Flow control device of movable pneumatic lubricating grease filling pump

Abstract

The utility model discloses a flow control device of a movable pneumatic lubricating grease filling pump, which relates to the technical field of lubricating pump equipment and comprises a valve rod, a motor is arranged below the valve rod, the output end of the motor is fixedly connected with an output shaft, and the output shaft is connected with the valve rod through a loop bar. The valve rod can be electrically and manually driven to rotate, so that the flow of lubricating grease passing through a pipeline is adjusted, the valve rod can be driven to rotate through the motor at ordinary times so as to adjust the flow, and when the motor breaks down and the output shaft cannot rotate normally, the sleeve rod can be pushed upwards to be matched with the fixing assembly to fix the sleeve rod. The first gear is meshed with the second gear, then the sleeve rod and the valve rod can be driven to rotate by shaking the crank handle in a transmission mode, flow adjustment of lubricating oil is achieved, the application range is wider, use is convenient, and practicability is higher. Through the fixing assembly, the position of the sleeve rod after adjustment can be conveniently and rapidly fixed or detached.

Description

Technical Field

[0001] This utility model relates to the field of lubrication pump equipment technology, specifically a flow control device for a mobile pneumatic grease pump. Background Technology

[0002] A lubrication pump is a lubrication device that supplies lubricant to lubrication points. There are many types, among which the pneumatic grease pump is one. It is further divided into stationary and mobile types depending on the needs. A mobile pneumatic grease pump is a pneumatic device driven by compressed air, mainly used for the automatic addition of grease to mechanical equipment. Its working principle is that compressed air drives a pneumatic motor, which in turn drives a piston in reciprocating motion. The difference in area between the upper and lower ends of the piston generates a high-pressure fluid output, thereby achieving the addition of grease. This equipment is suitable for medium- and long-distance transportation of high-viscosity fluids and features simple structure, ease of use, and a high degree of automation.

[0003] Referring to patent CN218377921U, a flow regulation device based on oil pump delivery is disclosed, relating to the field of lubricating oil delivery technology. It includes a regulating valve stem, with a sleeve rod installed at one end. A sleeve is fitted onto the sleeve rod, and the sleeve rod slides inside the sleeve. A rotating device for driving its rotation is installed on the sleeve. A rotating ring is fitted onto the outside of the sleeve, and a fixing component for fixing the rotating ring to the sleeve is installed on the rotating ring. A rotating handwheel is installed on one side of the rotating ring, and stop bars are evenly distributed on the rotating ring. Insert rods that can be inserted into the gaps between the stop bars are evenly distributed on the rotating handwheel. The rotating ring is fixed to the sleeve by the fixing component. At this time, the insert rods are positioned between the stop bars on the rotating ring. When the rotating handwheel rotates, it drives the rotating ring to rotate synchronously, thereby driving the regulating valve stem to rotate, thus regulating the speed of lubricating oil delivery. Through the above operation, the electronic control and manual operation can independently complete the regulation of lubricating oil flow without interference.

[0004] In the above-mentioned flow regulation control structure, the output shaft of the motor used for the electric regulating valve stem is connected to the sleeve. Therefore, if there is a fault inside the motor that causes its output shaft to be unable to rotate, the above-mentioned structure cannot drive the regulating valve stem to rotate even by manually using the handwheel, thereby regulating the flow of lubricating oil. It is only suitable for situations where the motor is faulty but its output shaft can rotate normally. Its scope of application is relatively limited and its practicality is relatively poor. Utility Model Content

[0005] The purpose of this invention is to provide a flow control device for a mobile pneumatic grease pump to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flow control device for a mobile pneumatic grease pump, comprising a valve stem, a motor located below the valve stem, an output shaft fixedly connected to the output end of the motor, the output shaft and the valve stem being connected by a sleeve rod, the sleeve rod being slidably fitted on the outside of the valve stem and the output shaft, slide bars symmetrically provided on the lower end of the valve stem and the outer wall of the output shaft, and slide grooves symmetrically provided on the inner wall of the sleeve rod to fit the slide bars, a hand crank assembly connected to the sleeve rod on one side of the valve stem, and a fixing assembly fitted on the outside of the valve stem above the slide bars.

[0007] Furthermore, the fixing component includes a connecting sleeve, which is fixedly fitted onto the outside of the valve stem. A mounting shell is fixedly fitted onto the outside of the connecting sleeve. An adjusting cover is rotatably fitted onto the upper outer side of the connecting sleeve, and the adjusting cover is located on top of the mounting shell. A connecting cylinder is connected to the bottom of the adjusting cover, and the connecting cylinder is fitted onto the outside of the connecting sleeve. A torsion spring is fitted onto the outside of the connecting cylinder, and both ends of the torsion spring are fixedly connected to the mounting shell and the adjusting cover, respectively. A locking block is symmetrically provided on the inner wall of the connecting cylinder. A connecting block is symmetrically provided on the top of the valve stem, and a locking groove is symmetrically opened on the opposite outer walls of the two connecting blocks, and the locking groove is adapted to the locking block. A through hole adapted to the connecting block is symmetrically opened on the bottom of the mounting shell. The fixing component allows for convenient and quick fixing or disassembly of the valve stem after it has been slid up and adjusted.

[0008] Furthermore, the hand crank assembly includes a base, which is located on one side of the motor. A hand crank is rotatably mounted on the top of the base. A second gear is sleeved on the upper outer wall of the hand crank. A first gear is provided on one side of the second gear, which is adapted to the second gear. The first gear is sleeved on the outside of the sleeve rod, so that when the motor fails, the hand crank drives the sleeve rod to rotate the valve rod, thereby realizing the regulation and control of the flow rate of lubricating oil passing through the pipeline.

[0009] Furthermore, the upper end of the hand crank is connected to a hand crank handle, which is located above the second gear. The lower end of the hand crank is rotatably connected to the base via a bearing, so that the regulating valve rod can be manually driven to rotate.

[0010] Furthermore, the diameter of gear one is smaller than that of gear two, and gear one is located below gear two, so that when gear two is manually cranked to rotate a small distance, gear one can be driven to rotate at an angle greater than the angle of the hand crank.

[0011] Furthermore, the inner wall of the mounting shell is convex, the locking block is arc-shaped, and the locking block and the connecting cylinder are concentric, so as to cooperate with the adjusting cover to form a closed space, thereby protecting the internal components. The locking block can be used to restrict and fix the connecting block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model can drive the valve stem to rotate electrically and manually, thereby adjusting the flow rate of lubricating grease through the pipeline. Normally, the valve stem can be driven by a motor to adjust the flow rate. When the motor fails or the output shaft cannot rotate normally, the sleeve rod can be pushed up to fix it with the fixing component, so that gear one and gear two mesh. Then, the sleeve rod and valve stem can be driven to rotate by shaking the hand crank to adjust the flow rate of lubricating oil. It has a wider range of applications, is convenient to use, and is more practical.

[0014] 2. This utility model, through the fixing component, can conveniently and quickly fix or disassemble the position of the sleeve rod after adjustment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure between the sleeve rod, slide bar, mounting shell and valve stem of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of gear one and gear two when they are meshing.

[0018] Figure 4 This is a structural diagram of the connecting sleeve, connecting cylinder, and locking block of this utility model.

[0019] The following are the labels in the diagram: 1. Valve stem; 2. Sleeve rod; 3. Output shaft; 4. Motor; 5. Slide bar; 6. Slide groove; 7. Gear 1; 8. Base; 9. Hand crank; 10. Gear 2; 11. Connecting block; 12. Connecting sleeve; 13. Mounting shell; 14. Adjusting cover; 15. Connecting cylinder; 16. Locking block; 17. Torsion spring; 18. Locking groove; 19. Hand crank. Detailed Implementation

[0020] 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.

[0021] Example: Figure 1 - Figure 4As shown, this utility model provides a technical solution: a flow control device for a mobile pneumatic grease pump, including a valve stem 1, a motor 4 below the valve stem 1, an output shaft 3 fixedly connected to the output end of the motor 4, the output shaft 3 and the valve stem 1 connected by a sleeve rod 2, and the sleeve rod 2 slidably sleeved on the outside of the valve stem 1 and the output shaft 3, the lower end of the valve stem 1 and the outer wall of the output shaft 3 are symmetrically provided with slide bars 5, the inner wall of the sleeve rod 2 is symmetrically provided with slide grooves 6 adapted to the slide bars 5, a hand crank assembly is provided on one side of the valve stem 1 and is connected to the sleeve rod 2 for transmission, and a fixing assembly is sleeved on the outside of the valve stem 1 above the slide bars 5. In this example, the fixing component includes a connecting sleeve 12, which is fixedly fitted on the outside of the valve stem 1. A mounting shell 13 is fixedly fitted on the outside of the connecting sleeve 12. An adjusting cover 14 is rotatably fitted on the upper outer side of the connecting sleeve 12, and the adjusting cover 14 is located on top of the mounting shell 13. A connecting cylinder 15 is connected to the bottom of the adjusting cover 14, and the connecting cylinder 15 is fitted on the outside of the connecting sleeve 12. A torsion spring 17 is fitted on the outside of the connecting cylinder 15, and both ends of the torsion spring 17 are fixedly connected to the mounting shell 13 and the adjusting cover 14, respectively. A locking block 16 is symmetrically provided on the inner wall of the connecting cylinder 15. A connecting block 11 is symmetrically provided on the top of the valve stem 2, and a locking groove 18 is symmetrically opened on the opposite outer walls of the two connecting blocks 11. The locking groove 18 is adapted to the locking block 16. A through hole adapted to the connecting block 11 is symmetrically opened on the bottom of the mounting shell 13. The fixing component allows for convenient and quick fixing or disassembly of the valve stem 2 after it has been slid up and adjusted. In this example, the hand crank assembly includes a base 8, which is located on one side of the motor 4. A hand crank 9 is rotatably mounted on the top of the base 8. A gear 2 10 is sleeved on the upper outer wall of the hand crank 9. A gear 1 7 that is adapted to the gear 2 10 is located on one side of the gear 2 10. The gear 1 7 is sleeved on the outside of the sleeve rod 2 so that when the motor 4 fails, the hand crank drives the sleeve rod 2 to rotate the valve stem 1, thereby realizing the regulation and control of the flow rate of lubricating oil passing through the pipeline.

[0022] In this example, the upper end of the hand crank 9 is connected to the hand crank handle 19, which is located above the gear 10. The lower end of the hand crank 9 is rotatably connected to the base 8 via a bearing, so that the regulating valve rod can be rotated by hand. In this example, the diameter of the gear 7 is smaller than the diameter of the gear 10, and the gear 7 is located below the gear 10, so that when the gear 10 is rotated a small distance by hand, the gear 7 can be rotated at an angle greater than that of the hand crank 9. In this example, the inner wall of the mounting shell 13 is convex, and the locking block 16 is arc-shaped. The locking block 16 is concentric with the connecting cylinder 15, so that it can cooperate with the adjusting cover 14 to form a closed space, thereby protecting the internal components. The locking block 16 can be used to restrict and fix the connecting block 11.

[0023] The working principle of this utility model is as follows: The device is connected to the valve stem 1 of the flow regulating valve on the oil outlet pipe of the grease pump. When the flow rate of the lubricating oil needs to be adjusted, the motor 4 is started, causing the output shaft 3 to rotate. At the same time, the slide bar 5 connected to the output shaft 3 drives the sleeve rod 2 to rotate. The sleeve rod 2, in turn, cooperates with the slide bar 5 on the valve stem 1 to transmit power, thereby driving the valve stem 1 to rotate, thus realizing the regulation and control of the lubricating oil flow rate. When the motor 4 malfunctions or the output end of the motor 4 and the output shaft 3 cannot rotate, the sleeve rod 2 can be pushed upward to slide along the valve stem 1, causing the sleeve rod 2 to drive the gear 7 to move upward synchronously. At the same time, the adjusting cover 14 is twisted to drive the connecting cylinder 15 to rotate. The connecting cylinder 15 then cooperates with the mounting shell 13 to twist the torsion spring 17. Simultaneously, the connecting cylinder 15 drives the locking block 1. 6. The synchronous rotation moves the locking block 16 to the side of the through hole. Then, the connecting block 11 at the top of the sleeve rod 2 passes through the through hole and enters the mounting shell 13, so that the top of the sleeve rod 2 fits against the bottom of the mounting shell 13. Then, the force applied to the adjusting cover 14 is released, so that the connecting cylinder 15 drives the locking block 16 to reset under the torque of the torsion spring 17, so that the locking block 16 is locked into the slot 18, thereby limiting and fixing the connecting block 11, and completing the fixing of the position of the sleeve rod 2. At this time, the first gear 7 is just meshed with the second gear 10. Then, the hand crank 19 can be operated to drive the hand crank 9, which in turn drives the second gear 10, which drives the meshing gear 7 to drive the sleeve rod 2, which in turn drives the valve stem 1 to rotate, thereby adjusting the lubricating oil flow. The two adjustment methods do not interfere with each other, and its application range is wider and its practicality is stronger.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A flow control device for a mobile pneumatic grease pump, comprising a valve stem (1), characterized in that: A motor (4) is provided below the valve stem (1). The output end of the motor (4) is fixedly connected to an output shaft (3). The output shaft (3) and the valve stem (1) are connected by a sleeve (2). The sleeve (2) is slidably sleeved on the outside of the valve stem (1) and the output shaft (3). Slides (5) are symmetrically provided on the lower end of the valve stem (1) and the outer wall of the output shaft (3). Slide grooves (6) adapted to slides (5) are symmetrically opened on the inner wall of the sleeve (2). A hand crank assembly connected to the sleeve (2) is provided on one side of the valve stem (1). A fixing assembly is sleeved on the outside of the valve stem (1) above the slide (5). The fixing assembly includes a connecting sleeve (12), which is fixedly sleeved on the outside of the valve stem (1). An installation shell (13) is fixedly sleeved on the outside of the connecting sleeve (12). An adjusting cover (14) is rotatably fitted on the outer side of the upper end of the connecting sleeve (12), and the adjusting cover (14) is located on the top of the mounting shell (13). A connecting cylinder (15) is connected to the bottom of the adjusting cover (14), and the connecting cylinder (15) is fitted on the outside of the connecting sleeve (12). A torsion spring (17) is fitted on the outside of the connecting cylinder (15), and the two ends of the torsion spring (17) are fixedly connected to the mounting shell (13) and the adjusting cover (14) respectively. A locking block (16) is symmetrically provided on the inner wall of the connecting cylinder (15). A connecting block (11) is symmetrically provided on the top of the sleeve rod (2), and a locking groove (18) is symmetrically opened on the opposite outer wall of the two connecting blocks (11), and the locking groove (18) is adapted to the locking block (16). A through hole adapted to the connecting block (11) is symmetrically opened on the bottom of the mounting shell (13).

2. A flow control device for a mobile pneumatic grease lubrication pump according to claim 1, characterized in that: The hand crank assembly includes a base (8) and the base (8) is located on one side of the motor (4). A hand crank (9) is rotatably mounted on the top of the base (8). A gear two (10) is sleeved on the upper outer wall of the hand crank (9). A gear one (7) is provided on one side of the gear two (10) and is adapted to the gear two (10). The gear one (7) is sleeved on the outside of the sleeve rod (2).

3. A flow control device for a mobile pneumatic grease lubrication pump according to claim 2, characterized in that: The upper end of the hand crank (9) is connected to the hand crank handle (19), and the hand crank handle (19) is located above the gear two (10). The lower end of the hand crank (9) is rotatably connected to the base (8) through a bearing.

4. A flow control device for a mobile pneumatic grease lubrication pump according to claim 2, characterized in that: The diameter of gear one (7) is smaller than the diameter of gear two (10), and gear one (7) is located below gear two (10).

5. A flow control device for a mobile pneumatic grease lubrication pump according to claim 1, characterized in that: The inner wall of the mounting shell (13) is convex, the locking block (16) is arc-shaped, and the locking block (16) and the connecting cylinder (15) are concentric.

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