A split pressure plate for a grease pump

Abstract

The utility model relates to the technical field of grease pumping, and specifically to a split pressure plate for grease pumping, comprising a pressure plate body, an extrusion hole penetrating the upper and lower sides is arranged in the middle of the pressure plate body, a mounting column is installed on the upper side of the pressure plate body, a mounting hole penetrating the upper and lower sides is arranged on the mounting column, the mounting hole and the extrusion hole are aligned and connected, an exhaust pipe and an air blow pipe connected to the extrusion hole are arranged on the mounting column, a valve for controlling the on-off of the exhaust pipe is installed on the exhaust pipe; a one-way valve for one-way conduction toward the extrusion hole is arranged on the air blow pipe, and the air blow pipe is connected to an external air supply device. By arranging the air blow pipe, after the grease pumping is completed, air is blown toward the extrusion hole through the air blow pipe by the external air supply device, and in the process of the pressure plate body moving up, the grease barrel is in a normal air pressure state or a pressurized state, so as to prevent the grease barrel from moving up with the pressure plate body. The one-way valve can prevent grease from entering the air blow pipe during the downward pressing of the pressure plate body.

Description

Technical Field

[0001] The utility model relates to the technical field of grease pumping, in particular to a split pressure plate for a grease pump. Background Art

[0002] Grease pump devices are widely used in metallurgy, mining, coal, electricity, cement, chemical industry and other fields. They are mainly used for filling or pressurizing high-viscosity, low-fluidity grease materials. They are mainly composed of pump frame, pneumatic motor, oil pump assembly, pressure plate assembly, control system, etc. When the grease pump device extracts the grease in the barrel, the pressure plate assembly is pressed down to press the grease in the barrel into the oil pump assembly, and the grease is extracted with the help of the oil pump assembly.

[0003] In the prior art, for example, application number CN202220440426.9 discloses a pneumatic grease pump that is convenient for air-controlled exhaust. When the grease is extracted, the air between the pressure plate and the barrel is discharged through the exhaust port. This can solve the problem of preventing excess air from entering the oil pump assembly during the downward pressure process. However, after the pressure plate has pressed the grease, the pressure plate needs to be pulled out of the grease barrel. During the pulling process, due to the negative pressure between the pressure plate and the bottom of the barrel, the air needs to return to the grease barrel from the exhaust port to pull the pressure plate out of the grease barrel. However, due to the high viscosity of the grease, the grease blocked in the exhaust port will prevent the air from entering the grease barrel, so that the grease barrel will rise together with the pressure plate during the rising process. Often during the rising process of the pressure plate, the operator needs to press the grease barrel, or fix the column grease barrel through other fixed structures. This hard pulling method is not only troublesome, but also easy to cause some dangerous accidents by manually pressing the grease barrel. Utility Model Content

[0004] The utility model aims to provide a split pressure plate for a grease pump, so as to solve the problem in the prior art that the pressure plate is difficult to be pulled out from a grease barrel after the grease pump has extracted the grease.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A split pressure plate for a grease pump comprises a pressure plate body, an extrusion hole penetrating the upper and lower sides is arranged in the middle of the pressure plate body, a mounting column is installed on the upper side of the pressure plate body, a mounting hole penetrating the upper and lower sides is arranged on the mounting column, the mounting hole and the extrusion hole are aligned and connected, an exhaust pipe and an air blow pipe connected to the extrusion hole are arranged on the mounting column, a valve for controlling the on-off of the exhaust pipe is installed on the exhaust pipe; a one-way valve for unidirectional conduction toward the extrusion hole is arranged on the air blow pipe, and the air blow pipe is connected to an external air supply device.

[0007] A further technical solution is that an exhaust hole and an air blowing hole connected to the extrusion hole are arranged on the upper side of the mounting column, the exhaust pipe is connected to the exhaust hole, and the air blowing pipe is connected to the air blowing hole.

[0008] A further technical solution is that a plurality of locking screw holes connected to the mounting hole are arranged around the side surface of the mounting column, and locking screws are arranged in the plurality of locking screw holes with matching threads.

[0009] A further technical solution is that a sealing ring groove is provided in a hole wall depression surrounding the mounting hole, a sealing ring is installed in the sealing ring groove, and an inner wall of the sealing ring protrudes out of the sealing ring groove.

[0010] A further technical solution is that a sealing sheet is installed on the lower side of the pressure plate body, a first through hole aligned with the extrusion hole is provided in the middle of the sealing sheet, and an edge of the sealing sheet protrudes from the edge of the pressure plate body.

[0011] A further technical solution is that the sealing sheet is installed on the lower side of the pressure plate body through a pressing sheet, a second through hole aligned with the extrusion hole is provided in the middle of the pressing sheet, the diameter of the pressing sheet is smaller than the diameter of the pressure plate body, and the pressing sheet is installed on the lower side of the pressure plate body through fixing screws so that the sealing sheet is installed between the pressing sheet and the pressure plate body.

[0012] A further technical solution is that a positioning ring is formed on the lower side of the pressure plate body and protrudes downward around the extrusion hole, and the hole walls of the first through hole and the second through hole are both in contact with the outer wall of the positioning ring.

[0013] A further technical solution is that the diameter of the mounting hole is smaller than the diameter of the extrusion hole, and the connection between the mounting hole and the extrusion hole is transitionally connected via an inclined surface.

[0014] Compared with the prior art, the utility model has at least one of the following beneficial effects: 1. When using a split pressure plate to extract grease, the extraction pipe and the mounting hole of the grease pump are connected. During the process of pressing down the pressure plate body, the grease enters the extraction pipe through the extrusion hole and the mounting hole in turn, and then is pumped out by the grease pump; 2. By setting an exhaust pipe, the excess air between the pressure plate body and the grease can be discharged through the exhaust pipe in the initial stage of pressing down the pressure plate body. After the discharge is completed, the grease is prevented from being discharged from the exhaust pipe by closing the valve; 3. By setting an air blowing pipe, after the grease is pumped, air is blown toward the extrusion hole through the air blowing pipe through an external air supply device. In this way, during the process of the pressure plate body moving up, the grease barrel can be in a normal air pressure state or a pressurized state, which can prevent the grease barrel from moving up with the pressure plate body; 4. By setting a one-way valve, grease can be prevented from entering the air blowing pipe during the process of pressing down the pressure plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1The utility model is a top view of a split pressure plate for a grease pump.

[0016] Figure 2 The utility model is a bottom-view overall schematic diagram of a split pressure plate for a grease pump.

[0017] Figure 3 The utility model is a schematic diagram of the disassembly of a split pressure plate for a grease pump.

[0018] Icons: 1-pressure plate body, 2-extrusion hole, 3-mounting column, 4-mounting hole, 5-exhaust pipe, 6-air blowing pipe, 7-exhaust hole, 8-air blowing hole, 9-locking screw hole, 10-sealing ring groove, 11-sealing ring, 12-sealing sheet, 13-first through hole, 14-pressure sheet, 15-second through hole, 16-positioning ring, 17-inclined surface, 18-mounting screw hole, 19-first circular hole, 20-second circular hole. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] Figures 1 to 3 Shown is an embodiment of the utility model.

[0021] Embodiment 1:

[0022] like Figure 1 , 2As shown, a split pressure plate for a grease pump includes a pressure plate body 1, an extrusion hole 2 penetrating the upper and lower sides is arranged in the middle of the pressure plate body 1, a mounting column 3 is installed on the upper side of the pressure plate body 1, a mounting hole 4 penetrating the upper and lower sides is arranged on the mounting column 3, the mounting hole 4 and the extrusion hole 2 are aligned and connected, an exhaust pipe 5 and an air blowing pipe 6 connected to the extrusion hole 2 are arranged on the mounting column 3, a valve for controlling the on and off of the exhaust pipe 5 is installed on the exhaust pipe 5; a one-way valve for unidirectional conduction toward the extrusion hole 2 is arranged on the air blowing pipe 6, and the air blowing pipe 6 is connected to an external air supply device. When the split pressure plate is used for grease extraction, the extraction pipe of the grease pump is connected to the installation hole 4, and when the pressure plate body 1 is pressed down, the grease enters the extraction pipe through the extrusion hole 2 and the installation hole 4 in turn, and then is pumped out by the grease pump. By providing the exhaust pipe 5, the excess air between the platen body 1 and the grease can be discharged through the exhaust pipe 5 at the initial stage of the platen body 1 being pressed downward. After the discharge is completed, the grease can be prevented from being discharged from the exhaust pipe 5 by closing the valve. By providing the air blowing pipe 6, after the grease is pumped, air can be blown toward the extrusion hole 2 through the air blowing pipe 6 by an external air supply device. In this way, the grease barrel can be in a normal air pressure state or a pressurized state during the upward movement of the platen body 1, and the grease barrel can be prevented from moving upward with the platen body 1. By providing the one-way valve, the grease can be prevented from entering the air blowing pipe 6 during the downward movement of the platen body 1.

[0023] The upper side of the mounting column 3 is provided with an exhaust hole 7 and an air blowing hole 8 connected to the extrusion hole 2, the exhaust pipe 5 is connected to the exhaust hole 7, and the air blowing pipe 6 is connected to the air blowing hole 8. By providing the exhaust hole 7, it is convenient to connect the exhaust pipe 5, so that the air in the extrusion hole 2 and the lower side of the pressure plate body 1 can be discharged through the exhaust hole 7 and the exhaust pipe 5. By providing the air blowing hole 8, after the grease extraction is completed, the external air supply device blows the air into the extrusion hole 2 through the air blowing pipe 6 and the air blowing hole 8, so that the pressure plate body 1 and the grease barrel are more easily separated.

[0024] Several locking screw holes 9 connected to the mounting hole 4 are arranged around the side of the mounting column 3, and locking screws are arranged in the several locking screw holes 9 in a threaded matching manner. By providing the locking screw holes 9 and the locking screws, when the split pressure plate is installed on the grease pump, the extraction tube of the grease pump is inserted into the mounting hole 4, and the locking screw is screwed so that the locking screw enters the mounting hole 4 and touches the outer wall of the extraction tube, so that the extraction tube can be locked in the mounting hole 4. With the help of the different lengths of the locking screw entering the mounting hole 4, extraction tubes of various diameters can be adapted, thereby improving the practicality of the split pressure plate. Compared with the pressure plate installed integrally on the conventional grease pump, the utility model can be installed on a different grease pump for use at any time.

[0025] A sealing ring groove 10 is provided in the hole wall depression surrounding the mounting hole 4, a sealing ring 11 is installed in the sealing ring groove 10, and the inner wall of the sealing ring 11 protrudes from the sealing ring groove 10. By providing the sealing ring groove 10 and the sealing ring 11, the outer wall of the extraction tube and the hole wall of the mounting hole 4 can be sealed, thereby preventing the grease in the grease barrel from leaking out from the outer wall of the extraction tube and the hole wall of the mounting hole 4. The sealing ring 11 can be positioned by the sealing ring groove 10, and sealing rings 11 of different specifications can be replaced according to the diameter of the extraction tube for sealing.

[0026] Embodiment 2:

[0027] On the basis of Example 1, Figure 3 As shown, a sealing sheet 12 is installed on the lower side of the platen body 1, and a first through hole 13 aligned with the extrusion hole 2 is provided in the middle of the sealing sheet 12, and the edge of the sealing sheet 12 protrudes from the edge of the platen body 1. By providing the sealing sheet 12, during the pressing process of the platen body 1, the edge of the sealing sheet 12 fits the inner wall of the grease barrel to seal the gap between the edge of the platen body 1 and the inner wall of the grease barrel, thereby ensuring that all the grease in the grease barrel is pumped out through the extrusion hole 2. The sealing sheet 12 also acts as a scraper to scrape off all the grease on the inner wall of the grease barrel.

[0028] The sealing sheet 12 is installed on the lower side of the platen body 1 through the pressing sheet 14. A second through hole 15 aligned with the extrusion hole 2 is provided in the middle of the pressing sheet 14. The diameter of the pressing sheet 14 is smaller than the diameter of the platen body 1. The pressing sheet 14 is installed on the lower side of the platen body 1 through the fixing screws so that the sealing sheet 12 is installed between the pressing sheet 14 and the platen body 1. The sealing sheet 12 can be well fixed on the lower side of the platen body 1 through the pressing sheet 14. A first circular hole 19 penetrating the upper and lower sides is provided on the pressing sheet 14. A second circular hole 20 penetrating the upper and lower sides is provided on the sealing sheet 12. A mounting screw hole 18 is provided on the lower side of the platen body 1. When installing the sealing sheet 12, the second circular hole 20 of the sealing sheet 12 is aligned with the mounting screw hole 18, and the first circular hole 19 and the second circular hole 20 of the pressing sheet 14 are aligned. Then, the fixing screws pass through the first circular hole 19 and the second circular hole 20 in sequence, and are threadedly matched with the mounting screw hole 18 to connect. In order to ensure that the pressing sheet 14 and the sealing sheet 12 are firmly installed, a plurality of the first circular holes 19, the second circular holes 20, the mounting screw holes 18 and the fixing screws are matched and arranged.

[0029] The lower side of the pressure plate body 1 is formed with a positioning ring 16 which protrudes downward around the extrusion hole 2, and the hole walls of the first through hole 13 and the second through hole 15 are both in contact with the outer wall of the positioning ring 16. By providing the positioning ring 16, the sealing sheet 12 and the pressing sheet 14 can be quickly positioned and installed, and the inner walls of the pressing sheet 14 and the sealing sheet 12 can be prevented from blocking the extrusion hole 2.

[0030] The diameter of the mounting hole 4 is smaller than the diameter of the extrusion hole 2, and the connection between the mounting hole 4 and the extrusion hole 2 is transitionally connected by an inclined surface 17. By providing the inclined surface 17, the grease in the extrusion hole 2 can be guided into the mounting hole 4, so as to be extracted through the extraction pipe.

[0031] Although the utility model is described herein with reference to a plurality of illustrative embodiments of the utility model, it should be understood that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the disclosure, drawings, and claims of the present application, various modifications and improvements may be made to the components and / or layout of the subject combination layout. In addition to the modifications and improvements made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A split pressure plate for a grease pump, comprising a pressure plate body (1), wherein a middle portion of the pressure plate body (1) is provided with an extrusion hole (2) passing through the upper and lower sides, a mounting column (3) is mounted on the upper side of the pressure plate body (1), and a mounting hole (4) passing through the upper and lower sides is disposed on the mounting column (3), wherein the mounting hole (4) and the extrusion hole (2) are aligned and connected, and characterized in that: An exhaust pipe (5) and an air blowing pipe (6) which are connected to the extrusion hole (2) are arranged on the mounting column (3); a valve for controlling the on-off of the exhaust pipe (5) is installed on the exhaust pipe (5); a one-way valve which conducts one-way flow toward the extrusion hole (2) is arranged on the air blowing pipe (6); and the air blowing pipe (6) is connected to an external air supply device.

2. The split pressure plate for a grease pump according to claim 1, characterized in that: An exhaust hole (7) and an air blowing hole (8) which are connected to the extrusion hole (2) are provided on the upper side of the mounting column (3); the exhaust pipe (5) is connected to the exhaust hole (7); and the air blowing pipe (6) is connected to the air blowing hole (8).

3. The split pressure plate for a grease pump according to claim 1, characterized in that: A plurality of locking screw holes (9) connected to the mounting hole (4) are arranged around the side surface of the mounting column (3), and locking screws are arranged in the plurality of locking screw holes (9) in a threaded manner.

4. The split pressure plate for a grease pump according to claim 1, characterized in that: A sealing ring groove (10) is provided in a recessed hole wall surrounding the mounting hole (4), a sealing ring (11) is installed in the sealing ring groove (10), and an inner wall of the sealing ring (11) protrudes out of the sealing ring groove (10).

5. The split pressure plate for a grease pump according to claim 1, characterized in that: A sealing sheet (12) is installed on the lower side of the pressure plate body (1), a first through hole (13) aligned with the extrusion hole (2) is provided in the middle of the sealing sheet (12), and an edge of the sealing sheet (12) protrudes from an edge of the pressure plate body (1).

6. The split pressure plate for a grease pump according to claim 5, characterized in that: The sealing sheet (12) is installed on the lower side of the pressure plate body (1) through a pressing sheet (14); a second through hole (15) aligned with the extrusion hole (2) is provided in the middle of the pressing sheet (14); the diameter of the pressing sheet (14) is smaller than the diameter of the pressure plate body (1); the pressing sheet (14) is installed on the lower side of the pressure plate body (1) through fixing screws so that the sealing sheet (12) is installed between the pressing sheet (14) and the pressure plate body (1).

7. The split pressure plate for a grease pump according to claim 6, characterized in that: The lower side of the pressure plate body (1) is formed with a positioning ring (16) which protrudes downwards around the extrusion hole (2), and the hole walls of the first through hole (13) and the second through hole (15) are both in contact with the outer wall of the positioning ring (16).

8. The split pressure plate for a grease pump according to claim 1, characterized in that: The diameter of the mounting hole (4) is smaller than the diameter of the extrusion hole (2), and the connection between the mounting hole (4) and the extrusion hole (2) is transitionally connected via an inclined surface (17).

Images