plunger, accurate measurement of the liquid flow rate can be achieved. The bottom of the plunger of the plunger pump is connected to the push rod, which needs to pass through the guide column to ensure that the push rod is lifted vertically. The current connection between the plunger and the push rod cannot be adjusted, resulting in many sanitary blind spots. In addition, a drive device needs to be installed at the bottom of the push rod, and traditional drive devices take up a large floor space. Utility Model Content

[0003] The purpose of the present invention is to solve the problems raised in the above-mentioned background technology. The present invention provides a filling device of a connecting rod driven injection pump, changes the guide device of the push rod, and at the same time changes the connection structure between the plunger and the push rod, which is convenient for cleaning and reduces sanitary dead corners.

[0004] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0005] A filling device for a connecting rod-driven injection piston pump includes a plunger pump, a driving device and a push rod. The bottom of the plunger pump is connected to the top of the push rod by a connecting sleeve and a locking sleeve. Multiple push rods pass through the integral push rod seat. The bottom of the push rod is connected to the driving device. The upper end of the plunger pump is installed on the plunger mounting plate. A connecting groove is provided on the side of the connecting sleeve. The locking sleeve matches the locking groove of the connecting sleeve. The locking sleeve and the connecting sleeve are connected by several bolts.

[0006] Furthermore, a plurality of mounting grooves are provided on the upper end of the plunger mounting plate, the upper end of the plunger pump is clamped in the mounting groove, a plunger pump retaining ring is provided on the other side of the upper end of the plunger pump, and the plunger pump retaining ring is connected to the plunger mounting plate by bolts.

[0007] Furthermore, the driving device includes a driving motor, an active rod, a pushing plate, a rotating shaft, an active pushing plate, a following plate and a connecting rod. The output end of the driving motor is connected to the active rod, the active rod is connected to the pushing plate, the pushing plate and the active pushing plate are both fixedly connected to the rotating shaft, the following plate is connected to the rotating shaft through a bearing, the connecting rod is connected to the following plate, a cylinder is installed on the active pushing plate, the active pushing plate is provided with a connecting hole one, the following plate is provided with a connecting hole two corresponding to the connecting hole one, and the connecting rod is connected to the bottom of the push rod.

[0008] Furthermore, the number of active push plates, follower plates, connecting rods, push rods and plunger pumps is equal, and the number of drive motors and active rods is one.

[0009] Furthermore, there are two push plates, the end of the active rod is installed between the upper ends of the two push plates, the lower ends of the two push plates are fixedly installed in the middle of the rotating shaft, and the active push plate and the follower plate are symmetrically arranged on both sides of the two push plates.

[0010] Furthermore, a connecting block is installed at the output end of the cylinder. When the active push plate and the follower plate are connected, the connecting block is located at the connecting hole 1 and the connecting hole 2.

[0011] Beneficial effects:

[0012] The multiple push rods of the utility model pass through an integral push rod seat, which greatly reduces sanitary dead corners and facilitates cleaning compared to the existing situation where each push rod passes through a cylindrical guide column; the utility model improves the connection structure between the plunger and the push rod, and is locked and connected by a locking sleeve and a connecting sleeve, and does not require a hole to be opened on the plunger pump for connection, which reduces sanitary dead corners and facilitates cleaning; the utility model improves the arrangement of the cylinder, and can achieve clutching by arranging an active push plate and a follower plate. At the same time, the cylinder is placed longitudinally, and the distance between two adjacent active push plates can be less than half of the traditional distance, and the layout is more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a front view of an embodiment of the utility model;

[0015] Figure 2 This is a left side view of an embodiment of the utility model;

[0016] Figure 3 This is a partial schematic diagram of an embodiment of the present utility model;

[0017] Figure 4 This is a partial schematic diagram of an embodiment of the present utility model;

[0018] Figure 5 This is a partial schematic diagram of an embodiment of the present utility model;

[0019] Figure 6 This is a partial cross-sectional view of an embodiment of the present utility model;

[0020] Figure 7 This is a partial cross-sectional view of an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0022] As shown in the figure, the utility model discloses a filling device for a connecting rod driven injection pump, comprising a plunger pump 1, a driving device 2 and a push rod 3. The bottom of the plunger pump 1 is connected to the top of the push rod 3 through a connecting sleeve 4 and a locking sleeve 5. A plurality of push rods 3 pass through an integral push rod seat 6. The bottom of the push rod 3 is connected to the driving device 2. The upper end of the plunger pump 1 is mounted on a plunger mounting plate 7. A connecting groove is provided on the side of the connecting sleeve 4. The locking sleeve 5 matches the locking groove of the connecting sleeve 4. The locking sleeve 5 is connected to the connecting sleeve 4 through a plurality of bolts. The locking sleeve 5 and the connecting sleeve 4 are disassembled by bolts for easy cleaning. Traditional plunger pumps are made of ceramic, and it is inconvenient to disassemble and clean them using bolts.

[0023] A groove may also be designed on the upper end of the connecting sleeve 4 to facilitate separation of the connecting sleeve 4 and the plunger pump 1 .

[0024] In one embodiment of the present invention, the upper end of the plunger mounting plate 7 is provided with a plurality of mounting grooves 71. The upper end of the plunger pump 1 is secured to the mounting grooves 71. A plunger pump retaining ring 8 is provided on the other side of the upper end of the plunger pump 1. The plunger pump retaining ring 8 is bolted to the plunger mounting plate 7. The plunger mounting plate 7 is used to secure the top of the plunger pump 1. The design of the plunger pump retaining ring 8 facilitates removal.

[0025] In one embodiment of the present invention, the drive device 2 includes a drive motor 9, an active rod 10, a push plate 11, a rotating shaft 12, an active push plate 13, a follower plate 14, and a connecting rod 15. The output end of the drive motor 9 is connected to the active rod 10, which is connected to the push plate 11. The push plate 11 and the active push plate 13 are both fixedly connected to the rotating shaft 12. The follower plate 14 is connected to the rotating shaft 12 via a bearing 16. The connecting rod 15 is connected to the follower plate 14. A cylinder 17 is mounted on the active push plate 13. The active push plate 13 is provided with a first connecting hole. The follower plate 14 is provided with a second connecting hole corresponding to the first connecting hole. The connecting rod 15 is connected to the bottom of the push rod 3. When the drive motor 9 is in operation, it drives the active rod 10 to move, which in turn drives the push plate 11 to move. The push plate 11 drives the rotating shaft 12 to rotate, and the active shaft 12 drives the active push plate 13 to rotate. If filling is not required, the follower plate 14 and the active push plate are in a clutch state, and the follower plate 14 does not move. When filling is required, the cylinder 17 works, and the cylinder connects the active push plate 13 and the follower plate 14. The active push plate 13 drives the follower plate 14 to rotate, and the follower plate 14 drives the connecting rod 15 to move. The connecting rod 15 drives the push rod 3 to rise and fall, and the push rod 3 drives the plunger pump 1 to work.

[0026] In one embodiment of the present invention, the number of active push plates 13 , follower plates 14 , connecting rods 15 , push rods 3 and plunger pumps 1 is equal, and the number of drive motors 9 and active rods 10 is one.

[0027] In one embodiment of the present invention, two push plates 11 are provided. The end of the active rod 10 is mounted between the upper ends of the two push plates 11. The lower ends of the two push plates 11 are fixedly mounted in the middle of the rotating shaft 12. The active push plate 13 and the follower plate 14 are symmetrically arranged on both sides of the two push plates 11. The above position design allows the active push plate 13 and the follower plate 14 to work symmetrically.

[0028] In one embodiment of the present invention, a connecting block 18 is mounted on the output end of the cylinder 17. When the active push plate 13 and the follower plate 14 are connected, the connecting block 18 is located at the connection holes 1 and 2. The connecting block 18 engages the connection holes 1 and 2 of the active push plate 13 and the follower plate 14, thereby driving the follower plate 14 to rotate.

[0029] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A filling device for a connecting rod driven plunger pump, comprising a plunger pump, a driving device and a push rod, characterized in that: The bottom of the plunger pump is connected to the top of the push rod through a connecting sleeve and a locking sleeve. Multiple push rods pass through the integral push rod seat. The bottom of the push rod is connected to the driving device. The upper end of the plunger pump is installed on the plunger mounting plate. A connecting groove is provided on the side of the connecting sleeve. The locking sleeve matches the locking groove of the connecting sleeve. The locking sleeve and the connecting sleeve are connected by several bolts.

2. A filling device for a connecting rod driven plunger pump according to claim 1, characterized in that: The upper end of the plunger mounting plate is provided with multiple mounting grooves, the upper end of the plunger pump is clamped in the mounting groove, and a plunger pump clamping ring is provided on the other side of the upper end of the plunger pump. The plunger pump clamping ring is connected to the plunger mounting plate by bolts.

3. The filling device of the connecting rod driven plunger pump according to claim 1, characterized in that: The driving device includes a driving motor, an active rod, a pushing plate, a rotating shaft, an active pushing plate, a following plate and a connecting rod. The output end of the driving motor is connected to the active rod, the active rod is connected to the pushing plate, the pushing plate and the active pushing plate are both fixedly connected to the rotating shaft, the following plate is connected to the rotating shaft through a bearing, the connecting rod is connected to the following plate, a cylinder is installed on the active pushing plate, the active pushing plate is provided with a connecting hole 1, the following plate is provided with a connecting hole 2 corresponding to the connecting hole 1, and the connecting rod is connected to the bottom of the push rod.

4. The filling device of the connecting rod driven plunger pump according to claim 1, characterized in that: The number of active push plates, follower plates, connecting rods, push rods and plunger pumps is equal, and the number of drive motors and active rods is one.

5. The filling device of the connecting rod driven plunger pump according to claim 1, characterized in that: There are two push plates, the end of the active rod is installed between the upper ends of the two push plates, the lower ends of the two push plates are fixedly installed in the middle of the rotating shaft, and the active push plate and the follower plate are symmetrically arranged on both sides of the two push plates.

6. The filling device of the connecting rod driven plunger pump according to claim 3, characterized in that: The output end of the cylinder is equipped with a connecting block. When the active push plate and the follower plate are connected, the connecting block is located at the connecting hole 1 and the connecting hole 2.

Images