Lubricating pump core

Abstract

The utility model discloses a lubricating pump core which comprises an outer shell, a threaded connector is fixedly installed at one end of the outer shell, a boss is fixedly installed at the other end of the threaded connector, a sleeve is fixedly installed on the side, away from the threaded connector, of the boss, and a limiting end is distributed at the other end of the sleeve. The combined use of the piston rod, the guide block and the guide groove can facilitate the improvement of the movement stability of the piston rod during subsequent use, so that the situation of subsequent liquid leakage caused by position deviation of the piston rod is prevented, the piston rod can drive the piston head to synchronously move along with the piston rod during movement, and the service life of the piston rod is prolonged. And then the piston head drives the guide block to slide along the guide groove, so that the stability of the piston rod in the movement process is improved, the size of the piston head is matched with the size of the hole formed in the inner side of the sleeve, and then the situation that the piston rod shakes or inclines in the movement process can be further prevented.

Description

Technical Field

[0001] The utility model relates to the field of lubrication pump cores, in particular to a lubrication pump core. Background Art

[0002] A lubrication pump is a lubrication device that supplies lubricant to the lubrication parts. Mechanical equipment requires regular lubrication. In the past, the main method of lubrication was manual lubrication after a certain maintenance cycle based on the working condition of the equipment, such as grease. A lubrication pump can make this maintenance work easier. Lubrication pumps are divided into manual lubrication pumps and electric lubrication pumps. The pump core is the heart of the lubrication pump.

[0003] For example, a high-pressure lubrication pump core disclosed in the utility model with authorization announcement number CN215259127U uses wear-resistant and high-pressure resistant materials and further uses strict processing technology to ensure that the service life of the device reaches about one year, which has a long service life. However, most of the lubrication pump cores currently have poor practicality when in use due to their simple structure. The piston rod is prone to slight shaking during movement, which affects the normal operation of the subsequent lubrication pump and causes unnecessary trouble. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a lubrication pump core, which can solve the technical problem that the current lubrication pump core adopts wear-resistant and high-pressure resistant materials, and further ensures that the service life of the device reaches about one year through strict processing technology, and has a long service life. However, most of the current lubrication pump cores are not practical when in use due to their simple structure, and their piston rods are prone to slight shaking during movement, affecting the normal operation of the subsequent lubrication pump, thereby causing unnecessary troubles.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a lubrication pump core, comprising an outer shell, a threaded joint is fixedly installed on one end of the outer shell, and a boss is fixedly installed on the other end of the threaded joint, a sleeve is fixedly installed on the side of the boss away from the threaded joint, and a limiting end is distributed on the other end of the sleeve, a piston rod is fixedly installed on the bottom of the limiting end, and a piston head is provided at the other end of the piston rod, a guide block is provided on the outer surface of the piston head, a first spring is sleeved on the outer surface of the sleeve, a guide groove is provided on the inner side wall of the sleeve, and a connecting structure is provided on the inner side of the outer shell.

[0006] As a preferred technical solution of the utility model, the connecting structure includes a through hole, an oil inlet hole and an adapter groove. The through hole is opened on the inner side of the outer shell, an oil inlet hole is opened on the inner side of one end of the boss, and the bottom of the through hole is connected to the adapter groove.

[0007] As a preferred technical solution of the utility model, a limiting nut is provided on the inner side of the through hole, and a second spring is fixedly connected to the bottom of the limiting nut, the other end of the second spring is fixedly connected to the valve core, and a vertical rod is fixedly installed on the bottom of the valve core.

[0008] As a preferred technical solution of the utility model, the piston rod is slidably connected to the sleeve through the piston head, and the inner diameter of the sleeve is matched with the outer diameter of the piston head.

[0009] As a preferred technical solution of the utility model, the guide grooves are equidistantly distributed along the center point of the sleeve, and the guide grooves and the sleeve form an integrated structure.

[0010] As a preferred technical solution of the utility model, the valve core is slidably connected to the outer shell through the vertical rod, and the vertical rod is symmetrically distributed along the vertical center line of the valve core.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. The combined use of the piston rod, the guide block and the guide groove can facilitate the subsequent improvement of the stability of the piston rod movement during use, thereby preventing the displacement of the position, which may lead to the subsequent leakage. When the piston rod moves, the piston head will be driven to move synchronously, and then the piston head will drive the guide block to slide along the guide groove, thereby improving the stability of the piston rod during movement. The size of the piston head is matched with the size of the hole on the inner side of the sleeve, thereby further preventing the piston rod from shaking or tilting during movement.

[0013] 2. The combined use of the valve core, vertical rod and adapter groove can improve the stability of the valve core during movement. Since the vertical rods are symmetrically arranged on both sides of the bottom of the valve core and are respectively inserted into the inner sides of the two adapter grooves, when the valve core moves longitudinally, the vertical rods will be driven to slide on the inner sides of the adapter grooves, thereby improving the stability of the valve core during longitudinal movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the pump core of the utility model lubrication pump;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the outer casing of the pump core of the utility model lubrication pump;

[0016] Figure 3 This is a side view structural diagram of the limit nut of the pump core of the utility model lubrication pump;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the pump core casing of the utility model lubrication pump;

[0018] Among them: 1. outer shell; 2. threaded joint; 3. boss; 4. sleeve; 5. limit end; 6. piston rod; 7. piston head; 8. guide block; 9. first spring; 10. guide groove; 11. through hole; 12. oil inlet hole; 13. adapter groove; 14. limit nut; 15. second spring; 16. valve core; 17. vertical rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] Example

[0021] Please refer to Figure 1 As shown, the utility model provides a lubrication pump core, including an outer shell 1, a threaded joint 2 is fixedly installed on one end of the outer shell 1, and a boss 3 is fixedly installed on the other end of the threaded joint 2, a sleeve 4 is fixedly installed on the side of the boss 3 away from the threaded joint 2, and a limited end 5 is distributed on the other end of the sleeve 4, a piston rod 6 is fixedly installed on the bottom of the limited end 5, and a piston head 7 is arranged at the other end of the piston rod 6, a guide block 8 is arranged on the outer surface of the piston head 7, a first spring 9 is sleeved on the outer surface of the sleeve 4, a guide groove 10 is provided on the inner side wall of the sleeve 4, and a connecting structure is provided on the inner side of the outer shell 1;

[0022] When in use, firstly, the entire structure is installed at a designated position through the provided threaded joint 2, and then the entire pump core can be operated by combining the provided oil inlet hole 12 and the piston rod 6 and other structures;

[0023] As a further implementation of this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a sleeve 4 is fixedly installed on one side of the boss 3 away from the threaded joint 2, and a limit end 5 is distributed at the other end of the sleeve 4, a piston rod 6 is fixedly installed at the bottom of the limit end 5, and a piston head 7 is arranged at the other end of the piston rod 6, the piston rod 6 is slidably connected with the sleeve 4 through the piston head 7, and the inner diameter size of the sleeve 4 is matched with the outer diameter size of the piston head 7, a guide block 8 is arranged on the outer surface of the piston head 7, a first spring 9 is sleeved on the outer surface of the sleeve 4, a guide groove 10 is opened on the inner side wall of the sleeve 4, the guide grooves 10 are equidistantly distributed along the center point of the sleeve 4, and the guide grooves 10 and the sleeve 4 form an integrated structure, and the outer A communication structure is provided on the inner side of the housing 1, and the communication structure includes a through hole 11, an oil inlet hole 12 and an adapting groove 13. The through hole 11 is provided on the inner side of the outer housing 1, and an oil inlet hole 12 is provided on the inner side of one end of the boss 3. The bottom of the through hole 11 is connected with the adapting groove 13. A limit nut 14 is provided on the inner side of the through hole 11, and a second spring 15 is fixedly connected to the bottom of the limit nut 14, and a valve core 16 is fixedly connected to the other end of the second spring 15, and a vertical rod 17 is fixedly installed on the bottom of the valve core 16. The valve core 16 is slidably connected to the outer housing 1 through the vertical rod 17, and the vertical rod 17 is symmetrically distributed along the vertical center line of the valve core 16.

[0024] During use, when the piston rod 6 drives the piston head 7 to be located at the inner side of the sleeve 4, the sleeve 4 can be sealed, and then the liquid enters the inner side of the outer shell 1 through the oil inlet hole 12, and then the piston rod 6 moves longitudinally to drive the piston head 7 to slide accordingly, and since the guide blocks 8 are equidistantly distributed along the center point of the piston head 7, and the guide blocks 8 are arranged on the inner side of the guide groove 10, when the piston rod 6 moves, the piston head 7 drives the guide blocks 8 to move accordingly, and then the guide blocks 8 slide along the guide groove 10, so as to improve the stability of the piston head 7 during the movement, thereby improving the The stability of the high piston rod 6 during movement is improved. Since the limit nut 14 is fixedly installed on the inner side of the outer shell 1, the position of the limit nut 14 can be adjusted according to actual usage requirements. When the valve core 16 moves, it will squeeze the second spring 15 and cause it to deform and generate a reverse force. At the same time, the valve core 16 will drive the vertical rod 17 to slide along the adapter groove 13, so as to improve the stability of the valve core 16 during movement. At the same time, the force of the second spring 15 can be adjusted according to the different positions of the limit nut 14, so as to facilitate subsequent use and have higher practicality as a whole.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A lubrication pump core, comprising an outer shell (1), characterized in that: A threaded joint (2) is fixedly mounted on one end of the outer shell (1), and a boss (3) is fixedly mounted on the other end of the threaded joint (2); a sleeve (4) is fixedly mounted on the side of the boss (3) away from the threaded joint (2), and a limiting end (5) is distributed on the other end of the sleeve (4); a piston rod (6) is fixedly mounted on the bottom of the limiting end (5), and a piston head (7) is arranged at the other end of the piston rod (6); a guide block (8) is arranged on the outer surface of the piston head (7); a first spring (9) is sleeved on the outer surface of the sleeve (4), a guide groove (10) is arranged on the inner side wall of the sleeve (4), and a connecting structure is arranged on the inner side of the outer shell (1).

2. A lubrication pump core according to claim 1, characterized in that: The connecting structure comprises a through hole (11), an oil inlet hole (12) and an adapting groove (13); the through hole (11) is provided on the inner side of the outer shell (1); the oil inlet hole (12) is provided on the inner side of one end of the boss (3); and the bottom of the through hole (11) is connected to the adapting groove (13).

3. A lubrication pump core according to claim 2, characterized in that: A limiting nut (14) is arranged on the inner side of the through hole (11), and a second spring (15) is fixedly connected to the bottom of the limiting nut (14), a valve core (16) is fixedly connected to the other end of the second spring (15), and a vertical rod (17) is fixedly installed on the bottom of the valve core (16).

4. A lubrication pump core according to claim 1, characterized in that: The piston rod (6) is slidably connected to the sleeve (4) via the piston head (7), and the inner diameter of the sleeve (4) is matched to the outer diameter of the piston head (7).

5. The lubrication pump core according to claim 1, characterized in that: The guide grooves (10) are distributed at equal distances along the center point of the sleeve (4), and the guide grooves (10) and the sleeve (4) form an integrated structure.

6. A lubrication pump core according to claim 3, characterized in that: The valve core (16) is slidably connected to the outer shell (1) via the vertical rod (17), and the vertical rod (17) is symmetrically distributed along the vertical center line of the valve core (16).

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