Movable gear pump

Abstract

The utility model discloses a movable gear pump, which relates to the technical field of gear pumps, has the advantage that universal rollers are convenient to replace, and adopts the technical scheme that the movable gear pump comprises a bottom plate arranged below the gear pump, communication grooves are formed in four corners of the bottom end of the bottom plate, and mounting columns are detachably mounted in the four communication grooves through mounting parts; and universal rolling wheels are mounted at the bottom ends of the four mounting columns through first bolts.

Description

Technical Field

[0001] This utility model relates to the field of gear pump technology, specifically a portable gear pump. Background Technology

[0002] A gear pump is a rotary pump that transports or pressurizes liquids by relying on the change and movement of the working volume formed between the pump cylinder and meshing gears. A gear pump consists of two gears, a pump body, and front and rear covers, forming two enclosed spaces. When the gears rotate, the volume of the space on the disengaged side increases, creating a vacuum that draws in liquid. Conversely, the volume of the space on the meshing side decreases, forcing the liquid into the pipeline. The suction and discharge chambers are separated by the meshing line of the two gears. The pressure at the discharge port of a gear pump depends entirely on the resistance at the pump outlet.

[0003] Currently, Chinese patent application number CN202022168041.5 discloses a movable gear pump. The movable gear pump includes a motor and comprises: a base plate, a gear pump housing, a drive shaft, a drive gear, a driven shaft, a driven gear, an inlet, a mounting sleeve, an inlet pipe, a filter screen, an outlet, an outlet pipe, and universal rollers. The gear pump housing is a hollow cavity and is fixed to the base plate. The drive shaft passes through the gear pump housing, and both ends of the drive shaft are rotatably connected to the gear pump housing and connected to the motor. The drive gear is embedded in the gear pump housing and is sleeved on the outside of the drive shaft, with no relative rotation between the drive gear and the drive shaft. The driven shaft is embedded in the gear pump housing, and both ends of the driven shaft are rotatably connected to the gear pump housing, with the driven shaft located above the drive shaft. The driven gear is sleeved on the outside of the driven shaft, with no relative rotation between the driven gear and the driven shaft, and the driven gear meshes with the drive gear.

[0004] In the aforementioned prior art, the device can move in any direction through four universal casters installed at the bottom of the base plate. However, no specific structure for replacing the universal casters under the base plate is disclosed. Most common installation methods use bolt connections. When the universal casters are bolted to the base plate and need to be replaced due to wear and damage, the device needs to be laid down to remove the bolts and replace the universal casters because the universal casters are located at the bottom of the base plate. This makes the replacement of the universal casters inconvenient. Therefore, the applicant has developed a new technical solution in the actual production process to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a movable gear pump with the advantage of easy replacement of universal rollers.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model provides a movable gear pump, including a base plate disposed below the gear pump. Each of the four corners of the bottom end of the base plate has a connecting groove, and each of the four connecting grooves can be detachably installed with a mounting column by means of a mounting component. The bottom end of each of the four mounting columns is equipped with a universal roller by a first bolt.

[0008] By adopting the above technical solution, during installation, the universal roller is installed at the bottom of the mounting column using the first bolt. Then, the mounting column is vertically installed in the connecting groove using the mounting component. At this time, the universal roller will be located below the base plate through the connecting groove. When the universal roller is worn and needs to be replaced, simply remove the mounting column vertically from the connecting groove using the mounting component, and then unscrew the first bolt to remove the universal roller from the mounting column. There is no need to lay the device down to replace the damaged universal roller. The disassembly and assembly are simple.

[0009] Preferably, the mounting component includes a sleeve coaxially fixedly connected in the communicating groove, a retaining ring coaxially provided at the bottom end of the sleeve, the mounting column includes a column and an extension column coaxially provided at the bottom end of the column, the universal roller is installed at the bottom end of the extension column by a first bolt, the column is coaxially located above the retaining ring inside the sleeve, and the bottom end of the column abuts against the top end of the retaining ring, the bottom end of the extension column passes through the retaining ring, and a retaining plate is threadedly connected inside the sleeve, and the retaining plate is located above the column and abuts against the top end of the column.

[0010] Preferably, the baffle includes a threaded disc and a buffer pad disposed at the bottom end of the threaded disc, the bottom end of the buffer pad is provided with a pressure plate, the threaded disc is threadedly connected to the sleeve, and the bottom end of the pressure plate abuts against the top end of the mounting column.

[0011] Preferably, the sleeve is provided with a limiting element for restricting the rotation of the baffle.

[0012] Preferably, the top end of the sleeve extends outside the communicating groove, and the limiting member includes a limiting disc disposed at the top of the threaded disc. The side wall of the limiting disc is provided with a plurality of limiting grooves, and each limiting groove is evenly distributed along the circumference of the limiting disc. A threaded groove corresponding to one of the limiting grooves is opened on one side of the outer wall of the sleeve, and a limiting bolt is threadedly connected in the threaded groove. The limiting bolt is located above the base plate, and the end of the limiting bolt near the limiting disc extends horizontally into the limiting groove corresponding to the threaded groove.

[0013] Preferably, the top of the limiting disc is provided with a circular groove on the same axis, and a rotating block is provided at the bottom of the groove.

[0014] The beneficial effects of this utility model are as follows: During installation, the universal roller is installed at the bottom of the mounting column using the first bolt, and then the mounting column is vertically installed in the connecting groove using the mounting component. At this time, the universal roller will be located below the base plate through the connecting groove. When the universal roller is worn and needs to be replaced, simply remove the mounting column vertically from the connecting groove using the mounting component, and then unscrew the first bolt to remove the universal roller from the mounting column. There is no need to lay the device down to replace the damaged universal roller, making disassembly and assembly simple. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0017] Figure 2 This is a schematic diagram illustrating the structure of the rotating block in this embodiment;

[0018] Figure 3 This is a schematic diagram illustrating the structure of the circular groove in this embodiment;

[0019] Figure 4 This is a schematic diagram illustrating the structure of the baffle in this embodiment.

[0020] Explanation of reference numerals in the attached figures:

[0021] In the diagram: 1. Gear pump; 2. Base plate; 3. Connecting groove; 4. Mounting column; 5. First bolt; 6. Universal roller; 7. Sleeve; 8. Retaining ring; 9. Column; 10. Extension column; 12. Baffle plate; 13. Threaded disc; 14. Buffer pad; 15. Pressure plate; 16. Limiting disc; 17. Limiting groove; 18. Threaded groove; 19. Limiting bolt; 20. Circular groove; 21. Rotary block. 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] A movable gear pump includes a base plate 2 disposed below the gear pump 1, such as... Figure 1and Figure 2 and Figure 3 The bottom of the base plate 2 has four connecting grooves 3 at its four corners, and each of the four connecting grooves 3 can be detachably installed with a mounting post 4 through a mounting component. The bottom of each of the four mounting posts 4 is fitted with a universal roller 6 through a first bolt 5.

[0024] like Figure 1 and Figure 2 and Figure 3 During installation, the universal roller 6 is installed at the bottom of the mounting column 4 using the first bolt 5. Then, the mounting column 4 is vertically installed in the connecting groove 3 using the mounting bracket. At this time, the universal roller 6 will be located below the base plate 2 through the connecting groove 3. When the universal roller 6 is worn and needs to be replaced, simply remove the mounting column 4 vertically from the connecting groove 3 using the mounting bracket, and then unscrew the first bolt 5 to remove the universal roller 6 from the mounting column 4. The damaged universal roller 6 can be replaced without laying the device down. The disassembly and assembly are simple.

[0025] like Figure 1 and Figure 2 and Figure 3 The mounting components include a sleeve 7 coaxially fixedly connected within the connecting groove 3. A retaining ring 8 is coaxially provided at the bottom end of the sleeve 7. The mounting column 4 includes a column 9 and an extension column 10 coaxially located at the bottom end of the column 9. A universal roller 6 is mounted on the bottom end of the extension column 10 via a first bolt 5. The column 9 is coaxially located above the retaining ring 8 inside the sleeve 7, and the bottom end of the column 9 abuts against the top end of the retaining ring 8. The bottom end of the extension column 10 passes through the retaining ring 8. A retaining plate 12 is threaded into the sleeve 7, and the retaining plate 12 is located above the column 9 and abuts against the top end of the column 9. When the universal roller 6 needs to be removed for replacement, simply unscrew the retaining plate 12 inside the sleeve 7, and then vertically pull the mounting column 4 formed by the column 9 and the extension column 10 out of the sleeve 7. At this time, the universal roller 6 follows the mounting column 4 out of the sleeve 7 (e.g., Figure 4 Then, unscrew the first bolt 5 and remove the universal roller 6 from the extension column 10 for replacement. There is no need to lay the device down to replace the damaged universal roller 6. The disassembly and assembly are simple.

[0026] like Figure 3 and Figure 4 The baffle 12 includes a threaded disc 13 and a buffer pad 14 disposed at the bottom of the threaded disc 13. The bottom of the buffer pad 14 is provided with a pressure plate 15. The threaded disc 13 is threadedly connected to the sleeve 7. The bottom of the pressure plate 15 abuts against the top of the mounting column 4. The purpose of this arrangement is that when the device is moved by the universal roller 6, the buffer pad 14 located between the threaded disc 13 and the pressure plate 15 can buffer the base plate 2, so as to reduce the impact of vibration on the service life of the gear pump 1 on the base plate 2 when the device is moved.

[0027] like Figure 1 and Figure 3 and Figure 4 The sleeve 7 is provided with a limiting member for limiting the rotation of the baffle 12. The top end of the sleeve 7 extends to the outside of the connecting groove 3. The limiting member includes a limiting plate 16 provided at the top of the threaded plate 13. The side wall of the limiting plate 16 is provided with a plurality of limiting grooves 17, and each limiting groove 17 is evenly distributed along the circumference of the limiting plate 16. A threaded groove 18 corresponding to one of the limiting grooves 17 is opened on one side of the outer wall of the sleeve 7, and a limiting bolt 19 is threadedly connected in the threaded groove 18. The limiting bolt 19 is located above the base plate 2, and the end of the limiting bolt 19 near the limiting plate 16 extends horizontally into the limiting groove 17 corresponding to the threaded groove 18.

[0028] like Figure 1 and Figure 3 and Figure 4 By engaging the limiting bolt 19 with one of the limiting grooves 17 on the limiting disc 16, the limiting disc 16 can be restricted, thereby restricting the threaded disc 13 from rotating and reducing the likelihood of the threaded disc 13 rotating due to vibration. When it is necessary to remove the universal roller 6, first unscrew the limiting bolt 19, then unscrew the retaining plate 12 formed by the threaded disc 13, the buffer pad 14, and the pressure plate 15 out of the sleeve 7, and then vertically pull out the mounting column 4 formed by the column 9 and the extension column 10 from the sleeve 7. At this time, the universal roller 6 will follow the mounting column 4 out of the sleeve 7. Then unscrew the first bolt 5 to remove the universal roller 6 from the extension column 10 for replacement. The disassembly and assembly are simple.

[0029] like Figure 2 and Figure 3 The top of the limiting disc 16 is coaxially provided with a circular groove 20, and the bottom of the circular groove 20 is provided with a rotating block 21. The purpose of this setting is that the retaining plate 12 formed by the threaded disc 13, the buffer pad 14 and the pressure plate 15 can be easily unscrewed from the sleeve 7 by the rotating block 21 on the limiting disc 16. It is simple and convenient to use.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A movable gear pump, comprising a base plate (2) disposed below the gear pump (1), characterized in that, The bottom of the base plate (2) has four connecting grooves (3) at the four corners, and each of the four connecting grooves (3) can be detachably installed with a mounting column (4) through a mounting component. The bottom of each of the four mounting columns (4) is equipped with a universal roller (6) through a first bolt (5). The mounting component includes a sleeve (7) coaxially fixedly connected in the communicating groove (3). A retaining ring (8) is coaxially provided at the bottom end of the sleeve (7). The mounting column (4) includes a column (9) and an extension column (10) coaxially provided at the bottom end of the column (9). The universal roller (6) is installed at the bottom end of the extension column (10) by a first bolt (5). The column (9) is coaxially located above the retaining ring (8) in the sleeve (7), and the bottom end of the column (9) abuts against the top end of the retaining ring (8). The bottom end of the extension column (10) passes through the retaining ring (8). A retaining plate (12) is threadedly connected inside the sleeve (7), and the retaining plate (12) is located above the column (9) and abuts against the top end of the column (9).

2. A portable gear pump as described in claim 1, characterized in that, The baffle (12) includes a threaded disc (13) and a buffer pad (14) disposed at the bottom of the threaded disc (13). The bottom of the buffer pad (14) is provided with a pressure plate (15). The threaded disc (13) is threadedly connected to the sleeve (7). The bottom of the pressure plate (15) abuts against the top of the mounting post (4).

3. A movable gear pump as described in claim 2, characterized in that, The sleeve (7) is provided with a limiting element for restricting the rotation of the baffle (12).

4. A movable gear pump as described in claim 3, characterized in that, The top end of the sleeve (7) extends outside the connecting groove (3). The limiting member includes a limiting disc (16) set at the top of the threaded disc (13). The side wall of the limiting disc (16) is provided with several limiting grooves (17), and each limiting groove (17) is evenly distributed along the circumference of the limiting disc (16). A threaded groove (18) corresponding to one of the limiting grooves (17) is opened on one side of the outer wall of the sleeve (7), and a limiting bolt (19) is threadedly connected in the threaded groove (18). The limiting bolt (19) is located above the base plate (2), and the end of the limiting bolt (19) near the limiting disc (16) extends horizontally into the limiting groove (17) corresponding to the threaded groove (18).

5. A movable gear pump as described in claim 4, characterized in that, The top of the limiting disk (16) is coaxially provided with a circular groove (20), and the bottom of the circular groove (20) is provided with a rotating block (21).

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