Novel plunger pump oil seal assembly

Abstract

The utility model discloses a novel plunger pump oil seal assembly, which relates to the technical field of oil seal assemblies, and comprises a pull rod and a water retaining mechanism, the water retaining mechanism used for reducing emulsification is arranged in the middle of the surface of the pull rod, and the water retaining mechanism comprises a water retaining plate, a screwing screw cover, an adjusting screw hole, a breaking line, an extending end and a clamping head, and a screwing screw cover is mounted on the surface of the front end of the water baffle. Compared with an existing device, the novel plunger pump oil seal assembly has the advantages that water on the pull rod can be blocked through the water blocking mechanism, so that the problem of oil body emulsification caused by the fact that the water enters oil is solved, meanwhile, the water blocking plate can be replaced in time when the water blocking plate is aged, damaged and the like, and the service life of the water blocking plate is prolonged. According to the oil seal assembly, the water blocking durability and the stable using effect of the oil seal assembly are guaranteed, the pressure can be circulated and released through the pressure reducing mechanism when the pressure is gathered on the inner side of the oil seal base, and therefore the possibility that oil leaks due to the fact that the oil seal base is pressed and leaks can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seal assemblies, in particular to a novel plunger pump oil seal assembly. Background Art

[0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating motion of the plunger in the cylinder to change the volume of the sealed working chamber to achieve oil suction and oil pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency and convenient flow regulation. The plunger pump is widely used in high pressure, large flow and flow regulation occasions, and the plunger pump often needs to work with the oil seal assembly when working.

[0003] However, when the existing plunger pump oil seal assembly is used, it has poor barrier properties against water droplets on the column, which easily allows some water to enter the oil seal and cause oil emulsification, thus affecting the normal use of the equipment. At the same time, when the water-blocking effect deteriorates, it is also convenient to replace it, affecting the long-term use of the oil seal assembly.

[0004] Therefore, the existing structure and defects are studied and improved, and a new type of plunger pump oil seal assembly is provided, in order to achieve the purpose of having more practical value. Utility Model Content

[0005] The purpose of the utility model is to provide a novel plunger pump oil seal assembly to solve the problem mentioned in the above background technology that the existing plunger pump oil seal assembly has poor barrier property against water droplets on the column when in use, which easily allows some water to enter the oil seal and cause oil emulsification, thus affecting the normal use of the equipment. At the same time, when the water-blocking effect deteriorates, it is also convenient to replace it, which affects the long-term use of the oil seal assembly.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel plunger pump oil seal assembly, comprising a pull rod and a water retaining mechanism, wherein the water retaining mechanism for reducing emulsification is arranged at the middle of the surface of the pull rod, and the water retaining mechanism comprises a water retaining plate, a screw thread cover, an adjusting thread hole, a breaking line, an extension end and a snap-fit ​​head, a screw thread cover is installed on the front end surface of the water retaining plate, and an adjusting thread hole is arranged at the bottom of the screw thread cover, a breaking line is opened in the middle of the surface of the water retaining plate, and an extension end is arranged at the bottom of the breaking line, and a snap-fit ​​head is fixed to one side of the inner part of the water retaining plate.

[0007] Furthermore, an oil seal seat is arranged outside the front end of the pull rod, and a pressure relief mechanism for reducing leakage is arranged at the bottom of the oil seal seat.

[0008] Furthermore, the decompression mechanism includes a guide seat and a bonding layer, and the bonding layer is provided in the middle part of the inner side of the guide seat.

[0009] Furthermore, the decompression mechanism also includes a locking groove, and the locking grooves are arranged on both sides above the guide seat.

[0010] Furthermore, the pressure reducing mechanism also includes an oil through port, and the oil through port is opened in the middle of both sides of the guide seat.

[0011] Furthermore, the guide seat is snap-connected with the oil seal seat via a snap-in groove, and the oil port is communicated with the guide seat.

[0012] Compared with the prior art, the utility model provides a new plunger pump oil seal assembly, which has the following beneficial effects:

[0013] 1. The utility model can block the water on the pull rod through the water-blocking mechanism to prevent the water from entering the oil and causing the problem of oil emulsification. At the same time, the water-blocking plate can be replaced in time when it is aged and damaged, so as to ensure the long-term water blocking and the stable use effect of the oil seal assembly;

[0014] 2. The utility model can release the pressure through the pressure relief mechanism when the pressure accumulates inside the oil seal seat, thereby avoiding the possibility of oil leakage caused by the oil seal seat being pressurized and leaking, which is beneficial to improving the use effect and life of the oil seal assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of a new type of plunger pump oil seal assembly of the utility model;

[0016] Figure 2 This is a schematic diagram of a partial cross-sectional structure of a new type of plunger pump oil seal assembly water retaining plate in the front view of the utility model;

[0017] Figure 3 This utility model is a new type of plunger pump oil seal assembly Figure 2 The enlarged structural diagram at A in the middle;

[0018] Figure 4 The utility model is a schematic diagram of a top view and a cross-sectional structure of an oil seal seat of a novel plunger pump oil seal assembly.

[0019] In the figure: 1. pull rod; 2. oil seal seat; 3. water retaining mechanism; 301. water retaining plate; 302. screw thread cover; 303. adjusting thread hole; 304. breaking line; 305. extension end; 306. engaging head; 4. pressure reducing mechanism; 401. guide seat; 402. bonding layer; 403. positioning groove; 404. oil port. DETAILED DESCRIPTION

[0020] 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.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] like Figure 1-Figure 3 As shown, a novel plunger pump oil seal assembly includes a pull rod 1 and a water retaining mechanism 3, the water retaining mechanism 3 for reducing emulsification is arranged in the middle of the surface of the pull rod 1, the water retaining mechanism 3 includes a water retaining plate 301, a screw cover 302, an adjusting screw hole 303, a breaking line 304, an extension end 305 and a clamping head 306, the front end surface of the water retaining plate 301 is installed with a screw cover 302, and the bottom of the screw cover 302 is provided with an adjusting screw hole 303, the middle of the surface of the water retaining plate 301 is provided with a breaking line 304, and the bottom of the breaking line 304 is provided with an extension end 305, and the inner side of the water retaining plate 301 is fixed with a clamping head 306;

[0023] By twisting the thread cover 302 and adjusting the position of the thread hole 303, the water baffle 301 can be installed in a suitable position to block the water on the pull rod 1, so as to prevent the water from entering the oil and causing the problem of oil emulsification. Through the snap-fit ​​head 306 and the extension end 305, the water baffle 301 can be opened by using the breaking line 304, so that it is convenient to install and remove the water baffle 301 from the pull rod 1, avoiding the trouble of disassembling the pull rod 1 first and then disassembling the water baffle 301, so that the water baffle 301 can be replaced in time when it is aged and damaged, so as to ensure the long-term water blocking and stable use effect of the oil seal assembly;

[0024] like Figure 1 and Figure 4As shown, an oil seal seat 2 is provided on the outside of the front end of the pull rod 1, and a pressure relief mechanism 4 for reducing leakage is provided at the bottom of the oil seal seat 2. The pressure relief mechanism 4 includes a guide seat 401 and a bonding layer 402. The bonding layer 402 is provided at the inner middle part of the guide seat 401. The pressure relief mechanism 4 also includes a positioning groove 403. The positioning grooves 403 are provided on both sides above the guide seat 401. The pressure relief mechanism 4 also includes an oil through port 404. The oil through port 404 is provided in the middle of both sides of the guide seat 401. The guide seat 401 is clamped with the oil seal seat 2 via the clamping groove 403, and the oil passage 404 is connected to the guide seat 401. Through the oil passage 404, after the guide seat 401 is installed using the clamping groove 403, the one-way valve sheet arranged in the oil passage 404 can be used to release the pressure when the pressure accumulates on the inner side of the oil seal seat 2, thereby avoiding the possibility of oil leakage due to the pressure on the oil seal seat 2, which is beneficial to improving the use effect and life of the oil seal assembly.

[0025] Working principle: When using the new plunger pump oil seal assembly, first, by twisting the thread cover 302 and adjusting the position of the thread hole 303, the water baffle 301 can be installed in a suitable position to block the water on the pull rod 1, and then through the locking head 306 and the extension end 305, the water baffle 301 can be opened by using the breaking line 304, so as to facilitate the installation and removal of the water baffle 301 from the pull rod 1. The water baffle 301 can be replaced in time when it is aging or damaged. Then, through the oil port 404, after the guide seat 401 is installed by using the locking groove 403, the one-way valve sheet arranged in the oil port 404 can be used to release the pressure when the pressure accumulates on the inner side of the oil seal seat 2, so as to avoid the possibility of oil leakage caused by the pressure leakage of the oil seal seat 2.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel plunger pump oil seal assembly, comprising a pull rod (1) and a water retaining mechanism (3), characterized in that: The water retaining mechanism (3) for reducing emulsification is arranged in the middle of the surface of the pull rod (1), and the water retaining mechanism (3) comprises a water retaining plate (301), a screw thread cover (302), an adjustment thread hole (303), a breaking line (304), an extension end (305) and a snap-fit ​​head (306). The front end surface of the water retaining plate (301) is provided with a screw thread cover (302), and the bottom of the screw thread cover (302) is provided with an adjustment thread hole (303). The middle of the surface of the water retaining plate (301) is provided with a breaking line (304), and the bottom of the breaking line (304) is provided with an extension end (305). The snap-fit ​​head (306) is fixed to one side of the inner part of the water retaining plate (301).

2. A novel plunger pump oil seal assembly according to claim 1, characterized in that: An oil seal seat (2) is arranged outside the front end of the pull rod (1), and a pressure relief mechanism (4) for reducing leakage is arranged at the bottom of the oil seal seat (2).

3. A novel plunger pump oil seal assembly according to claim 2, characterized in that: The decompression mechanism (4) comprises a guide seat (401) and a bonding layer (402), and the bonding layer (402) is provided in the middle part of the inner side of the guide seat (401).

4. A novel plunger pump oil seal assembly according to claim 3, characterized in that: The decompression mechanism (4) further comprises a locking groove (403), and the locking grooves (403) are arranged on both sides above the guide seat (401).

5. The novel plunger pump oil seal assembly according to claim 3 is characterized in that: The pressure reducing mechanism (4) further comprises an oil through port (404), and the oil through ports (404) are provided in the middle of both sides of the guide seat (401).

6. A novel plunger pump oil seal assembly according to claim 5, characterized in that: The guide seat (401) is clamped with the oil seal seat (2) via the clamping groove (403), and the oil passage (404) is connected to the guide seat (401).

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